JP2001233186A - Wheel stop device for automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wheel stop device for an automobile capable of being operated with no creeping under the automobile and preventing wheels from being moved even when large external force is applied while in use. SOLUTION: A pair of wheel passing grooves 2 corresponding to the span of the right and left wheels of the automobile are provided on a wheel stop frame 1. A wheel stop body 10 is inserted into each wheel passing groove 2. A pair of clamps 12 movable in the width direction are provided on the right and left of the wheel stop body 10, the clamps are connected by a toggle joint type link mechanism 13, and its connection point 14 is extended to the outside of the wheel stop body 10 and connected to a lockable connecting rod 31.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automobile wheel stopper used for a railway vehicle for transporting an automobile, a trailer, a tow truck, and the like.

[0002]

2. Description of the Related Art As a conventional wheel stopper, a wedge-shaped wooden piece or a light metal stopper having a slope is used on one side, but since a vehicle for transporting a car or a tow truck is narrow, it can be mounted from the side. It is difficult, and it is attached to and detached from the front or rear of the car so as to penetrate under the vehicle body to the position of the wheels.

[0003] Further, since a wedge-shaped wheel stopper is merely inserted between the carrier of the transporting vehicle and the wheel of the vehicle mounted thereon, the wheel stopper is disengaged by vibration during transportation, Serious accidents may occur.

[0004]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a highly safe automotive wheel stopper device which is easily detachable and does not come off accidentally once it is mounted. It is.

[0005]

In order to achieve the above object, in the wheel stopper device according to the first aspect of the present invention, a wheel passage groove 2 is provided in a wheel stopper frame 1 installed in a railway vehicle for transporting automobiles or the like. A wheel stopper main body 10 movable along the longitudinal direction of the groove is inserted into the wheel passage groove 2, and the wheel stopper main body 10 has a wheel passage groove protruding laterally of the wheel stopper main body 10. 2, a pair of clamps 12 that move in the width direction are provided, and these clamps 12 are connected to each other by at least one pair of toggle joint type link mechanisms 13 which are connected left and right or independently. The point 14 largely moves to the wheel stopping surface 11 side of the wheel stopping body 10 to obtain a stroke from a position where the pair of clamps 12 is pulled to a position slightly beyond the dead center. The operation rod 20 connected to the connection point 14 is provided with a lock mechanism 21 for locking the wheel stopper body 10 at a position beyond the dead center of the connection point 14.

According to a second aspect of the present invention, in addition to the configuration of the first aspect, the pair of clamps are connected by a set of toggle joint type link mechanisms.

According to a third aspect of the present invention, in addition to the above configuration of the first or second aspect,
The left and right clamps 12 are respectively connected to one end of one link 15a, 15b of each of two sets of toggle joint mechanisms 13a, 13b independent of left and right, and one end of the other link 16a, 16b is common to the wheel stopper body 10, respectively. And each of the intermediate connecting points 14a, 14b is connected to the common operating rod 2 by a common pin.
0 are connected with independent pins.

According to a fourth aspect of the present invention, in addition to the first, second, or third aspect of the present invention, the wheel stopper device further includes a pair of clamps 12 having a surface that abuts against a wheel passage groove wall surface. Has a hard rubber layer 17 having a high pressure resistance fixed thereto.

[0009] The wheel stopper device according to the fifth aspect of the present invention,
In addition to the configuration according to claim 2, 3, or 4, the lock mechanism is a support member in which the operating rod 20 or the connecting rod 30 that moves integrally therewith is fixed to the wheel stopper main body 10. The operating rod 20 or the connecting rod 30 is pivotally connected to the handle 22 outside the outer end 32 of the supporting member 31, and the handle is connected to the connecting point 14. The operation rod 20 or the connecting rod 35 is stabilized in a prone position, and the handle 22 is fixed to the outer end 32 of the support member 31.
The length of the connecting rod 30 and the supporting member 31 is such that when the wheel stopper body 10 is applied to the wheel, the position of the handle 22 is substantially immediately below the front or rear end of the wheel. The dimensions are as follows.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiment shown in FIGS. 1 and 2 is an embodiment including the invention described in claim 1, claim 2 or claim 4. The structure of one wheel will be described for convenience of explanation.

In FIG. 1 and FIG.
Is pre-installed on the carrier of an automobile transporting vehicle, and is usually a cast product or a press product such as a light alloy or a non-rust metal, but may be an engineering plastic product having high mechanical strength. The wheel stopper frame 1 includes a wheel stopper main body 1 in at least one wheel passage groove 2.
0 are fitted and these are movable and removable. The wheel stopper body 10 is formed with a wheel stopper surface 11 having an inclined surface or an inclined concave surface having a lower end edge side to be contacted with the wheel, and has a wedge shape in a side view).

A pair of clamps 12 are provided on both sides of the wheel stopper main body 10 to slide in the width direction of the wheel stopper main body 10, and a single toggle joint type link mechanism (hereinafter simply referred to as a link mechanism) for connecting these clamps. 13). This link mechanism 13 is provided at the connection point 1 in the middle.
Consists of two links 15, 16 with 4 and link 1
The other end of each of 5 and 16 is pivotally connected to the clamp 12, and an operating rod 20 is connected to the connecting point 14,
The wheel stopper body 10 protrudes from the rear end 17.

The operating rod 20 is moved in the forward direction of the wheel stopper main body 10, and the connecting point 14 of the links 15, 16 is largely bent, so that the pair of clamps 1
2 are close to each other, and the wheel stopper body 10 can freely move in the wheel passage groove 2. On the other hand, the operating rod 20 is
By pulling behind 0, the connection point 14 becomes the link 1
Near the line O connecting the pivots 18 and 19 of the clamps 12 to the pair of clamps 12, the pair of clamps 12 is most separated from each other, and the tip surfaces of the clamps 12 are pressed against the inner wall surface 3 of the wheel passage groove 2.

Since the surfaces of the pair of clamps 12 are formed as a hard rubber layer 17 having a large pressure resistance, they are firmly pressed against the inner wall surface of the wheel passage groove 2 without slipping. Clamp 12
Without the rubber layer 17 on the inner wall surface 3 of the wheel passage groove 2
Even if a rubber layer 17 is provided, it is an equivalent means. The connection point 14 stops when it slightly exceeds the dead point on the line O.

The lock mechanism 21 for locking the operating rod 20 slightly beyond the dead center has the following configuration. That is, the handle 22 is attached to the tip of the operation rod 20 by the shaft 2.
3, the base of the handle 22 is pivotable by 90 ° or 180 ° around a pivot 23, the one shown in FIG. 1 being a 90 ° pivot stroke, the end of that pivot stroke. In the position, the two abutment surfaces 2 where the base 24 of the handle 22 abuts the rear end face 18 of the body 10
5 and 26 are provided, the dimensions of these abutment surfaces 14 and 15 from the pivot 23 differ greatly, and one surface 25 is far away from the pivot 23 and when this abuts against the rear surface 18 of the body 10 the connection The point 14 moves forward beyond the dead center, and corresponds to a position where the pair of clamps 12 are separated from the groove inner wall surface 3. The other contact surface 26 is connected to the connection point 1
4 corresponds to the position moved slightly beyond the dead line to the rear end of the main body 10.

Further, as a part of the lock mechanism 21, a lock release spring 29 is interposed between the connection point 14 and the inner wall surface 28 of the hollow chamber 27 in the main body 10, and in the illustrated example, , A compression coil spring into which the operation rod 20 is inserted is added.

The operation of this embodiment will be described together with the operation of the first, second and fourth aspects of the present invention. First, when used as a wheel stopper, the handle 22 is raised from the state shown in FIG. 2 to the state shown by the dashed line, and the contact surface 25 is brought into contact with the rear surface 18 of the wheel stopper body 10 to release the lock. Due to the restoring force of the spring 29, the link mechanism 13
The connection point 14 is pushed forward, the links 15 and 16 are bent from the portion of the connection point 14, and one of the clamps 12 is attracted and separated from the inner wall surface 3 of the wheel passage groove 2.
The wheel stopper body 10 can freely slide back and forth in the wheel passage groove 2.

In this state, the wheel of the automobile is put into the wheel passage groove 2 of the wheel stopper frame 1 and the wheel stopper body 10
Is inserted in the direction of the wheel, and is pushed until it hits the wheel stopping surface 11. When the handle 22 is turned down again from the upright position, the contact surface 25 is moved to the rear surface 18 of the wheel stopper main body 10.
, The operating rod 20 is pulled out, the release spring 29 is compressed, and the connecting point 14 of the link mechanism 13 is stabilized at a position beyond the dead point. At this time, the pair of clamps 12 press against the inner wall surface 3 of the groove to fix the wheel stopper body 10 to the wheel stopper frame 1.

While the vehicle is being transported, a rearward load is applied to the wheel stopper body 10 when the transport vehicle starts or brakes, but the link mechanism 13 and the connection point 14 are set at positions beyond the dead center. To release beyond this, the clamp 12 more strongly presses against the inner wall surface 3 of the wheel retaining groove 2 during this time, and the connecting point 14 does not exceed the dead point. There is no risk of the wheel stopping frame 1 coming off. In order to release the fixing function, the handle 22 may be turned down again as in the preparation stage.

The second embodiment shown in FIGS. 2, 3 to 6 is an embodiment including the inventions described in the first, third, fourth and fifth aspects. The link mechanism 13 is basically the same as that of the first embodiment,
The same configuration or the same structural part is denoted by the same reference numeral, and a lowercase letter is added to the subscript. In the second embodiment, two sets of the link mechanisms 13a and 13b are provided for each clamp 12 independently of the left and right sides, and the links 15a and 15b of each link mechanism 13a and 13b are connected to the clamp 12. One end of each of the links 16a and 16b is pivotally connected to a part of the main body 10 by a common pin 10a. Even if this pin 19a is an independent and separate pin, it is included in the scope of this embodiment. The operation stick 20
The inner end 33 has a T-shape. The inner end 35 is provided with a pair of left and right long holes 34.
a and 13b are fitted on the axes of the respective connection points 14a and 14b (see FIG. 6). In the example of FIG. 6, for convenience of explanation, after the link mechanism 13 is completely assembled,
Although the operation rod 20 having a T-shape is attached, it is a mechanically preferable structure that the tip of the T-shape is engaged with the pivots of the connection points 14a and 14b between the links 15a, 16a and 15a and 15b, respectively. . Therefore, the operation rod 20
Is moved back and forth, a pair of left and right link mechanisms 13a,
13b operate simultaneously, and the pair of clamps 12 approach or move away from each other at the same time.

A connecting rod 30 composed of a thick wire and a rod is connected to the operating rod 20.
A lock mechanism 21 similar to that of the first embodiment is provided at an outer end 32 of the protection cylinder 31.
By laying down in different directions of 0 °, the respective connecting points 14a and 14b can select between a position where the pair of clamps 12 protrude from the main body 10 and two positions where the pair of clamps 12 are buried. . The invention described in claim 5 is the same as the invention according to claim 5, even if the protection cylinder 31 that protects the connecting rod 30 is not necessarily a cylindrical shape but is one or several strong rods of the support member 11. .

The length of the support rod 31 is such that when the main body 10 is brought into contact with the wheel of the vehicle, the position of the handle 22 is just below the rear edge of the vehicle body of the vehicle.

In the second embodiment, the operation of the pair of link mechanisms 13a and 13b is the same as that of the first embodiment, except that the left and right link mechanisms 13a and 13b are provided independently. Even if the movement size of the connection points 14a and 14b is small, the movement size of the clamp 12 is relatively large, and the movement size stroke of the operating rod 20 and the connection rod 30 by the lock mechanism 21 requires the pivot shaft 23 of the handle 22 to be eccentric. Accordingly, if the handle 22 is rotated by 180 °, a stroke twice as large as the eccentric dimension can be obtained, and the operation of the handle 22 becomes smoother. The release spring 29 is a flange 3 integrated with the inner surface 32 a of the outer end 32 of the protective cylinder 31 and the connecting rod 301.
3 is provided. The action of the release spring 29 is the first
It is completely the same as the release spring 29 of the embodiment.

[0024]

According to the first and second aspects of the present invention, since the invention is constructed and operates as described above, it is easy to fix and release the wheel stopper main body 10, and once the wheel stopper has been fixed, the wheel stopper is stopped. Even if an impact load is applied to the main body 10,
The clamp 12 is more strongly pressed against the inner wall surface 3 of the groove by the link mechanism 13, and there is no fear of loosening.

According to the third aspect of the present invention, since the right and left clamps 12 are independent and are connected to the link mechanism 13, the link mechanisms 13a and 13b are reduced in size, and the stroke of the connection point 14 is compared. The stroke size of the clamp 12 can be increased even if it is relatively small.

According to the fourth aspect of the present invention, since the surface layer of the clamp is formed of a hard rubber layer,
2 and the inner wall surface 3 of the groove are not mutually damaged, and the frictional force is large. Therefore, there is no possibility that the clamp 12 is loosened.

In the invention described in claim 5, the wheel stopper main body 10 and the handle 22 are connected to the connecting rod 30 and the support member 3.
Since the device is separated by 1, the entire device can be pushed into the lower part of the vehicle by operating the steering wheel, so that it is not necessary for the worker to go under the vehicle and operate as in the related art, and the operation is easy.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional plan view of an automotive wheel stopper according to an embodiment of the present invention.

FIG. 2 is a vertical sectional side view taken in the direction of the arrow in FIG.

FIG. 3 is an external perspective view of a vehicle wheel stopper device according to another embodiment of the present invention.

FIG. 4 is a bottom view of the wheel stopper device of FIG. 3 in a state where a cover is removed when a clamp is in pressure contact with the clamp.

FIG. 5 is a bottom view when the clamp is released in the wheel stopper device of FIG. 3;

FIG. 6 is a perspective view of a toggle joint type link mechanism of the wheel stopper device of FIG. 3;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Wheel stopper frame 2 Wheel passage groove 3 Groove inner wall surface 10 Wheel stopper body 11 Wheel stopper surface 12 Clamp 13 Toggle joint type link mechanism 14 Connection point 15 Link 15a Link 15b Link 16 Link 16a Link 16b Link 17 Rubber layer 20 Rubber rod 20 Lock mechanism 22 Handle 23 Axis 24 Handle base 25 Contact surface 26 Contact surface 27 Cavity chamber 28 Inner wall surface 29 Release spring 30 Connecting rod 31 Support member

Claims (5)

[Claims] 1. A wheel stopper main body 10 movable along a longitudinal direction of a groove is inserted into a wheel passage groove 2 of a wheel stopper frame 1 installed in a railway vehicle or the like. A pair of clamps 12 projecting to the side of the main body 10 and moving in the width direction of the wheel passage groove 2 are provided, and these clamps 12 are connected to each other by at least one pair of toggle joint type link mechanisms 13 which are connected left and right or independently. The connecting point 14 of the toggle joint type link mechanism 13 is moved from the position at which the pair of clamps 12 is moved slightly toward the axle stopper surface 11 of the wheel stopper main body 10 to a position slightly beyond the dead point. The operation rod 20 connected to the connection point 14 is provided with a stroke to lock the wheel stopper main body 10 at a position beyond the dead center of the connection point 14. An automobile wheel stopper device comprising a lock mechanism 21. 2. The vehicle wheel stopper according to claim 1, wherein the pair of clamps are connected by a pair of toggle joint type link mechanisms. 3. The left and right clamps 12 are respectively connected to one end of one of the links 15a and 15b of two sets of toggle joint mechanisms 13a and 13b that are left and right independent, and one ends of the other links 16a and 16b are respectively connected to It is pivotally connected to the wheel stopper body 10 by a common or independent pin, and each intermediate connection point 14a, 14b is
The vehicle wheel stopper device according to claim 1 or 2, wherein the common operation rod (20) is connected to the common operation rod (20) by an independent pin. 4. A hard rubber layer 1 having a high pressure resistance is provided on a surface of the pair of clamps 12 which is in contact with a wheel passage groove wall surface.
7. The device according to claim 1, wherein said first fixing member is fixed.
4. An automotive wheel stopper according to claim 3. 5. The lock mechanism comprises an operation rod 20 or a connecting rod 30 which moves integrally with the operation rod 20.
The operating rod 20 or the connecting rod 30 is pivotally connected to the handle 22 outside the outer end 32 of the support member 31 and is provided inside or along the support member 31 fixed to 0. Is configured such that the connection point 14 is stabilized at a position beyond the dead point, the operation rod 20 or the connection rod 30 is stabilized in a prone position, and the handle 22 is configured to be able to contact the outer end 32 of the support member 31. Yes, the connecting rod 3
The length of the support member 31 and the length of the support member 31 are set so that the position of the handle 22 is substantially immediately below the front or rear end of the wheel when the wheel stopper body 10 is applied to the wheel. 2. The vehicle wheel stopper device according to claim 3 or claim 4.