DE1654302A1 - Clamp and friction-reducing material - Google Patents

Description

DR. A. MENTZEL

DIPL, ING.W.DAHLKE PATENT LAWYERS

506 HEFHATH b. KÖI.X, DBV phone: bensbehg β 4200

1 7. July 1 "Wa / ho

3IEGLER, INC! Santa Monica, California, USA

"Clamp and friction-reducing material"

Me invention relates to brackets and friction-reducing materials especially for those brackets that are mainly used in the manufacture of furniture and the like and especially for clamping wire springs vorgeaerieri are.

109811/0437

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The spring snakes used, for example, in the furniture industry, for example, comprise essentially parallel cross pieces which are each alternately connected by curved pieces. Such springs are usually held by metal clips on their. Ends attached. These brackets, which encompass an encompassing part of the substantially straight piece of the end piece of each, are screwed, nailed or otherwise fastened to the frame or other supporting part of the furniture. Because the spring constantly exerts considerable pressure on the bent. Area of the clamp exerts the clamped spring often produce und'die clip unwanted noise as a result of that, the T ^- parts rub against each other. To prevent such noises, the inside surface of the clip has often been lined with paper or cloth. The noise-dampening function of such linings is, however, very short-lived. Furthermore, a polyethylene coating has been used in order to maintain the noise-dampening effects of the paper or the cloth for an extended period of time. The "-" - results have not been satisfactory because ^ the brackets did not have a long enough sound-dampening effect and, moreover, were too expensive.

Accordingly, the invention provides for relatively inexpensive metal clips that are excellent and long have lasting noise-dampening properties.

109811/0437 - 3 -

The invention further provides an improved friction reducing device Material for! Metal clip η in front.

gsgeaäii is provided in this context, a lined (preferably irit paper) Ketallklaramer with. a chemical compound su 'coat that significant catch paraffin, ethyl vinyl acetate and a Contains mixed polymer of diethylstyrene and vinyltoluene, this connection also contains precautionary execution b ei play a small amount of at least one I-iono- or biglyceride of a fatty acid which forms an edible fat .

The invention is described below with reference to the drawings described in more detail. In the drawings:

Fig. 1 a Pe rspelrfci van sees one of the invention Il and

FIG. 2 shows a section on the line 2-2 of FIG. 1.

As shown in Fig. 1, the bracket 11 comprises a upper section 19 and a lower. Section 21, the are allied to one another by an arch 2J, The Käjlmmer 11 is connected to a support part 15 by means of screws 17

109811/0437 - 4 -

BADORiGiNAL

". As shown in Pig. 2, the Käjlmmer 11 is formed from a metal piece 25, onto which an adhesive layer 27 for attaching a layer 29 is made applied to a dampening material (preferably paper) istj the layer 29 is with the metal piece 25 connected by the adhesive 27. The layer 29 is coated with a chemical compound, which is described below will be described; this top layer forms the layer 31.

The chemical compound referred to earlier includes substantial amounts of a perfectly refined one. Paraffins or mixtures thereof. In the preferred Embodiments, the selected paraffin contains at least 25 carbon atoms, with the preferred However, paraffin has 32 carbon atoms (CUo

66). However, only those paraffins that are solid at room temperature can be used. Although the amount of paraffin is not critical, it is preferred. Embodiment of the new compound, the paraffin includes at least 50 percent by weight of the compound, with $ 58 being the preferred amount. The compound also includes substantial amounts of a high molecular weight ethylene vinyl acetate resin. The preferred compound comprises at least 20 percent by weight of the resin, but preferably 25 percent. The connection also includes

109811/0437 - 5 -

V '"BAD ORIGINAL'

lovely amounts of a mixed polymer of methyl styrene and vinyl toluene. This interpolymer is described in detail in TJSA Patent 3,000,868. The preferred embodiment of the invention comprises at least 10% by weight of this interpolymer, with $ 15 being preferred. In addition, and crucially, it has been found that the above compound is thereby substantially improved in its ability. a. To prevent squeaking, even after repeated use of the clip, from adding a small amount of "an" edible mono- or diglyceride of an edible-fat-forming fatty acid or mixture thereof. The preferred compound of this type is G- Iyceraolmonostearat having a melting point between. 13.9 and 16.1 ⁰ O that is insoluble in. of water, alcohol in hot., hydrocarbon, mineral oil and edible oil is soluble. Only a small amount is required, the preferred embodiment of the compound Contains at least 1 percent by weight of such glycerides, 2fo being preferred.

The previously described clip has been found to have remarkable noise dampening properties. This clip is very inexpensive to manufacture. Such brackets represent, as a result of the new; Compound represents a significant advance in the furniture industry.

109811/0437 '~ 6 -

Claims (1)

Claims 1. Clamp for grasping the wire of a serpentine spring with a supporting I-letallstück and a cladding connected to this metal piece, thereby
geke η η ζ ei without t that the panel
is coated with a compound containing solid paraffin, an ethylene vinyl acetate resin and a high molecular weight copolymer of methyl styrene and vinyl toluene. 2> clip according to claim 1, characterized in that the lining consists of paper. 5. Clip according to claim 1 and 2, characterized in that it is ken η I show η et that the compound also additions of a compound or a mixture of the Contains group of edible mono- and diglycerides of fatty acids which form edible fat. 4-. Clamp according to claim 1 to 3 »thereby g e • k e η η ζ e i c h η e t that paraffin is made up of molecules consists of at least 25 carbon atoms 10 9 811/0437 b · Klaimaer according to claims 1 to 4> characterized in that the compound from the group of mono- and diglycerides of the fatty acids forming edible fat is glycerol monostearate. Ö. Clamp according to claim 1 to 5 »characterized thereby ζ eich net that the paraffin at least 50 wt. ^ ό, the vinyl acetate resin at least 10 wt.> and the interpolymer at least 20% by weight of the compound form. "* 7 · Friction-reducing coating, especially for clips according to claim 1 to 6, characterized by paraffin, ethylene vinyl acetate resin, a mixed polymer high molecular weight of methyl styrene and vinyl toluene and an addition of a compound or a mixture from the group of mono- and diglycerides which form the edible fat. Fatty acids. 8. Covering according to claim 7, d a d u r c h g e k e η η draws, that the paraffin is at least 25 carbon has atoms in the molecule. 109811/0437 G. Covering according to claim 7 and 8, characterized in that " k e η. η ζ e ic h η et that it is "at the connection is glycerol monostearate. 10. Covering according to claim 7 to 9 you know ζ e i c h η e t that the paraffin -52 carbon atoms has in the molecule and etv; a 58 weight ^ der- covering mass, the Vinylacetatharζ 15- Gew. ^ and the copolymer Contains 25 wt. . Covering according to Claims 7 "to 10, characterized in that it is g e k e η η ζ e i c h η e t that the glycerol monostearate 2% by weight of the lining mass. 1098 11 /0/..3 7