CN1543695A

CN1543695A - Cord clamp

Info

Publication number: CN1543695A
Application number: CNA028162242A
Authority: CN
Inventors: D・卡尔; D·卡尔
Original assignee: Delta Electrical Ltd
Current assignee: Eaton Electric Ltd
Priority date: 2001-07-19
Filing date: 2002-07-16
Publication date: 2004-11-03
Anticipated expiration: 2022-07-16
Also published as: WO2003009428A1; ZA200401039B; CN100536247C; EP1407518A1; BG65730B1; BG108580A

Abstract

A cable grip for an electrical appliance comprising a cable entry path having a first, fixed abutment member on one side of the path, and a second, flexible arm member on the opposite side of the path, which is provided with an adjustable clamping means, to urge it in a direction towards the fixed member, so as to clamp a cable between them.

Description

The electric wire folder

Technical field

The present invention relates to be used for attaching plug, socket, or the cable of other electrical equipment or Electric wire clamp (cord grip), and relate to a kind of clamping device that can clamp cables with different diameters reliably especially.

Background technology

For the ease of the wiring of electrical equipment, and, various types of cable-clamping devices had been proposed in the past especially in order more easily to insert one () line in the Electric wire clamp and to keep this line to be moved reliably simultaneously with after preventing.

Many this existing apparatus rely on the use of the flexible arm on the one or both sides that are positioned at cable inlet, and typically, at least one in these arms is inside, promptly extends to the inside of plug, and have and band tooth surface that electric wire (cord, cord) engages to resist any outside pulling.But this device generally has following shortcoming: owing to depend on the opening size of inlet, they can only be used for limited cable dimension scope, and they are reliable not as comprising the device that clamps helical member.

Summary of the invention

Therefore, the present invention attempts to provide a kind of cable and while that can clamp the diameter range broad reliably still can easily these cables be inserted plugs to finish the Electric wire clamp of assembling.

Therefore, the invention provides a kind of Electric wire clamp that is used to comprise the electrical equipment of a cable inlet path, these anchor clamps have one in fixing second arm member on abutting element and the opposite side at path of first on the side of path, and these anchor clamps are provided with one and clamp mechanism with at the first fixing clamping cables between abutting element and second arm member to the scalable that described fixedly abutting element direction promotes this arm spare.

Preferably, this flexible piece comprises that one is parallel to generally that cable through extends and the one end is fixed on arm in the electrical equipment, simultaneously, the other end of this arm be freely and can with clamp helical member engage with this arm free end to fixedly abutting element direction promotion.

In a preferred embodiment of the present invention, fixture has a band ridge or band ledge surface, and wherein, this ridge is along extending with the rectangular direction of cable through; Simultaneously, flexible piece has a band ridge or band ledge surface, and this ridge or step are parallel to cable through and extend on this surface.Like this, not only can guarantee to keep reliably cable directly to be pulled out or be pushed into plug or electrical equipment, can also guarantee that cable is not twisted, and should lead be separated distortion with their joint to prevent cable.

Alternatively, ridge can be arranged on the flexible piece and with step and be arranged on the fixture, perhaps can make one or two element be provided with step, and in these steps each all has the surface of band transverse ridge.

Description of drawings

One embodiment of the invention are described by example referring now to accompanying drawing:

Fig. 1 to Fig. 5 is the example of the Electric wire clamp of various known types;

Fig. 6 is the vertical view according to Electric wire clamp structure of the present invention;

Fig. 7 is the cross section of being got along the A-A line of Fig. 6;

Fig. 8 is the stereogram of the Electric wire clamp among Fig. 6 and Fig. 7; With

Fig. 9 is the partial perspective view of optional embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED

At first be referenced as Fig. 1 to Fig. 5 of structure diagram of the Electric wire clamp of various known types, as can be seen, these anchor clamps generally can be divided into the type shown in two classes: Fig. 1 and Fig. 2, wherein, by helical member cable clip are tightened to the position; With the type shown in Fig. 3 to Fig. 5, wherein, clamp the elastic arm that effect depends on various configurations.In first type, helical member 2 and 4 shown in Fig. 1 is used for tightening to cable 8 downwards with semi-rigid 6, so that cable clip is tightened in the entry, and Fig. 2 illustrates the structure with single clamping helical member 10, and this helical member has a head 12 that enlarges directly to be pressed on the cable.

In the optional structure shown in Fig. 3 to Fig. 5, generally cable is kept in place by moulding flexible arm 14,16 with band ridge surface 18,20.These flexible arms by this way with cable splice, i.e. any trial of cable being pulled out Electric wire clamp along the direction (B) of Fig. 3 all makes described brachiocylloosis so that these arms and cable splice get tightr.Can also replace two arms with the single arm 22 shown in the difference among Fig. 4 and Fig. 5 or 24, this single arm forces cable to engage with apparent surface 26 or 28.Yet, these arms can not stop cable to be pushed into and its distortion limited in one's ability.

Have the advantage that can keep cable very reliably though comprise the first kind Electric wire clamp of helical member, compare with the second class Electric wire clamp, they also have the shortcoming that more is difficult to install with fastening described cable; Yet, for the second class Electric wire clamp, though assembling is simpler, in general, can not fastening well cable.

By relatively, can find out from the vertical view of Fig. 6 that Electric wire clamp of the present invention combines the assembling easiness of " flexible arm " type clamping element and the reliability that screw fixed clamps part.One fixedly abutting element 30 be installed on the side of cable inlet path and have a band ridge surface 32 towards adjacent cable 34 sidepieces.These ridges are drawn out the outer any trend of electrical equipment to extend with the rectangular direction of cable inlet path with the opposing cable.Flexible arm 36 is parallel to generally that cable through extends on the opposite side of cable inlet path and its inner 38 is fixed on the inside of this electrical equipment.One clamps helical member 40 is screwed in the fixed installation of one in the electrical equipment piece 42, and its inner 44 is pressed against on the outer end of arm 36, so that when helical member is screwed, the outer end of arm moves to the dotted line position 46 shown in Fig. 6 and engages with the cable sidepiece herein.

Shown in very clear among Fig. 7 and Fig. 8,48 one-tenth steps of geared cable face of arm 36, these steps are parallel to the cable direction and extend, so that when arm moves to bonding station shown in Fig. 6, step top edge 50 overlaps slightly with cable so that cable leans against on the relative band ridge surface 32 and is securely held in suitable position.

To recognize, except band ridge surface 32 is preventing from electrical equipment the traditional role aspect the drawn out cable, the step-like back configuration of flexible arm (stepped back formation) 48 is suitable for forcing cable laterally to lean against when entering entry downwards on the band ridge surface 32.This can keep cable very reliably, so that any distortion action that may cause lead 52 to separate with the electric connection of electrical equipment of cable opposing.

With reference to figure 9, it illustrates an optional embodiment, wherein, the end of flexible arm 36 is to have a ledge structure 44 with the similar mode of the embodiment of Fig. 7 and Fig. 8, but, in addition, the surface of this end also has a series of transverse ridge 46, and the ridge 32 that these ridges are parallel on the abutment surfaces that is relatively fixed among Fig. 8 extends.These ridges are provided in the ridge 46 that one group of relative these step horizontal expansion is all arranged on each " step ", with along both direction clamping cables effectively.And this setting is guaranteed: at the bonding station of moveable arm 36, upper step 44 will resemble part covering cable the embodiment of Fig. 8, to keep cable more securely.

Though described exemplary embodiment shows with respect to the outward extending arm 36 of cable inlet, this arm also can extend internally alternatively.

Claims

1. Electric wire clamp that is used to comprise the electrical equipment of a cable inlet path, these anchor clamps have one in fixing second arm member on abutting element and the opposite side at path of first on the side of path, and these anchor clamps are provided with one and clamp mechanism with at the first fixing clamping cables between abutting element and second arm member to the scalable that described fixedly abutting element direction promotes this arm member.

2. Electric wire clamp according to claim 1, it is characterized in that, described flexible piece comprises that one is parallel to generally that cable through extends and the one end is fixed on arm in the electrical equipment, simultaneously, the other end of this arm be freely and can with clamp helical member engage with this arm free end to fixedly abutting element direction promotion.

3. an Electric wire clamp according to claim 1 and 2 is characterized in that, this Electric wire clamp be provided be used for the band ridge of cable splice or band ledge surface to stop the pulling or the distortion of cable.

4. an Electric wire clamp according to claim 1 and 2 is characterized in that, extend with the rectangular direction of cable through on ridge on one of described element or step edge, and ridge on another element or step are parallel to the cable through extension.

5. an Electric wire clamp according to claim 4 is characterized in that, the ridge or the step that are parallel to the cable through extension are configured to when anchor clamps are positioned at bonding station, this corresponding element and cable section overlap joint.

6. Electric wire clamp according to claim 3, it is characterized in that at least one in the described element is formed with a band ledge surface, on this surface, described step is parallel to cable through and extends, and the surface of each step also is formed with the ridge with respect to the cable through horizontal expansion.

7. Electric wire clamp according to claim 6, it is characterized in that, described step is configured to make width the gradually changing than the less width of big width to the path outside from the path inboard of cable through, so that when anchor clamps are positioned at bonding station, the outside of band step element and cable section overlap joint.

8. an Electric wire clamp according to claim 3 is characterized in that, extend with the rectangular direction of cable through on ridge on retaining element or step edge, and ridge on flexible member or step are parallel to the cable through extension.

9. a cable cleat according to claim 3 is characterized in that, ridge on retaining element or step are parallel to cable through and extend, and ridge on flexible member or step are along extending with the rectangular direction of cable through.

10. each described cable cleat in requiring according to aforesaid right is characterized in that scalable clamps mechanism and comprises a helical member that is screwed in the fixed installation piece.

11. illustrated cable cleat of Fig. 6 to Fig. 8 in basically as with reference to the accompanying drawings.