US5328248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seat frame for a vehicle
Assignee: Toyota Motor Corp
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Filing: 1992-07-21
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Granted: 1994-07-12
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Expires: 2012-07-21
Abstract
Abstract A front-lower arm portion is disposed in the forward direction of a vehicle, while a rear-lower arm portion is disposed in the rearward direction of the vehicle. The rear-lower arm portion is formed of a material having greater tensile strength and compressive strength than that of the front-lower arm portion. A rear end portion of the front-lower arm portion is overlaid with a front end portion of the rear-lower arm portion, thereby securing both end portions together by means of a rivet.
Inventors
- 👤 Kunio Nishiyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:15
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/02; B60N2/04; B60N2/06; B60N2/08; B60N2/0831; B60N2/0837; B60N2/0843; B60N2/07; B60N2/0702; B60N2/071; B60N2/0715; B60N2/072; B60N2/0812; B60N2/0825; B60N2/68; B60N2/70; B60N2/7094; B60N2/72
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
185 words
A seat frame for a vehicle comprising: a front-lower arm; a rear-lower arm, which is formed of a material having greater tensile strength and compressive strength than said front-lower arm, said rear-lower arm being overlaid with said front-lower arm so as to be fixed jointly to said front-lower arm; a seat back frame, which is integrally cast-formed and is fixed to said rear-lower arm so as to support an occupant; and, a woven spring member, which is formed of elastic fibers and is secured to said seat back frame, wherein said seat back frame comprises: a vertical wall portion, which extends along a periphery of said seat back frame; a plurality of spring-mounting members which are disposed inside said vertical wall portion so as to engage with said woven spring member; and a reinforcing member, which connects said vertical wall portion and each of said spring-mounting members for reinforcing the spring-mounting members, a hole, which is used to mount said woven spring member on said seat back frame, being provided in said reinforcing member between said vertical wall portion and each of said spring-mounting members.
Claim 2
Dependent Claim
185 words
A seat frame for a vehicle comprising: a front-lower arm; a rear-lower arm, which is formed of a material having greater tensile strength and compressive strength than said front-lower arm, said rear-lower arm being overlaid with said front-lower arm so as to be fixed jointly to said front-lower arm; a seat back frame, which is integrally cast-formed and is fixed to said rear-lower arm so as to support an occupant; and, a woven spring member, which is formed of elastic fibers and is secured to said seat back frame, wherein said seat back frame comprises: a vertical wall portion, which extends along a periphery of said seat back frame; a plurality of spring-mounting members which are disposed inside said vertical wall portion so as to engage with said woven spring member; and a reinforcing member, which connects said vertical wall portion and each of said spring-mounting members for reinforcing the spring-mounting members, a hole, which is used to mount said woven spring member on said seat back frame, being provided in said reinforcing member between said vertical wall portion and each of said spring-mounting members.
Claim 3
Dependent Claim
35 words
A seat frame for a vehicle according to claim 1, wherein a rear end portion of said front-lower arm is secured to a front end portion of said rear-lower arm by means of a rivet.
Claim 4
Dependent Claim
20 words
A seat frame for a vehicle according to claim 1, wherein said front-lower arm is a press-formed light metal product.
Claim 5
Dependent Claim
20 words
A seat frame for a vehicle according to claim 1, wherein said rear-lower arm is a press-formed iron plate product.
Claim 6
Dependent Claim
114 words
A seat frame for a vehicle according to claim 1, wherein said front-lower arm is formed by a pair of front-lower arm members, and said rear-lower arm is formed by a pair of rear-lower arm members, a front-reinforcing member being provided at a vicinity of a front end portion of said pair of front-lower arm members, and connecting said pair of front-lower arm members; and a rear-reinforcing member being provided at a vicinity of a rear end portion of said pair of rear-lower arm members, and connecting said pair of rear-lower arm members, wherein a lower frame member is formed by said front-lower arm, said rear-lower arm, said front-reinforcing member, and said rear-reinforcing member.
Claim 7
Dependent Claim
23 words
A seat frame for a vehicle according to claim 5, wherein said front-reinforcing member is bolted to said pair of front-lower arm members.
Claim 8
Dependent Claim
48 words
A seat frame for a vehicle according to claim 6, wherein one end of said front-reinforcing member is formed with a groove having a substantially U-shaped cross-section, a terminal end portion of a seat cover, which forms a covering for said vehicle seat, being fixed to said groove.
Claim 9
Dependent Claim
23 words
A seat frame for a vehicle according to claim 5, wherein said rear-reinforcing member is bolted to said pair of rear-lower arm members.
Claim 10
Dependent Claim
49 words
A seat frame for a vehicle according to claim 8, wherein one end of said rear-reinforcing member is formed with a planar surface having a thin cross-section, a terminal end portion of a seat cover, which forms a covering for said vehicle seat, being fixed to said planar surface.
Claim 11
Dependent Claim
27 words
A seat frame for a vehicle according to claim 1, wherein each of said spring-mounting members has an interlocking member which engages with said woven spring member.
Claim 12
Dependent Claim
27 words
A seat frame for a vehicle according to claim 10, wherein each of said spring-mounting members has a spring-mounting seat to which said interlocking member is mounted.
Claim 13
Dependent Claim
42 words
A seat frame for a vehicle according to claim 11, wherein said woven spring member has hooking members at opposite end portions thereof in a transverse direction of said woven spring member, each of said hooking members engaging with said spring-mounting seats.
Claim 14
Dependent Claim
26 words
A seat frame for a vehicle according to claim 11, wherein said reinforcing member is integrally formed with said vertical wall portion and said spring-mounting seat.
Claim 15
Dependent Claim
23 words
A seat frame for a vehicle according to claim 13, wherein said reinforcing member has said hole at a substantially central portion thereof.
Claim 16
Dependent Claim
36 words
A seat frame for a vehicle according to claim 11, wherein said spring-mounting seat has an interlocking member-mounting hole, said interlocking member being provided in said interlocking member-mounting hole so as to be freely engaged therein.
Claim 17
Dependent Claim
153 words
A seat frame for a vehicle comprising: a seat back frame, which is cast-formed and is fixed to a rear-lower arm portion so as to support an occupant; and, a woven spring member, which is formed of elastic fibers and is fixed to said seat back frame, wherein said seat back frame comprises: a vertical wall portion, which extends along a periphery of said seat back frame; a plurality of spring-mounting seats, which are disposed inside said vertical wall portion and mount interlocking members to said spring-mounting seats, so that said woven spring member engages with said interlocking members; and, a reinforcing member, which connects said vertical wall portion and each of said spring-mounting seats, for reinforcing said spring-mounting seats, a hole, which is used to mount said woven spring member on said seat back frame, being provided in said reinforcing member between said vertical wall portion and each of said spring-mounting seats.
Claim 18
Dependent Claim
153 words
A seat frame for a vehicle comprising: a seat back frame, which is cast-formed and is fixed to a rear-lower arm portion so as to support an occupant; and, a woven spring member, which is formed of elastic fibers and is fixed to said seat back frame, wherein said seat back frame comprises: a vertical wall portion, which extends along a periphery of said seat back frame; a plurality of spring-mounting seats, which are disposed inside said vertical wall portion and mount interlocking members to said spring-mounting seats, so that said woven spring member engages with said interlocking members; and, a reinforcing member, which connects said vertical wall portion and each of said spring-mounting seats, for reinforcing said spring-mounting seats, a hole, which is used to mount said woven spring member on said seat back frame, being provided in said reinforcing member between said vertical wall portion and each of said spring-mounting seats.
Claim 19
Dependent Claim
40 words
A seat frame for a vehicle according to claim 16, wherein said woven spring member has hooking members at opposite end portions thereof in a transverse direction of said woven spring member, said hooking members engaging with said interlocking members.
Claim 20
Dependent Claim
18 words
A seat frame for a vehicle according to claim 17, wherein said hooking members are a metal wire.
Claim 21
Dependent Claim
23 words
A seat frame for a vehicle according to claim 17, wherein said hooking members are sewed or welded to said woven spring member.
Claim 22
Dependent Claim
40 words
A seat frame for a vehicle according to claim 16, wherein said reinforcing member is integrally formed with said vertical wall portion and each of said spring-mounting seats, said reinforcing member having said hole at a substantially central portion thereof.
Claim 23
Dependent Claim
40 words
A seat frame for a vehicle according to claim 16, wherein each of said spring-mounting seats has an interlocking member-mounting hole, each of said interlocking members being provided in said interlocking member-mounting hole so as to be freely engaged therein.
References Cited (Backward Citations)
US3289220A
Cited
US3329466A
Cited
US4037829A
Cited
US4147336A
Cited
US4509796A
Cited
JPS62111228A
Cited
US4695097A
Cited
JPS62111227A
Cited
US4834458A
Cited
US4863219A
Cited
US4861104A
Cited
US5013089A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-07-11 | 1998-01-10 | 1998-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-07-11 | 2002-01-10 | 2002-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-07-11 | 2006-01-10 | 2006-07-12 | $7700.00 | Window Closed / Lapsed |