JP2012035642A - Installation structure of seating sensor for vehicle seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an installation structure of a seating sensor for a vehicle seat for preventing the disconnection of the seating sensor by an easily installable, simple and inexpensive structure.SOLUTION: This installation structure includes: a film-like body 21 having flexibility; a push-in part 31 for pressing and movably inserting a surface of a bending part 21d of the film-like body 21 in the input direction of a seating load into a recessed groove 14; both side edges 32 and 32 interposed between the push-in part 31 and an opposed groove inside surface 14a connected to the push-in part 31 in a state of having a clearance for passing through an electrically continuing part 21c of the film-like body 21 between both edges of the push-in part 31 and itself and slidingly contacting with a reverse surface of the electrically continuing part 21c of the passing film-like body 21; a holding member 30 having a fixing part 35 for fixing the push-in part 31 and both side edges 32 and 32 in the recessed groove 14; and a void 38 formed under the push-in part 31 and capable of moving the bending part 21d in the input direction of the seating load when inputting the seating load.

Description

  The present invention relates to a mounting structure for a seat sensor for a vehicle seat that is installed on a vehicle seat and detects a seating state of an occupant.

  2. Description of the Related Art Conventionally, in order to improve the performance of various safety devices such as seat belts and airbags installed in automobiles, there is a technique for detecting a state in which an occupant is seated on a vehicle seat and controlling these safety devices. As a seat sensor for a vehicle seat suitable for detecting the seating state of such an occupant, there is a film-like membrane switch that is thin and flexible.

  The seat portion and the backrest portion of the vehicle seat are configured by covering a pad member generally made of urethane or the like with a skin member such as cloth, vinyl leather, or leather. Specifically, the skin member is pulled into the groove provided on the surface of the pad member, and the pulled skin member is fixed to a mooring member (wire) disposed in the vicinity of the groove inside the pad member (fixing ring). The skin member is configured to follow the shape of the surface of the pad member. In the vehicle seat configured as described above, since the concave groove is often located in the seating portion of the pad member of the seat portion of the vehicle seat, it is provided between the detection portions of the seat sensor (membrane switch) for the vehicle seat. The conduction part that transmits the signal of the detection part is in a state of crossing the groove. If the conductive portion is fixed and attached to the vehicle seat in a state of crossing the concave groove, when the load is applied to the vehicle seat, the conductive portion may be deformed and disconnected due to the deformation of the concave groove. Therefore, in order to prevent disconnection, the conducting portion is provided in the concave groove portion with a space, and the slack is inserted into the concave groove. However, when the conduction portion of the seating sensor is attached to the groove portion of the vehicle seat, the seat sensor may be bent at a steep angle at the position of the groove entrance. If used in such a state for a long time, the conduction part of the seating sensor may be disconnected.

  According to the seating sensor mounting structure disclosed in, for example, Patent Document 1, which is considered to prevent such disconnection, a gently inclined portion is provided across the bottom of the groove and the pad portion surface across which the wiring as the conducting portion crosses. The wiring is arranged on the inclined part. Thereby, it is possible to avoid an attachment state in which the pad portion is bent at a steep angle from the surface of the pad portion toward the inclined portion.

Japanese Patent No. 3781957

  However, since this type of seating sensor is in the form of a flexible film and it is difficult to maintain a certain shape, it is difficult to insert the sensor into a soft part such as a cushion, and the mounting position varies. As a result, there are problems that the number of man-hours for the mounting work increases and that stable work cannot be performed.

  Moreover, even if it can be attached, in the prior art shown in Patent Document 1, when a load is input to the pad member and deformation such as sinking occurs in the pad member, the pad member is fixed on the surface of the pad member and disposed in the concave groove. Thus, a reaction force is applied from the bottom to the folded portion of the conducting portion that contacts the bottom of the concave groove. And there exists a possibility that a conduction | electrical_connection part may bend and deform locally by reaction force, and a stress may be generated in a deformation | transformation part and it may be disconnected.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a seating sensor mounting structure for a vehicle seat that is easy to assemble and prevents disconnection of the seating sensor with a simple and low-cost structure. .

  In order to solve the above problems, the vehicle seat seat sensor mounting structure according to a first aspect of the present invention is characterized in that the seat side of the vehicle seat pad member in which the recessed grooves having the inner surfaces of the grooves facing each other are recessed. Between the front surface and the skin member attached to the pad member so as to cover the seating side surface, the back surface is in contact with the seating side surface and is laid so as to cross the concave groove, and the seating on the pad member A plurality of detection units for detecting a load, an external output unit for outputting a load signal detected by the detection unit, and a conduction unit for conducting between the plurality of detection units and between the detection unit and the external output unit A flexible film-like main body, and a bent portion formed by bending a part of the conducting portion of the film-like main body by pressing the surface of the bent portion into the groove. Push for insertion to move in the input direction Is interposed between the groove inner surface facing the pressing portion and the pressing portion, and is connected to the pressing portion with a gap for allowing the conducting portion to pass between both end edges of the pressing portion, A holding member provided with a fixing portion that fixes both sides of the back surface of the conducting portion that passes through, and both sides of the pushing portion and both sides of the edge in the state of being inserted into the groove. And a gap that is formed below the pushing portion and allows the bent portion to move in the input direction of the seating load when the seating load is input.

  In order to solve the above-described problem, the invention is characterized in that the seat seat sensor mounting structure according to claim 2 is characterized in that, in claim 1, the holding member is connected between both side edges of the opposite side edges. A pair of connecting side walls, and the pushing portion is detachably connected to at least one of the two connecting side walls.

  In order to solve the above-described problem, the invention is characterized in that the seating sensor mounting structure for a vehicle seat according to claim 3 is characterized in that, in claim 2, the holding member is a bottom connecting the lower ends of the opposing side edges. The fixing portion having a clip-shaped cross section having a wall, the gap portion between the surface of the bottom wall and the pushing portion, and a fitting groove on the back surface of the bottom wall, Is engaged with the exposed portion of the anchoring member that is embedded in the pad member and exposed under the gap to lock the skin member.

  In order to solve the above-described problem, a vehicle seat seat sensor mounting structure according to a fourth aspect of the present invention is characterized in that, in the first aspect, the holding member is fixed to both side ends of the push-in portion, and the both side edges. An extended side wall extending toward the portion, and the side edge portions are detachably connected to the extended side wall at at least one of both side edges of each side edge portion.

  In order to solve the above-described problem, the invention is characterized in that the seating sensor mounting structure for a vehicle seat according to claim 5 is characterized in that, in claim 4, the extending side wall has a lower portion extending in the input direction of the seating load. An extension is provided, and a notch is formed at the lower end of the downward extension, and the notch is embedded in the pad member to lock the skin member and below the gap. Engaging the exposed portion of the anchoring member exposed at.

  In order to solve the above-mentioned problem, the invention is characterized in that the seating sensor mounting structure for a vehicle seat according to claim 6 is characterized in that, in claim 1, the fixing portion extends in a direction perpendicular to the concave groove from the side edge portions. A horizontal extension extending horizontally, or a horizontal extension extending horizontally in the groove direction from a connecting portion connecting the pushing portion and both side edges, and the extension The holding member is positioned in the depth direction in the concave groove by abutting with a seat portion formed in the concave groove.

  According to the first aspect of the present invention configured as described above, the bent portion of the holding member can smoothly insert the bent portion into the concave groove by pressing the bent portion of the film-like main body into the concave groove. In this way, the bent part of the film-like main body that is flexible and difficult to insert into the concave groove by itself is easily and quickly assembled at the desired position of the pad member by using the holding member. it can.

  In addition, the bent portion of the film-like main body inserted into the concave groove together with the holding member fixed in the concave groove by the fixing portion, the occupant sits on the seating side surface of the pad member, and the pad member enters the seating load input direction. When compressed, the film-like main body laid on the seating side surface sinks together with the seating side surface and moves in the seating load input direction. At the same time, a part of the back surface of the conducting portion that forms the bent portion moves between the pushing portion of the holding member and the side edge portion having the sliding contact portion while being in sliding contact with the sliding contact portion. As a result, no large resistance is generated in the conducting portion due to the movement. Therefore, there is no possibility of deformation of the conducting portion due to the resistance, and the conducting portion can smoothly move between the side edge portion and the pushing portion.

  In addition, since a gap is provided in the seating load input direction of the bent portion, even if the bent portion moves in the seating load input direction, the tip of the bent portion abuts on any part and contacts There will be no reaction force. Thereby, there is a low possibility that local bending deformation will occur in the conductive portion, and disconnection and breakage due to this can be suppressed.

  Furthermore, the holding member can be fixed at an arbitrary position in the seating load input direction in the concave groove by the fixing portion. Accordingly, the fixing depth of the holding member can be freely set to a depth at which the seated person does not feel uncomfortable.

  According to the invention according to claim 2 configured as described above, the push-in portion is detachably connected to at least one of both the connecting side walls formed by connecting the both side ends of the both side edge portions. Accordingly, when the conductive portion of the film-like main body is attached to the holding member, at least one of the pushing portions is detached from the connecting side wall and opened, and the conducting portion is inserted into the gap portion of the holding member, and then the pushing portion is connected to the connecting side wall. By being engaged with and closed, it can be easily mounted, and the assembly man-hour can be reduced.

  According to the invention according to claim 3 configured as described above, the bottom wall is formed by connecting the lower ends of both side edge portions, and a clip-shaped cross-section fixing portion having a fitting groove is formed on the back surface of the bottom wall. It is provided, and the fixing portion is fitted with a mooring member exposed below the gap portion. As a result, the holding member is fixed in the concave groove via the fixing portion and is positioned in the input direction of the seating load. Thus, the holding member can be fixed and positioned by a very simple and low-cost structure and method.

  According to the invention according to claim 4 configured as described above, the extending side walls extending from the pushing portion toward both side edge portions are respectively fixed to both side ends of the pushing portion, and the both side edge portions are each side edge portion. At least one of the both side ends of the extended side wall is detachably connected to the extended side wall. Thus, when the conductive portion of the film-like main body is attached to the holding member, at least one of both side edges of each side edge portion is detached from the extended side wall and opened, and the conductive portion is inserted into the holding member, and then each side By engaging the edge with the extending side wall and closing it, it can be easily mounted, and the assembly man-hour can be reduced.

  According to the invention according to claim 5 configured as described above, the lower end portion of the downward extension portion extending in the seating load input direction is provided with a notch portion, and each notch portion is below the gap portion. The holding member is positioned in the input direction of the seating load by engaging with the exposed anchoring member. Thus, the holding member can be positioned by a very simple and low-cost structure and method.

  According to the invention according to claim 6 configured as described above, the connecting portion extends horizontally from both side edge portions of the holding member in a direction perpendicular to the groove, or connects the pushing portion and both side edge portions. A horizontal extension portion extending horizontally in the groove direction is provided as a fixed portion, and the horizontal extension portion abuts against a seat portion formed in the groove to hold the holding member in the depth direction in the groove. Position to. Thus, the positioning of the holding member in the input direction of the holding member that does not give a sense of incongruity at the time of sitting to the seated person can be performed by the very simple and low-cost structure and method of providing the horizontal extending portion.

1 is a perspective view showing an overall configuration of a vehicle seat to which a seating sensor mounting structure according to the present invention is applied. It is a top view which shows the cushion part of a vehicle seat. FIG. 3 is a partially broken enlarged view of FIG. 2. It is the top view (a) and bottom view (b) of a seating sensor. FIG. 5 is a 5-5 cross-sectional view of the cushion portion of the vehicle seat shown in FIG. 2. It is a perspective view of the holding member concerning a 1st embodiment. It is a perspective view of the holding member holding the seating sensor concerning a 1st embodiment. FIG. 6 is a cross-sectional view (schematic diagram) of FIG. 3 according to the first embodiment. FIG. 9A is a diagram when a seating load is not input in the section 6-6 in FIG. 8 and FIG. 9B is a diagram when the seating load is input and the pad member is depressed. It is sectional drawing (a) of the prior art attachment structure corresponding to Drawing 9 (a) and (b), and (b). It is a perspective view of the holding member concerning a 2nd embodiment. It is a perspective view of the holding member holding the seating sensor concerning a 2nd embodiment. FIG. 6 is a cross-sectional view (schematic diagram) of FIG. 3 according to the second embodiment. FIG. 6A is a diagram when a seating load is not input in the 6-6 cross section of FIG. 3 according to the second embodiment, and FIG. 6B is a diagram when the pad member is input and the pad member is sunk. It is a perspective view of the holding member concerning a 3rd embodiment. It is a perspective view of the holding member holding the seating sensor concerning a 3rd embodiment. FIG. 6 is a cross-sectional view (schematic diagram) of FIG. 3 according to a third embodiment. FIG. 6A is a diagram when a seating load is not input in the 6-6 cross section of FIG. 3 according to the third embodiment, and FIG. 6B is a diagram when the pad member is input and sinks.

  Hereinafter, a first embodiment in which a seating sensor mounting structure for a vehicle seat according to the present invention is applied to a vehicle seat will be described with reference to the drawings. In addition, the directions of “front and rear, left and right, up and down” used in this specification are described with reference to the vehicle.

  As shown in FIG. 1, the vehicle seat 2 includes a cushion portion 4, a vehicle seat seating sensor 8, and a seat back portion 6. As shown in FIGS. 2 and 3, the cushion portion 4 is made of cloth (or vinyl leather or leather) that is mounted so as to cover a pad member 10 made of urethane or the like and an upper surface that is a seating side surface of the pad member 10. And the like). As shown in FIG. 3, a concave groove 14 extending in the left-right direction (vertical direction in FIG. 3) is formed in a part of the upper surface of the pad member 10 of the cushion portion 4. As shown in the cross-sectional view of FIG. 5, the concave groove 14 is formed by connecting each groove inner side surface 14a, 14a parallel to each other and extending substantially vertically, and each groove inner side surface 14a, 14a at the lower end of each groove inner side surface 14a, 14a. And a bottom portion 14b to be connected.

  As shown in FIGS. 1 to 3, below the bottom portion 14 b of the groove 14, an anchoring member 16 made of a metal wire extending over substantially the entire width of the groove 14 is padded in parallel with the groove 14. It is embedded in the member 10. The mooring member 16 engages with each locking member 20 of the skin member 12 via the fixed ring 17 in the left and right exposed portions 52 spaced from the center of the cushion portion 4 shown in FIG. Is fixed along the surface shape of the pad member 10 (see FIG. 5). The concave groove 14 may be provided not only in the left-right direction of the pad member 10 but also in the front-rear direction, or may be arranged in any manner.

  The seating sensor 8 shown in FIG. 4 has a film-like (sheet-like) main body 21 (FIG. 4A is the front surface and FIG. 4B is the back surface) constituted by a membrane switch, and FIG. Holding member 30. The seating sensor 8 is disposed between the seating-side surface of the vehicle seat pad member 10 and the skin member 12, and is laid across the concave groove 14 as shown in FIGS.

  The film-like main body 21 shown in FIG. 4 includes a plurality of four detection units 21a arranged on one end side in the longitudinal direction, an output unit 21b arranged on the other end side in the longitudinal direction, Each conducting portion 21e that electrically connects the detecting portions 21a and a conducting portion 21c that electrically connects the detecting portion 21a and the output portion 21b are provided.

  The film-like main body 21 has an elongated strip shape, and the four detection portions 21 a are arranged at equal intervals in the longitudinal direction of the film-like main body 21. The film-like main body 21 is laid so as to cross the groove 14 at a substantially central portion of the conducting portion 21c that conducts the detecting portion 21a and the output portion 21b. At this time, the part of the conducting part 21 that crosses the concave groove 14 is not limited to the conducting part 21c, but may be any one conducting part 21e that conducts the detecting parts 21a.

  The detection unit 21a includes an upper film whose upper surface is in contact with the lower surface of the skin member 12 and has a contact at the center of the lower surface, and a lower film whose lower surface is in contact with the upper surface of the pad member 10 and has a contact at the center of the upper surface. Is polymerized through an insulating spacer to form a film. The upper film and the lower film are thin-walled films made of a resin material such as polyethylene naphthalate (PEN), and the insulating spacer is made of a resin such as polyethylene terephthalate (PET). A circular opening is provided. Then, when an occupant sits on the seating side surface of the pad member 10, a seating load is input to the contact portion, and the contacts in the off state that are separated from each other come into contact and turn on. Further, when the occupant leaves the pad member 10, the seating load is removed, and the contacts are separated again to be in the off state.

  The output unit 21b outputs a signal detected by the detection unit 21a, and a connector 22 is connected to the output unit 21b. The connector 22 is connected to an unillustrated ECU that determines the seating state of the occupant. For example, when an occupant sits on the seat cushion part 4 (pad member 10) of the vehicle seat 2 and any one or more of the detection parts 21a are turned on, an electric current flows through a circuit that the seating sensor 8 configures. It is determined that a person is seated on the seat cushion portion 4 (there is a load load exceeding a specified level) based on the seating detection signal based on the current. Thereby, for example, the operation of the airbag apparatus is made possible, or a warning that the seat belt is not worn is issued.

  4B, a double-sided tape is affixed to the back surface of one end side in the longitudinal direction of the film-like main body 21, and the one end side (the detection unit 21a side) is a pad member by this double-sided tape. 10 is fixed on the surface of the seating side, prevents the positional deviation between the film-like main body 21 and the pad member 10, and suppresses the occurrence of uncomfortable feeling at the time of sitting. In addition, a double-sided tape is affixed to an arbitrary part on the back surface on the other end side of the film-like main body 21, and the other end side is fixed on the seating-side surface of the pad member 10 by this double-sided tape. Occurrence of misalignment on the pad member 10 is suppressed.

  And the double-sided tape is not provided in the back surface of the part hold | maintained in the holding member 30 among the range of the conduction | electrical_connection part 21c which conducts the detection part 21a and the output part 21b. As a result, the conduction portion 21 c can move in the vertical direction within the holding member 30.

  In this embodiment, the double-sided tape is provided on the back surface of the film-like main body 21 so as to avoid the detection unit 21a. However, the present invention is not limited to this, and the double-sided tape may be provided on the back surface position of the detection unit 21a. This also ensures sufficient detection sensitivity of the input load. Further, for example, an adhesive other than the double-sided tape may be applied to the back surface of the film-shaped main body 21 and fixed on the pad member 10.

  Next, the holding member 30 will be described. The holding member 30 is made of resin or rubber material. As shown in FIG. 6, the holding member 30 includes a push-in portion 31 and a pair of side edge portions 32 that face the groove inner side surfaces 14 a and 14 a of the groove 14 when disposed in the groove 14. 32, a pair of connecting side walls 33, 33, a bottom wall 34, a pressing portion 31 formed on the back surface (lower surface) of the bottom wall 34, and both side edge portions 32, 32 are fixed in the groove 14. And have.

  The pushing portion 31 has the opened state shown in FIG. 6 with respect to the holding member 30 and the closed state shown in FIG. 7, and is orthogonal to the concave groove 14 in the closed state shown in FIG. 7. The cross-sectional shape is substantially U-shaped with an upward opening, and extends in parallel with the concave groove 14. Moreover, the pushing part 31 presses and pushes the surface of the conduction | electrical_connection part 21c of the film-like main body 21, and the lower surface 31a for inserting the conduction | electrical_connection part 21c in the concave groove 14 and U shape in the closed state of FIG. And both side edge ends 31b, 31b extending in parallel with the concave groove 14 at the upper end of the upper edge (see FIG. 8).

  The pair of side edge portions 32 and 32 each have a horizontally long rectangular plate shape. As shown in FIG. 8, both side edge portions 32, 32 are provided between both groove inner side surfaces 14a between both groove inner side surfaces 14a, 14a of the recessed groove 14 and both side edge ends 31b, 31b of the pushed-in portion 31 in the closed state. , 14a and both side edges 32, 32 are interposed so as to be parallel to each other. At this time, between the side edges 32 and 32 and the side edges 31b and 31b of the closed push-in part 31, the conductive part 21c of the film-like main body 21 passes so that it can be moved in the vertical direction. Both passages 37, 37 having gaps slightly exceeding the thickness of the conductive portion 21c are formed. Further, when the conducting portion 21c moves through both the passages 37, 37, both side edges 32, 32 facing the back surface of the conducting portion 21c so that the conducting portion 21c does not slide and contact the side edges 32, 32 to receive a large resistance. Each surface is provided with a pair of sliding contact portions 32a, 32a. The sliding contact portions 32a and 32a may be formed by applying, for example, a fluorine-based resin material so that the sliding resistance with the back surface of the conducting portion 21c is reduced, or formed by improving the surface roughness by processing. May be. At this time, there may or may not be a gap between the side edges 32 and 32 and the inner surfaces 14a and 14a of both grooves, but in this embodiment, the holding member 30 can be easily inserted into the concave groove 14. A slight gap is provided.

  The pair of connecting side walls 33, 33 are formed by connecting the lower sides between the opposite side edges 32, 32 extending in the vertical direction on the left and right sides. A pair of upper end edges 33a, 33a of both the connecting side walls 33, 33 are formed in a substantially U shape following the shape of the lower surface 31a of the pushing portion 31, and the lower surface 31a of the pushing portion 31 and the upper end edges 33a, 33a are shown in FIG. In the closed state. The upper end edge 33a of one of the connecting side walls 33 is integrally connected to one end of the pushing portion 31 and a connecting portion 33b made of resin so as to be bent so as to be a fulcrum of the pushing portion 31 when the pushing portion 31 is opened and closed. Further, the upper end edge 33a of the other connecting side wall 33 is provided with a protrusion or a female hole to be connected to the other end of the pushing portion 31 by a snap fit. In other words, the other end of the push-in portion 31 is provided with a female hole or projection for engaging with the upper end edge 33a of the other connecting side wall 33 by snap fit. At this time, any snap-fit structure may be used.

  The bottom wall 34 is formed in an R shape with an arbitrary curvature between the lower ends of the side edges 32 and 32 and connected. As a result, when the holding member 30 is inserted into the concave groove 14, it can be inserted from the R-shaped tip and can be smoothly inserted. Further, the bottom wall 34 is provided with a surface 34a which is an upper surface, and is a space which allows movement of the conducting portion 21c (curved portion 21d) of the film-like main body 21 between the surface 34a and the lower surface 31a of the pushing portion 31. A gap 38 is formed. The size (length) in the vertical direction, which is the input direction of the seating load of the gap portion 38, is larger than the maximum sinking amount of the pad member 10 assumed when the occupant is seated on the seating surface of the pad member 10. It is formed in this.

  In the above description, the bottom wall 34 and the connecting side walls 33, 33 may be connected to each other and formed continuously, or separated from each other, and between the bottom wall 34 and the connecting side walls 33, 33. May have a spacing portion. However, in this embodiment, the bottom wall 34 and the connecting side walls 33 and 33 are connected and formed continuously without having a separation portion.

  Next, as shown in FIGS. 6 and 8, the fixing portion 35 is provided integrally with the bottom wall 34 on the back surface 34 b of the bottom wall 34. The fixing portion 35 extends in parallel with the concave groove 14 and is arranged at the approximate center of the width of the bottom wall 34, which is a direction orthogonal to the concave groove 14. The fixing portion 35 has a fitting groove 36 having a clip-like cross section opened downward in a state where the fixing portion 35 is inserted into the concave groove 14. The fitting groove 36 includes a holding portion 36a that holds the wire that is the anchoring member 16, and an inlet portion 36b that is formed with an opening width slightly smaller than the diameter of the anchoring member 16 that serves as an inlet to the holding portion 36a.

  In the present embodiment, the fixing portion 35 is formed to extend in parallel with the concave groove 14. However, the present invention is not limited to this. The extending direction of the anchoring member fitted to the fixing portion is changed, or a plurality of short fixing portions are provided in parallel and in series with the anchoring member. An embodiment in which only one part is provided may be used. This also provides a reasonable effect.

  Moreover, although FIG. 8 is drawn so that there is a gap between the upper surface of the pad member 10 and the film-like main body 21, it is actually in contact with and fixed. The same applies to FIG. 9, FIG. 13, FIG. 14, FIG. 17, and FIG. 18 other than FIG.

  Next, the through hole 10a of the concave groove 14 into which the holding member 30 is inserted will be described. The through-hole 10a is provided in the bottom part 14b of the concave groove 14 into which the holding member 30 is inserted, and is penetrated from the bottom part 14b to the back surface of the pad member 10 in the downward direction that is the input direction of the occupant's seating load. The top view shape of the through hole 10a is formed according to the outer shape of the holding member 30 inserted into the through hole 10a. The outer shape of the holding member 30 in the portion inserted into the through-hole 10a includes both side edges 32, 32 and a pair of connecting side walls 33, 33 formed by connecting the side edges of both side edges 32, 32. The substantially rectangular shape formed by these is exhibited. Thus, the top view shape of the through hole 10 a is a substantially rectangular shape, and is formed with a slight gap between it and the outer shape of the holding member 30.

  As shown in FIGS. 8 and 9, the wire which is the anchoring member 16 fitted to the fixing portion 35 is exposed at a predetermined position below the through hole 10 a and is arranged in parallel with the concave groove 14. The mooring member 16 is buried directly under the bottom 14b of the concave groove 14 in other parts than the through hole 10a, but bends at a right angle in the vicinity of the through hole 10a, and has a predetermined area below the through hole 10a. At the position, it is bent at a right angle toward the through hole 10a again and exposed in the through hole 10a. Then, after extending straight through the through-hole 10a, it enters the pad member 10 again, and is bent upward at a right angle in the vicinity of the through-hole 10a. Thereafter, the groove is bent at a right angle in the direction away from the through hole 10a in the vicinity of the bottom 14b of the groove 14 and extends parallel to the groove 14 (not shown).

  Next, attachment of the film-like main body 21 to the holding member 30 will be described. The film-like main body 21 may be held by the holding member 30 when attached to the cushion portion 4. However, normally, the one in which the conducting portion 21c of the film-like main body 21 of the holding member 30 is bent and inserted is prepared in advance. Therefore, in order to insert the film-like main body 21 into the holding member 30 in advance, first, the snap fit engagement of the other end of the pushing portion 31 that closes the upper surface of the holding member 30 is released, and the pushing portion 31 is moved to one end of the pushing portion 31. The door is opened with the connecting portion 33b as a fulcrum. As a result, the upper portion of the gap 38 of the holding member 30 is opened.

  Next, the conductive portion 21c is placed on both side edges 32 so that the surface of the conductive portion 21c of the film-like main body 21 faces upward above the gap portion 38, and the longitudinal direction of each side of the side edges 32, 32 is orthogonal to each other. The push-in part 31 is closed in a state of being placed on the surface 32 or slightly floating. As a result, the surface of the conducting portion 21c is pressed by the lower surface 31a of the pushing portion 31 and pushed into the gap portion 38, and a portion of the conducting portion 21c is bent to form a bent portion 21d in the gap portion 38 portion. Yes. A portion of the conducting portion 21c other than the inside of the gap portion 38 includes a pair of both passages formed between the side edges 32, 32, the side edges 31b, 31b of the push-in portion 31, and the connecting side walls 33, 33. 37, 37, and protrudes upward with an appropriate gap between the conductive portion 21c and both side edges 31b, 31b. At this time, the film-like main body 21 protruding upward is raised upward by hand so that the surface of the conducting portion 21c (curved portion 21d) is in contact with or close to the lower surface 31a of the pushing portion 31. The attachment to the holding member 30 is completed. Thus, since the other end of the pushing portion 31 of the holding member 30 can be engaged and disengaged, the film body 21 can be easily attached to the holding member 30 in a short time.

  Next, the attachment to the cushion part 4 (concave groove 14) of the holding member 30 which hold | maintained the film-like main body 21 which is the state shown in FIG. 7 is demonstrated. First, the holding member 30 that holds the film-like main body 21 in the concave groove 14 of the pad member 10 and the through-hole 10a in the state where the cushion member 4 is not covered with the skin member 12 is arranged in the longitudinal direction of the film-like main body 21. Is inserted into the recessed groove 14 from the fixing portion 35 side so as to cross the recessed groove 14. At this time, the film-like main body 21 bent and held in the holding member 30 tries to return to a straight line by its own return force. Thereby, the back surface of the film-like main body 21 is stationary by pressing the inner surfaces of the side edge portions 32 and 32 while contacting or approaching the lower surface 31a of the pushing portion 31.

  When the holding member 30 is inserted into the concave groove 14, the film-like main body 21 is inserted together with the holding member 30 without moving relative to the holding member 30, or, for example, a portion protruding above the film-like main body 21 Is inserted into the holding member 30 and the film-like main body 21 while causing a relative movement due to contact with the pad member 10 and resistance. However, even when relative movement occurs, the film-like main body 21 is pressed and held by the push-in portion 31 from the time when the lower surface 31a of the push-in portion 31 comes into contact with the surface of the conducting portion 21c (curved portion 21d) of the film-like main body 21. Simultaneously with the member 30, it is inserted into the concave groove 14 and the through hole 10a. As a result, the film-like main body 21 that is soft and difficult to insert by itself can be inserted smoothly and in a short time without damaging the groove 14. In the present embodiment, there is a slight gap between the holding member 30 and the groove inner side surfaces 14a, 14a of the groove 14. Accordingly, the holding member 30 can be smoothly inserted until the fixing portion 35 provided below the holding member 30 and the anchoring member 16 exposed in the through hole 10a are engaged.

  When the fixing portion 35 and the anchoring member 16 are engaged with each other, the anchoring member 16 slightly expands the inlet portion 36b of the fitting groove 36 of the fixing portion 35 formed with a width slightly narrower than the wire diameter of the anchoring member 16. It passes through and is fitted into a holding portion 36a formed above the inlet portion 36b. As a result, the holding member 30 is fixed in the concave groove 14 via the anchoring member 16 embedded and held in the pad member 10.

  Next, in the state where the surface of the conducting portion 21c of the film-like main body 21 is in contact with or close to the lower surface 31a of the pressing portion 31 of the holding member 30, one end side in the longitudinal direction of the film-like main body 21 is The four detection portions 21 a are bent and arranged on the upper surface of the pad member 10 in front of the concave groove 14 so as to be along the upper surface of the pad member 10 in front of the groove 15. Further, the other end side in the longitudinal direction of the film-like main body 21 protruding upward from the gap between the side edge portions 32 and 32 and the pushing portion 31 is also on the pad member 10 on the rear side of the recessed groove 14 in the same manner as the one end side. It is bent along the upper surface of. In this state, the one end side and the other end side in the longitudinal direction of the film-like main body 21 are attached to the surface of the pad member 10 with a double-sided tape, so that the four detection portions 21a are fixed at predetermined positions ( (See FIG. 1). Thus, in a state where no seating load is input, the conducting portion 21c (curved portion 21d) of the film-like main body 21 is disposed in contact with or close to the lower surface 31a of the pushing portion 31 above the gap portion 38. Therefore, when the seating load is input, the downward movement of the conductive portion 21c (the bent portion 21d) in the gap portion 38 is allowed to the maximum.

  By holding the film-like main body 21 by the holding member 30 in this way, the soft film-like main body 21 can be easily assembled into the concave groove 14 which may be damaged or broken depending on how it is bent. Moreover, it can be carried out in a short time without damaging it and is very effective.

  The four detection parts 21a of the rear seating sensor 8 are disposed between the pad member 10 and the skin member 12 of the cushion part 4, and when the occupant is seated on the cushion part 4, the plurality of detection parts 21a. At least one of these is turned on, and seating on the cushion portion 4 can be detected.

  Next, the operation when an occupant is seated on the seating sensor 8 according to the first embodiment will be described below. First, for comparison, the operation in the case of a seating sensor that does not have a through hole in a concave groove and does not have a holding member will be briefly described with reference to FIG.

  FIGS. 10A and 10B are cross-sectional views showing a state in which the film-like main body is inserted into the concave groove 91 having no through hole. FIG. 10A shows a state in which no occupant is seated on the pad member 92. FIG. 10B shows a state in which an occupant is seated on the pad member 92 and the seating load is input from the upper side to the lower side, and the pad member 92 is greatly deformed by compression deformation. As is apparent from FIG. 10B, if there is no through hole, the leading end portion 90 a of the bending portion 90 that moves downward together with the pad member 92 eventually comes into contact with the bottom surface 91 a of the concave groove 91. Then, the front end portion 90 a receives a reaction force from the bottom surface 91 a of the groove 91, and the reaction force deforms the bent portion 90 into a shape along the inner shape of the groove 91. As a result, the slidable contact portions 90b and 90b where the bent portion 90 is slidably contacted with the inner surfaces 91b and 91b of the concave groove 91 press the slidable contact portions of the inner surfaces 91b and 91b of the both grooves. Under the force, the bent portion 93 that is bent from the upper surface of the pad member 92 into the concave groove 91 is bent and deformed (see FIG. 10B). In this way, the bent portion 93 may be broken or damaged.

  Next, the operation of the mounting structure for the seating sensor 8 according to the present invention will be described. As shown in FIG. 9, a holding member 30 that holds the film-like main body 21 of the seating sensor 8 penetrates at a predetermined depth from the seating surface of the pad member 10 in the concave groove 14 and the through hole 10 a. The anchoring member 16 exposed in the hole 10a and the fixing portion 35 of the holding member 30 are fitted and fixed.

  When the occupant sits on the upper surface of the pad member 10 via the skin member 12, the pad member 10 sinks downward according to the weight of the occupant (see FIG. 9B). As a result, the upper surface of the pad member 10 includes the film-like main body 21 fixed to the upper surface of the pad member 10 and the conductive portion 21c (including the bent portion 21d) of the film-like main body 21 held in the holding member 30. At the same time as it sinks, it moves downward by the same amount as the upper surface. At this time, the holding member 30 holding the film-like main body 21 is fixed by the lower fixing portion 35 and is restricted from moving in the vertical direction. Accordingly, the conductive portion 21c (including the bent portion 21d) and the holding member 30 slide relative to each other, and the bent portion 21d disposed below the pushing portion 31 of the holding member 30 In conjunction with the sinking of the upper surface, the gap portion 38 moves downward from the initial mounting state. However, since the height of the gap portion 38 is determined in consideration of the amount of sinking of the upper surface of the pad member 10, the conduction portion 21 c (curved portion 21 d) moves downward and contacts the lower end of the gap portion 38. There is no possibility of receiving a reaction force from the lower end of the gap 38.

  Then, the portions other than the bent portion 21d of the conducting portion 21c that is bent downward from the seating surface are also interlocked with the sinking of the upper surface of the pad member 10, and both side edges 32, 32 of the holding member 30 and the pushing portion 31 are connected. It moves downward in both passages 37, 37 between both side edges 31a. Between the slidable contact portions 32a and 32a and the back surface of the conductive portion 21c, the conductive portion 21c causes the slidable contact portions 32a and 32a to be connected to the slidable contact portions 32a by a return force that the bent portion 21d attempts to return linearly. Press in the direction orthogonal to 32a. However, since both sliding contact parts 32a and 32a and the conduction | electrical_connection part 21c slide favorably, the conduction | electrical_connection part 21c receives resistance from both sliding contact parts 32a and 32a, and is by the reaction force from both sliding contact parts 32a and 32a. There is no possibility that the bent portion that bends downward from the seating surface is deformed to cause disconnection or the like.

  In the present embodiment, the connecting portion 33b at one end of the pushing portion 31 is connected to one connecting side wall 33 so as to be openable and closable, and the other end of the pushing portion 31 is engaged with and disengaged from the other connecting side wall 33 by a snap fit. Connected as possible. However, the present invention is not limited thereto, and both ends of the pushing portion 31 may be coupled by snap fitting so that the pushing portion 31 can be completely detached from the pair of connecting side walls 33. Further, as a method of connecting one end of the pushing portion 31 to the one connecting side wall 33 so as to be openable and closable, it is not only integrally connected with resin, but may be constituted by another member such as a hinge. Furthermore, the parts connected by snap fitting may be screwed.

  Further, in the present embodiment, the through hole 10a may be formed as a deep hole having a predetermined depth without penetrating the back surface of the pad member 10. Here, the predetermined depth is formed between the surface 34 a of the bottom wall 34 of the holding member 30 and the lower surface 31 a of the pushing portion 31 when the holding member 30 is inserted into the recessed groove 14 and into the deep hole. What is necessary is just the depth which can ensure the magnitude | size of the space | gap part 38 more than necessary. At this time, as a method of fixing the pushing portion 31 and the side edge portions 32 and 32 in the recessed groove 14, the fixing portion 35 is not fitted to the mooring member 16, but the fixing portion 35 is eliminated and the bottom of the holding member 30 is removed. Alternatively, the wall lower surface 34b may be brought into contact with the lower surface of the deep hole.

  Further, as another fixing method, the fixing portion 35 is abolished, and the distance between the outer surfaces of the side edges 32, 32 is made larger by a predetermined amount than the distance between the inner surfaces 14a, 14a. , 14a may be pressed and fixed to each other by fitting the side edges 32, 32 to each other. This also provides the same effect.

  Furthermore, in this embodiment, between the side edges 32 and 32 of the holding member 30 and both groove inner side surfaces 14a and 14a, between the side edges 32 and 32 and the through-hole 10a, and the connecting side wall of the holding member 30 There was a slight gap between the holes 33 and 33 and the through hole 10a. However, the present invention is not limited to this, and at least one of the two is fitted without a gap, and at least one of the side edge portions 32, 32 and the connecting side walls 33, 33 is used as another fixing portion together with the fixing portion 35. You may make it utilize for fixation. As a result, a larger effect can be obtained for fixing the holding member 30.

  As is clear from the above description, in the first embodiment, the pushing portion 31 of the holding member 30 pushes the bent portion 21d of the conducting portion 21c of the film-like main body 21 into the concave groove 14, so that the bent portion 21d. Can be smoothly inserted into the concave groove 14 together with the holding member 30. Thus, by using the holding member 30 for the bent portion 21d of the film-like main body 21 that is flexible and difficult to insert into the concave groove 14 by itself, it can be easily placed at a desired position of the pad member 10. And it can be assembled quickly. Moreover, there is a high possibility of being able to cope with a change in the shape of the groove, and the versatility is excellent.

  Further, the bent portion 21d of the film-like main body 21 inserted into the concave groove 14 together with the holding member 30 fixed in the concave groove 14 by the fixing portion 35 allows the occupant to sit on the seating side surface of the pad member 10 and pad. When the member 10 is compressed in the seating load input direction, the film-like main body 21 laid on the seating side surface sinks together with the seating side surface and moves in the seating load input direction. At the same time, the back surface of the conducting portion 21c that forms the bent portion 21d includes a pushing portion 31 of the holding member 30 fixed in the concave groove 14 and a pair of side edge portions 31 having a pair of sliding contact portions 31a. It moves while being in sliding contact with the sliding contact portion 31a. As a result, no large resistance is generated in the conducting portion 21c due to the movement, and the conductive portion 21c can move smoothly between the side edges 32, 32 and the side edges 31b, 31b of the pushing portion 31. Further, a gap portion 38 is provided in the seating load input direction of the bent portion 21d. Therefore, even if the bent portion 21d moves in the seating load input direction, it does not come into contact with any part, and no reaction force is applied from the contacted part. That is, local bending deformation due to the reaction force is unlikely to occur, and disconnection and breakage due to this can be suppressed.

  In addition, the holding member 30 can be freely fixed at an arbitrary position in the seating load input direction in the concave groove 14 by the fixing portion 35. Thereby, the depth of the holding member 30 can be freely set, and when the seated person is seated, the seated person's buttocks or the like touches the holding member 30 so that the seated person does not feel uncomfortable.

  Moreover, in 1st Embodiment, the pushing part 31 is connected with at least one of the both connection side walls 33 and 33 formed by connecting between the both ends of the both-side edge parts 32 and 32 so that engagement / disengagement is possible. Accordingly, when the conducting portion 21c of the film-like main body 21 is mounted on the holding member 30, the pushing portion 31 is opened and the conducting portion 21c is inserted into the gap portion 38 of the holding member 30, and then the pushing portion 31 is connected to the connecting side wall 33. By being engaged with and closed, it can be easily mounted, and the assembly man-hour can be reduced.

  Further, in the first embodiment, the bottom walls 34 are formed by connecting the lower ends of the side edges 32, 32, and the clip-shaped cross-section fixing portion 35 having a fitting groove 36 on the back surface of the bottom wall 34. And the fixing part 35 is fitted to the anchoring member 16 exposed below the gap part 38. Accordingly, the holding member 30 is fixed in the concave groove 14 via the fixing portion 35 and is positioned in the seating load input direction. Thus, the holding member 30 can be fixed and positioned by a very simple and low-cost structure and method.

  Next, a second embodiment will be described with reference to FIGS. The second embodiment is different from the first embodiment in the structure of the holding member. In the first embodiment, the pushing portion 31 is detachably provided to the holding member 30, and at least one end of the pushing portion 31 is detached and opened to open the conducting portion 21 c of the film-like main body 21 to the gap portion of the holding member 30. 38.

  However, in the second embodiment, at least one end of each side edge 42 of the pair of side edges 42, 42 can be detached from the holding member 40, and each side edge 42 is opened to open the film-like main body. 21 are installed in the passage of the holding member 40 and in the gap 49. Further, with such a change in the structure of the holding member 40, the method for fixing the holding member 40 to the concave groove 14 is different. From here, only the changes with respect to the first embodiment will be described, and description of similar parts will be omitted. In addition, the same components are described with the same reference numerals.

  As shown in FIGS. 11 and 12, the holding member 40 according to the second embodiment is formed of a resin or a rubber material. The holding member 40 includes a pushing portion 41, a pair of side edge portions 42, 42, which are opposed to the groove inner side surfaces 14 a, 14 a of the groove 14 when disposed in the groove 14, and a pair of extending members. It has the exit side walls 43 and 43, a pair of downward extension parts 44 and 44, and the fixing | fixed part 45 which the both-sides edge part 42 shares.

  As shown in FIG. 11, the push-in portion 41 has a U-shaped cross section orthogonal to the groove 14 and extends in parallel with the groove 14. The pushing part 41 has both side end surfaces 41b and 41b including both side edges extending downward from both side edges extending in parallel with the concave groove 14 positioned at the upper end of the pushing part 41.

  The pair of side edge portions 42 and 42 each have a horizontally long rectangular plate shape. Both side edge portions 42, 42 are located between both groove inner side surfaces 14 a, 14 a of the recessed groove 14 and both side end surfaces 41 b, 41 b including both side edge ends of the pushing portion 41, and both groove inner side surfaces 14 a, 14 a and both side edge portions 42. , 42 are interposed in parallel with each other. At this time, between the side edge portions 42 and 42 and the side end surfaces 41b and 41b of the push-in portion 31, the conduction portion 21c of the film-like main body 21 passes so that the thickness of the conduction portion 21c can be favorably moved in the vertical direction. It has a slightly larger gap. Further, the side edges 42, 42 are paired with a surface facing the back surface of the conduction portion 21c so that the conduction portion 21c does not receive a large resistance by sliding contact with the side edges 42, 42 when the conduction portion 21c moves. The sliding contact portions 42a and 42a are provided. Then, a pair of passages 47 whose top view is rectangular by spaces surrounded by both side edge portions 42, 42, both extended side walls 43, 43, and both passage inner side surfaces 41 b as both end edges of the pushing portion 41. 47 are formed. The conductive portions 21c of the film-like main body 21 pass through the passages 47 and 47, respectively, and move in the vertical direction, which is the input direction of the seating load.

  Both side edge portions 42 and 42 can be engaged and disengaged by snap fitting or the like at the other end of each of the extended side walls 43 and 43, and are connected to be openable and closable using a connecting portion 43a on one end side as a fulcrum. ing. In the state where both side edges 42, 42 are both engaged and closed with respect to the extended side walls 43, 43, the distance between the outer surfaces of the side edges 42, 42 is the distance between both grooves of the concave groove 14. It is larger than the distance between the side surfaces 14a, 14a by an arbitrary amount. Thus, when both side edges 42, 42 are inserted into the concave groove 14 with both side edges 42, 42 closed against both extended side walls 43, 43, both side edges 42, 42 The both side edge portions 42 and 42 are pressed from both groove inner side surfaces 14 a and 14 a of the groove 14. As a result, the side edges 42, 42 function as a fixing part 45, and the side edges 42, 42 and the push-in part 41 connected to the side edges 42, 42 via both extended side walls 43, 43 are concave grooves. 14 is fixed.

  The pair of downward extending portions 44 extend from both the extending side walls 43, 43 in the seating load input direction, and a pair of cutout portions 48, 48 are formed at the lower end portion formed in an R shape. The notches 48, 48 have an inlet portion 48a having a width larger than the outer diameter of the wire so that the wire as the anchoring member 16 can be received, and the arc-shaped receiving portion 48b continuously from the inlet portion 48a above the inlet portion 48a. have.

  Between the line L connecting the upper ends of the notches 48 and 48 and the lower surface 41a of the push-in portion 41, a gap portion 49 is formed, which is a space that allows movement of the conducting portion 21c (bending portion 21d). ing. The size in the vertical direction that is the input direction of the seating load of the gap 49 is formed by a size that exceeds the maximum sinking amount of the pad member 10 that is assumed when the occupant is seated on the seating surface of the pad member 10. ing.

  Next, the through hole 50 of the concave groove 14 into which the holding member 40 is inserted will be described. A through hole 50 penetrating through the back surface of the pad member 10 is formed in the bottom portion 14b of the concave groove 14 into which the holding member 40 is inserted. The top view shape of the through hole 50 is formed according to the outer shape of the holding member 40 inserted into the through hole 50. The outer shape of the holding member 40 in the portion inserted into the through-hole 50 is the side edges 42, 42 in a closed state, and both extended side walls 43, 43 or both lower extensions 44, 44. It has a substantially rectangular shape formed by the portions 42 and 42 and both the extending side walls 43 and 43 or both the downward extending portions 44 and 44. The through hole 50 is in a fitted state with no gap between the outer surfaces of the side edges 42, 42 of the holding member 40, and between the extended side walls 43, 43 or the lower extended parts 44, 44. Are formed with a slight gap. In some cases, both side edges 42, 42 do not reach the through hole 50 and are not inserted into the through hole 50. However, at that time, it is only necessary to form the through hole 50 so that only the both downward extending portions 44 and 44 can pass therethrough.

  Then, as shown in FIG. 13, the wire which is the anchoring member 16 fitted to the notches 48 and 48 is exposed at a predetermined position below the through hole 50 and is arranged in parallel with the concave groove 14. .

  Next, attachment of the film-like main body 21 to the holding member 40 will be described. In order to insert and attach the film-like main body 21 to the holding member 40, first, the snap-fit engagement of the other end portions 42, 42 for closing both the passages 47, 47 of the film-like main body 21 is released, The doors 42 and 42 are opened using the connecting portions 43a at the respective ends of the side edges 42 and 42 as fulcrums. As a result, both the passages 47 and 47 and the gap 49 are opened.

  In this state, the surface of the conducting portion 21c of the film-like main body 21 is brought into contact with the lower surface 41a of the pushing portion 41 or is arranged in the vicinity of the lower surface 41a, and other portions of the film-like main body 21 are disposed on both sides of the pushing portion 41. Both side edges 42, 42 are closed in a state along the end faces 41b, 41b. Thereby, the attachment of the film-like main body 21 to the holding member 40 is completed. As described above, since the other ends of the side edge portions 42 and 42 can be opened and closed, the film body 21 can be easily attached to the holding member 40 in a short time.

  Next, attachment of the holding member 40 holding the film-like main body 21 to the cushion portion 4 (concave groove 14) will be described. First, the holding member 40 holding the film-like main body 21 in the recessed groove 14 and the through hole 50 of the pad member 10 is extended to both sides of the holding member 40 in a state where the cushion member 4 is not covered with the skin member 12. The film-like main body 21 is arranged and inserted so as to cross the concave groove 14 from the protruding portions 44 and 44 side. Since the lower end portions of the lower extending portions 44, 44 are formed in an R shape, it can be smoothly inserted into the concave groove 14 and the through hole 50. The film-like main body 21 is inserted into the recessed groove 14 and the through hole 50 together with the holding member 40 by the same action as in the first embodiment. Thereby, the film-like main body 21 that is soft and difficult to insert by itself can be inserted smoothly and in a short time without damaging the groove 14.

  And since it is comprised so that both the side edge parts 42 and 42 of the holding member 40 and both the groove inner surfaces 14a and 14a of the ditch | groove 14 may fit, the holding member 40 is the downward direction of the holding member 40. The groove inner side surfaces 14a and 14a are inserted while being expanded until the notch portion 48 provided on the anchor member 16 and the anchoring member 16 exposed in the through hole 10a are engaged. When the notch 48 and the wire are engaged, the movement of the holding member 40 in the vertical direction is stopped and the positioning is performed in the vertical direction.

  At this time, both side edge portions 42 and 42 as the fixing portion 45 are pressed by both groove inner side surfaces 14a and 14a, whereby both side edge portions 42 and 42 and the pushing portion 31 as the holding member 40 are in the recessed groove 14. To be properly fixed.

  By holding the film-like main body 21 by the holding member 40 in this way, the soft film-like main body 21 that can be damaged or broken depending on how it is bent is smoothly assembled into the concave groove 14. Moreover, it can be carried out in a short time without damaging it and is very effective.

  The operation of the mounting structure of the seating sensor 8 according to the second embodiment is the same as the operation of the first embodiment (see FIGS. 14A and 14B). In the first embodiment, the gap portion 38 is formed between the pushing portion 31 and the bottom wall 34, but in the second embodiment, the gap portion 49 is formed between the pushing portion 41 and the upper end of the anchoring member 16. did. Since only this point is different, description of the function and effect is omitted.

  In the second embodiment, the notch portions 48 and 48 provided at the tips of the both downward extending portions 44 and 44 and the anchoring member 16 exposed in the through hole 50 may be eliminated. Also by this, the holding member can be fixed at an arbitrary position in the concave groove 14, and the vertical positioning can be performed by the fixing, and other effects can be expected similarly. The mooring member 16 may be disposed in the pad member 10 by bypassing the through hole 50 so as not to be exposed in the through hole 50.

  In addition, the both downwardly extending portions 44 and 44 having an R shape at the front end portion for facilitating the insertion into the concave groove 14 are smooth without any great resistance when the holding member is inserted into the concave groove 14. If it can be inserted, it may be abolished. A corresponding effect can be expected also by this.

  Further, in the second embodiment, one end of both side edge portions 42, 42 is connected so as to be openable and closable with the connecting portion 43a as a fulcrum, and the other end of both side edge portions 42, 42 is engaged and disengaged by snap fit. Configured. However, the present invention is not limited to this, and both ends of both side edges 42, 42 may be connected by snap fit so that both side edges 42, 42 can be completely detached from the pair of extended side walls 43, 43. In addition, as a method of connecting one end of the side edge portions 42 and 42 to one of the extending side walls 43 and 43 so as to be openable and closable, it is not only integrally connected with a resin, but also constituted by another member such as a hinge. Also good.

  Furthermore, in the second embodiment, the through hole 50 may be formed as a deep hole having a predetermined depth without penetrating the back surface of the pad member 10. Here, the predetermined depth means that when the holding member 40 is inserted into the concave groove 14 and into the deep hole, the required size of the gap portion 49 can be secured, and the anchoring member is placed in the deep hole below the gap portion 49. What is necessary is just the depth which can ensure 16 exposed parts. This also provides the same effect.

  As is apparent from the above description, in the second embodiment, both the extended side walls 43, 43 extending from the pushing portion 41 toward the side edge portions 42, 42 are fixed to both side ends of the pushing portion 41, respectively. The side edge portions 42 and 42 are detachably connected to the extending side wall 43 at at least one of both side ends of the side edge portions 42 and 42. Thus, when the conductive portion 21c of the film-like main body 21 is attached to the holding member 40, at least one of both side ends of each side edge portion 42 is detached and opened, and the conductive portion 21c is inserted into the holding member 40. The side edges 42 can be easily attached by being engaged with the extended side walls 43 and closed, and the number of assembling steps can be reduced.

  Further, in the second embodiment, the lower end portions of the pair of lower extending portions 44 extending in the seating load input direction are provided with the notched portions 48, and the notched portions 48 are located below the gap portions 49. The holding member 40 is positioned in the input direction of the seating load by engaging with the exposed anchoring member 16. Thus, the holding member 40 can be positioned by a very simple and low-cost structure and method.

  Next, a third embodiment will be described with reference to FIGS. The third embodiment differs from the first and second embodiments only in the structure of the fixing portion of the holding member and the presence or absence of the anchoring member 16 in the through hole. Thus, only changes to the first and second embodiments will be described, and description of similar parts will be omitted. In addition, the same components are described with the same reference numerals.

  The holding member of the third embodiment can be based on both the holding members 30 and 40 of the first and second embodiments, but this time, as shown in FIG. Description will be made based on the holding member 30 of the form.

  The holding member 60 according to the third embodiment is made of resin or rubber material. As shown in FIG. 15 to FIG. 17, the holding member 60 includes a pushing portion 61 and a pair of side edges that face the groove inner side surfaces 14 a and 14 a of the groove 14 when inserted into the groove 14. Portions 62, 62, a pair of connecting side walls 63, 63, a push-in portion 61, a pair of horizontal extending portions 69, 69 as fixing portions for fixing the side edge portions 62, 62 in the concave groove 14, and a gap Part 66.

  The pushing portion 61 and the pair of side edge portions 62 and 62 are substantially the same as the holding member 30 of the first embodiment, and thus description thereof is omitted. The holding member 60 does not have the bottom wall 34 and the fixing portion 35.

  A pair of horizontal extending portions 69 and 69 having a function as a fixing portion are extended horizontally and outward from the upper end edges of the side edge portions 62 and 62 in a direction perpendicular to the groove 14. A pair of seats 65 formed in the concave groove 14 are in contact with the lower surfaces of the horizontal extending portions 69 and 69, and the holding member 60 is supported and positioned in the vertical direction via the horizontal extending portions 69 and 69. A contact surface 69a is formed.

  The seat portion 65 is formed on the bottom surface of the notch portion of the pad member 10 formed by removing both horizontal extending portions 69, 69 of the holding member 60 from above so as to be inserted to an arbitrary depth in the concave groove 14. ing. The distance from the seating surface of the pad member 10 of the seat portion 65 that determines the arrangement depth of the holding member 60 may be arbitrarily determined. For example, when the occupant is seated, the holding member 60 is attached to the body of the occupant's buttocks or the like. It is preferable that the depth is set so that the passenger touches a part and does not feel uncomfortable.

  And the through-hole 70 is penetrated by the bottom part 14b in the ditch | groove 14 in which the holding member 60 is inserted similarly to the through-hole 10a of 1st Embodiment. The through-hole 70 is provided with a slight gap between the through-hole 70 and the holding member 60 according to the outer shape of the holding member 60 in the same manner as the through-hole 10a. Further, the anchoring member 16 does not pass through the through hole 70.

  Then, the holding member 60 configured as described above is inserted into the concave groove 14, and the abutting surfaces 69 a of both horizontal extending portions 69, 69 are brought into contact with the upper surface of the seat portion 65 to be seated. Is positioned in the depth direction in the concave groove 14, and the pushing portion 61 and both side edge portions 62, 62 of the holding member 60 are fixed in the concave groove 14. The gap portion 66 is formed in the through hole 70 below the pushing portion 61 in a state where the holding member 60 is fixed in the concave groove 14.

  In the holding member 60 according to the third embodiment configured as described above, the film-like main body 21 is held by the holding member 60 by the same mounting method as the holding member 30 of the first embodiment using the base ( (See FIG. 16). The action when the occupant sits on the seating surface of the pad member 10 is the same as that of the first embodiment (see FIG. 18).

  In the third embodiment, the horizontally extending portion 69 is horizontally extended from both side edge portions 62 and 62 of the holding member 60 in a direction perpendicular to the groove 14. However, the present invention is not limited to this, and as a modified example, the horizontal extending portion may be extended in parallel with the concave groove 14 and horizontally from the connecting portion connecting the pushing portion 61 and the side edge portions 62 and 62. At this time, the seat portion provided in the pad member 10 may be provided on the bottom portion 14b of the concave groove 14, or may be formed at a deeper position by processing the bottom portion 14b of the concave groove 14. This also provides the same effects as described above. Moreover, although the horizontal extension part 69 was made into a pair, not only this but one side may be sufficient.

  In the third embodiment, only the horizontal extending portion 69 has the function of the fixing portion. However, the present invention is not limited thereto, and another fixing portion is formed by penetrating the through hole 70 so that the holding member 60 inserted into the through hole 70 is in a fitted state. May be fixed to the through hole 70.

  Furthermore, in the third embodiment, when the holding member 40 of the second embodiment is used as a base, the both side edges 42, 42 of the holding member 40 are horizontally closed in a direction perpendicular to the groove 14. A pair or one horizontal extending portion that extends horizontally from both extending side walls 43, 43, which are connecting portions that connect the side edge portions 42, 42 and the pushing portion 41, in the direction of the groove 14. May be provided.

  As is apparent from the above description, in the third embodiment, the horizontal extending portion 69 that is a fixing portion that extends horizontally from both side edge portions 62 and 62 of the holding member 60 in a direction perpendicular to the concave groove 14. The horizontal extension 69 abuts against a seat 65 formed in the groove 14 to position and fix the holding member 60 in the depth direction in the groove 14. Thus, the positioning and fixing of the holding member 60 in the input direction of the seating load can be performed so as not to give the seated person a sense of incongruity by the very simple and low-cost structure and method of providing the horizontal extending portion 69. .

  In addition, as an aspect of a fixing | fixed part, it is not restricted to what was shown in the 1st thru | or 3rd embodiment. For example, the arm extends from the holding member into the groove in parallel to the groove, and the orthogonal arms extend from the arm in two directions perpendicular to the inner surfaces of the grooves at a position slightly spaced from the holding member. The holding member may be fixed by pressing the inner side surfaces of both grooves from the inside with the tip of the orthogonal arm.

  The vehicle seat sensor mounting structure according to the present invention is suitable for use in a vehicle seat that detects that an occupant is seated on a cushion portion.

DESCRIPTION OF SYMBOLS 2 ... Vehicle seat, 4 ... Cushion part, 6 ... Seat back, 8 ... Seat sensor for vehicle seats, 10 ... Pad member, 10a, 50, 70 ... Through-hole, 12 ... Skin member, 14 ... Concave groove, 14a ... Groove Inner surface, 16 ... anchoring member, 21 ... film-like main body, 30, 40, 60 ... holding member, 31, 41, 61 ... push-in portion, 32, 42, 62 ... side edge, 33, 63 ... connecting side wall, 34 ... bottom wall, 35, 45 ... fixing part, 36 ... fitting groove, 37, 47 ... passage, 38, 49, 66 ... gap part, 43 ... extension side wall, 44 ... downward extension part, 48 ... notch part , 65 ... seat part, 69 ... horizontal extension part (fixed part).

Claims (6)

Between the seating side surface of the vehicle seat pad member in which the concave groove having the inner surface of the opposing groove is recessed and the skin member attached to the pad member so as to cover the seating side surface, the concave A plurality of detectors that are laid across the groove and have a back surface in contact with the seating side surface, and detect a seating load on the pad member; an external output unit that outputs a load signal detected by the detector; and A flexible film-like main body having a conduction part that conducts between a plurality of detection parts and between the detection part and the external output part;
A pushing portion for inserting a bent portion formed by bending a part of the conducting portion of the film-like main body into the concave groove so as to be movable in the input direction of the seating load by pressing the surface of the bent portion. , Interposed between the pushing portion and the groove inner surface facing the pushing portion, and connected to the pushing portion with a gap for allowing the conducting portion to pass between both end edges of the pushing portion. A holding member provided with a fixing portion that fixes the both side edge portions in contact with the back surface of the conducting portion, and the indented portion and the both side edge portions in the recessed groove while being inserted into the recessed groove;
A gap formed below the pushing portion and allowing the bent portion to move in the input direction of the seating load when the seating load is input;
A mounting structure for a seat sensor for a vehicle seat, comprising:   In Claim 1, The said holding member has a pair of connection side wall which respectively connects between the both-sides ends of the said both side edge part which opposes, The said pushing part is connected with at least one of the said both connection side walls so that engagement / disengagement is possible. An installation structure for a seat sensor for a vehicle seat.   3. The holding member according to claim 2, wherein the holding member includes a bottom wall that connects lower ends of the opposite side edges, and includes the gap between a surface of the bottom wall and the pushing portion, and the bottom The clip has a fixed portion having a clip-shaped cross section having a fitting groove on the back surface of the wall, and the fixed portion is embedded in the pad member to be engaged with the skin member and exposed below the gap portion. A mounting structure for a seat sensor for a vehicle seat, which is fitted to the exposed portion of the member.   2. The holding member according to claim 1, wherein the holding member has an extending side wall that is fixed to both side ends of the push-in portion and extends toward the side edge portions, and the side edge portions are provided at both side ends of the side edge portions. At least one of the seat mounting sensors for a vehicle seat is detachably connected to the extending side wall.   5. The extension wall according to claim 4, wherein the extension side wall is provided with a downward extension portion extending in an input direction of the seating load, and a notch portion is formed at a lower end portion of the downward extension portion. The seat is engaged with the exposed portion of the mooring member embedded in the pad member and exposed below the gap to lock the skin member. .   The fixing portion according to claim 1, wherein the fixing portion includes a horizontal extension portion that extends horizontally from the both side edge portions in a direction perpendicular to the groove, or a connecting portion that connects the pushing portion and the both side edge portions. It has a horizontally extending portion extending horizontally in the groove direction, and the extending portion comes into contact with a seat formed in the groove so that the holding member is moved in the depth direction in the groove. A mounting structure for a seat sensor for a vehicle seat, characterized by positioning.

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