JPH0741670Y2 - Hinge cover for dump bed - Google Patents

Description

[Detailed description of the device]

[0001]

[Industrial field of application] The present invention is applied to a dump truck.
The present invention relates to an improvement of a hinge cover that protects a hinge bearing portion of a rear side plate that opens and closes according to the inclination of a dump truck that is dumped from soil.

[0002]

2. Description of the Related Art In a dump truck for carrying earth and sand, the loading platform is largely dumped in order to expel the loaded loading and unloading soil. The side plate is pivoted by the hinge bearing with a stopper lever, but to prevent the hinge shaft of the bearing part from rusting and becoming difficult to rotate due to the dust discharged on this part sprinkling, it is necessary to first rotate. The hinge cover of the dump truck of Japanese Patent Application No. 3-80625 filed by the applicant of the present application is proposed.

That is, in the cited example, the cover to be attached to the bearing portion of the hinge is made of a flexible rubber or synthetic resin as a whole, and one end has a tubular portion, the other end has a tongue piece, and a semi-cylindrical shape with the lower side opened between them. The bulging bellows has a structure in which an elastic wire such as a piano wire is installed inside the ridges of the folds of the bulging bellows.In use, insert the cylinder into the stopper lever of the hinge bearing and insert the tongue into the bearing side. Then, the bearing is covered with the bulging bellows to protect the bearing by pressing down the stopper lever and engaging the stopper lever.

[0004]

The conventional device shown in the cited example is a bulge containing an elastic wire when the loading platform dumps the earth and sand, and when the earth and sand to be ejected is sprinkled on the hinge bearing portion. The bellows part wraps and protects the bearing part, but since the amount of earth and sand is large and it is a heavy object, the bulging bellows part is crushed and deformed, the bearing part is exposed and the sand and sand are directly sprinkled, and There are drawbacks such as hindering smoothness, accelerating rusting, and bulging bellows that repeatedly deform and cannot be used immediately without being restored.

[0005]

DISCLOSURE OF THE INVENTION The present invention has solved the above-mentioned drawbacks by ensuring that the hinge cover is formed into a plate-like box shape and is not deformed even when receiving a large amount of heavy earth and sand, so that the hinge bearing can be secured. A hinge is attached to the lower edge of one side of the case body of a hollow semi-disc shape that is intended to protect and is made of a plate-like body of rubber, metal, plastic, etc., and covers the hinge bearing of the dump truck. A semi-circular cutout that receives the shaft is provided, and a rubber tubular bag that wraps the bearing claw inside is made to project from one side of the peripheral surface of the case body, and the opposite side of the tubular bag. A rubber tube opening that penetrates the stopper lever of the hinge shaft is attached to the peripheral surface side of the so as to open it, and the notch is inscribed with a rubber ring that is inserted into the hinge shaft and serves as an inner lid. It has a structure designed to do so.

[0006]

In use of the present invention, the pipe portion of the present invention in which the notch is formed on the axial side of the rear side plate on the stopper lever for engaging and pressing the hinge shaft of the hinge bearing of the dump truck is shown in FIG.
As shown in FIG. 2, if the stopper lever is tilted as shown in FIG. 2, the bearing claws of the stopper lever rotate to hold the hinge shaft, and at the same time, the case body of the present application is
Completely cover the hinge bearing part.

In this case, the projecting portion of the claw base of the hinge bearing portion is fitted and stored in the flexible tubular bag portion so that the case body is not completely covered. Furthermore, the attached rubber ring is easily inserted and removed through the hinge shaft by several cuts on the circumference, and when the semi-circular notch is fitted on the hinge shaft, the rubber ring is hinged. It serves as an inner lid of the bearing part and closes the gap of the shaft insertion part to prevent dirt and sand from entering.

As described above, in normal use, the hinge bearing is completely covered by the case body, the gap between the hinge shaft insertion portions is completely closed, and the case body has rigidity and is crushed by the weight of earth and sand. Since it does not exist, the hinge bearing part can be protected from earth and sand even after repeated use.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention is designed to be detachably attached to a hinge bearing portion of a dump truck carrier 11 of a dump truck. In use, the hinge bearing 12 is always supported to protect the hinge bearing 12. 1, a case body 1 having a hollow semi-disc shape is formed of a plate body of rubber, metal, plastic or the like, and a semi-circular cutout portion 2 is provided on a lower edge of one side of the case body 1. The rubber tubular bag portion 3 was projected on the side surface of the circumferential surface, the rubber pipe mouth portion 4 was opened on the other side surface, and the rubber annular ring 5 serving as the inner lid of the cutout portion was attached. It is structured.

The Nao rubber ring 5 has several cuts 6 on its inner circumference.
Is inserted in the shaft so that the shaft can be easily attached to and detached from the shaft, and is fitted in advance to the hinge shaft 13 held by the hinge bearing 12 of the dump carrier 11. 15 is a stopper lever 1
Stopper lever 1 with slidable bearing claws fixed to 4
4, which holds the hinge shaft 13 when the rear side plate 16 is attached to and detached from the dump carrier by the fan-shaped operation of 4, and is always fitted with the hinge bearing 12 and is rotated by the stopper lever 14 by the bearing claw 15. When the hinge shaft 13 is held and the rear side plate is used as a so-called tilt, at the same time, the case body 1 of the present invention, which is engaged with the stopper lever 14 by inserting the tube mouth portion 4 from the inside, covers the hinge bearing portion. Since the tube opening portion 4 is made of rubber, it can be adapted to the stopper lever to be inserted and can cope with some movement. The projecting portion of the base of the bearing claw is accommodated in the flexible rubber tubular bag portion 3 of the case body, and the cutout portion 2 is fitted along the circumference of the hinge shaft.
The rubber ring 5 fitted in advance to the shaft is used as an inner lid to cover the gap between the shafts.

That is, the case body opens and closes with the operation of the bearing claws 15 following the opening / closing operation of the stopper lever 14, and the hinge bearing is completely covered at all times to remove and protect the earth and sand at the time of dumping the cargo bed and the case body is rigid. There is no crush,
The bearing part can be protected by using it without deformation even in repeated dumping action. The shape of the hinge bearing portion is not necessarily limited to the above embodiment, but the case body can be covered with a slightly modified hinge bearing portion.

[0012]

According to the hinge cover of the present invention, in protecting the hinge bearing of the dump truck from the earth and sand, the case body is a semi-disk shaped box body, so that the bearing portion of any shape is not restricted by its outer shape. Since the whole is covered, the rubber ring also serves as an inner lid in the gap of the shaft insertion part to completely prevent the ingress of earth and sand and protect the bearing part, and the case body is rigid and does not deform and the dump truck repeatedly dumps. It has the effect that it can withstand operation.

[Brief description of drawings]

FIG. 1 is a perspective view of the structure of the present invention.

FIG. 2 is a perspective view of a rubber ring according to the present invention.

FIG. 3 is a perspective view of a covered and used state of the present invention.

FIG. 4 is a perspective view of the present invention when the bearing portion is opened.

[Explanation of sign]

 1 Case body 2 Notch part 3 Cylindrical bag part 4 Pipe mouth part 5 Rubber ring 6 Cut line 12 Hinge bearing 13 Hinge shaft 14 Stopper lever 15 Bearing claw

Claims (1)

[Scope of utility model registration request] 1. A semicircular notch for receiving a hinge shaft is provided at a lower edge of one surface of a hollow semi-disk shaped case body intended to cover a hinge bearing of a dump truck, and one of the peripheral surfaces of the case body is provided. A rubber tubular bag that wraps the bearing claw inside is made to project from the side, and a rubber tube opening that penetrates the stop lever of the hinge shaft is attached to the peripheral side opposite to the tubular bag. A hinge cover for a dump truck, wherein the hinge cover is opened, and a rubber ring serving as an inner lid of the hinge shaft is inserted into the cutout portion so as to be inscribed therein.