JPS6023689A - Device for clamping cable in releasable manner - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a device for releasably tightening cables or the like, especially in electrically driven hand-held machines.

In known devices of this type, an unassembled bridge made of sheet steel or synthetic resin is tightly clamped onto a cable vent by means of two clamping screws. Assembling such a tightening system 1c requires special manual dexterity and practice. This is because in this case the hand needs to perform many movements at the same time. The position of the connecting conductor must be secured, the bridge must be aligned and pressed against the tapped hole adjacent to the cable vent, and at the same time the first tightening screw must be held vertically in the tapped hole. This means that the clamping screw can be screwed in with a screwdriver without tilting. If the screwdriver slips and comes off, the hand holding it may be injured. It is also possible for the screw to be insufficiently guided and be screwed in at an angle, thereby damaging the screw made of synthetic resin. Furthermore, when assembling with such a system, care must be taken not to drive the first screw too deep. This is because otherwise the reaction end of the bridge would slope too high to allow the second screw to be screwed in. For this purpose, the two clamping screws must be screwed in little by little alternately. According to such a system (according to The cost required for such work is expensive.In addition, two screw holes, two screws, and one bridge must be provided, making the assembly process time consuming and expensive.

Problems to be Solved by the Invention The problem to be solved by the invention is to easily and reliably assemble Gτ without the need for additional auxiliary means. 11. We provide a device for tightening.

Means for Solving the Problems According to the present invention, the bridge and the cable bed are connected by an open hinge, and the free end of the bridge is provided with a retainer that is screwed into the cable bed. Solved by having a through hole for the screw.

According to the configuration of the invention, by suspending one side of the bridge on an open hinge, screws and tapped holes are omitted, and the bridge is provided with an immediate position in which to screw in the retaining screw. It will be done.

Advantageous embodiments and improvements of the device according to the invention are possible by means of the measures specified in the dependent claims. Particularly advantageously, the bridge is made of synthetic resin and has a lip which extends into the hinge (curvature) of the bridge and forms part of the open hinge.

Embodiment Next, the 414th structure of the present invention will be specifically explained with reference to the embodiment shown in the drawings.

A cable bed 3 is arranged in the housing 1 to which the cable 2 is to be tightened. This cable bed 3
A hinge receiving part 4 (first hinge part) as the casing side part of the open hinge is assigned to the housing. The hinge bend of the bridge 6 is designated by 5 and forms the second hinge part of the open hinges 4,5. A threaded hole 7 is provided in the casing 1 on the cable end 4+ opposite the hinge receiver 4. This threaded hole 7 is used for screwing in a retaining screw 8. , the end Ffl+ of the bridge 6 on the opposite side of the hinge curved portion 5 is penetratingly engaged with the through hole 9.For example, the bridge 6 made of synthetic resin has a lip 10. The hinge curvature extends to a position beyond the through hole 9.The bridge 6 has a tensioning protuberance 11 on the cable 2 side without interfering with the pivotability of the open hinges 4, 5. Reply to
The part of the hinge receptacle 4 which is bridged by the lip '10 has a cutout 12 so that O can be extended across the hinge bend 5. The introduction ramp 13 facilitates the insertion of the bridge 6 into the hinge receiver 4. In the illustrated embodiment, the casing is designed in the form of a wedge and has an opening 14 facing the hinge receptacle 4 . In this way, the undercut of the hinge receptacle 4 necessary for holding the bridge 6 is produced. This is because the undercut portion of the hinge receptacle 4 can be accessed through the opening 14 which is present in the direction of the molding of the injection molding tool. According to Figure 2, 0
It can be seen that the openings 11 and 14 are closed to the outside by the assembled and completed bridge.

This prevents voltages from being conducted out from the possibly defective cable through the bridge 6 and the contaminated opening 14 into the hands of the operator. Due to the provision of the lip 10 extending from the hinge curved portion 5 beyond the through hole 9, the bridge 6 has rigidity over its entire length.

In order to tighten the cable 2 in the cable bed 3, the cable 2 is first installed in this cable bed 3. The bridge 6 is then connected to the cable vent 3 and thus to the casing 1 by hooking the hinge bend 5 into the hinge receiver 4 forming an open hinge. When the hinge curved portion b5 is hooked, the bridge 6 is forcibly placed in a position where the through hole 9 is directly in line with the screw hole 7. When the retaining screw inserted into the through hole 9 is screwed into the spring hole 7, it is strongly held in a vertical state. This allows the retaining screw 1 to be screwed in easily and without damaging the threads of the screw hole 7.

This device not only simplifies assembly, but also simplifies the after-sales service that may be required. There is no chance of parts falling apart when replacing the cable. This is because the very long part of the bridge 6 is held pivotably in the hinge receptacle 4. The screwing-in operation of the retaining screw 8 is well guided by the through hole 9 of the bridge 6. This is done very easily by keeping the ridges in place.This completely avoids damage to the ridges.

Effects As described above, the device for releasably tightening a cable according to the structure of the present invention has the advantage that a simplified and reliable tightening operation can be obtained without any additional auxiliary means. . Furthermore, by omitting the second screw hole, the required number of 21!41 was reduced.

[Brief explanation of drawings]

1 is a partial sectional view of an embodiment of the device according to the invention with the bridge integrated into the hinge not yet screwed in; FIG. 2 is a partial sectional view with the bridge screwed in by means of a retaining screw. FIG. 6 is a plan view of FIG. 2.

Claims (1)

[Claims] 1. A device for releasably tightening a cable or the like, comprising a cable bed molded at the tightening point and a bridge bridging the cable at the tightening point. In the bridge (6
) and cable vent (3) are open hinges (4, 5)
, characterized in that the free end of said bridge (6) has a through hole (9) for a retaining screw 8) screwed into said cable bed (3). , a device for tightening the cable in a release position. 2 front i+d Bridge (6) is reinforcement part or lip (10)
2. The device of claim 1, reinforced by: Device according to claim 1, characterized in that the bridge (6) has a tightening ridge (11). 4. The device according to claim 1, wherein the bridge (6) is manufactured from tW steel plate. 5. The bridge (6) is made of synthetic resin;
An apparatus according to claim 1. 6. Cable bed (3) Hinge part of III (4
2. Device according to claim 1, characterized in that the inlet opening (13) has an inlet ramp (13) at its inlet opening. Z The casing (1) with a cable bed (3) is constructed in the form of a shell and has an opening (14) in the hinge receptacle of the open hinge (4, 5) in the direction of the mold removal of the injection molding tool. said opening (14
) is adapted to be closed by a bridge (6) during assembly. 8. Casing (1) with cable bed (3)
The hinge receptacles of the open hinges (4, 5) are located in the unmolding direction of the injection molding tool, so that this hinge receptacle can be molded in one piece without a slider. Claim 1, paragraph 8
Own equipment. 9. Reply (10) of Bridge (6) is Bridge (6)
) The bending sound b1 of the hinge molded in the open type hinge (4, 5) extends to the hinge part molded in the bridge (6), and the cable bed υH open type hinge (4, 5> Cable Beno 1- (
2. Device according to claim 1, characterized in that the hinge part molded in 3) is cut out according to said lip (10).