US2277875A - Car seat - Google Patents
Car seat Download PDFInfo
- Publication number
- US2277875A US2277875A US296051A US29605139A US2277875A US 2277875 A US2277875 A US 2277875A US 296051 A US296051 A US 296051A US 29605139 A US29605139 A US 29605139A US 2277875 A US2277875 A US 2277875A
- Authority
- US
- United States
- Prior art keywords
- seat
- spring
- springs
- lever arm
- car seat
- 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.)
- Expired - Lifetime
Links
- 238000010276 construction Methods 0.000 description 4
- 230000000295 complement effect Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 206010052428 Wound Diseases 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000003190 augmentative effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
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
- B60N2/50—Seat suspension devices
- B60N2/502—Seat suspension devices attached to the base of the seat
-
- 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
- B60N2/50—Seat suspension devices
- B60N2/506—Seat guided by rods
- B60N2/508—Scissors-like structure
-
- 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
- B60N2/50—Seat suspension devices
- B60N2/54—Seat suspension devices using mechanical springs
- B60N2/544—Compression or tension springs
Definitions
- This invention relates to car-seat construction and especially to the construction of a seat of which the load-sustaining surface is cushioned by springs or their equivalent in elastic shockabsorbing means.
- the invention aims to perfect the construction of car seats by an advanced application of the springs, providing a seat of greater stability than heretofore and one in which substantially uniform cushioning is obtained irrespective of the applied weight.
- a principal object of the invention to devise a spring arrangement functioning to distribute load more effectively than heretofore and thereby eliminate the spot vibrations of the ordinary seat.
- the invention consists in the novel construction and in the adaptation and combination of parts hereinafter described and claimed.
- Figure l is an underside plan view illustrating a car seat constructed in accordance with the present invention.
- Fig. 2 is a transverse vertical section taken to an enlarged scale on line 2-2 of Fig. 1.
- Fig. 3 is a fragmentary longitudinal vertical section on line 3--3 of Fig. 2;
- Fig. 4 is a fragmentary longitudinal vertical section on line 4-4 of Fig. 2.
- the numerals 5-6 denote the side and end sill pieces of a rectangular bed functioning as the base for the seat proper which I indicate as comprising a at plate 1 padded as at 8 and surfaced with the conventional upholstering 9.
- said seat is provided at its opposite ends, considered longitudinally, with lever bars arranged in pairs 0f which the one bar IU of each pair is pivotally hung from a lug II xed to one of the side sills 5 and the complementary bar i2 pivotally hung from a lug I3 fixed to the other side sill.
- a car seat the combination of a bed part, a seat part disposed in elevated relation to the bed part and providing pendent hangers adjacent each side of the latter, a lever arm extending the approximate width of the bed part pivotally connected at one end to a side of the bed part and fulcrumed in proximity of said pivoted end to a seat-carried hanger, a complementary lever arm correspondingly fulcrumed and pivoted at the opposite side of the seat and traversing the rstnamed lever arm on the longitudinal median line of the seat, connection between said crossed arms at the point of juncture thereof coupling the arms for corresponding vertical movement, and
- tension springs extending from the coupled centers and from the free ends of the lever arms to the seat part for yieldingly sustaining a load upon the seat part.
- a seat part disposed in elevated relation to the bed part, a lever arm pivotally connected at one end to a side of the bed part and fulcrumed in proximity of said pivot to the seat part, a lever arm complementing said first-named lever arm and correspondingly pivoted and fulcrumed at the opposite side of the seat to traverse the rstnamed arm on the longitudinal median line of the seat, connection between the crossed arms coupling the same for corresponding vertical movement about their respective pivots and fulcrnms as axes, and tension springs extending from the coupled centers and from the free ends of the lever arms to the seat part for yieldingly sustaining a load upon the latter.
- a car seat the combination of a bed part, a seat part disposed in elevated relation to the bed part, a lever arm pivotally connected at one end to a side of the bed part and fulcrumed in proximity of said pivot to the seat part, a lever arm complementing said first-named lever arm and correspondingly pivoted and fulcrumed at the opposite side of the seat to traverse the rst named arm on the longitudinal median line of the seat, connection at the point of juncture of the arms coupling the same for corresponding vertical movement about their respective pivots and fulcrums as axes, tension springs extending diagonally from the free ends of the lever arms to the seat part for yieldingly sustaining a load upon the latter, and a pair of tension springs eX- ⁇ tending between the seat part and the center connection of the arms, one of said center springs being disposed perpendicularly and the other diagonally.
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
Description
March 3l, 1942. A, c, MACBETHl 2,277,875
GAR SEAT Fiied sept. 22, 1939 I. Y l.. 6'/ a l f Tommy;
Patented Mar. 31, 1942 UN i TE D STT 91 trice 3 Claims.
This invention relates to car-seat construction and especially to the construction of a seat of which the load-sustaining surface is cushioned by springs or their equivalent in elastic shockabsorbing means. For its object the invention aims to perfect the construction of car seats by an advanced application of the springs, providing a seat of greater stability than heretofore and one in which substantially uniform cushioning is obtained irrespective of the applied weight. It is, more particularly, a principal object of the invention to devise a spring arrangement functioning to distribute load more effectively than heretofore and thereby eliminate the spot vibrations of the ordinary seat.
The invention consists in the novel construction and in the adaptation and combination of parts hereinafter described and claimed.
In the drawing:
Figure l is an underside plan view illustrating a car seat constructed in accordance with the present invention.
Fig. 2 is a transverse vertical section taken to an enlarged scale on line 2-2 of Fig. 1.
Fig. 3 is a fragmentary longitudinal vertical section on line 3--3 of Fig. 2; and
Fig. 4 is a fragmentary longitudinal vertical section on line 4-4 of Fig. 2.
In said drawing the numerals 5-6 denote the side and end sill pieces of a rectangular bed functioning as the base for the seat proper which I indicate as comprising a at plate 1 padded as at 8 and surfaced with the conventional upholstering 9. In accordance with the present invention said seat is provided at its opposite ends, considered longitudinally, with lever bars arranged in pairs 0f which the one bar IU of each pair is pivotally hung from a lug II xed to one of the side sills 5 and the complementary bar i2 pivotally hung from a lug I3 fixed to the other side sill. These two lever bars cross one another in the substantial median line of the seat, at which point the same interconnect through the instrumentality of a bolt I4 carried by the one bar and riding in a slot I5 of the other bar. Each of the bars, at a point intermediate the interconnecting centers and their respective pivoted ends, is ful-v crumed as at I6 and I'I to respective hangers I8 and I9 pendent from plate 1.
Functioning to yieldingly elevate the plate above the bed sills are multiple tension springs applied to the ends and centers of the crossed lever bars and extending therefrom to the plate,
such end springs, denoted by 20 and 2I, being desirably open-Wound Whereas the center springs 22-23 are close-wound for greater stretch resistance. As will be seen from an inspection of the drawing the center spring 23 lies perpendicularly whereas the other center spring 22 and each end spring 20 and 2I are disposed diagonally, an arrangement whereby spring 23 is immediately resistant to initial compression of the seat and is augmented rst by the spring 22 and then by the terminal springs 20 and 2 I.
In furtherance of` the oflice of the springs 20, 2| and 22, particularly as distinguished from a perpendicular spring, a comparison of the strains is best understood by graphing the relative degree to which two lines, one extending at right angles and the other diagonally between parallel planes, are caused to stretchby separation of the planes. While substantially uniform in the instance of the perpendicular spring, the increase in the effective resistance of the diagonal spring mounts progressively as the axial line of the spring is caused to approach the vertical.
It will of course be apparent that my arrangement of the bars in the seat functions to distribute compression stresses transversely thereof in that movement of either of the two bars I0 and I2 nds a corresponding movement of the complementary bar.
While illustrating the now preferred embodiment of the invention modications will readily occur to those skilled in the art land it is therefore my intention that the hereto annexed claims be given a scope in their interpretation commensurate with the state of the advance.
What I claim, is:
1. In a car seat, the combination of a bed part, a seat part disposed in elevated relation to the bed part and providing pendent hangers adjacent each side of the latter, a lever arm extending the approximate width of the bed part pivotally connected at one end to a side of the bed part and fulcrumed in proximity of said pivoted end to a seat-carried hanger, a complementary lever arm correspondingly fulcrumed and pivoted at the opposite side of the seat and traversing the rstnamed lever arm on the longitudinal median line of the seat, connection between said crossed arms at the point of juncture thereof coupling the arms for corresponding vertical movement, and
tension springs extending from the coupled centers and from the free ends of the lever arms to the seat part for yieldingly sustaining a load upon the seat part.
2. In a car seat, the combination of a bed part,
a seat part disposed in elevated relation to the bed part, a lever arm pivotally connected at one end to a side of the bed part and fulcrumed in proximity of said pivot to the seat part, a lever arm complementing said first-named lever arm and correspondingly pivoted and fulcrumed at the opposite side of the seat to traverse the rstnamed arm on the longitudinal median line of the seat, connection between the crossed arms coupling the same for corresponding vertical movement about their respective pivots and fulcrnms as axes, and tension springs extending from the coupled centers and from the free ends of the lever arms to the seat part for yieldingly sustaining a load upon the latter.
3. In a car seat, the combination of a bed part, a seat part disposed in elevated relation to the bed part, a lever arm pivotally connected at one end to a side of the bed part and fulcrumed in proximity of said pivot to the seat part, a lever arm complementing said first-named lever arm and correspondingly pivoted and fulcrumed at the opposite side of the seat to traverse the rst named arm on the longitudinal median line of the seat, connection at the point of juncture of the arms coupling the same for corresponding vertical movement about their respective pivots and fulcrums as axes, tension springs extending diagonally from the free ends of the lever arms to the seat part for yieldingly sustaining a load upon the latter, and a pair of tension springs eX- `tending between the seat part and the center connection of the arms, one of said center springs being disposed perpendicularly and the other diagonally.
ALBERT C. MACBETH.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US296051A US2277875A (en) | 1939-09-22 | 1939-09-22 | Car seat |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US296051A US2277875A (en) | 1939-09-22 | 1939-09-22 | Car seat |
Publications (1)
Publication Number | Publication Date |
---|---|
US2277875A true US2277875A (en) | 1942-03-31 |
Family
ID=23140398
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US296051A Expired - Lifetime US2277875A (en) | 1939-09-22 | 1939-09-22 | Car seat |
Country Status (1)
Country | Link |
---|---|
US (1) | US2277875A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2460596A (en) * | 1949-02-01 | Cushion support | ||
US2554045A (en) * | 1949-02-18 | 1951-05-22 | Jr Leo L Minor | Spring supported hobbyhorse |
US2620855A (en) * | 1945-10-29 | 1952-12-09 | Atwood Vacuum Machine Co | Vehicle seat |
US2866664A (en) * | 1954-10-20 | 1958-12-30 | John B Parsons | Vertical seat adjusting mechanism for automobiles |
US3070342A (en) * | 1959-04-23 | 1962-12-25 | Middletown Mfg Company | Rocking chair with declining legs |
US3086742A (en) * | 1960-12-20 | 1963-04-23 | Clark Equipment Co | Seat suspension |
US3865340A (en) * | 1972-10-04 | 1975-02-11 | Elliott Brothers London Ltd | Support apparatus |
US20080258363A1 (en) * | 2005-09-13 | 2008-10-23 | Vasile Cinciu | Mechanical Control Shock-Absorbent Anti-Recoil Universal Mechanism |
-
1939
- 1939-09-22 US US296051A patent/US2277875A/en not_active Expired - Lifetime
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2460596A (en) * | 1949-02-01 | Cushion support | ||
US2620855A (en) * | 1945-10-29 | 1952-12-09 | Atwood Vacuum Machine Co | Vehicle seat |
US2554045A (en) * | 1949-02-18 | 1951-05-22 | Jr Leo L Minor | Spring supported hobbyhorse |
US2866664A (en) * | 1954-10-20 | 1958-12-30 | John B Parsons | Vertical seat adjusting mechanism for automobiles |
US3070342A (en) * | 1959-04-23 | 1962-12-25 | Middletown Mfg Company | Rocking chair with declining legs |
US3086742A (en) * | 1960-12-20 | 1963-04-23 | Clark Equipment Co | Seat suspension |
US3865340A (en) * | 1972-10-04 | 1975-02-11 | Elliott Brothers London Ltd | Support apparatus |
US20080258363A1 (en) * | 2005-09-13 | 2008-10-23 | Vasile Cinciu | Mechanical Control Shock-Absorbent Anti-Recoil Universal Mechanism |
US8231114B2 (en) * | 2005-09-13 | 2012-07-31 | Century International Arms Corporation | Mechanical control shock-absorbent anti-recoil universal mechanism |
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