JP4183480B2 - Vehicle height adjustment device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vehicle height adjusting device that adjusts the vehicle height of a vehicle such as an SUV (Sports Utility Vehicle).
[0002]
[Prior art]
In SUV, it is necessary to raise the vehicle height during normal travel to protect the drive system when traveling on a river or bush. As a vehicle height adjusting device for this purpose, there is a technique described in Japanese Patent Laid-Open No. 2001-171322 (Patent Document 1).
[0003]
Such a vehicle height adjusting device is in contact with one surface of the lower arm formed by a lower arm provided in a vehicle, a tube body provided with a screw on an inner and outer peripheral surface provided in an opening of the lower arm, and a nut provided in the tube body. A lower lock nut, an upper lock nut in contact with the other surface of the lower arm provided with a screw threadedly engaged with a screw on the outer peripheral surface of the lower lock nut tube, and a screw on the inner peripheral surface of the lower lock nut tube A vehicle height adjusting bracket main body comprising a shaft portion screwed to the shaft, an umbrella-shaped main body portion provided at the tip of the shaft portion, and a spring receiving portion provided at the base of the main body portion, and the vehicle height adjusting bracket main body A stopper provided on the shaft portion for preventing the drop off, a locking hole provided on a lower surface of the shaft portion of the vehicle height adjustment fitting body, and a spring receiving portion of the vehicle height adjustment fitting body and the vehicle. Spring provided A shock absorber provided in the vehicle, in configured, those.
[0004]
Such a vehicle height adjusting device adjusts the vehicle height by moving the body portion up and down by rotating the shaft portion of the vehicle height adjusting bracket body with a wrench or the like.
[0005]
[Patent Document 1]
JP 2001-171322 A (pages 5 to 6, FIG. 3)
[0006]
[Problems to be solved by the invention]
However, in the vehicle height adjusting device described in Patent Document 1, since the vehicle height is adjusted in a state where the vehicle weight is applied to the screw, the screw may be damaged. In addition, when the vehicle height is adjusted, the weight of the screw is added to the screw, so that the screw is likely to be damaged. If the vehicle body is jacked up at the time of adjusting the vehicle height, the vehicle height can be adjusted without adding the vehicle weight to the screw, but the operation of jacking up is necessary. Furthermore, in order to achieve the desired vehicle height, the amount of rotation of the shaft must be controlled reliably. However, in the work of rotating the shaft with a wrench, etc., to achieve the desired vehicle height. Requires considerable skill. In order to assist this, it is conceivable to place a scale or the like on the shaft portion at equal intervals in the rotational direction, but the scale may be erroneous depending on the viewing direction, and cannot be said to be reliable. In particular, in the vehicle height adjusting device located below the vehicle body, the working posture is also tight, so it is difficult to reliably obtain the desired vehicle height.
[0007]
The present invention has been developed in view of the above circumstances, and it is an object of the present invention to provide a compact vehicle height adjustment device that can easily adjust the vehicle height without the need to jack up the vehicle body. It is said.
[0008]
[Means for Solving the Problems]
A vehicle height adjusting device according to the present invention is a vehicle height adjusting device that is interposed between a base plate provided on a lower arm of an automobile and a coil spring and adjusts the vehicle height, and a support plate attached to the base plate; And a vertical movement mechanism mounted on the support plate and a spring support body that is moved up and down by the vertical movement mechanism. At least three knock pins are provided on the same circumference on the support plate. The spring support is provided with a flange portion that receives the lower end of the coil spring, and the flange support portion is provided with a substantially stepwise knock pin plate that has a plurality of step portions that receive the knock pin. When the vertical movement mechanism is raised to the top, the knock pin pre- The step portion located at the lowermost of the step portions of the ridge is located above the knock pin, and when the vertical movement mechanism is released, only the knock pin receives the spring support. .
[0009]
The outer diameter of the vertical movement mechanism is smaller than the inner diameter of the coil spring, and the vertical movement mechanism enters the inside of the coil spring.
[0010]
The vertical movement mechanism is preferably a hydraulic jack.
[0011]
Furthermore, the said spring support body is a cylindrical body with a bottom, and the said flange part is provided in the lower end part of the spring support body.
[0012]
The tip of the knock pin has a conical shape, and the step portion of the knock pin plate matches the shape of the tip of the knock pin.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a schematic front view of a vehicle height adjusting apparatus according to an embodiment of the present invention, FIG. 2 is a schematic partially cutaway side view of the vehicle height adjusting apparatus according to the embodiment of the present invention, and FIG. FIG. 4 is a schematic plan view showing a combination of a support plate and a spring support constituting the vehicle height adjusting device according to the embodiment, and FIG. 4 is a spring support constituting the vehicle height adjusting device according to the embodiment of the present invention. FIG. 5 is a schematic plan view of a support plate constituting the vehicle height adjusting device according to the embodiment of the present invention, and FIG. 6 is a vehicle height adjusting device according to the embodiment of the present invention. It is a schematic plan view of a knock pin plate.
[0014]
A vehicle height adjusting device according to an embodiment of the present invention is a vehicle height adjusting device that is interposed between a base plate 600 provided on a lower arm (not shown) of an automobile and a coil spring 700 and adjusts the vehicle height. A support plate 100 attached to the base plate 600, a hydraulic jack 200 as a vertical movement mechanism mounted on the support plate 100, and a spring support 300 that is moved up and down by the hydraulic jack 200. The support plate 100 has three knock pins 400 erected on the same circumference at equal intervals, and the spring support 300 is provided with a flange portion 310 for receiving the lower end of the coil spring 700. Includes four steps 510A, 510B, 510C for receiving the knock pin 400. Substantially stepped three knock pin plate 500 having a 510D are attached to suspended in the same relationship to the arrangement of the knock pin 400, the spring support 300 by the hydraulic jack 200 is raised to the top, the knock pin plate Of the 500 step portions 510A, 510B, 510C, 510D, the lowermost step portion 510D is positioned above the knock pin 400. When the hydraulic jack 200 is released, only the knock pin 400 is The spring support 300 is received.
[0015]
As shown in FIG. 5, four openings 110 for fixing a hydraulic jack 200 to be described later are formed at a substantially central portion of the support plate 100. Further, three knock pins 400 are erected on the periphery of the support plate 100 at intervals of 120 ° on the same circumference. The knock pin 400 is fixed to the support plate 100 by appropriate means such as screwing.
[0016]
Further, three notches 120 are provided in the periphery of the support plate 100 and in the vicinity of the knock pin 400. The notch 120 is a portion that acts as a relief of the step below the knock pin 400 when the knock pin 400 receives the upper step among the four steps 510A, 510B, 510C, 510D of the knock pin plate 500. is there.
[0017]
In addition, two 130 in FIG. 5 is a screw hole used when this support plate 100 is fixed to the base plate 600 of a lower arm.
[0018]
The knock pin 400 has a conical tip. This is a result of matching with the shapes of step portions 510A, 510B, 510C, and 510D of a knock pin plate 500 described later.
[0019]
The spring support 300 is formed in a bottomed cylindrical shape whose upper surface 330 is closed. An opening 331 into which the protrusion 211 of the receiving seat 210 of the hydraulic jack 200 is inserted is formed at the center of the upper surface 330. The outer diameter of the cylindrical portion 320 of the spring support 300 must be smaller than the inner diameter of the coil spring 700. Further, a flange portion 310 facing outward is provided at the lower end portion of the spring support 300, that is, the lower end portion of the cylindrical portion 320. The flange portion 310 is a portion that receives the lower end of the coil spring 700.
[0020]
Three recesses 311 are formed in the flange portion 310 of the spring support 300 at intervals of 120 °. The recessed portion 311 is a portion to which a later-described knock pin plate 500 is attached, and two screw holes 312 are formed in each.
[0021]
The knock pin plate 500 is a plate material having four step portions 510A, 510B, 510C, 510D having a substantially step shape. As shown in FIG. 6, the four step portions 510A, 510B, 510C, 510D of the knock pin plate 500 have four vertical sides 512A, 512B, 512C, 512D and the four vertical sides 512A, 512B, 512C, 512D. 511A, 511B, 511C, and 511D. Accordingly, each of the step portions 510A, 510B, 510C, 510D is composed of the vertical sides 512A, 512B, 512C, 512D and the inclined sides 511A, 511B, 511C, 511D, respectively.
[0022]
The corners of the vertical sides 512A, 512B, 512C, 512D and the inclined sides 511A, 511B, 511C, 511D are acute angles. This is because the inclined sides 511A, 511B, 511C, and 511D are brought into close contact with the tapered surface of the tip of the knock pin 400, and the vertical sides 512A, 512B, 512C, and 512D are surrounded by the periphery of the knock pin 400. This is because it is in close contact with the surface.
[0023]
The knock pin plate 500 is fixed by screwing or the like in a state where the upper end portion is fitted in the recess 311 of the flange portion 310. Two 520 in FIG. 6 are screw holes for fixing the knock pin plate 500 to the spring support 300. The width dimension of the upper end portion of the knock pin plate 500 is set slightly smaller than the maximum width dimension of other portions of the knock pin plate 500. This is because a step 530 is formed between the upper end portion and the portion having the maximum width dimension, and when the knock pin plate 500 is fixed to the spring support 300, the step 530 is used to connect the screw hole 520 to the support plate. This is to facilitate the work by matching with 100 screw holes (not shown).
[0024]
The hydraulic jack 200 is configured to return to the initial state, that is, to the lowermost position by loosening the valve 220 by operating the arm (not shown) to move the receiving seat 210 upward. Here, when the receiving seat 210 of the hydraulic jack 200 reaches the uppermost portion, the step portion 510D positioned at the lowermost position among the four step portions 510A, 510B, 510C, 510D of the knock pin plate 500 is located above the knock pin 400. It is important to be located.
[0025]
Further, the hydraulic jack 200 has an outer diameter dimension set smaller than an inner diameter dimension of the coil spring 700 and smaller than an inner diameter dimension of the cylindrical portion 320 of the spring support 300. Accordingly, the hydraulic jack 200 enters the inside of the cylindrical portion 320 of the spring support 300, and the cylinder 320 of the spring support 300 enters the inside of the coil spring 700.
[0026]
The shock absorber is interposed between the lower arm and an upper arm (not shown).
[0027]
Next, a procedure for adjusting the vehicle height by the vehicle height adjusting device having the above-described configuration will be described. The knock pin 400 is assumed to be engaged with the second step portion 510B from the top. Of course, at the time of adjusting the vehicle height, the engine is stopped and the wheels are stopped. Moreover, there is no need to remove the tire.
[0028]
First, the hydraulic jack 200 is operated to move the spring support 300 upward. Then, the knock pin plate 500 also moves upward in accordance with the spring support 300, so that the step portion 510B is detached from the knock pin 400. However, since the spring support 300 is supported by the hydraulic jack 200, the spring support 300 is not likely to fall even if the knock pin 400 is detached from the step portion 510B.
[0029]
If the knock pin 400 is disengaged from the step portion 510B, when the vehicle height is increased, that is, when the step portion corresponding to the desired vehicle height is the step portion 510D, the step portion 510D corresponding to the desired vehicle height is obtained. The spring support 300 is further raised by the hydraulic jack 200 until it becomes higher than the knock pin 400. Then, the spring support 300 is manually rotated, and the step portion 510D corresponding to the desired vehicle height is positioned directly above the knock pin 400. This is the same for the three knock pins 400.
[0030]
When the vehicle height is lowered, that is, when the step corresponding to the desired vehicle height is the step 510A, the spring support 300 is manually rotated with the knock pin 400 detached from the step 510B. The knock pin 400 is positioned directly below the step portion 510A corresponding to the desired vehicle height. This is the same for the three knock pins 400.
[0031]
Whether the vehicle height is increased or decreased, the valve 220 of the hydraulic jack 200 is loosened while maintaining the state. Then, since the receiving seat 210 of the hydraulic jack 200 moves to the lower initial state, the spring support 300 also moves downward. Thus, the step portion 510D and the step portion 510A corresponding to the desired vehicle height are placed on the knock pin 400, and the desired vehicle height can be obtained. In this state, the hydraulic jack 200 is released and the receiving seat 210 is returned to the initial state, so that only the knock pin 400 receives the spring support 300 via the knock pin plate 500.
[0032]
When the spring support 300 is moved up and down by the hydraulic jack 200, the protrusion 211 of the receiving seat 210 of the hydraulic jack 200 is inserted into the opening 311 of the upper surface 330 of the spring support 300, and thus the spring support 300. Does not move back and forth and left and right carelessly.
[0033]
When the adjustment of the vehicle height is completed, the vehicle weight is applied to the knock pin and not to the hydraulic jack 20, so that vibration during traveling does not adversely affect the hydraulic jack 200.
[0034]
In the above-described embodiment, the vertical movement mechanism is the hydraulic jack 200. However, a mechanical jack, a hydraulic cylinder, or an air cylinder may be used. In short, it is only necessary that the spring support 300 can be moved up and down while the coil spring 700 is supported. Further, the hydraulic jack 200 may be moved up and down by a motor or the like.
[0035]
In the above-described embodiment, the number of the knock pins 400 is three and the number of the knock pin plates 500 is three, but it is needless to say that the number may be four, four or more.
[0036]
Further, the step portions 510A, 510B, 510C, 510D of the knock pin plate 500 are assumed to be four steps, but may be two steps or more.
[0037]
【The invention's effect】
A vehicle height adjusting device according to the present invention is a vehicle height adjusting device that is interposed between a base plate provided on a lower arm of an automobile and a coil spring and adjusts the vehicle height, and a support plate attached to the base plate; And a vertical movement mechanism placed on the support plate and a spring support body that is moved up and down by the vertical movement mechanism. At least three knock pins are provided on the same circumference on the support plate. The spring support is provided with a flange portion for receiving the lower end of the coil spring, and a substantially stepwise knock pin plate having a plurality of step portions for receiving the knock pin is disposed on the spring support. mounted by hanging in the same relationship, the upper the spring support to the top by the vertical movement mechanism When is a stepped portion which is located lowermost of the stepped portion of the knock pin plate, adapted to positioned above the knock pin and releases the vertically moving mechanism, so that only the knock pin is subjected to the spring support It has become.
[0038]
In such a vehicle height adjusting device, the spring support is moved upward by the vertical movement mechanism to release the support of the stepped portion of the knock pin plate by the knock pin, and then the spring support is rotated to support the spring by the vertical movement mechanism. The vehicle height can be adjusted very easily by releasing the body movement. Further, since the knock pin plate is provided with a plurality of step portions and can receive the knock pins only at the step portions, the desired vehicle height can be obtained easily and reliably.
[0039]
In addition, the outer diameter of the vertical movement mechanism is smaller than the inner diameter of the coil spring, and the vertical movement mechanism is placed inside the coil spring, so that it can be smaller than the coil spring. For this reason, the whole can be comprised compactly.
[0040]
Furthermore, if the vertical movement mechanism is a hydraulic jack, the vehicle height can be easily adjusted even if the vertical movement mechanism has little physical strength.
[0041]
The spring support is a cylindrical body with a bottom, and when the flange portion is provided at the lower end of the spring support, the spring support is covered with a vertical movement mechanism (hydraulic jack). Therefore, the vertical movement mechanism (hydraulic jack) is not detached from the spring support, and the vehicle height can be adjusted safely.
[0042]
The tip of the knock pin has a conical shape, and the step of the knock pin plate matches the shape of the tip of the knock pin, so that the state where the knock pin supports the step of the knock pin plate is stable. The problem of inadvertent removal sometimes does not occur.
[Brief description of the drawings]
FIG. 1 is a schematic front view of a vehicle height adjusting device according to an embodiment of the present invention.
FIG. 2 is a schematic partially broken side view of the vehicle height adjusting device according to the embodiment of the present invention.
FIG. 3 is a schematic plan view showing a combination of a support plate and a spring support constituting the vehicle height adjusting device according to the embodiment of the present invention.
FIG. 4 is a schematic perspective view of a spring support constituting the vehicle height adjusting device according to the embodiment of the present invention.
FIG. 5 is a schematic plan view of a support plate constituting the vehicle height adjusting device according to the embodiment of the present invention.
FIG. 6 is a schematic plan view of a knock pin plate constituting the vehicle height adjustment device according to the embodiment of the present invention.
[Explanation of symbols]
100 Support plate 200 Hydraulic jack (vertical movement mechanism)
300 Spring Support 310 Flange 400 Knock Pin 500 Knock Pin Plate 510A, 510B, 510C, 510D Step 600 Base Plate 700 Coil Spring

Claims (5)

In a vehicle height adjusting device that is interposed between a base plate and a coil spring provided in a lower arm of an automobile and adjusts the vehicle height, a support plate attached to the base plate, and a vertical movement mechanism placed on the support plate And a spring support that is moved up and down by the vertical movement mechanism, and at least three knock pins are erected on the same circumference at equal intervals on the support plate. Is provided with a flange portion for receiving the lower end of the coil spring, and a substantially stepwise knock pin plate having a plurality of step portions for receiving the knock pin is suspended and attached to the flange portion in the same relationship as the arrangement of the knock pin, increasing the spring support to the top by the vertical movement mechanism, the knock pin pre Stepped portion positioned lowermost among the stepped portion of the bets is positioned above the knock pin and releases the vertically moving mechanism, a vehicle height adjustment device, characterized in that only the knock pin is subjected to the spring support. 2. The vehicle height adjusting device according to claim 1, wherein an outer diameter of the vertical movement mechanism is smaller than an inner diameter of the coil spring, and the vertical movement mechanism enters the inside of the coil spring. The vehicle height adjusting device according to claim 1, wherein the vertical movement mechanism is a hydraulic jack. 4. The vehicle height adjustment according to claim 1, wherein the spring support is a cylindrical body having a bottomed cylindrical shape, and the flange portion is provided at a lower end portion of the spring support. apparatus. 5. The vehicle height adjusting device according to claim 1, wherein a tip of the knock pin has a conical shape, and a step portion of the knock pin plate matches a shape of the tip of the knock pin.

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