JP2015058014A - Headrest assembly structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily check an assembly state of a headrest.SOLUTION: A headrest assembly structure includes: a headrest frame 50 constituting a headrest body which is provided as a separate body from a seat back and is integrally assembled on an upper part of the seat back; and a supporting member 10 having a side of one end 10a fixed to a seat frame 40 constituting the seat back and a side of the other end 10b where the headrest frame 50 is assembled for connecting the headrest frame 50 and the seat frame 40. Then, the headrest frame 50 has an engaging part 51 engaging the supporting member 10, and the supporting member 10 has a checking part 11 which enables the visual observation of the engagement state with the engaging part 51. Consequently, since checking work of the engagement state of the supporting member 10 and the engaging part 51 is easily performed only by visually observing the checking part 11, the assembly state of the headrest relative to the seat back is easily checked.

Description

  The present invention relates to an assembly structure of a headrest disposed on an upper portion of a seat back.

  Conventionally, in vehicle seats mounted on vehicles such as railways, automobiles, ships, and aircraft, it is known that a headrest provided separately as an upper part of a seat back is integrally assembled (for example, Patent Document 1). This headrest is provided for improving comfort when seated and for improving safety by supporting the head during a collision.

  In the headrest disclosed in Patent Document 1, a headrest body having a cored bar is connected to a headrest frame (headrest pillar) and disposed on an upper portion of a seat back. The headrest frame is composed of two cylindrical rods, and is inserted into a hollow bracket fixed to the seat frame on the seat back side and assembled. At this time, a guide lock having a head portion for fixing the headrest frame and a body portion having a hollow cylindrical shape so that the headrest frame can be inserted is mounted in the bracket. That is, the headrest is fixed to the frame on the seat back side when the frame is inserted into the bracket via the guide lock.

  Accordingly, the headrest can be fixed at a predetermined position even after the guide lock for holding the headrest frame of the headrest is assembled to the seatback and the cushion material or the skin material is attached to the seatback.

JP 2010-136770 A

  However, when the bracket for inserting the headrest frame via the guide lock is a hollow member (that is, a pipe member) as in the headrest of Patent Document 1, the pipe member has openings other than the openings at both ends. There are no exposed parts. For this reason, it was difficult for the operator to confirm the assembled state of the headrest during the assembly work of the headrest. For example, if a foreign object is mixed in the bracket, there is a risk that the operator may insert the guide lock into the bracket and assemble the headrest frame without being aware of the foreign object. There was a case where a malfunction occurred.

  Therefore, the present invention has been made in view of the above-described circumstances, and an object thereof is to realize a headrest assembly structure in which the headrest assembly state can be easily confirmed.

In order to solve the above problems, the invention according to claim 1 is an assembly structure of a headrest that is provided separately from the seat back and is integrally assembled to the upper portion of the seat back.
A headrest frame constituting the headrest body;
One end side is fixed to a seat frame constituting the seat back, and the headrest frame is assembled to the other end side, and includes a support member that connects the headrest frame and the seat frame,
The headrest frame has an engaging portion that engages with the support member;
The support member is provided with a confirmation portion that can visually check the engagement state with the engagement portion.

The invention according to claim 2 is the assembly structure of the headrest according to claim 1,
The support member is a planar U-shaped column member that opens outward in the seat frame width direction,
The engaging portion is engaged along the opening, and the confirmation portion is disposed along the opening.

The invention according to claim 3 is the assembly structure of the headrest according to claim 1 or 2,
The support member is fixed along the outer periphery of a left and right spanning member disposed so that the one end side is bridged between the left and right upper portions of the seat frame.

The invention according to claim 4 is the assembly structure of the headrest according to any one of claims 1 to 3,
The support members are provided as a pair so as to be positioned on both right and left ends of the headrest frame,
The engaging portions are respectively disposed at positions corresponding to the pair of support members on the left and right ends of the headrest frame.

The invention according to claim 5 is the assembly structure of the headrest according to any one of claims 1 to 4,
A detachment suppressing member that is installed between the headrest frame and the seat frame, and that suppresses the headrest frame from being detached from the state assembled to the seat frame via the support member;
The detachment suppressing member is arranged behind the front end surface of the support member.

The invention according to claim 6 is the assembly structure of the headrest according to any one of claims 1 to 5,
The support member includes a guide portion for guiding the engagement portion when the headrest frame is assembled to the end portion on the other end side.

The invention according to claim 7 is the assembly structure of the headrest according to any one of claims 2 to 6,
A plurality of the seat backs are connected in the width direction, and a grip portion is installed between the headrests assembled to the upper parts of the seat backs,
The gripping part is supported by a connecting member disposed in the opening of the support member facing between the adjacent headrests.

  According to the first aspect of the present invention, in the assembly structure of the headrest that is provided separately from the seatback and is integrally assembled to the upper portion of the seatback, the headrest frame constituting the headrest body and one end side of the seatrest are seats While being fixed to the seat frame which comprises a back | bag, a headrest frame was assembled | attached to the other end side, and the support member which connects the said headrest frame and a seat frame was provided. At this time, the headrest frame has an engagement portion that engages with the support member, and the support member is provided with a confirmation portion that can visually check the engagement state with the engagement portion. Thereby, since the confirmation operation | work of the engagement state of a support member and an engaging part can be simply performed only by visually observing a confirmation part, the assembly | attachment state of the headrest with respect to a seat back can be confirmed easily.

  According to the second aspect of the present invention, the support member is formed of a planar U-shaped column member that opens outward in the seat frame width direction, and the engaging portion is engaged along the opening. The confirmation part is arranged along the opening. Therefore, the engagement state of the engagement portion with the support member, in other words, the assembly state of the headrest with respect to the seat back, can be easily confirmed only by visually observing the opening exposed toward the outside in the width direction of the seat frame.

  According to the third aspect of the present invention, the support member is fixed along the outer periphery of the left and right spanning member that is disposed so that one end side is bridged between the left and right upper portions of the seat frame. That is, since the support member is fixed so that one end side is surrounded from the front surface side to the rear surface side of the left and right bridge members, the support member can be firmly assembled to the seat frame. In other words, the assembly rigidity of the support member with respect to the seat frame can be ensured.

  According to the fourth aspect of the present invention, the support members are provided in a pair so as to be positioned on the left and right ends of the headrest frame, and the engaging portions are provided on the pair of support members on the left and right ends of the headrest frame. They are arranged at corresponding positions. Therefore, since the headrest frame can be assembled to the seat frame on both the left and right sides, the headrest frame can be supported stably, for example, compared to the case where only the central portion is supported, and the support rigidity is remarkably improved. be able to.

  According to the fifth aspect of the present invention, the detachment suppressing member that is installed between the headrest frame and the seat frame and further suppresses the headrest frame from being detached from the state assembled to the seat frame via the support member. I prepared. Thereby, since it can suppress reliably that a headrest frame remove | deviates from a seat frame, the malfunction that a headrest slip | deviates or remove | deviates when a seated person uses can be prevented beforehand. In addition, since the separation restraining member is arranged behind the front end surface of the support member, the seating person can sit more comfortably without giving a sense of incongruity due to a foreign object (detachment restraining member) protruding from the headrest. Comfort can be secured.

  According to the sixth aspect of the invention, the support member includes the guide portion for guiding the engaging portion when the headrest frame is assembled to the end portion on the other end side. Assembling can be facilitated, and the assembling work efficiency can be remarkably improved.

  According to the seventh aspect of the present invention, a plurality of seat backs are connected in the width direction, and gripping portions are constructed between the headrests assembled to the upper portions of the seatbacks. It was made to be supported by the connection member arrange | positioned in the opening of the supporting member which opposes between. That is, when a grip portion is provided between the headrests when a seat for a plurality of persons is formed, the grip portion is supported by the connecting member disposed in the opening described above. For this reason, by making it possible to accommodate the connecting member that supports the gripping portion in the opening, it is possible to suppress the space for placing the gripping portion from spreading in the width direction, that is, to dispose the gripping portion. The installation space can be made compact, and the gripping part can be installed compactly.

1 is an overall perspective view showing a vehicle seat to which a headrest assembly structure according to an embodiment of the present invention is applied. FIG. 2 is a perspective view partially showing a state where the headrest frame and the seat frame are assembled in the vehicle seat of FIG. 1. It is a side view which shows the assembly | attachment state of the headrest frame and seat frame of FIG. It is sectional drawing which shows the assembly | attachment state of the headrest frame and seat frame of FIG. 3 seeing from a side surface.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.
In the present embodiment, the case where the seat using the headrest assembly structure according to the present invention is applied to a vehicle seat mounted on a railway vehicle such as a train will be described.

  As shown in FIG. 1, a seat 1 in this embodiment is a vehicle seat mounted on a railway vehicle, and a seat cushion 3 and a seat back 4 are arranged in a width direction with respect to a frame 2 assembled to the vehicle. It is a three-seat seat that is connected to each other. Headrests 5 provided separately from each other are integrally assembled on top of these seat backs. Further, a handrail 5a serving as a grip portion that communicates the headrests 5 is provided between the headrests 5. That is, when configuring a seat 1 of a plurality of persons (in this case, three persons) in which a plurality of seat cushions 3 and seat backs 4 are connected in the width direction, each headrest 5 is assembled to the upper part of the seat back 4. Handrails 5a ... are provided between them.

  An armrest 6 is provided on one side of the seat cushion 3 (in this case, the passage side). In this case, the other side of the seat cushion 3 is adjacent to a side wall (not shown) of the vehicle. Further, the seat back 4 is formed with a suspending line 7 that is divided into upper and lower portions in the upper portion on the headrest 5 side, and is bent in the front-rear direction with the suspending line 7 as a boundary.

Here, a three-seat vehicle seat will be described as an example of a vehicle seat to which the headrest assembly structure of the present invention is applied, but the present invention is not limited to this.
Although not shown here, the seat cushion 3 and the seat back 4 have a general structure. For example, the surface of a cushion pad made of a foamable resin material is covered with a seat cover that is a skin material. It is constituted by. At this time, the seat cover is formed by stitching a plurality of cover members, and these stitched portions are positioned at a portion where the cushion pad is divided vertically (that is, the suspension line 7). Yes.

  Here, as shown in FIGS. 2 and 3, the headrest 5 includes a headrest frame 50 constituting a headrest body. Specifically, the headrest frame 50 is formed by bending two flat plate members, and combining them to form a substantially U-shaped longitudinal section. A cushion pad made of, for example, a foamable resin material is attached to the headrest frame 50, and the surface thereof is covered with a headrest cover.

  A support member 10 that connects the headrest frame 50 and the seat frame 40 is provided between the seat frame 40 constituting the seat back 4 and the headrest frame 50. The support member 10 is fixed to the seat frame 40 at one end 10a side, and the headrest frame 50 is assembled to the other end 10b side.

  At this time, the headrest frame 50 has an engaging portion 51 that engages with the support member 10, and the support member 10 is provided with a confirmation portion 11 that can visually check the engaged state with the engaging portion 51. It has been. Thereby, the confirmation operation | work of the engagement state of the supporting member 10 and the engaging part 51 can be easily performed only by visually checking the confirmation part 11. FIG.

  The support member 10 is a planar U-shaped column member that opens outward in the width direction of the seat frame 40, and the engaging portion 51 is engaged along the opening and along the opening. The confirmation unit 11 is arranged. For this reason, the engagement state of the engagement portion 51 with respect to the support member 10, in other words, the assembly state of the headrest 5 with respect to the seat back 4, only by visually observing the opening exposed outward in the width direction of the seat frame 40. Can be easily confirmed.

  Further, the support member 10 is fixed along the outer periphery of the left and right spanning member 41 arranged at one end side so as to span between the left and right upper portions of the seat frame 40. That is, since the support member 10 is fixed so that one end side is surrounded from the front surface side to the rear surface side of the left and right bridge member 41, the support member 10 can be firmly assembled to the seat frame 40. In other words, the assembly rigidity of the support member 10 with respect to the seat frame 40 can be secured.

  In addition, the support member 10 is provided in a pair so as to be positioned on both the left and right ends of the headrest frame 50, and the engaging portion 51 corresponds to the pair of support members 10 and 10 on the left and right ends of the headrest frame 50. It is arranged at each position. Therefore, since the headrest frame 50 can be assembled to the seat frame 40 on both the left and right sides thereof, the headrest frame 50 can be stably supported as compared with the case of supporting only the central portion, for example. .

  Further, the support member 10 is formed in an inverted C shape in which the end on the other end 10b side widens the opening outward in the longitudinal direction (that is, from the one end 10a side toward the other end 10b side). The inverted C-shaped portion functions as a guide portion 12 for guiding the engaging portion 51 when the headrest frame 50 is assembled to the support member 10. That is, the end portion of the other end 10b of the support member 10 includes a guide portion 12 formed in an inverted C shape. Thereby, the assembly | attachment of the headrest frame 50 with respect to the supporting member 10 can be facilitated, and assembly | attachment work efficiency can be improved significantly.

  In addition, a detachment suppressing member 20 is provided between the headrest frame 50 and the seat frame 40 so as to prevent the headrest frame 50 from detaching from a state where the headrest frame 50 is assembled to the seat frame via the support member 10. As shown in FIGS. 2 and 4, the detachment suppressing member 20 is substantially at the center in the width direction (left-right direction) of the headrest frame 50 and is located slightly below the center in the height direction (up-down direction). The headrest side engaging portion 21 fixed to the engaging hole 50a by the fixing member 52 and the substantially center in the width direction of the seat frame 40 (specifically, the left and right bridge member 41), and the front end of the support member 10 It comprises a seat side engaging portion 22 fixed by welding or the like behind the surface.

  Specifically, the headrest side engaging portion 21 has a substantially J-shaped hook shape formed by bending a long flat plate member, and the seat side engaging portion 22 is formed by bending a rod-like member. It has a generally U-shaped shape. Further, the headrest side engaging portion 21 and the seat side engaging portion 22 are engaged with each other, so that the headrest frame 50 can be reliably prevented from being detached from the seat frame 40.

  Accordingly, it is possible to prevent a problem that the headrest 5 is displaced or detached when the seated person uses the vehicle seat 1. In addition, since the detachment suppressing member 20 is arranged behind the front end surface of the support member 10, it does not give a sense of incongruity due to a foreign object (detachment suppressing member 20) protruding from the headrest 5 to the seated person. It is possible to secure a more comfortable sitting comfort.

  In the case of this embodiment, the handrail 5a installed between the headrests 5 ... is supported by the connecting member 30 disposed in the opening of the support members 10, 10 facing each other between the adjacent headrests 5,5. ing. In this case, each handrail 5a ... is made of a cylindrical member, and both ends thereof are supported by being fitted into a connecting member 30 made of a cylindrical member having a diameter smaller than that of the handrail 5a arranged in the above-described opening. . For this reason, by making it possible to accommodate the connecting member 30 that supports the handrail 5a in the opening, it is possible to suppress the space for arranging the handrail 5a from spreading in the width direction, that is, arranging the handrail 5a. The installation space for installation can be made compact, and the handrail 5a can be installed compactly.

  As described above, according to the present embodiment, in the assembly structure of the headrest 5 that is provided separately from the seatback 4 and is integrally assembled to the upper portion of the seatback 4, the headrest constituting the headrest body The frame 50 and one end 10a side are fixed to the seat frame 40 constituting the seat back 4, and the headrest frame 50 is assembled to the other end 10b side, and the support member 10 connecting the headrest frame 50 and the seat frame 40; I was prepared to. At this time, the headrest frame 50 has an engagement portion 51 that engages with the support member 10, and the support member 10 is provided with a confirmation portion 11 that can visually check the engagement state with the engagement portion 51. . Thereby, since the confirmation operation | work of the engagement state of the supporting member 10 and the engaging part 51 can be easily performed only by visually checking the confirmation part 11, the assembly | attachment state of the headrest 5 with respect to the seat back 4 can be confirmed easily.

  At this time, the support member 10 is a planar U-shaped column member that opens outward in the width direction of the seat frame 40, and the engaging portion 51 is engaged along the opening, and the opening is The confirmation part 11 is arrange | positioned along. Therefore, just by visually observing the opening exposed toward the outside in the width direction of the seat frame 40, the engagement state of the engagement portion 51 with respect to the support member 10, in other words, the assembly state of the headrest 5 with respect to the seat back 4 is determined. Easy to confirm.

  In addition, the support member 10 is fixed along the outer periphery of the left and right spanning member 41 that is disposed so that the one end 10 a side spans between the left and right upper portions of the seat frame 40. That is, since the support member 10 is fixed so that the one end 10a side is surrounded from the front side to the rear side of the left and right bridge member 41, the support member 10 can be firmly assembled to the seat frame 40. In other words, the assembly rigidity of the support member 10 with respect to the seat frame 10 can be ensured.

  Further, the support member 10 is provided in a pair so as to be positioned on both the left and right ends of the headrest frame 50, and the engaging portion 51 corresponds to the pair of support members 10 and 10 on the left and right ends of the headrest frame 50. It is arranged at each position. Therefore, since the headrest frame 50 can be assembled to the seat frame 40 on both the left and right sides, the headrest frame 50 can be stably supported, for example, compared to the case where only the center portion is supported, and the support rigidity is remarkably improved. Can be improved.

  In addition, a detachment restraining member 20 that is installed between the headrest frame 50 and the seat frame 40 and suppresses the headrest frame 50 from being detached from the state assembled to the seat frame 40 via the support member 10 is further provided. I made it. Thereby, since it can suppress reliably that the assembled headrest frame 50 remove | deviates from the seat frame 40, the malfunction that the seatrest 5 shifts | deviates or remove | deviates can be prevented beforehand. In addition, since the detachment suppressing member 20 is arranged behind the front end surface of the support member 10, it does not give a sense of incongruity due to a foreign object (detachment suppressing member 20) protruding from the headrest 5 to the seated person. A more comfortable sitting comfort can be secured.

  In addition, since the support member 10 includes the guide portion 12 for guiding the engaging portion 51 when the headrest frame 50 is assembled to the end portion on the other end 10b side, the assembly of the headrest frame 50 to the support member 10 is performed. It can be simplified, and the assembly work efficiency can be remarkably improved.

  Further, a plurality of seat backs 4 are connected in the width direction, and handrails 5a are installed between headrests 5 ... which are respectively assembled to the upper portions of the seatbacks 4, and the handrails 5a are arranged between the adjacent headrests 5 and 5. It was made to be supported by the connection member 30 arrange | positioned in opening of the supporting members 10 and 10 which oppose. That is, when the handrail 5a is provided between the headrests 5 ... when the seat 1 having a plurality of persons (here, three persons) is configured, the connecting member disposed in the opening described above. 30. Therefore, by allowing the connecting member 30 that supports the handrail 5a to be accommodated in the opening, it is possible to suppress the space for placing the handrail 5a from spreading in the width direction, that is, the handrail 5a is disposed. It is possible to reduce the installation space when performing the operation, and it is possible to install the Tesuchi 5a in a compact manner.

  The present invention is not limited to the above-described embodiments, and various improvements and design changes can be made as appropriate without departing from the spirit of the present invention.

  For example, in the above-described embodiment, the present invention is applied to a vehicle seat 1 mounted on a railway (train, etc.) vehicle as a seat in which a headrest 5 provided separately on the seat back 4 is integrally assembled. However, this is only an example and the present invention is not limited to this. In short, as long as the headrest 5 is integrally assembled on the upper part of the seat back 4, a vehicle seat mounted on various vehicles such as an automobile, a ship, and an aircraft can be widely applied.

DESCRIPTION OF SYMBOLS 1 ... Vehicle seat 2 ... Frame 3 ... Seat cushion 4 ... Seat back 40 ... Seat frame 41 ... Left and right bridge member 5 ... Headrest 50 ... Headrest frame 50a ... Engagement hole 51 ... Engagement part 52 ... Fixing member 7 ... Suspension Insertion line 10 ... support member 10a ... one end 10b ... other end 11 ... confirmation part 12 ... guide part 20 ... detachment restraining member 21 ... headrest side engagement part 22 ... seat side engagement part 30 ... connection member

Claims (7)

A headrest assembly structure that is provided separately from the seatback and is integrally assembled to the upper portion of the seatback,
A headrest frame constituting the headrest body;
One end side is fixed to a seat frame constituting the seat back, and the headrest frame is assembled to the other end side, and includes a support member that connects the headrest frame and the seat frame,
The headrest frame has an engaging portion that engages with the support member;
An assembly structure of a headrest, wherein the support member is provided with a confirmation portion that allows visual confirmation of an engagement state with the engagement portion. The support member is a planar U-shaped column member that opens outward in the seat frame width direction,
The headrest assembly structure according to claim 1, wherein the engaging portion is engaged along the opening, and the confirmation portion is disposed along the opening.   3. The headrest according to claim 1, wherein the support member is fixed along an outer periphery of a left and right spanning member that is arranged so that the one end side is bridged between the left and right upper portions of the seat frame. Assembly structure. The support members are provided as a pair so as to be positioned on both right and left ends of the headrest frame,
The said engaging part is each arrange | positioned in the position corresponding to a pair of said supporting member in the left-right both ends of the said headrest frame, The headrest as described in any one of Claims 1-3 characterized by the above-mentioned. Assembly structure. A detachment suppressing member that is installed between the headrest frame and the seat frame, and that suppresses the headrest frame from being detached from the state assembled to the seat frame via the support member;
The headrest assembly structure according to any one of claims 1 to 4, wherein the detachment suppressing member is disposed rearward of a front end surface of the support member.   The said support member is provided with the guide part for guiding the said engaging part, when assembling | attaching the said headrest frame to the edge part of the said other end side. The assembly structure of the headrest as described in 2. A plurality of the seat backs are connected in the width direction, and a grip portion is installed between the headrests assembled to the upper parts of the seat backs,
The said grip part is supported by the connection member arrange | positioned in the said opening of the said supporting member which opposes between the said adjacent headrests, The headrest as described in any one of Claims 2-6 characterized by the above-mentioned. Assembly structure.

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