JP2553948Y2 - Cavity trock device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a cab-tilt lock device for fixing a cab of a vehicle equipped with a tilt cab to a chassis.

[0002]

2. Description of the Related Art In vehicles equipped with a tilt cab,
When the cab is to be lifted, the lock handle 5 is first turned from the lock position A to the position B as shown by an arrow in FIGS. By this operation, the other end 6 of the lock handle 5
Moves from the C position to the D position indicated by the arrow, the E portion of the link assembly 7 rotates to the F position indicated by the arrow, and the pin 8 provided at the other end of the link assembly 7 moves to the G position indicated by the arrow. Moving. Therefore, the pin 8 is released from the hook 9 fixed to the cab mount cross member 11 via the cab mount bracket 10.

As a result, the lock of the tilt cab is released, and the cab can be tilted as shown in FIG. 2 around a tilt hinge (not shown) forming a front cab mount.

At this time, in order to reduce the operating force by balancing the weight of the cab, the cab is urged upward by a not-shown torsion bar provided on the hinge portion.
The hook portion of the safety hook 15 and the hole 16 formed in the cloak bracket 10 are engaged with each other to prevent the tilting from starting. The engagement between the hook portion of the safety hook 15 and the hole 16 of the cloak bracket 10 is performed by the safety hook 1.
The operation unit 5 is operated and released, and the cab handle 17 is used to tilt the cab.

[0005]

[Problems to be solved by the invention] However, FIGS.
As shown in the figure, in the conventional safety hook 15, since the operation unit to which a hand is hung at the time of operation protrudes 8 to 10 cm downward from the hook unit, the operation unit becomes a protrusion when the cab is lifted, and when the cab is lowered. There is a problem with safety such as the operation unit hitting the head. The present invention provides a cab-tilt lock device having a safety hook that does not cause a problem such that the operation unit does not become a protrusion even when the cab is raised and the operation unit hits the head when the cab is lowered. The purpose is.

[0006]

According to the present invention, the safety hook is made of a metal plate, and has a mounting hole serving as a pivot point at one end and a hook portion at the other end. In addition, an operation portion that is bent substantially at right angles to the hook portion and does not project from the lower end portion of the hook portion is integrally formed between the attachment hole of the safety hook and the hook portion.

[0007]

The operation section does not become a projection even when the cab is raised, and the operation section does not hit the head when the cab is lowered. In addition, it is easy to rotate the safety hook about the mounting hole by holding the operation portion formed by bending the hook at a substantially right angle to the hook portion. Further, the safety hook has a hook portion and an operation portion integrally formed of a metal plate, and can be easily manufactured by punching and bending.

[0008]

In FIG. 1, a safety hook 20 is made of a metal plate, and has a mounting hole 21 serving as a pivot point at one end and a hook 22 at the other end. An operation portion 23 that does not protrude from a lower end portion B of the hook portion 22 is integrally formed at an intermediate portion A between the attachment hole 21 of the safety hook 20 and the hook portion 22.
The operating portion 23 is formed by bending the intermediate portion A and the hook portion 22 at a substantially right angle.
0 is easily manufactured by punching and bending.

The operation part 23 includes a mounting hole 21 and a hook part 22.
Is provided so as not to protrude from the lower end portion B of the hook portion 22, so that the operating portion 23 does not become a projection even when the cab is raised, and when the cab is lowered, the operating portion 23 is And the safety is improved. Further, since the operation portion 23 is formed by bending the hook portion 22 at a substantially right angle with respect to the hook portion 22, it is easy to rotate the safety hook 20 around the mounting hole 21 by holding it by hand.

[0010]

[Effect of the invention] The operation part is located between the mounting hole and the hook part.
It is provided so that it does not protrude from the lower end of the hook, so that the operating part does not become a protrusion even when the cab is raised, and there is no inconvenience such as the operating part hitting the head when lowering the cab, and it is safe. The performance is improved. Further, since the operating portion is formed by being bent substantially at a right angle to the hook portion, it is easy to hold the hand and rotate the safety hook around the mounting hole. In addition, since the hook portion and the operation portion are integrally formed of a metal plate, the safety hook can be easily and inexpensively manufactured by punching and bending.

[Brief description of the drawings]

FIG. 1 is a perspective view of a safety hook showing one embodiment of the present invention.

FIG. 2 is a perspective view of a vehicle equipped with a conventional tilt cab at the time of tilt cab.

FIG. 3 is a front view showing the entire conventional cab lock device.

FIG. 4 is a front view showing details of a conventional cab lock device.

FIG. 5 is a perspective view of a conventional safety hook.

[Explanation of symbols]

 5 Lock Handle 8 Pin 9 Hook 20 Safety Hook 21 Mounting Hole 22 Hook 23 Operation Unit

Claims (1)

(57) [Scope of request for utility model registration] 1. A cab-tilt lock device comprising: a cab fixed to a chassis of a vehicle; a lock handle for releasing a lock of the cab; and a safety hook for preventing the cab from starting to tilt by a torsion bar. The hook is made of a metal plate, and at one end thereof, a mounting hole serving as a pivot point is formed, and at the other end, a hook portion is formed, and between the mounting hole of the safety hook and the hook portion. A cab-tilt lock device, wherein an operating portion which is bent substantially at right angles to the hook portion and does not protrude from a lower end portion of the hook portion is integrally formed.