JP3138458U - Extension aid for rear suspension - Google Patents

Abstract

An object of the present invention is to make it possible to easily add to an existing rear suspension and extend its length, and to avoid interference between a vehicle body frame side and a large-diameter tire during turning.
As an extension auxiliary tool for a rear suspension, a prismatic extension auxiliary tool body 2 and a pivot bolt 3 are used. A receiving recess for receiving the U-shaped engagement portion 12 of the damper from above is formed on the upper part of the front and rear surfaces of the extension assisting tool body 2 so as to be fixed so as not to swing, and a connecting bolt is provided at the center of the receiving recess. Fifteen through holes for insertion are formed. The left and right side walls are extended in a forked shape at the lower part of the extension assisting tool body 2 to form a bifurcated engaging portion 2c that can be inserted into the engaging body 24 of the rear wheel support frame 23, and one extended side wall. An insertion hole for the pivot bolt 3 was formed at the center of the distal end side, and a screw hole 2e for screwing with the pivot bolt 3 was formed at the center of the distal end of the other extension side wall.
[Selection] Figure 1

Description

  The present invention relates to a rear suspension extension auxiliary tool mainly used for a three-wheeled vehicle type minicar.

  Conventionally, for example, as shown by a solid line in FIG. 8, the rear suspension 10 used for a three-wheeled vehicle type minicar is composed of a damper 13 and a spring 14, and the upper end of the damper 13 is located in the middle in the width direction behind the body frame 21. The lower end portion is fixed to the middle portion in the width direction of the rear wheel support frame 23 so as to be swingable in the left-right direction. Specifically, the U-shaped engaging portion 12 is provided at the lower end of the damper 13, and the engaging body 24 that is inserted so that the U-shaped engaging portion 12 is sandwiched between the rear wheel support frame 23 is projected. The damper 13, that is, the vehicle body frame 21 is supported by the rear wheel support frame 23 so as to be swingable in the left-right direction by being pivotally supported by the connecting bolt 15 in a state where the U-shaped engagement portion 12 is inserted into the engagement body 24. ing.

  As a result, when the three-wheeled vehicle type minicar A turns to the right or left, the vehicle body frame 21 tilts with respect to the rear wheel support frame 23 in the direction of the turning axis within a range of a certain angle, thereby smoothly turning. It is designed to be able to run.

  However, in the above-described three-wheeled vehicle type minicar A, the body frame 21 is supported so as to be swingable in the left-right direction with respect to the rear wheel support frame 23. When trying to replace with 26, 26 or a large diameter aluminum wheel, there is a problem that the body frame 21 side and the large diameter tire 26 interfere with each other as shown by the phantom line in FIG. For this reason, when replacing the large-diameter tire 26, the rear suspension 10 must be replaced with a longer rear suspension at the same time.

  Therefore, the present invention can be easily added to the existing rear suspension and its length can be extended, and the same effect can be obtained as replacing the long suspension, avoiding interference between the body frame side and the large-diameter tire. An object of the present invention is to provide a rear suspension extension assisting device that can be used.

  In order to solve the above problems, the present invention comprises a damper having a U-shaped engaging portion at the lower end and a spring. The upper end of the damper is fixed to the vehicle body frame, and the lower end protrudes from the rear wheel support frame. A rear suspension that is pivotally supported by a connecting bolt in a state where the U-shaped engaging portion is inserted into an engaging body provided so that the damper can swing in the left-right direction with respect to the rear wheel support frame. An extension assisting tool consisting of a prismatic extension assisting tool body and a pivotal bolt. The U-shaped engagement part of the damper is received from the upper side of the extension assisting tool body from above and fixed so that it cannot swing. And a through hole for insertion of the connecting bolt is formed at the center of the receiving recess, while the left and right side wall portions are bifurcated at the lower portion of the extension assisting device main body. Extended, A bifurcated engagement portion that can be inserted so as to be sandwiched between the engagement members of the wheel support frame is formed, a pivot bolt insertion hole is provided at the center of the distal end side of one extension side wall, and the tip end of the other extension side wall A screw hole that is screwed with the pivot bolt is formed at the center.

  According to the present invention, when the rear wheel of a three-wheeled vehicle minicar is replaced with a large-diameter aluminum wheel or a large-diameter tire, the U-shaped engagement portion at the lower part of the damper in the rear suspension is extended to assist. Inserting into the receiving recess of the tool body from above and connecting and fixing with connecting bolts to extend the length of the damper, while sandwiching the bifurcated engaging part of the extension assisting tool body into the engaging body of the rear wheel support frame What is necessary is just to pivot both by the pivot bolt in the state inserted. This makes it easy to add the extension aid to the existing rear suspension and extend its length, which has the same effect as replacing it with a longer suspension. When turning a tricycle-type minicar, And interference with large-diameter tires. In addition, it is very economical because there is no need to purchase and replace the entire expensive long rear suspension.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 and 2 show a rear suspension 10 used in a three-wheeled vehicle type minicar equipped with the extension assisting tool 1 according to the present invention. Here, the rear suspension 10 is an existing one, and is interposed between a damper 13 having an eyeglass-like engagement hole 11 at the upper end and a U-shaped engagement portion 12 at the lower end, and an intermediate portion of the damper 13. As shown by the solid line in FIG. 8, the upper end engaging hole 11 of the damper 13 is fixed to the engaging portion 22 of the vehicle body frame 21 and the lower end U-shaped engaging portion 12 is The damper 13 is pivotally supported by the connecting bolt 15 so as to be sandwiched between engagement members 24 projecting from the wheel support frame 23, and the damper 13 swings with respect to the rear wheel support frame 23 in a range of a certain angle in the left-right direction. It is configured to be movably supported.

  The rear suspension extension assisting tool 1 according to the present invention increases the length of the damper 13 in the existing rear suspension 10 when the rear wheel of the three-wheeled vehicle type minicar A is to be replaced with the large-diameter tire 26. The extension is used to avoid interference between the body frame 21 and the large-diameter tire 26 while using the existing rear suspension 10 as it is. Next, a specific structure thereof will be described.

  This extension assisting tool 1 is composed of a prismatic extension assisting tool main body 2 and a pivot bolt 3 as shown in FIGS. 3 to 6. Receiving recesses 2a and 2a for receiving the engaging portion 12 from the upper side and fixing the engaging portion 12 so as not to swing are formed, and the connecting bolt 15 is inserted through the central portion of the receiving recesses 2a and 2a. While the hole 2b is formed, the left and right side wall portions are bifurcated at the lower portion of the extension assisting device main body 2, and the bifurcated engagement portion 2c that can be inserted into the engagement body 24 of the rear wheel support frame 23. , The insertion hole 2d of the pivot bolt 3 at the center of the tip of one of the extension side walls, and the screw hole that engages with the tip screw of the pivot bolt 3 at the center of the tip of the other extension side wall. e is formed.

  Next, the operation of the rear suspension extension auxiliary tool of the present invention will be described.

  As shown in FIG. 7, when the rear wheels of the three-wheeled vehicle minicar A are replaced with large-diameter tires 26 and 26, extension assistance is provided below the damper 13 in the existing rear suspension 10 as shown in FIGS. Set tool 1.

  At that time, first, the U-shaped engaging portion 12 provided at the lower portion of the damper 13 is inserted and inserted into the front and rear receiving recesses 2a, 2a of the extension assisting tool body 2 from above, and then these U-shaped The connecting bolt 15 is inserted into the through hole 2b at the center of the engaging portion 12 and the receiving recesses 2a and 2a, and the both are fixed by the bolt 15 so as not to swing. Thereby, the length of the damper 13 in the rear suspension 10 can be easily and quickly extended.

  Next, the upper end engaging hole portion 11 of the damper 13 is fixed to an engaging portion 22 provided in the intermediate portion in the width direction behind the vehicle body frame 21 with a fixing bolt (not shown) as in the prior art. As shown in FIG. 2, the connecting bolt in a state where the bifurcated engaging portion 2 c of the extension auxiliary tool body 2 provided at the lower end of the damper 13 is inserted and fitted so as to be sandwiched between the engaging bodies 24 protruding from the rear wheel support frame 23 3, and the damper 13 may be supported so as to be swingable in the left-right direction with respect to the rear wheel support frame 23.

  As described above, the extension assisting tool 1 can be easily and easily attached to the existing rear suspension 10 and the length thereof can be extended. In addition, between the body frame 21 and the rear wheel support frame 23 of the minicar A, It can be set as before. As a result, the same effect as when the suspension is replaced with a long suspension can be obtained, and interference between the vehicle body frame side 21 and the large-diameter tire 26 can be avoided when the tricycle minicar A turns. In addition, it is very economical because there is no need to purchase and replace the entire expensive long rear suspension.

  It is a front view of the state which set the extension auxiliary tool concerning the present invention to the rear suspension.   It is an identical part abbreviation side view.   It is a disassembled front view of the extension assistance tool.   It is a side view of the extension auxiliary tool main body.   It is explanatory drawing of the assembly | attachment state of the extension assistance tool.   It is AA sectional drawing of FIG.   It is explanatory drawing of a use state.   It is conventional explanatory drawing.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Extension assistance tool 2 Extension assistance tool main body 2a Receiving recess 2b Insertion through-hole 2c Fork engagement part 2d Insertion hole 2e Screw hole 3 Pivot bolt

Claims (1)

  The upper end of the damper is fixed to the vehicle body frame and the lower end protrudes from the rear wheel support frame. A rear suspension extension aid that is pivotally supported by a connecting bolt in a state of being inserted so as to sandwich the joint, and the damper is supported to be swingable in the left-right direction with respect to the rear wheel support frame. It consists of an extension auxiliary tool body and a pivot bolt, and a receiving recess for receiving the U-shaped engaging part of the damper from the upper side and fixing it so that it cannot swing is formed on the upper part of the front and rear surfaces of the extension auxiliary tool body. In addition, a through-hole for inserting the connecting bolt is formed in the center of the receiving recess, while the left and right side wall portions are extended in a bifurcated shape at the lower portion of the extension assisting tool main body, so that the rear wheel support frame is engaged. Sandwiched in unity A bifurcated engaging portion is formed, and a pivot bolt insertion hole is formed at the center of the tip of one extension side wall, and a pivot bolt and screw are formed at the center of the tip of the other extension side wall. A rear suspension extension assisting tool, wherein a screw hole is formed.

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