Secured equipment carrier holding device and rail vehicle with an equipment carrier holding device

Abstract

An equipment carrier holding device has a housing with a door. A screwing block is arranged in the housing. A clamping block and a fastening screw fix a fastening link of an item of equipment between the clamping block and the screwing block. The clamping block is positioned in relation to the door such that, in the event of incomplete arresting of the fastening screw, the fastening screw forms a mechanical barrier to complete closing of the door. A rail vehicle is also described which is equipped with such an equipment carrier holding device.

Claims

1. An equipment carrier holding device, comprising: a housing with a door; a screwing block disposed in said housing; a clamping block; a fastening screw for fixing a fastening link of an equipment carrier between said clamping block and said screwing block; and a swivel bearing fastened to said screwing block and configured to pivotally connect said clamping block to said screwing block; said clamping block being positioned relative to said door such that, when said fastening screw is incompletely arrested, said fastening screw forms a mechanical barrier to a complete closing of said door.

2. The equipment carrier holding device according to claim 1, wherein said fastening screw has a shaft end with an external thread and said screwing block has an internal thread configured to mesh with said external thread of said fastening screw.

3. The equipment carrier holding device according to claim 2, wherein said clamping block has an internal thread which is formed as a captive retaining device and which corresponds to said external thread of said fastening screw and which is configured to prevent falling out of said fastening screw from said clamping block.

4. The equipment carrier holding device according to claim 3, wherein said internal thread is formed on a side of said clamping block that is facing away from said screwing block and is dimensioned to match said external thread of said fastening screw.

5. The equipment carrier holding device according to claim 1, wherein said clamping block has a leg which corresponds to said swivel bearing and is pivotally connected to said swivel bearing.

6. The equipment carrier holding device according to claim 3, wherein said screwing block, on a side facing said door and said clamping block, is formed with first bore containing said internal thread of said screwing block, and said clamping block has a second bore, which in a fixed state is in line with said first bore and contains said internal thread of said clamping block.

7. The equipment carrier holding device according to claim 6, wherein, along a longitudinal direction of said first bore, said internal thread of said screwing block is only formed on part of said first bore and in an inner region that is spaced apart from an outer side of said screwing block.

8. The equipment carrier holding device according to claim 6, wherein, along a longitudinal direction of said second bore, said internal thread of said clamping block is only formed on part of said second bore.

9. A rail vehicle, comprising: an equipment carrier holding device according to claim 1; and an item of equipment disposed and fixed in said equipment carrier holding device.

Description

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWING

(1) FIG. 1 shows a cross-sectional view of an equipment carrier holding device according to an exemplary embodiment of the invention in the closed state;

(2) FIG. 2 shows a schematic cross-sectional view of the equipment carrier holding device shown in FIG. 1 in the open state;

(3) FIG. 3 shows a schematic side view of the arrangement shown in FIG. 1 and FIG. 2 with an incompletely screwed-in fastening screw according to an exemplary embodiment of the invention;

(4) FIG. 4 shows a schematic side view of the arrangement shown in FIGS. 1 to 3 with the fastening screw only pushed into the bore of the clamping block;

(5) FIG. 5 shows a schematic side view of the arrangement shown in FIGS. 1 to 4 with the clamping block swung up; and

(6) FIG. 6 shows a schematic side view of the arrangement shown in FIGS. 1 to 5 with the equipment carrier taken out.

DETAILED DESCRIPTION OF THE INVENTION

(7) Referring now to the figures of the drawing in detail and first, in particular, to FIG. 1 thereof, there is shown a cross-sectional view of an equipment carrier holding device 10 according to an exemplary embodiment of the invention. The equipment carrier holding device 10 comprises a housing 1 with a door 2. In the housing 1 there is a screwing block 3, on which a fastening link 7 of an item of equipment to be held (not shown) is fixed with the aid of a clamping block 4. The clamping block 4 is mounted such that it can swivel in relation to the screwing block 3. For this purpose, a leg 11 of the clamping block 4 is connected with the aid of a pin Sa to a swivel bearing 5, which is fixed on the screwing block 3 with the aid of screws 5b. The clamping block 4 can be fixed on the screwing block 3 with the aid of a fastening screw 6 together with the fastening link 7. For this purpose, the fastening screw 6 has at its shaft end 6a an external thread 6b. Furthermore, the screwing block 3 comprises a bore 12 with an internal thread 8, into which the thread 6b of the fastening screw 6 can be screwed. The clamping block 4 is also formed with a bore 13, which in the attached state of the clamping block 4 is in line with the bore 12 of the screwing block 3. On the side of the bore 13 that lies in the direction of the door or in the direction of the screw head, it has a retaining thread 8, by which falling out of the fastening screw 6 is prevented when the equipment carrier holding device 10 is open, that is to say in the state in which the clamping block 4 releases the fastening link 7. Also arranged between the screw head 6d of the fastening screw 6 and the clamping block 4 is a washer 6c, in order to distribute the force of the screw head 6d over a greater area.

(8) In FIG. 2, the equipment carrier holding device 10 illustrated in FIG. 1 is shown in the opened state. In this case, the clamping block 4 has been swung away from the fastening link 7, so that the fastening link 7 can be removed. In the swung-up state, the fastening screw 6 has been unscrewed from the internal thread 8 of the bore 12 (cf. FIG. 1) of the screwing block 3 and due to gravitational force falls through the bore 13 of the clamping block until the external thread 6b of the fastening screw 6 meets the internal thread or retaining thread 8 of the clamping block 4 and the fastening screw 6 is hindered from falling out from the bore 13 of the clamping block 4 by the interlocking engagement with the internal thread 8 of the clamping block 4.

(9) In FIG. 3, a schematic side view of the arrangement 10 shown in FIG. 1 and FIG. 2 with an incompletely screwed-in fastening screw 6 according to an exemplary embodiment of the invention is shown. In other words, the fastening screw 6 has not been fully screwed into the screwing block 3 for the equipment carrier 7. Such a state may occur for example due to an oversight on the part of the maintenance personnel, if the fastening screw 6 has inadvertently not been screwed into the screwing block 3 quite completely. In this situation, the protruding fastening screw 6 keeps the door 2 of the arrangement 10 slightly open, so that the maintenance personnel are warned both by the appearance and the mechanical state that the equipment carrier 7 is not properly fixed.

(10) In FIG. 4, a schematic side view of the arrangement 10 shown in FIGS. 1 to 3, with the fastening screw 6 only pushed into the bore 13 (see FIG. 1) of the clamping block 4, is shown. In this situation, the door 2 of the arrangement 10 is wide open, so that the maintenance personnel are warned of the defective attachment.

(11) Since the equipment carrier 7 in this situation is no longer held between the clamping block 4 and the screwing block 3 by frictional engagement, this can lead to the situation shown in FIG. 5, in which the clamping block 4 is swung away from the equipment carrier 7 and the fastening screw 6, drawn by gravitational force, falls through in the downward direction until it is hindered from falling out from the clamping block 4 by the captive retaining device that is formed by the internal thread 9 (see FIG. 1) of the clamping block 4. The situation shown in FIG. 5 also occurs when the maintenance personnel would like to remove the equipment carrier 7, and for this have to swing down the clamping block 4.

(12) FIG. 6 illustrates a situation in which the equipment carrier 7 is removed from the equipment carrier holding device 10 with the clamping block 4 swung away and the fastening screw 6 held in the captive retaining device 9 of the clamping block 4.

(13) Finally, it is once again pointed out that the previously described methods and devices are merely preferred exemplary embodiments of the invention and that the invention can be varied those of skill in the pertinent art without departing from the scope of the invention, to the extent prescribed by the claims. It is also pointed out for the sake of completeness that the use of the indefinite article “a” or “an” does not exclude the possibility that the features concerned may also be present in multiple form. Similarly, the term “unit” does not exclude the possibility that it consists of multiple components, which may possibly also be spatially distributed.