JPH0722365Y2 - A pair of jack appliances - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pair of jack devices suitable for work such as tire replacement and chain attachment / detachment.

[0002]

2. Description of the Related Art The tires are replaced by jacks when the tires are replaced or the chain is attached or detached when repairing a flat tire. There are various types of jacks,
Normally, the manual type installed on the wheels is used.

[0003]

Although this type of jack has a relatively simple structure, it still has a problem that it is difficult to handle because it is not understood by women and girls. In addition, there is a problem in that the steering wheel operation is troublesome and it takes time to replace tires. Further, if the jack is floated on a sloping ground or the like, the load is applied diagonally, so that the jack tends to fall down, which is dangerous.

Therefore, the present invention has been made to solve the above problems, and an object of the present invention is to provide a pair of jack devices which are safe and easy to handle, and which can replace tires in a short time. There is.

[0005]

In order to achieve the above object, the present invention has the following construction. That is, the wheel has a riding surface on which the vehicle rides up to a predetermined height from the ground surface, and the riding surface is formed as an inclined surface that is inclined in a direction intersecting with the riding direction of the wheel. It is preferable to provide a dam portion for preventing wheel disengagement along both edges of the riding surface.

[0006]

The operation of the first embodiment will be described. Figure 3
Shows the case where the left front wheel 24a is floated. First, the jack device 10 is arranged in front of the right front wheel 24b and in front of the left rear wheel 24c. The direction indicated by the arrow on the jack device 10 indicates the direction of inclination of the riding surface 14 (lowering in the arrow direction). Set the settings as above and move the vehicle forward.
b, the rear left wheel 24c, the riding surface 14 of the jack device 10
Let each ride. That is, the jack device 10
Is placed in front of the wheels located on the diagonal line of the vehicle to ride on the vehicle. Riding surface 14 of jack device 10
Since the vehicle is tilted in a direction perpendicular to the wheel riding direction, when the wheel is riding, the weight balance of the vehicle becomes heavier on the right rear wheel 24d side, and even if the ground surface is slightly tilted, The left front wheel 24a is surely in a floating state. FIG. 4 shows a case where the left rear wheel 24c is floated. In this case, the jack device 10 may be arranged in front of the left front wheel 24a and the right rear wheel 24d and the wheels may be run up. FIG. 5 shows a case in which the right rear wheel 24d is floated, and the jack device 10 may be arranged behind the right front wheel 24b and the left rear wheel 24c, and the vehicle may be moved backward to ride the wheels. FIG. 6 shows a case where the right front wheel 24b is floated. In this case, the left front wheel 24b
a, arrange the jack device 10 behind the right rear wheel 24d,
After all, the vehicle should be backed up and the wheels should be raised.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a front view of the jack device 10, and FIG. 2 is a partially cutaway side view. The jack device 10 has a trapezoidal shape with a substantially one-sided front surface, and a wall surface 12 corresponding to the inclined side portion and an upper surface 13 corresponding to the upper side portion thereof have a suitable shape so that a wheel can climb from the ground surface to the upper surface 13. It is formed on the riding surface 14 having an inclination angle. As is clear in FIG. 2, the riding surface 14 is formed as an inclined surface that is inclined in a direction perpendicular to the riding direction of the wheels (the right side in FIG. 2 is a low inclined surface). 16
Is a dam portion, and is provided so as to project along both edges of the riding surface 14. The dam portion 16 is provided to prevent the wheels from coming off the riding surface 14. See also FIG.
As shown in FIG. 5, the side surface outer shape of the jack device 10 is also formed to have a substantially trapezoidal shape for stability when the wheel rides on the vehicle.

An anti-slip sheet 18 made of rubber or the like for preventing the tire from slipping is fixed to the riding surface 14. It is more preferable to provide the slip stop sheet 18 with spike pins (not shown) similar to those provided on spike tires. Reference numeral 20 is a non-slip sheet attached to the lower surface of the bottom plate 22. The jack device 10 has a hollow shape with an open left side surface in FIG. 1. The jack device 10 of the present invention is used as a pair with the jack device 10 having the same configuration as described above. If the other jack device 10 is formed to be slightly smaller than the jack device 10 and can be stored in the jack device 10 from its open portion, it can be stored compactly and conveniently.

The present embodiment is constructed as described above.
The method of use is shown in FIGS. Figure 3 shows the left front wheel 24a
Shows the case of floating. First, the jack device 10 is arranged in front of the right front wheel 24b and in front of the left rear wheel 24c. The direction indicated by the arrow on the jack device 10 indicates the direction of inclination of the riding surface 14 (lowering in the arrow direction). Set the vehicle as above and move the vehicle forward. Right front wheel 24b, left rear wheel 24c
On the riding surface 14 of the jack device 10. That is, the jack device 10 is arranged in front of the wheels located on the diagonal line of the vehicle and is ridden on. If the riding surface 14 of the jack device 10 is not inclined with respect to the wheel riding direction, either or both of the left front wheel 24a and the right rear wheel 24d will float above the ground surface due to the vehicle balance, and It is stable. However, in the present invention, since the riding surface 14 of the jack device 10 is provided so as to be inclined in the direction perpendicular to the wheel riding direction as described above, when the wheel is riding as described above, the weight balance of the vehicle is the right rear wheel. It becomes heavy on the side of 24d, so that even if the ground surface is slightly inclined, the left front wheel 24a is reliably in a floating state.
Since the three wheels 24b, 24c, and 24d are in a grounded state, they are extremely stable, and work such as replacement of the left front wheel 24a can be performed safely.

FIG. 4 shows a case where the left rear wheel 24c is floated. In this case, the jack device 10 may be arranged in front of the left front wheel 24a and the right rear wheel 24d and the wheels may be run up. FIG. 5 shows a case where the right rear wheel 24d is floated, and the right front wheel 24 is
b, the jack device 10 may be arranged behind the left rear wheel 24c, and the vehicle may be moved backward to ride the wheel. FIG. 6 shows a case where the right front wheel 24b is floated. In this case, the jack device 10 may be arranged behind the left front wheel 24a and the right rear wheel 24d, and the vehicle may be backed up to ride the wheels.

FIG. 7 shows another embodiment. In the present embodiment, the jack device 10 is formed in a trapezoidal shape in which the front shape is a double-flow shape, and the wall surface 12 and the upper surface 13 corresponding to both inclined side portions of the jack equipment 10 can be climbed up to the upper surface 13 from any wheel. 14 is formed. The point that the riding surface 14 is formed as an inclined surface that is inclined in a direction perpendicular to the riding direction of the wheels is the same as in the above embodiment. 8 to 1
1 shows the usage method. The arrow attached to the jack device 10 indicates the direction of inclination of the riding surface 14 (lowering in the arrow direction). As is clear from the figure, in the present embodiment, the jack device 10 is formed with the riding surface 14 that can be climbed up to the upper surface from any direction. Therefore, only one of the four wheels can float only when the vehicle moves forward. You can In addition, in FIGS. 8 and 10, and in FIGS. 9 and 11, the front and rear direction of the jack device 10 with respect to the vehicle are reversed. In this embodiment, the jack device 10 becomes long in the wheel riding direction and becomes large in size. Therefore, it is preferable to divide the main body into three parts with respect to the wheel riding direction so that both side portions can be housed in the central portion to be compact. is there. In each of the above embodiments, the material of the jack device is not particularly limited and can be made of synthetic resin, rubber, metal, wood or the like. If the strength of the material is great, the bottom plate 22 does not necessarily have to be provided, and the lower side can be opened so that one jack device can be accommodated in the other jack device from this lower side to achieve compactness. You can also do it.

Although the present invention has been variously described with reference to the preferred embodiments, the present invention is not limited to these embodiments, and many modifications can be made without departing from the spirit of the invention. Of course.

[0013]

EFFECTS OF THE INVENTION According to the jack device of the present invention, the pair of jack devices may be arranged in a predetermined direction in front of or behind the wheels to allow the wheels to ride up, so that the wheels can be lifted very easily. Yes, in this case,
The other three wheels are surely in contact with the ground, so that tire replacement work can be performed easily and safely.

[Brief description of drawings]

FIG. 1 is a front view showing a first embodiment.

FIG. 2 is a partially cutaway side view of FIG.

FIG. 3 shows an example of use in which the left front wheel is floated in the first embodiment.

FIG. 4 shows an example of use of floating the left rear wheel in the first embodiment.

FIG. 5 shows an example of use of floating the right rear wheel in the first embodiment.

FIG. 6 shows an example of use of floating the right front wheel in the first embodiment.

FIG. 7 is a front view showing a second embodiment.

FIG. 8 shows a usage example in which the left front wheel is floated in the second embodiment.

FIG. 9 shows a usage example for floating the left rear wheel in the second embodiment.

FIG. 10 shows an example of use of floating the right rear wheel in the second embodiment.

FIG. 11 shows an example of use of floating the right front wheel in the second embodiment.

[Explanation of symbols]

 10 jack equipment 14 riding surface 16 dam

Claims (2)

[Scope of utility model registration request] 1. A pair of jack devices, wherein a wheel has a riding surface on which the vehicle rides up to a predetermined height from the ground surface, and the riding surface is formed as an inclined surface which is inclined in a direction intersecting with the wheel riding direction. . 2. A pair of jack devices, characterized in that a dam wall portion for preventing wheel disengagement is provided so as to project along both edges of the riding surface.