JP2004135766A - Slide mechanism of seat - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To efficiently use a limited space and to increase a mechanical strength. <P>SOLUTION: This slide mechanism has a connection member 20 provided at a seat outer shell 18, and a guide means 21 provided at a seat inner shell 3 for guiding the connection member 20. The guide means 21 has a guide groove 30 for sliding the connection member 20 therein, and a fitting groove 31 for fitting the connection member 20 to the guide groove 30. The connection member 20 has a sliding portion 32 fixed to the seat outer shell 18 at one end and sliding in the guide groove 30, a head portion 33 provided at the other end opposed to the one end and passing through the guide groove 30 and the fitting groove 31, and engagement pieces 34 provided at positions across the guide groove 30 relative to the head portion 33 and not passing through the guide groove 30 but passing through the fitting groove 31. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a seat slide mechanism. More specifically, the present invention relates to a seat slide mechanism having a connecting member on one side of a seat base member and a seat body, and a guide means on the other side for guiding the connecting member.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, there is a chair that can adjust the front and rear positions of a seat (see Patent Document 1). By adjusting the front and rear positions of the seat, for example, when using a keyboard of a personal computer on a desk, etc., the position of the seat with respect to the backrest, armrest, etc. is optimized according to the individual difference due to the difference in the physique of the seated person. Can be adjusted as follows.
[0003]
In this chair, as shown in FIGS. 30 and 31, the seat plate 180 is configured as follows so that it can slide back and forth with respect to the seat plate mounting bracket 70. That is, a mounting hole 160 including a large-diameter hole 160a and an elongated hole 160b narrower than the large-diameter hole 160a is formed in the seat plate mounting bracket 70, and a mounting shaft 190 having a flange 190a at the tip thereof is formed on the seat plate 180. It is protruding. The flange 190a is slightly smaller in diameter than the large-diameter hole 160a, and the diameter of the mounting shaft 190 is equal to or slightly smaller than the width of the long hole 160b. Then, the stopper 220 is fixed to the rear portion of the seat plate 180 in a state where the flange 190a of the mounting shaft 190 is inserted into the large-diameter hole 160a of the mounting hole 160, and the mounting shaft 190 is moved to the long hole 160b. When the mounting shaft 190 slides in the elongated hole 160b, the seat plate 180 can slide back and forth with respect to the seat plate mounting bracket 70, while the stopper 220 contacts the seat plate mounting bracket 70, The mounting shaft 190 is prevented from reaching the large-diameter hole 160 a of the mounting hole 160, so that the seat plate 180 does not come off from the seat plate mounting bracket 70.
[0004]
[Patent Document 1]
JP-A-2002-136385
[0005]
[Problems to be solved by the invention]
However, in the conventional seat slide mechanism, it is necessary to provide the large-diameter hole 160a having a width larger than the long hole 160b, so that the mechanical strength around the long hole 160b and the mounting shaft 190 is reduced. After the mounting shaft 190 is mounted, the mounting shaft 190 does not reach the large-diameter hole 160a, so that a limited space is wasted. Further, since it is necessary to provide the large-diameter hole 160a, the length of the long hole 160b is also limited, and the degree of freedom in setting the sliding range of the seat is reduced.
[0006]
Therefore, an object of the present invention is to provide a slide mechanism of a seat that can effectively use a limited space and can increase mechanical strength.
[0007]
[Means for Solving the Problems]
In order to achieve this object, an invention according to claim 1 is provided on a seat base member supported by a leg, a seat main body forming a seating surface, and provided on one of the seat base member or the seat main body and integrally formed with the one. A connecting member that is relatively movable with respect to the other of the seat base member and the seat body, and a guide provided on the other side to guide the connecting member, wherein the seat body is slidable with respect to the seat base member. In a slide mechanism of a certain seat, the guide means has a guide groove in which the connecting member slides, and a mounting groove for mounting the connecting member in the guide groove, and the connecting member has one end side formed in the seat base member or the seat body. A sliding portion that is attached and slidable in the guide groove, a head that is provided at an end opposite to one end thereof and that cannot pass through the guide groove and the mounting groove, Provided at a position sandwiching the guide groove Although both the guide groove is not pass through so that the mounting groove and an engaging piece can pass through.
[0008]
Therefore, after the sliding portion is inserted into the guide groove and the engagement piece is inserted into the mounting groove, the connecting member can be attached to one of the seat base member or the seat body. Thereby, the seat base member and the seat body are slidably connected. After the connection, the head and the engagement piece engage with the guide groove, and the opposite side of the head is provided with the seat base member or the seat body, so that the connection member comes off from the guide groove. Never. Since a large groove or hole for allowing the head to pass through is not formed, limited space can be effectively used without wasting, and a decrease in mechanical strength around the guide groove and the connecting member can be prevented.
[0009]
According to a second aspect of the present invention, in the seat slide mechanism according to the first aspect, the surface of the head in contact with the seat base member or the seat body is a curved surface. Therefore, the contact between the head and the member facing the head becomes a point contact or a line contact, and the contact area can be reduced to reduce the frictional resistance when the connecting member slides. In addition, it is possible to prevent the member facing the head from being scratched by the angular portion, and prevent the member facing the head from being damaged.
[0010]
According to a third aspect of the present invention, in the seat slide mechanism according to the first or second aspect, the sliding portion has a prism shape. Therefore, rotation of the sliding portion in the guide groove is prohibited.
[0011]
According to a fourth aspect of the present invention, in the seat slide mechanism according to any one of the first to third aspects, the connecting member is fixed to one of the seat base member and the seat body by a mounting screw. The screw for use has a length of at least half or more of the length of the connecting member in the axial direction of the mounting screw. Therefore, the mounting screw functions as fixing means of the connecting member, and also functions as a core material of the connecting member, so that the mechanical strength of the connecting member is increased.
[0012]
According to a fifth aspect of the present invention, in the seat slide mechanism according to any one of the first to fourth aspects, an inclination for guiding the connecting member to the mounting position is provided around the mounting position where the connecting member is mounted. ing. Therefore, the connecting member is positioned at the mounting position by moving on the slope.
[0013]
According to a sixth aspect of the present invention, in the seat slide mechanism according to any one of the first to fifth aspects, the length of the mounting groove in the longitudinal direction of the guide groove is equal to the length of the sliding portion in the longitudinal direction. It is shorter than it is. Therefore, it is possible to prevent a situation in which the sliding portion enters the mounting groove and hinders smooth sliding of the connecting member.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the configuration of the present invention will be described in detail based on an embodiment shown in the drawings.
[0015]
1 to 16 show an embodiment of a seat slide mechanism according to the present invention. The seat slide mechanism includes a seat base member 18 supported by the legs, a seat body 19 forming a seating surface, and a seat base member 18 or the seat body 19 provided on one of the seat base members and integrated with the one. It has a connecting member 20 that relatively moves with respect to the other of the member 18 and the seat body 19, and guide means 21 provided on the other to guide the connecting member 20. It is configured to be slidable. The guide means 21 has a guide groove 30 in which the connecting member 20 slides, and a mounting groove 31 for mounting the connecting member 20 in the guide groove 30. The connecting member 20 includes a sliding portion 32 having one end attached to the seat base member 18 or the seat body 19 and slidable in the guide groove 30, and a guide groove 30 provided at an end opposite to the one end. And a head 33 that cannot pass through the mounting groove 31, and is provided at a position sandwiching the guide groove 30 with respect to the head 33, and the guide groove 30 cannot pass but the mounting groove 31 can pass. And an engagement piece 34.
[0016]
The seat base member 18 of the present embodiment is made of, for example, a synthetic resin and is formed in a so-called shell shape having a thin plate structure. However, the material of the seat base member 18 is not particularly limited as long as the required mechanical strength and the like are satisfied (for example, a metal material may be used). There is no particular limitation as long as 19 is a slidable shape (for example, it may be a frame or a U-shaped frame). Hereinafter, in the present embodiment, the seat base member is referred to as a seat outer shell 18. Inside the seat outer shell 18, for example, a plurality of ribs 35 for reinforcement are formed (see FIG. 7). The form of the legs supporting the seat outer shell 18 is not particularly limited. For example, although not shown, one leg axle extending toward the ground contact surface is attached to the seat outer shell 18 and a plurality of (generally five or four) leg blades extending radially are attached to the leg axle. A so-called swivel chair may be configured. Alternatively, four legs extending toward the ground contact surface may be attached to the seat outer shell 18. Although not shown, a backrest, an armrest, or the like may be attached to the seat outer shell 18.
[0017]
The seat body 19 of the present embodiment includes a seat inner shell 3 slidably attached to the seat outer shell 18, a cushioning material 2 having a cushioning property placed on the seat inner shell 3, and a state in which the cushioning material 2 is wrapped. And the upper upholstery 1 which is fastened to the seat inner shell 3. The bottom surface of the seat inner shell 3 (ie, the side facing the seat outer shell 18) is supported by all or a part of the surface of the seat outer shell 18 that faces the seat inner shell 3, and the upper surface of the seat inner shell 3 is supported. The side (that is, the side facing the cushion material 2) is received by the head 33 of the connecting member 20.
[0018]
For example, in this embodiment, the connecting member 20 is attached to the seat outer shell 18, and the guide means 21 is provided on the seat inner shell 3. However, the connecting member 20 may be attached to the seat inner shell 3 and the guide means 21 may be provided on the seat outer shell 18. The number of the connecting members 20 and the guide means 21 is not particularly limited, but a plurality of connecting members 20 and guide members 21 are provided from the viewpoint of preventing the seat body 19 from being turned up or rotated with respect to the seat outer shell 18. Is preferred. For example, in this embodiment, four connecting members 20 are provided on the seat outer shell 18 and four guide means 21 are provided on the seat inner shell 3 (see FIGS. 7 and 8). The pair of the connecting member 20 and the guide means 21 are arranged, for example, so as to be located at substantially four corners of the seat surface.
[0019]
The connecting member 20 is made of, for example, a synthetic resin, and the sliding portion 32, the head 33, and the engaging piece 34 are integrally formed using a mold. The head 33 and the engagement piece 34 protrude from the sliding portion 32 in the width direction of the guide groove 30 so as to engage with the edge of the guide groove 30. Therefore, the head 33 and the engagement piece 34 do not pass through the guide groove 30. In addition, the head 33 and the engagement piece 34 of the present embodiment protrude in both directions of the width of the guide groove 30. Therefore, even if the connecting member 20 is inclined with respect to the guide groove 30, the connecting member 20 does not fall out of the guide groove 30. Further, since the connecting member 20 is supported by the edges on both sides of the guide groove 30, the connecting member 20 is stabilized, the rattling of the seat body 19 is prevented, and the connection strength between the seat body 19 and the seat outer shell 18. Also increase.
[0020]
The sliding portion 32 has, for example, a prismatic shape. Therefore, rotation of the sliding portion 32 in the guide groove 30 is prohibited. For example, the sliding portion 32 of the present embodiment has a rectangular parallelepiped shape having a long side in the longitudinal direction of the guide groove 30. By forming the sliding portion 32 long in the longitudinal direction of the guide groove 30, the contact area of the sliding portion 32 with the guide groove 30 increases, so that the amount of play of the connecting member 20 is suppressed, and the play is reduced. , The strength of the connecting member 20 is also increased. The length of the sliding portion 32 in the width direction of the guide groove 30 is set to be equal to or slightly smaller than the width of the guide groove 30 so that the sliding portion 32 can slide smoothly in the guide groove 30. You.
[0021]
The head 33 projects in both directions in the width direction of the guide groove 30 across the entire end of the sliding portion 32 in the sliding direction, and the head 33 and the sliding portion 32 form a substantially T-shape. (See FIGS. 3 and 5). For example, in the present embodiment, the surface 33 a of the head 33 facing the seat inner shell 3 is a curved surface that is rounded in the sliding direction of the connecting member 20. Therefore, the contact between the head 33 and the seat inner shell 3 is a line contact, and the frictional resistance when the connecting member 20 slides can be reduced. Furthermore, the side of the surface 33b of the head 33 facing the cushion material 2 is also rounded to have a curved surface that is rounded in the sliding direction of the connecting member 20. Therefore, it is possible to prevent the cushion member 2 from being scratched at the angular portion when the connecting member 20 slides, and to prevent the cushion member 2 from being damaged.
[0022]
The guide groove 30 is formed in a direction for guiding the connecting member 20 in the front direction and the back direction of the seated person. For example, in the present embodiment, the length L1 of the mounting groove 31 in the longitudinal direction of the guide groove 30 is shorter than the length L2 of the sliding portion 32 in the longitudinal direction. Therefore, the sliding portion 32 is prevented from entering the mounting groove 31, and a situation in which the smooth sliding of the connecting member 20 is prevented is prevented. The size of the engaging piece 34 is set equal to or slightly smaller than the mounting groove 31 so that the engaging piece 34 can pass through the mounting groove 31. On the side of the engagement piece 34 facing the seat outer shell 18, an inclined surface 34 a is formed which descends from the protruding end of the engagement piece 34 toward the sliding portion 32. This facilitates insertion of the engagement piece 34 into the mounting groove 31. Further, for example, in the present embodiment, a guide frame 36 is formed around the guide groove 30 according to the moving range of the head 33. As the sliding portion 32 slides in the guide groove 30, the head 33 slides in the guide frame 36. Since the connecting member 20 is also supported by the guide frame 36, the connecting member 20 is stabilized, rattling of the seat body 19 is prevented, and the connection strength between the seat body 19 and the seat outer shell 18 is increased.
[0023]
In the illustrated example, the two connecting members 20a arranged on the back side of the occupant are shorter in length in the sliding direction than the two connecting members 20b arranged on the front side of the occupant. (See FIGS. 2 to 5). This is because a space for mounting an armrest (not shown) is considered. As described above, the size of the connecting member 20 may be appropriately set in consideration of the space in the seat outer shell 18.
[0024]
The connecting member 20 is fixed to the seat outer shell 18 by, for example, screwing, after the sliding portion 32 is inserted into the guide groove 30 and the engaging piece 34 is inserted into the mounting groove 31. The mounting screw 37 has a length of at least half the length L3 of the connecting member 20 in the axial direction of the mounting screw 37, and in the present embodiment, for example, It has a length extending from the bottom surface to the vicinity of the head 33. The screw hole 38 provided in the connecting member 20 is set at, for example, a centroid position of the connecting member 20 in a plan view. In this case, the mounting screw 37 functions as a core material of the connecting member 20, and the mechanical strength of the connecting member 20 is increased. As the material of the mounting screw 37, it is preferable to use a metal material having high rigidity (for example, steel material). When the connecting member 20 is screwed to the seat outer shell 18, the rotation of the connecting member 20 is prohibited because the sliding portion 32 has a prismatic shape, and the engaging member 34 comes into contact with the seat inner shell 3 so that the connecting member 20 is in contact. Does not escape in the axial direction of the mounting screw 37, so that screwing work becomes extremely easy.
[0025]
In the present embodiment, a positioning means 40 for positioning the connecting member 20 at a predetermined mounting position is provided on a member to which the connecting member 20 is mounted (the seat outer shell 18 in the present embodiment). The positioning means 40 has at least a slope 39a for guiding the connecting member 20 to the mounting position around the mounting position where the connecting member 20 is mounted, for example, all around the mounting position or a part of the entire circumference. For example, the positioning means of the present embodiment includes a pair of wall portions 41 that are arranged to face the surface of the connecting member 20 that slides on the guide groove 30 and regulate the movement of the connecting member 20. It is constituted by a pair of taper portions 39 which are arranged so as to face the surface in the direction in which the guide groove 30 slides and have an inclined 39a for guiding the connecting member 20 to the mounting position. The inclination of the tapered portion 39 is formed such that the space surrounded by the wall portion 41 and the tapered portion 39 expands outward. The height of the tapered portion 39 and the wall portion 41 is set to be less than the height from the mounting surface of the connecting member 20 to the engaging piece 34. Therefore, the connecting member 20 is positioned at the mounting position surrounded by the tapered portion 39 and the wall portion 41 by moving on the tapered portion 39 (see FIG. 6). Accordingly, even if the mounting position cannot be directly visually recognized, the connecting member 20 can be easily positioned and mounted on the seat outer shell 18. Further, the tapered portion 39 and the wall portion 41 also have a function as, for example, a rib for reinforcing the seat outer shell 18. The configuration of the positioning means 40 is not limited to the example of the present embodiment. For example, three of the four sides surrounding the connecting member 20 are regulated by the wall 41 and the other side is provided with the tapered part 39. May be. Further, for example, a taper portion 39 having an inclination 39a for guiding the connecting member 20 to the mounting position may be provided on all four sides surrounding the connecting member 20.
[0026]
Further, the chair of the present embodiment has a seat position for switching between an unlocked state in which the relative movement of the seat body 19 and the seat base member 18 is allowed and a locked state in which the relative movement of the seat body 19 and the seat base member 18 are prohibited. Means 22 are provided. The seat positioning means 22 includes, for example, an operation lever 23 provided swingably on the seat inner shell 3, a first engagement portion 24 provided on the operation lever 23, and a second engagement member provided on the seat outer shell 18. The first engaging portion 24 and the second engaging portion 25 are engaged by operating the operation lever 23 to prohibit the relative movement between the seat body 19 and the seat base member 18. And an unlocked state in which the relative movement between the seat body 19 and the seat base member 18 is allowed by releasing the engagement between the first engagement portion 24 and the second engagement portion 25 by operating the operation lever 23. I do. For example, in the present embodiment, a material having flexibility and elasticity (for example, a relatively soft synthetic resin) is adopted as a material of the seat inner shell 3, and two cuts 26 are formed in the seat inner shell 3. A part of the seat inner shell 3 sandwiched between the two cuts 26 is a swingable operation lever 23. The operation lever 23 is provided, for example, at a central position on the rear end side of the seat. In this case, since the operation lever 23 is hidden by a backrest or the like (not shown), the appearance of the chair can be improved. The first engaging portion is, for example, a ridge 24 provided integrally with the operation lever 23 so as to protrude toward the seat outer shell 18. The seat outer shell 18 is provided with a concave portion 25 into which the ridge 24 is fitted as a second engaging portion. Here, by providing a plurality of concave portions 25, it is possible to adjust the positions of the seats in a plurality of steps. Therefore, for example, in the present embodiment, three concave portions 25 are provided so that three-stage position adjustment is possible. The operation lever 23 is set at a position where the ridge 24 is fitted into the recess 25 at the initial position. The operation lever 23 is provided with a recess 42 into which an operator's finger is inserted during operation in order to improve operability (see FIG. 10). A notch 43 is formed at the central position on the rear end side of the seat outer shell 18 (see FIG. 7) so that the operator can easily insert his hand into the rear end of the seat during operation. Therefore, when the operation lever 23 is swung so that the center of the rear end side of the seat body 19 is gripped and turned up by hand, the engagement between the ridge 24 and the recess 25 is released, and the seat body 19 is attached to the seat base member 18. It becomes slidable. On the other hand, when the hand is released from the operation lever 23, the operation lever 23 elastically returns to the initial position, the protrusion 24 is fitted into any of the recesses 25, and the seat body 19 cannot slide with respect to the seat base member 18. It becomes.
[0027]
Furthermore, the chair of this embodiment is provided with a terminal positioning structure for the upper lining 1. In this structure, the tightening cord 5 is passed through the inside of the tubular member 4 of the peripheral edge 9 of the upper covering material 1 and pulled out to the outside from the openings 4a at both ends, and the tightening cord 5 is provided on the back side of the seat inner shell 3 from the inside. A step portion 6 that guides and positions the tightening string 5 so that the circumferential shape and the length of the tightening string 5 at the time of tightening is constant, and the tightening string 5 hooked on the step portion 6 is formed by the step. A state in which the strap 7 is hooked on the step 6 after the upper covering 1 is covered so as to wrap the cushion material 22 and the seat inner shell 3, provided with a stopper 7 for preventing falling off from the part 6. By tightening with, it is tightened along this stepped portion 6.
[0028]
As shown in FIG. 12, the upper covering material 1 is covered so as to cover the cushion material 2 supported by the seat inner shell 3, and comes off from the seat inner shell 3 by narrowing the peripheral edge 9 on the back side of the seat inner shell 3. It is fixed so as not to function as a seat surface side skin of a seat in which the cushion material 2 is accommodated. In the present embodiment, the tightening cord 5 passed through the inside of the cylindrical member 4 on the peripheral edge 9 of the upholstery 1 is used as a means for narrowing the peripheral edge 9 of the upholstery 1.
[0029]
The tubular member 4 is formed by rolling a tape material 4 ′ such as a tape-shaped cloth, a plastic sheet, synthetic leather, leather, or the like, and sewing the tape material 4 ′ to the upper fabric 1. In the present embodiment, the tape material 4 ′ as the tubular member 4 is closed so as to match the side edges 4 s to form a tubular shape, and then the side edges 4 s are located closer to the peripheral edge 9 of the upholstery material 1, in other words. The portion of the tubular member 4 through which the tightening string 5 passes is located at a position farther from the peripheral edge 9 of the upper upholstery 1 than the sewing location (represented by a seam 16) and sewn with a sewing machine. At this time, the overlapping edge 4 s of the tape material 4 ′ is sewn to the upper covering material 1 while taking care not to sew the thread directly into the tightening cord 5. At the same time, an extra edge 17 of the upper covering material 1 is cut off near the seam 16 with a scalpel (not shown) attached to the sewing machine. Further, when the tubular member 4 is sewn to the upper fabric 1, the tightening string 5 is confined together. For example, when the tape material 4 ′ is supplied while being rolled, the tightening string 5 is supplied so as to pass through the inside thereof, so that the tightening string 5 is freely enclosed in the tubular member 4.
[0030]
Here, a method of sewing the tape material 4 ′ will be briefly described. For example, a method of sewing the tape material 4 ′ in a state where the tape material 4 ′ is folded back so as to turn a rounded back to the peripheral edge 9 of the upper covering material 1 is adopted. On the contrary, in this embodiment, a method is employed in which sewing is performed in a state where the edge (edge) of the tape material 4 ′ that is rounded is close to the peripheral edge 9 of the upper covering material 1 (see FIG. 13). (See FIG. 14) Then, the upper upholstery 1 is turned over (see FIG. 15). In the case of the sewing method shown in FIG. 13, not only is the tubular member 4 exposed on the back of the seat, the appearance is poor, but also the edge (edge) and the seam 16 of the tubular member are connected to another member (for example, the seat outer shell). 18 and the like, there is a possibility of rubbing and gradually fraying. On the other hand, according to the sewing method shown in FIGS. 14 and 15, the edges (edges) of the upholstery material 1 and the tubular member 4 are hidden. In addition to improving the appearance, there is an advantage that the edges (seams) and the seam 16 are covered and concealed so that fraying hardly occurs.
[0031]
The fastening string 5 is cut at a position where both ends thereof are pulled out from the tubular member 4 when the sewing of the tape material 4 ′ is completed. In this state, the tightening cord 5 is movable in the longitudinal direction in the tubular member 4 and can be freely tightened or loosened. As described above, the tubular member 4 from which the tightening string 5 is pulled out from the openings 4a at both ends is formed along the peripheral edge 9 of the upper covering material 1.
[0032]
The stepped portion 6 is provided on the back side of the seat inner shell 3 so as to guide the tightening string 5 on the peripheral edge 9 of the upper covering material 1. The step portion 6 guides the tightening string 5 from the inside, and And make the circumference of the tightening cord 5 constant during tightening (see FIG. 9).
[0033]
For example, in the present embodiment, a groove is provided around the seat inner shell 3, and the step 6 is formed by utilizing the step of the groove (see a partially enlarged view of FIG. 10). In such a case, since the peripheral edge 9 of the upper upholstery 1 can be positioned while being housed in the groove, the appearance of the backing is improved. In addition, since the cross section of the seat inner shell 3 is formed in a crank shape, the rigidity against bending is increased, so that the seat inner shell 3 is more preferable as the core material forming the skeleton of the seat body 19. However, the form of the step 6 is not limited to this example, and the central portion 3a of the seat inner shell 3 is formed so as to protrude to the back side (that is, the side opposite to the cushion material 2), and the protruding central portion is formed. The step 6 may be provided by utilizing a step between the portion 3a and its surrounding portion. The shape and size of the step 6 define the shape and size of the opening surrounded by the peripheral edge 9 of the upholstery 1 at the time of tightening. What is necessary is just to determine suitably so that desired cushioning property may be obtained in consideration of the elasticity of the cushion material 2 and the like.
[0034]
In addition, it is preferable that the step part 6 is formed so that the step is higher than the thickness of the peripheral edge 9 of the upper upholstery 1 including the tightening cord 5. In such a case, the peripheral edge 9 of the upper upholstery 1, which is thicker than other ground portions by the passage of the tightening cord 5 on which the tape material 4 ′ is folded and over, is shaded by the step portion 6. Because it fits in a hidden manner, the unevenness of the back is eliminated, and the appearance is improved. Moreover, in this case, the peripheral edge 9 of the upholstery 1 does not protrude beyond the extension line of the most protruding surface of the seat (for example, the surface of the central portion 3a). Therefore, it is advantageous in that the upper upholstery 1 is prevented from rubbing against the outer seat shell 18 every time the seat inner shell 3 moves back and forth, and a smooth operation can be secured.
[0035]
The falling-off prevention claw 7 is a hooking claw provided to prevent the tightening string 5 hooked on the step portion 6 from dropping off the step portion 6. For example, in the case of the present embodiment, the falling-off preventing claws 7 are formed by a plurality of projections radially protruding from the central portion 3a to the outer peripheral side at a height flush with the surface of the central portion 3a. , FIG. 10). In this case, the drop-off preventing claws 7 may be arranged at equal intervals around the step portion 6, but in the case of the present embodiment, especially near the corner (curve) of the step portion 6 where the tightening string 5 is likely to come off. By arranging more, it is possible to more effectively prevent the falling-off (see FIG. 9). According to such a fall prevention claw 7, when the tightening string 5 is tightened around the stepped portion 6 or when the chair is used after tightening, the tightening string 5 is placed on the back side of the seat (that is, opposite to the cushion material 2). Side) is prevented. Therefore, it is possible to prevent the tightening string 5 from coming off the step 6 and the peripheral edge 9 of the tightening string 5 and the upholstery 1 from falling off. A through hole 13 slightly larger than the drop-off preventing claw 7 is provided on a portion of the seat inner shell 3 facing the drop-off preventing claw 7.
[0036]
At the tip of the drop-off preventing claw 7, a stopper piece 8 is provided to prevent the tightening string 5 from slipping over the drop-off preventing claw 7 (see FIG. 10). For example, in the present embodiment, the tip portion integrally formed so as to be folded substantially vertically toward the side of the upper covering material 1 is used as the retaining piece 8, but a separate member is attached to the tip of the drop-off preventing claw 7 and then removed. The stop piece 8 may be used. Needless to say, the falling-off preventing claw 7 and the retaining piece 8 are provided so that the peripheral edge 9 of the upholstery 1 can pass between them and the seat inner shell 3. For example, if the gap between the retaining piece 8 and the seat inner shell 3 is larger than the thickness of the peripheral edge 9, the peripheral edge 9 can pass without any problem, but this gap is smaller than the thickness of the peripheral edge 9. However, if the fall-off preventing claw 7 has sufficient flexibility, when the peripheral edge 9 is pushed between the retaining piece 8 and the seat inner shell 3, the fall-off preventing claw 7 warps to the seat back side. This gap can be passed. Further, in the terminal positioning structure of the present embodiment, since the through holes 13 are provided for each of the falling-off preventing claws 7, when the peripheral edge 9 is inserted between the falling-off preventing claw 7 and the seat inner shell 3, the falling-off preventing claw 7 is inserted. By slightly retracting the peripheral edge 9 passing by the side of the through hole 13, it is possible to pass the edge 9 so as to avoid the drop-off preventing claw 7.
[0037]
According to the terminal positioning structure of the upper covering material 1, when tightening the tightening string 5, the tightening string 5 is tightened along the periphery of the step 6, so that the tightening string 5 at the time of tightening is fixed by the step 6. Since it is positioned so as to have a circular shape and has a constant circular length, the tightening force is leveled no matter how strongly the tightening string 5 is tightened after positioning, and the circular shape and the circular length remain unchanged. Is homogenized. Therefore, it is possible to realize a constant tension by eliminating individual differences in tightening strength at the time of tightening, and to make the quality constant by eliminating variations between products.
[0038]
When tying the tightening string 5 in such a terminal positioning structure, it is preferable that the knot of the string be hidden behind the fall-off preventing claw 7 (see FIG. 16). If it is not hidden behind the drop-off preventing claws 7, the knob-shaped knot will be exposed around the step 6. However, by hiding behind the drop-off preventing claws 7, the appearance will be better.
[0039]
Here, in the chair of the present embodiment, the state in which the ridge 24 is fitted into the recess 25 by the return force due to the elasticity of the operation lever 23 (that is, the locked state in which the movement of the seat body 19 is prohibited) is maintained. However, it is preferable that some force is applied to assist the return when the return force is not sufficient. That is, for example, the operating lever 23 floats due to distortion during or after molding of the resin inner shell 3, and the return position shifts upward, or the return force of the operating lever 23 becomes weaker than an appropriate value due to long-term use. In a case where there is a possibility that the return force may occur (see FIG. 11), it is possible to maintain an appropriate locked state by applying a force assisting the return force. Therefore, the returning force of the operation lever 23 is assisted by using the tightening force of the tightening string 5. Hereinafter, a specific configuration will be described.
[0040]
The operating lever 23 guides the tightening string 5 of the upper-covered ground 1 from the inside to position the tightening string 5 and to make the circumferential shape and the circumferential length of the tightening string 5 constant during tightening. A step portion 6 'and a drop-off preventing claw 7' for preventing the tightening string 5 hooked on the step portion 6 'from dropping off from the step portion 6' are provided (FIGS. 9 and 9). 10). For example, the stepped portion 6 ′ and the drop-off preventing claw 7 ′ in this embodiment are located at substantially the same height and almost the same radial position as the stepped portion 6 and the drop-off preventing claw 7 closest to the operation lever 23 with the cut 26 therebetween. And a sharply bent portion is not formed in the tightening string 5 at the time of tightening. Further, the drop-off preventing claws 7 'provided on the operation lever 23 are provided so as to prevent the tightening string 5 from easily falling off the step 6' when a seated person or the like operates the operation lever 23 up and down. The width in the circumferential direction is wider and the cut in the radial direction is deeper than the fall-off preventing claw 7 (see FIGS. 9 and 10). In the present embodiment, the locking string 5 is hard to fall off, and thus the drop-off preventing claw 7 'is not provided, so that the locking piece 8 is not provided. However, the locking stopper 8 is attached to the tip of the drop-off preventing claw 7'. It may be provided that the tightening cord 5 is harder to fall off.
[0041]
Since the tightening string 5 of the upper upholstery 1 is hooked on the elastically deformable operating lever 23, the tightening string 5 is tightened even when the operating lever 23 floats. A force can be applied in a direction to return the lever 23 to the original position. In this case, since the returning force of the tightening string 5 is applied to the operating lever 23 in addition to the original returning force, even when the operating lever 23 warps due to the distortion of the seat inner shell 3 or the elastic force is deteriorated, for example. By assisting the return force, the operation lever 23 can be pressed down to maintain the locked state.
[0042]
An example of a procedure for assembling the seat in the seat slide mechanism configured as described above will be described. First, the sliding portion 32 of the connecting member 20 is inserted into the guide groove 30 provided in the seat inner shell 3, and then the engaging piece 34 is inserted into the mounting groove 31. Then, the cushion material 2 is placed on the upper surface of the seat inner shell 3, the cushion material 2 and the seat inner shell 3 are wrapped around the upholstery 1, and the periphery 9 of the upholstery 1 is turned to the back side of the core material, and then tightened. The string 5 is tightened, the peripheral edge 9 of the upholstery 1 is squeezed, and the upper upholstery 1 is stretched and fixed in a state where the cushion material 2 and the seat inner shell 3 are wrapped. After that, the connecting member 20 is positioned at the mounting position of the seat outer shell 18, and the connecting member 20 is screwed from the lower surface of the seat outer shell 18. Thus, the seat outer shell 18 and the seat body 19 are slidably connected. After the connection, the head 33 and the engagement piece 34 engage with the guide groove 30, and the opposite side of the head 33 is fixed to the seat outer shell 18. There is no escape from. Since the seat inner shell 3 is not formed with a large groove or a hole for allowing the head 33 to pass through, it is possible to prevent a decrease in mechanical strength around the guide groove 30 and the connecting member 20 and effectively use a limited space. Can be used.
[0043]
The above embodiment is an example of a preferred embodiment of the present invention, but the present invention is not limited to this, and various modifications can be made without departing from the gist of the present invention. For example, a seat base member 18 supported by a leg, a seat body 19 forming a seating surface, and a seat base member 18 or a seat body provided on one of the seat base member 18 or the seat body 19 and integrated therewith. A seat member having a connecting member which is relatively movable with respect to the other of the seat members, and a guide means provided on the other side for guiding the connecting member, wherein the seat body is slidable with respect to the seat base member; In the slide mechanism described above, the guide means 21 and the connecting member 20 may be configured as illustrated in FIGS.
[0044]
In the slide mechanism of the seat shown in FIGS. 17 and 18, the guide means 21 includes a guide groove 30 in which the connecting member 20 slides, and a guide member which allows the connecting member 20 to be attached to the guide groove 30 by being elastically deformed. And a stop 50. The connecting member 20 has a sliding portion 32 having one end attached to the seat base member 18 or the seat body 19 and slidable in the guide groove 30, and a guide groove provided at an end opposite to the one end. And a head 33 that cannot pass through. Therefore, when the head 33 is pushed into the locking portion 50 with a certain force or more, the locking portion 50 is elastically deformed, and the head 33 moves to the opposite side of the guide groove 30. After the movement, the locking portion 50 elastically returns, and the locking portion 50 functions to prevent the connection member 20 from coming off. Then, the sliding portion 32 can slide in the guide groove 30. Since a large groove or hole for allowing the head 33 to pass through is not formed, a decrease in mechanical strength around the guide groove 30 and the connecting member 20 can be prevented, and a limited space can be effectively used.
[0045]
The locking portion 50 is not particularly limited as long as it has a shape that allows the connecting member 20 to be attached to the guide groove 30 by being elastically deformed. For example, the locking portions 50 shown in FIG. 17 are provided on both sides of the guide groove 30 in the width direction. The locking portion 50 shown in FIG. 18 is provided on one end side of the guide groove 30 in the longitudinal direction. When attaching the connecting member 20 to the guide groove 30, the surface 50a of the locking portion 50 facing the head 33 may be inclined to reduce the cross-sectional area of the locking portion 50 toward the protruding end. . In this case, the locking portion 50 is easily elastically deformed in the direction in which the connecting member 20 is attached to the guide groove 30, while the locking portion 50 is hardly elastically deformed in the direction in which the connecting member 20 is removed from the guide groove 30. Become. When attaching the connecting member 20 to the guide groove 30, the surface 33c of the head 33 facing the locking portion 50 may be a curved surface. In this case, the head 33 becomes easy to slide on the surface of the locking portion 50, and the connecting member 20 is easily attached to the guide groove 30. It is preferable that the width of the notch 51 for forming the locking portion 50 is shorter than the length of the sliding portion 32 in the longitudinal direction of the guide groove 30. In this case, it is possible to prevent a situation in which the sliding portion 32 enters the cut 51 and hinders smooth sliding of the connecting member 20.
[0046]
In the seat slide mechanism shown in FIG. 19, the connecting member 20 has a sliding portion 32 having one end attached to the seat base member 18 or the seat main body 19 and slidable in the guide groove 30. And a head 33 which is provided at an end opposite to the above and cannot pass through the guide groove 30. The guide means 21 guides the guide groove 30 in which the sliding portion 32 slides, the mounting hole 52 through which the head 33 can pass, and the connecting member 20 located in the mounting hole 52 by being elastically deformed. A locking portion 50 that allows the groove 30 to move. Therefore, after the head 33 is passed through the mounting hole 52, the sliding portion 32 is pushed into the locking portion 50 with a certain force or more, whereby the locking portion 50 is elastically deformed, and the sliding portion 32 is deformed. Moves to the opposite side of the guide groove 30. After the movement, the locking portion 50 elastically returns, and the locking portion 50 functions to prevent the connection member 20 from coming off. Then, the sliding portion 32 can slide in the guide groove 30. Since the mounting hole 52 and the guide groove 30 are separated from each other, the mechanical strength around the guide groove 30 and the connecting member 20 is reduced as compared with a configuration in which the mounting hole 52 is directly connected to the guide groove 30 as it is. Can be prevented and the limited space can be effectively used.
[0047]
In the seat sliding mechanism shown in FIG. 20, the guide means 21 restricts the movement of the connecting member 20 by engaging with the connecting member 20 and allows the movement of the connecting member 20 by elastically deforming. It is composed. The guide means 21 includes, for example, a pair of beams 53 forming the guide groove 30 through which the connecting member 20 moves, a convex portion 54 provided on a surface of the beam 53 facing the connecting member 20, and an elastic deformation of the beam 53. And an escape hole 55 for allowing The guide means 21 has a function of guiding the connecting member 20 and also has a positioning function of stopping the seat at a specific position and applying a fixed force to move the seat from the specific position. I have.
[0048]
In the slide mechanism of the seat shown in FIG. 21, the guide means is the guide shaft 21 ', and the connecting member 20 has the slide hole 56 sliding on the guide shaft 21' and the guide shaft 21 ''Has a mounting portion 57 for leading to the sliding hole 56. The attachment portion is, for example, a notch 57 that connects the end of the connecting member 20 to the sliding hole 56. Therefore, when the connecting member 20 is pushed into the guide shaft 21 ′ with a certain force or more, the notch 57 expands, and the guide shaft 21 ′ moves to the slide hole 56. After the movement, the notch 57 elastically returns to the original state, thereby preventing the guide shaft 21 ′ from falling out of the sliding hole 56. Since a large groove or hole for passing the connecting member 20 is not formed, a decrease in mechanical strength around the guiding means and the connecting member 20 can be prevented, and a limited space can be effectively used.
[0049]
In the seat slide mechanism shown in FIGS. 22 and 23, the guide means is a guide groove 21 ″ on which the connecting member 20 slides, and the connecting member 20 has one end attached to the seat base member 18 or the seat body 19. A sliding portion 32 slidable in the guide groove 21 ", and a head 33 provided at the end opposite to the one end and passing through the guide groove 21" by being elastically deformed. The head portion 33 is formed, for example, by folding back from one end of the sliding portion 32 to form an inclined surface, and provided at the end of the inclined portion 58 and supported by the edge of the guide groove 21 ″. It has a supported portion 59 and an escape hole 60 for allowing the supported portion 59 to escape when the inclined portion 58 is elastically deformed. The inclined portion 58 forms an inclined surface that forms an acute angle toward the tip of the connecting member 20. The supported portion 59 has a shape which once extends from the end of the inclined portion 58 toward the sliding portion 32 and then bends at a right angle toward the base end side of the sliding portion 32. Therefore, when the connecting member 20 is pushed into the guide groove 21 ″ with a certain force or more, the inclined portion 58 is elastically deformed while the supported portion 59 is released into the escape hole 60, and the head 33 is moved to the guide groove 21 ″. Pass through. After the passage, the inclined portion 58 is elastically restored, and the supported portion 59 is supported by the edge of the guide groove 21 ″ and engages with the edge of the guide groove 21 ″, so that the head 33 is moved from the guide groove 30. Prevent from falling off. Since a large groove or hole for allowing the connecting member 20 to pass through is not formed, a decrease in mechanical strength around the guide groove 21 ″ and the connecting member 20 can be prevented, and a limited space can be effectively used.
[0050]
In the slide mechanism of the seat shown in FIGS. 24 and 25, the guide means is a pair of guide rails 61 provided on the seat base member 18 and facing each other in the opposite directions, and the connecting member is a seat body. The sliding portion 32 is provided on the guide 19 and is inserted into the pair of guide rails 61 and slides inside the guide rails 61. The sliding portion 32 is provided integrally with, for example, the seat inner shell 3 as one component of the seat body 19. The first engagement portion 24 is engaged with the surface 3b of the seat inner shell 3 facing the seat base member 18, and the first engagement portion 24 is engaged with the surface 18a of the seat base member 18 facing the seat inner shell 3. The second engaging portions 25 are provided respectively. The seat inner shell 3 is formed of a material having elasticity, is supported by the guide rail 61 via the sliding portion 32, and is provided with the first engagement portion 24 and the second engagement portion 25 when no occupant is present. The surface 3b of the seat inner shell 3 is set so as to float up from the seat base member 18 up to the position where does not engage. The first engagement portion is, for example, a projection 24, and the second engagement portion is, for example, a hole 25 into which the projection 24 fits. However, the form of the first engagement portion 24 and the second engagement portion 25 is not limited to this example, and may be, for example, irregularities, peaks, and valleys that mesh with each other. Therefore, the seat body 19 is slidable with respect to the seat base member 18 in a state where the seat inner member 3 is not seated, but when the seat is seated, the seat inner shell 3 sinks, and the first engagement portion 24 and the second engagement portion 25 And the seat body 19 cannot slide with respect to the seat base member 18. In this case, the slide mechanism of the seat provided with the seat positioning means can be simply configured.
[0051]
In the seat sliding mechanism shown in FIGS. 26 and 27, the seat inner shell 3 provided as a component of the seat body 19 or the seat body 19 and provided on the seat body 19 or the seat base member 18, and the seat base member The seat body 19 or the seat inner shell 3 is separated from the seat base member 18 by being urged so as to be in close contact with the seat body 19 and elastically deformed, and the seat body 19 is slid with respect to the seat base member 18. An enabling member 62 is provided. In the example shown in FIGS. 26 and 27, four urging members 62 are fixed to the seat base member 18, and the seat inner shell 3, which is a component of the seat body 19, is fixed by the urging members 62. It is urged in the direction of close contact. A first engaging portion 24 is provided on a surface of the seat inner shell 3 facing the seat base member 18, and a first engaging portion 24 is provided on a surface of the seat base member 18 facing the seat inner shell 3. Two engagement portions 25 are provided, respectively. The first engagement portion is, for example, a projection 24, and the second engagement portion is, for example, a hole 25 into which the projection 24 fits. However, the form of the first engagement portion 24 and the second engagement portion 25 is not limited to this example, and may be, for example, irregularities, peaks, and valleys that mesh with each other. Therefore, normally, the seat inner shell 3 and the seat base member 18 are in close contact with each other, and the first engagement portion 24 and the second engagement portion 25 are engaged with each other. And cannot slide. On the other hand, when the seat inner shell 3 is lifted against the urging force of the urging member 62 to disengage the first engagement portion 24 and the second engagement portion 25, the seat main body 19 becomes the seat base member 18 Can be slid. Also in this case, the slide mechanism of the seat including the positioning means of the seat can be easily configured.
[0052]
In the slide mechanism of the seat shown in FIGS. 28 and 29, the guide means is a guide groove 21 "in which the connecting member 20 slides, and the connecting member 20 is slidable in the guide groove 21". A head provided on one end side of the sliding portion 32 and having a first position, which can pass through the guide groove 21 "but can take a second position and cannot pass through the guide groove 21" 33 and a mounting portion 63 fixed to the seat base member 18 or the seat body 19 in the second posture. The connecting member 20 is formed in, for example, a substantially H shape in which two rectangular parallelepipeds are connected by a column having a diameter equal to the width of the rectangular parallelepiped. In this case, one of the two rectangular parallelepipeds is the head 33 and the other is the mounting portion 63. The cylinder connecting the two rectangular parallelepipeds is the sliding portion 32. The short side of the head 33 is set shorter than the width of the guide groove 21 ", and the long side of the head 33 is set longer than the width of the guide groove 21". In this case, a state in which the long side of the head 33 is oriented in the longitudinal direction of the guide groove 21 "is a first posture in which the head 33 can pass through the guide groove 21". A state rotated by 90 degrees around the axis of the sliding portion 32 from the first posture is, for example, a second posture. The member for fixing the connecting member 20 (for example, the seat base member 18) is formed with a mounting hole 64 through which the mounting portion 63 can pass when the connecting member 20 takes the first posture. On a back side of a member (for example, the seat base member 18) for fixing the connecting member 20, fixing means 65 into which the mounting portion 63 is fitted when the connecting member 20 takes the second posture is provided. This fixing means is, for example, four projections 65 for holding and fixing the mounting portion 63. However, the fixing means 65 is not limited to this example. For example, a hook-shaped claw forming a right angle is used as the fixing means 65, and the mounting portion 63 is rotated from the first posture state to the second posture state. By doing so, the mounting portion 63 may be fitted into the hook-shaped claw. Therefore, the connecting member 20 is set in the first position, passes through the mounting hole 64 and the guide groove 21 ″, and is then rotated 90 degrees around the axis of the sliding portion 32 to set the connecting member 20 in the second position. The mounting portion 63 is fitted into the space surrounded by the projection 65. Thereby, the connecting member 20 is fixed, and the seat base member 18 and the seat main body 19 are slidably connected. In addition, it is not necessary to form a large groove or hole, and it is sufficient to provide the guide groove 21 ″ in which the sliding portion 32 is slidable, so that the mechanical strength around the guide groove 21 ″ and the connection member 20 can be reduced. Can be prevented and the limited space can be effectively used.
[0053]
【The invention's effect】
As is apparent from the above description, according to the seat sliding mechanism of the first aspect, the guide has the guide groove in which the connecting member slides and the mounting groove for mounting the connecting member in the guide groove. The connecting member has a sliding portion having one end attached to the seat base member or the seat main body and slidable in the guide groove, and a connecting portion provided at an end opposite to the one end and having the guide groove and the mounting groove. A head that cannot pass through the groove, and an engagement piece that is provided at a position sandwiching the guide groove with respect to the head and that cannot pass the guide groove but allows the mounting groove to pass. Because there is no need to form large grooves or holes for passing the head, it can be used effectively without wasting limited space, and prevent the mechanical strength around guide grooves and connecting members from decreasing it can.
[0054]
Furthermore, according to the seat slide mechanism of the second aspect, since the surface of the head in contact with the seat base member or the seat body is a curved surface, the contact between the head and the member facing the head is point contact or line contact, By reducing the contact area, the frictional resistance of the connecting member during sliding can be reduced. In addition, it is possible to prevent the member facing the head from being scratched by the angular portion, and prevent the member facing the head from being damaged.
[0055]
Further, according to the slide mechanism of the seat according to the third aspect of the invention, since the sliding portion has a prismatic shape, rotation of the sliding portion in the guide groove is prohibited, and screwing or the like becomes easy.
[0056]
Furthermore, according to the seat slide mechanism of the fourth aspect, the connecting member is fixed to one of the seat base member and the seat body by the mounting screw, and the mounting screw is in the axial direction of the mounting screw. Since the length of the connecting member is at least one half or more, the mounting screw functions as a fixing means of the connecting member and also functions as a core material of the connecting member. Target strength is increased.
[0057]
Furthermore, according to the seat slide mechanism of the fifth aspect, since the inclination for guiding the connecting member to the mounting position is provided around the mounting position where the connecting member is mounted, the positioning of the connecting member to the mounting position is provided. Becomes easier.
[0058]
Furthermore, according to the seat slide mechanism of the sixth aspect, the length of the mounting groove in the longitudinal direction of the guide groove is set shorter than the length of the sliding portion in the longitudinal direction. This prevents a situation in which the part enters the mounting groove and prevents smooth sliding of the connecting member.
[Brief description of the drawings]
FIG. 1 is a schematic exploded perspective view showing an embodiment of a seat slide mechanism according to the present invention.
FIG. 2 is a schematic side view showing an example of a connecting member of the slide mechanism of the seat.
FIG. 3 is a schematic front view showing an example of the connection member.
FIG. 4 is a schematic side view showing another example of the connection member.
FIG. 5 is a schematic front view showing another example of the connection member.
FIG. 6 is a schematic side view showing how the connection member is positioned.
FIG. 7 is a schematic plan view showing an example of a seat base member.
FIG. 8 is a schematic plan view showing an example of a seat inner shell which is a component of the seat body.
FIG. 9 is a schematic bottom view showing an example of a seat body.
FIG. 10 is a cross-sectional view and a partially enlarged view taken along line XX of FIG. 9;
FIG. 11 is a cross-sectional view of the seat inner shell and an enlarged view of the operation lever portion, showing a state in which the operation lever of the seat body moves vertically.
FIG. 12 is an enlarged perspective view of a main part showing a sewing operation of sewing a tape material and a tightening string through an upper covering material and cutting off a peripheral edge of the upper covering material.
FIG. 13 is a partial perspective view showing an example of a method of sewing a tape material on an upholstery material.
FIG. 14 is a partial perspective view showing another example of a method of sewing a tape material to an upper-layered ground.
FIG. 15 is a partial perspective view showing a state in which the upper lining is turned up after sewing by the sewing method shown in FIG. 14;
FIG. 16 is a partially enlarged view showing a state where a tightening string is tied so that a knot of the string is hidden behind a drop-off preventing claw.
FIG. 17 is a schematic perspective view showing another embodiment of the seat slide mechanism of the present invention.
FIG. 18 is a schematic perspective view showing still another embodiment of the seat slide mechanism of the present invention.
FIG. 19 is a schematic perspective view showing still another embodiment of the seat slide mechanism of the present invention.
FIG. 20 is a schematic perspective view showing still another embodiment of the seat slide mechanism of the present invention.
FIG. 21 is a schematic perspective view showing still another embodiment of the seat slide mechanism of the present invention.
FIG. 22 is a schematic perspective view showing still another embodiment of the seat slide mechanism of the present invention.
FIG. 23 is a schematic side view showing an example of a connecting member of the slide mechanism of the seat.
FIG. 24 is a schematic perspective view showing still another embodiment of the seat slide mechanism of the present invention.
FIG. 25 is a schematic perspective view showing a state in which the seat body is removed from the seat base member in the slide mechanism of the seat.
FIG. 26 is a schematic perspective view showing still another embodiment of the seat slide mechanism of the present invention.
FIG. 27 is a schematic perspective view showing a state in which a seat body is attached to a seat base member in the seat slide mechanism.
FIG. 28 is a schematic perspective view showing still another embodiment of the seat slide mechanism of the present invention.
FIG. 29 is a schematic perspective view showing a back surface of a seat base member of the slide mechanism of the seat.
FIG. 30 is a plan view showing a conventional seat slide mechanism.
FIG. 31 is a side view showing a conventional seat slide mechanism.
[Explanation of symbols]
18 Seat outer shell (seat base member)
19 seat body
20 Connecting members
21 Guidance means
30 Guide groove
31 Mounting groove
32 sliding part
33 head
34 Engagement piece

Claims (6)

A seat base member supported by a leg, a seat body forming a seating surface, and provided on one of the seat base member or the seat body and integrated with one of the seat base member or the other of the seat body. A connection member that relatively moves with respect to the seat member, and a guide mechanism provided on the other side for guiding the connection member, wherein the seat body is slidable with respect to the seat base member. The guide means has a guide groove in which the connection member slides, and a mounting groove for mounting the connection member in the guide groove, and the connection member has one end on the seat base member or the seat body. A sliding portion that is attached and slidable in the guide groove, a head that is provided at an end opposite to the one end and that cannot pass through the guide groove and the mounting groove; The above plan for the department Seat sliding mechanisms Although the guide grooves with is provided at a position sandwiching the groove is not pass through, characterized in that it comprises a engaging piece the mounting groove is passable. 2. The seat slide mechanism according to claim 1, wherein a surface of the head that is in contact with the seat base member or the seat body is a curved surface. The seat sliding mechanism according to claim 1, wherein the sliding portion has a prism shape. The connecting member is fixed to one of the seat base member or the seat main body by a mounting screw, and the mounting screw is at least a half of the length of the connecting member in the axial direction of the mounting screw. The seat slide mechanism according to any one of claims 1 to 3, wherein the slide mechanism has at least one length. The sliding mechanism for a seat according to any one of claims 1 to 4, wherein an inclination for guiding the connecting member to the mounting position is provided around a mounting position where the connecting member is mounted. The seat slide mechanism according to any one of claims 1 to 5, wherein a length of the mounting groove in the longitudinal direction of the guide groove is shorter than a length of the sliding portion in the longitudinal direction.

Images