JPH072243Y2 - Trolley connecting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Industrial Field of the Invention The present invention relates to a trolley coupling device for coupling trolleys for carrying and carrying loads.

Conventional technology When multiple carts for transportation are connected for indexing,
Conventionally, for example, as shown in FIG. 8, a bracket in which a connecting member 32 is projectingly provided at the center of the front part of a bogie frame 31 and the connecting member 32 can be locked at the center of the rear part of the bogie frame 31 via a pin 33.
34 was projected and the trucks were connected by pins 33.

However, according to the above-mentioned conventional configuration, since the connecting member 32 and the bracket 34 are projected to the outside of the bogie frame 31, when the bogie is loaded in a predetermined space such as a truck,
Since the connecting member 32 and the bracket 34 are projected, the bogie frame 31 cannot be contacted and loaded, and an extra space is required. Also, when connecting or disconnecting the trucks, it was troublesome to insert and remove pins from the sides of the trucks.

INDUSTRIAL APPLICABILITY The present invention makes it very easy to connect and separate the bogies, and when the bogies are not connected, it does not project outward from the bogie frame, and the truck frame can be neatly loaded by contacting the bogie frame and the space can be effectively used. It is an object of the present invention to provide a trolley connecting device that can be used for automobiles.

Means for Solving the Problems In order to solve the above problems, the present invention provides a connecting member that is rotatable in a forward projecting position and has an engaging hole in the projecting part on the lower central front surface of a bogie frame. And a locking portion into which the connecting member at the projecting position can be inserted is provided on the lower central lower surface of the rear portion of the bogie frame, and the locking portion includes an engaging pin that can be fitted into an engaging hole of the connecting member, The urging means for urging the engagement pin in the fitting direction and the operation rod connected to the engagement pin and extending laterally of the carriage frame are provided.

Operation In the above configuration, when connecting the bogies to each other, when the connecting member at the projecting position is inserted into the locking portion, the engaging pin is biased by the biasing means to be fitted into the engaging hole of the coupling member, and the bogies are connected to each other. Are connected. When separating, the operating rod is operated from the side of the bogie frame to pull out the engaging pin fitted in the engaging hole of the connecting member against the urging force of the urging means and at the same time, By moving the dolly in the separating direction, the connected dolly can be easily separated. Further, when the connecting device is not used, by rotating the connecting member from the projecting position to the lower side of the bogie frame, there is nothing protruding outward from the bogie frame, and the bogie frames are brought into contact with each other such as trucks. It can be loaded and the space can be used effectively.

Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1 to 7.

In FIGS. 3 to 5, reference numeral 1 denotes a bogie frame having idle wheels 2 mounted near the four corners of the lower surface so as to be rotatable about a vertical axis, and includes front and rear frames 3A, 3B and left and right frames 4 made of angle members. And other reinforcing material.

Reference numeral 5 denotes a connecting plate (connecting member) mounted on the lower surface of the center of the front frame 3A of the bogie frame 1. As shown in FIGS. 1 and 5, a cylinder body 6 fixed to the base end of the connecting plate 5 has a front frame 3A. Is rotatably supported by a bracket 7 fixed to the lower surface of the trolley frame 1 via a support shaft 8 in the width direction of the trolley frame 1, and the connecting plate 5 is oriented in the horizontal direction so that the tip of the coupling plate 5 projects forward of the trolley frame 1. It is reciprocally rotatable between a position a and a standby position b which is positioned vertically below the bogie frame 1. Further, the lower end and both side surfaces of the connecting plate 5 are formed with an inclined surface 5a having a smaller thickness and width toward the front end side, and the protruding portion of the connecting plate 5 protruding forward of the bogie frame 1 at the protruding position opening. Has an engagement hole 9. Reference numeral 10 is a magnet attached to the front frame 3A between the brackets 7, which attracts the connecting plate 5 and holds the connecting plate 5 at the protruding position B.

Reference numeral 11 denotes a locking portion provided on the lower surface of the center of the rear frame 3B of the bogie frame 1, and the connecting plate 5 can be inserted and locked. That is, as shown in FIGS. 1 and 6, the locking portion 11 is in the shape of a box with front and rear surfaces opened, and the upper portion is partitioned by the partition plate 12 so that the connecting plate 5 at the protruding position is inserted. A support body 14 having a possible insertion hole 13 and through holes 16 and 17 formed in the partition plate 12 and the lower surface plate 15 of the support body 14 are fitted in a vertically movable manner, and the tip portion is inserted into the insertion hole 13. An engaging pin 18 which can be fitted into an engaging hole 9 of the connecting plate 5 inserted therein, and a supporting body.
The lower surface plate 15 of 14 is fitted between the lower plate 15 and the engaging pin 18, and is interposed between the washers 19 whose upward movement is restricted, so that the engaging pin 18 is fitted in the upper engaging hole 9 in the fitting direction. A coil spring 20 which is an example of an urging means for urging and a central portion of which is fitted into a long hole 21 of an engaging pin 18 which protrudes downward of a support body 14 and both ends thereof are mounted on the bogie frame 1
And a guide member 24 that is attached to the lower surface of the support 14 and that has a guide hole 23 that guides the vertical movement of the operation rod 22 and restricts the lowering limit. To be done. The rear inlet side of the insertion hole 13 is inclined to the upper surface plate 25 of the support 14 toward the rear side by an inclined surface 25a.
Is formed, the tip of the connecting plate 5 to be inserted is inserted into the insertion hole 13
I will guide you inside. In addition, an upper end portion of the engagement pin 18 is formed with an inclined surface 18a which inclines downward toward the rear side, and when the connecting plate 5 is inserted, the distal end portion of the connecting plate 5 and the inclined surface 5 are formed on the inclined surface 18a.
a is abutted and slid to push down the engaging pin 18 against the biasing force of the coil spring 20, the connecting plate 5 is inserted into the inner part of the insertion hole 13, and the engaging pin 18 is connected by the coil spring 20. 5 is fitted in the engaging hole 9. Further, the elongated hole 21 of the engaging pin 18 is formed to be long in the vertical direction, and the vertical swing of the operating rod 22 can be allowed within a predetermined range. 25 is a locking pin that is fixed by being inserted into the pin hole of the engagement pin 18 and restricts the upward movement of the washer 19;
Is a through hole formed on the lower surface of the guide member 24 to allow the lower end portion of the engaging pin 18 to descend. Guide plates 27, which are hung from the rear frame 3B and have mountain-shaped recesses 27a on the lower sides, are fixed to both sides of the locking portion 11, and the front end portions of both ends of the operating rod 22 contact the upper ends of the recesses 27a. Therefore, the seventh
As shown in the figure, by pushing down one end of the operating rod 22 by a stepping action, the operating rod 22 swings downward with the recess 27a of the other guide plate 27 as a fulcrum, and the engaging pin 18 descends. Thus, the engagement pin 18 can be easily removed from the engagement hole 9 of the connecting plate 5.

Next, the operation will be described.

When connecting the trucks, the connecting plate 5 at the standby position (b) of one of the trucks is first rotated to the projecting position (a), and the magnet (10) attracts the projecting position (a) to hold it. Then, the truck is arranged so that the connecting plate 5 faces the locking portion 11 of the other truck, and is moved forward to insert the connecting plate 5 into the insertion hole 13 of the locking portion 11. Then, the tip end of the connecting plate 5 is brought into contact with the inclined surface 18a of the engaging pin 18, and the engaging pin 18 is pushed down and fitted, and then the engaging pin 18 is inserted into the engaging hole 9 of the connecting plate 5 by the coil spring 20. When fitted, the connecting plate 5 is connected to the locking portion 11.

When the trucks are separated from each other, as shown in FIG.
Operation rod 22 from the side of the connecting part of the dolly
Push down on one end of. Then, the operating rod 22 serves as a lever with the concave portion 27a of the guide plate 27 that abuts against the other end as a fulcrum, and the engaging pin 18 is lowered against the spring force of the coil spring 20 and the connecting plate 5 engaging hole 9 is formed. Pull out from. At the same time, one of the carts is moved in the direction of separating it and the connecting plate 5 is pulled out from the insertion hole 13.

When the connecting device is not used, the cart is used by setting the connecting plate 5 downward to the standby position b. Then, since the connecting plate 5 is located below the bogie frame 1 and there is nothing protruding outside the bogie frame 1, the outer portions of the bogie frame 1 are in contact with each other when loading in a certain space such as a truck. It can be loaded with and the space can be used effectively.

As described above, according to the present invention, the engaging pin is fitted into the engaging hole of the connecting member by the urging means only by inserting the connecting member at the projecting position into the locking portion, and the carts are mounted together. Can be easily connected, and the engaging pin can be pulled out from the connecting member engaging hole and easily separated by merely operating the operating rod from the side portion of the carriage frame. Further, when the connecting device is not used, the connecting member and the locking portion are provided on the lower surface of the bogie frame, and the protruding portion of the connecting member may be protruded to the outside of the bogie frame by rotating to the lower side of the bogie frame. Instead, the trolley frame can be contacted and loaded onto a truck or the like, and the space can be effectively used.

[Brief description of drawings]

1 to 7 show an embodiment of the present invention, and FIGS. 1 and 2 are side sectional views and side views showing a coupling device, FIG. 3, FIG. 4, FIG. 5 and FIG. The drawings are respectively a plan view, a side view, a front view, and a rear view showing a bogie frame, FIG. 7 is a partially cutaway rear view for explaining the operation, and FIG. 8 is a partial perspective view showing a conventional example. 1 ... carriage, 5 ... connecting plate (connecting member), 7 ... bracket, 8 ... support shaft, 9 ... engaging hole, 11 ... locking part, 13
...... Insertion hole, 18 ...... Engagement pin, 20 ...... Coil spring, 22 ...
… Operation rod, 27 …… Guide plate, B …… Projection position, B …… Standby position.

Claims (1)

[Scope of utility model registration request] 1. A front and lower central lower surface of a bogie frame is provided with a connecting member which is rotatable at a forward projecting position and has an engaging hole in the projecting portion, and a projecting position of the projecting position is provided on a rear central lower surface of the bogie frame. An engaging portion into which the connecting member can be inserted is provided, and the engaging portion includes an engaging pin that can be fitted into an engaging hole of the connecting member,
A bogie connecting device comprising: an urging means for urging the engaging pin in the fitting direction; and an operating rod connected to the engaging pin and extending laterally of the bogie frame.