JP2002195228A - Fixing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To overcome the problem of a prior art such that a bur or the like is produced by an impactive force generated in the restoration of an elastic deformation, when two members are coupled by the elastic deformation using a latching claw and a latching hole. SOLUTION: A fixing guide member having a push-in section provided with the outside diameter almost same with that of the latching claw at the same position of the projection of the latching claw is used for coupling a plate having the latching claw to a case having the latching hole. A guide rod is fitted into a guide hole at the center of the fixing guide member. For fixing the plate to the case, the fixing guide member is butted on the plate and lowered, to enter into an opening section by elastically deforming the sidewall of the case 1 by the latching claw. When the upper face of the latching claw is positioned slightly lower than the upper edge of the opening, a plate-holding rod slowly raises the fixing guide member by holding the upper face, to enable slow coupling.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a first member provided with a locking claw and a second member provided with a locking hole for engaging with the locking claw.
The present invention relates to a fixing device that prevents burrs or the like from being generated when the locking claw and the locking hole are elastically connected to each other when being fixed to the member.

[0002]

2. Description of the Related Art Various means for fixing two members have been conventionally proposed. Among them, means for automatically connecting a first member by pushing the first member into a second member is provided on one side member. Means for fixing two members provided with locking claws and provided with locking holes for engaging the claws on the other side member by utilizing elastic deformation of each other may be adopted.

For example, as shown in FIG. 11, when a synthetic resin or metal plate 72 is fixed to an opening of a cylindrical case 71 made of synthetic resin or metal, in the example shown in FIG. Positioning protrusions 7 on the left and right in the figure
3 are provided, and a total of four locking projections 75 are provided symmetrically. A locking claw 76 extending outward is formed at the lower end of each locking projection 75. On the other hand, the opening 77 of the case 71
Are provided with positioning notches 78 for engaging with the positioning projections 73 of the plate 72 on the left and right sides in the figure, and a locking hole 80 is provided at a position facing the locking projection 75 of the plate 72.
Is provided.

As a result, this plate 72 is
When fixing the plate 72 to the opening 77, the relative positioning between the plate 72 and the case 71 is performed, and then, for example, the plate 72 is pushed downward by a pusher 81 as shown in FIG. At this time, in the illustrated embodiment, since the locking claw 76 of the plate 72 is supported by the wall portion 82 provided on the side of the claw and is formed relatively firmly, the locking claw 76 is The plate 72 is inserted into the inside while the side wall 83 of the 77 is pressed strongly and expanded. The state at this time is shown in a partially enlarged sectional view in FIG. 13, and the operation is performed in the order of (a), (b), and (c) in FIG.

That is, when the plate 72 is pushed downward in the figure by the pusher 81 as described above, FIG.
As shown in (a), the locking pawl 76 of the plate 72 pushes and expands the side wall 83 of the opening 77 of the case 71 while
When the upper end surface 84 of the locking claw 76 substantially coincides with the upper end edge 85 of the locking hole 80 as shown in FIG. Therefore, the shape returns to the original wall shape by the elastic force of the side wall 83. Therefore, the locking claws 76 of the plate 72 enter into the locking holes 80 of the case 71 as shown in FIG. At this time, since the positioning protrusion 73 of the plate 72 and the positioning notch 78 of the case 71 are fitted, accurate positioning is performed, and both are fixed in a predetermined state.

[0006]

SUMMARY OF THE INVENTION
In the fixing means by the engagement of the locking holes 80 with the locking holes 80, in the state shown in FIG.
A strong force acts between the upper end 84 of the upper end and the upper end 85 of the locking hole 80, for example, as shown in FIG.
When a burr is present in a portion or the like, the burr is scraped off. When the returning force is extremely large, the inner surface of the locking hole 80 or the side of the locking claw 76 is cut off in accordance with the mutual strength of the materials. Debris was sometimes generated.

For this reason, when the component assembled in this way is a component provided in a fluid flow passage such as a lubricating member of a machine, for example, the burr 8 described above is used.
6 may be mixed into the fluid, which may be carried to other places and hinder the operation of the device. The occurrence of such burrs causes a similar problem not only in the lubricating device as described above but also in many devices.

As a countermeasure, if there is a possibility that burrs may be generated by machining the locking hole 80, the case 7
It is necessary to remove the burrs existing on the peripheral edge of the locking hole 80 after the molding of the predetermined shape, or to perform a deburring operation by air blow or the like. However, performing such a deburring operation on all of the locking holes 80 requires not only simply increasing the number of manufacturing steps but also performing a complicated operation, and requires much labor.

In the case where the material is scraped when the locking claw 76 engages with the locking hole 80 with an extremely strong force as described above, a piece of the material is generated.
As shown in FIG. 4B, a chamfered portion 87 is formed at an inner corner of the upper edge 85 of the locking hole 80 of the case 71 so that the locking claw 76 engages with the locking hole 80 as described above. It is conceivable that the shock is guided by the chamfered portion 87 to reduce the impact. However, such a chamfered portion 87 adds more man-hours after molding the container, and causes an increase in product cost.

Therefore, according to the present invention, it is not necessary to perform a deburring operation on a locking hole into which a locking claw is fitted, and it is not necessary to form a chamfer for reducing an impact at the time of fitting. It is an object of the present invention to provide a fixing device that does not generate burrs when a locking claw is fitted into a locking hole by a simple device.

[0011]

According to the present invention, in order to solve the above-mentioned problems, the invention according to claim 1 includes a locking claw provided in a first member and a locking hole provided in a second member. A locking device that engages by elastic deformation of one of the members, wherein the locking claw and the locking hole do not engage when the first member or the second member moves in a direction perpendicular to the elastic deformation direction. A fixed guide member that moves to a first position for holding the locked state and a second position for releasing the opposed state and resiliently engaging the locking claw and the locking hole. It is a fixing device that performs

Further, in the invention according to claim 2, the fixed guide member has a guide surface which is substantially continuous with the inclined surface of the locking claw when its tip abuts on the tip of the locking claw, The fixing device according to claim 1, wherein an elastic deformation member is brought into contact with the guide surface at a position.

The invention according to claim 3 further comprises a guide rod which fits into a center hole of the fixed guide member and guides the movement of the fixed guide member, wherein the guide rod moves the fixed guide member to the second position. When moving, the first member or the second member
3. The fixing device according to claim 2, wherein the member is pressed.

According to a fourth aspect of the present invention, a tip end of the fixed guide member is provided with a tapered surface for guiding the elastically deformed member to gradually move at least in a direction in which the deformation is reduced. A fixing device according to claim 1.

According to a fifth aspect of the present invention, a part of the fixed guide member penetrates into the locking hole at the first position, and the penetrated portion has a surface substantially equal to the surface of the second member. A locking hole provided with a locking claw by the locking surface at the first position, and releasing the locking claw in response to the movement to the second position; And a locking claw is engaged with the fixing device.

[0016]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows an embodiment in which a plate 2 is fixed to a case 1 in the same manner as the one shown in FIG. 11 in the fixing device according to the present invention. Guide member 3 and guide rod 4
Is shown. The operation of this device is shown in FIG.
(A) to (e) are shown in order.

The structure of the case 1 and the plate 2 to be fixed thereto in the embodiment shown in FIG. 1 is the same as in FIG. 11, in which the opening 5 of the case 1 is formed with a locking hole 6 and a positioning notch 7, The plate 2 has four locking projections 9 each having a locking claw 8 at the tip and positioning projections 10 on the left and right in the figure. As shown in a plan view of the plate 2 in FIG. 3A and a plan view of the case 1 in FIG. The position of the locking hole 6 is set so that the plate 2 is fixed to a position where the plate 2 can be engaged and at a predetermined height in the opening 5 of the case 1.

On the other hand, as shown in FIG. 1, the fixed guide member 3 has the arm 11 at the same position as the locking projection 9 of the plate 2.
And a push portion 12 projecting downward as shown in the drawing. The length of the arm 11 and the height of the pushing portion 12 are determined, for example, when the fixed guide member 3 is put on the plate 2 as shown in FIG.
2 is set so that the lower end can contact the upper surface 13 of the locking claw 8. The outer periphery of the pushing portion 12 is the plate 2
Is set to be slightly larger than the outer circumference of the locking claw 8, and the lower end thereof is provided with a tapered surface 19 that expands upward from the portion where the upper end edge of the locking claw 8 is located. It is set so as to be substantially smoothly continuous with the inclination of the pawl.
Further, an external operation unit 20 having a guide hole 15 into which the guide rod 4 is fitted as shown in FIG. 1 is formed at the center of the fixed guide member 3, and this portion is held by the external operation device 21. This allows the fixed guide member 3 to be pushed in and pulled out as described later.

In this embodiment, the fixed guide member 3 and the guide rod 4 as described above are used. When the plate 2 is mounted on the case 1, the operation shown in FIG. 2 is performed. That is, as shown in FIG. 2A, the tip of the pushing portion 12 of the fixed guide member 3 is
The fixed guide member 3 is put on the plate 2 so as to abut on the plate 2, and the holding rod 4 is inserted into the guide hole 15 of the fixed guide member 3.
Is fitted. In this state, after the locking claw 8 of the plate 2 is disposed above the locking hole 6 of the case 1, the fixed guide member 3 is pushed in from the upper surface side by the external operation device 21. As a result, the locking claw 8 of the plate 2 is
The plate 2 is inserted into the opening 5 by strongly pressing the side wall 17 of the opening 5 radially outward to expand and deform. A sectional view at this time is shown in FIG. 2A, and a state in which the locking claws 8 of the plate 2 are pushed in while enlarging and deforming the side wall 17 of the opening 5 of the case 1 is shown in FIG. .

The fixed guide member 3 is further pushed in, as shown in FIG.
As shown in (b), the stopper 13 stops with the upper surface 13 of the stopper 8 being slightly below the upper edge 18 of the stopper hole 6. In the process of pushing in the plate 2, the upper end edge portion of the side wall 17 attempts to reduce the diameter after passing through the locking claw 8 which is the largest diameter portion of the plate 2. 5 is formed, and a tapered surface 19 extending from the outer periphery of the upper surface 13 of the locking claw 8 is formed at the tip of the pressing portion 12 as shown in a partially enlarged view of FIG. 17 is expanded along the outer peripheral surface of the pushing portion 12 while being smoothly guided by the tapered surface 19. As a result, the locking claw 8 does not come into strong contact with the side wall 17 and therefore can be kept in a state where it does not receive a large force from the side. In the present invention, the position to be held in this state is opposed to each other when the locking claw and the locking hole are not engaged when the first member and the second member are relatively moved in the direction perpendicular to the elastic engagement direction. This is referred to as the “first position” that is maintained in the state.

Next, as shown in FIG. 2 (c), the fixed guide member 3 is raised by the external operation device 21 while the upper surface of the plate 2 is pressed by the guide rod 4. At this time, the upper end of the side wall 17 is
Strongly contact with the outer peripheral wall of the main body, and the state of the enlarged diameter is maintained. Thereafter, as shown in FIG. 2D, when the lower end of the pushing portion 12 of the fixed guide member 3 is raised to a position higher than the opening of the case 1, as shown in FIG.
Is returned to the original shape by the elastic force, and the engagement between the locking claw 8 and the locking hole 6 is performed. At this time, the side wall 17 is
Since there is no contact with a strong force, the conventional shock-absorbing engagement is not performed, and the occurrence of burrs and the like can be prevented. In particular, in the above embodiment, the side wall 17
The diameter of the upper end is reduced while being guided by the tapered surface 19 of the push-in portion 12, so that the conventional impact at the time of engagement can be reliably prevented. In the present invention, the position at which the fixed guide member moves so that the locking claw is engaged with the locking hole is referred to as a "second position" in the present invention.

Thereafter, as shown in FIG. 2 (e), the guide rod 4 is raised together with the fixed guide member 3 and is separated. As a result, as shown in a plan view in FIG. 4B, the locking claws 8 of the plate 2 engage with the locking holes 6 of the case 1, and the plate 2 is fixed at a predetermined position of the case 1. . A series of operations as shown in FIG. 2 can be automated by associating the operation mechanism of pushing in and pulling up the fixed guide member 3 by the external operation member 21 and lowering and raising the operation rod 4, thereby producing It can be easily incorporated into a line.

In the above embodiment, an example was shown in which the plate 2 provided with the locking claws 8 was fixed to the case 1 provided with the locking holes 6, but the member for fixing the plate was the case described above. The present invention is not limited to this, and can be similarly applied to various members, and can be similarly applied to a case where the member fixed to the case is other various members other than the above-described plate. Further, the present invention can be applied in the same manner to the technical field of fixing the first member and the second member by the locking holes of the locking claws currently used in various fields.

For example, in the above-described embodiment, a locking hole is provided for the case as the first member, and a locking claw is provided for the plate as the second member inserted and fixed to the first member. However, the same applies to the case where the locking claw is provided for the first member as shown in FIG. 6 and the locking claw is provided for the second member which is inserted and fixed to the first member. Then, the present invention can be applied.

That is, a locking claw 22 is protruded in the vicinity of the upper end of the first member 21, and a second member 24 having a locking hole 23 engaged with the locking claw 22 is inserted and fixed beforehand. When the upper surface of the second member 24 is pressed by the pusher 26 as shown in FIG. 6A with the fixed guide member 25 having the guide projection 28 abutting on the lower end surface of the locking claw 22 as shown in FIG.
The second member 24 is pushed into the first member 21 by the force while the side wall 27 of the second member 24 expands in diameter along the locking claw 22. As shown in the figure, the first edge of the locking hole 23 is located slightly lower than the lower edge of the locking claw 22.
Is stopped at the position (2), and then moves to the second position where the fixed guide member 25 is removed as shown in FIG. The pusher 26 is also removed. At this time, the connection between the locking claw 22 and the locking hole 23 and the operation of the side wall 27 are the same as those shown in FIG. 2, and both members can be fixed without strong impact at the time of this connection. There is no generation of burrs and the like unlike the conventional one.

In each of the above embodiments, an example is shown in which the fixed guide member is brought into contact with the locking claw provided on one member to guide the diameter increase of the member provided with the other locking hole. For example, as shown in FIG. 7, the projection 34 of the fixed guide member 33 is previously fitted into the locking hole 32 of the first member 31, and at this time, the inner surface of the first member 31 and the surface of the projection 34 are substantially the same. And at this time, the side wall 3 of the first member 31
5 is pressed from the outer periphery by the main body 36 of the fixed guide member 33.

Here, when the second member 38 provided with the locking claw 37 is pushed into the first member 31 by the pusher 39, the locking claw 37 is inserted while bending inward. After that, FIG.
As shown in (2), the locking pawl 37 is pushed down until the upper surface thereof is positioned below the upper edge of the locking hole 32, stopped, and the first position is maintained. Next, the fixed guide member 33 is gradually expanded as shown in FIG. As a result, the locking claw 37 expands in diameter by its elastic force in response to the diameter-increasing movement, and the locking claw 37 moves with respect to the locking hole 33 without giving an impact to the locking hole 32 and its peripheral portion. To engage the fixed guide member 33
The first member 31 and the second member 38 are coupled to each other by moving the projection 34 to the second position removed from the locking hole 32.

In the above embodiment, the first
Although the example in which the second member provided with the locking claw is inserted into and coupled to the member is shown, for example, as shown in FIG.
The second member having the locking hole 43 with respect to the first member 42 having the
The present invention can be applied to the case where the members 44 are inserted and connected. That is, in this example, a locking claw 41 is protruded from the outer peripheral side near the upper end of the first member 42 and is connected to a locking hole 43 provided in the second member 44. The projection 47 of the fixed guide member 46 is fitted into the locking hole 43 of the second member 42 at a position substantially flush with the inner surface of the second member 44. At this time, the side wall 4 of the second member 44
8 is pressed from the outer periphery by the main body 49 of the fixed guide member 46.

In this state, when the second member 44 provided with the locking hole 43 is pushed into the first member 42 provided with the locking claw 41 by the pusher 40, the locking claw 41 is bent inward while the second member 44 is bent inward. The two members 44 are inserted. Thereafter, as shown in FIG. 7A, the lower edge of the locking hole 43 is pushed to a position slightly lower than the lower edge of the locking claw 41, stopped, and held at the first position of the fixed guide member. You. Next, FIG.
By gradually expanding the fixed guide member 46 as shown in FIG.
1 is moved, and the locking claw 41 is engaged with the locking hole 43 without giving an impact to the locking hole 43 and its peripheral portion,
The first member 42 and the second member 44 are connected by moving the protrusion 47 of the fixed guide member 46 to the second position removed from the locking hole 43. Even with such a configuration, when the first member and the second member are combined as in the above-described embodiment,
The occurrence of burrs and the like due to the impact of both can be prevented.

The present invention can be further applied to an apparatus as shown in FIGS. That is, in this embodiment, a second member 53 such as a hermetic plug is finally inserted into an opening 52 provided in the main body of the first member 51 such as a container as shown in FIG. Yes, opening 52
A single locking claw 54 is formed in the outer peripheral wall near the opening end. On the other hand, an elastic tongue 55 protruding to the side of the second member 53 such as a hermetic plug is provided with a locking hole 56, and the locking claw 54 is engaged with the locking hole 56 to thereby form the second member 53.
Is fixed to the first member 51 in a retaining state.

In this embodiment, first, as shown in FIG. 9A, the first member 51 and the second member 53 are separated, and the second member 53 is separated from the fixed operating device 57.
Also, an initial state in which the fixed guide member 58 is not attached to the first member 51 is shown. From this state, FIG.
As shown in (b), the second member 53 is fixed to the operation device 57.
To the locking claw 5 of the first member 51 by the arm 60.
The lower end of the fixed guide member 58 is brought into contact with the upper surface of the fourth member 4 by moving it. In addition, the second member 5 is attached to the fixed operation device 57.
Various means can be adopted for supporting the third member 3. For example, an air passage 61 is provided in the fixed operation device 57, and the inside of the second member 53 is suctioned while the lower end of the second member 53 is supported on the support portion 62. However, the second member 53 can be supported by being attracted to the support portion 62.

Next, as shown in FIG. 9C, the fixing operation device 57 is raised, and the O-ring 59 is compressed by compressing the second member 53 such as a hermetic stopper against the opening 52 of the first member 51 main body such as a container. Insert while sealing. At this time, the distal end of the elastic tongue 55 provided on the second member 53 is guided by the inclined surface of the locking claw 54 and expands, and when further raised, the outer periphery of the fixed guide member 58 located above the locking claw 54 It is guided and expanded. Thereafter, as shown in FIG.
The insertion of the locking hole 56 is stopped at the first position where the upper edge of the locking hole 56 slightly exceeds the upper surface of the locking claw 54.

From this state, the arm 60 is operated to move the fixed guide member 58 upward as shown in FIG. Thereby, the tip of the elastic tongue 55 is gradually closed,
In the illustrated embodiment, since the tapered portion 63 is formed on the inner surface of the upper end portion of the elastic tongue portion 55, the elastic tongue portion 55 is gradually closed along the tapered portion 63, and the fixed guide member 58 is not shown. When ascending to the second position shown in FIG. 10B, the locking claw 54 engages with the locking hole 56.

Thereafter, the arm 60 is further raised, the supply of the suction air pressure to the fixed operating device 57 is stopped, and the fixed operating device 57 and the second member 53 are separated from each other. And evacuate. The first member 51, such as a container, to which the second member 53 is automatically fixed as described above, enters the state shown in FIG. 10C and moves to the next step. As described above, the fixing of the second member to the first member can be performed without generating any impact, and thus can be performed without generating burrs and the like as in the related art. Such fixing can be performed.

In the above embodiment, the first member is provided with the locking claw,
Conversely, in the case where the second member is provided with the locking hole, the same applies to the case where the first member is provided with the locking hole and the second member is provided with the locking claw. In addition, it goes without saying that the present invention can be applied to various devices by using the first member and the second member as various devices and members in addition to the embodiments described above.

[0036]

The invention according to claim 1 of the present application is configured as described above, so that the locking claw provided on the first member and the locking hole provided on the second member can be connected to any one of the members. When the fixing is performed by the elastic deformation of the locking claw, the locking claw and the locking hole engage from the first position where the fixed guide member holds the locking claw and the locking hole facing each other. When moving to the position 2, since the movement can be reliably guided by the fixed guide member, shocking movement can be prevented, and occurrence of burrs and the like due to shocking movement unlike the conventional one can be prevented. Can be prevented.

The invention according to claim 2 further comprises a guide rod which fits into a center hole of the fixed guide member and guides the movement of the fixed guide member, and the guide rod moves the fixed guide member to the second position. When moving, the first member or the second member
The elastically deformable member is guided by the guide surface when the elastically deformable member returns to its original position and the locking claw engages with the locking hole. By doing so, the elastic member is guided more smoothly,
Shocking movement can be prevented.

The invention according to claim 3 further comprises a guide rod which fits into a center hole of the fixed guide member and guides the movement of the fixed guide member, and the guide rod moves the fixed guide member to the second position. When moving, the first member or the second member
The fixing device according to claim 2, wherein the fixed member is pressed by the guide member, so that the predetermined movement of the fixed guide member can be surely performed by the guide rod, and the first member or the second member can be fixed by the guide rod. By pressing the second member, the fixed guide member can be easily removed.

According to a fourth aspect of the present invention, the distal end of the fixed guide member is provided with a tapered surface for guiding the elastically deformed member so as to gradually move at least in a direction in which the deformation is reduced. The elastically deformable member is guided by the tapered surface when the elastically deformable member returns to its original position and the engaging claw and the engaging hole are engaged with each other. Further, shocking movement can be prevented.

According to a fifth aspect of the present invention, the fixed guide member partially penetrates into the locking hole at the first position, and the penetrated portion is substantially the same as the surface of the second member. A locking hole provided with a locking claw by the locking surface at the first position, and releasing the locking claw in response to the movement to the second position; 2. The fixing device according to claim 1, wherein the distal end surface moves when the elastically deformable member returns to its original position and the locking claw engages with the locking hole. Since the elastically deformable member returns to its original position in time, the movement of the distal end surface can be prevented from moving by impact.

[Brief description of the drawings]

FIG. 1 is a perspective view showing each member before a fixing operation in an embodiment of the present invention.

FIG. 2 is a view sequentially showing a fixing operation of the embodiment.

FIG. 3 is a plan view showing a state where a first member and a second member of the embodiment are separated.

FIG. 4 is a plan view showing a state where the first member and the second member of the embodiment are fixed, (a) shows a state immediately before fixing,
(B) shows the state after fixing.

FIG. 5 is a partially enlarged sectional view showing a state immediately before a locking claw and a locking hole of the embodiment are fitted.

FIG. 6 is a sectional view showing another embodiment of the present invention;
(A) shows a state immediately before fixing, and (b) shows a state after fixing.

FIGS. 7A and 7B are cross-sectional views showing still another embodiment of the present invention, wherein FIG. 7A shows a state immediately before fixing, and FIG. 7B shows a state after fixing.

FIG. 8 is a sectional view showing still another embodiment of the present invention;
(A) shows a state immediately before fixing, and (b) shows a state after fixing.

FIGS. 9A and 9B are cross-sectional views showing the operation of still another embodiment of the present invention, wherein FIG. 9A shows each member before the operation, and FIG. 9B shows the first member and the second member moving for connection. Indicates the state immediately before,
(C) shows a state immediately before fixing.

FIG. 10 is a sectional view showing the next operation of the embodiment,
(A) shows a state during the fixing, (b) shows a state immediately after the fixing, and (c) shows a state after the fixing is completed.

FIG. 11 is a perspective view showing each member before a fixing operation in a conventional example.

FIG. 12 is a cross-sectional view of the entire device showing a fixing operation in the conventional example, where (a) shows a state before fixing and (b).
Indicates a state after fixing.

FIG. 13 is a partially enlarged cross-sectional view showing a fixing operation in the conventional example, where (a) shows a state in which the plate is being inserted into the case, (b) shows a state immediately before fixing,
(C) shows the state after fixing.

14A and 14B are enlarged cross-sectional views showing a state at the time of connection in the same conventional example, in which FIG. 14A shows a state in which burrs are generated by a shocking movement of a locking claw, and FIG. An example in which a chamfered portion is formed for prevention is shown.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Case 2 Plate 3 Fixed guide member 4 Guide rod 5 Opening 6 Locking hole 7 Notch for positioning 8 Locking claw 9 Locking protrusion 10 Positioning protrusion 11 Arm 12 Pushing part 13 Upper surface 15 Guide hole 17 Side wall 18 Upper edge 19 Tapered surface

Claims (5)

[Claims] 1. A fixing device for engaging a locking claw provided on a first member with a locking hole provided on a second member by elastic deformation of any of the members. A first position in which the locking claw and the locking hole are not engaged with each other when the first member or the second member is moved in the right-angle direction, and the first position is held in an opposed state; A fixing device comprising: a fixing guide member that moves to a second position where the claw and the locking hole elastically engage. 2. The fixed guide member has a guide surface that is substantially continuous with the inclined surface of the locking claw when its tip abuts on the tip of the locking claw, and the guide surface is elastically deformed at the first position. The fixing device according to claim 1, wherein the member abuts. 3. A guide rod which is fitted in a center hole of the fixed guide member and guides the movement of the fixed guide member, wherein the guide rod is a first member when the fixed guide member is moved to a second position. The fixing device according to claim 2, wherein the fixing member presses the second member. 4. A tip end of the fixed guide member is provided with a tapered surface for guiding the elastically deformed member so as to gradually move at least in a direction in which the deformation is reduced. 2. The fixing device according to 1. 5. A part of the fixed guide member penetrates into the locking hole at the first position, and the penetrated part has a distal end surface at a position substantially coinciding with the surface of the second member. Receiving the locking claw by the distal end surface at the first position, releasing the elasticity of the locking claw corresponding to the movement to the second position, and engaging the locking hole with the locking claw. The fixing device according to claim 1, wherein: