JPH11125757A - Fastening structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the fastening structure among plural parts and base part in which reusing property is considered and which facilitate works at the time of dismantling and disassembly. SOLUTION: In a fastening structure 1, grooves 5 having prescribed depths are formed on the rear side of the base part 2 in the surrounding and in the vicinity of the part 3 stickingly fixed to the base part 2. At the time of performing a dismantling destruction, when dismantling destructing forces are imparted on them from the upper side of the part and from the lower sides being both sides across the part 3 and outer sides than the groove parts 5, the imparted dismantling destructing forces are concentrated at the groove parts 5 and the part 2 is easily dismantlingly destructed from the groove parts 5 with small forces. As a result, when the part 3 is stickingly fixed to the base part 2, the part 2 can be dismantled from the groove part 5 with smaller destructing forces while preventing fine broken pieces of the part 2 from being scattered and also when the dismantling destructing force at the time of the destruction is impressed on the part from upward, the dismantling destruction is easily performed by using an upwardly assembled automatic machine and the sharing of dismantling installations is made possible.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a fastening structure,
More specifically, the present invention relates to a fastening structure in which a plurality of parts that facilitate disassembly and disassembly operations are fastened and fixed and assembled.

[0002]

2. Description of the Related Art Conventionally, bonding and snap-fit fastening structures, which are inexpensive, quick and simple fastening methods in the assembly process, have been used in various products and units such as office equipment and home electric appliances.

[0003] The snap-fit fastening structure is configured to bend by utilizing the elasticity of a resin or a sheet metal and to hook a claw on a mating part.

For example, in an optical writing unit used in a copying machine, a printer or the like, a sheet metal spring material is used for fixing an optical component, and a hole (a star shape or the like) of the sheet metal is cut into a convex portion of a base component. I'm making it.

[0005] For this reason, in the assembly, it is only necessary to press the spring material from above with a tool, so that the assembling work can be made simple and easy.

However, when recycling is considered due to environmental problems, the unit cannot be disassembled unless the nail caught on the other party is released, so it is difficult to perform the operation manually, and it is more difficult for an automatic machine. Work has been done.

[0007] Similarly, the only way to dismantle the bonded and fixed parts is to destroy them.
It was a very difficult task.

[0008] Screws can be assembled and disassembled. However, when dismantling, a tool suitable for the type of screw is required. In the work, there is a problem that the worker is confused.

Therefore, in order to facilitate the disassembly of the snap-fit, a snap-fit coupling structure described in, for example, JP-A-7-180711 has been proposed. This snap-fit coupling structure is a snap-fit structure for fixing two members each having a claw portion on one side and having a claw locking portion on a counterpart, wherein a tool is provided near a claw locking portion of the counterpart corresponding to the claw portion. It is characterized by having a hole for inserting a hole. That is, the provision of the holes for the tools facilitates the release of the engaged claws.

[0010]

However, in such a conventional fastening structure, a portion which is frequently disassembled and disassembled for maintenance or the like is formed with a screw fastening or a snap-fitting structure, so that the screw is used as a tool. It can be easily disassembled and disassembled by removing it with a snap-in or returning it to the direction of releasing the snap fit claws that are engaged in the assembled state, but the parts assembled with high precision (for example, optical parts ) Are fastened by snap-fit, the fastening force needs to be increased, and the assembled claws are firmly engaged with each other, and it is difficult to return the claws to the release direction.

The snap-fit coupling structure described in the above-mentioned Japanese Patent Application Laid-Open No. Hei 7-180711 is limited to the release of a meshed claw. However, there is a problem that it is difficult to apply and lacks versatility.

Therefore, the invention according to claim 1 is provided at a predetermined position of the base component around the component fastened to the base component.
By forming a stress concentration portion having a predetermined shape that concentrates the demolition destruction force applied to the base component at the time of destruction and destruction, the destruction destruction force applied at the time of destruction and destruction is concentrated on the stress concentration portion formed on the base component. The present invention aims to provide a fastening structure in which a base part is disassembled at the stress concentration part, and a plurality of parts fastened to the base part can be easily and easily disassembled, and can also be operated in an automated facility. And

According to a second aspect of the present invention, the base component is formed of a predetermined resin, and the stress concentration portion is processed and formed as a thin portion thinner than other portions of the base component. In addition to easily forming the parts and stress concentration parts, the disassembly breaking force given at the time of dismantling is concentrated on the stress concentration parts formed on the base parts, and the base parts are dismantled at the stress concentration parts, and the base parts are disassembled. It is an object of the present invention to provide an inexpensive fastening structure that can easily and easily disassemble a plurality of fastened parts and can also perform work in an automated facility.

According to a third aspect of the present invention, the base part and the stress concentration part are formed by forming the base part with a predetermined resin, and processing and forming the stress concentration part as a punching part penetrating the base part. In addition to the simple formation, the disassembly destructive force given at the time of disassembly and destruction is concentrated on the stress concentration part formed on the base part, the base part is disassembled at the stress concentration part, and a plurality of parts fastened to the base part It is an object of the present invention to provide an inexpensive fastening structure which can be easily and easily disassembled and can be operated with an automated facility.

According to a fourth aspect of the present invention, the base component is an optical base, and the component is an optical component, which is fastened to the optical base by bonding and fixing. It is an object of the present invention to provide a fastening structure that can be fixed well and can be easily disassembled and broken.

According to a fifth aspect of the present invention, the base component is an optical base, and the component is an optical component, which is fastened to the optical base by screw fixing, so that an optical component such as a lens can be precisely formed. It is an object of the present invention to provide a fastening structure that can be fixed well and can be easily disassembled and broken.

According to a sixth aspect of the present invention, the base component is an optical base, wherein a predetermined claw engaging portion is formed at a predetermined position around the component, and the component is an optical component, By being fastened to the base portion by a fastening member having a predetermined elasticity and having a claw that meshes with the claw locking portion of the base component, an optical component such as a lens can be more accurately fixed and easily. It is an object of the present invention to provide a fastening structure that can be dismantled and broken.

According to a seventh aspect of the present invention, the stress concentration portion is formed on the base component at the same time when the component is fastened and fixed to the base component, so that the stress concentration portion can be formed easily and inexpensively. The disassembly breaking force to be applied is concentrated on the stress concentration portion formed on the base component, the base component is disassembled at the stress concentration portion, and a plurality of components fastened to the base component can be disassembled easily and easily, Further, it is an object of the present invention to provide an even cheaper fastening structure that enables work with automation equipment.

According to an eighth aspect of the present invention, a stress concentration portion having a predetermined shape for concentrating a predetermined disassembly breaking force applied to a component at the time of disassembly breaking is formed near a fastening position of the component to the base component. It is an object of the present invention to provide a fastening structure capable of dividing a part and a base part at the time of disassembly and destruction, dividing the part in a more reusable state, and further improving recyclability. The purpose is.

According to a ninth aspect of the present invention, an assembly reference portion having a predetermined shape is formed outside the stress concentration portion of the base component to indicate an assembly reference when the component is assembled when the base component is reused. This allows multiple parts fastened to the base part to be easily and easily dismantled, and also allows for the use of automation equipment. An object of the present invention is to improve the assemblability and to provide a fastening structure with even better reusability.

According to a tenth aspect of the present invention, a disassembly target is disposed at a predetermined position of a component in which a stress concentration portion is formed in a surrounding base component of a plurality of components or at a predetermined position of a base component surrounding the component. By giving a predetermined disassembly mark indicating that a part is a disassembly, at the time of disassembly and destruction, the operator can easily identify the part to be dismantled and destroyed and appropriately dismantle and destroy only the parts for disassembly and destruction. It is an object of the present invention to provide a fastening structure capable of improving the efficiency of dismantling and destruction work.

[0022]

According to a first aspect of the present invention, there is provided a fastening structure for fastening a plurality of components to a base component by a predetermined fastening method. The object is achieved by forming a stress concentration portion having a predetermined shape for concentrating a predetermined destructive breaking force applied to the base component at the time of disassembly and destruction at a predetermined position of the surrounding base component.

According to the above configuration, a stress concentration portion having a predetermined shape is formed at a predetermined position of the base component around the component fastened to the base component, for concentrating the demolition breaking force applied to the base component at the time of demolition and destruction. Therefore, the disassembly breaking force applied at the time of disassembly breaking can be concentrated on the stress concentration portion formed on the base component, and the base component can be disassembled at the stress concentration portion, and a plurality of fastenings to the base component can be performed. The parts can be easily and easily disassembled, and can be operated in an automated facility.

In this case, for example, as described in claim 2, the base component is formed of a predetermined resin, and the stress concentration portion is a thin portion thinner than other portions of the base component. It may be processed and formed as.

According to the above configuration, the base component is formed of a predetermined resin, and the stress concentration portion is processed and formed as a thin portion thinner than other portions of the base component.
The base component and the stress concentration portion can be easily formed, and the disassembly breaking force given at the time of dismantling is concentrated on the stress concentration portion formed on the base component, and the base component is disassembled at the stress concentration portion. Thus, a plurality of parts fastened to the base part can be disassembled inexpensively, easily and easily, and can also be operated in an automated facility.

Further, for example, as set forth in claim 3, the base component is formed of a predetermined resin, and the stress concentration portion is processed and formed as a punched portion penetrating the base component. Is also good.

According to the above construction, the base component is formed of a predetermined resin, and the stress concentration portion is processed and formed as a punched portion penetrating the base component. And can be formed into
The disassembly breaking force given at the time of dismantling is concentrated on the stress concentration portion formed on the base component, and the base component can be disassembled at the stress concentration portion. Easily and easily dismantled,
In addition, it is possible to work with an automated facility.

Further, for example, the base component may be an optical base, and the component may be an optical component, and may be fastened to the optical base by adhesive fixing.

According to the above configuration, the base component is an optical base, and the component is an optical component, which is fastened to the optical base by bonding and fixing, so that the optical component such as a lens is accurately fixed. While being able to
It can be easily dismantled and destroyed.

Also, for example, the base component may be an optical base, and the component may be an optical component, and may be fastened to the optical base by screw fixing.

According to the above configuration, the base component is the optical base, and the component is the optical component, which is fastened to the optical base by screw fixing, so that the optical component such as a lens is fixed with high precision. While being able to
It can be easily dismantled and destroyed.

Further, for example, as set forth in claim 6, the base component is an optical base, and a predetermined claw locking portion is formed at a predetermined position around the component.
The component may be an optical component, and may be fixed to the base portion by a fastening member having predetermined elasticity and having a claw that meshes with the claw locking portion of the base component.

According to the above arrangement, the base component is an optical base, and a predetermined claw engaging portion is formed at a predetermined position around the component, and the component is an optical component, and Since it is supposed to be fastened to the base by a fastening member having elasticity and having a claw that meshes with a claw locking portion of the base component, optical components such as a lens can be more accurately fixed and easily. Can be demolished and destroyed.

Further, for example, as described in claim 7, the stress concentration portion may be formed on the base component at the same time when the component is fastened and fixed to the base component.

According to the above configuration, the stress concentration portion is formed on the base component at the same time when the component is fastened and fixed to the base component. Therefore, the stress concentration portion can be formed easily and inexpensively. The disassembly breaking force to be applied is concentrated on the stress concentration portion formed on the base component, and the base component can be disassembled at the stress concentration portion, and the plurality of components fastened to the base component can be further reduced in cost. In addition to being able to be disassembled easily and easily, it is also possible to work with automation equipment.

Further, for example, as described in claim 8, the component is located near a fastening position to the base component.
A stress concentration portion having a predetermined shape for concentrating a predetermined destructive breaking force applied to the component at the time of destructive destruction may be formed.

According to the above configuration, a stress concentration portion having a predetermined shape is formed in the vicinity of the fastening position of the component to the base component to concentrate a predetermined destructive breaking force applied to the component at the time of demolition failure. In addition, the component and the base component can be divided, and the component can be further divided in a reusable state, so that the recyclability can be further improved.

Further, for example, as described in claim 9, the base part has a predetermined shape indicating an assembling reference when assembling the part outside the stress concentration part when the base part is reused. May be formed.

According to the above configuration, an assembly reference portion having a predetermined shape is formed outside the stress concentration portion of the base component to indicate an assembly reference when the component is assembled when the base component is reused. Therefore, a plurality of parts fastened to the base part can be easily and easily disassembled, and the work in the automation equipment can be performed, and a new part is fastened to the base part for reuse. In this case, the assemblability can be improved, and the reusability can be further improved.

Further, for example, as set forth in claim 10, a predetermined position of a part where the stress concentration portion is formed in the surrounding base part of the plurality of parts or a base part around the part. A predetermined disassembly mark indicating that the component is the target of disassembly and destruction may be provided at a predetermined position.

According to the above configuration, the component to be dismantled and destroyed is placed at a predetermined position of the component where the stress concentration portion is formed on the surrounding base component of the plurality of components or at a predetermined position of the base component surrounding the component. Since a predetermined disassembly mark indicating that there is a given is provided, at the time of disassembly and destruction, the worker can easily understand the parts to be dismantled and destroyed, so that only the parts for disassembly and breakage can be appropriately dismantled and destroyed. And the efficiency of dismantling and destruction work can be improved.

[0042]

Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. It should be noted that the embodiments described below are preferred embodiments of the present invention, and therefore, various technically preferable limitations are added. However, the scope of the present invention is not limited to the following description. The embodiments are not limited to these embodiments unless otherwise specified.

FIGS. 1 to 5 are views showing a first embodiment of a fastening structure according to the present invention. In this embodiment, when a component is fastened and fixed to a base component, the periphery of the component is fixed. A groove portion is formed as a stress concentration portion in the base component to facilitate the disassembly and division work, and corresponds to claim 1.

FIG. 1 is a perspective view of a fastening structure 1 to which a first embodiment of the fastening structure according to the present invention is applied. In FIG. 1, the fastening structure 1 includes a base such as an electric component and a semiconductor component. 2, a plurality of components 3 such as semiconductor components are bonded and fixed to a base component 2 as a base or the like by an adhesive 4 as shown in FIG.

As shown in FIG. 2, a groove 5 is formed in the base part 2 near the periphery of each part 3 as a stress concentration part, and the groove 5 is formed at a predetermined depth on the back surface of the base part 2. Is formed. The groove 5 can be formed on the back surface of the base component 2 by cutting or the like.

When the component 3 is bonded and fixed to the base component 2, one or both of the base component 2 and the component 3 are destroyed as a disassembling operation. However, as shown in FIG. 3, when the groove 5 is not formed in the base component 2, in order to break the base component 2, for example, a disassembly breaking force as indicated by an arrow in FIG. Since the disassembly breaking force is not uniformly applied to the base component 2 when the base component 2 is applied from below the component 3 of the base component 2, as shown in FIG.
May be broken irregularly, and the broken pieces 2a of the base component 2 may be scattered. If the fragments 2a of the base component 2 scatter during the destruction in this way, the scattered fragments 2a may hit the operator and cause injury.

However, in the fastening structure 1 of the present embodiment, a groove 5 having a predetermined depth is formed near the periphery of the component 3 bonded and fixed to the base component 2 and on the back surface side of the base component 2. As shown by the arrow in FIG. 2, when performing the destruction and destruction, the destruction and destruction force is applied from the upper side of the component 3 and from both sides sandwiching the component 3 and from the lower side outside the groove 5. When applied, the applied disintegration destruction force is concentrated in the groove 5, and as shown in FIG. 5, the base component 2 is easily disintegrated and destructed from the groove 5 with less disintegration destruction force.

Therefore, when the component 3 is bonded and fixed to the base component 2, it is possible to disassemble from the groove portion 5 with less dismantling force while preventing the fine pieces of the base component 2 from scattering. It can be easily performed while preventing workers from being dismantled and destroyed, and when applying the destructive destruction force from the top at the time of destruction, it is easy to use an automatically assembled machine Can be dismantled and demolition equipment can be shared.

FIGS. 6 to 9 are views showing a second embodiment of the fastening structure of the present invention. In this embodiment, a thin portion is provided as a stress concentration portion formed on a base component. This corresponds to claim 2.

FIG. 6 is a front sectional view of a fastening structure 10 to which the second embodiment of the fastening structure of the present invention is applied.
In the fastening structure 10, a plurality of components 12 such as semiconductor components are mounted on an upper surface of a base component 11 as
3 is used for bonding and fixing.

On the back surface side of the base component 11 near the periphery of the component 12, a thin portion 14 is formed as a stress concentration portion.

In this fastening structure 10, the base part 11 is formed by press molding using a resin or the like, and the thin part 14 is attached to the predetermined part 12 at the time of molding the base part 11. It is formed by press molding around the location at the same time.

Therefore, the thin portion 14 which is the stress concentration portion
In comparison with the case where is formed by post-processing, the number of processing steps can be reduced, and the cost can be reduced.

In the fastening structure 10 of the present embodiment,
Since the thin portion 14 is formed at the same time when the base component 11 is formed, when the component 12 is assembled to the base component 11, the base component 11 is supported by a flat jig 15 as shown in FIG. , Parts 12 to base parts 11
Perform assembling work. In this way, when assembling the component 12 to the base component 11, it is possible to prevent the impact from being applied to the thin portion 14, prevent the base component 11 from being broken, and properly attach the component to the base component 11. Assembly can be performed.

Then, the base component 1 of the fastening structure 10
When the parts 1 and 12 are dismantled and destroyed, as shown by arrows in FIG. 6, disassembly and destruction are performed from the upper side of the part 12 and both sides sandwiching the part 12 and the lower side outside the thin part 14. When the force is applied, the applied disintegration destruction force concentrates on the thin portion 14, and as shown in FIG. 8, the base component 11 is easily disassembled and destructed from the thin portion 14 with less disintegration destruction force.

Therefore, when the component 12 is adhered and fixed to the base component 11, the disassembly and breaking force can be reduced.
It is possible to disassemble the thin portion 14 while preventing the fine pieces of the base part 11 from scattering, and to disassemble and destroy
It can be easily performed while preventing injury to the operator, and when applying the destructive destructive force at the time of destruction from above, the disassembly and destruction is easily performed using the upper assembled automatic machine And dismantling equipment can be shared. In addition, the thin portion 14 is made of the resin base component 11.
If they are formed at the same time as the molding, they can be formed at low cost.

When the base component 11 and the component 12 of the fastening structure 10 are dismantled and broken, as shown in FIG. 9, a jig 16 for dismantling may be used. An opening 16a corresponding to the size of the thin portion 14 is formed. In order to perform demolition destruction using this jig 16,
The base component 11 is placed on the jig 16 so that the component 12 is positioned at the opening 16 a of the jig 16, and a disassembly breaking force is applied downward from above the component 12. In this way, the jig 16
The upper corner of the opening 16a concentrates stress on the thin portion 14 of the base component 11 as an upward disintegration breaking force, so that disassembly and destruction can be performed more appropriately and safely. Can be demolished.

Further, the fastening structure 1 of the first embodiment described above.
In the fastening structure 10 according to the second embodiment, the groove 5 and the thin portion 14 are formed as stress concentration portions, and no opening penetrating the base component 2 or the base component 11 is formed. , That is, a unit that requires light-shielding properties.

FIG. 10 and FIG. 11 are views showing a third embodiment of the fastening structure of the present invention. In this embodiment, a punched portion is provided as a stress concentration portion formed on a base component. This corresponds to claim 3.

FIG. 10 is a plan view of the fastening structure 20 to which the third embodiment of the fastening structure of the present invention is applied, and FIG. 11 is a front sectional view of the fastening structure 20. In FIGS. In the structure 20, a plurality of components 22 such as semiconductor components are bonded and fixed to an upper surface of a base component 21 as a base or the like by an adhesive 23 (see FIG. 11).

The base part 21 near the periphery of the part 22 is provided with a plurality of punched parts 24 as stress concentration parts.

In this fastening structure 20, the base part 21 is formed by press molding using a resin or the like.
It is simultaneously formed around a predetermined mounting position of the part 22 by press molding. This punching section 24
As shown in FIG. 10, the base component 21 around the component 22
Are formed at a plurality of locations.

Therefore, the number of processing steps can be reduced and the cost can be reduced as compared with the case where the punched portion 24 as the stress concentration portion is formed by post-processing.

In the fastening structure 20 of the present embodiment,
When the base component 21 and the component 22 are dismantled and destroyed,
As shown by the arrow in FIG. 1, when the demolition destruction force is applied from the upper side of the part 22 and both sides of the part 22 and from the lower side outside the punched part 24, the applied destruction destruction force is increased. Concentrated on the punching section 24, the base component 21 is easily dismantled and broken by the punching section 24 with less dismantling and destruction force.

Therefore, when the component 22 is adhered and fixed to the base component 21, the disassembly and breaking force can be reduced.
It can be dismantled at the punching part 24 while preventing the fine pieces of the base part 21 from scattering, and can be easily disassembled and broken while preventing the worker from being injured. When applying the destructive destruction force at the time of destruction from above, use the upper assembled automatic machine,
Dismantling and destruction can be easily performed, and dismantling equipment can be shared. In addition, if the punched portion 24 is formed simultaneously with the molding of the resin base component 21, it can be formed at low cost.

FIGS. 12 to 14 are views showing a fourth embodiment of the fastening structure according to the present invention, which is applied to an optical base and an optical component of an optical writing system. This corresponds to claim 4.

FIG. 12 is a perspective view of an optical scanning device 30 to which the fastening structure according to the fourth embodiment of the present invention is applied. The light beam is converted into a parallel light beam by a collimator lens 32, a cross-sectional shape of the light beam is formed by a stop 33 on the optical axis, and is incident on a cylindrical lens 34. The cylindrical lens 34 has a refractive power only in the sub-scanning direction, converges the incident light beam on the main scanning surface, and forms an optical deflector 35 having a polygon mirror.
Is formed substantially as a line image on the reflecting surface of the light emitting device. Optical deflector 35
Deflects the incident light beam in the main scanning direction, and
The light is condensed on a photoreceptor 38 via an image forming optical system 36 having a characteristic and a reflection mirror 37 to form an electrostatic latent image on the photoreceptor 38. The optical scanning device 30 transmits a light beam in a predetermined direction on the main scanning line via a lens 39 immediately before the start of laser beam modulation, in order to solve an error in the main scanning direction due to an angle error of the polygon mirror or the like. It is incident on 40. The synchronization detection sensor 40 outputs a synchronization signal synchronized with the incident laser light to a control unit (not shown), and the control unit controls the operation of each unit so as to start an image signal with a predetermined time delay from the synchronization signal.

The optical scanning device 30 includes the laser light source 31
From the reflection lens 37 and the lens 39 and the synchronization detection sensor 4
The optical components 0 are fixedly arranged on the optical base 41.

Then, in the optical scanning device 30, FIG.
As shown in FIG. 3 and FIG. 14, each optical component 42 from the laser light source 31 to the reflection lens 37 and the lens 39 is provided.
Is a fastening structure 44 that is bonded and fixed to the optical base 41 with an adhesive 43. The adhesive 43 has a predetermined width such as an adhesive that can control the bonding timing, for example, an ultraviolet curable adhesive. Then, it is applied on the optical base 41.

That is, in the optical scanning device 30, since the optical system needs to be adjusted when each optical component 42 is assembled to the optical base 41, the optical component 42 is adhered to the optical base 41 with an adhesive 43. Is applied to the optical base 41 with a predetermined width as shown in FIG. 13 and FIG. 14 as well as the final fixing position of the optical component 42. Then, the optical component 42 is placed on the adhesive 43 applied widely.
After the optical adjustment is performed, the adhesive 43 is cured, and the optical component 42 is bonded and fixed to the optical base 41.

In the fastening structure 44, for example, a thin portion 45 is formed as a stress concentration portion on the back surface near the outer peripheral portion of the optical base 41 in a range where the adhesive 43 is applied. When the optical base 41 is formed of resin, the thin portion 45 is formed by press molding when the optical base 41 is formed.

The optical scanning device 30 includes an optical base 41
Since the thin portion 45 is formed around the adhesive 43 at the portion where the optical component 42 is bonded and fixed, when the optical scanning device 30 is disassembled and destroyed, as shown in FIG. Adhesive 4 to which optical component 42 is fixed
When the demolition destruction force is applied from the lower side outside the thin portion 45 on both sides with the 3 interposed therebetween, the applied destruction destruction force is concentrated on the thin portion 45, and the optical base 41 is reduced in destruction destruction force. It is easily disassembled and destroyed from the thin portion 45.

Accordingly, the optical component 4 is
2 can be dismantled by the thin portion 45 with less dismantling and destruction force while preventing the fine pieces of the optical base 41 from being scattered. It can be easily performed while preventing disassembly, and when applying the destructive destruction force at the time of destruction from above, it can be easily dismantled and destructed by using the upper assembled automatic machine, Demolition equipment can be shared. In addition, the thin portion 45 is made of a resin optical base 41.
If they are formed at the same time as the molding, they can be formed at low cost.

Further, since the thin portion 45 is not formed in the portion to which the adhesive 43 is applied and the thickness is constant, the optical component 42 can be bonded and fixed with high accuracy, and the precision of the optical scanning device 30 can be improved. Can be improved.

When the optical scanning device 30 is dismantled and destroyed, as shown in FIG.
The disassembly destruction force in the direction parallel to 1 may be applied. In this case as well, the disassembly destruction force is concentrated on the thin portion 45, and the disassembly and destruction force can be easily reduced with less disassembly destruction force.

FIGS. 15 and 16 are views showing a fifth embodiment of the fastening structure of the present invention. In this embodiment, stress concentration occurs around an optical component fixed to an optical base by screws. A part is provided, and corresponds to claim 5.

FIG. 15 is a front sectional view of a fastening structure 50 to which the fifth embodiment of the fastening structure of the present invention is applied. In FIG. Are fixed by screws 53.

The optical base 51 near the periphery of the optical component 52
A thin portion 54 is formed as a stress concentration portion on the surface side of the.

In this fastening structure 50, the optical base 51 is formed by press molding using a resin or the like, and the thin portion 54 is formed when the optical base 51 is molded. It is simultaneously formed around the mounting position by press molding.

Therefore, the thin portion 54 which is a stress concentration portion
In comparison with the case where is formed by post-processing, the number of processing steps can be reduced, and the cost can be reduced.

In the fastening structure 50 of the present embodiment,
When disassembling and breaking the optical base 51 and the optical component 52,
As shown by the arrow in FIG. 15, when the disassembly breaking force is applied from the upper side of the optical component 52 and both sides sandwiching the optical component 52 and the lower side outside the thin portion 54, the disassembly destruction applied is given. The force concentrates on the thin portion 54, and as shown in FIG. 16, the optical base 51 is easily dismantled and destroyed by the thin portion 54 with less dismantling force.

Therefore, the optical component 5 is
When the screw 2 is fixed with a screw, it is possible to disassemble the thin portion 54 with less disintegration destruction force and to prevent fine fragments of the optical base 51 from being scattered. It can be easily performed while preventing injury to the user, and when applying the destructive destruction force at the time of destruction from above, use the automatic machine of the upper assembly,
Dismantling and destruction can be easily performed, and dismantling equipment can be shared. In addition, if the thin portion 54 is formed simultaneously with the molding of the optical base 51 made of resin, it can be formed at low cost.

As described above, when the destructive destruction force is applied from above the optical component 52 and from below the optical base 51, the automatic assembly of the optical component 52 is performed by the upper assembly machine.
Can easily be dismantled and destroyed.

When the component is fixed to the base component with a screw, the fastening structure is, as shown in FIG. 17, a ring-shaped stress concentration portion on the base component around the screw 55, for example, by punching. A plurality of portions 56 may be formed.

In this case, when dismantling and destroying,
As shown by an arrow in FIG. 18, when a torque is applied to the screw 55 in the fastening direction with a tightening force exceeding that at the time of fastening the screw 55,
As shown in (1), stress concentration occurs in the punched portion 56, and the screw 55 of the base component can be broken by torsion breaking.

[0086] In this way, since a large impact is not applied to the surrounding parts, the other reusable parts can be reused without damaging them.

FIGS. 19 to 22 are views showing a sixth embodiment of the fastening structure of the present invention. In this embodiment, a stress concentration portion is provided around an optical component snap-fitted to an optical base. This corresponds to claim 6.

FIG. 19 is a front sectional view of a main part of a fastening structure 60 to which a sixth embodiment of the fastening structure according to the present invention is applied. In FIG.
An optical component 62 is snap-fitted and fixed by a fastening member 63 to the upper surface of the optical component 62.

The fastening member 63 is formed by sheet metal processing or the like, has a predetermined elasticity, and has a claw 64 as shown in FIGS. Fastening member (fastening member) 63
One end of the optical component 62 is locked to the end of the optical component 62, and the claw 64 at the other end bites into a claw locking portion 65 formed on the optical base 61, thereby making the optical component 62 robust. And easily and easily.

The optical base 61 near the periphery of the optical component 62
A thin portion 66 is formed as a stress concentration portion on the surface side of the substrate.

In this fastening structure 60, the optical base 61 is formed by press molding using a resin or the like, and the thin portion 66 is formed when the optical base 61 is molded. It is simultaneously formed around the mounting position by press molding.

Therefore, the thin portion 66 which is the stress concentration portion
In comparison with the case where is formed by post-processing, the number of processing steps can be reduced, and the cost can be reduced.

In the fastening structure 60 of the present embodiment,
When disassembling and breaking the optical base 61 and the optical component 62,
As shown by the arrow in FIG. 19, when the demolition destruction force is applied from above the claw locking portion 65 and both sides sandwiching the optical component 62 and below the thin portion 66, the applied disassembly is performed. The destructive force concentrates on the thin portion 66, and as shown in FIG.
The optical base 61 has a thin wall 66 with less dismantling force.
It is easily dismantled and destroyed in parts.

Therefore, the optical component 6 is
When the snap fitting 2 is fixed, the thin wall of the optical base 61 can be prevented from being scattered with a small destruction destruction force without performing a troublesome disassembly operation of disassembling the snap fit, and a thin wall. It can be dismantled at the part 66, and can be easily performed while preventing the dismantling and destruction of the operator from being injured. Using an automatic machine, dismantling and destruction can be easily performed, and dismantling equipment can be shared. Further, when the thin portion 66 is formed simultaneously with the molding of the optical base 61 made of resin, it can be formed at low cost.

FIGS. 23 to 25 are views showing a seventh embodiment of the fastening structure according to the present invention. In this embodiment, a stress concentration portion is simultaneously formed around a component when the component is assembled to a base component. Which corresponds to claim 7.

FIG. 23 is a front view of a main part of a fastening structure 70 to which a seventh embodiment of the fastening structure of the present invention is applied. In FIG.
When the mold of the base component 71 is completed, no stress concentration portion is formed, and after applying the adhesive 72 to the upper surface of the base component 71, the component 73 is placed and the adhesive 7 is pressed by the pressing jig 74.
By pressing the base component 71 and the component 73 in the direction indicated by the arrow in FIG.
To fix it to the base component 71.

At this time, the projection 7 is provided below the base component 71 at a position corresponding to the vicinity of the periphery of the component 73 to be bonded and fixed.
5 is disposed, a base component 71 is placed on the stress concentration portion forming jig 76, and after applying an adhesive 72, a component 73 is placed. By pressing in the direction of the stress concentration portion forming jig 76 with the pressure jig 74, a cut portion 77 (see FIG. 25) as a stress concentration portion is formed in the base component 71.

That is, on the stress concentration portion forming jig 76,
Base component 7 on which component 73 is placed by applying adhesive 72
As shown in FIG. 24, the component 73 is pressed from above the component 73 toward the stress concentration portion forming jig 76 by the pressing jig 74, and the component 73 is pressed against the base component 71 with the adhesive 72 interposed therebetween. And is fixed by bonding.
1 is pressed by the stress concentration portion forming jig 76.

Thereafter, when the pressing jig 74 is moved upward as shown in FIG. 25, the notch portion 7 as a stress concentration portion is formed in a peripheral portion of the component 73 on the back surface of the base component 71.
7 is formed.

In the fastening structure 70 of the present embodiment,
When the stress concentration portion is not formed when the mold of the base component 71 is completed, the cut portion 77 as the stress concentration portion is formed at a low cost and easily at the same time as the component 73 is adhered and fixed to the base component 71. can do.

Also in this case, when the base component 71 and the component 73 are dismantled and destroyed, for example, the disassembly and destruction is performed from above the component 73 and on both sides of the component 73 and below the notch 77 and below. When the force is applied, the disassembly breaking force applied is concentrated on the cut portion 77, and the base component 71 is easily dismantled and destroyed at the cut portion 77 with a smaller disassembly breaking force.

FIGS. 26 and 27 are views showing an eighth embodiment of the fastening structure according to the present invention. In this embodiment, a stress concentration portion is formed also on a part to improve the reusability of the part. Is performed to further decompose and disassemble, and corresponds to claim 8.

FIG. 26 is a front view of a fastening structure 80 to which the eighth embodiment of the fastening structure of the present invention is applied.
In the fastening structure 80, a component 82 is bonded and fixed to an upper surface of a base component 81 with an adhesive 83.

On the back surface of the base component 81 near the periphery of the component 82, a thin portion 84 is formed as a stress concentration portion. A notch 85 as a part is formed.

In this fastening structure 80, the base component 81 is formed by press molding using a resin or the like, and the thin portion 84 is attached to the predetermined component 82 at the time of molding the base component 81. It is formed by press molding around the location at the same time.

Therefore, the thin portion 84 which is a stress concentration portion
In comparison with the case where is formed by post-processing, the number of processing steps can be reduced, and the cost can be reduced.

In the fastening structure 80 of the present embodiment,
When disassembling and breaking the base component 81 and the component 82, the component 82 is moved to the base component 8 with the base component 81 held down.
A demolition destruction force is applied in a direction substantially parallel to the surface of No. 1. This disassembly breaking force is concentrated on the notch portion 85 of the component 82, and the component 82 is easily disassembled and broken from the notch portion 85 as shown in FIG.

Next, when the disassembly destruction force is applied from above the remaining portion disassembled and broken from the notch portion 85 and from both sides sandwiching the part 85 and below the thin portion 84, the applied force is given. The disassembly destruction power concentrated on the thin portion 84,
The base part 81 has a thin portion 84 with less dismantling force.
Easily dismantled.

Therefore, when the component 82 is adhered and fixed to the base component 81, the disassembly and breaking force can be reduced.
The component 82 can be dismantled and broken at the cutout portion 85 while preventing the fine pieces of the base component 81 from being scattered, and the base component 81 can be dismantled at the thin wall portion 84, thereby dismantling and breaking. Can be easily performed while preventing injuries to workers,
When the demolition destruction force at the time of destruction is applied from above, the demolition and destruction can be easily performed using an automatic machine assembled above, and the demolition equipment can be shared.

Further, the component 82 and the base component 81 can be separated at the thin portion 84, and the component 82 can be separated at the notch portion 85.
The base part 81 outside the thin part 84 separated by the above and the upper part of the part 82 separated by the notch 85 are fixed to the base part inside the thin part 84 by the non-reusable adhesive 83. It can be separated from the lower part of the part 82 separated by the notch part 81 from the part 81 and reused or reused as a part as it is.

In the above-described embodiment, the case where the base component 81 and the component 82 are bonded and fixed with the adhesive 83 has been described. However, the present invention is not limited to the bonding and fixing. The same applies to the case of fastening.

FIGS. 28 to 30 are views showing a ninth embodiment of the fastening structure of the present invention. This embodiment forms a reference part for assembling parts when reused as a base part. do it,
The present invention performs disassembly and disassembly in which the reusability of parts is further improved, and corresponds to claim 9.

FIG. 28 is a front view of a fastening structure 90 to which the ninth embodiment of the fastening structure of the present invention is applied.
In the fastening structure 90, a component 92 is bonded and fixed to an upper surface of a base component 91 with an adhesive 93.

A thin portion 94 is formed as a stress concentration portion on the back surface of the base component 91 near the periphery of the component 92, and around the surface of the base component 91 outside the thin portion 94, A reproduction product fixing projection (assembly reference portion) 95 is formed.

In this fastening structure 90, the base component 91 is formed by press molding using a resin or the like, and the thin portion 94 and the reproduction product fixing projection 95 are determined in advance when the base component 91 is molded. It is simultaneously formed around the mounting position of the component 92 by press molding.

Therefore, the thin portion 94 which is the stress concentration portion
In addition, as compared with the case where the reproduction product fixing projections 95 are formed by post-processing, the number of processing steps can be reduced, and the cost can be reduced.

In the fastening structure 90 of the present embodiment,
When the base part 91 and the part 92 are dismantled and destroyed,
As shown in FIG. 9, when the demolition destruction force is applied from the upper side of the part 92 and both sides of the part 92 and the lower side outside the thin part 94, the applied destruction destruction force is applied to the thin part 94. As shown in FIG. 29, the part 92 is broken at the thin part 94 around the thin part 94 of the base part 91, and can be removed from the thin part 94 of the base part 91. It is easily dismantled and broken at the thin portion 94 by force.

Therefore, when the component 92 is bonded and fixed to the base component 91, the disassembly and destruction force can be reduced.
The component 92 can be extracted at the thin portion 94 of the base component 91 while preventing the fine pieces of the base component 91 from scattering, and the base component 91 can be removed from the thin portion 9.
It can be dismantled in four parts, and can be easily dismantled and broken while preventing injury to the operator. When the dismantling force at the time of breaking is applied from above, the upper assembly is required. Using an automatic machine, dismantling and destruction can be easily performed, and dismantling equipment can be shared.

Then, as shown in FIG. 30, another part or a recycled part 96 is bonded and fixed to the part where the part 92 of the base part 91 has been removed with the adhesive 97 using the protrusion 95 for fixing the recycled part as a guide. I do.

Therefore, after the adhesively fixed portion of the component 92 is disassembled and separated from the thin portion 94 of the base component 91 to which the component 92 has been adhesively fixed, the reproduction product fixing projection 95
The new component 96 can be bonded and fixed by using the guide as a guide, the recyclability can be improved, and whether the component is mounted on the base component 91 can be determined by determining whether the component is a recycled product or not. It can be easily determined from whether or not it is 95 parts.

In the present embodiment, a thin portion may be formed as a stress concentration portion on the outer peripheral portion of the reproduction product fixing projection 95. In this case, stress concentration occurs in the thin portion. In addition, the part 96 part adhered and fixed to the base part 91 and the base part 91 can be easily disassembled and broken by using the reproduction product fixing projection 95 as a guide.

FIG. 31 is a view showing a tenth embodiment of the fastening structure according to the present invention. In the present embodiment, a disassembly mark indicating a part to be disassembled and broken on a base part is attached. The present invention improves the workability of work and corresponds to claim 10.

FIG. 31 is a plan view of a fastening structure 100 to which the tenth embodiment of the fastening structure of the present invention is applied. In FIG. Fixed, screw fixed or snap fit fastened.

The base component 101 near the periphery of the component 102
A thin portion 103 is formed as a stress concentration portion on the back surface side of the base component 1 outside the thin portion 103.
A disassembly mark 104, for example, an X mark, which is a part to be disassembled and destroyed, is formed around the surface side of the base part 101 by the unevenness of the base part 101.

In the fastening structure 100, the base component 101 is formed by press molding using a resin or the like, and the thin portion 103 and the disassembly mark 104 are predetermined when the base component 101 is molded. It is simultaneously formed around the mounting position of the component 102 by press molding.

Therefore, the thin portion 10 which is the stress concentration portion
The number of processing steps can be reduced and the cost can be reduced as compared with the case where the third and the disassembly marks 104 are formed by post-processing.

In the fastening structure 100 of the present embodiment, when a plurality of components are fastened to the base component 101 by adhesive fixing, screw fixing, snap-fit fastening, or the like, the components that do not disassemble and break from the base component 101 are disassembled. The parts 102 to be destroyed can be distinguished by the dismantling marks 104, and only the parts 102 to be dismantled can be appropriately dismantled and destroyed, so that the workability of the dismantling and destruction can be improved.

That is, when a plurality of parts are fixed or fastened to the base part 101, it is not necessary to disassemble and break all parts from the base part 101. In the case of snap-fit fastening or screw fixing hidden in the back of the part, the part 102 is disassembled and destroyed, and a part with a snap-fit that is easily removed or a screw that is easily removed can be easily removed. Therefore, disassembly work is easier and the reusability is improved by removing the snap fit or the screw and removing the component.

In the fastening structure 100 of the present embodiment, since the parts 102 to be dismantled and broken are marked with the disassembly marks 104 on the surrounding base parts 101, a plurality of parts 102 to be dismantled and broken are provided. It can be easily discriminated from the parts and can be dismantled and destroyed.

Although the invention made by the inventor has been specifically described based on the preferred embodiments, the present invention is not limited to the above-described embodiment, and various modifications may be made without departing from the gist of the invention. It goes without saying that it is possible.

[0131]

According to the fastening structure of the first aspect of the present invention, the disassembly breaking force applied to the base component at the time of disassembly breaking is concentrated at a predetermined position of the base component around the component fastened to the base component. Since the stress concentration portion having the predetermined shape is formed, the disassembly breaking force given at the time of dismantling is concentrated on the stress concentration portion formed on the base component, and the base component can be disassembled at the stress concentration portion. In addition, a plurality of components fastened to the base component can be easily and easily disassembled, and work in an automated facility can be performed.

According to the fastening structure of the second aspect of the invention,
Since the base component is formed of a predetermined resin, and the stress concentration portion is processed and formed as a thin portion having a smaller thickness than other portions of the base component, the base component and the stress concentration portion are easily formed. In addition to the above, it is possible to concentrate the demolition destruction force applied at the time of demolition destruction to the stress concentration part formed on the base component, disassemble the base component at the stress concentration part, and Can be disassembled inexpensively, easily and easily, and can also be operated by automated equipment.

According to the third aspect of the present invention,
The base component is formed of a predetermined resin, and the stress concentration portion is processed and formed as a punched portion penetrating the base component. Therefore, the base component and the stress concentration portion can be easily formed and disassembled. Focusing the disassembly destruction force given at the time of destruction on the stress concentration part formed on the base part,
The base part can be disassembled at the stress concentration part, and a plurality of parts fastened to the base part can be dismantled easily, easily, and inexpensively, and can also be operated by automated equipment. Can be.

According to the fastening structure of the invention described in claim 4,
The base component is an optical base, and the component is an optical component, which is fastened to the optical base by adhesive fixing, so that optical components such as lenses can be fixed with high accuracy and easily disassembled and broken. can do.

According to the fastening structure of the invention described in claim 5,
Since the base component is an optical base and the component is an optical component, which is fastened to the optical base by screw fixing, the optical component such as a lens can be fixed with high accuracy and easily disassembled and broken. can do.

According to the fastening structure of the invention described in claim 6,
The base component is an optical base, and a predetermined claw locking portion is formed at a predetermined position around the component, and the component is
An optical component that has predetermined elasticity and is fastened to the base portion by a fastening member having a claw that meshes with a claw locking portion of the base component, so that an optical component such as a lens is more accurately fixed. It can be easily dismantled and destroyed.

According to the fastening structure of the seventh aspect of the present invention,
Since the stress concentration portion is formed on the base component at the same time when the component is fastened and fixed to the base component, the stress concentration portion can be formed easily and inexpensively, and the disassembly destruction force applied at the time of disassembly destruction is applied to the base component. The base component can be disassembled at the stress concentration portion formed by concentrating on the stress concentration portion formed on the base member, and the plurality of components fastened to the base component can be disassembled at a lower cost and simply and easily. In addition to this, it is also possible to work with an automated facility.

According to the fastening structure of the invention described in claim 8,
In the vicinity of the fastening position of the component to the base component, a stress concentration portion having a predetermined shape for concentrating a predetermined disassembly destruction force applied to the component at the time of disassembly and destruction is formed. In addition, the parts can be divided in a more reusable state, and the recyclability can be further improved.

According to the fastening structure of the ninth aspect,
Outside the stress concentration portion of the base component, an assembly reference portion having a predetermined shape indicating an assembly reference when assembling the component when reusing the base component is formed. Parts can be easily and easily disassembled, and work in automated equipment can be performed. In addition, it is possible to improve the assemblability when reusing and reusing new parts to the base parts. And the reusability can be further improved.

According to the fastening structure of the tenth aspect of the present invention, at a predetermined position of a component in which a stress concentration portion is formed on a surrounding base component among a plurality of components, or at a predetermined position of a base component surrounding the component. Since a predetermined disassembly mark indicating that the component is a target for dismantling and destruction is given, when dismantling and destructing, a worker can easily recognize the component for disassembly and destruction, and The dismantling and destruction can be appropriately performed, and the efficiency of the dismantling and destruction work can be improved.

[Brief description of the drawings]

FIG. 1 is a perspective view of a base component and components in a fastening structure to which a first embodiment of the fastening structure of the present invention is applied.

FIG. 2 is a front sectional view of the base component and the component of FIG. 1;

FIG. 3 is a front sectional view when a stress concentration portion is not formed on the base component of FIG. 1;

FIG. 4 is a front view of a case where a base component having no stress concentration portion shown in FIG.

5 is a front sectional view showing a state where the base component and the component of FIG. 2 are disassembled and destroyed from a groove.

FIG. 6 is a front cross-sectional view of a base component and components in a fastening structure to which a second embodiment of the fastening structure of the present invention is applied.

FIG. 7 is a front sectional view showing a state where the base component of FIG. 6 is placed on a jig and the components are assembled.

FIG. 8 is a front sectional view of the base part of FIG. 6 and a state in which the part is disassembled and broken from a thin portion.

FIG. 9 is a front sectional view of a state where the base component and the component of FIG. 6 are dismantled and broken using a jig for dismantling and breaking;

FIG. 10 is a top view of a base component and components in a fastening structure to which a third embodiment of the fastening structure of the present invention is applied.

FIG. 11 is a front sectional view of the base component and the component of FIG. 10;

FIG. 12 is a perspective view of an optical scanning device to which a fastening structure according to a fourth embodiment of the present invention is applied.

13 is a front cross-sectional view showing an example of a fastening state between the optical base and the optical component by the fastening structure of the optical scanning device in FIG.

FIG. 14 is a front sectional view of another example of a fastening state of the optical base and the optical component by the fastening structure of the optical scanning device in FIG. 12;

FIG. 15 is a front sectional view of an optical base and an optical component in a fastening structure to which a fifth embodiment of the fastening structure according to the present invention is applied.

FIG. 16 is a front sectional view showing a state in which the optical base and the optical component of FIG. 15 are disassembled and destroyed from a thin portion.

FIG. 17 is a top view of another example of the optical base and the optical component according to the fastening structure of FIG. 15;

18 is a top view of the optical base and the optical component of FIG. 17 in a state where the optical base and the optical component are disassembled and destroyed at a punched portion.

FIG. 19 is a front sectional view of an optical base and an optical component in a fastening structure to which a sixth embodiment of the fastening structure according to the invention is applied.

FIG. 20 is an enlarged top view of a fastening portion between the optical base and the optical component.

FIG. 21 is an enlarged front sectional view of a fastening portion between the optical base and the optical component.

FIG. 22 is a front sectional view of the optical base and the optical component of FIG. 19 in a state where the optical base and the optical component are disassembled and broken at a thin portion.

FIG. 23 is a front sectional view of a base component, a component, a pressing jig, and a stress concentration portion forming jig in a fastening structure to which a seventh embodiment of the fastening structure of the present invention is applied.

24 is a front sectional view showing a state in which the base component and the component shown in FIG. 23 are sandwiched between a pressing jig and a stress concentration portion forming jig and pressed to form a cut portion in the base component;

FIG. 25 is a front sectional view of a state where a cut portion is formed in the base component of FIG. 23;

FIG. 26 is a front cross-sectional view of a base component and components in a fastening structure to which an eighth embodiment of the fastening structure of the present invention is applied.

FIG. 27 is a front sectional view of the base part of FIG. 26 and a state in which the part is disassembled and destroyed.

FIG. 28 is a front sectional view of a base component and components in a fastening structure to which a ninth embodiment of the fastening structure of the present invention has been applied.

FIG. 29 is a front sectional view of the base component of FIG. 28 and a state where the component is disassembled and broken;

30 is a front sectional view of a state where a new component is assembled to the disassembled and broken base component of FIG. 29;

FIG. 31 is a top view of a base component and components in a fastening structure to which a tenth embodiment of the fastening structure according to the invention is applied.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 fastening structure 2 base component 3 component 4 adhesive 5 groove 10 fastening structure 11 base component 12 component 13 adhesive 14 thin portion 15 jig 16 jig 16a mouth 20 fastening structure 21 base component 22 component 23 adhesive 24 punching process REFERENCE SIGNS LIST 30 optical scanning device 31 laser light source 32 collimator lens 33 aperture 34 cylindrical lens 35 optical deflector 36 imaging optical system 37 reflection mirror 38 photoconductor 39 lens 40 synchronization detection sensor 41 optical base 42 optical component 41 optical base 43 adhesive 44 fastening Structure 45 Thin portion 50 Fastening structure 51 Optical base 52 Optical component 53 Screw 54 Thin portion 55 Screw 56 Drilling portion 60 Fastening structure 61 Optical base 62 Optical component 63 Fastening member 64 Claw locking portion 65 Claw 66 Thin portion 70 Fastening structure 71 Base part 72 contact Adhesive 73 Parts 74 Pressure jig 75 Convex part 76 Stress concentration part forming jig 77 Cut part 80 Fastening structure 81 Base part 82 Part 83 Adhesive 84 Thin part 85 Notch part 90 Fastening structure 91 Base part 92 Parts 93 Adhesion Agent 94 Thin portion 95 Reproduction product fixing projection 96 Component 100 Fastening structure 101 Base component 102 Component 103 Thin portion 104 Disassembly mark

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Koichi Kawano 1-3-6 Nakamagome, Ota-ku, Tokyo Ricoh Co., Ltd.

Claims (10)

[Claims] 1. A fastening structure for fastening a plurality of parts to a base part by a predetermined fastening method, wherein the base part is fixed to a predetermined position of the base part around the part to be fastened to the base part when disassembled and broken. A fastening structure, wherein a stress concentration portion having a predetermined shape for concentrating a predetermined destructive breaking force applied to a part is formed. 2. The base component is formed of a predetermined resin, and the stress concentration portion is processed and formed as a thin portion thinner than other portions of the base component. The fastening structure according to claim 1. 3. The fastening according to claim 1, wherein the base component is formed of a predetermined resin, and the stress concentration portion is processed and formed as a punched portion penetrating the base component. Construction. 4. The optical device according to claim 1, wherein the base component is an optical base, and the component is an optical component, and is fastened to the optical base by adhesive fixing. 3. The fastening structure according to claim 1. 5. The optical device according to claim 1, wherein the base component is an optical base, and the component is an optical component, and is fastened to the optical base by screw fixing. 3. The fastening structure according to claim 1. 6. The base component is an optical base,
A predetermined claw locking portion is formed at a predetermined position around the component, and the component is an optical component, and has a predetermined elasticity and a claw that meshes with the claw locking portion of the base component. The fastening structure according to claim 1, wherein the fastening structure is fastened to the base portion by a fastening member. 7. The fastening according to claim 1, wherein the stress concentration portion is formed on the base component at the same time when the component is fastened and fixed to the base component. Construction. 8. The component has a stress concentration portion having a predetermined shape for concentrating a predetermined destructive breaking force applied to the component when the component is dismantled and broken, near a fastening position to the base component. The fastening structure according to any one of claims 1 to 7, wherein: 9. The base component is provided with an assembly reference portion having a predetermined shape indicating an assembly standard when assembling the component when reusing the base component, outside the stress concentration portion. The fastening structure according to any one of claims 1 to 8, wherein: 10. A part to be dismantled and destroyed at a predetermined position of a part where the stress concentration portion is formed on the surrounding base part of the plurality of parts or at a predetermined position of the base part surrounding the part. 10. A predetermined disassembly mark indicating that there is is given.
The fastening structure according to any one of the above.