JPH0640542Y2 - Operating device for carrier - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an operating device for a transporting vehicle, which is capable of operating one interlocking lever stepwise to sequentially switch between a clutch lever and a brake lever.

[Conventional technology]

As shown in FIG. 10, a conventional carrier operating device 2'of this type is formed by providing a lever rotating shaft 7 fixed to a handle portion 6 with a brake lever portion 8 and a clutch lever portion 9. There is. In the brake lever portion 8, a brake lever 12 and a brake link receiver 13 are fixed to a tubular body 11 fitted to the lever rotating shaft 7, and one end of a brake link 14 is attached to the brake link receiver 13. It is fixed. The other end of the brake link 14 is connected to a brake (not shown) via a wire 16 or the like to switch the brake lever 12 between an operating position and a release position and the brake (not shown).
Is activated and released. Also, the clutch lever portion 9
Is adjacent to the brake lever portion 8, and a clutch lever 19 and a clutch link receiver 20 are fixedly attached to a tubular body 18 fitted to the lever rotation shaft 7. One end of a clutch link 21 is fixed to the clutch link receiver 20. The other end of the clutch link 21 is connected to a clutch (not shown) via a wire 23 or the like, and the clutch lever 19 is switched between an operating position and a releasing position to operate the clutch (not shown). I am releasing it.

According to the above-mentioned operating device 2'of the transport vehicle, the travel of the transport vehicle is performed by switching the brake lever 12 to the release position and the clutch lever 19 to the operating position. or,
To stop the vehicle, the clutch lever 19 is switched to the release position and the brake lever 12 is switched to the operating position.

[Problems to be solved by the invention]

However, in the above-mentioned carrier operating device 2 ', two operations of switching the clutch lever 19 to the disengaged position and further switching the brake lever 12 to the operating position are required to stop the car in an emergency. However, there is a problem that it takes time to completely stop the carrier.

[Means for solving problems]

The present invention has been made in view of the above circumstances, and the specific means thereof is to pivotally support an interlocking lever on a lever rotation shaft so as to be independently rotatable with respect to a clutch lever and a brake lever. , A switching rod that moves in the rotational direction of the clutch lever and the brake lever in conjunction with the operation of the interlocking lever is arranged along the lever rotation axis, and one end of the switching rod in the longitudinal direction is turned in the rotational direction. Is projected and the other end is bent in a stepwise manner so that the other end retracts, and when stopping the transport vehicle, operate the interlocking lever to press one end of the switching rod against the clutch lever on one side, and By pressing the other end of the switching rod against the brake lever on one side, the clutch lever and the brake lever are sequentially rotated to the other side.

[Action]

According to the above means, when the switching rod is stepwise interlocked with the interlocking lever by operating the interlocking lever, the clutch lever on one side is switched to the other side, and then the brake lever is switched to the other side, so that the transport vehicle is Stop. As described above, since the carrier can be stopped by operating only one interlocking lever, it is possible to stop the carrier earlier than individually operating the clutch lever and the brake lever. Also, when only the clutch lever is changed over, the interlocking lever can be changed over.

〔Example〕

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

The same components as those of the conventional technique are designated by the same reference numerals and the description thereof will be omitted.

As shown in FIG. 1, the operating device 2 of the carrier 1 according to the embodiment of the present invention is provided with a loading platform 4 at the upper front of the traveling unit 3, and a drive source 5 and a handle unit 6 at the upper rear. Car 1
It is provided on a lever rotating shaft 7 fixed to the handle portion 6.

As shown in FIG. 2, the operating device 2 is provided with a clutch lever 19 and a brake lever 12 which are pivotally supported by the lever rotating shaft 7, and the clutch lever 19 and the brake lever 12 are placed on the same side. It rotates to switch between running and stopping of the transport vehicle 1, and an interlocking lever 26 is pivotally supported on the lever rotation shaft 7 so as to be independently rotatable with respect to the clutch lever 19 and the brake lever 12. In addition, a switching rod 28 that moves in the rotating direction of the clutch lever 19 and the brake lever 12 in conjunction with the operation of the interlocking lever 26 is arranged along the lever rotation shaft 7,
In the middle of the longitudinal direction of 28, one end is projected in the rotating direction and the other end is retracted in a stepwise manner so that the carrier 1
To stop the operation, the interlocking lever 26 is operated to press one end of the switching rod 28 against the clutch lever 19 on one side, and further the other end of the switching rod 28 to one side. By pressing on the brake lever 12 in
The clutch lever 19 and the brake lever 12 are configured to sequentially rotate to the other side. As shown in FIGS. 3 and 4, the brake lever portion 8 includes a brake lever 12 having a U-shaped upper portion bent to a cylindrical body 11 fitted to the lever rotation shaft 7 and a plate-shaped brake. The link receiver 13 is fixed, and one end of a crescent-shaped brake link 14 is fixed to the brake link receiver 13. The other end of the brake link 14 is connected to a brake 15 for stopping the traveling of the traveling unit 3 with a wire 16 or the like, and the brake 15 is operated and released by switching the brake lever 12. As shown in FIG. 3, when the brake lever 12 is tilted toward the traveling direction of the transport vehicle 1 and comes into contact with the locking plate 30 to be in the release position A, the brake 15 is released and the transport vehicle 1 moves. No involvement in driving. Brake lever 12
As shown in FIG. 4, when the transport vehicle 1 is tilted to the side opposite to the traveling direction and abuts the locking plate 30 and is in the operating position B, the brake 15 is activated to stop the traveling. Also, brake 15
Is connected to the tension spring 17 attached to the fixed end, and the action of the tension spring 17 moves the brake lever 12 from the release position B to the fulcrum crossing position C, which is slightly changed, to the operating position A. It is designed to switch. The clutch lever portion 9 is, as shown in FIGS. 5 and 6,
A clutch lever 19 having a shape similar to that of the brake lever 12 is fixed to a cylindrical body 18 fitted to the lever rotation shaft 7 such that a U-shaped bent portion faces the brake lever 12 and a plate is formed. The clutch-shaped link receiver 20 is fixed, and one end of a crescent-shaped clutch link 21 is fixed to the clutch-shaped link receiver 20. The other end of the clutch link 21 is connected to a clutch 22 that transmits the power of the drive source 5 to the traveling unit 3 by a wire 23, and the clutch 22 is operated and released by switching the clutch lever 19 to drive the drive source 5.
Is transmitted to the traveling unit 3 and released. As shown in FIG. 5, when the clutch lever 19 is tilted toward the traveling direction of the transport vehicle 1 and comes into contact with the locking plate 30 and is in the operating position D, the clutch 22 is activated and the transport vehicle 1 is moved. Let it run.
As shown in FIG. 6, when the clutch lever 19 is tilted to the side opposite to the traveling direction of the transport vehicle 1 and abuts the locking plate 30 and is in the disengagement position E, the clutch 22 is disengaged and the traveling section is The power of the drive source 5 is not transmitted to 3. Further, the clutch 22 is connected to a tension spring 24 attached to the fixed end, and the action of the tension spring 24 releases the clutch 22 only by exerting a force from the operating position D to a fulcrum crossing position C slightly switched. It is designed to switch to position E. Interlocking lever part 10
As shown in FIG. 2, the V-shaped interlocking lever 26 and the interlocking lever 26 are attached to the tubular body 25 fitted to the lever rotating shaft 7.
A rod 27 bent in an L shape is fixed to the opposite side of the rod 27, and a rod-shaped switching rod 28 bent at a right angle to the end of the rod 27.
Are fixed and formed so as to be parallel to the lever rotation shaft 7. As shown in FIG. 7, the interlocking lever portion 10 is normally provided with the interlocking lever 26 in the a position and the brake lever.
12 contacts the locking plate 30 to release position A and clutch lever
The switching rod 28 is installed so as to come into contact with the clutch lever 19 when 19 comes into contact with the locking plate 30 and reaches the operating position D. When the interlocking lever 26 is pushed down to the position of B as shown in FIG. 8, the switching rod 28 moves the clutch lever 19 to the position C beyond the fulcrum, and the switching rod 28 moves to the position where it contacts the brake lever 12. To do. Further, when the interlocking lever 26 is pushed down to the position of C as shown in FIG. 9, the brake lever 12 is moved to the fulcrum crossing position C by the switching rod 28, and the brake lever 12 and the clutch lever 19 are respectively in the operating positions. B and release position E are switched.
Further, the interlocking lever 26 is connected to the tension spring 29 attached to the fixed end of the handle portion 6, and returns to the normal position when the pressing force applied to the interlocking lever 26 is removed.

According to the above operation position 2, the operation of the transport vehicle 1 can be performed as follows.

In order to drive the transport vehicle 1, the brake lever 12 is switched to the release position A, the clutch lever 19 is switched to the operating position D, the brake 15 is released, and the drive source 5 and the traveling unit 3 are connected. To activate the clutch 22. To stop the transport vehicle 1 from the traveling state, normally, as shown in FIGS. 3 and 6, the clutch lever 19
Is switched to the release position E, and then the brake lever 12 is switched to the operating position B. However, if the interlocking lever 26 is pushed down from the position "a" to the position "c" from the running state to switch the clutch lever 19 to the release position E and the brake lever 12 to the operating position B, The stop time can be made shorter than the stop time of the transport vehicle 1 due to the above-mentioned normal stop operation, and the brake 15 is the clutch.
It is possible to operate earlier than the release of 22 and prevent the sudden movement of the carrier 1 due to the sudden stop. Further, push down the interlocking lever 26 from the position a to the position b to disengage the clutch lever 19
In the release position E, it is possible to perform work such as utilizing the power of the prime mover of the transport vehicle 1. In this case, it is not necessary to grip the clutch lever 19 and the interlocking lever 26, and the operability is excellent.

Moreover, since the interlocking lever 26 is operated only when the transport vehicle 1 is stopped or the power of the prime mover of the transport vehicle 1 is used for other work as described above, when the transport vehicle 1 is running, When the driver operates by grasping only one of the clutch lever 19 and the brake lever 12,
There is no erroneous operation of accidentally rotating both the clutch lever 19 and the brake lever 12. Further, since the interlocking lever 26 pivotally supported by the lever rotation shaft 7 can rotate independently of the clutch lever 19 and the brake lever 12, when operating only one of the clutch lever 19 and the brake lever 12, A malfunction that the other lever rotates carelessly does not occur.

[Effect of device]

As is clear from the above description, the clutch lever and the brake lever can be switched at once by operating the interlocking lever. Therefore, the clutch lever and the brake lever are individually operated and switched to completely stop the transport vehicle. There is an advantage, for example, when it is possible to stop earlier than the time and to stop the truck urgently. It is also possible to switch the clutch lever and brake lever individually by operating the interlocking lever stepwise, so that only the clutch lever is rotated to release the clutch, and in this state, for example, the power of the prime mover of the transport vehicle is increased. You can do the work you use. Therefore, it is not necessary to operate the clutch lever by gripping the clutch lever and the interlocking lever, which is excellent in operability.

Moreover, since the operation of the interlocking lever is limited to the case where the transport vehicle is stopped or the power of the prime mover of the transport vehicle 1 is used for other work, etc., the driver can operate the brake lever or the clutch while the transport vehicle is running. There is no erroneous operation of accidentally rotating both the clutch lever and the brake lever when operating only one of the levers. Also, since the interlocking lever pivotally supported by the lever rotation shaft can rotate independently of the clutch lever and brake lever, when operating either the clutch lever or the brake lever, the other lever is not prepared. There is no malfunction of turning to.

BRIEF DESCRIPTION OF THE DRAWINGS FIGS. 1 to 9 show an embodiment of the present invention, FIG. 1 is an overall schematic perspective view of a carrier, and FIG. 2 is a perspective view of an operating device.
3 is a sectional view showing a released state of the brake, FIG. 4 is a sectional view showing an activated state of the brake, FIG. 5 is a sectional view showing an activated state of the clutch, and FIG. 6 is a sectional view showing a released state of the clutch. 7 and 8 are side views showing the normal position of the interlocking lever, FIG. 8 is a side view showing the interlocking lever position when the clutch lever is switched, and FIG. 9 is an interlocking lever position when the brake lever is switched. The side view shown in FIG. 10 is a perspective view for explaining a conventional technique. 1 …… Transport vehicle, 2 …… Operating device, 12 …… Brake lever, 19 …… Clutch lever, 26 …… Interlocking lever, 28 …… Switching rod.

Claims (1)

[Scope of utility model registration request] 1. A lever rotating shaft fixed to a handle portion of a carrier, and a clutch lever and a brake lever pivotally supported by the lever rotating shaft, respectively, the clutch lever and the brake lever being on the same side. In an operating device for a transporting vehicle that rotates to switch between running and stopping of the transporting vehicle, an interlocking lever is pivotally supported on the lever rotation shaft so as to be independently rotatable with respect to the clutch lever and the brake lever. , A switching rod that moves in the rotational direction of the clutch lever and the brake lever in conjunction with the operation of the interlocking lever is arranged along the lever rotation axis, and the switching rod is set in the middle of the switching rod in the longitudinal direction. When the carriage is stopped by bending in a stepwise manner so that one end projects toward the other end and retracts at the other end, the interlocking lever is operated to move the one end of the switching rod. , The clutch lever and the brake lever are sequentially rotated to the other side by pressing the clutch lever on one side and further pressing the other end of the switching rod to the brake lever on the one side. An operating device for a carrier, which is characterized in that