JP2003128388A - Jack-up tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a jack-up tool capable of easily handling a jack mounted on a vehicle by simple operation and not requiring force for operation. SOLUTION: This jack-up tool 1 is used for operating a substantially U-shaped operating part 14 disposed at the end of a rod screw 13 for expanding and contracting a jack. An engagement part 4 is provided at the tip of a socket part 3 freely rotated in the normal and reverse directions by a ratchet wrench 2, and the engagement part 4 is formed by an insert plate 5 inserted in the substantially U-shaped operating part 14 and a pair of projecting pieces 6 projected on both end parts of the insert plate 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jig for operating a pantograph type jack mounted on, for example, an automobile.

[0002]

2. Description of the Related Art Conventionally, an automobile is equipped with a jack as a standard for exchanging tires in the event of a puncture or the like. Is housed in a space opened in the inner panel or the like, and, for example, as shown in FIG. 4, the base plate 11 and the jack-up plate 12 of the jack 10 are pressed against the fixing pin P planted on the vehicle body side. It is fixed. At this time, since the space between the base plate 11 and the jack-up plate 12 is widened and pressed against the fixing pin P, as shown in FIG. Operation part 1
It is common to rotate 4 by hand to expand it, or as shown in FIG. 4 (b), rotate it with a driver tool or the like to expand it.

On the other hand, for example, when the tire of the vehicle is punctured and the vehicle body is actually jacked up, as shown in FIG. 5, the crank type lever 15 attached to the jack 10 is engaged with the operating portion 14 to operate the operating portion. By rotating the bar screw 13 via 14, the gap between the base plate 11 and the jack-up plate 12 is widened to lift the vehicle body.

[0004]

However, the jack 1
When 0 is housed in a fixed position in the vehicle body, the crank type lever 15 cannot be used in many cases because the housing space is narrow, and as shown in FIG. If you try to do that, you will need power and labor,
As shown in FIG. 4 (b), there is a problem in that when a driver tool or the like is used to rotate, the work is difficult, and moreover, it takes a lot of time and labor. Further, as shown in FIG. 5, when the operation portion 14 is rotated by using the crank-type lever 15, the lever 15 is easily disengaged from the operation portion 14, and a technique or force for rotating the lever 15 is required. there were.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a jack-up jig which allows a jack mounted on a vehicle to be easily handled by a simple operation and requires less force to rotate a rod screw. To do.

[0006]

In order to achieve the above object, the present invention engages an operating portion having a substantially U-shaped cross section provided at an end portion of a jack screw for extending and contracting a jack, and the rod screw is pivoted. In a jack-up jig for rotating around, an engaging portion engageable with an operating portion and a ratchet wrench for rotating the engaging portion in a predetermined direction are provided, and the engaging portion has a substantially An insert plate that can be inserted in the U-shape is provided.

By operating the ratchet wrench by inserting the insertion plate into the substantially U-shape, anyone can easily operate it, and the operation does not require force.

Further, according to the present invention, the pair of projecting pieces are provided so as to project from the plate surface at both end portions of the insertion plate. Then, when inserting the insertion plate, by sandwiching the side parts of the U-shape with the protruding pieces at both ends, the insertion plate will not easily come off from the inside of the U-shape during operation, and handling will be easier. Becomes

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described with reference to the accompanying drawings. Here, FIG. 1 is an explanatory view of a jack-up jig according to the present invention, FIG. 2 is a state diagram before the present jack-up jig is engaged with the jack, and FIG. 3 is a diagram showing the jack-up jig related to the jack. FIG.

The jack-up jig according to the present invention enables a pantograph-type jack mounted on a vehicle to be easily handled by a simple operation, and requires less force for rotating a rod screw. Has been

That is, the pantograph type jack 10
2, the pair of lower arms 16a and 16b pivotally attached to the base plate 11 side, the upper ends of the lower arms 16a and 16b, and the jack-up plate 12 are provided.
A pair of upper arms 17a and 17b pivotally attached to each side, and lower arms 16a and 16b and upper arms 17a and 17b.
It is provided with nuts 18 and 19 arranged in a connecting portion with and a bar screw 13 into which the nuts 18 and 19 are screwed,
The rod screw 13 has its spiral twisting direction reversed with respect to the central portion, and an operating portion 14 having a substantially U-shaped cross section is attached to one end of the rod screw 13.

Then, the bar screw 1 is inserted through the operating portion 14.
By rotating 3, the nuts 18 and 19 move synchronously toward the center side or the outside, and the gap between the base plate 11 side and the jack-up plate 12 side is expanded or contracted.

As shown in FIG. 1, the jack-up jig 1 is provided with an engaging portion 4 attached to the socket portion 3 of the ratchet wrench 2. The engaging portion 4 is an operating portion of the jack 10. Insert plate 5 that can be inserted into the substantially U-shaped 14
And a pair of projecting pieces 6 provided on the left and right ends of the insertion plate 5.

The left and right width intervals of the insertion plate 5 are made slightly wider than the substantially U-shaped width intervals of the operating portion 14, and
The length of the protruding piece 6 is longer than the U-shaped interval of the substantially U-shape. Therefore, when the insertion plate 5 is inserted into the substantially U-shape, the protruding pieces 6 are positioned so as to sandwich both ends of the operation portion 14, and the insertion plate 5 cannot be pulled out in the left-right direction. Has been done.

Further, the ratchet wrench 2 is provided with a switching lever 7 (FIGS. 2 and 3) for switching the rotation of the socket portion 3 in the forward and reverse directions. By switching the switching lever 7, When the socket part 3 is turned to one side, a force can be applied, and when it is turned in the opposite direction, it is made idle by a ratchet mechanism. By the way, as the ratchet wrench 2 as described above, an ordinary type as generally commercially available can be used, and the socket portion 3
If the engaging portion 4 is fixedly attached by welding or the like, the jack-up jig 1 can be easily manufactured.

The operation and the like of the above jack-up jig 1 will be described. When lifting the vehicle body with such a jack 10, the jack 10 housed in the housing space of the vehicle body is taken out and set below the jack-up point of the vehicle body. Then, in the substantially U-shaped portion of the operating portion 14 of the jack 10, the engaging portion 4 in the state shown in FIG.
The insertion plate 5 is inserted, the switching lever 7 is set to the forward rotation side, and the jack-up jig 1 is operated to increase the jack width and lift the vehicle body.

At this time, the jack-up jig 1 does not require much force to operate, and the work itself is easy.

When lowering the vehicle body, the switching lever 7 is switched to the reverse rotation side, the insertion plate 5 is inserted into a substantially U-shape, and the jack width is reduced to lower the vehicle body. Next, when housing the jack 10 in the housing space of the vehicle body, as shown in FIG. 4, the jack 10 is inserted between the fixing pins P planted on the vehicle body side.
And set up the operation unit 14 with the jack-up jig 1.
To rotate the jack forward to increase the jack width, and
Then, the jack-up plate 12 is pressed against the fixing pin P to be fixed. At this time, any operation is easy, and even when the accommodation space of the vehicle body is narrow, it is possible to work easily.

The present invention is not limited to the above embodiment. Those having substantially the same configurations as those described in the claims of the present invention and exhibiting the same operational effects belong to the technical scope of the present invention. For example, the form of the ratchet wrench 2 is merely an example, and the engaging portion 4 may be the one without the protruding piece 6.

[0020]

As described above, the jack-up jig according to the present invention rotates the operating portion having a substantially U-shaped cross section provided at the end portion of the rod screw for extending and contracting the jack, so that it is attached to the operating portion. Since a mating engaging portion and a ratchet wrench that rotates the engaging portion in a predetermined direction are provided, and the engaging portion is provided with an insertion plate that can be inserted into a substantially U shape of the operating portion, Anyone can easily operate it, and it is convenient because it does not require power. Further, if a pair of projecting pieces are provided at both end portions of the insertion plate so as to project from the plate surface, the insertion plate is less likely to come out of the substantially U shape during the operation, and the handling becomes easier.

[Brief description of drawings]

FIG. 1 is an explanatory view of a jack-up jig according to the present invention.

FIG. 2 is a state diagram before the jack-up jig is engaged with the jack.

FIG. 3 is a state diagram in which a jack-up jig is engaged with the jack.

FIG. 4 is a conventional diagram illustrating a state in which a jack is stored in a storage space of a vehicle body.

FIG. 5 is an explanatory view when operating a jack with a conventional jack-up jig.

[Explanation of symbols]

1 ... Jack up jig, 2 ... Ratchet wrench, 4
... engagement portion, 5 ... insertion plate, 6 ... projecting piece, 10 ... jack,
13 ... Bar screw, 14 ... Operation part.

Claims (2)

[Claims] 1. A jack-up jig for rotating a rod screw around an axis by engaging an operating portion having a substantially U-shaped cross section provided at an end of the rod screw for extending and contracting the jack. A ratchet wrench for rotating the engaging portion in a predetermined direction, and the engaging portion is a differential insertable within a substantially U-shape of the operating portion. A jack-up jig that is equipped with an insert plate. 2. The jack-up jig according to claim 1, wherein a pair of projecting pieces are provided at both end portions of the insertion plate so as to project from the plate surface. Ingredient