JPH0584162U - Engine stop actuator - Google Patents

Abstract

(57) [Summary] [Objective] To provide an engine stop actuator that realizes cost reduction. [Structure] Upper and lower cases 2 and 3 and an output slide block 6 supported by a guide body 5 provided inside both cases 2 and 3 so as to be capable of reciprocating are provided. Casing fixing hole 9 into which the casing 11 is fitted
And a cable locking hole 6b for locking the connecting pin 13 of the cable 10 is provided in the output slide block 6.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an engine stop actuator used to open and close a fuel cutoff valve provided in a fuel supply pipe of a diesel engine.

[0002]

[Prior Art]

 Conventionally, as an engine stop actuator described above, for example, there is one shown in FIG.

The engine stop actuator 51 shown in the figure includes a motor section 52 and a speed reduction section 53, and a worm is formed on an armature shaft (not shown) built in a motor case 54 of the motor section 52. This worm is meshed with a worm wheel 57 supported by a gear shaft 56 in the gear case 55 of the reduction gear unit 53, and an output bolt 58 is screwed and fixed to the upper surface of the worm wheel 57 shown in the drawing. There is.

Between the opening end 55a of the gear case 55 and the cover 59 that closes the opening end 55a, a long slide plate 60 that is reciprocally movable in the left-right direction in the drawing above the gear shaft 56 is provided. .. On the lower surface of the slide plate 60 shown in the drawing, a concave guide 61 into which the output bolt 58 on the worm wheel 57 side is slidably fitted is fixed in a state orthogonal to the slide plate 60. Is adapted to follow the rotational movement of the worm wheel 57 and reciprocate linearly.

A cable 62 penetrating a bending end portion 60b on the right side in the drawing, which also projects outside the case 55, is provided at a bending end portion 60a protruding to the outside of the case 55 provided on the left side of the slide plate 60 in the drawing. The tip connecting portion 62a is connected via a coil spring 63, and the end portion of a tubular casing (not shown) covering the cable 62 is fixed via a bracket in the vicinity of the engine stop actuator 51. ..

The cable 62 is connected to a fuel cutoff valve provided in a fuel supply pipe of a diesel engine (not shown), and the coil spring 63 causes the stroke of the slide plate 60 and the opening / closing stroke of the fuel cutoff valve. The difference between is corrected.

In this engine stop actuator 51, the slide plate 60 is linearly reciprocated to pull the cable 62 so that the cable 62 is pulled and pushed out, thereby closing and opening the fuel cutoff valve. ..

[0008]

[Problems to be solved by the device]

 However, in the above-described conventional engine stop actuator 51, since the bent end portion 60a of the slide plate 60 connected to the cable 62 and the coil spring 63 for stroke correction are exposed to the outside of the gear case 55, Since it cannot be said that water or dust may adhere to these and interfere with the transmission of the output of the engine stop actuator 51, it was necessary to cover all of them with a cover. Therefore, there is a problem that the whole becomes large and the cost becomes high, and it has been a conventional problem to solve this problem.

[0009]

[The purpose of the device]

 The present invention has been made in view of the above-mentioned conventional problems, and an object thereof is to provide an engine stop actuator that can be downsized and cost reduction can be realized.

[0010]

[Means for Solving the Problems]

 An engine stop actuator according to the present invention comprises an actuator case and an output slide block supported by a guide portion linearly provided inside the actuator case so as to be capable of reciprocating along the straight line direction. The case is provided with a casing fixing portion into which a casing of a cable with a tube-shaped casing connected to a fuel cutoff valve of a diesel engine is fitted, and the output slide block is provided with a casing protruding from an end portion of the casing. It is characterized in that a cable locking portion for locking the tip locking portion of the cable is provided, and such a structure of the engine stop actuator is a means for solving the above-mentioned conventional problems. ..

[0011]

[Function of the device]

 In the engine stop actuator according to the present invention, the output slide block supported by the guide portion reciprocates inside the actuator case, and the output slide block and the cable are connected inside the actuator case. This means that water and dust will hardly attach to the output slide block and the cable connected to it.

[0012] Therefore, unlike the conventional case, it is not necessary to cover the output portion of the engine stop actuator and the connection portion with the cable as a whole, so that the engine stop actuator itself becomes small, The cost will be reduced.

[0013]

【Example】

 The invention will be described below with reference to the drawings.

1 to 5 show an embodiment of an engine stop actuator according to the present invention.

The engine stop actuator 1 shown in the drawing accommodates motor components such as an armature and a magnet (not shown) inside the upper case 2 and the lower case 3, and also includes a worm provided on the armature shaft. It accommodates the worm wheel 4 that meshes with and outputs a rotational output.

In this case, the upper case 2 and the lower case 3 have, in addition to the parts for accommodating the motor constituent members and the worm wheel 4, an upper bulge portion 2 a and a lower bulge portion extending in the radial direction of the worm wheel 4. As shown in FIG. 2, a guide body 5 is provided on the lower projecting portion 3a of the lower case 3 along the extending direction thereof.

As shown in FIG. 4, the guide body 5 has a substantially rectangular tubular shape, and a pin groove 5c communicating with the hollow portion 5b is formed in the ceiling portion 5a along the longitudinal direction. There is. An output slide block 6 having a substantially grooved steel shape is fitted in the hollow portion 5b of the guide body 5, and an output force which is fitted so that the groove opening portion faces in the lateral direction. The slide block 6 can be smoothly reciprocated in the longitudinal direction in the hollow portion 5b.

The output slide block 6 is provided with an upward pin 6a at a portion near the left end of FIG. 1, and the upward pin 6a is configured to move along the pin groove 5c of the guide body 5. .. Further, a through hole 7a provided at the other end side of a link 7 in which one end side not shown is pivotally connected to the upper surface of the worm wheel 4 is rotatably fitted to the upward pin 6a via a collar 8. In this engine stop actuator 1, the rotation output transmitted to the worm wheel 4 is converted into a linear direction output by the link 7 and transmitted to the output slide block 6, and the slide block 6 is moved up and down. The inner and outer portions of the cases 2 and 3 surrounded by the upper and lower projections 2a and 3a are reciprocally moved along the guide body 5.

In the engine stop actuator 1, a cable locking hole 6b is provided in a portion of the output slide block 6 near the right end in FIG. The cable locking holes 6b are formed in the opposing wall portions 6c, 6c of the output slide block 6, and the cable locking holes 6b on the upper wall portion 6c side in FIG. A cable passage groove 6d is continuously formed in a direction orthogonal to the moving direction.

Further, the engine stop actuator 1 is provided with half-split holes 2b and 3b at the right end of FIG. 1 of each of the upper projecting portion 2a and the lower projecting portion 3a provided in the upper and lower cases 2 and 3, respectively. .. These half-divided holes 2b and 3b face each other to form a casing fixing hole 9. The casing fixing hole 9 has its axis aligned with the moving direction of the output slide block 6. I am doing it.

The cable 10 that transmits the linear output of the engine stop actuator 1 is covered with a tubular casing 11 and is slidable in the longitudinal direction inside the casing 10.

In this case, a cylindrical casing cap 12 is caulked and fixed to the end of the casing 11 on the actuator 1 side, and is connected to the end of the cable 10 protruding through the casing cap 12. A pin 13 is provided. The casing cap 12 has a large diameter portion 12a for caulking on the base end side (right end side in FIG. 1), and an intermediate large diameter portion 12b near the tip end (left end in FIG. 1). A portion between the large diameter portions 12a and 12b is a cap side fitting portion 12c.

The casing cap 12 is provided on the engine stop actuator 1, on the lower cases 2 and 3, and on the cap-side fitting portions between the upper and lower overhang portions 2a and 2b. 12c is sandwiched, that is, the cap side fitting portion 12c is fitted into the casing fixing hole 9 and fixed to the engine stop actuator 1. At this time, the cable 10 is connected to the connecting pin 1 thereof. By connecting the upper and lower ends of the cable 3 to the cable locking holes 6b, 6b of the output slide block 6, the output slide block 6 is connected.

The cable 10 having one end connected to the engine stop actuator 1 has the other end connected to the fuel cutoff valve 22 provided in the fuel feed pipe 21 of the diesel engine 20, as shown in a simplified manner in FIG. In this engine stop actuator 1, when the diesel engine 20 is stopped, the output slide block 6 operates so as to change from the state shown by the phantom line in FIG. When the diesel engine 20 is started, the output slide block 6 is operated from the state shown by the solid line in FIG. 1 to the state shown by the phantom line, and the fuel cutoff valve 22 is closed by pulling the cable. The fuel cutoff valve 22 is opened by pushing out 10. In this case, the other end hook 14a of the coil spring 14 having one end hooked on the upper case 2 is hooked on the upward pin 6a of the output slide block 6 as shown in FIG. By forming 7a as an elliptical hole along the longitudinal direction of the link 7, the pulling force of the coil spring 14 causes the output slide block 6 to be constantly pulled to the left in FIG. The difference between the opening / closing stroke of the valve 22 and the reciprocating stroke of the output slide block 6 is appropriately corrected.

Reference numeral 15 in FIG. 1 denotes a protective cover, which is fitted into the caulking large-diameter portion 12a of the casing cap 12 and is fitted into the cap protective portion 3c of the lower case 3 to form the casing. It is designed to prevent the cap 12 from being bent.

When assembling the engine stop actuator 1 having the above-described configuration, the cable 10 near the connecting pin 13 is passed through the cable passage groove 6d of the output slide block 6 so that the connecting pin 13 of the cable 10 is vertically moved. The ends are locked in the cable locking holes 6b, 6b of the output slide block 6 to connect the cable 10 to the output slide block 6, and then the overhanging portions 2a, 3a of the upper case 2 and the lower case 3 are connected. When the cap side fitting portion 12c of the casing cap 12 fixed to the casing 11 is sandwiched between the half-divided holes 2b and 3b respectively, and the two cases 2 and 3 are joined together, the two half-divided holes 2b and 3b are formed. The cap side fitting portion 12c is fitted into the casing fixing hole 9 to be fixed, and the end portion of the casing 11 is fixed to both cases 2 and 3. Will be done.

At this time, the output slide block 6 and the connecting pin 13 of the cable 10 connected to the output slide block 6 should be housed in the portions of the upper case 2 and the lower case 3 surrounded by the respective overhanging portions 2 a, 3 a. Therefore, there is no possibility that water or dust will adhere to the output slide block 6 or the connecting pin 13, and therefore, unlike the conventional case, a large cover for covering the entire engine stop actuator is not required.

The detailed structure of the engine stop actuator according to the present invention is not limited to the above-described embodiment, and as another structure, for example, without using the casing cap 12, the end of the casing 11 is not used. It is also possible to directly fix the parts to the casing fixing holes 9 of the upper case 2 and the lower case 3.

[0029]

[Effect of the device]

 As described above, in the engine stop actuator according to the present invention, the output slide supported by the actuator case and the guide portion linearly provided inside the actuator case so as to be reciprocally movable along the linear direction. The actuator case is provided with a casing fixing portion into which a casing of a cable with a tubular casing connected to a fuel cutoff valve of a diesel engine is fitted, and the output slide block is provided with a casing fixing portion. Since the cable locking part that locks the tip locking part of the cable protruding from the end is provided, in addition to the output slide block being supported by the guide part and reciprocating inside the actuator case, It is also possible to connect the output slide block to the cable. Since it is done inside the user case, there is almost no possibility of water or dust adhering to the output slide block and the cable connected to it, and as a result, there is no possibility of contact with the engine stop actuator or cable as in the past. Since the connecting portion does not have to be covered with a large-sized cover, the actuator itself can be downsized, and the cost reduction can be achieved, which is a very excellent effect.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional explanatory view from a side direction showing an embodiment of an engine stop actuator according to the present invention.

FIG. 2 is a partial plan view of a lower case of the engine stop actuator shown in FIG.

FIG. 3 is a cross-sectional explanatory view taken along the line AA of FIG.

FIG. 4 is an enlarged perspective explanatory view of a guide body and an output slide block of the engine stop actuator shown in FIG.

5 is an explanatory view schematically showing a state in which an output from the engine stop actuator of FIG. 1 is transmitted to a fuel cutoff valve of a diesel engine via a cable.

FIG. 6 is a partial cross-sectional explanatory view showing a conventional engine stop actuator.

[Explanation of symbols]

 1 Engine Stop Actuator 2 Upper Case (Actuator Case) 3 Lower Case (Actuator Case) 5 Guide Body (Guide Section) 6 Output Slide Block 6b Cable Locking Hole (Cable Locking Section) 9 Casing Fixing Hole (Casing Fixing Section) 10 cable 11 casing 13 connecting pin (tip locking part) 20 diesel engine 22 fuel cutoff valve

Claims (1)

[Scope of utility model registration request] 1. An actuator case, and an output slide block supported by a guide portion linearly provided inside the actuator case so as to be capable of reciprocating along the linear direction. A casing fixing portion into which a casing of a cable having a tubular casing connected to a fuel cutoff valve of an engine is fitted is provided, and a tip end locking portion of a cable protruding from an end portion of the casing is engaged with the output slide block. An engine stop actuator comprising a cable locking portion for stopping.