JP2001056008A - Locking mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a favourable locking mechanism capable of preventing occurrence of deformation and breakage of the locking mechanism even in the case of repeating connection and disconnection of a pair of constitutional members and easily carrying out unlocking without using a jig. SOLUTION: A locking mechanism 26 of a wire harness protector 21 engages a protector main body 22 and a protector cover 23 with each other by engaging a hook part 31b provided on a head end of an insertion piece 31 extended to a side wall 22b of the protector main body 22 with a hole 33 for engagement provided on the. protector cover 23. An elastic piece 35 for pressing to energize the hook part 31b inserted into the hole 33 for engagement in a direction to hook it on an opening edge. 33b of the hole 33 for engagement as a head end part is engaged with an engagement part 33d of the protector cover 23 is provided in the neighbourhood of the hook part 31b of the insertion piece 31.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lock mechanism,
In particular, the present invention relates to a lock mechanism that locks a pair of components by engaging a hook portion provided on an insertion piece of one component with a locking hole provided on the other component.

[0002]

2. Description of the Related Art FIG. 7 shows a conventional example of a wire harness protector 1 for housing and holding a wire harness of an automobile or the like. The wire harness protector 1 includes a substantially gutter-shaped protector body 2 that houses the wire harness,
And a protector cover 3 for covering the upper opening of the protector body 2. Each of the protector body 2 and the protector cover 3 is an integrally molded product made of an insulating synthetic resin. When the protector cover 3 is brought into contact with an upper open portion of the protector body 2, the protector body 2 and the protector cover 3 are locked to each other by the lock mechanism 5. It has become so.

The lock mechanism 5 is disclosed in, for example,
No. 52634, the protector cover 3 is provided with insertion pieces 7 on both side edges, and the corresponding protector body 2 is provided with a peripheral wall 9 having locking insertion holes 9a formed on both side faces. is there. The insertion piece 7 has a structure in which an engagement protrusion 7b is formed to bulge on a distal end outer surface of a protrusion 7a extending from both side edges of the protector cover 3 along the butting direction. The peripheral wall 9 is provided with the hole 9 of the insertion piece 7.
When the amount of insertion into a reaches a specified value, the engaging projection 7b is locked to prevent the insertion piece 7 from coming off, and has a locking surface 9b.

In the case of the peripheral wall 9, the lock insertion hole 9 is used.
The cross-sectional shape of a is set to a rectangular shape slightly larger than the cross-sectional shape of the protruding piece 7a. However, as shown in FIG. 8 (a), when the engaging projection 7b is inserted with a certain force or more, the opening of the peripheral wall 9 constituting the locking insertion hole 9a expands due to the elastic deformation of the peripheral wall 9, and the engagement is made. The wall thickness and shape are devised so that the projection 7b can pass through. When the engagement projection 7b that has passed through the lock insertion hole 9a engages with the locking surface 9b, the elastic deformation of the peripheral wall 9 is reduced. Return to the engagement protrusion 7b
Is prevented from coming off.

By the way, the wire harness housed and held in the wire harness protector 1 as described above is taken out of the wire harness protector 1 for maintenance work such as wiring addition and disconnection check accompanying the addition of onboard electrical components. There are cases. In the lock mechanism 5 described above, when releasing the lock between the protector cover 3 and the protector main body 2 to take out the wire harness, first, FIG.
As shown in (b), the insertion piece 7 in the lock insertion hole 9a is formed.
The jig 11 is inserted between the outer peripheral wall 9 and the peripheral wall 9 to elastically deform the peripheral wall 9 in the widening direction, thereby releasing the engagement of the engagement protrusion 7b by the engagement surface 9b. Next, while the peripheral wall 9 is elastically deformed by the insertion of the jig 11, the protector cover 3 is pulled up in the direction of the arrow (a) to pull out the engagement protrusion 7b from the lock insertion hole 9a.

[0006]

However, in the conventional lock mechanism 5 described above, if the amount of protrusion of the engagement projection 7b is increased to improve the engagement strength, the engagement and disengagement of the insertion piece 7 and the peripheral wall 9 is prevented. At this time, the peripheral wall 9 forming the lock insertion hole 9a is forced to deform excessively.
When the engagement and disengagement of the peripheral wall 9 are repeated, there is a possibility that the peripheral wall 9 remains deformed or the peripheral wall 9 is damaged as shown in FIG. In order to lock the insertion piece 7 to the peripheral wall 9, when forcibly pushing the engagement protrusion 7 b into the lock insertion hole 9 a,
When the jig 11 is inserted to release the engagement between the insertion piece 7 and the peripheral wall 9, the engagement protrusion 7 b may be deformed or damaged. Further, when the engagement between the insertion piece 7 and the peripheral wall 9 is released, there is another problem that a jig is required and the handling is poor.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to solve the above-described problems, and it is possible to prevent the lock mechanism from being deformed or damaged even when the pair of constituent members is repeatedly engaged and disengaged.
An object of the present invention is to provide a good lock mechanism that can easily perform lock release without using a jig.

[0008]

SUMMARY OF THE INVENTION It is an object of the present invention to engage a hook provided at the tip of an insertion piece extended to one component with a locking hole provided in the other component. Thereby, a locking mechanism that locks the pair of constituent members, wherein the locking hole is an opening through which the hook portion can be inserted and removed, and near the hook portion of the insertion piece,
A presser for urging the hook portion inserted into the locking hole to engage with the opening edge of the locking hole by engaging the distal end portion with the engaging portion of the other component member. This is achieved by a lock mechanism characterized in that an elastic piece for use is provided.

According to the above configuration, the pair of components are abutted in a predetermined positional relationship, and the hook provided at the tip of the insertion piece of one of the components is inserted into the locking hole of the other component. Then, the distal end portion of the pressing elastic piece engages with the engaging portion of the other component member and urges the hook portion in the direction of engaging with the opening edge of the locking hole. The member is locked by the hook in the detaching direction.

In the locked state of the pair of constituent members, the insertion piece is always urged in the locking direction by the pressing elastic piece, and the hook portion is securely locked to the opening edge of the locking hole. Is maintained, the hook portion is not accidentally disengaged from the locking hole, and the pair of constituent members are stably locked to each other.

On the other hand, when the locked state of the pair of constituent members is released, the other constituent member is displaced relative to the one constituent member in a direction against the urging force of the pressing elastic piece. Since the pressing elastic piece is elastically bent through the mating portion, and the locking hole is relatively displaced in a direction in which the locking hole is released from the hook portion, the hook portion is moved from the locking hole. It becomes possible to extract, and the engagement between the pair of constituent members can be easily released. Therefore, a jig or the like for releasing the engagement between the hook portion of the insertion piece and the locking hole becomes unnecessary, and excellent handling properties can be obtained.

Since the locking hole is an opening having a size large enough to allow the hook portion to be inserted and removed, the hook portion is opened when the insertion piece is inserted into and removed from the locking hole. It can be inserted and removed without interfering with the edge, and there is no unreasonable deformation or breakage of these hooks or locking holes. Further, a pressing elastic piece for urging the hook portion in a direction to be hooked on an opening edge of the locking hole is formed independently of the insertion piece and the locking hole, and a pair of the configuration. Even if the amount of protrusion of the hook portion that locks the member in the disengagement direction is increased, the operation force at the time of disengagement does not increase, and good engagement and disengagement workability can be secured.

Preferably, the pressing elastic piece is bent between the distal end portion of the pressing elastic piece and the engaging portion when the pair of constituent members are abutted in a predetermined positional relationship. A guiding taper is provided to guide the portion to the engaging portion. In this case, by merely abutting the pair of constituent members in a predetermined positional relationship so that the insertion piece is inserted into the locking hole, the distal end portion of the pressing elastic piece is provided between the engaging portion and the engaging portion. Since the guide member is guided to the engagement portion by the guiding taper, the pair of constituent members can be easily locked.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a lock mechanism according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. FIG.
1 is an overall perspective view showing a state where a protector cover of a wire harness protector using a lock mechanism according to a first embodiment of the present invention is opened, and FIG. 2 is a state where the protector cover of the wire harness protector shown in FIG. 1 is closed. FIG. 3 is an enlarged view of a portion A in FIG. 2, FIG. 4 is a cross-sectional view for explaining the operation of the lock mechanism shown in FIG. 1, and FIG.
It is a B section enlarged view of (d).

[0015] The wire harness protector 2 of the present embodiment
As shown in FIG. 1, reference numeral 1 denotes a substantially gutter-shaped protector body 22 for accommodating a wire harness (not shown) of an automobile or the like, and a protector cover 23 for covering an upper open portion of the protector body 22. The protector cover 23 has a configuration in which one side edge is coupled to an upper edge of one side wall 22a of the protector body 22 via a thin hinge 24, and the protector cover 22 is formed of an insulating synthetic resin. It is integrally molded.

The protector cover 23 rotates about the hinge 24 as a center of rotation, and can open and close an upper opening of the protector body 22. At a position near the hinge 24 of the protector cover 23, a kinking preventing rib 23a is provided upright along the longitudinal direction. The ribs 23a for preventing kinking improve the rigidity of the protector cover 23,
The protector cover 23 is prevented from bending or twisting when opened and closed. Then, the protector cover 23
As shown in FIG. 4D, in the closed state, the side edges are brought into contact with the upper edges of the side walls 22a and 22b of the protector body 22, and the side edge of the protector cover 23 on the free end side. Are connected and fixed to the other side wall 22b of the protector main body 22 by the lock mechanism 26.

The lock mechanism 26 is a lock mechanism for mutually locking a pair of butted components, and the other side wall 22b of the protector main body 22, which is one of the components.
And a locking hole 33 provided at a free end side edge of the protector cover 23, which is the other component, and a protector body so as to be close to the insertion piece 31. And a pressing elastic piece 35 provided inside the other side wall 22b of the pressing member 22.

The insertion piece 31 has a protruding piece 31a extending from the tip of the other side wall 22b of the protector body 22 in the direction of abutment with the protector cover 23, and an outer side in the thickness direction from the tip of the protruding piece 31a. And a hook portion 31b protruding toward the front end. Insert 31 of the present embodiment
Is formed in a long shape extending along the longitudinal direction of the protector body 22, and the other side wall 22b of the protector body 22
Equipped in the upper two places.

The locking hole 33 is provided in the protector cover 2.
3 is closed, a through groove 33a as an opening through which the hook portion 31b of the insertion piece 31 can be inserted and removed.
The hook portion 31b inserted into the through-groove 33a of the locking hole 33 is hooked on the outer opening edge 33b of the through-groove 33a by the engagement of the tip portion 35a of the elastic piece 35 for holding. 33d for urging in the direction to stop
And a through hole 33c provided with The locking hole 33
Are provided at two locations along the side edge of the protector cover 23 corresponding to the insertion piece 31 on the free end side.

The through-groove 33a of the locking hole 33 is shown in FIG.
As shown in (a), the hook portion 31 of the insertion piece 31
groove width W1 so that b can be inserted and removed without interference.
Is set larger than the transverse cross-sectional width W2 of the hook portion 31b. In the case of the present embodiment, the pressing elastic piece 35 is used.
The through hole 33c with which the front end 35a is engaged is an opening having a groove width wider inward than the groove width W1 and connected to both ends of the through groove 33a.

The holding elastic pieces 35 are formed integrally with the inside of the other side wall 22b of the protector body 22 independently of the insertion pieces 31 and the locking holes 33. Are provided so as to be close to the insertion piece 31 at a total of four places. In addition, at the bottom of the protector body 22,
Die-cut hole 3 for integrally molding the holding elastic piece 35
7 is open. As shown in FIG. 5, the pressing elastic piece 35 extends along the insertion piece 31 from the other side wall 22 b and comes into contact with the engaging portion 33 d of the through hole 33 c. And a positioning projection 35b bulging out on the base side of the distal end portion 35a so as to be in contact with the back surface. The positioning projection 35b is
When the protector cover 23 is closed, the protector cover 23 can be supported by contacting the back surface of the protector cover 23.

That is, in the present embodiment, the pressing elastic piece 35 is used.
Is engaged with the leading end 35a of the locking hole 3a.
An engaging portion 33d for urging the hook portion 31b inserted into the through-groove 33a in the direction in which the hook portion 31b is engaged with the opening edge 33b of the locking hole 33 is provided in the through-hole facing the opening edge 33b. It is provided on the opposite side edge of the hole 33c. Further, when the protector cover 23 is closed, the pressing elastic piece 35 is bent between the distal end portion 35a of the pressing elastic piece 35 and the engaging portion 33d, which are in contact with each other.
There is provided an inducing taper for guiding a to the engaging portion 33d. That is, the guiding taper is formed by chamfering the lower edge of the engaging portion 33d and the inner edge of the tip 35a.

Next, the lock mechanism 26 of the wire harness protector 21 described above allows the protector cover 23
Will be described with reference to FIG. First, the protector cover 23 is rotated about the hinge 24 as a center of rotation, and the upper opening portion of the protector main body 22 is closed, so that the insertion piece 31 and the elastic piece 35 for holding down as shown in FIG. And the locking hole 33 are abutted in a predetermined positional relationship. At this time, both side walls 22a and 22b of the protector main body 22 are elastically deformed in a direction in which the upper edge narrows.

Next, as shown in FIG. 4C, the hook 31b of the insertion piece 31 is inserted into the through groove 33a of the locking hole 33. At this time, the pressing elastic piece 3 whose distance from the tip of the hook portion 31b is larger than the groove width of the through hole 33c.
5 is in contact with the back surface of the protector cover 23, but as described above, the lug is formed by chamfering between the lower edge of the engaging portion 33d and the inner edge of the tip 35a. Since the taper is provided, when the protector cover 23 is further rotated in the closing direction, the pressing elastic piece 35 bends toward the insertion piece 31 and the distal end 35a is guided by the engaging portion 33d in the through hole 33c. It is inserted while.

The hook portion 31b is formed in the through groove 33.
a, as shown in FIG. 4D and FIG.
The hook portion 31b is hooked on the opening edge 33b, and the protector cover 23 and the protector body 22 are separated from each other by the opening edge 33b.
Is locked in the detaching direction by the hook portion 31b hooked on the hook.

At this time, since the pressing end 35a of the pressing elastic piece 35 is engaged with the engaging portion 33d in a bent state,
The elastic restoring force urges the hook portion 31b in a direction for hooking the opening edge 33b (a direction in which the opening edge 33b is relatively displaced in the direction of the arrow (c) with respect to the hook portion 31b). Further, both side walls 22a, 2a of the protector body 22 are provided.
2b also urges the hook portion 31b in the direction of engaging with the opening edge 33b by the elastic restoring force in the direction in which the upper edge spreads.

Therefore, the protector cover 23 and the protector main body 22 are connected to the hook portion 3 hooked on the opening edge 33b.
1b is in the locked state locked in the release direction.
In the locked state by the lock mechanism 26, the insertion piece 31 is always urged in the locking direction by the elastic piece 35 for holding, and the hook portion 31b is securely locked to the opening edge 33b of the locking hole 33. Is maintained, the hook portion 31b
Does not accidentally come off from the locking hole 33, and the protector cover 23 and the protector body 22 are stably locked to each other. Further, during the engagement between the hook portion 31b and the opening edge 33b, the urging force of the pressing elastic piece 35 is constantly acting, so that the protector body 22 and the protector cover 23
No rattling occurs between them.

Further, according to the lock mechanism 26, the protector cover 23 and the protector main body 22 are brought into contact with each other in a predetermined positional relationship so that the insertion piece 31 is inserted into the locking hole 33, and the pressing elasticity is reduced. Tip 35a of piece 35
Is guided to the engaging portion 33d by the guiding taper provided between the engaging portion 33d and the protector cover 23 and the protector body 22 can be easily locked.

On the other hand, when releasing the lock state between the protector cover 23 and the protector body 22, FIG.
When the protector cover 23 is displaced relative to the protector body 22 in the state (d) in the direction against the urging force of the pressing elastic piece 35 (the direction opposite to the arrow (c)), the protector cover 23 moves through the engaging portion 35a. The pressing elastic piece 35 is elastically bent, and the side walls 22a and 22b are also elastically deformed in the direction in which the upper edges are narrowed, so that the opening edge 33b of the locking hole 33 is positioned with respect to the hook portion 31b. Relative displacement in the direction of disengagement

Then, as shown in FIG. 4 (c), the hook portion 31b, which has not been engaged with the opening edge 33b, can be pulled out from the through groove 33a of the locking hole 33, and the protector cover 23 is removed. By rotating in the opening direction, the engagement between the protector cover 23 and the protector body 22 can be easily released. That is, in the wire harness protector 21 of the present embodiment, for example, it is only necessary to pull up the side edge on the free end side of the protector cover 23 while bending the side wall 22a of the protector body 22 inward. A jig or the like for releasing engagement with the locking hole 33 is not required, and excellent handling properties can be obtained.

Further, a through groove 33a of the locking hole 33 is provided.
Has a sufficient groove width W to allow the hook portion 31b to be freely inserted and removed.
1, the hook portion 31b can be inserted and removed without interfering with the opening edge 33b when the insertion piece 31 is inserted into and removed from the locking hole 33, and the work of engaging and disengaging the insertion piece 31 and the locking hole 33 can be performed. Is repeated, the hook portions 31b and the locking holes 33 are not unreasonably deformed or damaged.

The hook portion 31b is connected to the locking hole 3
3 is formed independently of the insertion piece 31 and the locking hole 33, and separates the protector cover 23 and the protector body 22 from each other. Even if the protrusion amount L1 (see FIG. 5) of the hook portion 31b that locks in the direction is increased, the operation force at the time of disengagement does not increase, and good engagement and disengagement workability can be secured. .

That is, the protrusion amount L1 of the hook portion 31b
Can be set sufficiently large according to the connection strength required between the protector body 22 and the protector cover 23 irrespective of the elasticity of the pressing elastic piece 35, and the operating force at the time of engagement and disengagement is increased. A large connection strength can be ensured without the need.

Incidentally, the lock mechanism of the present invention is not limited to the configuration of the lock mechanism 26 in the first embodiment, and it goes without saying that various forms can be adopted based on the gist of the present invention. For example, as shown in FIG. 6, the wire harness protector 38 using the lock mechanism 42 according to the second embodiment of the present invention includes a wire harness (not shown) similar to the wire harness protector 21 according to the first embodiment. A substantially gutter-shaped protector body 39 to be housed and a protector cover 40 which is provided on one side wall of the protector body 39 via a thin hinge so as to be openable and closable are integrally formed of an insulating synthetic resin. . Then, when the protector cover 40 is closed, the side edge on the free end side of the protector cover 40 which is brought into contact with the upper edge of the other side wall 39b of the protector body 39 is connected and fixed to the side wall 39b by the lock mechanism 42. .

The lock mechanism 42 includes an insertion piece 44 extending from the tip of the other side wall 39b of the protector body 39, which is one of the constituent members, and a free end side of the protector cover 40, which is the other constituent member. Locking hole 4 provided on the edge
6 and a pressing elastic piece 48 provided on the outside of the other side wall 39b of the protector body 39 so as to be close to the insertion piece 44.

The insertion piece 44 extends from the tip of the other side wall 39b of the protector body 39 in the direction in which the insert piece 44 and the protector cover 40 meet.
And a hook 44b protruding inward in the thickness direction from the tip of the protruding piece 44a. When the protector cover 40 is closed, the locking hole 46 is provided with a through groove 46 a as an opening through which the hook portion 44 b of the insertion piece 44 can be inserted and removed, and the holding elastic piece 4.
8 is engaged with the hook portion 44b inserted into the through groove 46a of the locking hole 46.
And a through hole 46c provided with an engaging portion 46d for urging the hole in a direction to be hooked to the opening edge 46b inside the through groove 46a.

The groove width of the through-hole 46a of the locking hole 46 is set larger than the cross-sectional width of the hook portion 44b so that the hook portion 44b of the insertion piece 44 can be inserted and removed without interference. The through hole 46c with which the distal end portion 48a of the pressing elastic piece 48 engages is formed in the through groove 46a.
This is an opening having a groove width wider outward than the groove width.

The pressing elastic piece 48 is formed integrally with the outside of the other side wall 39b of the protector main body 39 independently of the insertion piece 44 and the locking hole 46, and is provided so as to be close to the insertion piece 44. ing. When the distal end portion 48a of the pressing elastic piece 48 is engaged, the hook portion 44b inserted into the through groove 46a of the locking hole 46 is attached to the opening edge 46b inside the locking hole 46. An engaging portion 46d for urging in the locking direction is provided on an opposite edge of the through hole 46c facing the opening edge 46b. Therefore, the lock mechanism 42 of the first embodiment is different from the lock mechanism 2 of the first embodiment in that the pressing elastic piece 48 is provided outside the other side wall 39b of the protector body 39.
6, but the operation and effect are substantially the same.

Further, in the insertion piece and the locking hole of the above embodiment, the dimension along the longitudinal direction of the wire harness protector is long, but for example, it may be as short as the elastic piece for holding. it can. Further, in the above embodiment, the engaging portion is formed at the opening edge of the through hole communicating with the locking hole. However, for example, an engaging protrusion projecting from the back surface of the protector cover may be used as the engaging portion. it can. Further, the location and number of the locking mechanisms are not limited to the above-described embodiment.

In the above embodiment, one side edge of the protector cover is hinged to the upper edge of one side wall of the protector body, and the protector cover and the protector body are integrally formed. The protector body may be formed separately from the protector body, and both side edges of the protector cover may be connected to the protector body by the lock mechanism of the present invention. Furthermore, the lock mechanism of the present invention is not limited to a wire harness protector, and can be widely applied as a lock mechanism for a pair of components to be connected in abutting relationship with each other. It is also applicable to connection and the like.

[0041]

As described above, according to the lock mechanism of the present invention, a pair of constituent members abut against each other in a predetermined positional relationship.
A hook portion provided at the tip of the insertion piece of one of the constituent members,
When inserted into the locking hole of the other component, the distal end of the pressing elastic piece engages with the engaging portion of the other component to hook the hook on the opening edge of the locking hole. Since the pair of components are urged in the stopping direction, the pair of constituent members is locked by the hook in the detaching direction.

In the locked state of the pair of components, the insertion piece is constantly urged in the locking direction by the pressing elastic piece, and the hook portion is securely locked to the opening edge of the locking hole. Is maintained, the hook portion is not accidentally disengaged from the locking hole, and the pair of constituent members are stably locked to each other.

On the other hand, when the locked state of the pair of constituent members is released, the other constituent member is displaced relative to one constituent member in a direction against the urging force of the pressing elastic piece. Since the pressing elastic piece is elastically bent through the mating portion, and the locking hole is relatively displaced in a direction in which the locking hole is released from the hook portion, the hook portion is moved from the locking hole. It becomes possible to extract, and the engagement between the pair of constituent members can be easily released. Therefore, a jig or the like for releasing the engagement between the hook portion of the insertion piece and the locking hole becomes unnecessary, and excellent handling properties can be obtained.

In addition, the locking hole is an opening having a size large enough to allow the hook portion to be inserted and removed, so that the hook portion can be inserted and removed when the insertion piece is inserted into and removed from the locking hole. It can be inserted and removed without interfering with the opening edge, and there is no unreasonable deformation or breakage of these hooks or locking holes. Further, a pressing elastic piece for urging the hook portion in a direction to be hooked on an opening edge of the locking hole is formed independently of the insertion piece and the locking hole, and a pair of the configuration. Even if the amount of protrusion of the hook portion that locks the member in the disengagement direction is increased, the operation force at the time of disengagement does not increase, and good engagement and disengagement workability can be secured.

[Brief description of the drawings]

FIG. 1 is an overall perspective view showing a state in which a protector cover of a wire harness protector using a lock mechanism according to a first embodiment of the present invention is opened.

FIG. 2 is an overall perspective view of the wire harness protector shown in FIG. 1 with a protector cover closed.

FIG. 3 is an enlarged view of a portion A in FIG. 2;

FIG. 4 is a cross-sectional view for explaining the operation of the lock mechanism shown in FIG.

FIG. 5 is an enlarged view of a portion B in FIG. 4 (d).

FIG. 6 is a sectional view of a main part of a wire harness protector using a lock mechanism according to a second embodiment of the present invention.

FIG. 7 is a partial perspective view of a wire harness protector showing a conventional lock mechanism.

8 is a cross-sectional view of a main part showing a state when the lock mechanism shown in FIG. 7 is engaged and disengaged.

FIG. 9 is an enlarged perspective view of a main part showing damage to the lock mechanism shown in FIG. 7;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 21 Wire harness protector 22 Protector main body (one constituent member) 22a Side wall 22b Side wall 23 Protector cover (the other constituent member) 26 Lock mechanism 31 Insertion piece 31b Hook part 33 Locking hole 33a Through groove 33b Opening edge 33c Through hole 33d Engagement part 35 Elastic piece for holding

Claims (2)

[Claims] 1. A pair of components is locked by engaging a hook provided at the tip of an insertion piece extended to one component with a locking hole provided in the other component. A lock mechanism, wherein the locking hole is an opening through which the hook part can be inserted and removed, and a tip part of the insertion piece near the hook part has an engaging part of the other component member. And a pressing elastic piece that urges the hook portion inserted into the locking hole in a direction to be hooked on an opening edge of the locking hole is provided. Locking mechanism. 2. A press-fit elastic piece is bent between a tip end of the press-fit elastic piece and the engaging portion when a pair of constituent members abut against each other in a predetermined positional relationship, and a tip end portion is bent. The lock mechanism according to claim 1, further comprising an invitation taper for guiding to the engagement portion.