JPH0626003Y2 - Current collector - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is an improvement of the current collecting boat device of the prior application Sho 63-30245 and the application 63-155272 for which priority was claimed this time. Regarding

[Conventional technology]

 A conventional current collector device is shown in FIGS. 11 to 14.

FIG. 11 is a plan view of a boat showing an example of a conventional one, FIG. 12 is a side sectional view thereof, FIG. 13 is a lateral sectional view taken along the line A-A of FIG. 11, and FIG. It is a downward displacement amount characteristic diagram of
11 to 14, 1 is a small piece of the sliding plate, 2 is a flexible sheet having arc resistance, 3 is a frame having rigidity,
4 is a spring for supporting the small piece 1 of the sliding plate, 5 is an electric line, 6 is a connecting arm, 7 is an auxiliary sliding plate, and a current collecting boat has a large number of springs 4 such as bolts on the upper surface of the frame in the longitudinal direction of the boat body. And they are covered with the flexible sheet 2. Then, the sliding plate piece 1 is a flexible sheet 2 in the longitudinal direction of the boat.
Are fixed in line at the top of the.

In the current collecting boat having such a structure, the current collecting boat is attached to the uppermost part of the frame of the pantograph, and the train 1 travels by collecting the current while the small strip 1 slides on the train line 5.

Therefore, in order for the current collection to be performed favorably during traveling, it is necessary that the contact strip 5 always keeps contact with the trolley wire 5 in order to keep good contact.

By the way, it is generally called disconnection that the contact strip and the trolley wire separate from each other due to vibration during traveling.However, if disconnection occurs during traveling of current collection, an arc is generated between the contact strip and the trolley wire, and the contact strip Wear increases and the life of the contact strip becomes shorter.

It is an important problem in electric trains to reduce the ratio of such derailment, that is, the demarcation ratio.

For example, when a train runs at high speed, various vibrational forces or vibration displacements are applied from the trolley wire to the contact plate that slides in contact with the trolley wire. In order to keep contact with the trolley wire, it is effective to make the mass of the contact strip as small as possible and to properly select the spring constant and stroke of the spring system that supports the contact strip.

Therefore, in order to improve the followability to this train line,
As in the conventional products shown in FIGS. 11 to 14, the scraping plate is divided into a large number of small scraping plates 1, and the mass of each scraping plate is minimized, and each of these small scraping plates 1 is The springs 4 provided individually are provided independently.

In the current collecting boat constructed in this way, when in contact with the trolley wire, the system that moves in response to vibrations received from the trolley wire individually supports the individual small strips 1 and the individual support pieces. Since only the spring 4 is used, very good tracking characteristics can be obtained. Further, since the train line has a zigzag deviation in the left-right direction, a plurality of scraper plate pieces are arranged in the longitudinal direction of the boat in accordance with the left-right deviation amount.

[Problems to be solved by the device]

However, the current collector boat having such a multi-divided strip plate piece 1 has the following problems because each strip plate piece 1 is supported by one spring 4.

That is, since each strip 1 is supported by one spring 4, each displacement of the strip 1 is small just above the spring 4 when the same force is applied to the upper surface of the strip, so At the end portion of the small piece 1 and the overlapping portion with the adjacent strip plate small piece 1, there is no spring 4 therebelow, so that the displacement is large.

Therefore, the downward displacement of the contact strip when the train line 5 moves left and right on the row of the contact strip small pieces 1 becomes a fine wavy shape as shown in the downward displacement characteristic diagram of the contact strip small piece in FIG. Due to the horizontal movement of the train line 5 due to the change to
The contact force between the trolley wire 5 and the strip plate piece 1 fluctuates, which is not a preferable state for disconnection.

In addition, since one spring 4 is required for each small strip 1 piece, the structure is complicated and the number of parts including accessories such as fasteners for fixing springs is large, which is troublesome for manufacturing and disassembling and assembling. Takes.

Further, as another conventional example, it is shown in FIGS.
The figure is a plan view showing an example thereof, FIG. 16 is a side sectional view of FIG. 15, FIG. 17 is a sectional view taken along the line A′-A ′ of FIG. 16,
In FIGS. 15 to 17, 1'is a support plate divided into a plurality of parts and elastically supported, 2 is a support plate having a U-shaped cross section to which individual contact plates 1'are attached, and 3'is a cross section. V-shaped boat frame, 4'is a coil spring for supporting the sliding plate 1 ', 8 is a sliding member, and 9 is a supporting rubber for supporting a joint portion of the sliding plate 1'attached to the boat frame 3'. , 10 are pin joints for rotatably supporting the ends of the elastically supported sliding plate 1'at the connecting portion between the elastically supported sliding plate 1'and the fixed sliding plate 13 attached to the boat frame 3 '. , 11 are lead wires for transmitting the current collected by the sliding plate 1'to the boat frame 3 ', and 12 is a contact wire.

In the current collecting boat configured as described above, the coil spring 4'supporting the sliding plate 1'is elastically deformed and bent by the pushing force of the pantograph while traveling, and the sliding plate 1'and the trolley wire 12 are bent.
Keeps in touch. At this time, the collected current is transmitted to the boat frame 3'through the lead wire 11. Since the contact plate 1'is elastically supported, it does not follow a good separation even if the height of the trolley wire 12 fluctuates during traveling and does not cause a disconnection. Also, the trolley wire 12 moves left and right on the contact strip 1'due to the zigzag deviation of the overhead wire, but the support rubber 9 is for the trolley wire 12 to smoothly move at the joint between the contact strips 1 '. The pin joint 10 is for allowing the trolley wire 12 to smoothly shift from the elastically supported sliding plate 1'to the fixed sliding plate 13.

However, even in the pantograph constructed as described above, the current collecting boat uses the coil spring 4 ', the support rubber 9 and the like to elastically support the sliding plate 1'to provide good followability. As for the structure of the coil spring 4 ', there are many components such as the fixing metal fittings of the coil spring 4', the supporting rubber 9 of the sliding plate joint, the supporting rubber mounting base, the lead wire 11, the lead wire fastening bolts, the pin joints 10 at both ends of the elastic supporting sliding plate , Complicated structure, assembly,
There was a drawback that disassembling was very time-consuming and costly.

The present invention was devised in view of the above-mentioned points, and its purpose is to further improve the collector boat of the pantograph of Japanese Patent Application No. 63-155272, which has good followability and a small number of parts. The present invention provides a current collecting boat device having a simple structure.

[Means for Solving the Problems]

That is, the means for achieving the object is as follows, and is described below for each claim.

(1) In claim (1), a large number of divided contact strips are collectively fixed to a flexible sheet having arc resistance,
Between the flexible sheet and the frame of the boat, one or a plurality of elastic bag-shaped bodies filled with gas such as air are arranged over the divided row of strips, The side surface of the boat is covered with the end of the flexible sheet in a direction perpendicular to the longitudinal direction of the body, and the flexible sheet is fastened to the frame with fastening members.

(2) In claim (2) and claim (5), on the upper surface of the boat,
A plurality of friction plates are arranged in the longitudinal direction of the boat body, and each of the plurality of friction plates is attached to a support plate having a U-shaped cross section and substantially the same length as the friction plate. However, between the contact plate and the support plate, having the conductivity and elasticity, communicated over the entire length of the plurality of contact plate rows and the fixed contact plate portion fixed to the boat frame located on the outer side of both ends thereof. Holding a base plate made of a thin metal plate, and arranging both side surfaces of the support plate on both side surfaces of an upward facing U-shaped boat frame through sliding members, and between the support plate and the boat frame. In addition, a sponge rubber containing bubbles and having elasticity is arranged to elastically support the contact plate.

(3) In claim (3), the shape of the sponge rubber is
A plurality of holes can be made to penetrate in the lateral direction of the hull, or something with a shape that can obtain a space inside can be sandwiched in a multi-tiered sandwich in the lateral direction of the hull,
Alternatively, instead of the sponge rubber, a bag-like body having elasticity filled with gas inside is formed.

(4) In claim (4), a bag-like member filled with a cushioning member or gas having a larger elastic coefficient than that of the intermediate portion at the connecting portion with the fixed sliding plates provided at both longitudinal ends of the row of sliding plates. The body is arranged.

Next, these actions will be described.

[Action]

In claim (1), the current-collecting boat is one or a plurality of elastic bags filled with a gas such as air to have a length substantially equal to the length of the row of strips aligned in the longitudinal direction of the boat. Since the strip plate pieces are supported by arranging the strips, the spring constant is substantially constant over the entire length at any position of the strip plate pieces.

Therefore, no matter where the train line is on the strip,
The downward displacement of the small contact strip is almost constant. Therefore, there is no change in the contact force due to the lateral movement of the trolley line, and good tracking performance can be secured. In addition, since the bag-like body filled with gas has a nonlinear spring characteristic and a damping effect,
The impact force is attenuated, and the small pieces of the friction plate do not resonate,
From this point as well, there is an effect that good followability can be obtained. Furthermore, since the plurality of small slabs are supported by one or a plurality of bag-shaped bodies extending over the entire length of these rows, the number of parts is greatly reduced, and it is very easy to manufacture or disassemble and assemble. It has a simple structure.

Next, in claims (2) to (5), in the central portion that is in constant contact with the trolley wire, the trolley wire is supported by supporting the plurality of divided friction plates with sponge rubber having appropriate flexibility. Maintains good contact and followability between the contact strips, and at the connecting parts of the fixed contact strips at both ends of the contact strip row, use a cushioning member with a large elastic coefficient to reduce the deflection of the cushioning member. The trolley wire is made to move smoothly by minimizing the step when the trolley wire moves from the elastic supporting and sliding plate portions to the fixed sliding plate portion. Further, the current collected from the contact plate portion is transmitted to the boat frame by a conductive and elastic thin metal plate arranged so as to connect the elastically supported contact plate and the fixed contact plate.

As described above, the current collecting boat of the present invention uses a sponge rubber and a floor plate made of a conductive and elastic thin metal plate, so that a coil spring in a conventional current collecting boat, a supporting rubber for a seam portion of a sliding plate, Pin joints, lead wires, etc. at both ends can be eliminated, the number of parts is greatly reduced, manufacturing and disassembly and assembly are very easy, and good followability can be obtained.

Hereinafter, an embodiment of the current collecting boat device of the present invention will be described in detail with reference to the drawings with reference to the drawings.

〔Example〕

(1) In claim (1), FIGS. 1 to 5 show an embodiment of the present invention.
The figure is a side sectional view, FIG. 2 is the lateral sectional view of FIG.
Fig. 4 is a perspective view of a plurality of elastic bag-like bodies filled with gas such as air inside, and Fig. 4 is a downward displacement characteristic diagram of a small strip when a load is applied by an electric line. ,
In the figure, those having the same reference numerals as those in FIGS. 11 and 12 have the same configuration and function.

In FIGS. 1 to 3, 14 is a plurality of elastic bag-like members which are filled with gas and which support the sliding plate pieces 1, and the bag-like members 14 are individually stacked.
Or they are glued together and made into one body, in the longitudinal direction of the hull,
It is fitted in the frame 3 over the entire length of the plurality of small sliding plate pieces 1. The laminated product of the bag-like body 14 does not meet the purpose of the gist of the present invention as it is a rubber-like product having ordinary elasticity, but has softer elasticity.

On the other hand, the small slab 1 is arranged in the longitudinal direction of the hull of the flexible sheet 2 and is attached by bolts or rivets.

Then, on the frame in which the bag-shaped body 14 is fitted, the scraping piece 1
The flexible sheet 2 to which the attached sheet is attached is placed, the side surface of the boat body including the frame 3 is covered by the bent portion of the end portion of the flexible sheet 2 in the lateral direction, and the flexible sheet 2 is flexed with a rivet member. The property sheet 2 is fastened to the frame 3. As for the current collecting structure from the strip plate small pieces 1, for example, a continuous thin copper plate is laid under the strip plate small piece row, and the longitudinal ends are attached to the frame 3. Further, although the temperature becomes high in the sliding contact portion between the contact strips 1 and the train line 5, the temperature in the bag-shaped body portion is equal to or lower than the temperature that causes deterioration of the characteristics of the bag-shaped body due to air cooling during traveling. .

Thus, in the pantograph current collecting boat configured as described above, as shown in FIG. 4, when the train line 5 moves left and right on the hull due to the zigzag deviation, even in the central part of the sliding plate piece 1, Further, even at the overlapping portions of both end portions of the strip plate piece 1 with the adjacent strip plate pieces, since the lower surface thereof is always supported by constituting a continuous structure with a large number of bag bodies, the bag body is formed. The downward displacement of the contact strip 1 due to the deflection of 14 is kept almost constant,
Since the downward displacement does not occur unlike the conventional wavy shape as shown in the figure, good tracking performance can be exhibited.

Further, due to the nonlinear spring characteristic of the bag-shaped body 14 and the vibration absorbing effect, the vibration of the small contact strip 1 is suppressed, and this also has a great effect on the disconnection. Further, in the structure, one spring 4 is required for each small strip 1 as in the conventional case, but a continuous bag-shaped body 14 is provided.
Since it is simplified and the number of parts is greatly reduced, it is a great advantage from the viewpoint of manufacturing and disassembling.

Further, by using a large number of bag-shaped bodies 14, it is easy to reduce the influence of the puncture of the bag-shaped body 14 in use and to adjust the total spring constant of the bag-shaped body laminate. It also has advantages.

FIG. 5 shows another embodiment of the present invention.
Reference numeral 15 is an elastic bag-shaped body having gas filled therein, and has a shape similar to the inner surface shape of the frame 3 of the boat body. An appropriate number of partitions 15a are provided inside the bag-shaped body 15 so that the influence of the flatness of individual chambers of the bag-shaped body 15 is small. A plurality of this product are arranged in the longitudinal direction of the boat frame and supported over the entire length of the row of small scraper plates, and the function is the same as that of the above embodiment.

Next, in claims (2) to (5), FIGS. 6 (a) and (b) are side sectional views showing another embodiment of the present invention, and FIG. 6 (b) is a perspective view of the sponge rubber storage portion. FIGS. 7 and 8 are sectional views taken along the line ii of FIGS. 6 (a) and 6 (b), and FIGS. 8 to 10 show various examples of sponge rubber used for the one shown in FIG. It is a configuration diagram showing
Those having the same reference numerals as those in FIGS. 15 to 17 have the same configuration and function.

In FIGS. 6 and 7, reference numeral 16 denotes a sponge rubber having bubbles for elastically supporting a plurality of divided friction plates 1 ', and 17 denotes fixed friction plates 13 at both ends of a plurality of elastically supported compression plate rows. A cushioning member 18 having a larger elastic coefficient than that of the sponge rubber (16) arranged at the connecting portion, and a contacting member 18 which connects the elastically supported sliding plate 1'and the fixed sliding plate 13 attached to the boat frame 3 '. The base plate 1 ', the support plate 2', a fixed sliding plate 13, and a metal thin plate having conductivity and elasticity held between the hull frame 3 '.

Also, the sponge rubber described above is shown in FIGS.
FIG. 8 shows various shapes instead of (16), FIG. 8 shows a sponge rubber (19) with a through hole 16a opened to change the elastic coefficient, and FIG. 9 shows a plurality of sponge rubbers 20. A case is shown in which the spacer 16b is sandwiched between and bonded in a sandwich shape, and a void is provided between them to change the elastic coefficient. Further, FIG. 10 shows a case where a bag-shaped body 21 made of an elastic body such as rubber having gas filled therein is used instead of the sponge rubber.

In any of the cases shown in FIGS. 8 to 10, the function and structure are the same as those in the above embodiment.

Next, the operation of the current collecting boat made of these materials will be described.

In the pantograph configured as described above, the elastically supported contact plate 1'which is in contact with the trolley wire 12 by being applied with a pushing-up force is appropriately bent (displaced downward) due to the elasticity of the sponge rubber (16). The contact with the trolley wire 12 is followed to follow the vertical displacement of the trolley wire 12 during traveling to maintain good contact. When the trolley wire 12 moves to the left or right due to the zigzag deviation of the trolley wire 12, the sponge rubber (16) is continuously arranged on the entire lower surface of the rubbing board 1'at the joint between the rubbing boards 1 '. In addition, since the contact strips 1'are connected to each other by the continuous base plate 18 having elasticity, the trolley wire 12 smoothly moves at the seam portion. Further, when the trolley wire 12 moves to the joint between the sliding plate 1'and the fixed sliding plate 13,
Since the cushioning member 17 at the end has a large elastic coefficient, the vertical deflection of the sliding plate 1'in this portion is small, and the base plate 18 is continuously arranged also in this portion, so that the fixed sliding plate 13 and There is almost no step on the upper surface of the contact plate 1 ', and the trolley wire 12 can smoothly transition the seam.

All the electric current collected during this time is transmitted to the boat frame 3'through the floor plate 18, and is transmitted to the frame set by the lead 11 wire connecting the boat frame 3'and the pantograph frame pipe (not shown).

Although the operation of the sponge rubber (16) has been described in this embodiment, the sponge rubber (19) and the ninth sponge rubber of FIG.
The same effect is obtained for the sponge rubber (20) shown in the figure and the bag-like body 21 shown in FIG.

[Effect of device]

As described above, according to the present invention, in claim (1), in a plurality of divided-plate type current collecting boats, an elastic bag-shaped body having the inside of the small strip 1 is filled with gas.
By using 14 or 15 to support the entire row of the strip plate pieces over the entire length, the downward displacement of the strip plate pieces 1 when a load is applied from the train line 5 can be made uniform over the entire length. Further, the bag-shaped body 14 or 12 is characterized by exhibiting excellent followability to the trolley wire 5 by the non-linear spring effect and vibration absorbing effect, which greatly contributes to the improvement of the followability of the pantograph. Further, it has a simple structure with a small number of parts, and has an economic advantage that the production cost is low in the manufacture and disassembly of the current collector.

Further, in claims (2) to (5), compared with the conventional pantograph, the conventional elastically supported sliding plate 1'and the boat frame 3 are provided by the floor plate 18 laid over substantially the entire length of the boat frame 3 '. The lead wire 11 between ′ is unnecessary, and since the sponge rubbers 16, 19, 20 or the bag-shaped body 21 and the elasticity of the floor plate 18 communicating with each other elastically support the plurality of divided friction plates 1 ′. The supporting rubber 9 and the pin joints 10 for connecting the conventional sliding plates 1'are not required, and the elastic modulus of the supporting elasticity of the sliding plates 1'can be selected in a wide range without any size restriction.

Further, since the sponge rubbers 16, 19, 20 and the bag-shaped body 21 have a vibration damping action, they have a good effect on the followability to the trolley wire 12.

Therefore, since the current collector device of the present invention has a simple structure with fewer parts than the conventional device, it is easy to assemble and disassemble in manufacturing, and has a high practical advantage.

[Brief description of drawings]

1 to 4 show one embodiment of the present invention shown in claim (1), FIG. 5 shows another embodiment of the present invention, and FIG. 1 is a side sectional view and FIG. 1 is a cross-sectional view, FIG. 3 is a perspective view of a bag-shaped body, FIG. 4 is a downward displacement characteristic diagram of a small piece of a sliding plate when a load is applied by a power line, and FIG. 5 is another embodiment. FIG. 6 is a perspective view of a bag-shaped body of FIG.
6 (a) and 6 (c) are side sectional views showing another embodiment of the present invention, FIG. 6 (b) is a perspective view of the sponge rubber storage portion, and FIG. FIGS. 8 (a) and 8 (c) are sectional views taken along the line ii, and FIG. 8 is a perspective view showing another embodiment of the sponge rubber.
FIG. 9 is a front view showing the next embodiment of the sponge rubber, and FIG.
The figure is a perspective view showing another embodiment in place of the sponge rubber. Further, FIGS. 11 to 17 show conventional examples of pantographs, and
Fig. 11 is its plan view, Fig. 12 is a front view, Fig. 13 is a sectional view taken along the line A-A in Fig. 11, Fig. 14 is a characteristic diagram of downward displacement of a small piece of a sliding plate, and Fig. 15 is conventional. FIG. 16 is a plan view showing another example, FIG. 16 is a front view, and FIG. 17 is a sectional view taken along the line A′-A ′ in FIG. DESCRIPTION OF SYMBOLS 1 ... Small scrap plate, 1 '... scrap plate, 2 ... flexible sheet, 2' ... support plate, 3 ... frame, 3 '... hull frame, 4 ... spring, 4' ... … Coil spring, 5 …… train wire, 6 …… connecting arm, 7 …… auxiliary sliding plate, 8 …… sliding material, 9 …… support rubber, 10 …… pin joint, 11 …… lead wire, 12… … Trolley wire, 13 …… Fixed scraper, 14,15,21 ……
Bag-shaped body, 16,19,20 …… Sponge rubber, 17 …… Cushioning member,
18 ... Floorboard.

Claims (5)

[Scope of utility model registration request] 1. A current collector comprising a plurality of small scraper plates (1), a frame (3), one or more bag-like bodies (14, 15), and a flexible sheet (2). The boat device, wherein the frame (3) has a U-shaped cross-section with an opening at the top and has rigidity, and one or a plurality of bag-like bodies (14, 15) have air inside. It has elasticity by being filled with gas such as, and is fitted and fixed to the U-shaped portion of the frame (3). The flexible sheet (2) is made of an arc resistant material, and the upper surface is long. A plurality of small strips (1) are fastened in a row in the direction, and are arranged on the frame (3) so as to be closely attached to the upper surface of one or more bag-like bodies (14, 15). A current collecting boat device in which one or more bag-shaped bodies (14, 15) and side surfaces of the frame (3) are covered and fastened to the bottom surface of the frame (3). 2. A plurality of friction plates (1 '), a plurality of support plates (2'), a boat frame (3 '), and a sliding member (8).
A fixed friction plate (13), a sponge rubber (16) or an elastic bag-like body (21) filled with gas, and a cushioning member (1
7) and a floor plate (18), wherein each support plate (2 ') has substantially the same length as the sliding plate (1') and has a U-shaped cross section with an opening at the bottom. And the rubbing plates (1 ') are fastened to the upper surface of the hull frame (3'). Sliding members (8) are arranged on the inner surfaces of both side walls, and a support plate (2 ') is inserted between the sliding members (8'). ′), Which is fastened to the upper surfaces of both ends of the boat frame (3 ′) in the longitudinal direction, and the sponge rubber (16) contains air bubbles and has elasticity. The rubber (16) or bag-like body (21) is a support plate (2 ').
The cushioning member (17) has elasticity and is disposed between the inner surface of the hull and the boat frame (3 ') at both ends of the sponge rubber (16) or the bag-like body (21). The base plate (18) is a metallic thin plate having conductivity and elasticity, and is placed below the connecting portion between the fixed sliding plate (13) and the sliding plate (1 '). The current collecting boat device according to claim (1), wherein the current collecting boat device is sandwiched by communicating with (2 ') and between the fixed railing plate (13) and the boat body frame (3'). 3. The sponge rubber (16) has a plurality of through holes (16a) in the lateral direction of the boat frame (3 '), or a spacer (16b) capable of providing a space therein.
The current collecting boat device according to claim (2), wherein the boat is formed by sandwiching the boat frame (3 ') in a lateral direction in a sandwiched manner. 4. The cushioning member (17) has a sponge rubber having an elastic modulus.
The power collection boat device according to claim (2), which is the same as or larger than (16). 5. The current collecting boat device according to claim 2, wherein the cushioning member (17) is formed by extending both ends of the sponge rubber (16).