WO2008013325A1 - Opening/closing device for tank - Google Patents
Opening/closing device for tank Download PDFInfo
- Publication number
- WO2008013325A1 WO2008013325A1 PCT/JP2007/065311 JP2007065311W WO2008013325A1 WO 2008013325 A1 WO2008013325 A1 WO 2008013325A1 JP 2007065311 W JP2007065311 W JP 2007065311W WO 2008013325 A1 WO2008013325 A1 WO 2008013325A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- opening
- valve
- tank
- closing
- closing device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K24/00—Devices, e.g. valves, for venting or aerating enclosures
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K15/04—Tank inlets
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0011—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K15/04—Tank inlets
- B60K15/0406—Filler caps for fuel tanks
- B60K2015/0419—Self-sealing closure caps, e.g. that don't have to be removed manually
- B60K2015/0429—Self-sealing closure caps, e.g. that don't have to be removed manually actuated by the nozzle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K15/04—Tank inlets
- B60K15/0406—Filler caps for fuel tanks
- B60K2015/0432—Filler caps for fuel tanks having a specific connection between the cap and the vehicle or tank opening
- B60K2015/0445—Filler caps for fuel tanks having a specific connection between the cap and the vehicle or tank opening using hinges
Definitions
- the present invention relates to a tank opening / closing device for supplying fuel to a fuel tank through a fuel passage, and more particularly to a mechanism for opening / closing the fuel passage.
- the inlet of an inlet pipe for refueling an automobile is generally sealed with a fuel cap that can be attached and detached by rotating it.
- These fuel caps require not only poor operability because they require multiple rotations when refueling, but also have to take measures to prevent their placement and loss when removed.
- a fuel cap provided with a flap valve mechanism as disclosed in Japanese Patent Application Laid-Open No. 2 0 1 — 4 7 8 7 6.
- the flap valve mechanism is sealed by closing the inlet of the inlet pipe with the flap valve and energizing with a spring, and when refueling, push the flap valve against the spring energizing force with a fuel gun. Open the inlet.
- the flap valve mechanism is equipped with a pressure adjustment valve to adjust the internal pressure of the fuel tank.
- this flap valve mechanism has a problem that if a pressure regulating valve is attached to the flap valve, the mechanism becomes complicated and the number of parts increases. Disclosure of the invention
- An object of the present invention is to provide a tank opening / closing device having a simple structure and having an opening / closing mechanism for an inlet during refueling and a valve opening / closing mechanism for adjusting the internal pressure of a fuel tank.
- a tank opening and closing device that opens and closes an inlet for supplying fuel to a fuel tank; and a tank opening forming member that includes the inlet and a fuel passage that guides fuel supplied from a fuel gun through the inlet to the fuel tank;
- a valve opening and closing mechanism that opens and closes the inlet and adjusts the internal pressure of the fuel tank
- a retracting mechanism for selectively moving the valve opening / closing mechanism between a closing position and a fueling position in conjunction with the fueling gun or external force
- the closed position is a position where the valve body adjusts the internal pressure of the fuel tank by opening and closing the inlet.
- the refueling position is a position where the valve body can retract from the inlet and supply fuel.
- the valve opening / closing mechanism in order to supply the fuel, the valve opening / closing mechanism is moved from the closed position to the fueling position by operating the retreating mechanism by a fueling gun or an external force, and fuel from the fueling gun is supplied. Supply to the fuel tank through the fuel passage.
- the valve open / close mechanism functions as an open / close valve that opens and closes when refueling, and also functions as a pressure regulating valve that opens when the differential pressure between the internal pressure of the fuel tank and the outside air exceeds a predetermined value, eliminating the need for multiple valves. The number of parts such as springs can be reduced.
- the valve opening / closing mechanism can reduce the number of parts and simplify the configuration because only the gasket is required to seal the fuel passage of the tank opening forming member.
- the valve body of the valve opening and closing mechanism is pressed uniformly against the regasket by the spring, so the seal Excellent in properties.
- the valve opening / closing mechanism since the valve opening / closing mechanism is not pushed by the oil gun to open, the valve opening / closing mechanism needs to be designed with an emphasis on sealing performance without regard to mechanical strength and durability. It becomes easy.
- valve opening / closing mechanism functions as an opening / closing valve that opens and closes when refueling, and also functions as a pressure regulating valve that opens when the pressure difference between the internal pressure of the fuel tank and the outside air exceeds a predetermined value.
- the number of parts such as springs can be reduced.
- the retracting mechanism comprises: moving the valve body in the axial direction of the gasket; and moving the valve body in a direction crossing the axial direction.
- the inlet configured to be opened can be configured to open the inlet by moving the valve body along an arc locus.
- the retracting mechanism can be configured such that after the valve body is moved in the axial direction, it is moved in the direction intersecting, or simultaneously moved in the direction intersecting the axial direction.
- the intersecting direction may be an oblique direction in addition to a direction perpendicular to the axial direction.
- the valve opening / closing mechanism includes: a valve support moving body that supports the valve body so as to be slidable in the opening / closing direction; and the valve support moving body fixed to the tank opening forming member. It is possible to adopt a configuration including a supported mechanism that supports the movable member so as to be movable in the intersecting direction. With this configuration, the valve body can move in a stable posture by the valve support moving body and the supported mechanism.
- a configuration in which a cantilever spring for reducing sliding resistance is provided at a sliding position with the supported mechanism can be employed.
- Cantilever spring In addition to reducing sliding resistance between the valve support moving body and the supported mechanism, smooth movement of the valve opening / closing mechanism can be obtained, and rattling noise due to vibrations can be prevented.
- the supported mechanism it is possible to adopt a configuration including a return spring that urges the valve support moving body from the oil supply position toward the closed position.
- a return spring that urges the valve support moving body from the oil supply position toward the closed position.
- the tank opening forming member includes an opening for inserting a fuel gun
- the retracting mechanism includes a shatter mechanism that opens and closes the opening by an oil gun or an external force.
- a link mechanism that opens and closes the valve opening / closing mechanism in conjunction with the shirt evening mechanism.
- the valve opening / closing mechanism is pressed by pressing the valve opening / closing mechanism in conjunction with the opening operation of the shirter mechanism in a closed state of the shirter mechanism.
- a configuration including an actuating member for opening operation can be taken. With this configuration, even if an external force is applied to the shirt evening mechanism due to a vehicle collision, the link mechanism does not exert an external force applied to the shirt evening mechanism on the valve opening / closing mechanism, so that the sealing performance of the valve opening / closing mechanism is not deteriorated.
- the operating member includes an arm and a pressing body fixed to one end of the arm, and the valve body is operated to open the valve opening / closing mechanism by being pressed by the pressing body. It is possible to adopt a configuration including a pressed portion to be pressed.
- the actuating member is provided between a rotation support portion fixed to one end of the arm and rotatably supported by the tank opening forming member, and the pressing body and the rotation support portion.
- the shirt evening mechanism includes a slide guide member provided in the shirt evening mechanism, and the slide guide member slides the arm in conjunction with the opening operation of the shirt evening mechanism.
- the actuating member can be pivoted about the pivot support portion, and the valve opening / closing mechanism can be opened and operated by the pressing body. With this configuration, since the actuating member is slidably supported by the shirt mechanism, the link mechanism can be simplified.
- a tank opening and closing device that opens and closes an inlet for supplying fuel to a fuel tank; and a tank opening forming member that includes the inlet and a fuel passage that guides fuel supplied from a fuel gun through the inlet to the fuel tank;
- a valve body a valve support moving body that houses the valve body, and a spring that biases the valve body toward the gasket, and the valve body opens and closes the inlet and controls the internal pressure of the fuel tank.
- a valve opening and closing mechanism to be adjusted;
- a retraction mechanism comprising: a shaft support portion that rotatably supports the valve support moving body on the opening peripheral edge portion of the inlet; and a spring that biases the valve body in a direction to close the inlet. It is characterized by that.
- valve opening and closing mechanism is pivotally supported by the retracting mechanism with respect to the tank opening forming member, and an external force such as a fueling gun or a button can be directly applied to the valve opening mechanism.
- the link mechanism is unnecessary and the configuration is simple.
- FIG. 1 is an axial sectional view of a tank opening / closing device according to a first embodiment of the present invention.
- FIG. 2 is a cross-sectional view showing the opening / closing mechanism in the closed position.
- FIG. 3 is a cross-sectional view showing the opening / closing mechanism in the refueling position.
- FIG. 4 is a perspective view showing the opening / closing mechanism.
- FIG. 5 is an exploded perspective view of the opening / closing mechanism.
- FIG. 6 is a perspective view of the valve support moving body as viewed obliquely from below.
- FIG. 7 is an explanatory diagram for explaining the operation of the valve opening / closing mechanism.
- FIG. 8 is a cross-sectional view showing the opening / closing mechanism according to the second embodiment.
- FIG. 9 is an explanatory diagram for explaining the operation of the opening / closing mechanism of FIG.
- FIG. 10 is a sectional view showing an opening / closing mechanism according to a third embodiment.
- FIG. 11 is a perspective view of the opening / closing member and the operating member as viewed from below.
- FIG. 12 is an explanatory diagram for explaining the operation of the third embodiment.
- FIG. 13 is an explanatory diagram for explaining the operation following FIG.
- FIG. 14 is a sectional view showing a tank opening / closing device according to a fourth embodiment.
- FIG. 15 is a view from the direction of the arrow d 15 in FIG.
- FIG. 16 is an exploded sectional view of the tank opening / closing device.
- Fig. 17 is an enlarged cross-sectional view of the vicinity of the valve opening / closing mechanism.
- FIG. 18 is an explanatory diagram for explaining the operation of the valve opening / closing mechanism.
- FIG. 19 is an explanatory diagram for explaining the operation of the valve opening / closing mechanism.
- FIG. 20 is an explanatory view illustrating the valve separation mechanism.
- FIG. 21 is a sectional view taken along line 2 1-2 1 in FIG.
- FIG. 22 is an explanatory diagram for explaining the operation of the valve separation mechanism.
- FIG. 23 is an explanatory diagram for explaining the oiling operation of the opening / closing device for the evening.
- FIG. 24 is a cross-sectional view showing the opening / closing device for the evening sun according to the fifth embodiment.
- FIG. 25 is an explanatory diagram for explaining the operation of the valve opening / closing mechanism.
- FIG. 26 is an explanatory view illustrating the opening / closing operation of the valve opening / closing mechanism.
- FIG. 27 is an explanatory diagram for explaining the operation following FIG.
- FIG. 28 is a sectional view showing a tank opening / closing device according to a sixth embodiment.
- FIG. 29 is a perspective view showing a state in which the pressing member is removed from the valve body.
- FIG. 30 is an exploded sectional view of the tank opening / closing device.
- FIG. 31 is a sectional view showing the opening / closing mechanism according to the seventh embodiment.
- FIG. 32 is a perspective view showing the operating member.
- Fig. 3 3 is a cross-sectional view taken along line 3 3-3 3 of Fig. 32.
- FIG. 34 is an explanatory diagram for explaining the operation of the tank opening / closing device.
- FIG. 35 is an explanatory diagram for explaining the operation following FIG. BEST MODE FOR CARRYING OUT THE INVENTION
- FIG. 1 is an axial sectional view of a tank opening / closing device according to a first embodiment of the present invention.
- the tank opening and closing device 10 is a mechanism for supplying fuel to the fuel tank without using a fuel cap, that is, by opening and closing the fuel lid and opening and closing the fuel passage with an external force from the fuel gun. This is a mechanism for supplying fuel from a fuel gun to a fuel tank (not shown).
- the detailed configuration of the tank opening / closing device will be described below.
- the tank opening / closing device 10 includes a crank opening forming member 11 having a fuel passage 11 P connected to the fuel tank, and an opening / closing mechanism 30 for opening / closing the fuel passage 11 P.
- the tank opening forming member 1 1 is a pipe body having a fuel passage 1 1 P, a connection pipe 1 2 connected to the fuel tank, a pipe body 1 4 connected to the upper end of the connection pipe 1 2, and a pipe And an opening forming member 16 fixed to the upper part of the main body 14.
- the connecting pipe 12 includes a reduced diameter part 1 2 a obtained by gradually reducing the diameter of the fuel tank side of the pipe body 14 and a straight pipe part 1 2 b connected to the reduced diameter part 1 2 a. It is integrally formed.
- the pipe body 14 is connected to the upper portion of the reduced diameter portion 1 2 a.
- Pipe body 1 of 4 In the upper part, the upper wall 1 4 a is fixed to the body.
- the upper wall 14 a is provided with an inlet 14 P that constitutes a part of the fuel passage 1 1 P.
- a support wall 14 c is fixed in the fuel passage 11 P inside the pipe body 14.
- a through hole 14 d is formed in the support wall 14 c.
- the opening forming member 16 is mounted on the upper portion of the pipe body 14 and includes a cylindrical side wall portion 16 a and an upper wall portion 16 b, and a pipe is formed in the lower engagement hole 16 c.
- the pipe 14 is attached to the pipe body 14 by engaging an engaging claw 14 e formed on the upper part of the body 14.
- the upper wall portion 16b of the opening forming member 16 is composed of a flat portion 16d and an inclined surface 16e.
- the inclined surface 16 e is formed so that the center portion is recessed substantially over a semicircle, is connected to the opening portion 16 f, and guides the fuel gun.
- FIG. 2 and 3 are cross-sectional views showing the opening / closing mechanism 30.
- FIG. 2 shows a closed state of the opening / closing mechanism 30
- FIG. 3 shows an opened state of the opening / closing mechanism 30.
- the opening / closing mechanism 30 includes a shirt opening mechanism 40, a valve opening / closing mechanism 50, and a link mechanism 60.
- the refueling lid is opened, a refueling gun, etc.
- the valve opening / closing mechanism 50 is opened via the link mechanism 60 in conjunction with the shirt evening mechanism 40, and the fuel passage 1 1 P is opened. is there.
- a part of the shirter mechanism 40 and the link mechanism 60 constitute a retraction mechanism.
- FIG. 4 is a perspective view showing the opening / closing mechanism 30, and FIG. 5 is an exploded perspective view showing the opening / closing mechanism 30.
- the shirt evening mechanism 40 includes an opening / closing member 4 1 and a spring 4 2.
- the opening / closing member 41 includes a disk part 41a that opens and closes the opening 16f, and a rotation support part 41b integrally formed at the end of the disk part 41a.
- the rotation support portion 4 1 b is pivotally supported via a shaft 4 1 c in a shaft hole 1 7 a of a support 1 7 (FIG. 5 shows one) formed parallel to the inner wall of the opening forming member 16. Has been.
- the spring 4 2 is a coil spring and is stretched between the rotation support portion 4 1 b and the engagement hole 1 7 b of the support body 17 to urge the opening / closing member 4 1 in the closing direction.
- the valve opening / closing mechanism 50 serves as both a mechanism for opening and closing the inlet 14 P and a mechanism for adjusting the pressure in the fuel tank as a negative pressure valve.
- the valve opening / closing mechanism 50 includes a valve body 52, a valve support moving body 5 4, a supported mechanism 5 6, springs 5 7 and 5 7, a spring 5 8, and a gasket GS.
- the valve body 52 includes an upper surface portion 52a that forms a seat surface and sits on and separates from the gasket GS, and a cylindrical side wall portion 52b formed downward from the outer periphery of the upper surface portion 52a.
- the cup shape is opened downward by the upper surface portion 52a and the sidewall portion 52b.
- On the upper surface portion 52a a pressed portion 53 formed in a recess is formed.
- the pressed part 53 has a curved surface 53a and a pressing surface 53b for interlocking with the link mechanism 60.
- the valve support moving body 5 4 includes a cup-shaped moving body 5 4 c which is composed of a side wall 5 4 a and a bottom wall 5 4 b that are open upward, and an upper space that is open upward. It is a valve storage chamber 5 4 d for storing the spring 5 8.
- the valve storage chamber 5 4 d stores a spring 58, and urges the valve body 52 upward.
- An upper guide rib 5 4 f and a lower guide rib 5 4 g are formed on the side wall 5 4 a of the movable body 5 4 c so as to protrude horizontally and from both sides.
- the upper guide ribs 5 4 f and the lower guide ribs 5 4 g are parts for sliding in a stable posture within the supported mechanism 56.
- FIG. 6 is a perspective view of the valve support moving body 54 viewed from below. On the bottom wall 5 4 b of the valve support moving body 5 4, four cantilever springs 5 4 j are formed.
- the cantilever springs 5 4 j are for reducing the sliding resistance with the supported mechanism 5 6, and the arm 5 4 k with a part of the bottom wall 5 4 b notched and the arm 5 4 k It is made up of 54 m with its tip protruding downward. Further, on both sides of the lower surface of the movable body 5 4 c, spring support protrusions 5 4 p that press the springs 5 7 (FIG. 5) are provided.
- the supported mechanism 5 6 is fixed to the pipe body 14 and supports the valve support moving body 5 4 slidably.
- the lower support plate is fixed to the inner wall of the pipe body 14.
- a guide groove 5 6 c and an insertion groove 5 6 d are formed on each guide side wall 5 6 b.
- the guide groove 5 6 c is formed along the horizontal direction, and guides the valve support moving body 54 in the horizontal direction by following the guide projection 5 4 e of the valve support moving body 54.
- the insertion groove 5 6 d is a groove for inserting the guide protrusion 5 4 e into the guide groove 5 6 c.
- return springs 5 7 and 5 7 for returning the valve support moving body 54 to the original position are arranged on the inner side of the guide side walls 5 6 b and 5 6 b.
- Each spring 5 7 is loaded in a storage groove 5 6 e formed on both sides of the upper surface of the lower support plate 5 6 a and is pushed by the spring support protrusion 5 4 p of the valve support moving body 5 4. Accumulate restoring force.
- the gasket GS is an annular member formed of a rubber material, and is press-fitted and fixed to the seal holding portion 14 f formed at the peripheral edge of the inlet 14 P of the pipe body 14.
- the inlet 14 P is closed with 2 sealed by the pressing force of the spring 58.
- the link mechanism 60 is configured to open the valve opening / closing mechanism 50 by transmitting the force of the shirt evening mechanism 40 to the valve opening / closing mechanism 50, and to connect the ring rod 6 2 and the actuating member 6 4 to each other.
- the link rod 62 has an upper end that is pivotally supported by the pivot support portion 41 b and a second end that is bifurcated so that the link rod 62 can pivot to one end of the actuating member 64. And a connecting end 6 2 b to be connected.
- the actuating member 6 4 is a member that is connected to the link rod 6 2 and applies a moving force to the valve opening / closing mechanism 50.
- the rotation support portion 6 4 a connected to the link rod 6 2 and the rotation support portion 6 A curved arm 6 4 fixed to 4 a and a pressing body 6 4 c as a sphere formed at the tip of the arm 6 4 b are provided. That is, the upper end of the link bar 6 2 is connected to the rotation support part 4 1 b of the opening / closing member 4 1 via the shaft 6 3 a, and the lower end of the link bar 6 2 is the rotation of the actuating member 6 4. Support part 6 4 A to shaft 6 3 b are rotatably connected.
- the actuating member 64 is rotatably supported in the shaft hole 17c of the support body 17 via the shaft 65a by the rotation support part 64a.
- the pressing body 6 4 c presses the pressing surface 5 3 b of the pressed part 5 3, and the valve body 5 2 is integrated with the valve support moving body 5 4 in a circular direction d 4 Pressed Move.
- the upper and lower guide ribs 5 4 f and 5 4 g shown in FIG. 5 are guided along the guide side walls 5 6 b of the supported mechanism 5 6, and the guide protrusions 5 4 e are guided grooves 5 6 Bear c to guide horizontally.
- the valve opening / closing mechanism 50 is separated by the upper surface portion 5 2 a of the valve body 52 being moved obliquely downward along the locus of the arc with respect to the gasket GS.
- valve support moving body 54 stores the spring force by the spring support protrusions 5 4 p elastically deforming the springs 57.
- the valve opening / closing mechanism 50 is retracted horizontally, so that the inlet 14P is opened and the fuel gun FG is inserted through the inlet 14P. Refuel the fuel passage 1 1. That is, if the opening / closing member 41 of the shirt evening mechanism 40 is pushed with the fueling gun FG, the valve opening / closing mechanism 50 opens the inlet 14 P, so that fuel can be supplied.
- the refueling gun F G releases the spring force of the spring 4 2 via the disc 4 1 a.
- the disc portion 4 1 a rotates counterclockwise around the shaft 4 1 c of the rotation support portion 4 1 b, pulls down the link rod 6 2, and further operates the operating member 6 4 Move counterclockwise.
- the actuating member 6 4 rotates counterclockwise, the pressing body 6 4 c is disengaged from the pressed portion 53 of the valve opening / closing mechanism 50. Accordingly, the restoring force of the spring 5 7 moves the valve support moving body 5 4 and the valve body 52 of the valve opening / closing mechanism 50 together in the horizontal direction, and the valve body 52 closes the inlet 14 P.
- the tank opening / closing device 10 according to the above embodiment provides the following operational effects.
- the valve opening / closing mechanism 50 functions as an opening / closing valve that opens and closes during refueling, and also functions as a pressure regulating valve that opens when the differential pressure between the internal pressure of the fuel tank and the outside air exceeds a predetermined value. There is no need to provide multiple valves, and the number of parts such as springs can be reduced.
- the valve opening / closing mechanism 50 can reduce the number of parts and simplify the configuration because the gasket GS is the only means for sealing the inlet 14 P of the tank opening forming member 11. In addition, since the valve element 52 of the valve opening / closing mechanism 50 is pressed uniformly against the trigger sleeve GS by the spring 58, the sealing performance is excellent.
- valve opening / closing mechanism 50 is not pushed by the lubrication gun FG to perform its opening operation, so even if it does not focus on mechanical strength and durability, it should be designed with emphasis on sealing performance. Well, it is easy to design.
- valve opening / closing mechanism 50 slides horizontally, the valve body 52 slightly moves in the axial direction of the gasket GS with respect to the gasket GS.
- the gasket GS has excellent durability.
- the valve opening / closing mechanism 50 includes a valve support moving body 54 that supports the valve body 52 slidably in the opening / closing direction, and a supported mechanism 56 that supports the valve support moving body 54 movably in the horizontal direction. Therefore, the valve body 52 can be moved in a stable posture by the valve support moving body 54 and the supported mechanism 56.
- the cantilever spring 54 j of the valve support moving body 54 reduces the sliding resistance between the valve support moving body 54 and the supported mechanism 56 to obtain a smooth movement of the valve opening / closing mechanism 50. In addition, it can prevent rattling noise caused by vibration.
- the actuating member 6 4 of the link mechanism 60 is separated from the valve element 52 of the valve opening / closing mechanism 50 when the shirter mechanism 40 is closed, and is added to the shirter mechanism 40 by the collision of the vehicle. Since an external force is not exerted on the valve opening / closing mechanism 50, the sealing performance of the valve opening / closing mechanism 50 is not deteriorated.
- FIG. 8 and 9 are cross-sectional views according to the second embodiment.
- FIG. 8 shows a closed state of the tank opening / closing device
- FIG. 9 shows an opened state of the tank opening / closing device.
- the opening / closing mechanism 30 B according to the present embodiment is characterized by a spring mechanism that simplifies the configuration of the shirt evening mechanism and the link mechanism and returns the valve opening / closing mechanism 50 B.
- the opening / closing mechanism 30 B includes an operating member 6 4 B, a spring 4 2 B, and a valve opening / closing mechanism 50 B.
- the actuating member 6 4 B has the same shape as that of the actuating member of the first embodiment, and includes a rotating support portion 6 4 Ba, an arm 6 4 B b, and a pressing body 6 4 B c.
- the rotation support portion 6 4 Ba is rotatably supported by the support body 17 B, and the arm 6 4 B b is disposed facing the opening portion 16 B f.
- the actuating member 6 4 B is formed on the support 1 7 B by urging the actuating member 6 4 B in the direction of the opening 1 6 B f by the spring 4 2 B supported by the support 1 7 B. Stopper 1 7 B d Stops rotation.
- a connecting projection 5 4 Be is projected from the side wall 5 4 B a of the valve support moving body 5 4 B.
- the connecting rod 59B is supported by the pipe body 14B so as to be rotatable about the shaft 59Ba.
- the elongated hole 5 9 B b at one end of the connecting rod 5 9 B has the connecting protrusion 5 4 B e inserted therein, and the support end 5 9 B c at the other end fixed one end of the spring 5 7 B.
- the structure is simplified by omitting the shirt mechanism and directly operating the actuating member 64 B with the fuel gun.
- FIG. 10 is a sectional view showing an opening / closing mechanism according to a third embodiment.
- the opening / closing mechanism 30 C of this embodiment is characterized by a simplified structure of the shirt evening mechanism 40 C and the link mechanism 60 C. That is, the shirt evening mechanism 4 OC includes an opening / closing member 4 1 C.
- the opening / closing member 4 1 C includes a disc 4 1 C a that opens and closes the opening 16 C f, and a pivot that is rotatably supported by the support 17 C at the end of the disc 4 1 C a And a support portion 4 1 C b.
- the link mechanism 60 C includes an actuating member 6 4 C and a spring 42 C that biases the actuating member 6 4 C with a spring force in the closing direction.
- the actuating member 6 4 C has substantially the same shape as the actuating member 6 4 C of the first embodiment, and includes a rotation support portion 6 4 C a, an arm 6 4 C b, and a pressing body 6 4 C c. Further, a slide body 6 4 C d is projected in the middle of the key 6 4 C b.
- the rotation support portion 6 4 Ca shown in FIG. 10 is rotatably supported by the support body 17 C. The actuating member 6 4 C is urged by the spring 4 2 C supported by the support 17 C in the direction of the opening 16 C f.
- a slide guide member 4 3 C is fixed to the back surface of the opening / closing member 4 1 C shown in FIG.
- the slide guide member 4 3 C includes a guide body 4 3 C a and leg portions 4 3 C b bent on both sides of the guide body 4 3 C a.
- the guide body 4 3 C a and the opening / closing member 4 1 C The gap between the back of the slide is 4 3 C c.
- a slide body 6 4 C d of the operating member 6 4 C is slidably supported in the slide gap 4 3 C c.
- the pressing body 64 Cc is inserted into the pressed part 53 C of the valve body 52 C by the rotation of the actuating member 64 C. Then, as shown in FIG. 13, when the refueling gun FG is inserted deeply into the fuel passage 11 P, the pressing member 6 4 C c is moved to the pressed part 5 in accordance with the rotation of the operating member 6 4 C. 3 C pressing surface 5 3 C b is pressed, valve opening / closing mechanism 5 0 C is retracted from inlet 14 P, and inlet 14 P is opened.
- FIG. 14 is a sectional view showing a tank opening / closing device according to the fourth embodiment
- FIG. 15 is a view seen from the direction of the arrow d 15 in FIG.
- the fourth embodiment is characterized in that the opening / closing mechanism opens and closes as the opening / closing mechanism moves integrally by inserting the fuel gun.
- the detailed configuration of the tank opening / closing device will be described below.
- Tank opening and closing device 1 0 0 is an opening 1 1 4 having a tank opening forming member 1 1 1 having an inlet 1 1 4 P connected to a fuel tank (not shown) and an opening and closing mechanism 1 2 0 for opening and closing the inlet 1 1 4 P And.
- FIG. 16 is an exploded sectional view of the tank opening and closing device 100.
- the tank opening forming member 1 1 1 is a branch pipe, a connection pipe 1 1 2 connected to a fuel tank (not shown), and a casing body 1 1 4 connected to the upper end of the connection pipe 1 1 2 And an opening forming member 1 1 6 fixed to the upper part of the casing main body 1 1 4.
- Connection pipe 1 1 2 is provided with a fuel passage 1 1 2 P, is branched from the casing body 1 1 4, and is bent.
- the casing body 1 1 4 is composed of a semi-cylindrical side wall 1 1 4 a and a plate-like wall 1 1 4 b to form a side wall 1 1 4 c, and the side wall 1 1 4 is the bottom wall 1 1 4 d It is closed and the inner space is the storage room 1 1 4 S.
- the wall 1 1 4 b is formed with an inlet 1 1 4 P for connecting the storage chamber 1 1 4 S to the fuel passage 1 1 2 P.
- a flange 1 1 4 e is formed in the opening of the casing body 1 1 4.
- the opening forming member 1 1 6 is attached to one end portion of the casing body 1 1 4 and includes a cylindrical side wall portion 1 1 6 a and an upper wall portion 1 1 6 b.
- the upper wall portion 1 1 6 b of the opening forming member 1 1 6 includes a flat surface portion 1 1 6 d and an inclined surface 1 1 6 e. As shown in FIG. 15, the inclined surface 1 1 6 e is formed so that the center portion is recessed substantially over a semicircle and is connected to the opening 1 1 6 f.
- the opening / closing mechanism 1 2 0 includes a moving casing 1 3 0, a spring 1 4 0 for urging the moving casing 1 3 0, and a valve opening / closing mechanism 1 5 0. Open the filler cap and push it with an oil gun to open the inlet 1 1 4 P to supply oil.
- the moving casing 1 3 0 is slidably stored in the storage chamber 1 1 4 S, and includes a fuel introduction part 1 3 1, a fuel passage part 1 3 2, and a valve opening / closing mechanism 1 5 0.
- the valve storage part 1 3 4 which comprises the part, the spring support part 1 3 5 and the guide rib 1 3 7 are provided, and these are formed integrally.
- the fuel introduction part 1 3 1 has an inlet 1 3 1 a connected to the opening 1 1 6 f of the tank opening forming member 1 1 1, and is a guide part inclined toward the inlet 1 3 1 a 1 3 1 b and a bridging portion 1 3 1 c.
- the bridging part 1 3 1 c is formed across the inlet 1 3 1 a and is a part that receives the force pushed by the fuel gun (see Fig. 15).
- the fuel passage portion 1 3 2 is connected to the inlet 1 3 1 a and includes an introduction passage 1 3 2 a bent at 90 ° and an outlet 1 3 2 b connected to the introduction passage 1 3 2 a. Yes.
- Outlet 1 3 2 b is connected to inlet 1 1 4 P according to the position of moving casing 1 3 0.
- the valve storage portion 1 3 4 includes a valve chamber 1 3 4 S that stores the valve opening / closing mechanism 1 5 0, and is connected to the atmosphere via the storage chamber 1 1 4 S through the communication hole 1 3 4 a.
- the spring support portion 1 3 5 supports one end of the spring 1 40.
- the spring 1 4 0 is stretched between the bottom wall 1 1 4 d of the casing body 1 1 4 to urge the movable casing 1 3 0 toward the opening 1 1 6 f side.
- the guide rip 1 3 7 guides the moving casing 1 3 0 by sliding on the inner wall of the casing body 1 1 4.
- FIG. 17 is an enlarged cross-sectional view of the vicinity of the valve opening / closing mechanism 150.
- the valve opening / closing mechanism 1 5 0 constitutes a part of the positive pressure valve 1 6 0 and the negative pressure valve 1 7 0 arranged in the valve chamber 1 3 4 S, the gasket GS 1 and the valve opening / closing mechanism 1 5 0.
- the valve storage part 1 3 4 is configured to adjust the pressure in the fuel tank within a predetermined range.
- the gasket GS 1 is an annular member made of rubber material, and is press-fitted and fixed to the seal holding part 1 1 4 g formed on the peripheral edge of the inlet 1 1 4 P of the casing body 1 1 4 .
- the valve opening / closing mechanism 1 5 0 and the moving casing 1 3 0 constitute a retracting mechanism that selectively moves the valve opening / closing mechanism 1 5 0 between the closing position and the oiling position in conjunction with the fuel gun. .
- the positive pressure valve 1 60 includes a positive pressure valve body 1 6 1 that opens and closes the inlet 1 1 4 P, and a first spring 1 6 2 that applies a biasing force in the closing direction to the positive pressure valve body 1 6 1. ing.
- the positive pressure valve body 1 61 is made of resin, and is formed in a cup shape by an upper wall 1 6 1 a and a side wall portion 1 6 1 b protruding from the outer periphery of the upper wall 1 6 1 a. ing.
- the upper wall 1 6 1 a of the pressure valve body 1 6 1 is formed with a seat portion 1 6 1 c that contacts and separates from the gasket GS 1, and the seat portion 1 6 1 c is separated from the gasket GS 1 Forms the first valve flow path 1 6 0? (See Fig. 18) connected to the inlet 1 1 4 P and the atmosphere.
- a through hole 1 61 1 d is formed at the center of the positive pressure valve body 1 61. This through hole 16 1 1 d forms a second valve flow path 1 70 P (see FIG. 19) connected to the injection port 1 14 4 P.
- a seating portion 1 61 1 e is formed on a lower surface of the positive pressure valve body 1 6 1 and facing the second valve flow path 1 700 P.
- the seating portion 16 1 e functions as a seating surface of the negative pressure valve 170 as will be described later.
- a spring support portion 16 1 f is formed on the back side of the positive pressure valve body 1 61, and the spring support portion 6 1 f supports one end portion of the first spring 16 2.
- the other end of the first spring 1 6 2 is supported by the inner wall of the valve storage portion 1 3 4 so that it is stretched between the spring support portion 1 6 1 f and the bottom of the valve storage portion 1 3 4. Yes.
- Negative pressure valve 1 7 0 consists of negative pressure valve body 1 7 1 made of resin, gasket GS 2, and negative pressure valve body 1 7 1 and positive pressure valve body 1 6 1 and negative pressure valve body 1 7 And a second spring 1 7 4 biasing to 1.
- the negative pressure valve body 1 7 1 includes an upper wall plate portion 1 7 1 a, a cylindrical sliding portion 1 7 1 b protruding from the inner peripheral portion of the upper wall plate portion 1 7 1 a, and a sliding portion 1 7 1 b and a spring support portion 1 7 1 c projecting from the tip, and these are integrally formed.
- Gasket GS 2 is attached to the upper wall plate 1 7 1 a of the negative pressure valve body 1 7 1, and the second valve flow path 1 by seating on the seat 1 6 1 e of the positive pressure valve body 1 6 1 7 Close 0 P.
- the second spring 1 7 4 is a string spring wound between the back surface of the positive pressure valve body 1 6 1 and the spring support portion 1 7 1 c, and is attached to the negative pressure valve body 1 7 1 in the valve closing direction. It is fast.
- pressure adjustment in the fuel tank by the positive pressure valve 160 is performed by the following operation. That is, when the pressure in the fuel tank reaches a positive pressure exceeding the first pressure value at the closing position of the opening / closing mechanism 120 shown in FIG.
- the positive pressure valve body 1 6 1 is lifted by the urging force of the 1st spring 1 6 2 and the inside of the fuel tank is connected 1 1 2, inlet 1 1 4 P, 1st valve flow path 1 6 0 P, the positive pressure valve body 1 6 1 is connected to the outside air through the gap on the outer periphery of the positive pressure valve body 1 6 1 and the communication hole 1 3 4 a of the valve storage portion 1 3 4 and so on, so that the positive pressure state in the fuel tank is eliminated. If the differential pressure applied to the positive pressure valve body 1 6 1 falls below the urging force of the first spring 1 6 2 due to communication with the outside air, the positive pressure valve body 1 6 1 is lowered by the urging force of the first spring 1 6 2 Closed. In this way, the positive pressure valve body 1 6 1 opens and closes so that the pressure in the fuel tank does not exceed the first pressure value.
- the inlet 1 1 4 P moves toward the direction in which the fuel tank communicates with the atmosphere through the second valve flow path 1 70 P and the communication hole 1 3 4 a and the negative pressure state in the fuel tank is eliminated.
- the differential pressure applied to the negative pressure valve body 1 71 falls below the urging force of the second spring 1 7 4, the negative pressure valve body 1 71 is closed.
- FIG. 20 is an explanatory view for explaining the valve separation mechanism 180.
- the valve separation mechanism 1 80 is a mechanism for retracting the valve opening / closing mechanism 1 5 0 from the gasket GS 1 as the moving casing 1 3 0 slides.
- the positive pressure valve body 1 6 1, the valve storage part 1 3 4 and the casing body 1 1 4 are formed.
- FIG. 21 is a cross-sectional view taken along the line 17—17 in FIG.
- a rod-shaped connecting portion 1 8 1 protrudes from the outer periphery of the positive pressure valve body 1 6 1, and an elongated hole 1 8 2 into which the connecting portion 1 8 1 is inserted is formed in the valve storage portion 1 3 4.
- a guide groove 1 8 3 is formed on the inner wall of the casing body 1 1 4.
- the guide groove 1 8 3 includes an inclined groove 1 8 3 a that is inclined in the radial direction, and a movable casing. Straight grooves 1 8 3 b formed along the sliding direction of 1 30.
- the connecting part 1 8 1 has the inclined groove 1 8 3 of the guide groove 1 8 3 as shown in FIG. Copy Sley Groove 1 8 3 b from a.
- the positive pressure valve body 16 1 moves in a direction away from the gasket GS 1, that is, in the axial direction of the regasket GS 1.
- valve opening and closing mechanism 1 5 0 retracts from the inlet 1 1 4 P together with the moving casing 1 3 0 to open the inlet 1 1 4 P, and the inlet from the fuel gun FG to the inlet 1 1 4 P, fuel passage 1 1 2 P In this way, if the moving casing 1 3 0 is pushed with the fuel gun FG, the valve opening / closing mechanism 1 5 0 opens the inlet 1 1 4 P, so that fuel can be supplied. (5) -2 Closing action
- the tank opening / closing device 100 provides the following operational effects.
- Valve open / close mechanism 1 50 functions as an open / close valve that opens and closes when refueling, and also functions as a pressure regulating valve that opens when the pressure difference between the internal pressure of the fuel tank and the outside air exceeds a specified value. Therefore, there is no need to provide multiple valves, and the number of parts such as springs can be reduced.
- Two-valve open / close mechanism 1 50 has tank opening forming member 1 1 1 inlet 1 1 4 Since the gasket GS is the only means for sealing P, the number of parts is reduced and the configuration is simplified Can be. Moreover, the positive pressure valve body 1 61 of the valve opening / closing mechanism 150 is uniformly pressed against the gasket GS 1 by the first spring 162, and thus has excellent sealing performance.
- valve opening / closing mechanism 1 50 is not directly pressed by the oil gun FG in order to open it, so it is designed with emphasis on sealing performance without regard to mechanical strength and durability. This will make the design easier.
- (6) -4 Insert and move the oil gun FG from the opening 1 1 6 f to refuel.
- Casing 1 30 Press the valve opening / closing mechanism 1 50 to open the inlet 1 1 4 P.
- the valve opening / closing mechanism 1 50 does not need to be pressed with the oil gun FG to open P, and it has excellent operability.
- (6)-5 Inlet 1 1 4 P is arranged in a direction almost perpendicular to the moving direction of moving casing 1 30, and introduction passage 1 3 2 a faces the inlet 1 1 4 P from the moving direction Therefore, when it is necessary to bend the routing route to the fuel tank, it can be easily realized by the fuel passage portion 1 3 2 of the moving casing 1 30.
- the valve separation mechanism 1 80 has a positive pressure valve body 1 6 1 by connecting the connecting part 1 8 1 of the positive pressure valve body 1 6 1 with the inclined groove 1 8 3 a of the guide groove 1 8 3. Since 1 is moved in the axial direction of Gasket GS 1 and then moved in the refueling gun insertion direction, positive pressure valve body 1 6 1 does not rub against Gasket GS when it moves away from Gasket GS 1 The gasket GS 1 has excellent durability.
- FIG. 24 is a sectional view showing the tank opening / closing device 200 according to the fifth embodiment.
- the tank opening / closing device 200 according to the fifth embodiment is characterized in that a valve opening / closing mechanism 220 is rotatably supported by a tank opening forming member 211. That is, the tank opening forming member 2 1 1 has a pipe shape including an upper wall 2 1 1 a and a side wall 2 1 1 b formed in a cylindrical shape on the outer peripheral portion of the upper wall 2 1 1 a.
- An inlet 2 1 2 P is formed in 2 1 1 a.
- a seal holding portion 2 1 1 c is formed at the opening peripheral edge of the inlet 2 1 2 P, and the gasket GS 3 is held.
- the valve opening / closing mechanism 2 20 includes a valve body 2 2 2, a valve support moving body 2 2 4, a spring 2 2 6, and a valve regulating body 2 2 8.
- the valve body 2 2 2 includes a pressing portion 2 2 2 a to be pressed by the fuel gun, a seal portion 2 2 2 formed on the outer periphery of the pressing portion 2 2 2 a, and an outer peripheral portion of the sealing portion 2 2 2 b. And a side wall portion 2 2 2 c extending in a cylindrical shape, and is formed in a downward cup shape.
- the valve support moving body 2 2 4 includes a side wall 2 2 4 a and a bottom wall 2 2 4 b formed at a lower portion of the side wall 2 2 4 a, and is formed in an upward cup shape.
- the bottom wall 2 2 4 b has a communication hole 2 2 4 d connected to the valve storage chamber 2 2 4 c and the fuel passage 2 1 1 P. It is.
- the spring 2 2 6 is supported by the bottom wall 2 2 4 b and urges the valve body 2 2 2 in the closing direction.
- the valve restricting body 2 2 8 is housed in the valve housing chamber 2 2 4 c, holds the valve body 2 2 2 slidably, and includes an engaging claw 2 2 8 a.
- the engagement claw 2 2 8 a prevents the valve body 2 2 2 from being pulled out by engaging with a notch 2 2 2 e formed in the side wall 2 2 2 c.
- the retracting mechanism 2 3 0 includes a rotation support portion 2 2 4 f formed on the outer wall of the bottom wall 2 2 4 b, a shaft support portion 2 3 1 formed on the inner wall of the tank opening forming member 2 1 1, and a shaft And a spring 2 3 2 supported by the branch 2 3 1.
- the valve opening / closing mechanism 2 2 0 is supported rotatably with respect to the tank opening forming member 2 1 1 via the pivot support 2 3 1 and the rotation support 2 2 4 f of the valve support moving body 2 2 4.
- the spring 2 3 2 is urged in the direction of the inlet 2 1 2.
- Fig. 2 Relationship between the force applied to the valve body 2 2 2 of the valve opening / closing mechanism 2 2 0 in the closed state of the valve opening / closing mechanism 2 2 0 in FIG. 4, that is, the force in the opening direction due to atmospheric pressure, the tank internal pressure and the spring In relation to the force in the closing direction by the spring of 2 2 6, when the former is in a negative pressure state that exceeds the latter, the valve body 2 2 2 is biased by the spring 2 2 6 as shown in Fig. 25. Move downward against the gasket, leave the gasket GS 3 and secure an air passage between them. The fuel tank communicates with the atmosphere through this air passage, and moves toward the direction where the negative pressure state in the fuel tank is eliminated. When the differential pressure applied to the valve body 2 2 2 falls below the urging force of the spring 2 2 6, the valve body 2 2 2 2 is closed.
- the tank opening / closing device 200 is configured such that the valve opening / closing mechanism 2 2 0 is pivotally supported by the retraction mechanism 2 3 0 with respect to the tank opening forming member 2 1 1 and directly pressed by the fuel gun FG.
- Re-injection port 2 ⁇ 2 P can be opened, no link mechanism is required, and the configuration is simple.
- FIG. 28 is a sectional view showing the tank opening / closing device 300 according to the sixth embodiment.
- the tank opening / closing device 300 according to the sixth embodiment is characterized in that a valve opening / closing mechanism 3 20 is assembled with a pressure regulating valve composed of a positive pressure valve and a negative pressure valve and a gasket GS 4.
- the valve opening / closing mechanism 3 2 0 includes a valve support moving body 3 2 1, a valve body 3 2 2, a spring 3 2 8, a gasket GS 4, a positive pressure valve 3 3 0 and a negative pressure valve that constitute a pressure regulating valve.
- the valve body 3 2 2 includes a pressing member 3 2 3 having a pressing portion 3 2 3 a to be pressed by the fueling gun, and a valve body 3 2 4 for holding the pressing member 3 2 3.
- FIG. 29 is a perspective view showing a state where the pressing member 3 2 3 is removed from the valve body 3 2 4.
- the pressing member 3 2 3 includes a cylindrical mounting portion 3 2 3 b formed on the outer periphery of the pressing portion 3 2 3 a.
- the mounting portion 3 2 3 b is a portion for mounting on the valve main body 3 2 4, and the locking projections 3 2 3 c are formed at four locations on the inner wall thereof.
- Four L-shaped mounting grooves 3 2 4 a are formed on the outer periphery of the upper portion of the valve body 3 2 4.
- FIG. 30 is an exploded sectional view of the tank opening / closing device 30.
- the valve body 3 2 4 includes a valve chamber forming body 3 2 5 forming the valve chamber 3 2 5 S, and a spring support portion 3 2 6 formed in a cylindrical shape on the outer periphery of the valve chamber forming body 3 2 5. I have. Valve chamber forming body 3 2 5 The positive pressure valve 3 3 0 and the negative pressure valve 3 4 0 are accommodated in the valve chamber 3 2 5 S.
- the spring support portion 3 2 6 supports a spring 3 2 8 between the bottom surface of the valve support moving body 3 2 1.
- the gasket GS 4 is held by being sandwiched between the spring support portion 3 2 6 and the pressing member 3 2 3. That is, the gasket GS 4 has a U-shaped cross section, and is attached to the upper part of the spring support part 3 2 6 and pressed by the lower part of the attachment part 3 2 3 of the pressing member 3 2 3. Is held in.
- Positive pressure valve 3 3 0 and the negative pressure valve 3 4 0 are housed in the valve chamber 3 2 5 S of the valve chamber forming body 3 2 5, and the passage in the valve chamber 3 2 5 S between the outside air and the fuel passage The internal pressure of the tank is adjusted within the specified range by cutting off the communication.
- Positive pressure valve 3 3 0 is valve chamber 3 2 5 S upper chamber 3
- the negative pressure valve 3 4 0 is arranged in the lower chamber 3 2 5 S b.
- the first seating portion 3 2 5 a is formed on the inner circumferential portion between 3 2 5 S a and the lower chamber 3 2 5 S b and having a diameter reduced from the inside of the valve chamber forming body 3 2 5.
- a valve flow path 3 2 25 b is formed facing the first seat portion 3 25 a. This valve flow path 3 2 5 b communicates with the communication hole 3 2 5 d formed in the bottom 3 2 5 c of the valve chamber forming body 3 2 5, and further from the communication hole 3 2 5 d to the ventilation hole 3 2 1 It is connected to the fuel passage via a.
- the positive pressure valve 3 3 0 is supported by the rubber positive pressure valve body 3 3 1 that opens and closes the valve flow path 3 2 5 b, the valve holding member 3 3 2, and the lower surface of the pressing member 3 2 3 and the valve And a first spring 3 3 3 for applying a biasing force in the closing direction to the positive pressure valve body 3 3 1 via a holding member 3 3 2.
- a through hole 3 3 0 a is formed in the central part of the positive pressure valve body 3 3 1 and the central part of the valve holding member 3 3 2, and the outside air passes through the through hole 3 3 0 a and the negative pressure valve 3 4 It will be led to zero.
- the negative pressure valve 3 4 0 includes a negative pressure valve body 3 4 1 made of resin and a negative pressure valve body 3 4 1 urging the negative pressure valve body 3 4 1.
- valve support rod 3 1 a protrudes upward.
- the valve support rod 3 4 1 a penetrates the positive pressure valve body 3 3 1 and the through hole 3 3 0 a of the valve holding member 3 3 2, and at its upper end, the valve holding member 3
- the second spring 3 4 2 is supported between 3 2.
- the pressure adjustment in the fuel tank by the positive pressure valve 3 3 0 is performed by the following operation.
- the positive pressure valve body 3 3 1 and the valve holding member 3 3 2 rise as a result of piled on the urging force of the first spring 3 3 3, and the inside of the fuel tank Through the valve passage 3 2 5 b of the valve chamber 3 2 5 S, it communicates with the outside air and goes in the direction of eliminating the positive pressure state in the fuel tank.
- the negative pressure valve body 3 4 1 is piled on the urging force of the second spring 3 4 2 and moves downward, and the negative pressure valve body 3 4 1 Separates from the second seat 3 3 1 a of the positive pressure valve body 3 3 1.
- the positive pressure valve body 3 3 1 is seated on the first seating portion 3 2 5 a, and in order to maintain the state, between the negative pressure valve body 3 4 1 and the positive pressure valve body 3 3 1 A passage is formed in As a result, the fuel tank communicates with the atmosphere through the vent hole 3 2 3 d of the pressing member 3 2 3, the through hole 3 3 0 a of the valve holding member 3 3 2, etc., and the negative pressure state in the fuel tank is canceled. Head in the direction.
- the spring force of the spring 3 2 8 is set to be larger than the spring force of the first spring 3 3 3 that opens the positive pressure valve 3 3 0, and the valve opening pressure is increased to back up the fuel tank. Can be increased.
- FIG. 31 is a cross-sectional view showing a tank opening / closing device according to a seventh embodiment.
- the tank opening / closing device of this embodiment is characterized by the configuration of a retracting mechanism housed in the tank opening forming member.
- the tank opening / closing device 400 is disposed above the inlet 4 11 P of the tank opening forming member 4 11 and can be applied with the same structure as the fifth or sixth embodiment.
- a valve opening / closing mechanism 4 30 having 0 V and an opening / closing starting mechanism 4 20 constituting a part of a retracting mechanism for opening / closing the valve opening / closing mechanism 4 30 are provided.
- Opening / closing start mechanism 4 2 0 includes actuating member 4 2 2, shaft support 4 2 5 provided at one end of actuating member 4 2 2, and spring for biasing actuating member 4 2 2 in the closing direction (not shown) ).
- the shaft support 4 2 5 is connected to the support 4 1 2 of the tank opening forming member 4 1 1
- the material 4 2 2 is rotatably supported.
- FIG. 3 2 is a perspective view showing the actuating member 4 2 2, and FIG. 3 3 is a cross-sectional view taken along line 3 3-3 3 of FIG.
- the actuating member 4 2 2 includes a plate-like actuating member main body 4 2 2 a having an arc at one end, a guide recess 4 2 2 b formed on the upper surface of the actuating member main body 4 2 2 a, and an actuating member main body 4. 2 2 a and a pressing part 4 2 2 c projecting from the lower part.
- the guide recess 4 2 2 b is a curved surface that is pressed by the oil gun FG and guides the oil gun FG in the direction of the arrow d 3 2 (Fig. 3 2), as shown in Fig. 3 3.
- the curvature r 1 is formed to be larger than the radius r 2 of the fuel gun FG so that the fuel gun FG can be moved to a position where it can be smoothly pressed.
- the pressing part 4 2 2 c is a protrusion for pressing the pressed part 4 3 1 (see Fig. 3 1) of the valve opening / closing mechanism 4 3 0, and its lower end is the sliding resistance against the pressed part 4 3 1 It has a curved surface to reduce
- the actuating member 4 2 2 uses a softer resin material than the pressed portion 4 31 1 in order to prevent the pressed portion 4 3 1 from being damaged and to avoid increasing the frictional resistance.
- the actuating member 4 2 2 can be made of nylon, and the pressed part 4 3 1 can be made of polyacetal.
- the shaft support 4 2 5 protrudes from the support base 4 2 5 a and the support base 4 2 5 a extending from the other end of the actuating member body 4 2 2 a to both sides in the axial direction. Shaft 4 2 5 b.
- the force in the insertion direction of the fuel gun FG is not directly applied to the valve opening / closing mechanism 4 3 0 but is received via the operating member 4 2 2 of the opening / closing activation mechanism 4 2 0.
- the valve opening / closing mechanism 4 3 0 possessed does not receive a large offset force, and can maintain high sealing performance.
- the opening / closing activation mechanism 4 20 has a simple configuration by omitting the shirter mechanism and directly operating the operating member 4 2 2 with the fuel gun FG, as in the second embodiment.
- the opening / closing start mechanism 4 2 0 is configured such that the guide recess 4 2 2 b of the operating member 4 2 2 slides the tip of the fuel gun FG, and the pressing portion 4 2 2 c of the operating member 4 2 2 is the valve opening / closing mechanism. Since the insertion force of the fuel gun FG is transmitted to the valve opening / closing mechanism 4 3 0 while sliding against the pressed part 4 3 1 of the 4 3 0, the valve opening / closing mechanism 4 3 0 can be smoothly opened and closed.
- the actuating member 4 2 2 protrudes from both ends of the actuating member main body 4 2 2 a downward so that the support base 4 2 5 a and the pressing part 4 2 2 c are U-shaped, that is, the support base
- the actuating member 4 2 2 of the opening / closing activation mechanism 4 2 0 may not be configured to be biased in the closing direction by a spring so that rattling due to vibration of the vehicle can be prevented. You may cope with the fitting size.
- the opening / closing mechanism provided with the pressure regulating valve is used as the means for opening and closing the inlet, but the present invention is not limited to this, and a flap valve without a valve body may be used.
- the present invention is not limited to the above-described embodiments, and can be implemented in various modes without departing from the gist thereof. For example, the following modifications are possible.
- the opening / closing operation is performed by pressing with a fuel gun.
- the present invention is not limited to this, and the gasket may be attached to the valve body. It may be configured and arranged so as to be sealed between the peripheral edge portions.
- the present invention is applicable to a tank opening / closing device for refueling a fuel tank of an automobile.
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Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12/309,690 US9234602B2 (en) | 2006-07-28 | 2007-07-30 | Tank opening-closing device |
| JP2008526854A JP5040916B2 (ja) | 2006-07-28 | 2007-07-30 | タンク用開閉装置 |
| EP07791984.3A EP2048017B1 (en) | 2006-07-28 | 2007-07-30 | Opening/closing device for tank |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006206252 | 2006-07-28 | ||
| JP2006-206252 | 2006-07-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2008013325A1 true WO2008013325A1 (en) | 2008-01-31 |
Family
ID=38981627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2007/065311 Ceased WO2008013325A1 (en) | 2006-07-28 | 2007-07-30 | Opening/closing device for tank |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US9234602B2 (ja) |
| EP (1) | EP2048017B1 (ja) |
| JP (1) | JP5040916B2 (ja) |
| WO (1) | WO2008013325A1 (ja) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008055996A (ja) * | 2006-08-30 | 2008-03-13 | Toyoda Gosei Co Ltd | タンク用開閉装置 |
| WO2009069632A1 (ja) * | 2007-11-29 | 2009-06-04 | Toyota Jidosha Kabushiki Kaisha | 燃料タンクの給油部構造 |
| US8191588B2 (en) | 2008-11-28 | 2012-06-05 | Toyoda Gosei Co., Ltd. | Fuel tank opening-closing device |
| JP2013538149A (ja) * | 2010-08-12 | 2013-10-10 | ゲルデス ゲーエムベーハー | キャップレスのフィラーネック |
| US8893754B2 (en) | 2008-01-24 | 2014-11-25 | Toyoda Gosei Co., Ltd. | Tank opening-closing device |
| JP2016520467A (ja) * | 2013-04-10 | 2016-07-14 | イリノイ トゥール ワークス インコーポレイティド | 漏洩防止燃料注入組立体 |
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| WO2010115091A1 (en) * | 2009-04-02 | 2010-10-07 | A.Raymond Et Cie | Access port cover |
| EP2443040A4 (en) * | 2009-06-19 | 2015-11-04 | Piramal Critical Care Inc | RECEIVER WITH VALVES |
| DE102012018859B4 (de) * | 2011-09-27 | 2019-02-21 | Toyoda Gosei Co., Ltd. | Öffnungs- und Schließvorrichtung für einen Kraftstofftank |
| US10000117B2 (en) | 2012-02-17 | 2018-06-19 | Stant Usa Corp. | Filler neck closure assembly |
| JP5907028B2 (ja) * | 2012-09-28 | 2016-04-20 | 豊田合成株式会社 | 燃料タンクの開閉装置 |
| JP6184842B2 (ja) * | 2013-11-15 | 2017-08-23 | 八千代工業株式会社 | 給油口開閉構造 |
| KR101510051B1 (ko) * | 2014-04-16 | 2015-04-07 | 현대자동차주식회사 | 차량의 혼유 방지 시스템 |
| DE202015105342U1 (de) * | 2015-10-08 | 2015-11-16 | Gerdes Gmbh | Stutzenabschluss |
| JP6426660B2 (ja) * | 2016-06-21 | 2018-11-21 | 本田技研工業株式会社 | 燃料供給管の給油部構造 |
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| WO2002026515A1 (en) * | 2000-09-27 | 2002-04-04 | Toyoda Gosei Co., Ltd. | Oil feeder of fuel tank |
| JP2005263211A (ja) * | 2004-03-19 | 2005-09-29 | Eaton Corp | 燃料タンク給油管のキャップレスシール方法およびシール構造 |
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| US6691750B1 (en) * | 2002-11-04 | 2004-02-17 | Stant Manufacturing Inc. | Floating nozzle collar for capless filler neck |
| US6923224B1 (en) * | 2004-01-15 | 2005-08-02 | Stant Manufacturing Inc. | Closure and vent system for capless filler neck |
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- 2007-07-30 US US12/309,690 patent/US9234602B2/en not_active Expired - Fee Related
- 2007-07-30 EP EP07791984.3A patent/EP2048017B1/en not_active Not-in-force
- 2007-07-30 JP JP2008526854A patent/JP5040916B2/ja not_active Expired - Fee Related
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| WO2002026515A1 (en) * | 2000-09-27 | 2002-04-04 | Toyoda Gosei Co., Ltd. | Oil feeder of fuel tank |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008055996A (ja) * | 2006-08-30 | 2008-03-13 | Toyoda Gosei Co Ltd | タンク用開閉装置 |
| WO2009069632A1 (ja) * | 2007-11-29 | 2009-06-04 | Toyota Jidosha Kabushiki Kaisha | 燃料タンクの給油部構造 |
| US8220506B2 (en) | 2007-11-29 | 2012-07-17 | Toyota Jidosha Kabushiki Kaisha | Structure for fuel filling section of fuel tank |
| US8893754B2 (en) | 2008-01-24 | 2014-11-25 | Toyoda Gosei Co., Ltd. | Tank opening-closing device |
| US8191588B2 (en) | 2008-11-28 | 2012-06-05 | Toyoda Gosei Co., Ltd. | Fuel tank opening-closing device |
| JP2013538149A (ja) * | 2010-08-12 | 2013-10-10 | ゲルデス ゲーエムベーハー | キャップレスのフィラーネック |
| US8991629B2 (en) | 2010-08-12 | 2015-03-31 | Gerdes Gmbh | Capless filler neck |
| JP2016520467A (ja) * | 2013-04-10 | 2016-07-14 | イリノイ トゥール ワークス インコーポレイティド | 漏洩防止燃料注入組立体 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2048017B1 (en) | 2014-04-23 |
| US9234602B2 (en) | 2016-01-12 |
| JP5040916B2 (ja) | 2012-10-03 |
| EP2048017A4 (en) | 2013-08-07 |
| US20090188582A1 (en) | 2009-07-30 |
| JPWO2008013325A1 (ja) | 2009-12-17 |
| EP2048017A1 (en) | 2009-04-15 |
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