WO1997031557A1

WO1997031557A1 - Mounting frame for fitted appliances in control and work desks

Info

Publication number: WO1997031557A1
Application number: PCT/EP1997/000933
Authority: WO
Inventors: Robert Duscher
Original assignee: Robert Duscher
Priority date: 1996-02-26
Filing date: 1997-02-26
Publication date: 1997-09-04
Also published as: DE19607137A1; AU1877397A

Abstract

The invention concerns a mounting frame (4) for fitted appliances in control and work desks, the mounting frame comprising an upper and a lower longitudinal bar (6, 8) and a left-hand and a right-hand crossbar (10, 12). Cross-struts (14a, 14b) with fittings (60) for holding appliance-support plates extend parallel to the crossbars (10, 12) inside the mounting frame. According to the invention, in order to be able to vary the position of the cross-struts (14a, 14b) in the longitudinal direction of the longitudinal bars (6, 8) according to a defined grid pattern, mounting slots (40), in which the end sections of the cross-struts (14a, 14b) fit in interlocking manner, are provided in the opposite sides of the longitudinal bars (6, 8). The cross-struts can be inserted from above into the longitudinal bars (6, 8), which take the form of U-shaped profiled rails, the cross-struts being secured by closure plates screwed onto the longitudinal bars.

Description

RECORDING FRAME FOR INSTALLATION RATE OF CONDITIONING AND WORK COOLERS

The invention relates to a mounting frame for built-in devices for operating and work consoles, with a right-angled outer main frame, consisting of an upper and a lower longitudinal bar and a left and a right transverse bar, at least one cross bar running parallel to the cross bars, and fixing means located on the cross bar , on which a built-in device or a front panel corresponding to the built-in size of the built-in device can be attached.

Such mounting frames are part of operating and work consoles, such as those found in laboratories, in operations centers, in control stations of power plants, in the flight monitoring tower, in the police force and elsewhere. A desk or work table generally contains a shallow horizontal storage surface for receiving writing material, a separate computer keyboard and the like, and at the rear of this storage surface there is an operating panel which slopes upwards and backwards. The control panel is housed in a mounting frame and contains, for example, peripheral devices for data acquisition, data monitoring, visual displays,

Control heads, input keys, radio and telephone sets and the like.

There are standard sizes for such mounting frames, in particular the built-in devices have a device carrier plate with standardized dimensions. Accordingly, cross bars are installed in the mounting frame. These cross bars run - from the perspective of a person sitting in front of the desk - from top to bottom or from back to front and have a defined grid spacing. With a receiving frame with a width of 288 mm, for example, a grid spacing of 12 mm is usually provided, so that the The width of the equipment carrier plates to be picked up by the cross bars can be any multiple of 12 mm. A built-in device can be arranged on two crossbars with the help of a single device support plate, it is also possible to arrange several built-in devices one above the other on several device support plates.

It often happens that the entire occupancy area formed by the receiving frame is not used. In this case, the areas not occupied by built-in devices are closed by blind front panels. Additional built-in devices can then be installed at these points later.

Now, however, the retrofitting of additional devices as well as the replacement of defective devices with the previously usual mounting frames are associated with considerable effort. In the known mounting frames, threaded holes are formed on the mutually facing sides of the longitudinal strips at the defined grid spacings, which are used to fasten angle elements, which in turn are used to fasten cross bars. Another variant of a known mounting frame provides that

Fasten crossbars from the outside using pre-drilled holes in the longitudinal strips. In order to supplement or convert a control panel with additional devices, the mounting frame must first be released from its fixed position in the control panel. Then the screws sitting in the longitudinal strips must be loosened

Push through the longitudinal strips and engage in the end faces of the cross bars. In order to move a crossbar to another place, a considerable amount of work is required; because the screws of the cross bar in question, which are difficult to access, must first be loosened in the manner described above, and then the screws must also be fastened again after the cross bars have been moved to the desired location. Of course, with these known mounting frames, special care must be taken that the upper and lower ends of the respective cross bars are attached to the mutually aligned, pair-related points on the longitudinal strips. In the case of a narrow grid, one end of the cross bar may not be fixed in the right place, but in an adjacent place. If, when trying to insert the built-in device, it is found that the crossbar is inclined, the entire process must be repeated.

The invention has for its object to provide a receiving frame of the type mentioned, in which the crossbars can be easily and quickly inserted into the desired location in the receiving frame.

This object is achieved by the present invention in that the upper and the lower longitudinal bar each have a plurality of receiving slots, of which one receiving slot in the upper and one receiving slot in the lower longitudinal bar are assigned to one another in pairs and for receiving an upper or one are formed at the bottom of a cross bar. The arrangement of slots corresponding to the desired grid allows the cross bars to be inserted very quickly. A cross bar is simply inserted with its two ends into the slots assigned in pairs. This can be done from the top of the receiving frame, so that it is not necessary to detach the frame from the desk.

The cross rungs are equipped with fixing agents, which interact with complementary fixing agents on the implement carrier plate. Various embodiments known to those skilled in the art come into consideration as fixing means, for example snap locks, for example a set of four snap locks per device carrier plate. The snap locks are formed by two mutually opposite, spring-loaded balls, between which a pin thickened at the free end is snapped, which is attached to the device support plate. The special type of fixative is not the subject of the present invention and therefore should not be explained further.

The receiving frame according to the invention preferably consists of aluminum components, in particular profiled rails, which are commercially available and can be easily processed. To form the mounting frame, two profile rails for the longitudinal strips are each connected at the end via transverse strip profile rails by means of screwing. If the upper and lower longitudinal strips are symmetrical with respect to the longitudinal center plane perpendicular to the receiving frame, and consequently the end configuration of the individual cross bars is identical, not only can the manufacture of the receiving frame be greatly simplified, but the cross bars can also be made in one order Insert the 180 ° rotated position (top and bottom ends swapped) in the mounting frame.

The rapid insertion of the cross rungs is possible in particular if the receiving slots in each longitudinal bar are open towards the front and at least partially can be covered by a closure plate extending over the entire length of the associated longitudinal bar.

The term “front side” here means the side of the cover frame facing the operator. In this embodiment, the receiving slots can be opened by removing the closure plates on both longitudinal strips, so that the cross bars can be easily removed and inserted. To securely fix the cross bars and therefore the built-in devices in the mounting frame, the locking plates are placed and screwed onto the two longitudinal strips, preferably from the front. A particularly favorable embodiment of the invention provides that the longitudinal strips are preferably made of light metal U-shaped rails, the openings of which face each other, and that the receiving slots are formed in the front leg of the respective U-shaped rail. In this embodiment, the ends of the cross bars are inserted into the receiving slots in the front leg of the U-profile rails until they are seated on the inside of the lower leg of the relevant longitudinal bar, that is to say not provided with receiving slots.

In particular, the above-mentioned choice of material (aluminum or an aluminum alloy or the like) makes it easy to manufacture all of the components of the receiving frame according to the invention. In particular, the dimensions of the receiving slots can each be selected such that the two ends of a cross bar can only be inserted into the receiving slots that belong together in pairs. In the case of a receiving frame with dimensions of, for example, 288 x 144 mm, the receiving slots in the relevant leg of the U-shaped rail have a depth of approximately 1 cm, the excess of the width of the slot being relatively small in relation to the width of the associated cross bar. so that the cross bar can be easily inserted on the one hand, but on the other hand the cross bar has so little play in the receiving slot that the other end of the cross bar can only be inserted in a very specific receiving slot on the opposite long side, but not in an adjacent receiving slot.

In order to give the cross bars an additional hold in the longitudinal strips, the invention provides that at least the leg of the U-profile rails facing away from the front side of the receiving frame has an in

Direction on the opposite receiving slot protruding projection which engages in a complementary recess in the end portion of the cross rung. U-profile rails made of an aluminum alloy are commercially available which have such a cross section. To form the longitudinal strips used according to the invention, the slots need only be cut into one leg of the U-shaped rail with the predetermined grid spacing (of, for example, 12 mm). The end sections of the cross bars then receive a recess so that the inserted end section of the cross bars engages in a form-fitting manner in the U-shaped rail and the top of the cross bar is aligned with the top of the longitudinal bar. If after the assembly all cross bars the locking plates on the two

Longitudinal plates are screwed on, the closing plates protrude slightly above the tops of the cross bars. Then when the device trays are attached to the cross bars, the tops of the closing plates on the longitudinal strips and the tops of the device trays are flush with one another, so that an overall continuous surface of the control panel is obtained.

The cross bars of the mounting frame are simple square profile bars made of aluminum or another alloy. The cross bars are also made of aluminum square profiles and have a height that corresponds to that of the longitudinal strips. Their width is only a few millimeters. The central regions of the cross rungs are preferably provided with cutouts which permit the attachment of fixing means, for example snap locks or the like, for attaching device support plates.

Exemplary embodiments of the invention are explained in more detail below with reference to the drawings. Show it:

Fig. 1 is a perspective view of a control panel;

Fig. 2 is a perspective view of a receiving frame for

Built-in devices, as used in the control panel shown in Fig. 1;

Fig. 3 is a sectional view according to section line III-III in

Fig. 2;

4 shows a plan view of the receiving frame equipped with a plurality of cross bars and built-in devices;

Fig. 5 is an enlarged detail view of the detail V in Fig. 4;

6 shows a cross-sectional view of a longitudinal bar of the receiving frame, the sectional plane being in the region of a receiving slot;

7 is a cross-sectional view similar to a longitudinal bar like FIG.

6, however, the end of a cross rung is received in the receiving slot;

Fig. 8 is a partially sectioned perspective view of a mounting frame equipped with a built-in device, and

9 shows an end section of a cross rung.

The illustration in FIG. 1 is intended to show at which point the mounting frame according to the invention is inserted. Fig. 1 shows an operating and work desk, as it is for example in the operations centers of the Firefighters and the like are used. The operating and work console 2 contains a horizontal support plate 3 arranged on a stand, to which - from the operator's point of view - an operating panel which rises obliquely backwards and which is designed with the aid of a receiving frame 4 and contains various built-in devices. A keyboard 20 is shown in FIG. 1 to represent the possible built-in devices. In addition, a telephone is indicated in the left end of the control panel.

The structure of such control panels and desks is known. The present invention relates to a special embodiment of a receiving frame 4, which is held in an oblique position by holding devices of the operating and work desk, which are not of interest here, and accommodates a number of built-in devices.

As shown in Fig. 2, the receiving frame 4 consists of an upper longitudinal bar 6 and a lower longitudinal bar 8, which are held together laterally by a right cross bar 10 and a left cross bar 12, so that a rectangular frame is formed. The terms "top" and "bottom" refer to the

Viewing angle of the operator according to FIG. 1, indicated by an arrow P in FIG. 2. A plurality of cross bars extend parallel to the cross bars 10 and 12, of which two cross bars 14a and 14b are represented in FIG. 2. All parts of the receiving frame 4 are made of light metal rails.

FIG. 4 shows a top view of the receiving frame 4 in a somewhat modified configuration with cross bars 141, 14m and 14n. Further crossbars are indicated by dashed lines. Also indicated are built-in devices, namely a keyboard 20, an oscilloscope 22 and one

Numerical display 24. The built-in devices 20 and 22 and 24 are held by an associated device support plate, the dimensions of which correspond to the standard grid dimensions of the mounting frame. The device support plate for the keyboard 20 on the right in FIG. 4 increases Example a width of 3 grid units. The device support plate for the oscilloscope 22 and the numerical display 24 takes up a width of 4 raster units. On the right in FIG. 4, a longitudinal rung 15 is also indicated, which can be arranged, for example, with angle brackets between two adjacent cross bars in order to accommodate additional fixing means for the device support plates of the oscilloscope 22 and the numerical display 24. However, such longitudinal rungs are not absolutely necessary. One can provide separate fixing means for the device support plates of devices 22 and 24 on the cross bars.

The crux of the present invention is the arrangement of the cross bars 14, (14a, 14b; 141.15 m ...) between the longitudinal strips 6 and 8, which are located opposite one another at a distance.

Before the special type of storage of the crossbars is explained, the fixing means with which the device support plates for the built-in devices 20 and 22 and 24 are fixed to the crossbars will be briefly discussed.

In Fig. 4 there are several on the cross bars 141, 14m and 14n

Retaining fittings 60 attached.

Fig. 5 shows a section of a cross bar 14, wherein it is indicated by dashed lines that the inner region of the cross bar is thinned and equipped with a recess, as is the case with

Example in Fig. 3 is indicated at 15.

By screwing or the like, two ball carriers 62 are fastened at a certain distance from one another on the side of the cross rung 14 shown on the left in FIG. 5. The balls 64, which are spring-loaded in the ball carriers 62, have a defined distance from one another. On the underside of a device carrier plate 50, partially shown on the left in FIG. 5, there is a holding pin with a diameter widened at the end. This holding pin is in his Installation position indicated by dashed lines between the two balls 64 in Fig. 5. Such a "snap lock" is known as a holding fitting for such purposes and should only be given here as a possible example for different fixing means.

In FIG. 2 and FIG. 4, several receiving slots 40 are indicated, which are formed on the two mutually facing inner sides of the longitudinal strips 6 and 8 at defined grid intervals. The grid spacing can be, for example, 12 mm, the width of a cross bar being 2.5 mm. The length of the transverse strips 10 and 12 is then dimensioned such that the clear distance between the longitudinal strips 6 and 8 also corresponds to an integral multiple of 12 mm.

As can be seen in particular from FIG. 3, the two longitudinal strips 6 and 8 are formed symmetrically with respect to a longitudinal center plane M of the receiving frame 4. The same applies to the cross bar 14b in FIG. 3.

The longitudinal bar 6 consists of a U-shaped rail 26 and an angular profiled rail 30 fastened thereon by means of screws (not shown in FIG. 3 (but can be seen in FIG. 8)). Similarly, the longitudinal bar 8 consists of a U-shaped rail 28 and one attached to it screwed angle profile rail 32.

The two profile rails 30 and 32 act as closure plates, as will be explained further below.

As shown in Fig. 6, the U-profile rail 26 has a special cross section with a lower leg 34 and an upper leg

38, a protrusion projecting in the direction of the other leg being formed on the outer inner ends of the two legs 34 and 38. 6, the projection 36 is shown at the end of the lower leg 34. A receiving slot 40 is formed in the upper leg 38 of the U-shaped rail 26. The width of this receiving slot 40 is slightly larger than the width of a cross bar 14. One end of a cross bar 14 is shown in FIG. 9. On the bottom is on

A recess 52 is formed at the end of the cross bar 14.

As can be seen in FIG. 7, the end of the cross bar 14 shown in FIG. 9 is inserted into the receiving slot 40 from above, so that the projection 36 at the end of the lower leg 34 into the

Recess 42 of the cross bar 14 engages. The position of the cross bar 15 with respect to the profile rail 26 is thus largely fixed. In the installed position, the upper side 141 of the cross bar 14 is aligned with the upper side 161 of the U profile rail.

It is easy to imagine how the other end of the cross bar 14, not shown in FIG. 7, is inserted into the receiving slot of the U-shaped rail 28 shown on the right in FIG. 3, which belongs in pairs to the receiving slot 40 according to FIG. 6. The receiving slot 40 shown in FIG. 6 is present n times both on the upper longitudinal bar 6 and on the lower longitudinal bar 8 of the receiving frame, so that two adjacent cross bars 14 can be spaced apart from one another by an integer multiple of n .

After a plurality of cross bars 14 are inserted into the receiving frame 4 with the desired spacing between two adjacent cross bars, the angle profile rail 30 or 32 is screwed onto the U-profile rail 26 and the U-profile rail 28 in FIG. 3 as a closure plate. 8 are for this purpose

Screws 70 and 72 indicated. So that the cross bars are firmly received in the longitudinal strips 6 and 8; they can no longer move in any direction. As can be seen from the illustration according to FIG. 8, the upper sides of the longitudinal strips 6 and 8 are flush with the upper side of the device support plate shown in FIG. 8.

In Fig. 8 is only a single device carrier plate with the keyboard 20 and

Adjustment buttons 21 shown. Of course, this device support plate 50 is followed closely by further device support plates with other built-in devices. In such places where there is no built-in device, a blind front plate is provided so that the entire upper side of the mounting frame is closed.

On the underside of the mounting frame below the built-in devices are cables and cable connections that lead from the built-in devices to other devices, connectors and the like. These elements are omitted from the drawing so as not to overload the drawing.

It can be seen that with the aid of the arrangement according to the invention, retrofitting, retrofitting, maintenance and repair of the operating and work console 2 shown in FIG. 1 is possible without the entire

Recording frame 4 must be released from the desk. It is only necessary to unscrew the two angle profile rails 30 and 32 serving as closure plates in FIG. 3. Then you can take out the relevant devices and the associated crossbars to replace or move them.

Claims

Expectations

1. mounting frame for built-in devices of operating and work consoles (2), with - a right-angled outer main frame, consisting of an upper and a lower longitudinal bar (6,8) and a left and a right transverse bar (12,10), at least one parallel cross rungs (14a, 14b) extending to the transverse strips (12, 10); and - fixing means located on the cross rung (14a, 14b ...)

(60), on which a built-in device (20, 22, 24) or a front plate corresponding to the built-in size of the built-in device can be attached, characterized in that the upper and lower longitudinal strips (6, 8) each have one

Have a plurality of receiving slots (40), of which one receiving slot in the upper and one receiving slot in the lower longitudinal bar (6, 8) are assigned to one another in pairs and for receiving an upper or a lower end of a cross bar (14a, 14b .. .) are trained.

2. receiving frame according to claim 1, characterized in that the upper and the lower longitudinal bar (6) with respect to the perpendicular to the receiving frame extending longitudinal center plane (M) are symmetrical.

3. receiving frame according to claim 1 or 2, characterized in that the receiving slots (40) in each longitudinal bar (6.8) for

Open on the front side and can be covered at least partially by a closure plate (30, 32) extending over the entire length of the associated longitudinal bar.

4. receiving frame according to one of claims 1 to 3, characterized in that the longitudinal strips (6,8) are preferably made of light metal U-shaped rails (26,28) are formed, the openings of which face each other, and that in the front

Legs (38) of the respective U-profile rail, the receiving slots (40) are formed.

5. receiving frame according to claim 4, characterized in that the dimensions of the receiving slots are each chosen such that the ends of a cross rung (14a, 14b ...) can only be used in the paired receiving slots.

6. A receiving frame according to claim 4 or 5, characterized in that at least the leg (34) of the U-profile rail (26, 28) facing away from the front of the receiving frame (4) has a projection (36) projecting in the direction of the opposite receiving slot (40) ) which engages in a complementary recess (42) in the end section of the cross bar (14).