CN1327750C - Locking structure - Google Patents

Abstract

Provided is a lock structure in which a locked state is easily canceled for detachment. A lock projection (21) provided in one member (20) is locked with a lock (31) provided in another member (30) to mutually lock the pair of confronted members (20, 30). A detaching jig (11) is then inserted between the lock projection (21) and the lock (31) to cancel the locked state, and the detaching jig (11) is hung on a wall (25) that is provided in the lock projection (21) to draw the one member (20) wherein the projection (21) is provided. Therefore, in such a lock structure (10), the lock projection (21) is detached from the lock (31) by the detaching jig (11) to cancel the locked state and to draw the lock projection (21), thereby solving a problem that it is conventionally difficult to detach the confronted members even by canceling the locked state.

Description

Locking mechanism

Technical field

The present invention relates to a kind of locking mechanism, relate in particular to and be used for relative a pair of parts are fastened and the locking mechanism of locking.

Background technology

In the past, for example be well known that and lid be installed on the cassette body and the locking mechanism (reference example such as patent documentation 1) of its locking.

As shown in Figure 6, in this locking mechanism 100A, on the lateral wall of box 110, be provided with the fastening piece 111 that constitutes by a pair of projection, simultaneously, on the lateral wall of the lid on the box 110 120, be provided with a pair of pliability arm 121 in spiral-lock, be provided with stay 122 at its front end.Like this, lid 120 is covered on box 110, make 121 deflections of pliability arm, thereby the stay 122 and the fastening piece 111 of box 110 are interlocked, thus, lid 120 just has been locked with box 110.

On the other hand,, use such as screwdriver 101 extracting tools such as grade and prop up stay 122, stay 122 is thrown off from fastening piece 111, lift lid 120 again for removing locking state.

Patent documentation 1: the real clear 61-90122 communique (Fig. 2) of opening

, as shown in Figure 7, at the inside intercalation electric component 140 of the electrical relaybox 130 of for example case shape and with the locking mechanism 100B of its locking, during dismounting electric component 140, stay 122 outwards is out of shape as aforesaid locking mechanism 100A, be very difficult.

That is, during from electrical relaybox 130 dismounting electric components 140, for removing locking, for example, shown in Fig. 8 (A), screwdriver 101 instruments such as grade are inserted between stay 122 and the electric component 140, shown in Fig. 8 (B), front end with screwdriver 101 props up stay 122, push it against the outside, stride across fastening piece 111, just must lift electric component 140 upward for making it in this state, but owing to can not catch electric component 140, thereby it can not be taken out.

In other words, when strutting stay 122 by screwdriver 101, electric component 140 is moved upward with respect to electrical relaybox 130, but owing to can not raise electric component 140 from downside, thereby a people operates just very difficultly, this is its problem place.

Summary of the invention

The present invention be directed to the problems referred to above and propose, purpose provides a kind of locking mechanism, can be easy to remove locking state and dismantle.

For achieving the above object, among the present invention, be provided with on the quadrate part spare in relative a pair of parts and fasten projection, on the opposing party's parts, be provided with simultaneously with this fastenings protruding be interlocked can strain buckling parts, above-mentioned buckling parts and above-mentioned fastening projection are interlocked, thereby above-mentioned a pair of parts are locked mutually, it is characterized in that: on above-mentioned fastening projection, be provided with between above-mentioned fastening projection and above-mentioned buckling parts and insert extracting tool, when removing locking state, prop up the wall portion of above-mentioned extracting tool.

Herein, as relative a pair of parts, can be example with cassette body and the cover that cooperates with this cassette body or lid.

Also have, as extracting tool, can be very thin, screwdriver with enough intensity and rigidity etc. is example with front end.

In the locking mechanism that constitutes like this, the fastening projection that is located on the quadrate part spare is fastened by the buckling parts that is located on the opposing party's parts, makes relative a pair of parts fasten mutually and lock.And, insert extracting tool fastening between projection and the buckling parts, remove locking state, simultaneously, extracting tool is propped up be located at fasten on the projection wall portion, fasten a protruding quadrate part spare and pull out being provided with.

Like this, in this locking mechanism, can the fastening projection be thrown off from buckling parts by extracting tool, remove locking state, to fasten projection simultaneously and pull out, therefore, remove the problem that locking state also is difficult to dismantle relative parts in the prior art even can solve.

Also have, the invention is characterized in: in the inboard of the buckling surface of above-mentioned fastening projection, the inclined-plane that above-mentioned buckling parts strides across when having locking with this slope abuts, is provided with the recess that above-mentioned extracting tool can insert, and is provided with above-mentioned wall portion at this recess.

In the locking mechanism of this formation, a pair of parts fasten mutually and when locking, buckling parts strides across along the inclined-plane that fastens projection and fastens projection, are fastened by buckling surface.Also have, remove locking, when dismantling a pair of parts, extracting tool is inserted the recess of the inboard of the buckling surface that fastens projection, remove locking, simultaneously, make extracting tool prop up the wall portion of recess and pull it.

Like this, in this locking mechanism, can be enough extracting tool easily remove locking state simultaneously and pull it, therefore, removed the problem that locking state also is difficult to dismantle relative parts in the prior art even solved.

According to the present invention, the effect of acquisition is: can solve and be difficult to the problem of taking out in the prior art, can easily remove locking state thus and with its taking-up.

Description of drawings

Fig. 1 is the vertical view that expression is suitable for the example of locking mechanism of the present invention.

Fig. 2 is the perspective view that expression is located at the fastening projection on the cassette relay case.

Fig. 3 is the perspective view that expression is located at the buckling parts on the electrical relaybox.

Fig. 4 (A)～(C) is the step of cassette relay case is taken out in expression from electrical relaybox vertical view and a profile.

Fig. 5 is other routine perspective view that expression fastens projection.

Fig. 6 is the perspective view of one of the existing locking mechanism of expression example.

Fig. 7 is the perspective view that the existing electric component of expression is installed in the state in the electrical relaybox.

It (B) is the existing step of electric component is taken out in expression from electrical relaybox profile that Fig. 8 (A) reaches.

Embodiment

Below, with reference to accompanying drawing embodiments of the present invention are elaborated.Fig. 1 is the vertical view that expression is suitable for the example of locking mechanism of the present invention, Fig. 2 be the expression locking mechanism of the present invention the fastening projection fragmentary, perspective view, Fig. 3 is the perspective view of expression buckling parts, and Fig. 4 (A)～(C) is the profile that the step of locking and dismantling is removed in expression.

As shown in Figure 1, locking mechanism 10 as embodiments of the present invention, cassette relay case 20 is installed in the inside of electrical relaybox 30, wherein, cassette relay case 20 is as a side who makes in the modular a pair of parts relatively of relay and fuse, and electrical relaybox 30 is as the opposing party that various electric components are housed.

As shown in Figure 2, on lateral wall 20a, be provided with and fasten projection 21 as the cassette relay case 20 of a quadrate part spare.

Fasten on the projection 21 at this, downside (downside among Fig. 2) is provided with inclined-plane 22, and upper surface becomes buckling surface 23.The inboard (downside among Fig. 2) of the buckling surface 23 on fastening projection 21 with inclined-plane 22 adjacency, is provided with recess 24.Recess 24 has the size that the front end of extracting tool 11 can insert, and is provided with the wall portion 25 that can prop up extracting tool 11 on recess 24.

On the other hand, as shown in Figure 3, on medial surface 30a, be provided with the buckling parts 31 that the fastening projection 21 with cassette relay case 20 is interlocked as the electrical relaybox 30 of the opposing party's parts in a pair of parts.This buckling parts 31 has a pair of flexual arm 32a, 32b, has the link 33 that is connected with the front end of two arm 32a, 32b.

Like this, the fastening space 34 that is surrounded by two arm 32a, 32b and link 33 is just arranged on buckling parts 31, fasten projection 21 and be embedded in this fastening space 34 and become locking state.

Below, the locking action of locking mechanism 10 is described.

If the assigned position of cassette relay case 20 intercalations, on one side arm 32a, the 32b of the buckling parts 31 of cassette relay case 20 climb up and stride across the inclined-plane 22 of the fastening projection 21 of electrical relaybox 30 with regard to deflection on one side to electrical relaybox 30.

Like this, fasten the fastening space 34 that projection 21 just embeds buckling parts 31, the buckling surface 23 that fastens projection 21 fastens with regard to connected component 33, becomes the locking state that prevents that cassette relay case 20 from coming off.

Below, with reference to Fig. 4 (A)～(C), the action of taking out cassette relay case 20 from electrical relaybox 30 is described.

Between the lateral wall 20a of the link 33 of the locking mechanism 10 that is in the locking state shown in Fig. 4 (A) and cassette relay case 20, for example, insert the front end of as screwdriver front end extracting tool 11 not only thin but also thin, that make by the high-intensity material of high rigidity.

Shown in Fig. 4 (B), if the front end that makes extracting tool 11 to electrical relaybox 30 1 side shiftings, link 33 will rise, and arrive to fasten protruding 21 the place aheads than its high position, locking state just is disengaged.

Then, shown in Fig. 4 (C), the front end of extracting tool 11 is propped up the wall portion 25 that is located at the recess 24 that fastens projection 21, cassette relay case 20 is pulled out.

At this moment, the front end of maintenance extracting tool 11 props up the state of the wall portion 25 that fastens projection 21, draws high fastening projection 21, and cassette relay case 20 is pulled out.

More than, according to above-mentioned locking mechanism 10, just can insert the front end of extracting tool 11, and prop up the wall portion 25 that fastens projection 21 with the front end of extracting tool 11, remove locking state, pull it simultaneously, therefore, just easily take out intercalation in electrical relaybox 30 and the cassette relay case 20 that is locked.

In addition, locking mechanism 10 of the present invention is not limited to above-mentioned execution mode, but can carry out suitable distortion, improvement etc.

For example, in the above-described embodiment, be illustrated with the situation about combining of cassette relay case 20 for locking mechanism 10 being used for electrical relaybox 30, but be not limited to this, but can be extensive use of.

Also have, in above-mentioned locking mechanism 10, on fastening projection 21, be provided with an inclined-plane 22, but, fastening projection 21 as shown in Figure 5 also can be provided with a pair of inclined-plane 22a, 22b, the recess 24 of the size that extracting tool 11 can insert is set between them, recess and wall portion 25 are set.

In addition, the material of illustrative in the above-described embodiment fastening projection 21, buckling parts 31 etc., shape, size, form, quantity, configuration position etc. are arbitrarily, without limits, as long as it is just passable to reach purpose of the present invention.

Claims (5)

1. a locking mechanism has

Be arranged on the 1st parts non-resilient fastening projection and

Be arranged on the 2nd parts, with the protruding elasticity buckling parts that is interlocked of described fastening,

Described the 1st parts and described the 2nd parts are opposed,

When removing the fastening of described fastening projection and described buckling parts, utilize extracting tool to make described buckling parts deflection, this buckling parts is removed from described fastening projection,

On described fastening projection, be provided with and pull out the portion that props up of described first parts by propping up described extracting tool.

2. locking mechanism as claimed in claim 1, described fastening projection has the inclined-plane that this buckling parts slides when locking with described buckling parts,

Form recess described the fastening on the protruding inclined-plane,

The described portion of propping up is the inwall of described recess.

3. locking mechanism as claimed in claim 2, described recess are arranged on the described central portion that fastens the inclined-plane of projection.

4. locking mechanism as claimed in claim 3, described recess stride across from the described central portion that fastens the inclined-plane of projection and describedly fasten the sidewall of projection and be provided with.

5. locking mechanism as claimed in claim 2, described fastening projection have the buckling surface that prevents to remove locking at when locking and described buckling parts butt,

Described recess strides across from the described central portion that fastens the inclined-plane of projection and describedly fastens the buckling surface of projection and be provided with.

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