JP5480583B2 - Seat cushion side structure - Google Patents

Description

  The present invention relates to a side structure of a seat cushion of a vehicle seat.

  Conventionally, a reclining mechanism portion that tilts the seat back with respect to the seat cushion and a mechanism operation member that operates the reclining mechanism portion are disposed on the side of the seat cushion of the vehicle seat. In many cases, a covering cover is provided to cover the side from the side. As such a thing, there exist some which were disclosed by patent document 1, for example.

  This cover covers almost the entire side surface of the seat cushion including the reclining mechanism portion provided on the side surface of the seat cushion with a covering cover (decorative cover), and is provided on the reclining mechanism portion on the side of the covering cover. A mechanism operating member (operating handle) that is connected to the shaft and operates the reclining mechanism is disposed so as to overlap the covering cover on the left and right.

Japanese Utility Model Publication No. 62-75733

  However, in the thing of the said patent document 1, since the coating | covering cover has covered substantially the whole side surface of the seat cushion containing a reclining mechanism part, a coating | coated cover becomes large, handling is inconvenient, and an assembly | attachment is not easy. In addition, the mechanism operation member and the covering cover are arranged so as to be overlapped on the left and right, and both the mechanism operation member and the covering cover cover a part of the reclining mechanism part. In the cover, there is a part that is wasted. As a result, the covering cover is expensive in terms of material.

  An object of the present invention is to provide a side structure of a seat cushion in which a covering cover can be easily handled and can be easily assembled, and the covering cover can be made at a low cost in terms of material.

In order to solve the above-mentioned problem, the invention of claim 1 is provided with a mechanism operation member for operating the reclining mechanism section on a side surface of the seat cushion provided with a reclining mechanism section for tilting the seat back with respect to the seat cushion. And a side structure of a seat cushion provided with a covering cover that covers a side surface of the seat cushion from the side, wherein the mechanism operation member covers at least the reclining mechanism portion from the side, and the mechanism operation member is A substantially circular mechanism covering portion that covers the reclining mechanism portion, and an operation lever portion protruding from the mechanism covering portion toward the outer peripheral side, and the mechanism covering portion is configured to operate the mechanism lever portion when operating the operation lever portion. The reclining mechanism part is disposed at the substantially central part so that the substantially central part of the covering part can be pivoted. A connecting shaft connected to the connecting portion by rotation of the mechanism covering portion in accordance with the operation of the operating lever portion. The reclining mechanism portion is operated via the seat cushion so that the seat back can be tilted with respect to the seat cushion, and the covering cover is formed by at least the mechanism operating member among other portions than the reclining mechanism portion on the side surface. Provided is a side structure of a seat cushion which is configured to cover an uncovered portion from the side.

  According to the first aspect of the present invention, the mechanism operating member covers at least the reclining mechanism portion from the side, and the covering cover is covered by the mechanism operating member among other portions other than the reclining mechanism portion on the side surface of the seat cushion. Cover the uncovered part from the side.

  As a result, the covering cover can be made smaller than the conventional one by covering the reclining mechanism, making it easier to handle and assemble than the conventional one, and reducing the cost of materials compared to the conventional covering cover. Can be planned.

The mechanism operation member includes a substantially circular mechanism cover portion and an operation lever portion, and the mechanism cover portion has an approximate center of the mechanism cover portion as a center of rotation when the operation lever portion is operated. It is connected to the reclining mechanism so that it can rotate. The covering cover covers a portion of the side surface that is not covered with the mechanism covering portion.

  As a result, even if the mechanism covering portion rotates during operation of the operation lever portion, the reclining mechanism portion can be always covered, the efficiency of the material of the mechanism covering portion can be improved, and the side of the seat cushion can be improved. The portion not covered with the mechanism covering portion may be covered with the covering cover, and the covering cover can be reduced in size efficiently.

It is the side view which abbreviate | omitted a part of vehicle seat which has the side structure of the seat cushion of one Embodiment of this invention. It is sectional drawing of the side structure which follows the II-II line of FIG. It is sectional drawing of the side structure which follows the III-III line of FIG. It is a disassembled perspective view of one Embodiment of a reclining mechanism part. It is the side view which abbreviate | omitted a part of vehicle seat of the state which operated the mechanism operation member and rotated the mechanism coating | coated part.

  Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings. FIG. 1 is a side view in which a part of a vehicle seat having a side structure of a seat cushion according to an embodiment of the present invention is omitted, and FIG. 2 is a cross-sectional view of the side structure taken along line II-II in FIG. 3 is a cross-sectional view of a side structure taken along line III-III in FIG.

  The side structure 1 of the seat cushion of the present invention includes a mechanism operation member 2 and a covering cover 3. In this embodiment, the mechanism operation member 2 and the covering cover 3 are made of a synthetic resin plate.

  The mechanism operation member 2 includes a circular mechanism cover portion 21 and an operation lever portion 22 that operates the mechanism operation member 2. The operation lever portion 22 is formed integrally with the mechanism covering portion 21 so as to protrude forward from the mechanism covering portion 21.

  In this embodiment, a plate-like gap prevention portion 23 extending downward from the operation lever portion 22 is provided below the operation lever portion 22. The gap prevention portion 23 prevents a gap from being formed between the operation lever portion 22 and the cover 3 so that a finger is not caught in the gap when the operation lever portion 22 is operated.

  The mechanism covering portion 21 is configured with a diameter larger than the diameters of a guide bracket 41 and an internal gear 42 of the reclining mechanism portion 4 to be described later, and as shown in FIG. A connecting shaft 46 for connecting the reclining mechanism section 4 and the mechanism covering section 21 and a connecting section 21a connected non-rotatably are provided. Here, the reclining mechanism unit 4 used in this embodiment will be described.

  As shown in FIG. 1, the reclining mechanism unit 4 has a seat with respect to the seat cushion 51 in a vehicle seat that includes a seat cushion 51 and a seat back 52 rotatably connected to the seat cushion 51. The back 52 is appropriately tilted so that the angle with respect to the seat cushion 51 can be adjusted.

  As shown in FIG. 4, the reclining mechanism portion 4 of this embodiment includes a circular guide bracket 41 having a guide groove (not shown) attached to one of the seat cushion 51 and the seat back 52, and the seat cushion 51. And a circular internal gear 42 having internal teeth 42a attached to either the seat back 52 or the other.

  In this embodiment, the guide bracket 41 is attached to the seat back 52, and the internal gear 42 is attached to the seat cushion 51. However, the internal gear 42 is attached to the seat cushion 51, and the guide bracket is attached to the seat back 52. 61 can also be attached.

  The reclining mechanism section 4 includes a plurality of (four in this example) lock gears 43 arranged in parallel in the circumferential direction between the guide bracket 41 and the internal gear 42. On the inner side in the radial direction, a rotatable cam 44 that moves the lock gear 43 in the radial direction is provided.

  The reclining mechanism unit 4 includes a lock spring 45 made of a spiral spring at the center of the guide bracket 41. The outer peripheral end of the lock spring 45 is engaged with the guide bracket 41, and the inner peripheral end thereof is engaged with the rotating cam 44. The rotating cam 44 is always attached to the guide bracket 41 in FIG. It is energized counterclockwise.

  A connecting shaft 46 (shown in FIG. 3) connected to the connecting portion 21 a of the mechanism covering portion 21 is provided at the center of the rotating cam 44 from a circular center hole 42 b provided in the internal gear 42. The oval holes 44a are connected so as to be non-rotatable.

  As a result, the mechanism operating member 2 is connected to the reclining mechanism portion 4 via the connecting shaft 46 as shown in FIG. 1, and the mechanism covering portion 21 is concentric with the guide bracket 41 and the internal gear 42 of the reclining mechanism portion 4. It is arranged. Then, by operating the operating lever portion 22, the mechanism covering portion 21 is rotated with respect to the guide bracket 41 and the internal gear 42, and the rotating cam 44 can be rotated when rotating.

  In the normal state where the operation lever 22 is not operated, the reclining mechanism unit 4 configured as described above is urged by the urging force of the lock spring 45 in the counterclockwise direction of FIG. The four engaging claws 44b provided on the rotating cam 44 press the lock gears 43, respectively.

  By this pressing, each lock gear 43 moves radially outward along the guide groove of the guide bracket 41, and each external tooth 43 a provided on the outer periphery of each lock gear 43 meshes with the internal tooth 42 a of the internal gear 42. . In this state, the guide bracket 41 and the internal gear 42 are locked, and the seat back 52 is fixed to the seat cushion 51.

  On the other hand, from this state, as shown in FIG. 5, the operation lever portion 22 is operated to rotate the mechanism covering portion 21 counterclockwise in FIG. As a result, the rotating cam 44 rotates in the clockwise direction in FIG. 4 against the urging force of the lock spring 45, and the engaging claw portions 44 b of the rotating cam 44 each move to the lock gear 43. It enters into the locking groove 43b provided in.

  When entering the locking groove 43b, the lock gears 43 move in the radially inward direction along the guide grooves of the guide bracket 41, and the meshing between the external teeth 43a and the internal teeth 42a of the internal gear 42 is released. . In this state, the guide bracket 41 and the internal gear 42 are unlocked, and the seat back 52 is tiltable with respect to the seat cushion 51.

  Returning to FIG. 1, the covering cover 3 will be described. In this embodiment, the covering cover 3 laterally covers the non-covering portion that is not covered by the mechanism covering portion 21 of the mechanism operating member 2 among the portions other than the reclining mechanism portion 4 on the side surface 51a of the seat cushion 51. It is composed of a size that can be covered.

  The covering cover 3 configured as described above is fixed to the seat cushion 51. In this state, the covering cover 3 is hardly overlapped with the mechanism covering portion 21 on the left and right, but the operation lever portion 22 and the gap prevention portion 23 of the mechanism operating member 2 are overlapped with the left and right.

  With the above configuration, since the circular mechanism covering portion 21 is disposed concentrically with the guide bracket 41 and the internal gear 42 of the reclining mechanism portion 4, the mechanism covering portion 21 is rotated. However, the area covered by the mechanism covering portion 21 does not change, and the reclining mechanism portion 4 can be always covered, and the minimum size that can cover the reclining mechanism portion 4 can be achieved.

  On the other hand, when the operation lever portion 22 is operated, the operation lever portion 22 and the gap prevention portion 23 move upward, but the covering cover 3 is interposed between the operation lever portion 22 and the gap prevention portion 23 and the seat cushion 51. It is arranged. Therefore, even after the operation lever portion 22 and the gap prevention portion 23 are moved, corresponding portions of the side surface of the seat cushion 51 before the movement of the operation lever portion 22 and the gap prevention portion 23 can be covered with the covering cover 3.

  In the above-described embodiment, the reclining mechanism unit 4 has a circular guide bracket 41 and a circular internal gear 42, and the entire shape is circular, but the reclining mechanism unit 4 However, it is not particularly limited and can be changed as appropriate.

  In addition, the “non-covered portion” referred to in the present invention includes the case where the seat cushion 51 includes a portion covered by the mechanism covering portion 21 in addition to a portion not covered at all by the mechanism covering portion 21. Therefore, the mechanism covering portion 21 and the covering cover 3 may slightly overlap each other.

DESCRIPTION OF SYMBOLS 1 Side structure 2 Mechanism operation member 3 Cover cover 4 Reclining mechanism part 21 Mechanism cover part 22 Operation lever part

Claims (1)

The side of the seat cushion provided with a reclining mechanism for tilting the seat back with respect to the seat cushion is provided with a mechanism operating member for operating the reclining mechanism, and covers the side of the seat cushion from the side. A side structure of a seat cushion provided with a covering cover,
The mechanism operation member covers at least the reclining mechanism part from the side,
The mechanism operating member includes a substantially circular mechanism covering portion that covers the reclining mechanism portion, and an operation lever portion that protrudes from the mechanism covering portion to the outer peripheral side,
The mechanism covering portion includes the reclining mechanism portion, a mechanism operating member, and a mechanism operating member at the substantially central portion so that the mechanism covering portion can rotate around the substantially central portion of the mechanism covering portion when the operation lever portion is operated. Through a connecting shaft connected to the connecting portion by rotation of the mechanism covering portion accompanying the operation of the operating lever portion. The reclining mechanism is operated and the seat back can be tilted with respect to the seat cushion,
The side cover of the seat cushion, wherein the covering cover is configured to cover from the side at least a portion of the side surface other than the reclining mechanism portion that is not covered by the mechanism operating member. Construction.

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