DE8328123U1 - Holding device - Google Patents

Description

DIPL-ING. GUIDO ENGELHARDT PATENT ADVERTISER

7990 Frtedrichshafen

Rafi GmbH ft Co.
Electrotechnical special factory

7981 Berg near Ravensburg

Holding device

The innovation relates to a holding device for circuit boards, fasteners or the like. To their Attachment to a front panel.

The printed circuit boards assigned to the actuating elements used in a front panel are previously based on ar. The spacer bolts attached to the front panel are fastened with screws. The one when assembling the circuit boards and also However, the time and effort required for a possible expansion is considerable, so that the resulting Share of costs, especially for front panels that are equipped with a large number of circuit boards, proportionate is high. Furthermore, precise work is required, so that such assembly work can be carried out by auxiliaries not be carried out.

The task of the innovation is therefore to create a holding device by means of which it is possible to hold circuit boards and / or actuators in a simple manner and in a short time

Time, but still reliable to attach to a front panel, so that an economical assembly and Dismantling is given.

According to the innovation, this is achieved by two or more, preferably each arranged in pairs, in cross section Achieved U- or V-shaped clamp holders, the outer legs of which are attached to the front panel and whose facing free inner legs have one or more latching projections on which the circuit boards and / or the fastening element are supported directly or in cooperation with the front panel.

For the common mounting of a printed circuit board and an actuating element arranged on it and thus one Assembly, it is useful to offset the provided locking projections of the clamp holder in height from one another on their to attach free legs.

It is also advantageous to each have one of the locking projections Assign the lead-in chamfer and each clamp holder with at least to provide two latching projections, preferably arranged in the outer region of the free leg, wherein at least one support surface for supporting the printed circuit board is incorporated into the free leg of the clamp holder can be.

In order to secure the circuit board against lateral displacement, the free legs of the should also Clamp holder on the end faces facing the printed circuit board each with at least one, preferably one centrally arranged webs that engage in recesses incorporated in the circuit board.

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For releasable fastening of the clamp holder, these furthermore one in each case, preferably one in the middle Have screw channel, the outer legs of the clamp holder being spared in its upper region should be.

According to a further development it is provided for the lateral connection of clamping holders arranged next to one another on one side with a protruding tongue and on the other side with the tongue of the neighboring one Equip clamping holder receiving groove, the tongue and / or the groove inclined in the axial direction inclined surfaces should have.

If the clamp holders are designed as injection-molded plastic parts, they can be manufactured economically.

The holding device designed according to the innovation for circuit boards, fasteners or the like. To their Attachment to a front panel is not only simple in its design and therefore economical as a plastic injection-molded part manufacturable, but through this it is also possible to snap into printed circuit boards in a short time to be securely fastened. Namely, two or more U- or V-shaped clamp holders each with the outer legs attached to the front panel by screwing, gluing, riveting or in a similar manner and their inner legs are provided with locking projections, so the circuit board or an actuating element can easily be snapped into it. The assembly effort for Equipping a front panel with circuit boards is therefore only a few clamps, especially with larger circuit boards are to be attached to the front panel and this can be done in a pre-assembly, very little, but is

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a secure attachment that can withstand high loads withstands, guaranteed, because the inner legs of the clamp holder swiveled inwards under heavy loads and latching is therefore reliably prevented.

In the drawing, an embodiment of the holding device designed according to the innovation is shown is explained in detail below. Here show:

1 shows an actuating element arranged on a printed circuit board, which by means of the conductors

plate-supporting clamp holder is inserted in a vertical front panel,

FIG. 2 shows one of the clamp holders according to FIG. 1 in a side view, and FIG

3 shows the clamp holder according to FIG. 2 in a top view.

An actuating element 3 is inserted into the front panel labeled 1, which is arranged, for example, in an elevator, which is held on a circuit board 2 and whose adjustable button 4 is supported on the front panel 1. To hold the printed circuit board 2, two clamp holders 11 and 11 '/ are used opposite one another on the Inside of the front panel 1 are attached to this. The clamp holders 11 and 11 'thus create a holding device educated.

The U-shaped clamp holders 11, 11 'exist each from an outer leg 12, which is on the front panel 1 is attached, and an inner leg 13, which are connected to one another by a web 14. Means

Screws 17, which engage in a stud bolt 6 attached to the front panel 1, are the outer ones Leg 12 braced with this. To make this possible, the outer leg 12 is provided with a screw channel 15, which receives the stud bolt 6 and the screw 17 is provided. In addition, in the outer leg 13 in Extension of the screw channel 15, so that the screw is easily accessible, a recess 16 is provided.

To hold the circuit board 2, the inner

β 1o legs 13 of the clamp holders 11 and 11 'each two laterally attached in the outer area locking projections 21 and

I; 22 or 21 'and 22', which are provided with an insertion bevel 25

and 26 are provided. The distance between the raster jumps 21, 22 or 21 ', 22' and the front panel 1 is

15 dimensioned here in such a way that the button 4 of the actuating element 3 spat freely on the back of the front panel 1

f is supported. The circuit board 2 can thus be

· "■ snap into the provided on the clamp brackets 11 and 11 '

Latching projections 21 and 22 or 21 'and 22' can be securely attached in a short time without difficulty% 2o.

ι As to the inner legs 13 of the clamp holder 11, 11 'also

v. Support surfaces 29 and 3o are formed, is a holder

the circuit board 2 even without one attached to this Actuating element guaranteed.

And around the actuating element 3 by means of the clamp holder 11

and 11 'are to be attached to their inner legs 13 ; <and 13 'more opposite the locking projections 21 and 22

or 21 'and 22' vertically offset locking protrusions « 23 and 24 are provided, with which locking lugs 5 attached to the actuating element cooperate. Also the locking projections 23 and 24 each have an insertion bevel 27 bws. 28 assigned.

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In order to secure the inserted circuit board 2 against lateral displacement, ^{a web 31 is attached to the inner legs 13 and 13 1 of} the clamp holders 11, 11 ', which, as can be seen in FIG. 2, is inserted into the circuit board 2 incorporated recesses 7 engage.

To in a simple manner several clamp holders 11 together to be able to connect, is on these as shown in FIGS. 2 and 3 on each side a spring and on the other side a groove 33 is provided which receives the tongue of the adjacent clamp holder. The feathers 32 and the grooves 33 are each, in order to facilitate the insertion, with appropriately designed inclined surfaces 34 and 35 respectively.

The latching connection is also between the circuit board 2 and the clamp holders 11 and 11 'not to solve. By such a force namely the inner legs 13 and 13 ', as the clamp holders 11 and 11 ″ are pushed outwards, pivoted inwards, so that the circuit board 2 is almost impossible to disengage is.

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September 7, 1983 e-1
A 6668 a

Claims (9)

ιGUIDOENGELHARDT ■ · · DIPL-ING.PATENTANWALT7990 Friedriehshafen Rafi GmbH & Co. Electrotechnical special factory Berg near Ravensburg Protection claims 1. Holding device for circuit boards, fastening elements or the like. to attach them to a front panel, marked by, two or more, preferably each arranged in pairs, U- or V-shaped in cross-section Clamp holder (11, 11 '), the outer legs (12, 12') of which are attached to the front plate (1) and their facing free inner legs (13, 13 ') one or several locking projections (21, 22, 23, 24 or 21 ', 22', 23 ', 24'), on which the circuit board (2) and / or the fastening element (3) directly or in cooperation are supported with the front plate (1). 2. Holding device according to claim 1, characterized, the
that for the common holding of a printed circuit board (2) and an actuating element (3) arranged on it, locking projections (21, 22, 21 ″, 22 · or 23, 24, 23 ', 24 ") of the clamp holders (11, 11') in height offset against each other at their free tavern; ί.η (13, 13 ') are attached. 3. Holding device according to claim 1 or 2, characterized, that the locking projections (21, 22, 23, 24) are each assigned an insertion bevel (25, 26, 27, 28). 4. Holding device according to one or more of claims 1 to 3, characterized, that each clamp holder (11, 11 ') with at least two, preferably in the outer region of the free leg (13, 13 ') arranged locking projections (21, 22 or 23, 24) is provided. 5. Holding device according to one or more of claims 1 to 4, characterized, ./■ that the clamp holder (11) on the free leg (13) in each case at least one support surface (29, 3o) is provided to support the circuit board (2). 6. Holding device according to one or more of claims 1 to 5, characterized, that the free legs (13, 13 ') of the clamp holders (11, 11 ') on the end face facing the printed circuit board (2) each with at least one, preferably one centrally arranged web (31) are provided, which for Lateral locking of the circuit board (2) in this incorporated recesses (7) engage. 7. Holding device according to one or more of claims 1 to 6, characterized, that for the releasable fastening of the clamp holder (11) this each have one, preferably a centrally arranged screw channel (15) and that in the upper one Area the outer legs (12) of the clamp holder (11) are spared. 8. Holding device according to one or more of claims 1 to 7, characterized, • t · «I« tit ·· · · that for the side connection juxtaposed Klemmhoilter (11) these on one side each with a protruding spring (32) and on the other side with the spring of the neighboring one Clamp holder receiving groove (33) are provided. 9. Holding device according to claim 8 / characterized, that the tongue (32) and / or the groove (33) are provided with inclined surfaces (34, 35) inclined in the axial direction. 1o. Holding device according to one or more of the Claims 1 to 9, characterized, that the clamp holder (11, 11 ') as a plastic injection-molded part are trained. A 6668a e-s September 2, 1E83