JPH0247058Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Industrial application field] This invention operates the interlocking lever to switch between the brake lever and the clutch lever, and the driving of the transport vehicle.
The present invention relates to an operating device for a transport vehicle that can be stopped safely and reliably.

[Conventional technology]

The operating device 2' of the conventional transport vehicle 1 of this type is
This will be explained with reference to FIG. 7 and FIG.

As shown in FIG. 6, the transport vehicle 1 has a running section 15
A loading platform 16 is provided on the front side of the upper part of the vehicle, and a driving part 17 and a handle part 18 are provided in the rear part of the upper part of the running part 15. The cargo and the like placed on the loading platform 16 are transported to the destination. In the figure, the transport vehicle 1 runs on crawlers 19, but it may run on wheels. The handle portion 18 is formed from two L-shaped handles 20 with the upper side bent rearward, which are provided at an appropriate interval on the left and right sides of the rear end of the loading platform 16. The drive section 17 is located below the bent portion.

The operating device 2', as shown in FIG.
A fulcrum shaft 21 provided so as to span over the rearwardly bent portion of the two handles 20 and this fulcrum shaft 21
It is composed of a brake lever section 22, a clutch lever section 23, and an interlocking lever section 24, which are provided in the brake lever section 22, clutch lever section 23, and interlocking lever section 24. The brake lever portion 22 includes a cylindrical body 25
It is composed of a brake lever 4 and a brake link receiver 26 fixed to the outer periphery of the cylindrical body 25, and a crescent-shaped brake link 27 whose one end is attached to the brake link receiver 26.
The other end of this brake link 27 is a wire 28
It is connected to the brake 13 via etc. The cylindrical body 25 has a brake lever 4 attached to the fulcrum shaft 21.
When the brake lever 4 is rotated forward until it hits the end of the hole provided in the stop plate 29 and switched, the brake 13 is released and the brake lever 4 is inserted into the upper position. The brake 13 is activated when the stop plate 29 is rotated backward until it hits the end of the hole provided in the stop plate 29 and switched. The clutch lever portion 23 also includes a cylindrical body 30, a clutch lever 5 fixed to the cylindrical body 30, a clutch link receiver 31, and a crescent-shaped clutch link 32 having one end attached to the clutch link receiver 31. The other end of this clutch link 32 is connected to the clutch 14 via a wire 33 or the like. The cylindrical body 30 is fitted into the fulcrum shaft 21 so as to be adjacent to the cylindrical body 25 of the brake lever portion 22 and with the clutch lever 5 in the upper position, and the clutch lever 5 is connected to the stop plate. Rotate it forward until it hits the end of the hole in 29 and switch.
When the clutch 14 is activated and the clutch lever 5 is rotated rearward until it touches the end of the hole provided in the stop plate 29, the clutch 14 is released. The interlocking lever section 24 includes two cylindrical bodies 34, a U-shaped interlocking lever 3 whose ends are respectively fixed to the outer periphery of each cylindrical body 34, and a U-shaped interlocking lever 3 fixed to the outer periphery of one of the cylindrical bodies 34, and It is composed of an L-shaped interlocking rod 6 that is parallel to the inner hole of the cylindrical body 34. The interlocking rod 6 is connected to the two cylindrical bodies 3.
4 are located outside the cylinders 25 and 30 of the brake lever part 22 and the clutch lever part 23, respectively,
The interlocking lever 3 is fixed to the outer periphery of the cylindrical body 34 so as to be located forward of the brake lever 4 and the clutch lever 5 when the interlocking lever 3 is fitted into the fulcrum shaft 21 so that the U-shape of the interlocking lever 3 projects rearward. When the interlocking lever 3 is pressed downward, the interlocking rod 6 rotates backward, simultaneously switching the brake lever 4 and clutch lever 5, which have been switched forward, backward, operating the brake 13, and moving the clutch 14. is now being released. In addition, the brake 13
The clutch 14 can be stopped without applying force by rotating the brake lever 4 and clutch lever 5 by a certain angle from the front to the rear or from the rear to the front using the force of tension springs 35, 36 attached to the fixed ends. It is designed to switch by rotating backward or forward until it hits the end of a hole provided in the plate 29.
The interlocking lever 3 is also configured to automatically rotate upward and return to its home position when the downward pressing force is removed by a tension spring 37 or the like attached to the fixed end of the handle 20 or the like.

According to the operation device 2' of the transport vehicle 1 as described above,
To stop the transport vehicle 1 in an emergency while the transport vehicle 1 is running, simply press down the interlocking lever 3, switch both the brake lever 4 and the clutch lever 5 at once to activate the brake 13, The clutch 14 can be released to minimize the distance to which the transport vehicle 1 comes to a stop.

[Problem that the invention attempts to solve]

However, in the operating device 2' of the transport vehicle 1,
In order to start the transport vehicle 1 again after stopping the running transport vehicle 1', the brake lever 4 and the clutch lever 5 must be operated individually. In addition to poor workability due to the large number of switching operations, there is also the problem of poor safety due to sudden starts or stalling due to operational errors.

[Means for solving problems]

In view of the above circumstances, this invention allows the relative positions of the brake lever and clutch lever to be changed in various ways by pushing the interlocking lever upward. An interlocking pin that is parallel to the interlocking rod and that is longer than the distance between the brake lever and the clutch lever is attached to the interlocking rod so that it can slide freely in the longitudinal direction. It is in.

[Effect]

According to the above means, the interlocking rod acts on the brake lever and the clutch lever, and when the interlocking lever is operated in the opposite direction so that the brake is activated and the clutch is released, the interlocking pin is moved. Depending on its relative position to the rod, the interlocking pin can act on both the brake lever and the clutch lever, or on one of the brake levers or the clutch lever, to actuate and release the brake or actuate and release the clutch. In this way, it is possible to start the transport vehicle, travel downhill at low speed, and prevent engine stalling when starting without having to perform any troublesome operations.

[Example] An example of this invention will be described below based on FIGS. 1 to 5.

Note that the same reference numerals are given to the same components as those in the prior art, and the explanation thereof will be omitted.

The operating device 2 of the transport vehicle 1 according to the embodiment of this invention is different from the operating device 2' of the conventional transport vehicle 1, as shown in FIG. The interlocking pin receiver 8 allows the interlocking rod 6 to rotate further forward than before, and the interlocking pin 7 is fitted in a position opposite to the interlocking rod 6, sandwiching the brake lever 4 and clutch lever 5. It is provided on the interlocking rod 6 via a connecting piece 9. The interlocking pin receiver 8 has a cylindrical shape shorter than the distance between the adjacent brake levers 4 and clutch levers 5, and the inner hole and the interlocking rod 6 are parallel to each other. A pin hole 10 is provided on the outer periphery of the interlocking pin receiver 8, and a snap pin 12 or the like is inserted into the pin hole 10 by aligning it with one of the plurality of pin holes 11 provided in the longitudinal direction of the outer periphery of the interlocking pin 7. Interlocking pin 7
is fixed to this interlocking pin receiver 8. The interlocking pin 7 is formed to be longer than the distance between the brake lever 4 and the clutch lever 5, and when the interlocking lever 3 is pushed upward, the brake lever 4 and/or the clutch lever 5 which are being switched rearward are moved to this interlocking pin. 7 to switch forward.

The operation of the operating device 2 of the above-mentioned transport vehicle 1 will be explained.

When the interlocking pin 7 is not inserted into the interlocking pin receiver 8 as shown in FIGS. When the interlocking lever 3 is pushed downward when the brake lever 4 and clutch lever 5 are switched forward as shown in FIG. As shown in Figure 2b, the brakes 13 are simultaneously switched to the rear.
Activate the clutch 14 to release the transport vehicle 1.
can be stopped. Also, interlocking lever 3
Even if the brake lever 4 and the clutch lever 5 are pushed upward, the brake lever 4 and the clutch lever 5 maintain the switched position as shown in FIG. .

When the interlocking pin 7 protrudes from the interlocking pin receiver 8 at equal distances on both sides as shown in FIG. At some point, if the interlocking lever 3 is pushed downwards, the vehicle 1 will stop, as shown in FIG. 3b, as with the conventional operating device 2'. Next, when the transport vehicle 1 is in a stopped state, as shown in FIG. The lever 4 and clutch lever 5 are switched forward to put the transport vehicle 1 in a running state. In this way, the transport vehicle 1 can be easily run and stopped by raising and lowering the interlocking lever 3.
This can save labor when performing work that requires repeated stops.

If the interlocking pin 7 protrudes from the interlocking pin receiver 8 toward the clutch lever 5 and does not come into contact with the brake lever 4, as shown in FIGS. To stop the vehicle, that is, to switch from the state shown in FIG. 4a to the state shown in FIG. . Next, when the transport vehicle 1 is in a stopped state, if the interlocking lever 3 is pushed upward, the brake lever 4 will move as shown in FIG. 4c.
remains switched rearward, only the clutch lever 5 is switched forward, the brake 13 is activated, and the clutch 14 is activated. In this way, it is possible to operate the engine brake and also operate the brake 13 to safely travel downhill.

If the interlocking pin 7 protrudes from the interlocking pin receiver 8 toward the brake lever 4 and does not come into contact with the clutch lever 5, as shown in FIGS. 5a, b, and c, the conventional operating device 2' Perform the same operation to move the brake lever 4 and clutch lever 5 to the fifth position.
By switching from the state shown in FIG. 4A to the state shown in FIG. 4B, the transport vehicle 1 can be stopped from the running state. Next, when the transport vehicle 1 is in a stopped state, when the interlocking lever 3 is pushed upward from the normal position, only the brake lever 4 is switched forward and the brake 13 is released, as shown in FIG. 5c. The clutch lever 5 is now in a released state. From this state, if the clutch lever 5 is shifted forward, the vehicle 1 can be smoothly started without stalling the engine.

[Effect of idea]

As is clear from the above explanation, by providing an interlocking pin that interlocks with the interlocking lever and making it possible to slide the position of this interlocking pin, it is possible to operate the interlocking lever to move a stopped transport vehicle. For example, it is possible to simplify the starting operation, reduce the speed when traveling downhill, and prevent engine stalling. In this way, the safety and workability of the transport vehicle are improved by switching the brake lever and clutch lever using the interlocking pin.

[Brief explanation of drawings]

1 to 5 show examples of this invention,
Figure 1 is a perspective view of the operating device, Figure 2 is an explanatory diagram showing the operation when the interlocking pin is not used, and Figure 3 is an explanatory diagram showing the operation when the interlocking pin contacts the brake lever and clutch lever. , Fig. 4 is an explanatory diagram showing the operation when the interlocking pin contacts only the clutch lever, Fig. 5 is an explanatory diagram showing the operation when the interlocking pin contacts only the brake lever, and Figs. 6 and 7. 6 shows an explanatory diagram for explaining the conventional technology, FIG. 6 is an overall perspective view of a transport vehicle, and FIG. 7 is a perspective view of an operating device. 1... Transport vehicle, 2, 2'... Operating device, 3...
Interlocking lever, 4... Brake lever, 5... Clutch lever, 6... Interlocking rod, 7... Interlocking pin, 8
... Interlocking pin holder, 13 ... Brake, 14 ... Clutch, 18 ... Handle part, 21 ... Fulcrum shaft,
22... Brake lever part, 23... Clutch lever part, 24... Interlocking lever part.

Claims (1)

[Scope of Claim for Utility Model Registration] A brake lever part for operating and releasing the brake, a clutch lever part for operating and releasing the clutch, and a fulcrum shaft provided in the handle part, and a clutch lever part for operating and releasing the clutch; An interlocking lever provided with an interlocking rod that acts on the brake lever of the lever part and the clutch lever of the clutch lever part to operate the brake connected to the brake lever part and release the clutch connected to the clutch lever part. an operating device for a transport vehicle, which is parallel to the interlocking rod at a position opposite to the interlocking rod, sandwiching the brake lever and the clutch lever, and at a distance between the brake lever and the clutch lever; An operating device for a transport vehicle, characterized in that an interlocking pin that is longer than the distance is attached to the interlocking rod so as to be slidable in the longitudinal direction.