US2060465A

US2060465A - Spring cushion seat

Info

Publication number: US2060465A
Application number: US25771A
Authority: US
Inventors: Daniel A Greene
Original assignee: Stubnitz Greene Spring Corp
Current assignee: Stubnitz Greene Spring Corp
Priority date: 1935-06-10
Filing date: 1935-06-10
Publication date: 1936-11-10
Anticipated expiration: 1953-11-10

Description

Nov. 10, 193

2 Sheets-Sheet 1 D. A. GREENE SPRING CUSHION SEAT Filed June 10, 1955 INVENTOR.

A ORNEYS Nov. 10, 1936.

D. A. GREENE SPRING CUSHION SEAT Filed June 10, L935 2 Sheets-Sheet 2 m mvsmpn DANIEL A. GREENE BY I W ATTORNEYS.

Patented Nov. lib-"1936 2,060,465 SPRING SHION SEAT.

Daniel A. Greene, Flint, Mich., assignmto Stubnitl-Greene Spring Corporation, Adrian, Mich, a corporation of Michigan Application June .10, 1935, Serial No. 25,771

9Claims.

Thisinvention relates to a spring cushion seat.

The broad idea of securing cushion trimming or cover to the bottom frame by means of a spring clip is old. However, theheretofore known arrangement for securing the seat cover to the bottom frame by a spring clip has a serious disadvantage in that the spring clip is inaccessible for removal purposes. It is an object of this invention to produce a spring cushion seat, the cushion cover ofwhich is secured to the bottom frame by means of a spring clip which is readily accessible and removable so that repairs to the.

spring cushion seat may be readily effected by any ordinary mechanic and the cover easily replaced thereafter.

In the construction of cushion seats it is highly desirable to utilize the air entrapped within the seat cushion to eifect a cushioning and snubbing action on the springs by controlling the venting of the air as the cushion is depressed when loaded and as the cushion expands when the load is removed. In the heretofore known seat cushion constructions the seat frame has been shaped in such a manner that the cover for closing the bottom frame to obtain-this air cushioning and snubbing action has been very expensive due to the die costs necessary to make the cover properly fit the frame. It is an object of this invention to so construct the bottom frame that a very simple, plain and inexpensive cover for closing the opening in thebottom frame may be used thus obviating the need for the above mentioned expensive dies.

This invention also contemplates a simple and inexpensive arrangement for easily securing the slats to the bottom frame.

In the drawing:

Fig. 1 is a top plan view of the seat with the trim cover partially broken away. 7

Fig. 2 is a section along the line 2-2 of Fig. 1.

Fig. 3 is a section along the line 33 of Fig. 1.

Fig. 4 is a detail view showing the method of attaching the trim cover to the seat frame by means of spring clips.

Fig. 51s a perspective of the clip.

Fig. 6 is a fragmentary perspective of: the inverted seat frame with the bottom cover I6 omitted showing the fabric secured to the V frame 1 by spring clips. Fig. 7 is a section through the frame illustrating the method of. snapping the clips and fabric on to the frame.

Referring more particularly to the drawing the seat comprises a bottom frame I, a plurality of coil springs 2. padding 3, a cover 4, and slats 5. The cover 4 is preferably leather,,but it may be any other suitable trimming fabric or material. The slats 5 are v shaped in cross section and provided with'a plurality of opposed openings 6 for receiving the bottom convolutions of the coil springs 2.

The bottomframe member I is rolled in the form of an inverted V in cross section having an outer sidewall I and an inner side wall 8. The bottom edge of the outer side wall 1 is provided with a curved return bent portion in the form of a bead 9 for purposes described below.

The slats 5 which extend crosswise of the seat are secured to the side members of the bottom frame I. For this purpose each end of each slat 5 is flared outwardly as at I and curved downwardly as at II so that it fits snugly over the outer faces of the side walls I and 8 of the frame I. The flared portion ID of each slat adjacent the point, where it merges with the main portion of the slat is provided with a pair of struck out ears I2 which are bent into a tight engagement with the bottom face of. the side wall 8 of the frame I. Thus the ears I2 in conjunction with the curved and flared end II securely fix each end of the slat 5 to the frame. If desired, although not necessary, the ears I2 and end portions II of the slats may be spot welded to the frame I. g

In view of the fact that it is a very common occurrence for a. seat, such as shown, to be repaired after being installed and used in an automotive vehicle, it is essential that the trim material 4 be readily and easily detached from the frame'and that the manner of attachment be obvious to the ordinary garage man or repairman. To this end it is proposed to secure the trim 4 to the bottom frame member I, with a novel clip arrangement. A perspective of this clip is shown in Fig. 5. The clip I3 is made from suitable spring metal such as steel and is U shaped in section. The spaced edges I4 along the mouth of the clip I; are turned slightly outwardly so that they will, readily slide over the trim material during assembly without tearing the material. The edges I4 of the clip are spaced apart a distance somewhat less than the diameter of the beaded edge 9 of the frame I.

The assembling of the trim cover 4 to the frame I is illustrated in Fig. 4. After the springs 2 have been placed under the proper tension in the usual manner, thetr'im 4 is drawn taut over the beaded edge 8 of the frame I. A clip l3, as shown in Fig. 4, is then placed over the'beaded edge 9 and the trim material 4 andpreferably between the walls I and 8 of the frame. I so that after assembly the clip will not be visible when the seat is installed in the vehicle body. A suitable tool l5, similar to a pincers, is then placed over the clip 13 and the bead 9. The pincers ii are then drawn closed so that the clip l3 snaps over the bead 9 into the position shown in Fig. 2 to hold the trim 4 on to the frame i. As many clips may be used as desired. The spacing of the clips l3 will depend upon the size and the speciflc type of cushion seat.

As-viewed in Fig. 2 it will be noted that the clip llis concealed behind the trim 4 and the outer wall I of the frame I when the seat is placed in upright position. However, upon raising the seat and inspecting the manner of attachment of the trim 4 to the frame I any ordinary mechanic would appreciate thata suitable tool such as a screw-driver can be used to pry or spring each clip out of engagement with the bead 9 thus permitting the trim 4 to be removed and the seat repaired. After the seat has been repaired the self-same clips B may again be used to secure the trim 4'to the frame because the clips are not destroyed or otherwise injured in disassembling them from the frame.

It is very desirable in any automotive vehicle seat 'to utilize the air entrapped within the seat for cushioning purposes as the seat is being loaded and to retard the return flow of air into the deflated seat for preventing undue rebound of the springs as the load is removed. This invention contemplates a seat bottom frame and cover plate therefor which will obtain this air cushioning action and which is very simple in structure and inexpensive. As above described, the frame i is in the form of an inverted V provided with an outer wall I and an inner wall 8. This inverted V construction of the frame I has a very definite purpose, namely, it facilitates the installation of a cover ii for the bottom frame I. This cover It may be a sheet of leather, fabric, fiber board, orsheet metal. Preferably the cover l6 takes the form of a flat sheet of metal l6 which may.

be welded or otherwise suitably secured along its side edges to the side portions of the frame I. The and edges Il may be spaced 2. short distance, such asone-sixteenth orone-eighth of an ,-in ch, fromthe bottom edge IB of the inside walls 8 of the end portions of the frame I, thus forming an elongated vent opening I! at each end. The size of this vent opening l9 will vary depending upon the size of the seat; the larger the seat the smaller the vent and vice versa. In view of the fact that the walls I and I of the frame l-are the web of covering material and the bead of said edge of the frame for securing the covering to the frame whereby the covering can be readily removed without injuring the same.

2. In a seat, the combination comprising a frame member having an inwardly turned beaded edge, a web of covering material for the seat wrapped about the inwardly turned beaded edge of the frame member, and a 0 shaped spring clip snapped over and resiliently gripping the web of covering materialand [the beaded edge of theframe member for securing the covering to the frame whereby the covering can be' readily removed without injuring the same.

3. In a seat, the combination comprising a frame member in the form of an inverted V section, the outer wall of the frame member being turned inwardly and return bent to form a bead positioned between the two walls of the inverted V frame member, a web of covering material for the seat wrapped about the inwardly turned beaded edge of the frame member, and

a plurality'of C shaped spring clips snapped over the covering material and the beaded edge of the frame for securing the covering to the frame, each of the said spring clips being located on the outside of the beaded edge of the wall of the frame member whereby they are readily removable.

4. In a seat, the combination comprising a metal bottom frame member in the form of a rolled inverted V section comprising inner and outer walls, the lower edge of the outer wall being turned inwardly and curved upwardly to form a bead positioned between the inside and outside walls of the frame member, a web of covering material for the seat wrapped about the beaded edge of the bottom frame member, and a C shaped spring clip snapped over the web of covering material and the beaded edge of the bottom frame member for removably securing the covering to the frame, thebottom lip of the spring clip being positioned along the inwardly turned edge of the outside wall meme ber whereby the bottom edge of the wall may be used as a fulcrum for a suitable tool such as a screwdriver and the bottom lip of the springclip imperforate the frame member i in conjunction with the cover plate It effectively inclose the bottom of the seat and cooperate with the trim cover 4 to form a lung or bellows type of air cushion which cushions-the seat during loading'and prevents undue rebound during unloading. This inverted V construction of the frame I likewise permits the use of an ordinary flat cover plate l6 secured along its side edges as above described to the frame l'and obviates the need for any complicated .dle work which would otherwise be necessary to properly shape the edges of the cover plate It to form a proper sealing joint with the frame I.

I claim:

1. In a seat, the combination comprising a frame member having a curved beaded edge, a web of covering material for the seat having an edgev portion wrapped about the curved beaded edge of the frame member, and a freely movable spring clip snapped over and resiliently gripping engaged by the tool to remove the same. I

5. In a seat, the combination comprising a bottom frame member in the form of a rolled metal inverted V section having inside and outside walls, a slat for reinforcing the bottom frame member in the form of a rolled V section, the slat having a flattened end in the form of a V for fitting over the upper face of the inverted V frame member, and one or more ears struck v a bead extending therealong spaced inwardly from the outer side wall of the frame, a plurality of springs'carried by the frame. a coverout of the end of the slat for engaging the under ing for said springs drawn taut over the springs and downwardly along said outer side wall and then inwardly from said side wall around said corner andabout the said bead, one or more spring clips adapted to be sprung over said covering and bead and having a resilient interengagement with said covering and bead to removably secure the covering to said bead whereby the drawing of the covering about said frame corner snubs the covering and relieves the said clip or clips of a portion of the upward pull exerted by the covering,

7. A spring cushion comprising a sheet metal frame having an outer side wall and an inwardly turned edge forming a corner with the outside wall, the said inwardly turned edge of the frame having a bead extending therealong spaced inwardly from the outer side wall of the frame, a plurality of springs carried by the frame, a covering for said springs drawn taut over the springs and downwardly along said outer side wall and then inwardly from said side wall around said corner and about the said bead, one or more freely removable spring clips c-shaped in cross section adapted to be sprung over said covering and bead and having a resilient interengagement with said covering and bead to removably secure the covering to said bead whereby the drawing of the covering about said frame corner snubs the covering and relieves the said clip or clips of a portion of the upward pull exerted by the covering and permits the clips to be sumciently yieldable so that they can be readily removed without damage to the covering.

8. A spring cushion comprising a sheet metal frame having an outer side wall and an inwardly turned edge forming a corner with the outside wall, the said inwardly turned edge of the frame having a bead extending therealong spaced inwardly'from the outer side wall of the p 3 clips having a mouth of less width than the diameter of the bead and cover material whereby the clip is sprung over the covering and the beaded edge of the frame and tensioned to have a resilient interengagement with said covering and bead to removably secure the covering to said bead whereby the drawing of the covering about said frame corner snubs the covering and relieves the said clip or clips of a portion of the upward pull exerted by the covering and permits the clips to be sufficiently resilient so that they can be readily assembled to, and removed from, the said head without damage to the covering.

9. A spring cushion comprising a sheet metal frame having an outer side wall and an inwardly turned edge forming a corner with the outside wall, the said inwardly turned edge of the'frame having a bead extending therealong spaced inwardly from the outer side wall of the frame, a plurality of springs carried by the frame, a covering for said springs drawn taut over the springs and downwardly along said outer side wall and then inwardly from said side wall around said corner and about the said bead, a plurality of freely removable springclips C- shaped in cross section sprung over said covering and bead in spaced relation whereby the clips .are substantially concealed when the spring cushion is viewed from the top or side, said spring clips having a resilient interengagement with said covering and bead to removably secure the covering to said beadwhereby the drawing of the covering about .said frame corner snubs the covering and relieves the said clip or clips of a portion of the upward pull exerted by the covering and permits the clips to be sumciently yieldable so that they can be readily removed without damage to the covering.

DANIEL A. GREENE,

ominous or CORRECTION.

Patent No. 2,060,465.

It is hereby certified that error appears in the printed specification of the above numbered patent requiring correction'as follows:

DANIEL A r GREENE.-

Page 2. first column, line 74, claim 1. for the word "movable" read removable; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 19th day of January, A. D. 1937.

(Seal) Henry Van Ar sdalv Acting Commissioner of Patents,