GB2090075A

GB2090075A - Wire Terminating Apparatus

Info

Publication number: GB2090075A
Application number: GB8040740A
Authority: GB
Original assignee: Individual
Current assignee: Individual
Priority date: 1980-12-19
Filing date: 1980-12-19
Publication date: 1982-06-30
Also published as: AU7860881A; AU543412B2; GB2090075B

Abstract

A wire terminating apparatus comprises an outer casing (12) having a hollow section within, and a movable body (11) in the hollow section. The outer casing (12) has elastic means (16) disposed therein for engaging the movable body (11), and conductors (17, 18) are fixedly mounted in the hollow section. In a wire terminating operation the movable body (11) is depressed, the wire is inserted and the movable body is released, returning to its original position and securing the wire in contact with the conductor (17, 18). The invention may be incorporated in a plug (Fig. 4), a socket (Fig. 5), a line adaptor (Fig. 6), or a lampholder (Fig. 7), (latter three figures not shown). <IMAGE>

Description

SPECIFICATION Push-type Wire Terminating Apparatus The present invention relating to a unique wire terminating apparatus is characterized by requiring neither disassembly operation for wire connection nor any screws for wire securing except by pressing down a movable body, inserting the wire ends through wire passages thereof and releasing the pressure so as to complete the wire termination therein.

In making wire termination on the conventional electric plug, socket, adapter and lamp receptacle, it has to disassemble the housing structure first, and then make the termination on the components thereof and assemble the housing structure again. Therefore, the complication of these three steps--disassembly, termination and assemble again-becomes the main defect.

Moreover, the plug and socket, once being disassembled, are like a divided article. The identification of coupling elements and terminating operation are, of course, easy to those who are skilled in this field but difficult to those who are not familiar with electrical work. As a result, mistakes such as wrong connection, short circuitry and abnormal re-assembly of the components often cause dangerous accidents.

The only way to avoid this potential hazard is to ask a favor of the skilled people for making the termination, an easy job of doing it but a very inconvenience in troubling other people with this trifling problem. Efforts have been made to overcome the above defect on the conventional plug, socket and lamp receptacle but problem is still existing therein.

The present invention provides a novel and improved wire terminating apparatus completely eliminated the defect of the conventional plug, socket and lamp receptacle.

The primary object of this invention is to provide a simple wire terminating apparatus by means of pushing, inserting and making connection instead of disassembly, soldering or screw-connecting and re-assembly operation.

Another object of this invention is to provide a safe and easy wire terminating apparatus for those who are not familiar with electrical work so that no accidents on wire termination will occur.

These and other objects and a fuller understanding of the invention described herein may be had by referring to the following description of the preferred embodiments and claims taken in conjunction with the accompanying drawings.

Figure 1 is a sectional perspective view of the invention.

Figure 1-1 is a bottom view of the movable body of this invention.

Figure 2 is a sectional and perspective view of this invention when the movable body is pushed down therein.

Figure 3 is a sectional perspective view of the invention after completion of wire termination.

Figure 4 is a sectional perspective view of this invention adapted to a plug.

Figure 5 is a sectional perspective view of this invention adapted to a socket.

Figure 6 is a sectional view of this invention adapted to a line adapter.

Figure 7 is a sectional and perspective view of this invention adapted to a lamp receptacle.

Figure 7-1 is a top view of the lamp receptacle of this invention.

Figure 7-2 is a bottom view of the lamp receptacle of this invention.

Referring to Figure 1, a wire terminating apparatus of this invention includes an outer casing 12 having a hollow section therein and a movable body 11 located in the hollow section of the outer casing 12. On top of the movable body 11, at least two passages 111 and 112 preferably in conic shape are available for wire insertion through the movable body 11 and respectively curved sideward forming wire channels 11-3 and 114 communicating with at least two wire grooves 51 and 52 provided on the outer surface of the movable body 11 for receiving wire ends extending from the wire channels 113 and 114 thereof.On bottom of the movable body 11 a protrusion 13 having an annular groove 14 around its circumference is located at the center, and at least two guiding openings 11 5 and 11 6 for accommodating the movement of at least two metal conductors 17 and 18 at one end are provided between the side of the movable body 11 and the side of the protrusion 13.The guiding opening 115 and 116 having a plurality of arc sections 1 15a, 1 15b, 1 16a, and 11 6b (as shown in Fig. 1-1) at the lower portion for wire receiving and communicating with the wire channels 113 and 114 are elongated vertically into the upper portion of the movable body 11 so as to create certain clearances 11 sic and 11 6c therein with a space distance equal to that of a space 121 between the bottom surface of the movable body 11 and the top surface of the hollow section of the outer casing 12 for allowing the up-and-down movement of the movable body 11.

On top surface of the hollow section of the outer casing 12, a recess 1 5 corresponding to the protrusion 1 3 is situated in the center portion of the surface with elastic means such as a spring 1 6 being installed therein and engaged to the head annular groove of the protrusion 1 3 at one end so as to enable the movable body 11 to be operated up and down thereupon.Away from both sides of the recess 15, at least two metal conductors 1 7 and 1 8 having a wire through hole 171 and 181 at the upper portion and loosely protruding into the movable body 11 through the guiding opening 11 5 and 11 6 are respectively fixed at the lower portion preferably through molding with the outer casing 12.

Corresponding to the wire grooves 51 and 52 on the outer surface of the movable body 11, at least two wire grooves 51 a and 52a are respectively located along the inner wall of the outer casing 1 2 for receiving the wire ends coming down from the wire grooves 51 and 52.

Besides, at least two positioning lugs 122 and 123 are provided at the top portion of the outer casing 12 so as to keep the movable body 11 in position and further to prevent it from being ejected out of the outer casing 12 by the elastic force of the spring 1 6.

Concerning the terminating procedure, just press down the movable body 11, as shown in Figure 2, to ensure that the bottom surface of the movable body 11 is in contact with the top surface of the hollow section of the outer casing 12 so that the wire through holes 171 and 181 of the metal conductors 1 7 and 1 8 will be in line with the wire channels 11 3 and 1 14 thereof.

Insert the prepared wire ends 172 and 182 separately through the passages 111 and 112 on top of the movable body 11 until the wire ends 172 and 182 from the wire channels 113 and 114 passing through the wire through-hole 171 and 182 reach to the wire grooves 51 a and 52a, and then, releasing the pressure applied on top of the movable body 11, the wire ends separately inserted therein will be pulled down and pressed into the wire receiving arc sections 1 15a, 1 15b, 11 6a and 11 6b respectively by the metal conductors 1 7 and 1 8 through the upward elastic force of the spring 16, and the termination is completed therein accordingly (as shown in Fig.

3).

More embodiments of this invention as being adapted to plug, socket, line adapter, lamp receptacle etc. are illustrated as follows: Shown in Fig. 4 is a sectional view of this invention adapted to a plug. All the elements and structure are the same as those described in the first embodiment shown in Fig. f except that the lower portion of the metal conductors 17 and 18 are extended out of the bottom surface of the outer casing 12 for being served as plug prongs 17a and 18a.

Shown in Figure 5 is a sectional view of this invention adapted to a socket of which the outer casing 12 having a socket portion at its lower section is constructed as a single unit, and the lower end of the conductors 17 and 18 are connected respectively to the conductor of the female elements in the socket portion. In addition, the lower edge of the wire channel 113 and 114 is chamfered separately to form a slope 11 3a and 11 4a so as to enable the wire ends extending from the wire through hole 171 and 181 to be firmly held in position against the inner wall of the outer casing 12 through the slope 11 3a and 11 4a when the pressure applied on the movable body 11 is removed therefrom.The remaining terminating procedure is the same as that described in the first embodiment shown in Figure 3.

Shown in Fig. 6 is a sectional view of this invention adapted to a line adapter which, in fact, is a combination of the apparatus described in the first embodiment except that two movable bodies 11 and 11 a share the same spring 1 6.

Shown in Figure 7 is a sectional view of this invention adapted to a lamp receptacle which is designed in a cylindrical shape as a preferred embodiment. This lamp receptacle is substantially the same apparatus described in the first embodiment except that the outer casing 12 is divided into two portions of which the upper portion 12 is loosely coupled with the movable body 11 while the lower portion having fixed metal conductors is screwconnected with the upper portion serving as a lamp base thereat.

Referring to Fig. 7-1, the passages 111 and 112 for wire insertion are 1800 opposite with each other in diagonal direction. Referring to Fig.

7-2, the lower portion of the wire channel 11 3 and 114 is in elliptical shape so as to leave a certain space 11 3a and 11 4a between the outer surface of the movable body 11 and the inner wall of the outer casing 12. The purpose of said space 11 3a and 11 4a is to provide a wide area for accommodating the free ends of wire terminals thereof because the screw-connected outer casing 12 needs more area to align the space 11 3a and 11 4a with the wire channel 113 and 114 thereof.

While preferred embodiments have been illustrated and described, it will be apparent that many changes may be made in the general construction and arrangement of the invention without departing from the spirit thereof, and it is therefore desired that the invention be not limited to the exact disclosure but only to the extent of the appending claims.

Claims

1. A wire terminating apparatus comprising: an outer casing having a hollow section therein and at least one metal conductor mounted fixedly in the hollow section, one end of the metal conductor being protruded out of said outer casing; a movable body provided within the hollow section and having at least one passage therein for wire receiving, and a wire channel therein for communicating with the passage to allow a wire insertion therethrough to contact with the metal conductor in a guide opening; and elastic means installed within the hollow section of said outer casing for connecting with said movable body whereby the movable body loosely coupled with said outer casing can be pressed down for wire insertion and released for wire termination.

2. A wire terminating apparatus as claimed in Claim 1 wherein the lower portion of the hollow section is preferably provided with a recess for positioning said elastic means.

3. A wire terminating apparatus as claimed in Claim 2 wherein the underside of said movable body is provided with a protrusion for connecting with the upper portion of said elastic means.

4. A wire terminating apparatus as claimed in Claim 1 wherein the metal conductor has a wire through hole at the upper part for wire passing and securing in position therein.

5. A wire terminating apparatus as claimed in Claim 1 wherein the outer casing has a positioning lug on the inner wall of the top portion for keeping the movable body in position.

6. A wire terminating apparatus as claimed in Claim 1 wherein a guide opening is provided intersecting said wire channel for accommodating said conductor, the upper portion of said guide opening having a predetermined clearance for the up-and-down movement of said movable body along with said conductor and the lower portion of said guide opening having a plurality of arc sections for wire receiving and securing together with said conductor therein.

7. A wire terminating apparatus as claimed in Claim 1 or 6 wherein a predetermined space between the underside of said movable body and the top surface of said hollow section is formed with a space distance equal to that of said clearance at the upper portion of said guide opening so that when pressing down said movable body in contact with the top surface of said hollow section, said wire through hole of said conductor is in exact line with said wire channel for facilitating wire insertion operation.

8. A wire terminating apparatus as claimed in Claim 1 wherein both the outer side of said movable body and the inner wall of said outer casing is provided with wire grooves corresponding to each other in communicating with said wire channel for receiving the free wire ends therein.

9. A push-type wire terminating apparatus constructed and arranged substantially as hereinafter described with reference to the accompanying drawings.