JPH0623505Y2 - Stay device for tilt-cab - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a stay device for a tilt-cab of a vehicle.

[Prior Art] As disclosed in Japanese Utility Model Laid-Open No. 60-114075, in a cabin-over type vehicle, the cabin is tilted forward around the tilt axis of the vehicle frame to maintain the engine. The state of defeating the cab is
The stay connected between the bottom wall of the cabin and the vehicle frame is held by being extended by the locking member.

To return the cabin to its original position, release the locking member directly attached to the stay with your right hand, while holding your hand on the grip of the cabin with your left hand and gently pulling down on the cabin.

However, since the stay is connected between the bottom wall inside the side wall of the cabin and the vehicle frame, an operator bends the upper half of the body to the lower side of the cabin to release the locking member. Have to operate. In such an unstable work, if the lock member is suddenly released or the operator stumbles against the intention of the operator and the return movement of the cabin becomes uncontrollable, the operator may not be able to control the cabin. There is a risk of getting stuck on the underlay or getting your hands caught.

On the other hand, when tilting the cabin forward, release the locking mechanism that locks the rear part of the cabin to the car frame, grasp the grip of the cabin with your left hand, and pull the safety lever toward you with your right hand, and then between the cabin and the chassis. By a spring force of a known torsion bar interposed in the cab, the cab rotates about the tilt axis to a certain angle (the rear part of the cab is pushed up). But,
The cabin does not go up any further, so put your hand on the grip and push the cabin up to the specified tilt angle, and at the same time, lower the lower stay so that the stay is in the extended state (actually a state where it bends slightly to the opposite side). Push down with your right hand and urge the locking member to work. In this case as well, the operator must bend the upper half of the body under the cabin to work, and if the hand slips away from the grip or the stay is not fully extended to the extended state, the cabin may be returned and injured. There is.

[Problems to be solved by the invention] In view of the above-mentioned problems, an object of the present invention is that the operator does not have to bend down to the lower side of the cabin, and the cabin is pushed up with both hands and the stay is actively extended. SUMMARY OF THE INVENTION It is an object of the present invention to provide a stay device of a tilt-cab, which can be safely operated by operating the lock member.

[Means for Solving the Problem] In order to achieve the above object, in the structure of the present invention, a bendable stay is connected between the bottom wall of the cabin and the vehicle frame, and the stay is supported by a portion near the vehicle frame side and the side wall of the cabin. A remote control cable for transmitting a rotational force for urging the stay in a straight extending direction is connected between the assist lever and the assist lever.

[Operation] When tilting the cabin forward, hold the grip and push up the rear part of the cabin, and at the same time push up the assist lever installed on the side wall of the cabin, the remote control cable is pulled and the lower stay is pulled up to the vehicle frame. The stay is extended by being tilted forward around the spindle of. Therefore, even if the operator does not go under the cabin to extend the stay, the cabin can be safely tilted forward.

[Embodiment of the Invention] As shown in FIG.
It is supported by 7 so as to be tiltable forward with respect to the vehicle frame 13.
When the cabin 2 is tilted forward, the extendable or bendable stay 10 is in an extended state, and this extended state is locked by a locking member described later. The stay 10 is composed of an upper stay 10a and a lower stay 10b which are flexibly connected by a pin 16, and the upper end of the upper stay 10a has a pin 9 at its upper end.
Is connected to the bracket 8 of the bottom wall 18 of the casing 2. The lower end of the lower stay 10b is supported by the bracket of the vehicle frame 13 by the support shaft 14. A grip 3 made of steel bar curved in a U shape is supported on the lower edge of the side wall of the casing 2,
A V-shaped assist lever 5 is rotatably supported by a support shaft 6 adjacent to the grip 3.

A remote control cable 19 is connected between the assist lever 5 and the lower stay 10b. As is known, the remote control cable 19 is formed by inserting an inner cable into a flexible outer tube so as to be slidable in the axial direction. One end of the outer tube is fixed to the bracket 7 at the lower edge of the side wall of the casing 2, and the other end is fixed to the bracket 15 of the vehicle frame 13. On the other hand, one end of the inner cable 19a is attached to the assist lever 5 by a pin 4
And the other end is connected to the lower stay 10b by a pin 12.

As shown in FIG. 2, the stay 10 is made of steel having an inverted U-shaped cross section (see FIG. 4), and is inserted into the lower stay 10b through the lower end of the upper stay 10a and is flexibly connected by a pin 16. It The locking member 26 is rotatably supported by the support shaft 25 between the grooves 29 formed by cutting the upper wall of the lower end portion of the upper stay 10a. Upper stay 10a and locking member 2
The lock member 26 is urged to rotate in the clockwise direction in FIG.
6a is the upper edge 3 of the lower stay 10b when the stay 10 is extended.
The upper stay 10a and the lower stay 10b are locked by engaging with No. 2 (see FIG. 1) in a straightly extended state.

In order to remotely operate the locking member 26, an inner cable 23a of the remote control cable 23 is connected to the lower end of the locking member 26. Outer tube is a bracket 24
It is fixed to the lower stay 10b by. As shown in FIG. 3, the other end of the outer tube is fixed to a bracket 22 connected to the assist lever 5. Inner cable 23a
The other end of is connected to a release lever 31 supported by a bracket 21 on a bracket 22.

Next, the operation of the stay device for the tilt-cab according to the present invention will be described. By operating the assist lever 5 and the release lever 31 arranged at the lower edge of the side wall of the cabin,
An operator can push up and pull back the cabin 2 on the outside of the vehicle body.

When the cabin 2 is tilted forward, when the locking mechanism between the rear portion of the cabin and the vehicle frame 13 is released, the well-known torsion bar pushes the rear portion of the cabin up to a certain angle. That is, the casing 2 rotates counterclockwise in FIG. 1 about the tilt shaft 17. Then, when the assist lever 5 is rotated counterclockwise from the state shown in FIG. 3 around the support shaft 6 while holding the hand on the grip 3 and raising the cabin 2, the inner cable 19a of the remote control cable 19 is When pulled, the lower stay 10b shown in FIG. 2 is rotated about the support shaft 14 in the extending direction, that is, in the counterclockwise direction.

When the stay 10 is straightened, the upper edge 3 of the lower stay 10b is
2 hits the lock member 26, and the lock member 26 has a spring 27.
It rotates in the counterclockwise direction about the support shaft 25 against the force of, and is locked when it engages with the notch 26 above the notch 29 of the upper stay 10a. Since the upper stay 10a and the lower stay 10b have an inverted U-shaped cross section as shown in FIG. 4, the upper stay 10a and the lower stay 10b do not largely bend to the opposite side.

When returning the camb 2, first place a hand on the grip 3 and push up the camb 2 a little, and also move the assist lever 5 to the support shaft 6
Rotate clockwise around the
pull. The upper stay 10a and the lower stay 10b extend straight, and at the same time, the locking of the locking member 26 is released.

Then, while continuing to operate the assist lever 5 and the release lever 31 in the same direction and pushing down the casing 2, the lower stay 1
0b is pushed by the inner cable 19a and is rotated clockwise around the support shaft 14, and the upper stay 10a and the lower stay 10b are bent into a> shape.

As described above, the operator does not have to bend down to the lower side of the cabin 2 and can perform the tilt operation of the cabin 2 in a stable posture.

[Advantage of the Invention] As described above, the present invention connects a bendable stay between the bottom wall of the cabin and the vehicle frame, and installs the stay between the vicinity of the vehicle frame side of the stay and the assist lever supported on the side wall of the cabin. Since the remote control cable that transmits the rotational force that urges in the direction of straight extension is connected, the operator does not have to bend down to the lower side of the cabin to push up the cabin, and work safely and comfortably. be able to. In other words, when the cabin is tilted forward, the spring force of the torsion bar pushes up the rear portion of the cabin 2 to a certain extent, but if the grip is raised further and the cabin is pushed up at the same time and the assist lever is operated at the same time, the lower stay moves forward. Since the stay is extended, the stay is extended and straightened, and the locking member automatically operates, the work is easy and very safe.

[Brief description of drawings]

FIG. 1 is a side view showing a schematic structure of a stay device of a tilted cabin according to the present invention, FIG. 2 is a side view showing a stay in a state where the cabin is almost returned, and FIG. 3 is a cabin when the cabin is returned. FIG. 4 is a side view showing the assist lever at the lower part of the side wall of FIG. 4, and FIG. 4 is a front sectional view of the locking device for the stay. 2: Cab, 3: Assist lever, 10: Stay, 1
3: Car frame, 16: Pin, 19: Remote control cable, 2
6: Lock member

Claims (1)

[Scope of utility model registration request] 1. A bendable stay is connected between a bottom wall of a cabin and a vehicle frame, and a stay is urged in a straight direction between a portion near the vehicle frame side of the stay and an assist lever supported on the sidewall of the cabin. A stay device of a tilt-cab, which is characterized in that a remote control cable for transmitting a rotating force to be connected is connected.