JPH0512260U - Car seat with lifter - Google Patents

Abstract

(57) [Abstract] [Purpose] To prevent the lateral displacement of the cover and improve the appearance quality. An annular groove 32 is formed on the outer peripheral surface of the shaft 31 of the operation knob 21, and a protrusion projecting into the annular groove 32 is formed around the hollow portion of the through hole 5 in the cover 4. The feature is that the wall 41 is formed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a vehicle seat with a lifter, and more particularly to a vehicle seat with a lifter in which a shaft of an operation knob for operating the lifter mechanism penetrates through a through hole formed in a cover that covers a lower side of a seat cushion that is lifted and lowered by the lifter mechanism. is there.

[0002]

[Prior art and its problems]

 Conventionally, in a vehicle seat with lifter, as shown in FIGS. 3 and 4, a shaft 4 of an operation knob 2 for operating the lifter mechanism 1 is formed in a cover 4 that covers a lower side surface of a seat cushion SC that is lifted and lowered by the lifter mechanism 1. It penetrates through the through hole 5. The cover 4 is provided along the front-rear direction on the side surface of the seat cushion SC to cover the lower side surface of the seat cushion SC, and the rear end portion 4a of the cover 4 is fixed to the lower end portion of the seat back SB. A through hole 5 through which a shaft 3 for operating the lifter mechanism 1 penetrates is formed in a front portion 4b of the cover 4, and an outer end portion 3a of the shaft 3 for rotating the shaft 3 is formed. The operation knob 2 is attached. A gear 6 is attached to the inner end portion 3b of the shaft 3, and when the operation knob 2 is operated, the shaft 3 and the gear 6 rotate, and the rotation of the gear 6 operates the lifter mechanism 1, The seat cushion SC moves up and down. In such a vehicle seat with lifter, the rear end portion 4a of the cover 4 is fixed to the lower end portion of the seat back SB, but only the shaft 3 penetrates through the through hole 5 in the front portion 4b of the cover 4. Therefore, there is a problem that the front portion 4b of the cover 4 is laterally shaken and it is difficult to operate the operation knob 2. Further, there is a problem that the inside is exposed from the through hole 5 of the cover 4 and the appearance quality is deteriorated. Then, this invention is made in order to eliminate the said trouble, and it aims at preventing a horizontal blurring of the front part of a cover, and preventing deterioration of external appearance quality.

[0003]

[Means and Actions for Solving the Problems]

 In order to solve the above-mentioned problems, in the automobile seat with lifter according to the present invention, the shaft of the operation knob is formed with an annular groove portion on the outer peripheral surface of the shaft, and the cover is provided around the hollow portion of the through hole. A protrusion wall is formed so as to protrude into the annular groove. In the through hole of the cover, a projecting wall that projects into the groove of the shaft is formed around the hollow part, and since this projecting wall projects into the annular groove formed on the outer peripheral surface of the vehicle interior, the projecting wall of the cover and the shaft Due to the groove portion of the cover, lateral blurring of the cover can be prevented. In addition, the protruding wall of the cover can prevent the inside of the cover from being exposed to the surface.

[0004]

【Example】

 An embodiment according to the present invention will be described with reference to FIGS. 1 and 2. Since the shaft and the cover are different in structure from the conventional product, the shaft and the cover will be described, and the other members are different from the conventional product. The same reference numerals are given and the description thereof is omitted. An annular groove 32 is formed on the outer peripheral surface of the shaft 31 of the operation knob 21, and a spline groove 33 is formed along the axial direction on the outer peripheral surface of the shaft from the groove 32 to the tip. There is. The operation knob 21 is splined in the spline groove 33 of the shaft 31, and when the operation knob 21 is operated, the shaft 31 rotates together with the operation knob 21, the lifter mechanism 1 operates, and the seat cushion SC moves up and down. Move up and down. On the other hand, the cover 4 is formed with a projecting wall 41 projecting into the groove 32 of the shaft 31 around the hollow portion of the through hole 5. The cover 4 is formed with a protrusion 42 whose end portion projects toward the operation knob 21 along the circumferential direction on the hollow portion side of the through hole 5, and extends from the hollow portion side of the protrusion 42 to the periphery of the hollow portion of the through hole 5. A protruding wall 41 is formed at the bottom. The wall thickness of the protruding wall 41 is slightly smaller than the width X of the groove portion 32, and the tip end portion 43 thereof is located in the vicinity of the shaft 31 of the groove portion 32 so that the shaft 31 can rotate. A tubular portion 22 is formed on the operation knob 21, and an engagement groove that engages with the spline groove 33 of the shaft 31 is formed on an inner surface of the tubular portion 22. Further, the tubular portion 22 has a tubular portion. 22 is formed with a groove 23 for preventing it from coming off from the shaft 31, the V-shaped spring 7 is attached to the groove 23 and locked to the shaft portion 31, and the tip 24 of the tubular portion 22 is projected to the protruding wall 41. Overlaps.

In the vehicle seat with lifter according to the above configuration, since the protruding wall 41 of the cover 4 projects into the groove 32 formed in the shaft portion 31, the protruding wall 41 serves as the tip 24 of the tubular portion 22 of the operation knob 21. It is sandwiched by the shaft portion 31 and the shaft portion 31, and thus lateral protrusion of the protruding wall 41 can be prevented. Therefore, the front portion 4b of the cover 4 does not laterally shake, so that the operation knob 21 can be easily operated. Further, since the projecting wall 41 of the cover 4 projects into the groove 32 of the shaft portion 31, the projecting wall 41 can prevent the inside of the cover 4 from being exposed to the surface and improve the appearance quality.

[0006]

[Effect of the device]

 According to the present invention, an annular groove is formed on the outer peripheral surface of the shaft of the operation knob, and a protruding wall that protrudes into the annular groove is formed in the cover around the hollow portion of the through hole to cover the cover. Since the protruding wall is located in the groove of the shaft, the lateral displacement of the protruding wall is restricted in the groove of the shaft. Therefore, it is possible to prevent a lateral displacement of the front part of the cover, and it is possible to solve the problem that it is difficult to operate the operation knob, which is caused by the lateral displacement of the cover and the contact with the operation knob. Further, since the projecting wall of the cover projects into the groove of the shaft, it is possible to prevent the cover wall from being exposed to the surface inside the cover. Therefore, since the inside cannot be seen through the through hole of the cover, the appearance is good and the appearance quality can be improved.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional view of a seat cushion in an automobile seat using the structure of the present invention.

FIG. 2 is an enlarged view of a main part shown in FIG.

FIG. 3 is a perspective view of an automobile seat having a conventional structure.

FIG. 4 is a partial cross-sectional view taken along the line IV-IV in FIG.

[Explanation of symbols]

 21 Operation Knob 31 Shaft 4 Cover 41 Projecting Wall 32 Groove

Claims (1)

[Scope of utility model registration request] 1. A vehicle seat with a lifter, wherein a shaft of an operation knob for operating a lifter mechanism penetrates through a through hole formed in a cover that covers a lower side surface of a seat cushion that is lifted and lowered by the lifter mechanism. The vehicle seat with lifter, wherein an annular groove is formed on the outer peripheral surface of the shaft, and a protruding wall that protrudes into the annular groove is formed around the hollow portion of the through hole in the cover.