JPH086609Y2 - Carrier front-rear movement adjustment device - Google Patents

Description

[Detailed Description of the Invention] (a) Field of Industrial Application The present invention relates to a front and rear movement adjusting device for a carrier, which allows the dump truck to be moved to the front and rear positions on the machine body to be mounted and changed.

(B) Conventional Technology Conventionally, in a transport vehicle in which a loading platform that can be dumped by a hydraulic cylinder is pivotally supported on a slide frame and the loading platform is mounted to be movable in the front-rear direction of the machine body,
As shown in Japanese Patent Application No. 2-39681 filed by the applicant, when the loading platform is moved back and forth to be reattached, the hydraulic cylinder is reattached, the bolt is reattached, or the loading platform is pushed. It was supposed to be done while moving by pulling and pulling.

(C) Problems to be solved by devising However, the operation is troublesome because it requires a tool, and moreover, it requires labor, which causes troubles such as time and labor and poor workability. Was there.

(D) Means for Solving the Problems The present invention has been devised so as to solve such problems and enable quick and easy operation. Therefore, a support frame plate connected to the other end side of the hydraulic cylinder is provided. It is installed so as to be movable back and forth with respect to the inner frame of the traveling body, and a locking pin that can be fixed at the front and rear position is detachably engaged with the support frame plate, and the loading platform is locked on the machine side. The body is configured to be freely engageable.

(E) Action Therefore, when moving the luggage carrier at the rear position to the front side, the locking body is engaged with the luggage carrier to lock the luggage carrier and the locking pin is removed from the support frame plate to release the locking. ,
When the hydraulic cylinder is extended in that state, the support frame plate moves forward.Therefore, the engagement body is released and the locking pin is inserted and fixed in the support frame plate. When the cylinder is contracted, the loading platform can be slid forward, and by the reverse operation, the loading platform can be moved rearward.

(H) Example Next, an example shown in the drawings will be described. FIG. 2 is a side view of the carrier, which is equipped with crawler-type traveling bodies (5) and (5) on both sides of the lower part, and is equipped with a boarding operation section (A) at the front part of the vehicle. A mount (10) for the crane (B) is detachably fixed above the main frame (9) behind the section (A), and is slidably fitted into the rear part of the main frame (9). At the rear end of the slide frame (3), the lower rear portion of the dump truck (2) is pivotally supported so as to be rotatable around a fulcrum ((1), and the main frame (9) and the slide frame (3) are supported. The lock pin (12) is detachably inserted into and locked so that when the crane (B) is attached, the loading platform (2) is moved to the rear side of the crane (B), and the crane (B) is also moved. If removed, move the loading platform (2) forward until it approaches the rear of the boarding section (A). It is configured so that it can be moved and attached.

Both guide plates (13) are arranged parallel to each other with a space above the frame (6) horizontally extending inward between the two traveling bodies (5).
(13) is erected, and a guide pin (14) is laid horizontally between the lower portions of both guide plates (13) and (13), and both support frame plates (4) and (4) are parallel and long in the front-rear direction. The guide pins (14) are inserted into the longitudinal holes (15) (15) formed in the lower part of the guide frame, and the guide plates (4) and (4) are located at the front and rear positions above the guide plates (14). 13) The upper part of both support frame plates (4) and (4) are formed with holes (16a) and (16b), respectively, into which locking pins (7) that can be detachably inserted can be fitted A tip end portion of a piston rod (1a) extending from a hydraulic cylinder (1) connected via a connecting pin (17) is connected to a lower side of the cargo bed (2).

The base of the hook-shaped engaging body (8) is pivotally supported on the support pin (18) projecting laterally of the main frame (9),
A locking pin (19) that can be engaged with the engaging body (8) is provided so as to project from the lateral side of the front part of the loading platform (2).

Therefore, when the crane (B) is attached as shown in FIG. 2, the luggage carrier (2) is attached to the rear side as shown in FIGS. 1 to 4,
With the slide frame (3) locked by the lock pin (12), the platform (2) can be dumped by the hydraulic cylinder (1).

Further, in order to remove the crane (B) and use only the dump truck, when moving the loading platform (2) forward so as to approach the rear of the boarding operation unit (A), the locking body (8) is engaged. The locking pin (7) is locked by engaging the stop pin (19), and the locking pin (7) is removed from the guide plates (13) (13) and the hole (16a) to release the locking. When the hydraulic cylinder (1) is operated and extended by, the both support frame plates (4) and (4) are slid forward to the guide pins (14) and move, as shown in FIG. Therefore, the locking body (8) is removed from the locking pin (19) to release the engagement, and the locking pin (7) is fitted into the guide plates (13) (13) and the hole (16b) to support both. When the frame plates (4) and (4) are fixed and the hydraulic cylinder (1) is operated to reduce the size, the platform (2) slides. It will be slid forward with the ram (3), and if the lock pin (12) is inserted and locked, the loading platform (2) can be moved forward as shown in FIG. You can do it.

In the case of moving the loading platform (2) backwards, it can be moved by the reverse procedure of the above operation.

(G) Result of the invention As described above, according to the present invention, the loading platform (2) is moved back and forth by the hydraulic cylinder (1) simply by attaching / detaching the locking pin (7) and engaging / disengaging the locking body (8). Therefore, it is possible to perform the back-and-forth movement operation of the loading platform (2) safely, quickly and easily and with good workability without using labor and pushing and pulling the loading platform as in the conventional case. Therefore, it has a feature that it can be suitably implemented with a simple structure that works well.

[Brief description of drawings]

FIG. 1 is a side view of an essential part of an embodiment of the present invention, FIG. 2 is a side view of a transport vehicle, FIG. 3 is a plan sectional view of a part of FIG. 1, and FIG. Lower side plan sectional view, FIG. 5 and FIG.
The drawings respectively show the operation explanatory views of FIG. (1) …… hydraulic cylinder, (2) …… cargo (3) …… slide frame (4) …… supporting frame plate, (5) …… running body (6) …… frame, (7) …… Stop pin (8) …… Locking body

Claims (1)

[Scope of utility model registration request] 1. A transport vehicle in which a loading platform (2) that can be dumped by a hydraulic cylinder (1) is pivotally supported on a slide frame (3) and the loading platform (2) is mounted so as to be movable in the longitudinal direction of the machine body. In the above, the support frame plate (4) connected to the other end side of the hydraulic cylinder (1) is erected so as to be movable back and forth with respect to the inner frame (6) of the traveling body (5), and is fixed at the front and rear position. A stop pin (7) capable of being engaged is detachably engaged with the support frame plate (4), and a locking body (8) on the fuselage side is freely engageable with the loading platform (3). A loading platform fore-and-aft adjustment device.