JPH0516718A - Movable deck stopper mechanism for vehicle for transporting automobile - Google Patents

Abstract

PURPOSE:To carry out lock and release of the lock for a movable deck at a prescribed position automatically and surely. CONSTITUTION:When a stopper pin arranged on the side surface of a movable deck 12 is pulled against a spring 32, by a raising/lowering rope 22 for suspending the movable deck 12, and a pulling force is applied, lock is released by retracting a stopper pin 34. When the pulling force of the raising/lowering rope 22 is loosened when the movable deck descends on a floor stopper 38, the stopper pin 34 is projected by the spring 32, and engaged with a stopper receiver 36, and clocked automatically. If the raising/lowering rope 22 is pulled, the clock is released.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a movable deck stopper mechanism for an automobile carrying vehicle.

[0002]

2. Description of the Related Art Usually, a movable deck of a vehicle for transporting an automobile is arranged so that the gate side of the vehicle at the rear of the vehicle is a free end so that the movable deck can swing freely. When it is transported, it is the upper deck in the upper position.

When loading and unloading automobiles on the lower deck, the movable deck must be fixed at a position higher than the position where the vehicle is running.

Such driving of the movable deck is usually performed by pulling the lifting wires attached to both ends in the width direction of the movable deck by an elevating device composed of a hydraulic cylinder device or a winch.

Further, when fixing the movable deck at a predetermined angular position, the movable deck is temporarily fixed to a floor stopper arranged on the body side frame in correspondence with the predetermined angular position, and then moved by a square screw bolt. Some also fix the deck.

Further, there is one in which a floor retainer which abuts the upper surface of the free end of the movable deck is attached to a rear gate also serving as a loading passage plate facing the free end of the movable deck, and the free end is fixed by the floor retainer.

[0007]

The former fixing method using square screw bolts has an advantage that the movable deck can be integrated with the side frame so that the rigidity of the body can be increased and the fixing can be surely performed. It is easy to forget to tighten or loosen the screw bolt, and in this case, the body may be damaged by an erroneous operation. There is also a problem that the square screw bolt is also damaged.

The latter method using the floor retainer is advantageous in that the floor retainer is attached to the rear gate, so that it can be released and set when the rear gate is opened and closed so that it will not be forgotten and the workability will be good. However, it is difficult to securely fix it like a square screw bolt, and since the floor retainer is attached to the rear gate, there is a problem that this becomes an obstacle when loading the vehicle.

Further, there is a problem that the body is damaged when the movable deck is accidentally raised while the rear gate is closed.

Further, as a problem common to both the fixing method using the square screw bolts and the fixing method using the floor retainer, there is another safety device in case the lifting wire is cut during the lifting operation of the movable deck. There is also the problem that it must be provided.

The present invention has been made in view of the above conventional problems, and the stopper can be released and set with good workability and without forgetting.
Further, it is another object of the present invention to provide a movable deck stopper mechanism for an automobile carrying vehicle in which damage to the body or the like due to an erroneous operation does not occur.

Another object of the present invention is to provide a movable deck stopper mechanism for an automobile carrying vehicle that does not require a separate safety stopper in case the lifting wire is cut.

[0013]

According to the present invention, an end on the loading / unloading side of an automobile is a free end, and the end on the opposite side is pivotally supported, and the free end side is suspended by a lifting rope. In the stopper mechanism for fixing the movable deck whose inclination angle is variable to a predetermined angle position, the movable deck is arranged near the free end of the movable deck, and the base end is connected to the movable deck side end of the lifting rope. , A stopper pin whose tip can freely project a certain distance and is urged in a tip protruding direction by a spring, and a movable body side frame near the swing locus due to a change in the inclination angle of the movable deck of the stopper pin tip. A stopper receiver that is provided at a position corresponding to a predetermined angle of the deck and that engages with the tip of the stopper pin at the predetermined angle position, and the movable deck swings from above to the predetermined angle position. When you come, this contact from below the floor stopper for positioning the movable deck in a predetermined angular position, by providing, is to achieve the above object.

Further, the stopper receiver is located below the inclined surface and an inclined surface which abuts against the tip of the stopper pin and pushes the stopper pin when the stopper pin descends. You may make it provide with the notch which a front end fits in.

Further, the stopper receiver may be provided at a position other than the position corresponding to the floor stopper.

[0016]

According to the present invention, the stopper pin for fixing the movable deck at the predetermined angle position is projected by the spring in the tip projecting direction, that is, the direction in which it engages with the stopper receiver, and at the same time, the lifting rope acts to resist the spring. Since the pulling force is applied to the lifting rope by the lifting device when moving the movable deck up and down, the stopper pin automatically comes out of the stopper receiver and the lock is released. Done. Also, when the movable deck moves to a predetermined angle position and comes into contact with the floor stopper from above, the lifting rope loosens, so the stopper pin protrudes by the spring, and its tip engages with the corresponding stopper receiver, The lock will be set.

Further, even if the lifting rope is cut, the stopper pin is projected by the spring at the moment when the lifting rope is cut, so that it easily engages with the stopper receiver below the position at the time of cutting. Then, it is possible to prevent the movable deck from further dropping.

Particularly, as described in claim 2, when the stopper pin descends, the stopper receiver is provided with an inclined surface that abuts against the tip of the stopper pin and pushes the stopper pin. The pin easily engages with the stopper receiver without being damaged.

Further, as described in claim 3, by providing a large number of stopper receivers other than the positions corresponding to the floor stoppers, when the rope for lifting and lowering is cut, the stopper immediately before the drop speed of the movable deck does not increase. The fall of the movable deck can be stopped by engaging with the receiver.

[0020]

Embodiments of the present invention will be described below with reference to the drawings.

A vehicle 10 for carrying an automobile according to this embodiment.
The upper deck is a movable deck 12.

This movable deck 12 has a body 1 on the front end side.
4 and the rear end side is a free end.
A rear gate 16 is arranged facing the rear end of the movable deck 12. The rear gate 16 also serves as a road plate for loading and unloading automobiles.

The lower deck 1 of this vehicle 10 for transporting automobiles
An elevating drive device 20 including a hydraulic cylinder 20A is arranged on the lower side of 8 (see FIG. 3).

One end of an elevating rope 22 is engaged with the side surface of the movable deck 12 near the free end, and the elevating rope 22 is connected to the hydraulic cylinder 2 of the elevating drive device 20.
The movable deck 12 is moved up and down (swinged) by being pulled by 0A.

Reference numeral 14A in FIGS. 1 and 2 designates a side frame as a part of the body 14 which is provided upright on the both sides of the swing range of the movable deck 12 at the rear portion of the vehicle 10 for transporting an automobile.

The lifting rope 22 is used for the lower deck 18
Sheave 24A attached to the side surface of the vehicle, fixed sheave 24 attached to the front upper end of the side frame 14A
B, a fixed sheave 24 disposed near the lower end of the side frame 14A and substantially immediately below the fixed sheave 24B.
C, through fixed sheaves 24D arranged on both sides of the base end portion of the hydraulic cylinder 20A, and movable sheaves 24E driven in the vehicle front-rear direction by the hydraulic cylinders 20A, wire clips 26A on both sides of the hydraulic cylinder 20A,
It is fixed by a turnbuckle 26B and a shackle 26C.

As shown in FIGS. 3 and 4, the movable sheave 24E driven by the hydraulic cylinder 20A is rotatably attached to the cylinder rod 20B of the hydraulic cylinder 20A in a horizontal plane. Movable sheave 2
4E has an upper and lower two-stage structure corresponding to the left and right lifting ropes 22 of the vehicle.

The cylinder rod 20B to which the movable sheave 24E is attached is guided by a guide rail 28 which is long in the vehicle front-rear direction.

The fixed sheaves 24D arranged on both sides of the base end of the hydraulic cylinder 20A are rotatably arranged in a horizontal plane like the movable sheave 24E.

The fixed sheave 24C attached to the lower end of the side frame 14A is the fixed sheave 2 at the upper end.
4B to the fixed sheave 24D to change the direction of the lifting rope, and has a rotation axis in the vehicle longitudinal direction.

Movable deck stopper mechanism 3 according to the present invention
As shown in FIG. 5 and FIG. 6 in an enlarged manner, 0 is disposed on the side surface near the free end of the movable deck 12, the end of the lifting rope 22 on the movable deck side is connected, and the tip is A stopper pin 34 that can project a fixed distance and is urged by a spring 32 in a tip projecting direction, and the side frame 14A near the swing locus of the tip of the stopper pin due to a change in the inclination angle of the movable deck 12. A stopper receiver 3 provided at a position corresponding to a predetermined angle of the movable deck 12 and engaging with the stopper tip at the predetermined angle position.
6 and FIG. 2, when the movable deck 12 swings to a predetermined angular position from above, a floor stopper 38 that contacts the movable deck 12 from below and positions the movable deck 12 at a predetermined angular position. And are provided.

The stopper pin 34 is connected to the end portion of the lifting rope 22 via a shackle 38 and a lifting stopper 40, as shown in an enlarged view in FIGS. .

Here, the base end of the stopper pin 34 is screwed into the lifting stop fitting 40 and fixed by the split pin 42. The front half of the stopper pin 34 is axially slidably supported by fixed guides 44A and 44B, and these fixed guides 44A and 44B are fixed to the side surface of the movable deck 12 via a stay 46. .

The fixed guides 44A and 44B are separated from each other in the axial direction of the stopper pin, and a retaining collar 48 is fixed to the stopper pin 34 at a position between them.

The stopper pin 34 is provided between the collar 48 and the fixed guide 44A on the front side (left side in the figure).
The spring 32 for urging the spring in the direction in which the tip protrudes is arranged. The distance between the fixed guides 44A and 44B is
In a state in which the stroke of the stopper pin 34 is restricted and the pulling force is not acting on the lifting rope 22,
That is, when the stopper pin 34 is projected by the spring 32, the tip of the stopper pin 34 engages with the stopper receiver 36, and when the pulling force acts on the lifting rope 22, The pin 34 is adapted to be pulled into the fixed guide 44B against the force of the spring 32.

The stopper receiver 36 has a stopper pin 3
On the 4 side, the inclined surface 36A and the vertical surface 3 continuous therebelow
6B and the stopper pin 3 formed on the vertical surface 36B
It has an engagement hole 36C for four engagements.

The inclination angle of the inclined surface 36A is such that when the stopper pin 34 descends from above and comes into contact with the inclined surface 36A, the stopper pin 34 is pushed against the spring 32 by a horizontal component force. Has been able to.

As shown in FIG. 2, the stopper receivers 36 are attached to the lower deck 18 at two positions, that is, a position when the vehicle is loaded on the lower deck 18 and a position when the vehicle is running.

The floor stopper 38 is arranged corresponding to the positions of these stopper receivers 36,
When the stopper pin 34 moves to the position of the stopper receiver 36 at a predetermined position and reaches the predetermined angle position, the stopper pin 34 comes into contact with the lower surface of the movable deck 12 and supports it from below.

The floor stopper 38 is adapted to project and retract below the movable deck 12 via the operating rods 54A and 54B by the corresponding one-touch levers 52A and 52B.

Reference numeral 56 in FIG. 2 indicates a switch box, and the switch box 56 is the lifting drive device 2 described above.
The hydraulic pressure of the hydraulic cylinder 20A at 0 is controlled to expand and contract the hydraulic cylinder 20A.

Next, the operation of the apparatus of the above embodiment will be described.

In FIG. 2, when the movable deck 12 in the lowermost position in which automobiles are loaded is driven upward by the lifting drive device 20, the hydraulic cylinder 20A is moved from the position indicated by the solid line in FIG. The movable sheave 24E is extended until it comes to the position indicated by the chain double-dashed line.

The movable sheave 24E is guided by the guide rail 28 and goes straight, and the lifting rope 22 is pulled, whereby the movable deck 12 is pulled up to the uppermost position in FIG.

In the pulling up process, the pulling force is applied to the lifting rope 22, so that the stopper pin 34 is moved to the spring 3
Against 2, it is in the retracted position shown in FIG. Therefore, the stopper receiver 36 and the tip of the stopper pin 34 do not interfere with each other in the ascending process.

The movable deck 12, which has been once raised to the uppermost position, is in a state of being loaded on the lower deck 18 with a vehicle. Use upper or lower floor stoppers depending on the car to be loaded on the lower deck. This time, the lower floor stopper is used. For safety, first, the one-touch lever 52A is operated to cause the upper floor stopper 38 to project.

Therefore, the descending movable deck 12 comes into contact with the upper floor stopper 38 and cannot descend further, so that the lifting rope 22 is loosened.

Therefore, the stopper pin 34 is projected by the spring 32. At this time point, the stopper pin 34 is located at the position of the upper stopper receiver 36, so that the stopper pin 34 is fitted into the engaging hole 36C formed in the vertical surface 36B of the stopper receiver 36 to lock the movable deck 12. .

After the loading of the vehicle on the lower deck 18 is completed, the lifting rope is slightly pulled, the stopper pin 34 is pulled out from the stopper receiver 36, and the one-touch levers 52A and 52B are operated to set the upper floor stopper 38.
Is retracted, the lower floor stopper 38 is projected, and the movable deck 12 is further lowered.

Similarly to the above, when the movable deck 12 contacts the lower floor stopper 38, the stopper pin 34 is projected by the spring 32 and engages with the engaging hole 36C of the lower stopper receiver 36, Lock the movable deck 12.

In this embodiment, if the movable deck 12
When the lifting rope 22 is cut when the uppermost position is at the uppermost position, the pulling force of the lifting rope 22 disappears and the spring 3
The movable deck 12 drops with the stopper pin 34 protruding due to 2.

Therefore, when the stopper pin 34 projects, the inclined surface 36 of the stopper receiver 36 closest to the lower side of the stopper pin 34.
The tip of the stopper pin 34 collides with A.

Since the inclined surface 36A has an inclination angle such that the stopper pin 34 can be pushed in, the stopper pin 34 is pushed in by the action of the inclined surface 36A and contacts the lower vertical surface 36B. , Engagement hole 3
6C is projected and fitted by a spring 32. This prevents the movable deck 12 from falling and ensures safety.

As shown by the chain double-dashed line in FIG. 2, by disposing a large number of stopper receivers in the vertical direction in addition to the two stopper receivers 36, even if the lifting rope 22 is broken, It is possible to prevent this before the falling speed of the movable deck 12 becomes large, thereby improving safety.

Although the lifting rope 22 is pulled by the hydraulic cylinder 20A in the above embodiment, the present invention is not limited to this, and it may be pulled by other means such as a winch. May be. The rope 22 may be a wire rope or another rope.

Further, the mounting position of the lifting drive device 20 is not limited to the lower side of the lower deck 18.

Further, the floor stopper 38 is not limited to the embodiment, but may be any one as long as it can come into contact with the lower side of the movable deck 12 to loosen the rope.

Further, the structure of the stopper receiver 36 is not limited to the embodiment shown in the figure, and any structure capable of receiving the stopper pin 34 may be used.

[Brief description of drawings]

FIG. 1 is a side view showing an automobile carrying vehicle including a movable deck stopper mechanism according to the present invention.

FIG. 2 is a side view showing the movable deck stopper mechanism according to the embodiment of the present invention in an enlarged manner at the rear portion of FIG.

FIG. 3 is a plan view showing a main part of the lifting drive device of the embodiment.

FIG. 4 is an enlarged cross-sectional view taken along the line IV-IV in FIG.

FIG. 5 is an enlarged plan view showing a stopper pin and a stopper receiver of the movable deck stopper mechanism of the embodiment.

FIG. 6 is a side view of the same.

[Explanation of symbols]

10 ... Car transport vehicle, 12 ... Movable deck, 14A ... side frame, 16 ... Rear gate, 18 ... Lower deck, 20 ... Lifting drive device, 20A ... hydraulic cylinder, 22 ... Elevating rope, 30 ... Movable deck stopper mechanism, 32 ... spring, 34 ... Stopper pin, 36 ... stopper holder, 36A ... inclined surface, 36C ... engaging hole, 38 ... Floor stopper.

Claims (3)

[Claims] 1. An end on an automobile loading / unloading side is a free end,
Further, in a stopper mechanism for fixing a movable deck whose tilt angle is variable by being pivotally supported at the opposite end and suspending the free end side by a lifting rope at a predetermined angle position, the movable deck A stopper pin which is arranged in the vicinity of the free end of the movable rope, the movable deck side end of the lifting rope is connected to the base end of the movable rope, the distal end of which can be projected a fixed distance, and which is urged in the distal end protruding direction by a spring A stopper which is provided at a position corresponding to a predetermined angle of the movable deck of the body side frame near the swing locus due to a change in the inclination angle of the movable deck of the stopper pin tip, and which engages with the stopper pin tip at the predetermined angle position. When the receiver and the movable deck swings from above into a predetermined angular position, it abuts from below and positions the movable deck at a predetermined angular position. A movable deck stopper mechanism for automobile transportation vehicles that is provided with a floor stopper. 2. The stopper receiver according to claim 1,
When the stopper pin descends, it has an inclined surface that abuts against the tip of the stopper pin and pushes it in, and a notch that is located below the inclined surface and into which the tip of the stopper pin fits. Movable deck stopper mechanism for automobile transportation vehicles. 3. The stopper receiver according to claim 2,
A movable deck stopper mechanism for an automobile carrying vehicle, which is provided at a position other than the position corresponding to the floor stopper.