JP3307766B2 - Vehicle winch - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a winch mounted on the front and rear of a vehicle.

[0002]

2. Description of the Related Art For example, in an off-road four-wheel drive vehicle shown in FIG. 7, a winch 61 is disposed inside a front bumper 62. In the winch 61, a drum 64 is supported by a mounting bracket 63 fixed to a vehicle body so as to be rotatable forward and reverse by a drive mechanism (not shown).
A roller bracket 65 having a pair of left and right and upper and lower guide rollers 65a, 65b is fixed to and supported by the mounting bracket 63 in front of the drum 64. Then, the drum 64 is driven by a driving mechanism (not shown).
Is rotated, the pulling wire 66 wound around the drum 64 is fed forward from the space surrounded by the guide rollers 65a and 65b or wound around the drum 64.

A pair of left and right guide rollers 65a is provided in the vertical direction, and a pair of upper and lower guide rollers 65a is provided.
5b is provided at a position closer to the bumper 62 than the guide roller 65a, and is freely rotated by the pulling wires 66, respectively. For this reason, the drum 6 is viewed from the front by the two pairs of guide rollers 65a and 65b.
The pulling wire 66, which is arranged in a square with the center 4 as a center and is unreeled from the drum 64, receives a bumper 62 from a rectangular space surrounded by the guide rollers 65a and 65b.
Is drawn out forward through the bumper hole 62a formed in the above. Accordingly, even when the pulling direction of the pulling wire 66 swings up, down, left, or right, it is guided by one of the guide rollers 65a, 65b,
The drum 64 is always wound in a direction substantially perpendicular to the drum 64 without interfering with the edge of the bumper hole 62a of the bumper 62.

[0004]

Here, since the guide rollers 65a and 65b are provided, the winch 61 is elongated in the front-rear direction, so that the overall length of the vehicle is longer than that of the vehicle without the winch 61. turn into. In particular, when the winch 61 is provided at the front of the vehicle, FIG.
Since the radiator 68 is provided as shown in FIG.
There was a limit to arranging it behind, and the vehicle had to be long. Thus, by installing the winch 61 as compared with a vehicle not equipped with the winch 61, the length of the vehicle is increased. There are issues such as becoming.

Therefore, in the first aspect of the present invention, the roller bracket is normally detachable so that the roller bracket cannot be attached, and the roller bracket is attached only when the towing operation is performed. Further, according to the invention of claim 2, according to claim 1
According to the invention, the roller bracket is detachable, so that the towing operation is not performed when the roller bracket is not sufficiently attached.

[0006]

According to the first aspect of the present invention, there is provided a mounting bracket fixed to a front portion or a rear portion of a vehicle body.
In a winch provided with a drum attached to a mounting bracket and a guide roller for guiding a pulling wire drawn out of the drum , a winch outside the mounting bracket is provided.
A bumper having a bumper hole corresponding to the drum
And the guide roller is provided on a roller bracket, and the roller bracket is attached to the outside of the pump.
It is configured to be detachably attached to the surface so as to cover the bumper hole . According to a second aspect of the present invention, in addition to the first aspect of the present invention, a roller bracket is mounted by engaging a mounting pin with the vehicle body, and a detection switch that is turned on by the mounted mounting pin is provided on the vehicle body.

[0007]

According to the first aspect of the present invention, when the winch is used, the roller bracket is mounted on the vehicle body. Thus, in a normal state where the winch is not used, the vehicle can be kept short.

According to the second aspect of the present invention, the roller bracket is mounted on the vehicle body by the mounting pin. At this time, the detection switch is turned on by the attached mounting pin to detect the attachment. This prevents the towing operation from being performed with insufficient mounting.

[0009]

Embodiment 1 Embodiment 1 of the present invention will now be described with reference to FIGS. As shown in FIG. 1, a mounting bracket 2 fixed to a vehicle body is provided in front of a radiator 1 at a front portion of the vehicle, and a drum 4 around which a towing wire 3 is wound around the mounting bracket 2 is driven by a driving mechanism not shown. It is mounted and fixed so that it can rotate forward and backward. A front bumper 5 is mounted and fixed on the front surface of the mounting bracket 2, and a bumper hole 6 is formed in a central portion of the front bumper 5 corresponding to the drum 4.

A roller bracket 10 is mounted so as to cover the edge of the bumper hole 6. As shown in FIG. 2, the roller bracket 10 includes a horizontally long rectangular frame 11, and a mounting piece 13 having a mounting hole 12 for mounting the mounting bracket 2 is provided on the left and right sides of the frame 11. As shown in FIG. 3, the mounting bracket 2 is mounted on the mounting bracket 2 through an insertion hole 5 a formed in the front bumper 5 by screwing a mounting bolt 14 as a mounting pin and a mounting nut 15. Also, this frame 1
A pair of guide rollers 16 are mounted above and below the inside of the unit 1 so as to be freely rotatable in a substantially horizontal line. A pair of guide rollers 17 are mounted on the left and right of the front of the guide rollers 16 so as to be rotatable freely in a substantially vertical line. The pair of guide rollers 16 and 17 form a square when viewed from the front. And a wire outlet 18 is formed by these guide rollers 16 and 17. When the winch according to the first embodiment having this configuration is used, the pulling wire 3 wound around the drum 4 is fed forward from the wire outlet 18 so that the tip of the pulling wire 3 can be hung on the object to be pulled and pulled. Have been. On the other hand, when the winch is not used, the pulling wire 3 can be completely wound around the drum 4, the mounting bolt 14 is removed, and the roller bracket 10 can be removed from the mounting bracket 2. When the roller bracket 10 is not mounted, the cover 19 is mounted on the mounting bracket 2 with the mounting bolts 14 and the mounting nuts 15 so that the bumper hole 6 can be covered (see FIG. 4). If the head 14a of the mounting bolt 14 is made common to the head of a bolt (not shown) for mounting the wheel, the mounting operation of the mounting bolt 14 can be easily performed with one wheel wrench.

Further, as shown in FIG.
A switch bracket 20 is fixed to the rear surface of the mounting bracket 2 where the mounting bolt is to be mounted.
A detection switch 21 is provided opposite to the advance position 4. The detection switch 21 uses, for example, a limit switch or a micro switch.
When the detection switch 21 is on, the drum 4 can be driven to rotate, and when the detection switch 21 is off, the rotation of the drum 4 cannot be performed. When the distal end of the mounting bolt 14 further advances from the mounting nut 15 and advances to a sufficiently tightened predetermined mounting position, the distal end of the mounting bolt 14 presses the detection pin 21 a of the detection switch 21, The detection switch 21 is turned on.

Next, the operation of the first embodiment will be described. In a normal state where the winch is not used, the roller bracket 10 is removed, and the wire outlet 18 on the front surface of the front bumper 5 is closed by the cover 19 in FIG.
Has been in the state of. Thereby, the roller bracket 1
0 is longer than the length L
It is only short. In addition, by covering the front bumper 5 with a foreign material, the cover 4 is covered with the cover 19 to prevent the foreign matter from entering the front bumper 5.
And the traction wire 3 are protected.

When the winch is used, first, the cover 19 is removed from the front bumper 5 and the mounting piece 13 of the roller bracket 10 is mounted and fixed by screwing the mounting bolt 14 and the mounting nut 15 to the mounting bracket 2. I do. At this time, when the mounting bolt 14 is tightened to reach a state where the roller bracket 10 is sufficiently fixed, the tip presses the detection pin 21 a of the detection switch 21,
The detection switch 21 is turned on. As a result, the drum 4 can be driven and rotated. Therefore, by operating the winch switch, the drum 4 can be rotated to draw out and pull the pulling wire 3.

When the mounting of the roller bracket 10 is insufficient, the drum 4 does not rotate even when the winch switch is operated because the detection switch 21 is not turned on. This prevents the winch from operating with the roller bracket 10 in an insufficiently mounted state. This can prevent a failure or the like caused by starting the winch while the mounting state is insufficient.

In performing the pulling operation, the pulling wire 3 is guided by either the guide roller 16 or the guide roller 17 depending on the pulling direction, and is wound up in a direction substantially perpendicular to the drum 4.

As described above, in the first embodiment, since the roller bracket 10 is mounted only when the winch is used, the length of the vehicle body can be reduced in a normal state where the winch is not used.

<Embodiment 2> Next, Embodiment 2 of the present invention will be described with reference to FIGS. The winch of the second embodiment is one in which the attachment and detachment of the roller bracket is further facilitated as compared with the first embodiment. In order to make the main part common, the description of the common part is omitted or the same sign is used. Then, the different parts will be mainly described.

The roller bracket 40 has a horizontally long rectangular frame 41 and a flange 43 formed on the outer periphery thereof. The flange 43 is formed by lower and left and right fitting pieces 43a and upper mounting pieces 43b. At the center of the upper mounting piece 43b, a mounting pin 4 described later is provided.
4 is provided with a mounting hole 42.

The front bumper 35 is provided with a bumper hole 36. And this front bumper 35
A holding frame 50 is sandwiched by the front bumper 35 and is fixed to the mounting bracket 2 by mounting bolts (not shown). The holding frame 50 is provided with the bumper hole 36.
It is formed in a substantially U-shape along the lower edge and the left and right side edges, and the fitting piece 43a can be inserted into the holding frame 50 from above. In addition, an insertion hole 35a is provided in an upper portion of the front bumper 35,
It is provided so as to communicate with the second. Front bumper 3
As in the first embodiment, the switch bracket 20 is provided on the inner side of 5, and the detection switch 21 is provided to face the position where the mounting pin 44 advances. In the switch bracket 20, an elastic holding piece 51 made of a leaf spring is provided.
Is provided so that the mounting pin 44 can be sandwiched.

The mounting pin 44 has a head portion 44b at one end of the shaft portion 44a, which is in contact with the outer edge of the mounting hole 42, and a holding portion 44c held by the elastic holding piece 51 at the leading end. The distal end surface is formed as a pressing portion 44d for pressing the detection switch 21 described above.

In the second embodiment configured as described above,
When the winch is used, the fitting piece 43a of the roller bracket 30 is fitted into the holding frame 50 from above the front surface of the front bumper 35. Thereby, the roller bracket 3
0 is positioned and held at a predetermined mounting position of the front bumper 35. When the mounting pin 44 is pushed in from the mounting hole 42, the mounting portion 44c of the mounting pin 44 is held by the elastic holding piece. As a result, the roller bracket 30 is also prevented from coming out upward, and is attached by the holding frame 50. At this time, the mounting pin 4
The fourth pressing portion 44d operates the detection switch 21 to turn on the detection switch 21 and output a detection signal.

After the use of the winch, the pulling wire 3 (not shown) is wound around the drum 4 and the mounting pin 44 is pulled out against the elasticity of the elastic holding piece 51 to remove the roller bracket 40 upward. Can be.

As described above, in the second embodiment, similarly to the first embodiment, when the winch is not used, the roller bracket 30 can be detached, and the length of the roller bracket 40 can be reduced. It can be short in length. Further, since the detection switch 21 prevents the winch from being activated with the mounting state being insufficient due to the mounting failure of the mounting pin 44 or forgetting to install, the failure due to this can be prevented. . In particular,
In the second embodiment, the holding frame 50 is provided on the front of the front bumper 35.
Is provided, the fitting piece 43a of the roller bracket 30 is inserted and held in the holding frame 50, and the mounting operation can be performed by inserting the mounting pin 44 into the mounting hole 42. The mounting work of the bracket 30 can be facilitated. In a normal state where the winch is not used, a cover (not shown) can be attached to the bumper hole 36 in the same manner as the roller bracket 30.

The present invention relates to the above-described first or second embodiment.
However, the present invention is not limited to this, and can be implemented as follows, for example.

(1) In the first and second embodiments, the type in which the winch is built in the front bumper has been described. However, the present invention may be applied to a type in which the drum is provided so as to project from the front surface of the bumper, The present invention can also be applied to a type in which a drum is mounted on an upper surface of a bumper.

(2) The two pairs of guide rollers 16 and 17 provided on the roller bracket may be configured such that the front and rear mounting positions of the guide roller 16 and the guide roller 17 are reversed.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a first embodiment.

FIG. 2 is an exploded perspective view of a roller bracket.

FIG. 3 is a sectional view showing a mounting structure of a roller bracket.

FIG. 4 is a sectional view showing a state where a roller bracket is removed.

FIG. 5 is a cross-sectional view of a state where a roller bracket according to a second embodiment is removed.

FIG. 6 is a sectional view

FIG. 7 is a sectional view showing a conventional winch.

[Explanation of symbols]

 3 ... Towing wire 4 ... Drum 16 ... Guide roller 17 ... Guide roller 21 ... Detection switch 40 ... Roller bracket 44 ... Mounting pin (mounting bolt)

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B66D 1/54-1/82

Claims (2)

(57) [Claims] 1. A mounting bracket fixed to a front portion or a rear portion of a vehicle body.
Racket and drive attached to this mounting bracket
And a guide roller that guides a pulling wire drawn from the drum , the outer surface of the mounting bracket corresponds to the drum.
A bumper having a bumper hole is fixed, the guide roller is provided on a roller bracket, and the roller bracket covers the bumper hole with respect to an outer surface of the bumper.
A winch for a vehicle, wherein the winch is mounted so as to be detachable . 2. The vehicle according to claim 1, wherein the roller bracket is mounted by engaging a mounting pin with the vehicle body, and a detection switch which is turned on by the mounted mounting pin is provided on the vehicle body. winch.