CN1353879A

CN1353879A - Cable support apparatus

Info

Publication number: CN1353879A
Application number: CN 00808448
Authority: CN
Inventors: G·阿贝里; T·伊瓦松
Original assignee: Telefonaktiebolaget LM Ericsson AB
Current assignee: Telefonaktiebolaget LM Ericsson AB
Priority date: 1999-06-04
Filing date: 2000-06-02
Publication date: 2002-06-12
Also published as: AU5436000A; BR0011258A; EP1203430A1; MXPA01011608A; WO2000076042A1

Abstract

The invention relates to cable support for use in a structure (18) for accommodating electronic equipment (19), for example printed circuit boards in a subrack. The support comprising an elongate rail (10) with cable guiding surfaces (11, 12) for guiding a cable (20) along the structure. At least one pair of curved fingers (13, 14) are arranged with mutual interval at an angle to the longitudinal axis of said rail. A tongue (16) is located in the interval between two adjacent fingers (13, 14) and it is provided with retaining means (17) for cooperation with a cable strap (22).

Description

A kind of supporting structure of cable

Technical field

The present invention relates to cable bearer, can be applicable to the placement electronic equipment, as the printed circuit board (PCB) on the sub-frame, structure on.Support comprises having along the elongate guide rails of the cable guiding surface of described structure pilot cable (20) and at least one pair of to have the lug of total bending at interval, and it is arranged on the longitudinal axis position at an angle with described guide rail.

Background technology

Printed circuit board (PCB) is through being normally placed on the sub-frame, and framework then is fixed on bigger support frame, i.e. frame or housing.Cable passage can be used on that the cable to the connecting circuit plate is supported on frame or the housing.The mechanical support that also needs to provide other is used for the cable between the tie point of frames cable passage and wiring board front.These cables are very responsive to sharp-pointed bending, this means that mechanical support also should have big bending radius.

Prior art solutions comprises uses the cable support that has guide tabs with the printed circuit board (PCB) of planning to be connected correct location to be arranged to guarantee each cable on horizontal plane.Yet, use these lugs can only be used for and the wiring board horizontal alignment, mean that cable is easy to bending in supports outer, that is, in fact the outlet between two lugs can be pivoted cable in any direction.Also have, use top cover through such support top of being everlasting, this needs more space and makes installation more difficult.

Other solution is to use cable tie that cable is tied to together, does not so just need extra mechanical support, or near the strutting piece any.The number of cables of An Zhuaning depends on the technology of equipment installation personnel by this way, also depends on the time to this work.The cable circle band of Chan Shenging is normally visible like this.

Therefore on sub-frame, need cable bearer, so that the space of many cables is provided and can fixes to each cable.The cable bearer that does not need the compactness in a lot of spaces can be favourable, is particularly having only several or do not have under the situation that cable uses.Cable bearer preferably can make things convenient for Fast Installation so that provide convenience for equipment operator's work.

Summary of the invention

Therefore, needed is a kind of cable bearer that can reduce the problem of introducing above.The feature that cable bearer according to the present invention has is the interval of tenon mouth between two adjacent lugs.

In the specific embodiment of cable bearer, the tenon mouth is provided with the fixed component that cooperates with cable tie.This fixed component can be the silver that is used for cable tie that forms in the end of tenon mouth.

According to preferred embodiment of the present invention, retaining member can assign to form by horizontal protuberance in the end of tenon mouth.

Guide rail can have L shaped cross section.Lug can be positioned at transverse to guide rail direction longitudinally.Lug can be provided with from the bandy finger tip of the longitudinal axis of lug.

L shaped guide rail is preferably by the cable trough of lug and tenon interruption-forming U-shaped.The bottom of U-shaped cable trough can be along lug and the tenon mouth opening direction slight bending at U-shaped.

Guide rail can combine with the marginal portion of sub-frame and form is the cable trough of closed cross-section substantially.

Description of drawings

Below will be and carry out with reference to the accompanying drawings this aspect is further introduced by nonrestrictive mode, wherein:

Fig. 1 is the front view according to the cable bearer guide rail of first embodiment of the invention;

Fig. 2 is the view that is similar to Fig. 1;

Fig. 3 is the cutaway view along Fig. 1 midship section III-III;

Fig. 4 is the perspective view that is provided with according to the sub-frame of the cable bearer of second embodiment of the invention;

Fig. 5 is the front view of Fig. 4 guide rail that has the cable of four installations;

Fig. 6 is the view that is similar to Fig. 5.

The specific embodiment of the present invention

Fig. 1-3 has shown the cable support rail 10 according to first embodiment of the invention.Guide rail 10 has rear wall 11, and base plate 12 has formed elongated U-lag with relative crooked side.The side comprises the lug 13 that has finger tip 14.The two ends of guide rail are provided with attaching clamp 15, can be connected with sub-frame.

Lug 13 is arranged in the side of guide rail with identical distance.The tenon mouth 16 that has fixed component 17 is positioned at each interval.Fixed component 17 has horizontal projection in the outer end of tenon mouth

Fig. 4 has shown the cable support rail according to second embodiment of the invention, and guide rail is horizontally fixed on the bottom of sub-frame 18.Printed circuit board (PCB) 19 is vertically fixed on the inside of sub-frame 18, and cable 20 is connected to wiring board by connector 21.

Fig. 5 has shown that use nylon cable tie 22 is fixed to tenon mouth 16 between the

lug

13,14 with cable 20.Front at cable support rail 10 can form cable strap loop around cable, the frenulum circle is pushed between two

adjacent lugs

13,14 then, is positioned at the back of two tenon mouth projections 17 until this circle.Can fasten cable tie now cable is pressed on the tenon mouth member, this member has slight inclination on the direction of wiring board.The time that this process need is considerably less, the result is that cable can have guiding correctly on the direction of wiring board.

Fig. 6 has shown the situation of cable before quilt is fastened.Lug blocks supported cable, and between fastening preceding or interim the adjustment period cable is fixed.Like this, even cable also is not fixed on the tenon mouth,

lug

13,14 just can prevent that cable from dropping to the outside of cable support rail.

The main difference of the guide rail embodiment of Fig. 1-3 and Fig. 4-6 is finger tip 14 broads of the lug 13 among the embodiment of Fig. 4-6.The surface of finger tip can be provided with trade mark 23 and mark as shown in Figure 5, as mark of PBA location number etc.

The invention is not restricted to the embodiments described, can carry out many repairing within the scope of the claims.For example, guide rail can have different shapes.Lug also can be different, and the fixed component of other types also can be used in the tenon mouth and replace two projections 17, promptly can adopt a projection with the opposite direction bending of the finger tip 14 of lug.

Claims

1. cable bearer, can be applicable to and hold electronic equipment (19), as the printed circuit board (PCB) on the sub-frame, structure (18) on, described support comprises having along the elongate guide rails (10) of the cable guiding surface (11,12) of described structure pilot cable (20) and at least one pair of to have the lug (13 of total bending at interval, 14), it is arranged on the longitudinal axis position at an angle with described guide rail;

It is characterized in that a tenon mouth (16) is positioned at two intervals between the adjacent described lug (13,14), and the fixed component (17) that cooperates with the frenulum (22) of cable is arranged on described tenon mouth.

2. cable bearer according to claim 1 is characterized in that, described fixed component is the silver that utilizes at the described cable tie of confession (22) that the end of described tenon mouth (16) forms.

3. cable bearer according to claim 1 and 2 is characterized in that, described fixed component is the horizontal projection (17) that forms in described tenon mouth (16) end.

4. each described cable bearer in requiring according to aforesaid right is characterized in that described guide rail (10) has L shaped cross section.

5. cable bearer according to claim 4 is characterized in that, described lug (13,14) is positioned at transverse to described guide rail (10) position longitudinally.

6. cable bearer according to claim 5 is characterized in that, described lug (13) is provided with the finger tip (14) of the longitudinal axis bending of described relatively lug.

7. cable bearer according to claim 6 is characterized in that, described L shaped guide rail (10) has formed the cable trough of U-shaped by described lug (13,14) and described tenon mouth (16,17).

8. cable bearer according to claim 7 is characterized in that, the opening direction slight bending of the bottom of described U-lag along described lug (13,14) and described tenon mouth (16,17) along described U-lag.

9. according to each described cable bearer among the claim 1-8 of front, it is characterized in that it is the cable trough of base closed that described guide rail (10) is fit to cooperate the formation cross section with the marginal portion of sub-frame (18).