CN1099527A

CN1099527A - Source wire socket

Info

Publication number: CN1099527A
Application number: CN94103268A
Authority: CN
Inventors: W·克雷斯; A·宾达
Original assignee: Kress Elektrik GmbH and Co Elektromotorenfabrik
Current assignee: Kress Elektrik GmbH and Co Elektromotorenfabrik; Kress Elektrik GmbH and Co
Priority date: 1993-03-24
Filing date: 1994-03-04
Publication date: 1995-03-01
Anticipated expiration: 2014-03-04
Also published as: EP0617482B1; DE4309563C2; EP0617482A2; EP0617482A3; DE59409346D1; DE4309563A1; CN1076894C; ATE193162T1

Abstract

In the case of a mains cable plug connection for electrical appliances and electrical tools, the plug which is connected to the electrical cable consists of two plug part halves which are connected to one another and on which latching vanes, which are flexible in an elastically resilient manner, are fastened from the outside by means of a common screw union, which latching vanes secure the plug in a positively locking manner by means of latching shoulders on both sides in the interior of a retaining socket into which it is inserted, with the aid of latching shoulders which engage behind corresponding locking recesses in the retaining socket.

Description

Source wire socket

The present invention relates to a kind of source wire socket as described in the preamble as claimed in claim 1.

As everyone knows in the electrical equipment field, for this equipment and supply socket are realized being electrically connected, and adopt a kind of its inner clamping and have the cable that correspondence electrically contacts, near a stepped portions, strengthen usually with gum sleeve or analog; Perhaps mounting receptacle on equipment can insert wherein the feed cable plug.When being used for and electric tool, when particularly for example electric hand drill, electric screwdriver, electronic fret saw or the like are connected with electric hand tool, seldom adopt a kind of mode in above-mentioned back, because if adopt a kind of mode in back then usually when pegging graft operation, owing to vibration constantly and/or because cable stretches tight too tightly, and the feed cable plug is skidded off from the socket of electric tool.

On the other hand; when feed cable is installed on the hand electric equipment; following tangible problem usually can appear; promptly usually after using with cable on equipment, and deposit like this, yet; when the place of depositing this instrument also is placed with other instrument; power cable will be in great confusion, and loosing and leave about cable unfavorablely everywhere, even suffers damage.

And under the situation that feed cable is stopped up, on the exit position that just slave unit is drawn, the just inevitable bending of cable gets severe, this situation often takes place in frequent use, when the cable of extraction location strengthens with sleeve pipe, repeatedly use the cable breakage that also can make sleeve portion or adjacent sleeve pipe back, not only can produce the problem that electrically contacts with equipment, but also can produce safety problem, for example when certain phase conductor that connects exposes.

As a result, entire equipment must be taken apart,, for example cut off that part of cable of fracture so that can the cable of equipment be coupled together; When electrical equipment belonged to half shell system, this demolition was just especially required great effort.

In view of this, the purpose of this invention is to provide a kind of any electrical equipment that is used to realize, the source wire socket that connects of electric tool or electric hand tool feed particularly, it can be plugged on this equipment safely and reliably and not loosely, and simple in structure, easy to manufacture, can open repairing after damaging, therefore, needn't be that whole feed cable connects, for example comprise that the not easy to operate and cable of link that has welded is connected and worries about.

Feature by claim 1 can realize purpose of the present invention, and the present invention has

Following advantage, plug are inserted in the socket on the equipment of being usually located at reliably, and can not become flexible, and more particularly, plug is to adopt interface arrangment rational in infrastructure and realize with the grafting of socket, and this interface arrangment is arranged on the both sides of plug.

This plug is easily extracted in the socket of slave unit, and when pinching the grip portions of pressing on the Ka Bi with hand, dogging shoulder just leaves the locking groove in the socket, and plug just can easily be extracted.

Just can finish the aforesaid operations process with a hand, because Ka Bi puts on plug relatively, thereby, for example can catch and pinch the Ka Bi of pressure both sides with thumb and forefinger, plug is broken away from be connected with the stop of socket.

Also has an advantage, this plug itself is whole knock-down, thereby can change parts or repairing with comparalive ease, otherwise resemble the place that traditional product need be welded, because the connection of cable connector is non-removable, therefore, cable must be removed, perhaps will be on the market commercially available plug be connected with the cable that has been shortened, this requires some hand skills.

If break down really in the grafting zone of plug or damage, the present invention can recover the continuation of electric tool is used at once, considers the problem that makes full use of of the cable with good and expensive insulation here.

In addition, also have an advantage, can continue to guarantee good contact performance, wherein adopted the blade type contact, when pushing open because the effect of elastic pressure and the just contact chip cleaning that becomes.

The cable connector that is used for contacting connection is just taken apart as can be seen, and whole plug is made up of five parts that comprise sleeve portion, and these five parts can easily assemble up.

Also have a special advantage, that is, in the end in installation steps, Jiang Kabi is fixed on the both sides of plug, and spring is set in plug, makes the Ka Bi of both sides all be subjected to the pushing force effect of this spring and is strutted.

The structure of plug is very important, concerning such cable connector, usually socket is arranged on the electrical equipment, but according to user's needs, also socket can be arranged on cable end, and plug is arranged on the equipment, because this socket is relatively simple for structure, the hollow body structure can be made by each housing wall portion with the cable connector that is connected with electric tool.

The interior shape structure of above-mentioned hollow body conforms to the contour structures of plug, is no problem thereby insert in the socket, simultaneously, realizes in the socket being electrically connected by existing contact chip in the socket part is inserted accepting on the plug.This structure of on plug this can be with common commercially available socket be identical on the market, and the sheet metal of two mutual elastic compressions is set, and the contact chip in the apparatus socket inserts between these two sheet metals and constitutes the blade type contact.

The technical characterictic that dependent claims is put down in writing is to further improvement of the present invention, and can bring further advantage.Especially favourable being further characterized in that, in order to simplify installation process, the bonding part of mutual clamping is set in the mode of the rib of projection or groove correspondingly respectively on the two halves plug portion, after the installation, intact structure of the mutual chimeric formation of this two halves plug portion, at this moment can make at the very start by following manner can aligned position, promptly, with the semi-barrel shape part of half plug portion front end and the bigger semi-barrel shape part interlocking simply of second half plug portion front end, just immediately the two halves plug portion is aimed at mutually and do not carry out long trial assembly, in addition, a through hole that passes two halves is set on plug, be used for the rotational pressure spring, then, with simple screw ways of connecting two Ka Bi are installed in the basic pluger part both sides that assembled, make above-mentioned compression spring between two card walls, thereby spring force is acted on the Ka Bi of both sides effectively.

Describe embodiments of the invention in detail below in conjunction with accompanying drawing, in the accompanying drawing:

Fig. 1 is the plane graph of plug, therefrom it can also be seen that relative elastic wall;

Fig. 2 is the end view of plug shown in Figure 1, and wherein both sides are elasticity Ka Bi;

The plane graph of Fig. 3 and Fig. 1 is similar, but has taken away the upper cover part of plug, and this part is at outer edge abuts elasticity Ka Bi;

Fig. 4 is the profile along the IV among Fig. 3-IV line;

Fig. 5 is the profile along the V among Fig. 3-V line;

Fig. 6 is the profile along the VI among Fig. 3-VI line;

Fig. 7 is the profile along the VII among Fig. 3-VII line; And

Fig. 8 is the profile along the VIII among Fig. 3-VIII line; At last

Fig. 9 is the front view of plug shown in Figure 1, and

Figure 10 only represents a kind of execution mode of the socket that matches to the plug of Fig. 9 with Fig. 1, and the socket of this mode is mainly used in common electrical equipment.

The dominant ideas of the invention described above are, design a kind of knock-down, that also can arbitrarily plug or extract and favourable to environment thus plug, but its outside flexible clamping, particularly be used for and the electric hand tool clamping, projection engagement in it and the electric tool shell, by this engagement, make plug remain on plug-in position reliablyly and rational in infrastructurely, and can break away from this plug-in position equally unquestionablely, when two elasticity Ka Bi that operate the plug outside with a hand compressed them mutually, the clamping convex shoulder then broke away from the lock slots in the socket, thereby plug can be extracted.

The structure of plug 10 and citation form are seen the most clearly from Fig. 4; This plug comprises two major parts, the first half parts 11 that are called essential part below being, and another is a cover 12, Fig. 3 is the view that is obtained in the cover 12 back projections of having taken away on the essential part 11.

As can clearly be seen that from Fig. 1,2 and 4, on the outside of the two halves plug portion that is combined into one,

card wall

13a and 13b are housed, the front portion of each half plug portion all is provided with

groove

14a and 14b(referring to Figure 4 and 5), in above-mentioned front portion and anterior portion after a while be appendage 15a, the 15b of each Ka Bi, they are in installment state, and rib by both sides and groove is mutual chimeric and fixing, and these ribs that are arranged in the groove that respectively blocks wall appendage 15 next doors are represented with label 16 at Fig. 5.

The structure of plug also comprises the sleeve portion 17 or the prolongation at its rear portion, front portion at the sleeve portion 17 of this plug is provided with cannelure 17a, the semi-circular flange 18a of two protrusions, embed among the cannelure 17a, fix 17, two semi-circular flange 18a of sleeve portion and 18b thus and constitute a complete annular flange flange altogether.

From Fig. 3, can clearly be seen that, utilize the little metal consent 19a, the 19b that are provided with in its end to come conduction current, back in its blade type contact portion, preferably utilize the method for shrinking or pressing,

socket

19a, 19b and two

lead

20a, 20b are coupled together respectively, plug comprises five parts altogether, that is: the two

halves plug portion

11,12, the sleeve portion 17 of back and the card wall 13a, the 13b that are positioned at both sides.

The method of attachment of two halves plug portion is as follows: therein on half plug portion, preferably on essential part shown in Figure 3 11, be that raised line 21 is set vertically substantially on the limit, in the corresponding cannelure 22 with raised line 21 insert cover parts 12 (referring to Fig. 5 and 6).Clearly, can also select other chimeric mode mutually here as the case may be.

A useful especially improvement is, for the initial alignment location, simultaneously also in order to get out a through hole 23(Fig. 4 who connects the two halves plug portion) settle compression spring 24, therein on half plug portion, be preferably on the essential part 11, central protuberance is set, tubulose annular projection 25, second half plug portion, be on the cover 12, the less annular protrusion of diameter divides the above-mentioned tubulose annular protrusion of 26 insertions to divide in 25, thereby, two parts are together with each other as telescope, form an outside open through hole in both sides that is used for stage clip 24 simultaneously, so that stage clip is sidelong this through hole from one, here preferably referring to Fig. 4, make two of this stage clip act on the card wall 13a of two halves plug portion, on the 13b, and have an outside elastic force, in addition, spring terminal puts in card wall 13a, in the peviform groove of 13b inboard.

The installation process of this plug is as follows: at first with welding, crimp (krimpen) or other method of attachment, with two sockets and two lead 20a that pass the cable 20 of

sleeve pipe

17,20b connects, socket 19b can be clear that from Fig. 8 especially, form by two Metal Contact sheets 28, these two Metal Contact sheets 28 clamp mutually by elasticity, clip together mutually at its rear portion, and its front end separates, therefore, even have in direction of insertion under the situation of a deviation, contact chip 21 in the socket that matches with plug 30 shown in Figure 10 also can insert easily, and keeps remarkable blade type contact owing to contact chip has resilient clamp power.

Then, as shown in Figure 3,

metal consent

19a, 19b are packed in the essential part 11, side direction receiving orifice 30 for example is set on the housing sidewall of plug base, in the tongue piece that extends laterally 29 these receiver holes of corresponding insertion, circle in the middle of utilizing simultaneously enters hole 25 and is that each

socket

19a, 19b produce a relative locking device 31, so that have orientation or holding function in the region of acceptance.In essential part 11, form acceptance or contacting metal socket 19a, the 19b of predetermined fixed thus; after the final combination of two halves plug portion; usually utilize the cross rib 31 that is provided with on half or two halves or the two halves plug portion and above-mentioned

socket

19a, 19b are fixed, the above-mentioned contact base of packing into of above-mentioned two halves plug portion protection.Thereafter, on the zone of plug inside and the cable end 32 that stretching out, predetermined projection is set, so that when the two halves plug portion screws down fixedly, cable end is clamped in plug, just in time shown in Figure 7, from Fig. 7, can also be clear that two projections that are used for tightening 33, they are used for cable end 32 is clamped and compressed, they also constitute an oval component 34, are used for compressing the cable end 32 that puts in.

With two screws 35 the two halves plug portion is fixed up, as shown in Figure 7, screw 35 is screwed in the hole 36 that two halves plug portion rear portion is interconnected, and partly also be together with each other as telescope, with the same just now, the two halves plug portion is positioned and is combined into one as shown in Figure 7.

Meanwhile, the sleeve pipe 17 that is locked and has annular flange flange 36, assembling is more favourable like this, and then, spring 24 is put into hole 23, then, the Ka Bi that two front portions have appendage is installed on the all-in-one-piece two

halves plug portion

11,12 that interfixes with screw.

On the two halves plug portion, as shown in Figure 4, the tubular projection 37 of card wall 13a reaches the end of the jack 38 in the two halves plug portion always, jack 38 is preferably oval or is essentially rectangle (as shown in Figure 3), so that can easily insert screw 39 from another side, and can be easily that extension or appendage 15a, the 15b of front is fixed with each other, also be fixed together simultaneously, and two

card wall

13a, 13b are coupled together with mounted two halves plug portion.Stage clip 24 will block

wall

13a, 13b and strut, so that in the distance between the protrusion shackle portion 40 of both sides greater than the distance between two corresponding grooves 41, groove 41 is positioned on the respective inner walls of each electrical equipment socket, and only shows a kind of in this groove 41 all possible execution modes among Figure 10.When the plug of making in the above described manner (as shown in Figure 1, 2) inserts in the socket 30 shown in Figure 10, card wall 13a, the 13b that is strutted because of the elastic force effect of spring 24 be pressurized simultaneously, impel card nose or dogging shoulder 40 to fall into the corresponding locking groove 41 of socket 30 up to the pressure that struts because of spring 24, and till it is blocked.In this manner, plug 10 is fixed in the socket 30, and loosening never again when operating without heart, even also can not become flexible when upper edge the opposite way round of two Ka Bi is inwardly pushed.When being subjected to certain pressure on two gripping sheets 42 of Ka Bi, for example usually when the operator grips sheet 42 with the thumb of a hand and the inside pressure-raising of forefinger, distance between two longwells diminishes, it is necessary that this is that card nose or dogging shoulder 40 breaks away from the groove 40 of sockets 30, and the plug disengaging is connected with electrically contacting of socket.Then, the contact chip 29 of socket skids off in the socket up to breaking away from fully from electrically contacting under the continuous elastic pressure of contact-making surface 28.

Clearly, mutually combine the two halves plug portion 11 that is integral and 12 front portion all are provided with half groove, and this two halves groove just constitutes a complete rectangle insertion groove 43 altogether, and contact chip 29 is inserted into by this groove 43 among metal consent 19a, the 19b of back (Fig. 9).

It should be appreciated that at last claim particularly main claim is attempted the notebook invention, and prior art is not included, and also is not subjected to the restriction of various opinions.Therefore we adhere to, in specification, claims and accompanying drawing in the disclosed all technical characteristic not only independent feature as substantive characteristics of the present invention, and the combination in any of these features also belongs to substantive characteristics of the present invention, and above-mentioned feature is documented in claims.

Claims

1, a kind of electrical equipment and electric tool of being used for, the source wire socket of electric hand tool particularly, it has the plug of tape cable and affiliated, the socket that its shape conforms to plug, it is characterized in that, be oppositely arranged two elasticity Ka Bi (13a, 13b) in the both sides, outside of plug (10), they are outwards strutted with spring, under the state that plug is inserted in the socket, dogging shoulder (40) is stuck in the corresponding stop draw-in groove (41) set in the socket (30).

2, source wire socket according to claim 1, it is characterized in that, Ka Bi (13a, 13b) is positioned at the outside of plug (10) and fixed with each other with screw, in the plug front portion through hole that passes two Ka Bi is arranged, and has been screwed into a shared screw rod in this through hole.

3, source wire socket according to claim 2, it is characterized in that, plug is made up of two half substantially the same plug portions (11,12), portion holds contact part within it, these parts interconnect in plug inside, and be formed on the reception bag to open front of front end, as the appendage (15) of two Ka Bi (13a, 13b), the connecting screw rod (39) of Ka Bi (13a, 13b) is positioned at for electrically contacting between the opening (43) that socket (19a, 19b) is provided with.

4, according to a described source wire socket of claim in the claim 1 to 3, it is characterized in that, Ka Bi (13a, 13b) is outwards strutted by a shared compression spring (24), and this spring (24) is placed in the through hole (23) that connects two halves plug portions (11,12).

5, peg graft according to the described feed cable of a claim in the claim 1 to 4, it is characterized in that, two relative gripping sheets (42) are set on the Ka Bi of plug (10) (13a, 13b) backward, dogging shoulder (40) are set on each both sides that grip sheet (42).

6, according to a described cable connector of claim in the claim 1 to 5, it is characterized in that, for the ease of installing, it is (unrund) of non-circle that Ka Bi (13a) goes up with blocking the rectangular appendage of wall major part (15a), it and appendage (15b) butt joint of relative another Ka Bi (13b) are provided with through hole (38) at two on mutually combining half plug portion that is integral.

7, according to a described source wire socket of claim in the claim 1 to 6, it is characterized in that, utilizing on rib shape raised line (21) and another part the corresponding groove (22) that is provided with that the two halves plug portion is mutually combined is integral, at this moment, greatly about the center, stretch out a tubulose projection from half plug portion (essential part 11), on second half plug portion (cover 12) also is that the projection of tubulose inserts wherein, so as to form a through hole (23) that passes the two halves plug portion place two card walls shared spring (24).

8, according to a described source wire socket of claim in the claim 1 to 7, it is characterized in that, the both sides of the essential part of two halves plug (11,12) are provided with through hole, so that cable end (32) can be entered, simultaneously cable end is clamped, make two essential parts (11,12) combination with screw then, at this moment, semi-circular flange on the two halves plug portion blocks the groove on the cable sleeve (17), fore middle part is screwed into screw rod (39), make the Ka Bi (13a, 13b) of both sides fixing, finished the assembling of plug thus.

9, according to a described source wire socket of claim in the claim 1 to 8, it is characterized in that, in the inner chamber that is provided with the housing raised line of half plug portion (essential part 11), pack into the Metal Contact socket (19a, 19b) of blade contact-type, at this moment, on the respective socket on the electrical equipment (30), respectively has the tongue piece (29) that stretches out, these tongue pieces are expressed on the contact-making surface (28) of each socket by mutual elasticity, and the while resiliency supported is on contact-making surface.