JP4022334B2 - Mating structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a fitting structure that is detachable with a single touch, and more particularly, to a fitting structure that is suitable for a portable comb, in which a fitting portion does not come off due to external force when used in a fitted state. .
[0002]
[Prior art]
Conventionally, with regard to long members, in consideration of carrying convenience, the long members are divided into short members of a predetermined length, and these are joined by a detachable fitting structure to form a long member. Has been done.
For this reason, for example, in a structural material for which a predetermined strength is required, the fitting portion is made into a screw structure, or a concave and convex portion that fits closely is formed and a locking member is provided as necessary. In this case, it is difficult to say that the desorption operation is easy.
[0003]
Further, for example, in a portable comb or the like, the base of the comb body member provided with comb teeth and the end of the gripping member are made to have a fitting structure. Since a large bonding strength is not required, a pair of protrusions having flexibility is formed at the base of the comb body member.
That is, the comb body member 1 shown in FIG. 6 is provided with a large number of comb teeth 2a to 2n and a pair of projections 4a and 4b at the end of the base 3, and the projection 4a. Tongues 5a and 5b are formed at the tips of 4b. On the other hand, the gripping member 6 shown in FIG. 7 is formed with a hole portion 7 having a width B narrower than the maximum width A of the tongue-like portions 5a and 5b of the main body member 1 at its end portion. Slit-like openings 8a and 8b are formed on both sides of the end of the gripping member 6 so as to communicate with the bottom.
[0004]
When the comb body member 1 and the gripping member 6 are carried, the comb body member 1 and the gripping member 6 are carried in a divided state, for example, stored in a pocket of clothes, and when used as a comb, the end of the base 3 of the comb body member 1 is used. And the end of the gripping member 6 are used by fitting. At the time of this fitting, the protrusions 4a and 4b are inserted into the hole 7 of the gripping member 6 while being guided by the tapered tongues 5a and 5b of the comb body member 1 and bent in the central axis direction. When the tongues 5a and 5b of the body member 1 reach the positions of the openings 8a and 8b, the tongues 5a and 5b enter the openings 8a and 8b by restoring force, whereby the comb body member 1 is locked to the gripping member 6, The comb is completed.
[0005]
Thus, the fitting operation between the comb body member 1 and the gripping member 6 can be easily performed with one touch by simply pushing the protrusions 4 a and 4 b of the comb body member 1 into the hole 7 of the gripping member 6. . A comb can be used by gripping the gripping member 6 having a sufficient length.
When the comb body member 1 and the gripping member 6 are separated to carry the comb, it is easily performed by pushing the tongues 5a and 5b of the comb body member 1 into the openings 8a and 8b. Can do.
[0006]
[Problems to be solved by the invention]
However, when this comb is used, as shown in FIG. 8, shear stress in the directions of arrows X1 and X2 is generated in the fitting portion. For example, the hair becomes entangled and the stress becomes excessive or used. Even if not, you may inadvertently apply force in this direction.
[0007]
In such a case, as shown in FIG. 8, the protrusions 4a and 4b are greatly bent, and accordingly, the tongue-like parts 5a and 5b are detached from the openings 8a and 8b, and the entire protrusions 4a and 4b are left as they are. There is a problem that it slips through the hole 7 and cannot maintain a strong fitting state.
The present invention is easy to carry by using a short member divided into an appropriate length, and can be easily attached and detached so that a short member can be fitted with a single touch during use. An object of the present invention is to provide a strong fitting structure in which a fitting portion is not easily detached by an external force when fitted and used.
[0008]
[Means for Solving the Problems]
The fitting structure according to the present invention is a detachable fitting structure for joining a first short member and a second short member to form a comb, and 1 is attached to the end of the first short member. A protrusion made of a set of flexible materials, the protrusion being formed with a linear portion and a wide portion that expands in a substantially arc shape outward at least with respect to the central axis at the top of the linear portion; The joint portion of the wide portion and the top of the straight portion is formed so as to protrude in a direction slightly folded from the vertical direction with respect to the straight portion, and the anti-joint portions do not contact each other when fitted. The pair of protrusions are formed so that the distance between the straight portions slightly increases toward the top of the straight portion, and a gap is formed between the pair of protrusions. And a protrusion is further formed, and the protrusion is configured not to contact the protrusion during fitting. A hole having a narrower width than the distance between the outsides of the tops of the straight portions of the pair of protrusions, and a small width from the direction perpendicular to the hole. Two openings that are expanded and open to the outside are formed and inserted into the hole while bending the protrusion, and then the wide portion of the protrusion is restored by the restoring force. The portion formed by projecting in the slightly folded direction of the protruding portion in a state in which the bending remains is pressed so as to press the opening, and thereby the first short member And a second short member.
[0009]
Here, as the flexible material, for example, various soft resins such as a soft resin such as soft polyethylene or a soft resin added to a hard resin such as polyvinyl chloride are used. However, the present invention is not limited to this, and a hard material can be used by adjusting the thickness of the straight portion of the protrusion according to the degree of flexibility of the material. Any material can be selected and used, including metals. In addition, the configuration in which the protruding portion does not come into contact with the protruding portion at the time of fitting may be provided, for example, so that the length dimension of the protruding portion does not exceed the length dimension of the linear portion of the protruding portion, If the length of the protrusion exceeds the length of the straight portion of the protrusion, either or both of the width of the protrusion and the width of the wide portion of the protrusion should be narrowly regulated. There may be various configurations.
[0010]
In this way, the short member divided into an appropriate length is excellent in carrying convenience, and in use, in a fitting structure that can be easily attached and detached, the short member can be fitted with one touch to form a comb . A direction in which the protruding portion is slightly folded back by inserting the protruding portion into the hole while bending it and allowing the wide portion of the protruding portion to enter the opening of the hole portion by restoring force. Since the portion formed so as to protrude to the bottom is locked so as to press the opening, the short members are securely locked to each other and are formed so as to include one set of protrusions with respect to the fitting portion. Even when an abnormal shearing external force is applied in the direction of the plane, it is possible to obtain a strong fitting structure in which the short member is not easily separated and detached. In addition, since the anti-joining portions of the protrusions are tapered so that they do not contact each other during fitting, there is no possibility that the anti-joining portions will interfere with each other and interfere with the fitting. Even if an abnormal external force is applied in a direction perpendicular to the plane formed to include a pair of protrusions with respect to the fitting portion, the protruding portion serves as a reinforcing member, and a strong fitting is achieved. A composite structure can be obtained. At this time, since the projecting portion is tapered so as not to come into contact with the projecting portion, the projecting portion and the projecting portion interfere with each other and there is no possibility of hindering the fitting.
[0011]
In the fitting structure according to the present invention, a step groove having a width substantially the same as the width of the protruding portion is formed in the hole portion, and the protruding portion is fitted into the step groove at the time of fitting. And
[0013]
The fitting structure according to the present invention is characterized in that the first short member is a comb body member having a comb tooth portion, and the second short member is a gripping member.
[0014]
Thereby, a suitable fitting structure can be obtained in the portable comb.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
A preferred embodiment of a fitting structure according to the present invention will be described below with reference to the drawings. First, in the reference example shown in FIG. 1, the long member 10 is divided into a first short member 12 and a second short member 14 in a state before being fitted.
[0016]
A pair of protrusions 16a and 16b are provided at the end of the first short member 12, and the protrusions 16a and 16b are arranged on the tops of the straight portions 18a and 18b and the straight portions 18a and 18b. The wide portions 20a and 20b are formed in the shape of an arc having a length of ¼ of the circumference. Accordingly, the joint portions of the wide portions 20a and 20b with the straight portions 18a and 18b protrude in the direction slightly folded back from the vertical direction, and the anti-joint portion (tip) is tapered. Here, the straight portions 18a and 18b are formed so that the distance between the straight portions 18a and 18b slightly increases toward the top.
[0017]
The end portion of the second short member 14 has a hole portion 22 having a width D narrower than the distance C between the outsides of the top portions of the straight portions 18a and 18b of the protrusion portions 16a and 16b, and communicates with the hole portion 22 to the central axis. On the other hand, two openings 24a and 24b are formed which are slightly expanded from the vertical direction and open outward with a length corresponding to the wide portions 20a and 20b.
Here, the first and second short members 12 and 14 are formed integrally using polypropylene as a material. The first and second short members 12 and 14 may be configured by using an appropriate material for each part and joining them.
[0018]
When the first and second short members 12 and 14 are joined to form the long member 10, the protrusions 16 a and 16 b of the first short member 12 are inserted into the holes 22 of the second short member 14. As a result, the protrusions 16a and 16b are guided into the tapered wide portions 20a and 20b while being bent into the hole 22, and the protrusions 26 of the protrusions 16a and 16b are close to the bottom wall of the hole 22. When reaching, the arc portion of the protrusion 26 enters the openings 24a and 24b by the restoring force. At this time, since the width of the hole 22 is narrower than the distance C between the outsides of the tops of the straight portions 18a and 18b of the protrusions 16a and 16b, the protrusions 16a and 16b are left in a state of being bent, Accordingly, the protruding portions 16a and 16b are formed so as to protrude in the slightly folded direction so that the openings 24a and 24b are pressed, and the first and second short members 12 and 14 are fitted. It is firmly locked in the state (see α part in FIG. 2). Note that the protrusions 16a and 16b are sufficiently spaced apart from each other, and the anti-joint portions of the protrusions 16a and 16b are tapered so that they do not contact each other when fitted. For this reason, there is no risk of interference during fitting.
[0019]
As shown in FIG. 2 (shown in FIG. 1 is a state in which the member is broken at the center line of the width of the member in the direction perpendicular to the paper surface), the ends of the first and second short members 12 and 14 are fitted. In the long member 10, when an abnormal force is applied to the long member 10 for some reason and the elastic force in the directions indicated by the arrows Y 1 and Y 2 in FIG. The front portion of the projection 16a is displaced downward in FIG. 2 and the front portion of the projection 16b is displaced upward in FIG. 2 with the portion as a fulcrum, but the projections 16a and 16b are openings 24a in the α portion in FIG. Since the protrusions 16a and 16b are securely locked to the opening 24b, the wide portions 20a and 20b do not come out of the openings 24a and 24b, and the long member 10 is the first and second short members 12 and 14. There is no separation. Here, when the joint portions of the wide portions 20a, 20b with the straight portions 18a, 18b are formed in an arc shape as a whole unlike the reference example, the protrusions 16a, 16b may be formed from the holes 22 depending on the magnitude of the external force. May come off.
[0020]
When the first and second short members 12 and 14 are separated from each other, the wide portions 20a and 20b of the protrusions 16a and 16b of the first short member 12 are pushed into the openings 24a and 24b. This can be done easily by pulling out the protrusions 16 a and 16 b of the short member 12 from the hole 22 of the second short member 14. Next, the embodiment shown in FIGS. 3 to 5 will be described.
[0021]
The embodiment relates to a fitting structure of a comb body member 32 and a gripping member 34 constituting a comb 30 suitable for portability. The comb body member 32 shown in FIG. 3 is provided with one or a plurality of rows of a plurality of comb teeth 36a to 36n, and a pair of protrusions 40a and 40b is provided at the end of the base 38. , 40b are formed with linear portions 42a, 42b and wide portions 44a, 44b extending in a substantially arc shape on the outer side with respect to the central axis and extending in a substantially mountain shape on the inner side at the tops of the linear portions 42a, 42b. . Therefore, the joint portions of the wide portions 44a and 44b with the straight portions 42a and 42b protrude in the direction of slightly folding back from the vertical direction, and the anti-joint portion (tip) is tapered. Between the protrusions 40a and 40b, a protrusion 48 is formed integrally with the protrusions 40a and 40b through a groove 46a and 46b having a predetermined width. Grooves 50a and 50b are formed in the projecting portion 48 on both sides in the direction perpendicular to the paper surface in FIG. 3, and therefore the periphery of the projecting portion 48 is formed as a bank-like projection. A large opening 51 having substantially the same shape as the base 38 is formed in the base 38 of the comb body member 32, and the comb body member 32 is reduced in weight. Here, the straight portions 42a and 42b are formed so that the distance between the straight portions 42a and 42b slightly increases toward the top.
[0022]
A hole 52 having a width H narrower than the distance G between the outsides of the tops of the straight portions 42a and 42b of the comb body member 32 of FIG. 3 is formed at the end of the gripping member 34 shown in FIG. Slit-like openings 54 a and 54 b are formed to be slightly expanded outward on both sides of the end of the gripping member 34 so as to communicate with the bottom of the hole 52. Step holes 54a and 54b having substantially the same width J as the width I of the protrusion 48 in FIG. 3 are formed on the upper and lower side surfaces of the hole 52 in FIG.
[0023]
The comb body member 32 and the gripping member 34 are separated when being carried, for example, stored in a pocket of clothes or stored in a short case and carried as a comb 30. The end portion of the base portion 38 of the member 32 and the end portion of the gripping member 34 are fitted and used with one touch. At the time of this fitting, the protrusions 40a and 40b are inserted into the hole 52 of the gripping member 34 while being guided by the wide portions 44a and 44b of the comb body member 32 while being bent in the central axis direction. When the wide portions 44a and 44b reach the positions of the openings 54a and 54b of the gripping member 34, they enter the openings 54a and 54b. At this time, since the width of the hole 52 is formed to be narrower than the distance G between the outsides of the top portions of the straight portions 42a and 42b of the protrusions 40a and 40b, the protrusions 40a and 40b are in a state in which bending remains. Therefore, the portions formed by protruding in the slightly folded direction of the protrusions 40a, 40b are locked so as to press the openings 54a, 54b, and the comb body member 32 is securely fitted to the gripping member 34, The comb is completed (see β part in FIG. 5). Here, the anti-joint side of the wide portions 44a and 44b of the comb body member 32 is formed in a tapered shape with the tip portion cut into an arc shape, so that the wide portion 44a of the comb body member 32 when fitted. 44b do not come into contact with each other, and the wide portions 44a, 44b of the comb body member 32 and the projection 48 do not come into contact with each other. In addition, the mountain-shaped portion of the protrusion 48 of the comb body member 32 is fitted in the step grooves 54 a and 54 b of the hole 52 of the grip member 34. The material of each member of the comb 30 is polypropylene as in the reference example.
[0024]
As shown in FIG. 5 (shown in FIG. 3 and FIG. 4 in a state of being broken at the center of the width of the member in the direction perpendicular to the paper surface), the end of the base 38 of the comb body member 32 and the end of the gripping member 34 In the comb 30 in which the teeth are fitted, for example, if the hair is forcibly combed with the comb teeth 36a to 36n entangled in the hair, or if the comb 30 is inadvertently applied with force, 5 acts on the comb 30, and when the elastic force in the directions of arrows Z1 and Z2 in FIG. 5 acts on the fitting portion, the front portion of the projection 40a is the lower portion in FIG. Further, the front portion of the protrusion 40b is displaced upward in FIG. 2, but the comb body member 32 and the gripping member 34 are securely locked at the β portion in FIG. The protrusions 40a and 40b are not easily removed from the hole 52 of the gripping member 34. There is a. Therefore, the comb 30 is not separated into the comb body member 32 and the grip member 34. In addition, in FIG. 5, when an external force is applied in a direction perpendicular to the paper surface, the projections 40a and 40b alone may cause insufficient strength, but the protrusion 48 serves as a reinforcing material and serves as a fitting portion. The strength of the is secured.
[0025]
When the comb body member 32 and the gripping member 34 are separated, the protrusions 40a of the comb body member 32 are pressed while pushing the wide portions 44a and 44b of the comb body member 32 into the openings 54a and 54b of the gripping member 34. This can be done easily by pulling out 40b from the hole 52 of the gripping member 34.
[0026]
【The invention's effect】
According to the fitting structure of the present invention, the short member divided into an appropriate length is excellent in carrying convenience, and the short member is fitted as a comb when in use. In the fitting structure which can be easily performed, even if an abnormal shearing external force is applied to the fitting portion, it is possible to obtain an effect that the short member is not easily separated and detached. Thereby, a suitable fitting structure can be obtained in the portable comb.
[Brief description of the drawings]
FIG. 1 is a schematic partial side view of first and second short members in a fitting structure according to a reference example.
FIG. 2 is a schematic partial cross-sectional view for explaining a displacement state of each part of a fitting portion of a long member in a fitting structure according to a reference example.
FIG. 3 is a schematic partial side view of a comb body member in the fitting structure according to the embodiment.
FIG. 4 is a schematic partial side view of a gripping member in the fitting structure according to the embodiment.
FIG. 5 is a schematic partial cross-sectional view for explaining a displacement state of each portion of the comb fitting portion in the fitting structure according to the embodiment.
FIG. 6 is a schematic partial side view of a comb body member used in a conventional comb fitting structure.
FIG. 7 is a schematic partial side view of a gripping member used in a conventional comb fitting structure.
FIG. 8 is a schematic partial cross-sectional view for explaining a displacement state of each part of a comb fitting portion in a conventional comb fitting structure.

Claims (3)

A detachable fitting structure for joining the first short member and the second short member into a comb,
Having a protrusion made of a set of flexible materials at the end of the first short member;
The protruding portion is formed with a linear portion and a wide portion that expands in a substantially arc shape outward at least with respect to the central axis at the top of the linear portion,
The joint portion of the wide portion and the top of the straight portion is formed so as to protrude slightly from the vertical direction with respect to the straight portion, and the anti-joint portions do not contact each other when fitted. Formed into a taper,
The one set of protrusions is formed so that the interval between the straight portions slightly increases toward the top of the straight portions,
A protrusion is further formed with a gap between the set of protrusions,
The protruding portion is configured not to contact the protruding portion when fitted,
The end of the second short member has a hole narrower than the distance between the tops of the straight portions of the pair of projections, and communicates with the hole and is perpendicular to the hole. Two openings that are slightly expanded from the outside and open to the outside are formed,
After inserting the protruding portion into the hole while bending the protruding portion, the wide portion of the protruding portion is caused to enter the opening of the hole portion by restoring force, so that the protruding portion remaining in the bent state is slightly A fitting structure characterized in that a portion formed so as to protrude in the direction folded back is locked so as to press the opening, thereby fitting the first short member and the second short member. .   A step groove having a width substantially the same as the width of the protruding portion is formed in the hole portion,
  The fitting structure according to claim 1, wherein the projecting portion is fitted into the step groove at the time of fitting. The first short member is a comb body member having a comb tooth portion,
The fitting structure according to claim 1, wherein the second short member is a gripping member.

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