US2332042A

US2332042A - Spring structure

Info

Publication number: US2332042A
Application number: US440800A
Authority: US
Inventors: Asaro Vito
Original assignee: LA Young Spring and Wire Corp
Current assignee: LA Young Spring and Wire Corp
Priority date: 1942-04-28
Filing date: 1942-04-28
Publication date: 1943-10-19
Anticipated expiration: 1960-10-19

Description

Oct. 19, 1943. v. ASARO 2,332,042

S:RING STRUCTURE Filed April 28, 1942 I N VEN TOR. 2 Wfa /75'0/"0 Patented Oct. 19, 1943 SPRING STRUCTURE Vito Asaro, Detroit, Mich, assignor to L. A. Young Spring and Wire Corporation, Detroit, Mich, a

corporation of Michigan Application April 28, 1942, Serial No. 440,800

4 Claims. ('01. 5-264) This invention relates to improvements in spring structures.

The main objects of this invention are:

First, to provide an improved spring structure of the type in which the springs are mounted upon cross strips in which the cross strips may be fabricated of relatively light sheet metal stock, at the same time are very rigid and one to which the springs are easily and quickly secured.

Second, to provide a structure of this type in which the springs are or may be quickly and easily mounted upon and secured to the supporting strip or member in a manner that prevents loosening or rattling and at the same time holds the spring in upright position.

Third, to provide a structure having these advantages in which the springs can be assembled uponan associated supporting strip without the aid of tools.

Objects relating to details and economies of the invention will appear from the description to follow. The invention is defined and pointed out in the claims.

A preferred embodiment of the invention is illustrated in the accompanying drawing, in which:

Fig. 1 is a fragmentary perspective view of a supporting strip with a, spring mounted thereon in accordance with my invention.

Fig. 2 is a fragmentary inverted view of the structure shown in Fig. 1.

Fig. 3 is a fragmentary longitudinal section on line 33 of Fig. 2.

Fig. 4 is a fragmentary inverted view corresponding to that of Fig. 2 showing certain steps of the mounting of the springs upon the support.

Fig. 5 is a fragmentary view showing the relation of the bottom coils of the spring prior to mounting upon the supporting strip.

In the accompanying drawing, I have only shown a fragment of a supporting strip and a single spring, but it will be understood that commonly the springs are mounted upon a supporting strip which is suitably conformed at its end for mounting upon a frame. As such mounting features are well known in the art and vary according to the type of structure in which the supporting strip and its springs are to be used I have not deemed it necessary to illustrate the same.

The supporting strip of my invention designated generally by the numeral I comprises a downwardly facing channel 2 and an upwardly facing channel 3, these channel having the common intermediate leg 4. The channel 2 is preferably substantially wider than the channel 3 to provide an effective fit for the helically coiled spring 5 as will hereinafter appear.

The web 6 of the downwardly facing channel has a loop I struck up therefrom while the com-' mon leg 4 of the supporting strip has a somewhat elongated hole 8 therein, longitudinally spaced relative to the loop I.

The bottom coil 9 of the spring terminates in a, straight angularly disposed portion I0. This bottom coil 9 is threaded through the loop I and its terminal portion Iii is threaded through the hole 8 with the angle II thereof engaging the edge I2 of the hole adjacent the loop. This may be effected by a rotative or threading movement of the spring on its axis, the hole 8 being of such longitudinal dimension as to permit the tip of the terminal portion I a to freely enter the holel However, continued rotation of the spring brings the side I3 of the terminal portion into engage ment with the edge I2 of-the hole and under increasing stress as the rotation continues, so that the bottom coil is placed under spring stress. This relation of the parts is further illustrated in Fig. 4 where the tip terminal is about to enter the hole 8. The bottom coil is also under stress engagement with the outer leg I4 of the upwardly facing channel.

When the spring is completely seated, the tip of its terminal portion engages the outer leg I5 of the downwardly facing channel, see Fig. 2. The bottom coil is also placed under axial stress which brings the portion l6 thereof opposite the loop 1 in tension engagement with the top of the downwardly facing channel, see Figs. 1 and 3.

Initially, the pitch of the bottom coil is substantially the same as that of the other coils, as shown in Fig. 5.

With this arrangement of parts, the springs may be very quickly mounted on the support and they are very securely retained against movement thereon and against any rattling or chafing and they may be engaged Without the aid of tools and without excessive efiort on the part of the workman as the Workman can grasp the spring of the top coil, or Well above the top coil and easily manipulate the spring to engage it with the support, as I have described.

I have illustrated and described my invention in an embodiment which I consider highly satisfactory. I have not attempted to illustrate or describe various embodiments or adaptations which I contemplate as it is believed that this disclosure will enable those skilled in the art to embody or adapt my improvements as may be desired.

tion of a length corresponding approximatelyito the width of the downwardly facing channel,

the bottom coil of the spring-beingthreaded through said loop with its angularly disposed terminal portion disposed through said hole with its angle engaging the: edge of the:h0le adjacent the loop under tension and its tip engaging the inner side of the outer legof the i:

downwardly facing a channel. saidbottom coil :be

tween said loopia-ndi 11611673150; engagingtheouter log=of the-upwardly facing channel: under tension; saidbottom. coil. also; beingunder axial stress whereby (the spring, is held iniupright position withthe-portion thereof;- diametr'really opposed to the portion engaging said-loop-under tension engagement; with the top. of the =web of the: dom'iwardly= facing; channel;

2. In a springstructura the' combination of a supporting strip? having; 312 downwardly facing channel: and-an: upwardly facing channel; the wehof. the downwardiy-facing channel having a loop; struck', up: therefromand the? vertical leg common .to saidichannelmhaving a hole therein :7.

longitudinally; spaced. relative, to I said: loop, and minimally coiled spring; the -bottomcoil of; which terminatesin arr angularly. disposed portion, the bottom-.coil :of -the springbeing threaded through said-1 loop; with itsa-ngularity disposed terminal Mon disposedthrough saidhole withitsangle mngthezedgeeof thechole:adjacent'thefloop under: tension; said bottom coil between said loop andrholewalsoaengagingtthe outer leg. of the'aup- Iii) wardly facing channel under tension, said bottom coil also being under axial stress whereby the spring is held in upright position with the portion thereof diametrically opposed to the portion engaging said loop under tension engagement with the top of the web of the downwardly facing channel.

3. In a spring structure, the combination of a supporting strip having? a: downwardly facing channel and an upwardly facing channel, the Web of the downwardly facing channel having a loop struck up therefrom and the vertical leg common to said channels having a hole therein longitudinally spaced relative to said loop, and a helieally' coiledspring, the bottom coil of which terminatesina straight angularly disposed portion of alength corresponding approximately to the' width of, the downwardly facing channel, the bottom coil of the spring being threaded through said loop with its angularly disposed terminal portion disposedithrough said hole-with its. angle engaging the edge of the hole adjacent the loop and its tip engaging theinneri sideofzthe outer leg. of the downwardlyv facing channel, said bottomcoil betweenlsaid loop and. hole also engagingthe outer leg. of the upwardlyfacing channel.

4. In a spring structure, the combination of a supporting strip. having a. downwardlyfacing channel and an, upwardly facing. channel, the web of thee-downwardly facingchannel having: a loop. struck. up therefrom.v and. the vertical leg common to said channels having a. hole therein longitudinally spacedlrelative to said loop, and a helically coiledspring, the bottom=eoil of which terminates in an angularlyy disposed portion, the bottom coilof the .springheing threaded through said loop. with its angularly disposed terminal portion disposed .througlisaid hole-with its. angle engaging the edge of the hole adjacent-theloop, the portion of said bottom coil extending between said. loop and.. hole alsov engaging under stress the outerleg of the. upwardly facing. channel.

VITO ASARO.