JPH035931Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a dump lever device for tilting the loading platform of a power carrier, and in particular to a technique for making the operating lever more compact.

(Prior art) As a conventional dump lever device of this type, the fifth
As shown in the figure, on one side of the loading platform T which is pivotably supported relative to the vehicle body F so as to be tiltable. A device in which one operating lever B is provided so as to protrude longer than the loading platform T is known.

(Problems to be Solved by the Invention) However, in the conventional dump lever device, since the length of the operating lever B, that is, the lever ratio is constant, there are problems as described below.

In other words, the longer the length of the operating lever B that protrudes from the loading platform T, the greater the lever ratio becomes, allowing the loading platform T to be tilted easily even when the load is heavy, but if it is too long, the turning of the transport vehicle becomes There is a limit to the length of the operating lever B because it gets in the way when driving and gets in the way of various operations and work, so there is a problem that a sufficient lever ratio cannot be obtained. .

(Means for Solving the Problems) The present invention was made to solve the problems of the conventional device as described above, and its purpose is to provide a dump lever whose lever ratio can be easily changed. In order to achieve this objective, the present invention utilizes the lever action of an operating lever that protrudes longer than the loading platform of a power carrier, which is pivotably supported with respect to the vehicle body so as to be tiltable. In the dump lever device, the operating lever is divided into a lever main body and an extension lever that is removably fitted to the tip side of the lever main body. , the tip of the support arm extending from the connecting end of the extension lever part along the longitudinal direction of the lever body is rotated with respect to a sliding support member that is slidably attached to the lever body. It has a structure that can be freely pivoted.

(Function) In the dump lever device for tilting the loading platform of a power carrier of the present invention, as described above, the operating lever is connected to the lever body and the extension lever that is removably fitted to the tip side of the lever body. By dividing it into two parts,
The lever ratio can be increased by fitting the extension lever part, and the lever ratio can be changed (reduced) by detaching the extension lever part.

Further, the tip of the support arm extending from the connecting end of the extension lever part along the longitudinal direction of the lever body is rotated with respect to a sliding support member that is slidably attached to the lever body. By pivoting the lever so that it can move freely, the extension lever that has been detached from the lever main body can be rotated and bent without separating from the lever main body, making it possible to make the operating lever more compact. A large lever ratio can be achieved without interfering with turning or various operations, and the extension lever portion can be inserted and removed with a single touch operation.

(Example) Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

First, the configuration of the embodiment will be explained.

As shown in FIGS. 1 to 3, the dump lever device A for tilting the loading platform of a power carrier according to this embodiment includes a lever mounting pipe 1, a lever main body 2, a locking device 3, and a sliding support member. 4, an extension lever portion 5, and a lever locking member 6, and the lever body portion 2 and the extension lever portion 5 constitute an operating lever B.

The lever attachment pipe 1 is a member for rotatably attaching the base of the lever main body 2 to the loading platform T, and is fixedly attached to the back surface of one side edge on the free end side of the loading platform T. ing.

The lever main body part 2 is a part that constitutes the main body of the operating lever B, and in this embodiment, a round pipe is used, and the base side thereof is rotatably inserted into the lever mounting pipe 1, and the lever body part 2 is a part that constitutes the main body of the operating lever B. The pipe 1 is connected in such a manner that sliding in the longitudinal direction is prevented by stopper pieces 20 and 21 that are respectively engaged with both opening end faces of the pipe 1.

Also, between the locking piece 22 protruding from the tip side of the lever mounting pipe 1 and the stopper piece 20, there is a space between the locking piece 22 and the stopper piece 20 for urging the lever main body 2 in a direction that always rotates counterclockwise in FIG. A coil spring 23 is interposed therebetween, and a stopper pin 24 for stopping the rotation at a certain position is protruded from the rear end of the lever mounting pipe 1 so as to engage with the stopper piece 21.

The locking device 3 is a device that locks the tilting of the loading platform T in a horizontal state, and includes a locking pin 31 protruding from a base plate 30 fixed to the vehicle body F side and a locking pin 31 hanging down from the back side of the lever body 2. The engagement hook 32 is configured by a locking engagement hook 32.

The engaging hook 32 includes a hook portion 32a that engages with the locking pin 31 by the repulsive force of the coil spring 23, and a hook portion 32a that engages with the locking pin 31 by the repulsive force of the coil spring 23, and a hook portion 32a that locks against the repulsive force of the coil spring 23 by lowering the lever body portion 2. Guide slope 32 for engaging the pin 31 with the hook portion 32a
b.

Therefore, in this locking device 3, the locked state is released by rotating the lever main body 2 clockwise against the repulsive force of the coil spring 23, and the loading platform T is also changed from the tilted position to the horizontal state. Just put it back and it will be automatically locked.

The sliding support member 4 is a member for facilitating the fitting and dismounting work of the extension lever part 5 to and from the lever body part 2. In this embodiment, a round pipe is used, and the sliding support member 4 It is attached freely.

A bearing member 40 is provided on the top surface of the sliding support member 4 on the front end side, and a slit 41 is provided on the bottom surface of the sliding support member 4 on the rear end side.

The extension lever section 5 is a member that extends the lever body section 2, and in this embodiment, a round pipe with a grip 50 at its tip is used, and its connecting end is fitted onto the lever body section 2. It is removably fitted.

A support arm 51 having a substantially gate-shaped cross section is provided in a protruding manner along the longitudinal direction of the lever main body 2 from the connecting end of the extension lever 5 .
The extension lever part 5 is provided in a state in which it can freely rotate in the vertical direction about the pin 52 by pivotally attaching the tip end thereof to the bearing member 40 of the sliding support member 4 with a pin 52 .

Furthermore, stopper bolts 25 and 26 are attached to the lower surface of the lever main body 2 to restrict the sliding range of the sliding support member 4 within a range in which the extension lever part 5 can be inserted and removed. is provided so as to be engageable within the slit 41 of the sliding support member 4.

The lever locking member 6 is a member for fixing the extension lever part 5, which has been detached from the lever main body part 2 and rotated upward, in a bent state so as not to interfere with various operations. A support plate 60 fixed to the upper surface of the rear wall is provided with a pair of left and right fitting pieces 61 for removably fitting the extension lever part 5 thereinto.

Next, the operation of the embodiment will be explained separately for cases where the load is light and cases where the load is heavy.

(a) When the load is light If the load is light, first move the extension lever part 5 from the extended state of the operating lever B shown in Figures 1 and 4 (a) as shown by the dashed line in Figure 4 (ro). After detaching from the lever main body 2 by pulling it in the longitudinal direction, the extension lever part 5 is rotated upward about the pin 52, as shown by the solid line in FIGS. 2 and 4, Fitting piece 61 of lever locking member 6
By fitting into the extension lever part 5, the extension lever part 5 is fixed in a compactly bent state.

In this state, as shown in FIG. 3B, the stopper bolt 26 has been removed from the slit 41 by sliding the sliding support member 4 to the left, and therefore the lever body 2 is in a state where it can rotate independently.

Therefore, after releasing the locked state of the locking device 3 by rotating the lever body 2 clockwise in FIG. 2, the loading platform T can be tilted by holding the tip of the lever body 2 and lifting it upward. I can do it.

(b) When the load is heavy Next, when the load is heavy, first move the operating lever B from the shortened position shown by the solid line in Figures 2 and 4 (b) to the extension lever section as shown by the dashed line in the same figure. 5
After pivoting downward, the extended lever portion 5 is fitted to the lever body portion 2 as shown in FIGS. 1 and 4A, thereby forming the elongated operating lever B.

In this state, as shown in FIG. 3A, the slit 4 is opened by sliding of the sliding support member 4.
1 is engaged with the stopper bolt 26, and therefore the rotation of the extension lever section 5 can be transmitted to the lever body section 2.

Therefore, after releasing the locked state of the locking device 3 by rotating the extension lever part 5 clockwise in FIG. can be done.

As explained above, in the dump lever device A for tilting the loading platform of a power carrier vehicle according to the present embodiment, the operation lever B is moved toward the lever body 2 and the tip side of the lever body 2, as described above. By dividing the extension lever part 5 into the extension lever part 5 that can be fitted in and out, the lever ratio can be increased by fitting the extension lever part 5, and the lever ratio can be changed by detaching the extension lever part 5 ( decrease).

Further, the distal end portion of the support arm 51 extending from the connecting end of the extension lever portion 5 along the longitudinal direction of the lever body portion 2 is attached to a sliding support member slidably attached to the lever body portion 2. 4, the extension lever part 5 detached from the lever body part 2 can be rotated upward and bent into a bent state without separating from the lever body part 2. Therefore, the operating lever B can be made more compact, and a large lever ratio can be achieved without interfering with turning movement or various operations, and the extension lever section 5 can be inserted and removed with a single touch operation. Be able to do it.

Although the embodiments of the present invention have been described above in detail with reference to the drawings, the specific configuration is not limited to these embodiments, and the present invention may be modified without departing from the gist of the present invention. included.

For example, in the embodiment, the case where the support arm is provided at the upper part is taken as an example, but the case is not limited to this, and the support arm is provided at the top.
The book support arms may be provided along both left and right sides of the lever main body.

(Effect of the invention) As explained above, in the dump lever device for tilting the loading platform of a power carrier vehicle according to the invention, the operation lever can be freely inserted into and removed from the lever body and the tip side of the lever body. By dividing it into an extension lever part that is fitted, the lever ratio can be increased by fitting the extension lever part, and the lever ratio can be changed (reduced) by detaching the extension lever part. Become.

Further, the tip of the support arm extending from the connecting end of the extension lever part along the longitudinal direction of the lever body is rotated with respect to a sliding support member that is slidably attached to the lever body. By pivoting the lever so that it can move freely, the extension lever that has been detached from the lever main body can be rotated and bent without separating from the lever main body, making it possible to make the operating lever more compact. A large lever ratio can be achieved without interfering with turning or various operations, and the extension lever part can be inserted and removed with a single touch.

[Brief explanation of drawings]

Fig. 1 is a perspective view of a dump lever device for tilting a loading platform according to an embodiment of the present invention, with the operating lever extended, Fig. 2 is a perspective view of the operating lever shortened, and Fig. 3 A and B are A bottom view showing the action of the sliding support member, FIGS. 4A and 4B are action explanatory views of the same embodiment, and FIG. 5 is an explanatory view showing a conventional dump lever device. B...Operation lever, F...Vehicle body, T...Cargo platform,
2...Lever body part, 4...Sliding support member, 5...
...Extension lever part, 51...Support arm, 52...
Pin (pivot).

Claims (1)

[Scope of Claim for Utility Model Registration] A system for manually tilting the loading platform of a power transport vehicle, which is pivotally supported on the vehicle body so as to be tiltable, using the lever action of an operating lever that projects longer than the loading platform. In the dump lever device, the operating lever is divided into a lever main body and an extension lever part that is removably fitted to the distal end side of the lever main body, and the connecting end of the extension lever part The distal end of the support arm extending along the longitudinal direction of the lever body is rotatably pivoted to a sliding support member that is slidably attached to the lever body. A dump lever device for tilting the loading platform of a power transport vehicle.