FINGER PROTECTION SECTION WITH INTEGRATED SWITCHING SYSTEM

Abstract

An elastically resilient hollow section has an electrically operating switch rail that is fixedly integrated in a chamber of the hollow section. The switch rail has a jacket composed of an elastomer, and is actuable on a deformation of the hollow section. The switch rail projects freely from the hollow section at least one end of the hollow section.

Claims

1. An elastically resilient hollow section with an electrically operating switch rail, comprising: an elastically resilient hollow section having a chamber defined therein; and an electrically operating switch rail fixedly integrated in the chamber of the hollow section such that the switch rail is actuable on a deformation of the hollow section, the switch rail having a jacket composed of elastomer; wherein the switch rail projects freely from at least one end of the hollow section.

2. The elastically resilient hollow section with the switch rail in accordance with claim 1, wherein: the switch rail has a projecting end having live stranded wires; further comprising an end resistor connected to the live stranded wires in a region of the projecting end.

3. The elastically resilient hollow section with the switch rail in accordance with claim 2, further comprising: an end piece connectable with material continuity to the jacket of the switch rail; wherein the live stranded wires are insulated in at least a moisture-proof manner in the region of the end resistor by the end piece.

4. The elastically resilient hollow section with the switch rail in accordance with claim 1, wherein: the switch rail has a projecting end having live stranded wires; further comprising a connector cable connected to the live stranded wires in a region of the projecting end.

5. The elastically resilient hollow section with the switch rail in accordance with claim 4, wherein the live stranded wires of the switch rail (10) are insulated in at least a moisture-proof manner in the region of their connection to the connector cable.

6. The elastically resilient hollow section with the switch rail in accordance with claim 1, further comprising a termination section for the hollow section disposed at first and/or second ends of the hollow section.

7. The elastically resilient hollow section with the switch rail in accordance with claim 6, wherein the termination section has a switch rail chamber into which the switch rail projects.

8. The elastically resilient hollow section with the switch rail in accordance with claim 1, wherein the hollow section is integrally formed with the switch rail having the jacket and is manufactured by coextrusion.

9. A method of manufacturing a finger guard section having an elastically resilient hollow section composed of an elastomer, having an electrically operating switch rail that is arranged in a chamber of the hollow section and that has a jacket composed of elastomer, the method comprising: coextrusion of the hollow section together with the switch rail; cutting free the jacket of the switch rail to form a first and/or second end of the switch rail projecting freely from the hollow section; and assembling the switch rail at said first and/or second end of the switch rail to form the finger guard section.

10. The method in accordance with claim 9, further comprising exposing live stranded wires of the switch rail in a region of their first end for connection to an end resistor.

11. The method in accordance with claim 9, further comprising insulating the live stranded wires in the region of the end resistor by an end piece connectable with material continuity to the jacket of the switch rail.

12. The method in accordance with claim 9, further comprising connecting the live stranded wires of the switch rail to a connector cable in the region of its second end of the hollow section.

13. The method in accordance with claim 12, further comprising insulating the live stranded wires of the switch rail in a moisture-proof manner in the region of their connection to the connector cable.

14. A door assembly; comprising: a door having an edge; and an elastically resilient hollow section with an electrically operating switch rail disposed at the door edge to form a finger guard section, including; an elastically resilient hollow section having a chamber defined therein; and an electrically operating switch rail fixedly integrated in the chamber of the hollow section such that the switch rail is actuable on a deformation of the hollow section, the switch rail having a jacket composed of elastomer; wherein the switch rail projects freely from at least one end of the hollow section.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Further measures improving the invention will be shown in more detail below together with the description of preferred embodiments of the invention with reference to the Figures. There is shown:

[0027] FIG. 1 is an isometric representation of a hollow section having a switch rail that is arranged in a chamber of the hollow section and that projects from the hollow section at both ends;

[0028] FIG. 2 is a cross-sectional view through the hollow section with the switch rail;

[0029] FIGS. 3a-3g are drawings showing worksteps for assembling a hollow section and of a switch rail at its first end to which stranded wires of the switch rail are connected by an end resistor;

[0030] FIGS. 4a-4g are drawings showing the second end of the switch rail, with here the stranded wires of the switch rail being connected to a cable for connection to a motor control; and

[0031] FIG. 5 is a schematic illustration of a door with a frame portion.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0032] In accordance with FIG. 1, a switch rail 10 is received in a hollow section 1 or is integrally formed therewith, with the switch rail 10 extending through a chamber 3 of the hollow section 1 and freely projecting from the hollow section 1 at both ends thereof. The switch rail 10 has, as results from the sectional representation in accordance with FIG. 2, a jacket 11 composed of an elastomer, with a hollow space 13 being located in the jacket 11. Two electrically conductive contact cushions 14, 15 that each have a power stranded wire (not shown) that are spaced apart from one another in the hollow space 13. On contact of the two electrically conductive contact cushions, a signal to open the door is generated to the motor control.

[0033] Referring to all Figures, the switch rail 10 has an end piece 20 at its first end that terminates the open end of the jacket 11 of the switch rail 10 by the end resistor 17 in a moisture-proof manner. A connector cable 16 that is connected to the stranded wires in the contact cushions 14, 15, in the hollow space 13 is provided at the opposite second end of the switch rail 10. This cable 16 with the two stranded wires (not shown) is connected in a moisture-proof manner to the jacket 11 of the switch rail 10 by a cap 21.

[0034] In accordance with FIGS. 3a, 4a the hollow section having the inwardly disposed switch rail (not shown) is designated by 1.

[0035] As results from FIGS. 3b, 4b, the hollow section 1 is cut away around the jacket 11 of the switch rail 10 in the end region of the switch rail 10 so that an overhang from the hollow section 1 results at its first end and at its second end.

[0036] FIGS. 3c and 4c show the exposure of the two stranded wires 16a, 16b of the switch rail 10, with the stranded wires 16a, 16b being connected to one another by an end resistor 17 in the region of the first end of the switch rail 10 (FIG. 3d).

[0037] As results from FIG. 4d, provision is made at the oppositely disposed second end of the switch rail 10 that the exposed stranded wires 16a, 16b of the switch rail 10 are connected to a cable 16. The cable 16 can in particular be connected to the motor control for the sliding door (not shown).

[0038] FIG. 3e in turn shows the region of the first end of the switch rail 10, with the two stranded wires 16a, 16b and the end resistor 17 being encapsulated in a moisture-proof manner by an end piece 20 that is connected in a moisture-proof manner to the jacket 11 of the switch rail 10.

[0039] It can be recognized from FIG. 4e that the two stranded wires 16a, 16b are insulated in a moisture-proof manner by a cap 21 that is connected in a moisture-proof manner to the jacket 11 of the switch rail 10 by way of vulcanization or by adhesive bonding.

[0040] FIG. 3f shows the hollow section 1 having a termination section 26 arranged at an end side thereat, with a cover 26 additionally being adhesively bonded, for example, to the termination section 25 to terminate the termination section 25 in a moisture-proof manner, said termination section 25 being able to be formed in a similar or in the same manner as the hollow section 1 in cross-section. As shown in FIG. 4f, just such a termination section 25 having just such a cover 26 is provided at the oppositely disposed end of the hollow section 1. The termination section 25 has a switch rail chamber 29 for receiving the end of the switch rail 10 projecting freely from the hollow section 1.

[0041] As results from FIGS. 3g and 4g, the termination section 25 can have a frame section 28 that can, e.g. be injected onto the termination section 25 having the cover 26 or can be adhesively bonded thereto. In this respect, the connector cable 16 can be conducted through the frame section 28 to the motor control (not shown).

[0042] Only the first end of the switch rail 10 is shown by way of example in FIGS. 3g; 4g.

[0043] FIG. 5 schematically illustrates a door 30, which may be a sliding door such as for bus or rail vehicle. A hollow section 1 as described above may be disposed at the edge of the door 20 with the switch rail 10 projecting from at least one end of the hollow section.

REFERENCE NUMERAL LIST

[0044] hollow section [0045] chamber [0046] switch rail [0047] jacket [0048] hollow space [0049] contact cushion [0050] contact cushion [0051] connector cable [0052] 16a stranded wire [0053] 16b stranded wire [0054] end resistor [0055] end piece [0056] cap [0057] termination section [0058] cover [0059] frame section [0060] switch rail chamber