JP5802416B2 - Linear member for vehicle seat - Google Patents

Description

  The present invention relates to a linear member of a vehicle seat, and more particularly to a linear member of a vehicle seat provided for transmitting power in the vehicle seat.

  2. Description of the Related Art Conventionally, in a vehicle seat, a vehicle seat that can shift from a normal use state (a state in which an occupant can be seated) to a storage state in which the seat back is tilted forward and stored is known. Such a vehicle seat is generally provided with a linear member such as a cable or a wire for transmitting power for operating each part of the seat.

  The ends of the linear members such as cables and wires are connected to an operation unit operated by an occupant, and the occupant operates the operation unit to transmit the power to the seat frame via the linear member. It is possible to arbitrarily adjust the shape (use state or storage state) of the sheet.

And when attaching such a linear member to a vehicle seat, a technique that can be easily attached in an accurate attachment state has been desired.
Regarding the attachment technique of the linear member provided in such a vehicle seat, in Patent Document 1, in the vehicle seat provided with the seat flip-up mechanism, the cable connected to the operation unit is on the vehicle body side (the striker side). A technique for connecting to a provided cable is disclosed.

JP 2007-50815 A

In Patent Document 1, an engaging member provided with a claw piece is attached to an end of a linear member (described as “cable” in Patent Document 1), while the engaging member is The structure provided with the hole for latching the nail | claw piece of an engaging member is disclosed by the receiving member latched.
In this way, by engaging the engaging member provided at the end of the linear member with the receiving member provided with the hole, the linear member is fixed to the receiving member in an accurate attachment state. be able to.

  However, according to the technique disclosed in Patent Document 1, it is necessary to provide a receiving member having a hole in the object to be attached to the linear member, which increases the number of parts and complicates the part configuration, There was a problem that the manufacturing work became complicated. Therefore, there has been a demand for a technique capable of simplifying the manufacturing process by making the linear member and the object to be attached (such as a vehicle seat or a bracket provided on the vehicle body) simpler.

  Furthermore, in the technique disclosed in Patent Document 1, since the linear member provided with the engaging member is attached to the attachment target provided with the receiving member, the number of parts of the linear member and the attachment target increases. . As a result, there is a problem that the rigidity of the attachment portion is reduced because the number of joint portions of each member increases.

  An object of the present invention is to provide a linear member for a vehicle seat that can be easily attached to an object to be attached without using a complicated configuration in the linear member for the vehicle seat. In addition, another object of the present invention is to provide a linear member for a vehicle seat that can improve the rigidity of the engaging member in the linear member of the vehicle seat and can be securely attached to the attachment target. There is.

According to the linear member of the vehicle seat according to claim 1 of the present invention, the subject is inserted into the linear member insertion hole formed in the seat frame of the vehicle seat capable of switching between the seating posture and the storage posture. A linear member that is engaged with the linear frame, and a wire member that transmits power to the seat frame, and an engagement member that is attached to an end of the wire member and engages with the linear member insertion hole. The engaging member is fixed to the wire, and is inserted into the linear member insertion hole, and a restricting portion that restricts a relative position between the linear member insertion hole and the wire. , Ri Na and wherein the engaging member body portion includes said wire base portion formed along the extending direction of the bent portion which is bent from the base portion, the said regulation The portion is along a direction orthogonal to the extending direction of the base portion and the extending direction of the bent portion, respectively. Be solved by Rukoto, such is formed extending from a side surface of said base portion.

A seat frame provided in a vehicle seat capable of switching between a seating posture and a storage posture is provided with a wire for transmitting power. An engaging member is provided at the end of the wire, and the engaging member is engaged with the linear member insertion hole by being inserted into the linear member insertion hole provided in the seat frame. At this time, the relative position between the wire and the linear member insertion hole is restricted by the restriction portion provided in the engaging member.
As described above, the linear member of the present invention only needs to include an engaging member having a simple configuration, and when the operator attaches the linear member of the present invention to the seat frame, the linear member is inserted into the linear member insertion hole. The attachment work can be easily performed only by inserting the engaging member. In addition, it is only necessary to provide a linear member insertion hole in the seat frame, and since it becomes possible to attach the linear member with a simple configuration, the manufacturing process is simplified in the work of attaching the linear member. Improves.
Furthermore, since the position of the linear member insertion hole and the wire is regulated by the regulating member, the linear member can be attached to the seat frame in an appropriate attachment state.
Furthermore, the engaging member main body portion of the engaging member includes a base portion extending along the main body direction of the wire, and a bent portion bent from the base portion, and is formed in a substantially bowl shape. . And the control part is formed from the side surface of the engagement member main-body part formed in the collar shape so that it may be substantially orthogonal with respect to the bending direction of a bending part. On the other hand, for example, if the restricting portion is extended along the bending direction of the bent portion, in the engaging member, the bending direction of the bending portion is the size of the restricting portion. Although there is an inconvenience of increasing the size, the size of the engaging member can be minimized by the above configuration.
Further, since the restricting portion extends from the side surface of the base portion in a direction substantially orthogonal to the extending direction of the bent portion, the rigidity of the engaging member itself can be improved by the thickness of the restricting portion.
Furthermore, the engaging member configured as described above is easy to engage the bent portion and the restricting portion against the periphery of the linear member insertion hole provided in the seat frame of the vehicle seat. The shaped member can be attached to the linear member insertion hole in an appropriate insertion state.

According to a second aspect of the present invention, it is preferable that the restricting portion is a protruding portion protruding from the engaging member main body, and the protruding portion is formed integrally with the engaging member main body.
In this manner, the restricting portion of the engaging member provided at the end portion of the wire rod is formed as a protruding portion protruding from the engaging member main body portion, and further formed integrally with the engaging member main body portion, whereby the engaging member This not only simplifies the structure, but also improves the rigidity. Therefore, the linear member can be securely attached to the seat frame.

Furthermore, as according to claim 3, wherein the engaging member is made form in a state where the end portion of the wire is embedded, at least a portion of the projecting portion overlaps with the wire in an extending direction of the wire It is preferable that it is formed at a position.
Thus, since the engaging member is molded in a state where the end portion of the wire is embedded , the attachment rigidity between the engaging member and the wire is improved. And if at least a part of the projecting portion is formed at a position where it overlaps the wire, the end of the wire is disposed at the portion where the thickness is increased by the projecting portion. Bonding strength is improved.

According to a fourth aspect of the present invention, the protruding portion is formed between an end surface of the wire and an end surface of the engagement member main body portion on the side where the wire is extended, and the side surface of the protruding portion. It is preferable that a part of is disposed at the same position as the surface on the side extended from the base portion, among the side surfaces of the bent portion in the extending direction of the base portion .
Thus, a configuration in which a part of the side surface of the protruding portion is arranged at the same position as the surface on the side extended from the base portion of the side surface of the bent portion in the extending direction of the base portion. Then, the protruding portion is provided in the vicinity of the boundary portion where the base portion and the bent portion are bent, and the rigidity of the boundary portion is improved .

Further, as in claim 5, the protruding portion is formed in a columnar shape, and the diameter of the protruding portion is that of the end portion on the side where the end portion of the wire is embedded in the engaging member main body portion. It is preferable that the diameter is smaller than the diameter .
Thus, in the configuration in which the diameter of the protruding portion is smaller than the diameter of the end portion on the side where the end portion of the wire is embedded in the engaging member main body portion, the engaging member does not increase in size and is engaged. There is no need to unnecessarily increase the size of the linear member insertion hole through which the member is inserted. For this reason, it is possible to suppress that the rigidity of the seat frame in which the linear member insertion hole is formed is impaired.

According to the first aspect of the invention, since the engaging member attached to the end of the wire constituting the linear member is provided with the restricting portion, the linear member insertion hole provided on the seat frame side is provided. The linear member can be easily attached to the seat frame simply by being inserted. In addition, the engagement member main body can be formed in a bowl shape, and the engagement member can be made compact by providing a restricting portion at an appropriate position. Furthermore, since the rigidity of the engaging member is improved, the linear member can be firmly attached to the seat frame.
According to the second aspect of the present invention, the restricting portion formed on the engaging member is a protruding portion that protrudes from the engaging member main body portion and is formed integrally with the engaging member main body portion. Stiffness is improved. Therefore, since the rigidity of the engaging member provided in the linear member is improved, the linear member can be reliably attached to the seat frame.
According to invention of Claim 3, since the edge part of a wire is embed | buried and shape | molded in the engagement member, the joint strength of a wire and an engagement member improves. Moreover, since it arrange | positions so that a part of protrusion may overlap with a wire, the joint strength of a wire and an engaging member improves further. As described above, since the bonding strength between the wire and the engagement member is improved, the wire member can be firmly attached when the wire member is attached to the seat frame.
According to invention of Claim 4, a part of side surface of a protrusion part is arrange | positioned in the same position as the surface which exists in the side currently extended from the base part among the side surfaces of a bending part in the extension direction of a base part. Therefore, the projecting portion is provided in the vicinity of the boundary portion where the base portion and the bent portion are bent, and the rigidity of the boundary portion is improved .
According to the invention of claim 5, since the diameter of the protruding portion is smaller than the diameter of the end portion on the side where the end portion of the wire is embedded in the engaging member main body portion, the engaging member does not increase in size, It is not necessary to increase the size of the linear member insertion hole through which the engaging member is inserted more than necessary. For this reason, it is possible to suppress that the rigidity of the seat frame in which the linear member insertion hole is formed is impaired .

It is a side surface schematic diagram of the vehicle rear part carrying vehicle seat S1. It is a perspective view of vehicle seat S1. 2 is a perspective view of a cushion frame 11. FIG. FIG. 2 is a perspective view (FIG. 1) of a seat cushion flip-up mechanism 60. It is a figure when the seat back frame 21 is seen from the front side. FIG. 3 is a diagram showing an internal frame 31 of the headrest 30. It is a figure when the headrest rotation mechanism 50 is seen from the front side. It is a figure when the headrest rotation mechanism 50 is seen from the rear side. 3 is a perspective view of a headrest rotation mechanism 50. FIG. It is a perspective view (Drawing 2) of seat cushion flip-up mechanism 60. It is a figure when the seat cushion flip-up mechanism 60 is viewed from above. It is a figure when the seat back support unit 90 is seen from the side. 3 is a perspective view of a linear member 130. FIG. It is a figure when the linear member 130 is seen from the side. It is a figure when the linear member 130 is seen from upper direction. It is explanatory drawing of the linear member. FIG. 3 is an explanatory view (FIG. 1) of an engaged state between a linear member and a seat frame. FIG. 3 is an explanatory diagram (FIG. 2) of an engaged state between a linear member and a seat frame.

  Hereinafter, an embodiment according to the present invention (hereinafter, this embodiment) will be described with reference to FIGS. In addition, embodiment described below is for making an understanding of this invention easy, and does not limit this invention. The present invention can be changed and improved without departing from the gist thereof, and the present invention includes the equivalents thereof. Furthermore, the materials, shapes, and the like given in the following description are merely examples for exhibiting the effects of the present invention, and do not limit the present invention.

  1 to 18 illustrate a vehicle seat (hereinafter, vehicle seat S1) according to the present embodiment. FIG. 1 is a schematic side view of the rear portion of the vehicle on which the vehicle seat S1 is mounted. FIG. 2 is a perspective view of the vehicle seat S1. FIG. 3 is a perspective view of the cushion frame 11. FIG. 4 is a perspective view (FIG. 1) of the seat cushion flip-up mechanism 60. FIG. 5 is a view when the seatback frame 21 is viewed from the front side. FIG. 6 is a view showing the inner frame 31 of the headrest 30. 7 to 9 are diagrams showing the headrest rotating mechanism 50, FIG. 7 is a diagram when the headrest rotating mechanism 50 is viewed from the front side, and FIG. 8 is a diagram when viewed from the rear side. FIG. 9 is a perspective view. FIG. 10 is a perspective view (FIG. 2) of the seat cushion flip-up mechanism 60. FIG. 11 is a view of the seat cushion flip-up mechanism 60 as viewed from above. FIG. 12 is a view of the seat back support unit 90 as viewed from the side. FIGS. 13 to 18 are views showing the cable 130, FIG. 13 is a perspective view of the linear member 130, and FIG. 14 is a view of the linear member 130 when viewed from the side. 15 is a view when the linear member 130 is viewed from above, FIG. 16 is an explanatory view of the linear member 130, and FIG. 17 is an engaged state of the linear member 130 and the seat frame F. FIG. 18 is an explanatory diagram (FIG. 1), and FIG. 18 is an explanatory diagram (FIG. 2) of an engaged state between the linear member 130 and the seat frame F. FIG.

  In the figure, symbol FR indicates the front of the vehicle, symbol RR indicates the rear of the vehicle, and symbol UP indicates the upper side of the vehicle. In the following description, the left-right direction means the left-right direction in a state of facing the front of the vehicle, and is a direction that coincides with the width direction of the seat back frame 21 described later.

  The vehicle seat S1 is an example of a vehicle seat. As shown in FIG. 1, the vehicle seat S1 is mounted as a rear seat in a vehicle having a luggage space at the rear of a vehicle body. It is mounted on a wagon-type car.

  The configuration of the vehicle seat S1 will be described. In this embodiment, the vehicle seat S1 is divided into a right side (driver's seat side) vehicle seat S11 and a left side (passenger side) vehicle seat S12. , S12 includes a seat cushion 10, a seat back 20, and a headrest 30. Note that an armrest 40 is disposed between the seat backs 20 of the vehicle seats S11 and S12. In the left vehicle seat S12, the pedestal 20a and the seat back positioned below the armrest 40 in FIG. 20, and the overhanging portion 10 a and the seat cushion 10 disposed at a position below the pedestal portion 20 a in FIG. 2 are integrated. Although the vehicle seat S11 on the right side and the vehicle seat S12 on the left side are different in the above points, the vehicle seats S11 and S12 are common in terms of the basic configuration. Therefore, in the following description, only the configuration of the right vehicle seat S11 will be described as an example.

  The vehicle seat S1 is configured so that the luggage compartment portion 3 is formed when the vehicle seat S1 is not in use from a normal posture in which the occupant can be seated (the posture shown by a broken line in FIG. 1; hereinafter, a seated posture). It is possible to switch to the stored posture (the posture shown by a solid line in FIG. 1 and hereinafter referred to as the stored posture). That is, when the posture of the vehicle seat S1 is switched to the storage posture, the seat cushion 10 is flipped up toward the front of the vehicle. Further, in conjunction with the seat cushion 10 being flipped up, the seat back 20 is pivoted forward so that the seat cushion 10 is laid down on the vehicle body floor 2 at the position where the seat cushion 10 before the seat cushion 10 was placed. Furthermore, when the headrest 30 is rotated approximately 90 degrees forward from the state in which the headrest 30 is disposed substantially vertically above the seat back 20, and the seat back 20 falls on the vehicle body floor 2, the seat that jumps forward It is stored between the cushion 10 and the seat back 20 lying down.

  Through the series of operations described above, the vehicle seat S1 can be stored in a compact posture. And in the vehicle 1 which employ | adopts the vehicle seat S1 of the said structure as a rear seat, the luggage compartment part 3 which comprises a part of vehicle body floor 2 is formed in the back of the said vehicle seat S1, This luggage compartment part 3 is the following. The vehicle seat S1 is expanded until it can be used by the storing operation.

  As described above, the vehicle seat S1 is configured so that the posture can be switched between the sitting posture and the storage posture, and further, switching from the sitting posture to a posture in which only the headrest 30 is tilted forward, It is also possible to switch from the stowed position to a position in which only the seat back 20 is raised. Such various seat arrangements are realized by various drive mechanisms (specifically, the headrest turning mechanism 50, the seat cushion jumping mechanism 60, the seatback overturning mechanism 70, etc.) provided in the vehicle seat S1. It is. Hereinafter, a configuration for realizing the seat arrangement of the vehicle seat S1 will be described.

  In the following description, the seating positions of the seat cushion 10, the seat back 20, and the headrest 30 are the positions of the seat cushion 10, the seat back 20, and the headrest 30 when the vehicle seat S1 is in the seating position. It is. Further, the flip-up position of the seat cushion 10 is the position of the seat cushion 10 when the vehicle seat S1 is in the stowed position, and the tilted positions of the seat back 20 and the headrest 30 are respectively the vehicle seat. This is the position of the seat back 20 and the headrest 30 when the posture of S1 is the storage posture.

<< Basic configuration of vehicle seat S1 >>
In describing the configuration for realizing the seat arrangement of the vehicle seat S1, the basic configuration of the vehicle seat S1 will be described. As described above, the vehicle seat S1 includes the seat cushion 10, the seat back 20, and the headrest 30.

  The seat cushion 10 is configured by attaching a skin material to a cushion frame 11 constituting the seat frame F shown in FIG. Attachment of the skin material is performed by hooking a trim cord (not shown) sewn to the end of the skin material to the outer edge of the cushion frame 11.

Further, a seat cushion flip-up mechanism 60 shown in FIG. 4 is disposed below the seat cushion 10. The seat cushion flip-up mechanism 60 is fixed on the vehicle body floor 2 and supports the seat cushion 10 and raises the seat cushion 10 from the seating position toward the flip-up position when storing the vehicle seat S1. Is.
That is, the seat cushion 10 is configured to be fixed at a seating position on the vehicle body floor 2 via the seat cushion jumping mechanism 60, and when the seat cushion jumping mechanism 60 is operated, the seat cushion 10 jumps from the seating position toward the jumping position. Has been. In other words, the seat cushion 10 can reciprocate between the sitting position and the flip-up position.

  The seat cushion flip-up mechanism 60 includes a striker lock mechanism 100. The striker lock mechanism 100 fixes the seat cushion 10 at the seating position when the vehicle seat S1 is in the seating posture. The seat cushion flip-up mechanism 60 will be described in detail later.

  The seat back 20 is rotated so as to fall forward by the seat back fall mechanism 70, and the occupant operates the operation portion 77 provided at the upper end portion of the seat back 20, so that only the seat back 20 is moved. Can be moved forward alone. And the seat back 20 is comprised by overlapping the urethane as a cushioning material on the seat back frame 21 which comprises the seat frame F shown in FIG. 5, and covering with a skin material. The seat back frame 21 of the seat back 20 includes a pan frame 22 that forms the base of the seat back frame 21 and a pipe frame 23 that forms the outer frame of the seat back frame 21. The pan frame 22 is formed by subjecting a substantially rectangular sheet metal to processing such as bead processing for ensuring rigidity. A headrest rotation mechanism 50 and an arrangement unit 80 are attached to the front surface of the pan frame 22.

  The headrest rotating mechanism 50 is a mechanism that tilts the headrest 30 forward by rotating the pillar 33 forward, and is operated by an operation in which an occupant pulls the band member ST1 for storing operation along the vertical direction. Thus, only the headrest 30 can be laid down. Specifically, as shown in FIGS. 7 and 8, in the headrest rotating mechanism 50, a storage operation band member ST <b> 1 for receiving an operation for sliding the slide member 54 by the occupant is provided. The band member ST1 for storing operation is fastened to the one end portion 54a in the direction. When the occupant pulls the storage operation band member ST1, the slide member 54 slides, and the lock member 52 swings to the release position so as to follow the slide member 54. Then, by sliding the slide member 54, the headrest 30 (pillar 33) can finally be tilted forward as shown in FIG.

  In addition, the arrangement unit 80 is a device for interlocking the upward movement of the seat back 20 and the forward movement of the headrest 30 with the upward movement of the seat cushion 10 when the vehicle seat S1 is stored. It is.

  The pipe frame 23 is disposed along the outer edge of the pan frame 22 so as to surround the pan frame 22, and is joined to the pan frame 22 by welding. In the pipe frame 23, a portion located in the lower part in the vertical direction and a part facing the outside of the vehicle in the left and right direction are provided with a gap between the pan frame 22 in the thickness direction of the seat back 20. It is arranged. The reason why such a gap is formed is, for example, to sandwich and hold an end portion of urethane as a cushioning material superimposed on the seat back frame 21 between the pan frame 22 and the pipe frame 23.

  Further, a pillar falling restricting portion 25 made of a downward U-shaped bracket is provided in a portion of the upper end portion of the seat back frame 21 that is located on the rear side of a pillar 33 described later. The pillar fall restricting portion 25 corresponds to a restricting portion that restricts the backward rotation (falling) of the pillar 33 when the headrest 30 is located at the seating position. In addition, the pillar fall restriction | limiting part 25 is provided for every pillar 33 (namely, two pieces are provided), and is weld-stopped by the upper end part of the pipe frame 23. As shown in FIG.

  The seat back 20 having the above configuration is configured such that the pivot shaft 20b is fitted into a hole of a seat back support unit 90 (see, for example, FIG. 12) fixed to the vehicle body floor 2, so that the seat back support unit 90 Is rotatably supported. Thereby, the seat back 20 can be rotated in the front-rear direction with respect to the vehicle body floor 2, and can move between the seating position and the fall-down position. In the present embodiment, the seat back 20 lies forward in conjunction with the flip-up operation of the seat cushion 10. Furthermore, in the present embodiment, it is possible to tilt only the seat back 20 forward.

  The headrest 30 is provided above the seat back 20 (in other words, the seat back frame 21), and is filled with a foaming agent between the inverted U-shaped inner frame 31 and the skin material shown in FIG. Composed. The leg portions 31a on both sides of the inverted U-shaped inner frame 31 are hollow, and spaces for accommodating the hollow bar-shaped guides 32 are formed inside the leg portions 31a. The guide 32 is accommodated in the leg portion 31a and is configured to be able to advance and retract through an insertion hole (not shown) provided in the lower end flange portion 31b of the leg portion 31a of the internal frame 31. The skin material of the headrest 30 is provided with a through hole (not shown) so that the end portion of the guide 32 is located outside the skin material.

  In the headrest 30 configured as described above, in a state where the guide 32 is located at the most retracted position in the leg portion 31a of the inner frame 31 (a state where the guide 32 is housed in the leg portion 31a except for the lower end flange 32a). Of the skin material of the headrest 30, the portion around the through hole is sandwiched between the lower end flange portion 31 b of the leg portion 31 a of the inner frame 31 and the lower end flange 32 a of the guide 32.

  Further, in the present embodiment, the headrest 30 is supported by the pillar 33 in a state where a pair of pillars 33 (see FIG. 5) made of metal rods are inserted into the guide 32, and each pillar 33 is rotated by the headrest. The mechanism 50 is rotatably supported by the casing 51.

  The headrest 30 can be rotated by the headrest rotation mechanism 50 until the headrest 30 is tilted forward by about 90 degrees from the state of standing up above the seat back 20. In the present embodiment, the headrest 30 is pivoted so as to fall forward in conjunction with the flip-up operation of the seat cushion 10, and further, only the headrest 30 can be tilted forward alone. It is.

<< Seat cushion springing mechanism >>
When the occupant receives a storage operation to store the vehicle seat S1, the seat cushion jumping mechanism 60 jumps the seat cushion 10 toward the flip-up position as a start operation for storing the vehicle seat S1. To raise. The seat cushion flip-up mechanism 60 is covered with a resin cover (not shown), and is installed on the vehicle body floor 2 so as to be positioned below the seat cushion 10 when the seat cushion 10 is positioned at the seating position. ing.

  As shown in FIGS. 4, 10, and 11, the seat cushion flip-up mechanism 60 includes two subunits, and one subunit is an attachment unit 110 that is attached to the vehicle body floor 2, and the other The sub-unit is a movable unit 120 that is arranged on the attachment unit 110 and can perform a swing operation (rotation operation) with respect to the attachment unit 110 (in other words, the vehicle body floor 2).

  The mounting unit 110 includes a mounting plate 111 having an L-shaped appearance in a top view as a main component. Of the mounting plate 111, the first plate portion 112 extending along the front-rear direction of the vehicle 1 is fixed to the vehicle body floor 2 by bolts Bo and washers Ws fastened to the vehicle body floor 2 (see FIG. 11). Here, a long hole-like mounting hole 114 is formed at the rear end of the first plate portion 112, and the bolt Bo and the washer Ws fastened to the vehicle body floor 2 in advance are fitted into the mounting hole 114, A mounting unit 110 is disposed on the vehicle body floor 2.

  The intermediate portion 114b in the longitudinal direction of the mounting hole 114 is somewhat wider than the front end portion 114a and the rear end portion 114c. Using this configuration, when the bolt Bo and the washer Ws are fitted into the mounting hole 114, the bolt Bo and the washer Ws are first passed through the longitudinal intermediate portion 114b of the mounting hole 114, and then the bolt Bo is attached to the mounting hole. The mounting unit 110 is positioned by shifting the position of the mounting unit 110 so as to be fitted to the front end portion 114 a of the longitudinal direction 114.

  In addition, a lock portion 101 of the striker lock mechanism 100 is attached to a substantially central portion in the longitudinal direction of the first plate portion 112. The lock portion 101 includes a hook-shaped lock piece 102 and a housing 103 that accommodates the lock piece 102 in a swingable state. When the lock piece 102 is engaged with a striker 105 described later, the seat cushion 10 is fixed on the vehicle body floor 2 at the seating position. On the other hand, when the lock piece 102 swings, the striker 105 comes out of engagement with the lock piece 102, and the seat cushion 10 is released from the fixed state on the vehicle body floor 2 and is movable. It becomes.

  Further, the first plate portion 112 has a standing wall portion 112a on one side thereof, and the above-described storage operation belt-like member is located slightly ahead of the mounting position in the standing wall portion 112a. A slit 112b for passing ST2 is formed. The band member ST2 for storing operation passed through the slit 112b is disposed on the first plate portion 112 so as to intersect the first plate portion 112. In addition, one end of the cable 130 is connected to the end of the storing operation band member ST2 (the end on the inside of the vehicle 1 when viewed from the first plate portion 112). A route defining portion 112c for defining the routing route is provided at an appropriate interval on a side portion of the first plate portion 112 (a side portion opposite to the side where the standing wall portion 112a is located).

  The other end of the cable 130 is connected to the connecting piece 104 connected to the lock piece 102 described above. As a result, when the band member ST2 for storage operation is pulled, the cable 130 pulls the lock piece 102 via the connecting piece 104. As a result, the lock piece 102 swings, and the engagement between the lock piece 102 and the striker 105 occurs. The match will be released.

  On the other hand, in the mounting plate 111, the second plate portion 113 extending along the left-right direction of the vehicle 1 (the width direction of the vehicle seat S1) is a portion that forms the base of the movable unit 120, and is a central portion in the longitudinal direction. Is provided with a submarine bracket 115 for preventing a submarine phenomenon in which an occupant seated on the seat cushion 10 enters under the waist belt in the event of a collision of the vehicle 1.

  The movable unit 120 has a substantially portal structure and is bolted to the second plate portion 113 of the mounting plate 111. The movable unit 120 rotates the pair of links 121, the pair of pipe rods 122, the connecting bar 123 connecting the links 121, the mounting bracket 124 for mounting the seat cushion 10, the link 121 and the pipe rod 122. And a pair of support mechanisms 125 that are freely supported. These components are combined so as to be integrated as a unit, and when they are attached to the second plate portion 113 of the attachment plate 111, they are integrally attached as a unit.

  Each of the pair of links 121 is a long body configured by subjecting a sheet metal member to processing such as bead processing, and is located on both sides of the movable unit 120. Each link 121 is rotatably supported by fitting a rotation shaft 126A in a through hole (not shown) formed in the lower end portion thereof. Further, a connecting bar 123 that connects the links 121 is attached to the upper end of each link 121. Further, a mounting bracket 124 is attached to the upper surface of each link 121 on the outer surface thereof. The connecting bar 123 and the mounting bracket 124 are attached to the upper end portion of the link 121 by bolting in a co-tightening manner.

  Each of the pair of pipe rods 122 is arranged side by side with the link 121 in the front-rear direction, and the rotation shaft 126B is fitted in a through hole (not shown) formed in the lower end portion thereof, whereby the rotation direction of the link 121 Is supported so as to be rotatable in the same direction. A mounting bracket 124 is pinned to the upper end of each pipe rod 122. That is, in the present embodiment, the seat cushion 10 is supported by the pair of links 121 and the pair of pipe rods 122 via the mounting bracket 124. Each pipe rod 122 is rotated in the same direction as the rotation direction of the link 121 following the rotation of the link 121.

  Furthermore, the striker 105 of the striker lock mechanism 100 is attached to the lower surface of the mounting bracket 124 attached to the link 121 and the pipe rod 122 on the side facing the outside of the vehicle 1 out of the pair of links 121 and the pipe rod 122. ing. When the link 121 and the pipe rod 122 are rotated so as to fall backward as viewed from the rotation shafts 126A and 126B, the striker 105 is provided on the mounting plate 111 (more specifically, the first plate portion 112). It will reach a position where it can engage with the lock piece 102 of the lock part 101.

  Each of the pair of support mechanisms 125 supports the link 121 and the pipe rod 122 in a rotatable manner. As shown in FIGS. 4, 10, and 11, in addition to the above-described rotation shafts 126 </ b> A and 126 </ b> B, A base bracket 127, a spiral spring 128, and a damper rubber 129 are provided.

  The base bracket 127 is a substantially Z-shaped sheet metal member in a top view, forms a base of the movable unit 120, and is bolted to the second plate portion 113 of the mounting plate 111. Further, a portion of the base bracket 127 that extends along the front-rear direction of the vehicle 1 is a standing wall portion 127a, and the rotation shafts 126A and 126B are fixed to the standing wall portion 127a.

  The damper rubber 129 contacts the front end of the link 121 when the link 121 is rotated forward by the urging force of the spiral spring 128 to reach the front limit position, and absorbs an impact generated in the link 121. The damper rubber 129 is fixed to the above-described base bracket 127 so as to be located somewhat forward of the portion of the link 121 that becomes the pivot point.

  In the present embodiment, in order to prevent the damper rubber 129 from being broken due to the contact (collision) of the link 121 with the damper rubber 129, in the longitudinal direction of the link 121, the portion in the position in contact with the damper rubber 129 ( Hereinafter, the contact part 121a) is bent to round the front end of the contact part 121a.

  Of the pair of support mechanisms 125, the support mechanism 125 located outside the vehicle 1 is provided with a spiral spring 128. The spiral spring 128 is a biasing member that biases the link 121 to tilt forward. One end of the spiral spring 128 is locked to the rotating shaft 126A, and the other end is a link in a state where the link 121 is tilted to the rear side (in other words, a state before the seat cushion 10 jumps up). It is latched by the protrusion part (not shown) protruded from the side surface of 121.

  With the above configuration, when the striker 105 and the lock piece 102 are engaged, the seat cushion 10 receives the urging force of the spiral spring 128 via the link 121 (in other words, the spiral spring 128). It will be held in the seated position (against the biasing force). On the other hand, when the engagement between the striker 105 and the lock piece 102 is released, the urging force of the spiral spring 128 causes the link 121 to rotate forward so that the seat cushion 10 jumps up toward the flip-up position. Become.

  In the case shown in FIGS. 4, 10, and 11, the spiral spring 128 is provided for only one of the pair of links 121. In contrast, the spiral spring 128 may be provided.

  Furthermore, in this embodiment, the insertion hole 121b is formed in the longitudinal direction halfway position of one link 121 (link 121 located outside the vehicle 1), and the cable 130 is inserted into the insertion hole 121b. One end of is inserted. The other end of the cable 130 is connected to the arrange unit 80. Therefore, when the seat cushion 10 is flipped up, the link 121 rotates to pull the cable 130 coupled to the link 121. Finally, in the arrangement unit 80 to which the cable 130 is connected, Each part of the unit is activated by using the traction force of the cable 130.

<< Configuration of Cable 130 >>
As described above, the attachment configuration of the cable 130 as a linear member that is connected to each unit and transmits power to each other will be described below with reference to FIGS. The “linear member” is not limited to the cable 130 but includes a wire or a rod having a smaller diameter. The cable 130 is attached to the seat frame F by being inserted into a cable insertion hole Fa as a linear member insertion hole formed in the seat frame F. At this time, the cable insertion hole Fa may be provided at any location of the seat frame F. The seat frame F is not limited to the cushion frame 11 and the seat back frame 21, but indicates a highly rigid plate-like member such as the seat cushion flip-up mechanism 60.

  The cable 130 of the present invention is provided for transmitting power to each part of the vehicle seat S1, and can be installed at various locations. As an example of the installation location of the cable 130, the cable 130 is used in a portion where the seat cushion jumping mechanism 60 and the arrangement unit 80 are linked.

As shown in FIG. 13, the cable 130 is attached to a wire rod 131 that transmits power to the seat frame F, and a longitudinal end portion of the wire rod 131, and engages with a cable insertion hole Fa as a linear member insertion hole. Engaging member 132. The wire 131 and the engaging member 132 are metal members, and are firmly joined to each other.
The engaging member 132 includes an engaging member main body 133 fixed to the wire 131 and a protrusion 137 as a restricting portion that restricts the relative position between the cable insertion hole Fa and the wire 131.

  The engaging member main body 133 constituting the engaging member 132 includes a base part 134 formed along the extending direction of the wire 131, and a first bent as a bent part bent from the base part 134. Part 135 and a second bent part 136 formed by being bent from the first bent part 135. The base portion 134 and the first bent portion 135 are bent substantially vertically, and the first bent portion 135 and the second bent portion 136 are bent substantially vertically. And the base part 134 and the 2nd bending part 136 are formed so that the extension direction may become substantially parallel.

  Thus, the engagement member main body 133 is a rod-shaped member formed in a substantially S shape (stepped shape) in side view, and the thickness thereof is formed smaller than the diameter of the linear member insertion hole Fa. ing. Therefore, although the engagement member main body part 133 can be inserted into the cable insertion hole Fa, it is formed in a substantially S shape (stepped shape) when viewed from the side, so that the engagement member main body part 133 is once inserted into the cable insertion hole Fa. When it is inserted through the cable, it is not easily pulled out (see FIG. 18).

  When the engaging member 133 is inserted through the cable insertion hole Fa, the end portion of the second bent portion 136 is inserted into the cable insertion hole Fa, and the first bent portion 135 is inserted into the cable insertion hole Fa. It is fixed with. At this time, since the first bent portion 135 and the second bent portion 136 are bent so as to be substantially perpendicular to each other, the first bent portion 135 and the second bent portion 136 are configured not to easily come out from the cable insertion hole Fa.

  Then, a total of two projecting portions 137 project from the both side surfaces of the engaging member main body portion 133, one on each side of the engaging member main body portion 133. Each of the projecting portions 137 and 137 is formed in a substantially cylindrical shape, and its bottom surface is attached to the side surface of the engaging member main body portion 133.

  The protrusions 137 and 137 are formed so that the distance between the upper surfaces 137b and 137b of the protrusions 137 and 137 facing each other through the engaging member main body 133 is larger than the diameter of the cable insertion hole Fa. As shown in FIG. 17, the projecting portions 137 and 137 are in contact with the peripheral edge of the cable insertion hole Fa, and have a function as a retainer.

  The projecting portions 137 and 137 are substantially orthogonal to the extending direction of the base portion 134 (that is, the extending direction of the wire 131) and the extending direction of the first bent portion 135, that is, FIG. Are extended from the side surface of the base portion 134 along the depth direction. At this time, the projecting portions 137 and 137 are provided at positions facing each other through the base portion 134.

The projecting portions 137 and 137 are formed integrally with the engaging member main body portion 133, and are specifically manufactured by casting. After the wire 131 is cut into an appropriate length, the end thereof is inserted into a forming die having the shape of the engaging member 132, and the molten metal is poured into the forming die. Thereafter, by cooling the entire mold, the engaging member 132 and the wire 131 are integrally molded while the wire 131 is inserted into the engaging member 132.
Thus, since the edge part of the wire 131 is embed | buried under the engaging member 132, the wire 131 and the engaging member 132 are joined firmly.

  Further, when the wire 131 is embedded in the engaging member 132, the protruding portion 137 is at least a part in the length direction of the wire 131 in a state where the engaging member 132 is viewed from the side (the state shown in FIG. 14 or FIG. 16). Alternatively, they are formed so that they all overlap (FIG. 16 shows a state in which all of the protruding portions 137 overlap the wire 131). That is, the protrusion 137 is provided between the end surface 131 a of the wire 131 and the end surface 133 a from which the wire 131 is extended in the engaging member main body 133.

  As described above, the end portion of the wire 131 is disposed at a position where it overlaps with the protruding portion 137 and is further sandwiched between the two protruding portions 137 and 137, so that the wire 131 is joined by the protruding portions 137 and 137. The wire 131 and the engaging member 132 are firmly joined.

  In the projecting portion 137 formed in a columnar shape, the side surface 137 a is formed so as to overlap the extended line of the folding surface 135 a of the first folding portion 135. The bent surface 135a of the first bent portion 135 refers to the side surface of the first bent portion 135 where the base portion 134 is extended. That is, the protrusion 137 is formed such that the side surface 137a of the protrusion 137 overlaps the line X in FIG.

By providing the above configuration, the protruding portion 137 is provided in the vicinity of the boundary portion where the base portion 134 and the first bent portion 135 are bent. As a result, the rigidity of the boundary portion between the base portion 134 and the first bent portion 135 is improved.
When the engaging member 132 is inserted into the cable insertion hole Fa and attached to the seat frame F, a particularly large load is applied to the boundary portion where the base portion 134 and the first bent portion 135 are bent. It is preferable that the rigidity of the boundary portion is improved by the above configuration.

  Furthermore, the diameter of the upper surface 137b of the projecting portion 137 formed in a columnar shape is smaller than the diameter of the base portion 134 (α in FIG. 16). In other words, as shown in FIG. 16, when the engaging member 132 is viewed from the side surface, the side surface 137 a of the protruding portion 137 is formed inside the side surface (thickness) of the base portion 134.

  With the above configuration, the engagement member 132 does not increase in size, and it is not necessary to increase the size of the cable insertion hole Fa through which the engagement member 132 is inserted, so that the cable insertion hole Fa is formed. This is preferable without impairing the rigidity of the seat frame F.

  Moreover, since the protrusion part 137 is formed in the substantially cylindrical shape, the side surface 137a is circular arc shape. Thus, since the side surface 137a becomes a curved surface by making the protruding portion 137 into a columnar shape instead of a prismatic shape, when the protruding portion 137 comes into contact with the peripheral edge portion of the cable insertion hole Fa, mutual contact is made. The area becomes smaller. Therefore, it is possible to prevent the peripheral portion of the protruding portion 137 and the cable insertion hole Fa from being damaged.

  Furthermore, since the above configuration can prevent the protrusion 137 and the peripheral portion of the cable insertion hole Fa from being damaged, the configuration of the seat frame F provided with the protrusion 137 (engagement member 132) and the cable insertion hole Fa. The degree of freedom in selecting the material is improved.

  Further, since the protruding portion 137 has a side surface 137a formed in an arc shape, and the protruding portion 137 is formed in a substantially cylindrical shape, for example, the protruding portion 137 is formed in a semi-cylindrical shape. In comparison, the area of the boundary portion with the base portion 134 (engaging member main body portion 133) is ensured to be large, and as a result, the protruding portion 137 is firmly attached to the base portion 134.

  As described above, the cable 130 according to the present invention includes the engagement member 132 having the above-described configuration at the end of the wire 131, so that it can be easily attached to the cable insertion hole Fa as well as firmly. Is possible. Further, the provision of the projecting portion 137 having the above-described structure not only improves the rigidity of the engaging member 132 but also prevents the wire 131 from being excessively inserted into the cable insertion hole Fa, and allows the seat to be attached in an appropriate attached state. It can be attached to the frame F.

DESCRIPTION OF SYMBOLS 1 Vehicle, 2 Vehicle body floor, 3 Cargo compartment part 10 Seat cushion, 10a Overhang | projection part 11 Cushion frame 20 Seat back, 20a Base part, 20b Rotating shaft 21 Seat back frame 22 Pan frame,
23 Pipe frame 25 Pillar fall regulation part 30 Headrest 31 Internal frame, 31a Leg part, 31b Lower end flange part 32 Guide, 32a Lower end flange 33 Pillar 40 Armrest 50 Headrest rotation mechanism 51 Casing 52 Lock member 54 Slide member, 54a One end in longitudinal direction Part 60 seat cushion flip-up mechanism 70 seat back overturning mechanism 77 operation part 80 arrangement unit 90 seat back support unit 100 striker lock mechanism 101 lock part 102 lock piece 103 housing 104 connection piece 105 striker 110 attachment unit 111 attachment plate 112 first plate Part, 112a Standing wall part, 112b Slit, 112c Path defining part 113 Second plate part 114 Mounting hole, 114a Front end part, 114b Middle part, 114c Rear end part 115 Submarine bracket 120 Movable unit 121 Link, 121a Contact part, 121b Insert hole 122 Pipe rod 123 Connecting bar 124 Mounting bracket 125 Support mechanism 126A, 126B Rotating shaft 127 Base bracket, 127a Standing wall portion 128 Spiral spring 129 Damper rubber 130 Cable (Linear member)
131 Wire 131a End surface 132 Engagement member 133 Engagement member body part 133a End surface 134 Base part 135 First bent part (bent part)
135a Folding surface 136 Second bent part 137 Protruding part (regulating part)
137a Side 137b Top Bo Bolt, Ws Washer F Seat frame Fa Cable insertion hole (Linear member insertion hole)
S1, S11, S12 Vehicle seats ST1, ST2 Storing operation band members

Claims (5)

A linear member that is inserted and locked into a linear member insertion hole formed in a seat frame of a vehicle seat that can be switched between a sitting posture and a storage posture;
A wire that transmits power to the seat frame;
An engagement member attached to an end of the wire, and engaged with the linear member insertion hole,
The engaging member is fixed to the wire and includes an engaging member main body portion that is inserted into the linear member insertion hole, and a restriction portion that restricts a relative position between the linear member insertion hole and the wire. Ri name a,
The engaging member main body has a base formed along the extending direction of the wire, and a bent portion bent from the base.
The restricting portion along the direction perpendicular respectively extending direction of said base portion with respect to the extending direction of the bent portion, characterized Rukoto a is formed to extend from the side surface of said base portion A linear member of a vehicle seat.   2. The vehicle according to claim 1, wherein the restricting portion is a protruding portion protruding from the engaging member main body, and the protruding portion is formed integrally with the engaging member main body. A linear member of a sheet. Said engaging member is made form in a state where the end portion of the wire material is embedded,
The linear member of the vehicle seat according to claim 2, wherein at least a part of the protruding portion is formed at a position overlapping the wire in the extending direction of the wire. The protrusion is formed between an end surface of the wire and an end surface of the engagement member main body on the side where the wire is extended ,
A part of the side surface of the protruding portion is arranged at the same position as the surface on the side extended from the base portion, of the side surfaces of the bent portion in the extending direction of the base portion. The linear member of the vehicle seat according to claim 2, wherein the linear member is a vehicle seat. The protrusion is formed in a columnar shape,
The diameter of the protrusion in the engaging member main body, in any one of claims 2 to 4, characterized in that an end portion of the wire is smaller than the diameter of the end portion of the side is embedded The linear member of the vehicle seat as described.

Images