WO2004113115A1 - 車両用のシートクッションばね保持構造及びシートクッション装置 - Google Patents
車両用のシートクッションばね保持構造及びシートクッション装置 Download PDFInfo
- Publication number
- WO2004113115A1 WO2004113115A1 PCT/JP2004/008340 JP2004008340W WO2004113115A1 WO 2004113115 A1 WO2004113115 A1 WO 2004113115A1 JP 2004008340 W JP2004008340 W JP 2004008340W WO 2004113115 A1 WO2004113115 A1 WO 2004113115A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- seat cushion
- spring
- cushion spring
- seat
- guide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/70—Upholstery springs ; Upholstery
- B60N2/7094—Upholstery springs
Definitions
- the present invention relates to a seat cushion spring holding structure for a vehicle and a seat cushion device.
- the present invention is characterized by, for example, a vehicle seat cushion spring holding structure for holding an end of a seat cushion spring that naturally supports a seat cushion of a vehicle seat.
- the present invention relates to a seat cushion device having a waist restraint function for restraining and protecting an occupant in a seat in the event of a vehicle collision.
- Patent Document 1 Japanese Patent Application Laid-Open No. 5-229378
- Patent Document 2 JP-A-10-217818
- Patent Document 3 UK Patent GB2357466
- the seat cushion spring 8 is disposed at a position where the inflator bag 5 is disposed. could not. That is, the seat cushion spring 8 is disposed behind the inflator bag 5. As a result, the cushioning function of the seat cushion 7 becomes insufficient, and the occupant M has a problem that the sitting comfort in the seat deteriorates.
- the present invention has been made in view of the above circumstances, and has as its object to provide a vehicle seat cushion device that can maintain a comfortable sitting comfort in a seat for an occupant.
- the invention according to claim 1 is a vehicle seat cushion device including a seat frame having one left and right horizontal frame member, a front frame member, and a rear frame member.
- a seat-tension spring spanned between the pair of left and right horizontal frame members of the seat frame; provided at positions of the pair of left and right horizontal frame members facing each other, and holding an end of the seat cushion spring.
- the spring holding portion includes a guide to which an end of the seat cushion spring is movable, and the horizontal frame of the guide is provided.
- a vehicle seat cushion device protruding upward inward of the seat frame with at least a partial force S of a wall closer to the member.
- the entrance portion of the guide is arranged upward relative to the deepest portion of the guide.
- the spring holding portion is formed as a body with the pair of left and right lateral frame members.
- the spring holding portion is an independently molded member, and has a mounting portion for mounting to the pair of left and right horizontal frame members.
- the invention according to claim 5 is the substantially square-shaped seat frame having a pair of left and right lateral frame members to which a seat cushion of a vehicle can be attached, a front frame member, and a rear frame member; A seat cushion spring for sexually supporting the seat cushion from below; and a holding member provided on a pair of the lateral frame members arranged to oppose each other at both ends of the seat cushion spring.
- a seat cushion spring holding structure for a vehicle wherein the seat cushion spring is held by the holding member.
- the seat cushion spring is filled with a high-pressure gas below the seat cushion spring and expanded and deployed.
- An inflator bag for pushing up a seat cushion is disposed, and the holding portion is provided with the seat cushion spring and the inflation bag.
- the terms “up” and “down” mean that the near side with respect to the plane of FIG. 1 is upward, upward, upward, etc. I do.
- the side or the direction of the front frame member 21 from the center of the seat frame 12 is the front or the front
- the opposite side is the rear or the rear.
- the line is divided into right and left sides with a line connecting the centers of the front frame member 21 and the rear frame member 22 on the paper surface of FIG.
- the plane parallel to the paper surface in Fig. 1 is called the horizontal plane.
- FIG. 1 is a plan view showing a schematic configuration of a seat cushion device with a waist restraining function according to a first embodiment of the present invention.
- FIG. 2 is a sectional view showing a schematic configuration of the seat cushion device.
- FIG. 3 is a perspective view for explaining a holding structure of a seat cushion spring of the seat cushion device.
- FIG. 4 is a perspective view showing a retainer that holds the seat cushion spring.
- FIG. 5 is a front view showing the configuration of the retainer.
- FIG. 6 is a cross-sectional view showing the configuration of the retainer.
- FIG. 7 is a perspective view showing an inflator bag of the seat cushion device.
- FIG. 8 is an explanatory diagram for explaining the operation of the seat cushion device.
- FIG. 9 is an explanatory diagram for explaining the operation of the seat cushion device.
- FIG. 1 and FIG. 2 show a vehicle seat cushion device 11 having a waist restraining function according to this embodiment.
- the seat frame 12 of the vehicle includes a pair of left and right horizontal frame members 17, 17, a front frame member 21, and a rear frame member 22.
- the seat cushion body 13 is attached to a vehicle seat frame.
- the three cushion springs (seat cushion springs) 14, 14, and 14 support the seat cushion body 13 from below.
- the inflator bag 15 is disposed at the front lower portion of the seat cushion body 13 via a cushion spring 14, and can be inflated and deployed by filling with high-pressure gas.
- a substantially cylindrical inflator (not shown)
- a high-pressure gas is blown into the inside of the bag 15 to inflate and deploy the inflator bag 15.
- Retainers (holding portions) 18 and 18 for holding the seat cushion springs 14 are fixed to horizontal frame members (side members) 17 and 17 constituting the seat frame 12.
- the cushion spring 14 is detached at both ends by retainers 18, 18 fixed to horizontal frame members (side members) 17, 17. It is held so that it can be dropped. That is, each of the seat cushion springs 14 is held by the retainers 18 and 18 so that the seat cushion springs 14 can be dropped together with the deployment of the inflation tab 15.
- the seat cushion spring 14 disposed at the forefront is interposed between the inflator bag 15 and the seat cushion 13. As shown in FIG.
- the seat cushion spring 14 is formed by processing a linear member made of metal having a predetermined diameter into, for example, a continuous substantially sinusoidal shape (continuous S-shape), and when no load is applied, The upper or lower end of the member is formed so as to be entirely flat.
- the cushion spring 14 is formed so as to be line-symmetric with respect to a symmetry axis along the width direction as a whole.
- Both ends of the seat cushion spring 14 are locked by retainers 18, 18 fixed to the horizontal frame members 17, 17, and are disposed on the lower surface side of the seat cushion body 13.
- the seat cushion spring 14 is bent so that the seat cushion body 13 is deformed due to the weight of the occupant and a load (external force) is applied from above, so that the entire body is convex downward. As a result, a restoring force acts on the seat cushion spring 14 so as to push the seat cushion 13 back.
- the retainer 18 includes a guide 18b as illustrated in Figs. 2 to 6.
- the retainer 18 is made of, for example, a metal member having a substantially mountain-shaped cross section.
- the retainer 18 is formed by, for example, a mounting surface 18a for mounting on the vertical wall surface of the horizontal frame member 17, and a notch process or a press molding.
- a guide 18b whose depth direction crosses the mounting surface 18a obliquely from the surface on the opposite side of the mounting surface 18a to a predetermined depth.
- the distal end portion of the seat cushion spring 14 is held at the deepest portion 18c of the guide 18b.
- the guide 18b functions as a gap (Gap) or a groove for releasing the force holding the seat cushion spring 14.
- the seat cushion spring 14 also receives an external force as well as a downward force. Then, the end of the seat cushion spring 14 moves upward along the upper wall surface 18d of the guide 18b from the deepest portion 18c of the guide 18b. Then, the seat cushion spring 14 is released from the locked state.
- the guide 18b is formed such that the entrance 18e is arranged upward relative to the deepest portion 18c in a state where the retainer 18 is attached to the horizontal frame member 17. ing.
- the width of the guide 18b is set substantially equal to the diameter of the seat cushion spring 14.
- the end of the seat cushion spring 14 is locked by a guide 18b, and is fitted and fixed to a deepest portion 18c in the guide 18b.
- the depth of the guide 18b and the angle of the guide 18b in the depth direction with respect to the mounting surface 18a received an external force (push-up force) of a predetermined value or more in the process of expanding and deploying the seat cushion spring 14 force S inflator bag 15.
- the seat cushion spring 14 is optimally set so that the end of the seat cushion spring 14 is pulled out from the back of the guide 18b, moves on the wall surface, and the seat cushion spring 14 is released from the locked state and falls off from the retainer. .
- the retainer 18 has a mounting surface 18a joined to a side surface inside the horizontal frame member 17 (center side of the seat frame 12), and is fixed to the side frame member 17 by, for example, welding.
- the inflator bag 15 has, for example, a hermetic structure that expands and expands by filling with a high-pressure gas, as shown in Fig. 7 (a), and is made of, for example, a molded product of a metal sheet or a resin sheet. It is composed of a square box-shaped bag body 15a and a bottom plate 15c for closing a bottom surface of the bag body 15a facing the top plate 15b.
- the bottom plate 15c is formed integrally with the bag body 15a, or is joined to the bag body 15a by caulking or welding.
- the expanded inflator bag 15 greatly expands in its thickness direction as shown in FIG. 7 (b).
- the inflator bag 15 remains folded as shown in FIG. 7 (a), and does not apply a pressing force to the seat cushion spring 14 as shown in FIG. 8 (a). . Therefore, as shown in FIG. 9A, both ends of the seat cushion spring 14 are held in a state where they are arranged at the deepest portions of the guides 18a of the retainers 18, 18.
- the seat cushion spring 14 is supported at the deepest portion of the guide 18a, and deflects so that the whole becomes convex downward. .
- the seat cushion spring 14 generates a restoring force that pushes the seat cushion 13 back.
- the inflator bag 15 When the inflator is operated at the time of sudden deceleration due to a forward collision of the vehicle, high-pressure gas is blown from the inflator into the inflator bag 15.
- the inflator bag 15 is inflated and deployed as shown in FIG. 8 (b) when the jetted high-pressure gas is filled therein, and pushes up the seat cushion spring 14 and the seat cushion body 13.
- both ends of the seat cushion spring 14 are separated from the deepest portion of the guide 18a, and obliquely upward along the wall surface of the guide 18a.
- the inflation bag 15 is further expanded and deployed to push up the seat cushion spring 14 and the seat cushion body 13 as shown in FIG. 8 (c).
- both ends of the seat cushion spring 14 protrude from the entrance of the guide 18a, are released from the locking state, and fall off.
- the inflator bag 15 lifts the seat cushion 13 and gives a restraining force to the occupant.
- FIGS. 11 and 13 show a second embodiment of the present invention.
- FIG. 11 is a perspective view showing a holding portion (retainer) of the seat cushion spring of the seat cushion device having a waist restraining function.
- FIG. 12 and FIG. 13 are cross-sectional views showing the holding portion (retainer).
- a retainer made of a synthetic resin is attached to the horizontal frame member using a fixing portion formed on the retainer body. In the following description, the description of the same parts as those in the first embodiment will be omitted.
- the retainer (holding portion) 18A of this example uses a synthetic resin, and has a right-angled corner in a part of the outer shape. This retainer can be formed by injection molding or the like.
- the guide 18b is formed obliquely upward.
- the seat cushion spring 14 has a deepest portion 18c for locking the distal end portion, a fixing portion 18g provided on the bottom surface, and a positioning pin 18i.
- the fixing portion 18g includes a shaft portion 18s having a diameter substantially equal to the diameter of the insertion hole 17m formed in the horizontal frame member 17A, and a deformable tapered taper portion 18t formed at the tip side of the shaft portion 18s. Have.
- a step is provided at the joint between the shaft portion 18s and the tapered portion 18t.
- the retainer 18A is a horizontal frame member 1
- the fixing portion 18g and the positioning pin 18i are inserted into the insertion holes 17m and 17 ⁇ formed in the horizontal frame member 17A, respectively, and fixed so that the entrance of the guide 18b faces the inside of the seat frame 12 in 7A. I have.
- the retainer may be attached to the seat frame by welding or the like, or may be formed in advance integrally with the seat frame to reduce the cost.
- cushion springs other than the cushion spring interposed between the inflator bag and the seat cushion need not necessarily be held so that they can be dropped off.
- the number of the attachment springs to be arranged is not limited to three, but may be two or four or more.
- the tip of the cushion spring 14 may be slanted downward. It is also possible to bend toward, and insert and retain it in the hole 18f formed in the retainer 18.
- the shape of the seat cushion spring 14 is not limited to a substantially sinusoidal wave shape, but may be a rectangular wave shape or a triangular wave shape. Not only the end of the seat cushion spring is held by a single retainer, but also a ladder-like end may be held by a plurality of retainers.
- the seat cushion spring may be formed so that the surface including the linear member is not limited to a flat surface as a whole but becomes a curved surface even when no load is applied.
- the cushion spring may be formed in a state where no external force is applied, for example, so that the whole is convex upward.
- the inflator may be provided inside the inflator bag.
- the seat cushion spring 14 is detachably held by a retainer 18.
- the inflator bag 15 can be arranged below the seat cushion 13. Also, the inflator The bag 15 can be expanded and deployed without being disturbed by the seat cushion spring 14. Therefore, the waist restraint function can be reliably performed, and the occupant can maintain a comfortable sitting comfort in the seat.
- the seat cushion spring 14 can be easily removed, it can be easily replaced, for example, in the case of repair.
- the guide 18b of the retainer 18 is formed in a direction in which the depth direction crosses the mounting surface 18a obliquely.
- the entrance of the guide 18b is located relatively higher than the deepest part. For this reason, when the inflator is not operated, the seat cushion spring 14 does not easily come off.
- FIG. 1 is a plan view showing a schematic configuration of a seat cushion device with a waist restraining function according to a first embodiment of the present invention.
- FIG. 2 is a sectional view showing a schematic configuration of the seat cushion device.
- FIG. 3 is a perspective view for explaining a holding structure of a seat cushion spring of the seat cushion device.
- FIG. 4 is a perspective view showing a retainer that holds the seat cushion spring.
- FIG. 5 is a front view showing a configuration of the retainer.
- FIG. 6 is a cross-sectional view showing a configuration of the retainer.
- FIG. 7 is a perspective view showing an inflator bag of the seat cushion device.
- FIG. 8 is an explanatory diagram for explaining an operation of the seat cushion device.
- FIG. 9 is an explanatory diagram for explaining an operation of the seat cushion device.
- FIG. 10 is an explanatory diagram illustrating another configuration example of the retainer.
- FIG. 11 is a perspective view showing a holding structure of a seat cushion spring of a seat cushion device with a waist restraint function according to a second embodiment of the present invention.
- FIG. 12 is a sectional view showing a configuration of the retainer.
- FIG. 13 is a sectional view showing a configuration of the retainer.
- FIG. 14 is an explanatory diagram for explaining a conventional technique.
- FIG. 15 is an explanatory diagram for explaining a conventional technique. Explanation of reference numerals
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
- Air Bags (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005507212A JP4130206B2 (ja) | 2003-06-24 | 2004-06-15 | 車両用のシートクッションばね保持構造及びシートクッション装置 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003180353 | 2003-06-24 | ||
| JP2003-180353 | 2003-06-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2004113115A1 true WO2004113115A1 (ja) | 2004-12-29 |
Family
ID=33535159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2004/008340 Ceased WO2004113115A1 (ja) | 2003-06-24 | 2004-06-15 | 車両用のシートクッションばね保持構造及びシートクッション装置 |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4130206B2 (ja) |
| WO (1) | WO2004113115A1 (ja) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007049541A1 (ja) * | 2005-10-28 | 2007-05-03 | Takata Corporation | 乗員拘束装置 |
| WO2007055106A1 (ja) * | 2005-11-09 | 2007-05-18 | Takata Corporation | 乗員拘束装置 |
| JP2018090010A (ja) * | 2016-11-30 | 2018-06-14 | ダイハツ工業株式会社 | 車両用シートのクッションバネ係止構造 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3017794U (ja) * | 1994-11-02 | 1995-11-07 | 義教 鈴木 | 分別ごみ収納容器を有する流し台 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05229378A (ja) * | 1992-02-20 | 1993-09-07 | Toyota Motor Corp | 車両用シート |
| JPH10217818A (ja) * | 1997-01-31 | 1998-08-18 | Ikeda Bussan Co Ltd | 車両用シート |
| JP2001047918A (ja) * | 1999-08-06 | 2001-02-20 | Honda Motor Co Ltd | 車両用シート |
-
2004
- 2004-06-15 JP JP2005507212A patent/JP4130206B2/ja not_active Expired - Fee Related
- 2004-06-15 WO PCT/JP2004/008340 patent/WO2004113115A1/ja not_active Ceased
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05229378A (ja) * | 1992-02-20 | 1993-09-07 | Toyota Motor Corp | 車両用シート |
| JPH10217818A (ja) * | 1997-01-31 | 1998-08-18 | Ikeda Bussan Co Ltd | 車両用シート |
| JP2001047918A (ja) * | 1999-08-06 | 2001-02-20 | Honda Motor Co Ltd | 車両用シート |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007049541A1 (ja) * | 2005-10-28 | 2007-05-03 | Takata Corporation | 乗員拘束装置 |
| US7784866B2 (en) | 2005-10-28 | 2010-08-31 | Takata Corporation | Occupant restraint device |
| WO2007055106A1 (ja) * | 2005-11-09 | 2007-05-18 | Takata Corporation | 乗員拘束装置 |
| JP2018090010A (ja) * | 2016-11-30 | 2018-06-14 | ダイハツ工業株式会社 | 車両用シートのクッションバネ係止構造 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4130206B2 (ja) | 2008-08-06 |
| JPWO2004113115A1 (ja) | 2006-07-20 |
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