EP1916361B1 - Handle for mounting in an opening - Google Patents

Description

Background of the invention

The invention relates to a handle according to the preamble to the claims. 1

Brief description of the prior art

Such a handle is already out of the WO 01/79629 A known. Furthermore, be on the GB-A-1 508 858 directed.

From the brochure "Handbook 2000" Fa. Southco a handle is known in which the holding part consists of a screw which is screwed from the back into corresponding threaded holes in the body part and holds this body part in the opening of a control cabinet made of sheet metal. This type of assembly has the disadvantage that it is not shakeproof. In addition, the assembly is cumbersome, especially parts can be lost.

Object of the invention

The object of the invention is to improve the known arrangements, in particular with regard to the achievement of vibration safety and the simplification of the assembly. In addition, if possible loose parts should be avoided, which, if they fall into the cabinet, there may lead to short circuits. In addition, an overall alternative to the prior art is to be created.

solutions

The object is achieved according to the invention by the features of the characterizing part of claim 1.

By this measure, a large part of the tasks which the invention has already met is already fulfilled. In particular, the attachment is shakeproof, the assembly greatly simplified, and on the other hand, even very thin sheet can be kept safe. Different sheet thicknesses, if they do not exceed certain ranges, are kept free of play. Loose parts are usually not required. Very thin sheet metal can be reinforced by additional sheet metal parts. Furthermore, serving as panels sheet metal parts can be attached simultaneously with the handle.

Such a clip-like attachment is not yet known for the handle in the form shown here and the advantages described. Known is a Klipsbefestigung for quick assembly of a closure housing, wherein on the U.S. Patent 5,435,159 is referenced. There, for example, in a round breakthrough in a thin wall such a closure housing arranged. The housing intended for a cam lock comprises a head part which is to be arranged on the one outer side of the thin wall and which covers the outer edge of the opening, namely a flange from which a body part projecting through the opening in the mounted position emanates from the tongue elements resilient towards its outer surface projecting, which has at the free end an inclined surface for play-free support of the body part on the frame of the opening of the other, inner side of the thin wall. The disadvantage here is that the holding force of the integral with the body part holding or tongue elements is dependent on the spring tension, which depends on the plastic material used and therefore can not be made arbitrarily large. In handle application but often very large forces must be absorbed, so that this type of Klipsbefestigung can not be easily transferred to a handle.

From the EP 0258491 is a similar construction known as from the U.S. Patent 5,435,159 with which a lock cylinder by means of the locking cylinder receiving, retaining tongues forming plastic housing in thin-walled doors, drawers od. Like. Can be fastened. By sloping surfaces at the ends of the tongue a desired adaptability to commonly occurring variations of the components to be locked is achieved. Column 9 of the document also describes that the resilient tongues can no longer escape inwards after the lock cylinder has been mounted in the housing. A disadvantage of this prior art that a very specific construction, namely a round housing with inserted therein locking cylinder, must be provided to allow this locking of the tongues after assembly. Again, the transfer of this tongue attachment to a handle does not seem to be obvious.

In the handle according to the invention, in which the body part and the holding part are two separate parts, not molded as one piece of plastic as in the two last-mentioned pamphlets, results in a much greater load capacity, as needed, a not so strong plastic material that splash easily can be combined with stronger material, such as metal, so that the desired strength the handle is achieved by appropriate choice of material.

The spring of the invention may have a thickness of 0.5 to 0.8 mm. It is therefore possible to mount the spring in an extraordinarily small installation space (claim 8).

But of particular advantage is also that the channel can have such a width that a package of several adjacent flat springs is receivable (claim 3).

By this packaging, the holding forces can be adjusted as needed by assigning a certain number of flat springs to the package or packages.

But you can adjust the range of sheet thicknesses of the sheets, where the fitting, e.g. Handle, assemble. For this purpose, you simply package flat springs for different clamping ranges and thus increase the sheet thickness tolerance or sheet thickness range by a multiple.

Another advantage is the ease of manufacture of the body part to which the flat spring can be pushed (side).

The outer cross section of the body part with the attached spring and the associated opening in the thin wall are preferably rectangular (claim 4).

The body portion may constitute an elongate rectangle and form a head with a finger or handle (claim 5), further the body portion may form an elongated or substantially equilateral rectangle (claim 6) and the distance between the bearing surface of the flange head portion and the bearing surface the spring end be increased so that two thin walls are connected to each other (claim 6).

Furthermore, it is possible that the body part forms an elongated or substantially equilateral rectangle and the associated head part supporting point for the one end of a handle (claim 7).

Brief description of the drawings

The invention will be explained in more detail by means of exemplary embodiments, which are illustrated in the drawings.

Fig. 1A und 1B

unterschiedliche Ansichten eines nicht erfindungsgemäβen Griffes,

Fig. 2A und 2B

die zugehörige flache Feder, die mehrfach nebeneinander gelegt als Paket einsetzbar ist;

Fig. 3

ein zur Feder der Fig. 2A passendes Handgriffteil;

Fig. 4

ein Griff für zwei Durchbrüche;

Fig. 5A und 5B

eine weitere Ausführungsform einer Flachfeder und in

Fig. 6A und 6B

eine Anwendung bei einem erfindungsgemäβen Griff.

It shows:

Fig. 1A and 1B

different views of a not according to the invention handle,

FIGS. 2A and 2B

the associated flat spring, which is placed several times side by side as a package can be used;

Fig. 3

a to the spring of Fig. 2A fitting handle part;

Fig. 4

a handle for two openings;

Figs. 5A and 5B

another embodiment of a flat spring and in

FIGS. 6A and 6B

an application in a handle according to the invention.

Detailed description of the invention

The Fig. 1A and 1B show in two rotated by 90 ° side views a non erfindungsgemäβen handle 3210 with Klipsbefestigung for fixing the handle 3210 in a provided with opening 12 as a mounting hole thin wall 14, such as metal door. The Klipsbefestigung comprises a head portion 3228 with a the outer edge or edge 40 of the opening 12 after mounting overlapping flange 19, further one from the head part 3228 outgoing, after mounting through the opening 12 passing through the body portion 30, at the end 27 is a U-shaped spring 29 is held in a plan view, which is supported with its leg ends 31 on the inner edge 40 of the opening 12, wherein the U shaped spring 29 of the U-legs 35 in the interior, enclosed by the legs 35 lumen 37 projecting, resilient lugs 39 which are positively accommodated after assembly of corresponding recesses 41 of the body portion 30.

How the particular FIGS. 2A and 2B can be seen, the spring 29 is a flat, in plan view U-shaped component having U-legs 35 which extend from the U-web 43 initially parallel and with a first, small width, in the region of the projections or projections 39 starting with a second, larger width and their distance from each other enlarging, and which are cut at the end so substantially perpendicular to the course, see Fig. 2A Reference number 45 that after assembly, as in Fig. 1A represented, with a slight inclination to the plane of the thin wall 14 are supported on the breakthrough edge 40.

As Fig. 3 can recognize, the body part has opposing grooves 47, 49, which grooves 49, 47 form the recess 41 by the change of the groove bottom 51 and have such a depth that they at least one spring 29, the U-legs 35, at least during the assembly process is able to absorb.

The groove 49 may have a width 53 such that a package 55 of a plurality of adjacent flat springs 29 is receivable, as in Fig. 1 B It can be seen where a whole series of flat springs 29 form a common mounting and support surface 57. Since the individual legs of each spring can move independently of each other, there is a particularly good adaptation to the breakthrough edge, even if it should have irregularities. This results in a particularly stable attachment, with an overall lower surface pressure than results in the prior art.

This makes it possible to use non-metallic materials for the thin wall, such as plastic.

You can also split the body 3230 with the spring assembly 53, as in Fig. 4 shown, so that between these two body portions 126, 226, each forming its own groove 51, in each of which a package flat springs 29 can be inserted, not shown, there is the possibility of a shaft 61 or other arrangements between the two body portions 126th , 226, indicated by a dashed line 59 in Fig. 4C. Instead of an elongated opening 12 for receiving the two body portions 126, 226 of the handle 3210, two mounting apertures 112, 212 could be provided which are substantially narrower and just sufficient to accommodate the body portions 126, 226.

The body portion may form a substantially equilateral rectangle and the distance between the bearing surface of the flange-like head portion and the bearing surface of the end of the spring assembly be increased so that two thin walls are connected to each other.

By packaging the holding forces can be adapted as needed exactly to the requirements by assigning only a certain number of flat springs to the package or packages.

But you can also adjust the range of sheet thickness of the sheets, where you want to mount the handle. For this purpose, you simply package flat springs whose thickness is only 0.5 to 0.6 mm, for different clamping areas and thus increases the sheet thickness tolerance or the sheet thickness range by a multiple.

Another advantage is the ease of manufacture of the body part 530, to which the flat spring can be plugged or pushed. The provided for mounting fuselage 530 opens either on both sides in a flange which prevents lateral slipping of the spring (s) 529 on both sides, or at least on a, preferably outer side, wherein slipping on the delay side, where no Flange is provided is prevented by other suitable measures, such as limited extent of the associated opening 112, bonding or welding at least the last spring element of a package with the body part, widening a portion of the spring in the area or in the vicinity of the web to the spring with to jam the body part.

The body part is insofar also easy to produce by injection molding, as injection molds are used without slide, a split mold is sufficient.

While in the embodiments according to the FIGS. 1A to 4 the U-web forms a substantially straight line, can also realize an embodiment in which the (straight) web is shortened so far that from the U-shape becomes a V-shape, not shown.

On the other hand, the U-bar according to the invention obtains an M-shape or an M-shape (inverted W-shape) as in FIG Fig. 5A to 6B played.

The V or M shape can be fixed by a body part 630 having a channel 77 into which the flat spring or the package of flat springs can be inserted. The lateral fixation can be done by protruding into the channel projections 79 or the channel crossing pin means. From the ends of the V or M then go out the legs with the bearing surfaces.

Commercial evaluation

The invention can be evaluated commercially in control cabinet construction.

LIST OF REFERENCE NUMBERS

3210

Handle

12, 112, 212

rectangular, round breakthrough

14

thin wall, door leaf

19

flange

126, 226

front, outer side of the thin wall 14

27

The End

3228

headboard

29, 529

U-shaped spring, flat spring

30, 530, 630, 3230

body part

31

leg end

34

holding part

35

U-leg, leaf spring

37

lumen

39

approaches

40

edge

41

return

42

Federeinrichungen

43

U-web

45

cut end

47

groove

49

groove

51

groove bottom

53

Width, spring package

55

package

57

supporting

59

line

61

wave

71

flange

73

Procrastination page

75

spring part

77

channel

79

Projection, pin

Claims (8)

1. A handle (66) which has at least one holding plate which can be mounted in an opening (12) in a thin wall (614) such as a sheet-metal cabinet door, with a head part (3228), such as a flange or olive-shaped handle, which, after mounting, overlaps the outer edge or rim (40) of the opening (12) of the thin wall (14, 614) on one, outer, side thereof, and a body part (30, 630) which proceeds from the head part and which, after mounting, reaches through the opening (12) in the thin wall (14), and with a holding part (628) which is borne by the body part (30, 630), and which is supported on the other, rear, side of the thin wall (14), and which is separate from the body part (30, 630), wherein the holding part (628) is formed by holding elements (628) which project in a flexible manner from the body part (630) in the direction of its outer surface and of which the free end has an inclined surface (38) for supporting the body part (30, 630) on the edge or rim (40) of the opening (12) without play, wherein, at the end of the body part (630) which reaches through the opening, there is held a substantially U-shaped spring which is supported by its leg ends on the inner rim (40) of the opening (12), characterised in that the spring (628) represents a flat component, with U-legs which are truncated at the end substantially at right angles to the progression of the U-legs, such that after mounting they are supported on the opening edge or rim (40) by a slight incline to the plane of the thin wall (14, 614), and that the U-base forms a substantially M-shaped or W-shaped line, and that the spring (628) is held inside a channel (76) held by the body part (624).
2. The handle according to Claim 1, characterised in that the U-base of the spring (628) is held by a projection (79) or pin proceeding from the body part (630).
3. The handle according to claim 1 or 2, characterised in that the channels (77) have such a width that a package of several flat springs (628) lying next to one another can be received.
4. The handle according to one of claims 1 to 3, characterised in that the outer cross-section of the body part (630) and the associated opening (12) in the thin wall (14, 614) are rectangular.
5. The handle according to one of claims 1 to 4, characterised in that the body part (630) represents an elongate rectangle and forms a head (618) with a finger grip or handle.
6. The handle according to one of claims 1 to 4, characterised in that the body part forms an elongate or substantially equal-sided rectangle and that the distance between the bearing surface of the flange-like head part (618) and the bearing surface of the spring end (644) is enlarged such that two thin walls (614) are connected to one another.
7. The handle according to one of claims 1 to 4, characterised in that the body part forms an elongate or substantially equal-sided rectangle and the associated head part is the support point for one end of a handle.
8. The handle according to one of claims 1 to 7, characterised in that the spring has a thickness of 0.5 to 0.8mm.

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