EP1916361A1 - Handle for mounting in an opening - Google Patents

Abstract

A thin-walled metal cabinet has a hinged door and a handle located within a rectangular hole. The U-shaped handle has an anchorage block located on the rear face of the cabinet wall, where it is retained by two diametrically opposed spring-operated ratchets.

Description

Background of the invention

The invention relates to a handle having at least one in a breakthrough in a thin wall, such as sheet metal door mounting plate, with the edge of the opening of the thin wall on one (outer) side covering headboard, such as flange or handle, and one of the head part outgoing, through the opening in the thin wall slidable torso part, and with a supported by the body part, on the other (rear) side of the thin wall supporting, separate from the body part holding part, wherein the holding part is formed by holding elements that of resiliently projecting towards the body part in the direction of its outer surface and the free end of which has an inclined surface for play-free support of the body part on the edge or edge of the opening, comprising a head part with a flange covering the outer edge or edge of the opening after assembly, starting from the head part, after mounting through the opening h inductive hull part, at the end of a substantially U-shaped spring is held, which is supported with their leg ends on the inner edge of the opening.

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" the Fa. Southco a handle is known in which the holding part consists of a screw which is screwed from behind into corresponding threaded holes in the body part and this fuselage part holds in the opening of a control panel made of sheet metal. This type of assembly has the disadvantage that it is not shakeproof. In addition, the assembly is cumbersome, In particular, 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 in that the spring in a plane perpendicular to the plane of the thin wall is a total of a flat component, with U-legs that are cut at the end so substantially perpendicular to the course of the U-leg, that they are after Mounting with a slight slope to the plane of the thin wall to support the breakthrough edge or edge.

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, such a closure housing is arranged, for example in a round opening in a thin wall. That for one Vorreiberverschluß imaginary housing comprises a to be arranged on the one outer side of the thin wall, the outer edge of the breakthrough overlapping headboard, namely a flange from which a breakthrough in the mounted position protruding hull part projecting from the direction of its outer surface resilient tongue elements which Having 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 a stronger material, such as metal, so that the desired strength of the handle is achieved by appropriate choice of material.

Since the spring means can be provided with freely selectable spring force, the locking force can be adapted to the respective task and is not dependent on the plastic material.

In the prior art, the locking force is highly dependent on the material properties of the plastic used, unless you use a pen, but in turn makes the assembly in an undesirable manner complicated, especially since a blind assembly is not possible, which can be provided according to the invention.

According to one embodiment, a spring is provided, which is a flat, in plan view U-profile exhibiting component, with U-legs, which extend from the U-web initially parallel and with a first, small width, starting in the region of the approaches with a second , greater width and their distance from each other enlarging, and are cut at the end so substantially perpendicular to the course that they are supported after mounting with a slight slope to the plane of the thin wall on the breakthrough edge or edge.

The spring 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 15).

In addition to the advantages already mentioned, there is the further advantage that embodiments are possible which allow an even more accurate adaptation to the given conditions. Thus, it is possible (claim 7), that the body part has opposing grooves, which grooves form the recess and have such a depth that they are capable of receiving the U-legs of at least one spring at least during the assembly process.

But of particular advantage is also that the groove can have such a width that a package of several juxtaposed flat springs is receivable (claim 10).

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 on which the flat spring plugged (from above) or postponed (sideways) can be. The provided for mounting fuselage opens either on both sides in a flange which prevents lateral sliding on both sides, or at least on a, preferably outer side, wherein slipping on the inner side is prevented here by suitable measures, such as limited extent of the associated Breakthrough, bonding or welding at least the last spring element with the body part.

The outer cross section of the body part with the attached spring and the associated opening in the thin wall are preferably rectangular (claim 11).

The body portion may constitute an elongated rectangle and form a head with a finger or handle (claim 12), furthermore the body portion may form an elongate or substantially equilateral rectangle (claim 12) 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 13).

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 14).

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 Griffes, der mittels der erfindungsgemäßen Klipsbefestigung, ausgestattet ist;

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. 5

eine alternative Ausführungsform, die mit seitlich aufschiebbarem Federelement arbeitet;

Fig. 6

eine Ausführungsform, die mit von oben aufsteckbarem Federelement arbeitet;

Fig. 7

ein zum Aufschieben geeignetes Federelement; und

Fig. 8A und 8B

eine weitere Ausführungsform einer Flachfeder und in

Fig. 9A und 9B

eine Anwendung bei einem Griff.

It shows:

Fig. 1A and 1B

different views of a handle, which is equipped by means of Klipsbefestigung invention;

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 suitable for the spring of Figure 2A handle part.

Fig. 4

a handle for two openings;

Fig. 5

an alternative embodiment, which works with laterally slidable spring element;

Fig. 6

an embodiment which works with top aufsteckbarem spring element;

Fig. 7

a suitable for pushing spring element; and

Figs. 8A and 8B

another embodiment of a flat spring and in

Figs. 9A and 9B

an application with a handle.

Detailed description of the invention

Figs. 1A and 1B show in two rotated by 90 ° side views a 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 emanating from the head part 3228, after mounting through the opening 12 passing through fuselage part 30, at its end 27 a top view U- shaped spring 29 is held, 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 lumens 37 projecting, resilient Lugs 39 which are positively received after assembly of corresponding recesses 41 of the body portion 30.

As can be seen in particular Figs. 2A and 2B, 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 Area of the lugs or projections 39 extend starting with a second, larger width and their distance from each other enlarging, and which are cut at the end substantially perpendicular to the course, see Fig. 2A reference numeral 45, that after assembly, as shown in Fig. 1A represented, with a slight inclination to the plane of the thin wall 14 are supported on the breakthrough edge 40.

As can be seen Fig. 3, 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 the U-legs 35 at least one spring 29th at least during the assembly process is able to record.

The groove 49 may have a width 53 such that a packet 55 of a plurality of adjacent flat springs 29 is receivable, as can be seen in Fig. 1 B, where a whole series of flat springs 29 form a common mounting and support surface 57. As 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.

It is also possible to divide the body part 3230 with the spring assembly 53, as shown in FIG. 4, so that there is no illustration between these two body regions 126, 226, each of which forms its own groove 51 into which a respective flat spring 29 can be inserted , the possibility arises to arrange a shaft 61 or other arrangements between the two body regions 126, 226, indicated in FIG. 4C by a dashed line 59. 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 part may form a substantially equilateral rectangle and the distance between the bearing surface of the flange-like head part 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 529 (FIG. 7) can be plugged (from above according to FIG. 6) or slid (laterally according to FIG. 5). The intended for mounting fuselage 530 opens either on both sides in a flange 71, which prevents lateral sliding of the spring (s) 529 on both sides, see Fig. 6, or at least on a, preferably outer side, as shown in Fig. 5, wherein slipping on the delay side 73, where no flange 71 is provided, is prevented by other suitable means, such as limited extension of the associated aperture 112, bonding or welding at least the last spring element of a package to the body portion, widening a portion 75 of the spring 29 in the area or in the vicinity of the web 43, to clamp the spring with 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 Figures 1A to 7, the U-web forms a substantially straight line, can also realize an embodiment in which the (straight) web is shortened so far that the U-shape becomes a V-shape , not shown.

On the other hand, the U-bar can also be given an M-shape, or the V-shape can be extended to an M-shape (inverted W-shape) by legs set on both sides, as shown in FIGS. 8A to 9B.

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 (15)

Handle (10) having at least one in a breakthrough (12) in a thin wall (14), such as sheet metal door mountable mounting plate (16) with a the edge (24) of the opening (12) of the thin wall (14) their head part (28) covering a (outer) side (26), such as a flange or handle, and a body part (30) extending from the head part (28) and slidable through the opening (12) in the thin wall (14), and carried with by the body part (30) on the other (rear) side (32) of the thin wall (14) supporting itself, separated from the body portion holding part (34), wherein the holding part (34) of retaining elements (36) is formed of resiliently projecting from the body part (30) in the direction of its outer surface and whose free end has an inclined surface (38) for play-free support of the body part (30) on the edge or edge (40) of the opening (12), comprising a head part (12). 3228) having an outer edge or edge (40) of the aperture (12) mounting overlapping flange (19), a from the head part ( 3228 ) outgoing, after mounting through the aperture reaching through the body portion (30), at the end ( 27 ) a substantially U-shaped spring ( 29 ) is held, the is supported with its leg ends (31) on the inner edge (40) of the opening (12), characterized in that the spring ( 29 ) in a plane perpendicular to the thin wall is a total of a flat component, with U-legs ( 35 ) which are truncated at the end substantially at right angles to the course of the U-leg, that they are supported after mounting with a slight slope to the plane of the thin wall (14) on the breakthrough edge or edge (40). Handle according to claim 1, characterized in that the U-web forms a substantially straight line (Fig. 2A). Handle according to claim 1, characterized in that the U-web is shortened so far that the U-shape is substantially a V-shape. Handle according to claim 1, characterized in that the U-web forms a substantially M- or W-shaped line (Fig. 8A). Handle according to claim 2, wherein the flat, in plan view U-shaped spring (29) of the U-legs (35) in the of the legs (35) enclosed lumen (37) projecting resilient projections (39) which after Assembly of corresponding recesses (41) of the body part (30) are receivable in a form-fitting manner, characterized in that the U-shaped spring (29) of the U-legs (35) in the lumen (37) enclosed by the legs, resiliently resilient Having projections (39) which are positively received after assembly of corresponding recesses (41) of the body part (30) (Fig. 1A, 1B). Handle according to claim 5, characterized in that the legs (35) emanating from the U-web (43) extend initially parallel to one another and with a first, small width, starting in the region of the projections (39) starting with a second, larger width and their Extend distance from each other, and at the end are so cut substantially at right angles to the course (45) that they support after mounting with a slight slope to the thin wall (14) on the breakthrough edge (40). Handle according to claim 6, characterized in that the body part has opposite grooves (47, 49), which grooves (49, 47) form a recess (41) by changing the depth of the groove bottom (51) and have such a depth, in that it is capable of receiving the U-limbs (35) of at least one spring (29) at least during the assembly process. Handle according to claim 2, 3 or 4, characterized in that the spring (628) is held within a channel (76) held by the body part (624). Handle according to claim 8, characterized in that , the U-web of the spring (628) from a protruding from the body part (630) projection or pin (79) is held. Handle according to one of claims 1 to 9, characterized in that the grooves or channels (77) have a width such that a package of a plurality of adjacent flat springs is receivable. Handle according to one of claims 1 to 9, characterized in that the outer cross section of the body part (624) and the associated aperture (12) in the thin wall (14) are rectangular. Handle according to one of claims 1 to 11, characterized in that the body part (624) constitutes an elongated rectangle and forms a head (618) with a finger or handle (66). Handle according to one of claims 1 to 11, characterized in that the body part forms an elongated or substantially equilateral rectangle, and that the distance between the bearing surface of the flange-like head part (418) and the bearing surface of the spring end (444) is increased so that two thin walls (416, 16) are connectable to each other. Handle according to one of claims 1 to 11, characterized in 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 (12, 112). Handle according to one of claims 1 to 14, characterized in that the spring has a thickness of 0.5 to 0.8 mm.

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