JP2016109277A - Stationary member, combination member and assembly component - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a fastening member from loosening to an external member without executing significant machining to the fastening member and without using a large space wastefully.SOLUTION: A stationary member 5 prevents a fastening member 60 from rotating to an external member 50, the fastening member 60 having a head part 61 and an extension part 62 linearly extending from the head part 61 and threaded, and inserted into the external member 50. The stationary member 5 includes: an external gear member 20 attachable to the head part 61 on its inner surface; and a body member 10 on the inner surface of which the external tooth member 20 can be fitted, and which can be fixed to the external member 50.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a fixing member, a combination member, and an assembly part.

  Conventionally, it is known that a fastening member having an extended portion in which a screw such as a screw or a bolt is cut is inserted (for example, screwed) into an inside member of a case or an external member such as a substrate. Even when the fastening member is inserted into the external member and fixed once in this way, the fastening member is attached to the external member depending on the environment, such as when the temperature changes severely or when vibration is regularly applied. May loosen.

  In this regard, Patent Document 1 discloses that a terminal detent member is provided at a position adjacent to a rivet portion that is an auxiliary terminal. Moreover, in patent document 2, the special structure which a screw does not rotate is employ | adopted for the screw itself.

JP 2012-164634 A JP 2013-144173 A

  However, when the aspect disclosed in Patent Document 1 is adopted, it is necessary to provide a space for providing the terminal detent member, and a large space is wasted. In addition, when screws such as those disclosed in Patent Document 2 are employed, it is necessary to apply a special process to each of the screws used.

  In view of such a point, the present invention prevents the fastening member from loosening with respect to the external member without significantly processing the fastening member and without using a large space wastefully. A fixing member, a combination member, and an assembly part are provided.

The fixing member according to the present invention is:
A fastening member having a head and an extending portion that extends linearly from the head and is threaded so as not to rotate with respect to the outer member. A fixing member for
An external gear member that can be attached to the head on the inner surface;
A body member that can be fitted to the outer gear member on the inner surface and can be fixed to the outer member;
Is provided.

In the fixing member according to the present invention,
The gear convex part fitted in the fastening recessed part provided in the outer peripheral surface of the head of the fastening member is provided in the inner peripheral surface of the external gear member, or on the outer peripheral surface of the head of the fastening member A gear concave portion into which the provided fastening convex portion is fitted may be provided on the inner peripheral surface of the external gear member.

In the fixing member according to the present invention,
There may be a plurality of the fastening recesses and the gear projections, or there may be a plurality of the fastening projections and the gear recesses.

In the fixing member according to the present invention,
The main body member is provided with a main body protrusion to be fitted into an outer hole provided in the outer member, or the main body member is provided with a main body hole into which the outer protrusion provided in the outer member is fitted. Also good.

In the fixing member according to the present invention,
The main body member is provided with a main body protrusion to be fitted into an external hole provided in the outer member,
The main body protrusion may protrude from the surface of the main body member in the normal direction of the surface.

In the fixing member according to the present invention,
The main body member may be provided with a main body claw that is hooked to the external member.

In the fixing member according to the present invention,
The main body claw may have elasticity and extend along a direction in which a surface of the main body member extends.

The union member according to the present invention is:
A fastening member having a head and an extending portion that extends linearly from the head and is threaded;
A fixing member for preventing the fastening member inserted into the external member from rotating with respect to the external member;
With
The fixing member is
An external gear member that can be attached to the head on the inner surface;
A body member that can be fitted to the outer gear member on the inner surface and can be fixed to the outer member;
Have

In the union member according to the present invention,
A fastening recess is provided on the outer peripheral surface of the head of the fastening member, and a gear convex portion that is fitted into the fastening recess is provided on the inner peripheral surface of the external gear member, or the fastening member A fastening convex portion may be provided on the outer peripheral surface of the head, and a gear concave portion in which the fastening convex portion is fitted on the inner peripheral surface of the external gear member may be provided.

The assembly part according to the present invention comprises:
A fastening member having a head and an extending portion that extends linearly from the head and is threaded;
An external member having the fastening member inserted therein;
A fixing member for preventing the fastening member inserted into the external member from rotating relative to the external member;
With
The fixing member is
An external gear member that can be attached to the head on the inner surface;
A body member that can be fitted to the outer gear member on the inner surface and can be fixed to the outer member;
Have

In the assembly part according to the invention,
The external member is provided with an external hole, and the main body member is provided with a main body protrusion to be fitted into the external hole, or the external member is provided with an external protrusion, and the main body member is provided with the external hole. A body hole into which the protrusion is fitted may be provided.

In the assembly part according to the invention,
The main body member is provided with a main body claw, and the external member is provided with an external hole or an external notch to which the main body claw is caught, or the external member is provided with an external claw, and the main body member A main body hole or a main body notch to which the external nail is caught may be provided.

  According to the present invention, the gear member is attached to the outer surface of the head of the fastening member, the main body member is attached to the outer surface of the gear member, and the main body member can be fixed to the external member into which the fastening member is inserted. ing. For this reason, it can prevent that a fastening member loosens with respect to an external member, without giving a big process to a fastening member, and not using a large space wastefully.

It is the perspective view which showed the decomposition | disassembly state before assembling the assembly components by embodiment of this invention. It is the perspective view which showed the state which assembled the assembly component shown in FIG. It is the perspective view which showed the decomposition | disassembly state before assembling the assembly components by the modification of embodiment of this invention. It is the side view which showed the decomposition | disassembly state before assembling the assembly components by another modification of embodiment of this invention.

Embodiment << Configuration >>
Hereinafter, embodiments of a fixing member, a combination member, and an assembly part according to the present invention will be described with reference to the drawings. Here, FIG. 1 to FIG. 4 are diagrams for explaining an embodiment of the present invention.

  As shown in FIGS. 1 and 2, the fixing member 5 according to the present embodiment has a fastening member 60 such as a screw or a bolt inserted into an external member 50 such as the inside of a case or a substrate with respect to the external member 50. Used to prevent rotation. The fastening member 60 includes a head portion 61 and an extending portion 62 that extends linearly from the head portion 61 and is threaded.

  The “combination member” in the present embodiment includes the fastening member 60 and the fixing member 5 described above. The “assembly part” in the present embodiment includes the fastening member 60, the fixing member 5, and the external member 60 described above.

  The fixing member 5 includes an external gear member 20 that can be attached to the head 61 of the fastening member 60 on the inner surface, and a main body member that can be fitted to the external gear member 20 on the inner surface and can be fixed to the external member 50. 10. In the present embodiment, an internal gear 14 into which the external gear member 20 is fitted is provided on the inner peripheral surface of the main body member 10. Various materials can be used as the material of the external gear member 20, but as an example, resin, metal, or the like can be used. Although various materials can be used as the material of the main body member 10, a resin can be used as an example.

  One or a plurality of fastening recesses 65 may be provided on the outer peripheral surface of the head 61 of the fastening member 60. When such an aspect is adopted, the gear projection 25 fitted into the fastening recess 65 is provided on the inner peripheral surface of the external gear member 20. In the case where a plurality of fastening recesses 65 are provided, the intervals between the fastening recesses 65 may be evenly arranged in a plane orthogonal to the extending part 62 of the fastening member 60, or a pair of The fastening recesses 65 may be arranged so as to face each other (see FIG. 1). Since the gear projections 25 are provided corresponding to the fastening recesses 65, when there are a plurality of fastening recesses 65, a plurality of gear projections 25 are provided, and the intervals between the fastening recesses 65 are equal. When the intervals between the gear projections 25 are equal and the pair of fastening recesses 65 are arranged to face each other, the pair of gear projections 25 are arranged to face each other. Become. In the aspect shown in FIG. 1, the two fastening recesses 65 are the heads 61 of the fastening member 60 and are formed at positions facing each other. And the gear convex part 25 inserted in each fastening recessed part 65 forms the inner peripheral surface of the external gear member 20. In the present embodiment, “opposing each other” means that the other is located on the opposite side across the axis of the extending portion 62 of the fastening member 60 with respect to the other.

  On the other hand, as shown in FIG. 3, one or more fastening protrusions 67 may be provided on the outer peripheral surface of the head 61 of the fastening member 60. When such an aspect is adopted, the gear concave portion 27 into which the fastening convex portion 67 is fitted is provided on the inner peripheral surface of the external gear member 20. When a plurality of fastening projections 67 are provided, the intervals between the fastening projections 67 may be arranged so as to be uniform within a plane orthogonal to the extending part 62 of the fastening member 60. The fastening protrusions 67 may be arranged so as to face each other (see FIG. 3). Since the gear recesses 27 are provided corresponding to the fastening projections 67, when there are a plurality of fastening projections 67, a plurality of gear recesses 27 are provided, and the intervals between the fastening projections 67 are equal. When the gear recesses 27 are evenly spaced and the pair of fastening protrusions 67 are disposed so as to face each other, the pair of gear recesses 27 are disposed so as to face each other. Become.

  The cross-section of each of the gear projection 25 and the fastening recess 65 may be a substantially triangular shape as shown in FIG. 1, but may be another polygonal shape such as a substantially square shape, The shape may be a semicircular shape. From the viewpoint that the external gear member 20 does not rotate with respect to the fastening member 60, the shape of the cross section of the gear projection 25 and the shape of the cross section of the fastening recess 65 are preferably the same. .

  The cross-section of each of the fastening convex portion 67 and the gear concave portion 27 may be substantially triangular as shown in FIG. 3, but may be another polygonal shape such as a substantially rectangular shape, The shape may be a semicircular shape. From the viewpoint that the external gear member 20 does not rotate with respect to the fastening member 60, the shape of the cross section of the gear recess 27 and the shape of the cross section of the fastening projection 67 are preferably the same. .

  The gear projection 25 is slightly smaller than the fastening recess 65, and a slight play may be formed between the gear projection 25 and the fastening recess 65. Similarly, the fastening protrusion 67 is slightly smaller than the gear recess 27, and a slight play may be formed between the fastening protrusion 67 and the gear recess 27.

  The fastening convex portion 67 and the fastening concave portion 65 are mixedly provided on the head 61 of the fastening member 60, and the gear concave portion 27 corresponding to the fastening convex portion 67 and the fastening convex portion 67 corresponding to the fastening concave portion 65 are the external gear member. 20 may be provided on the inner peripheral surface.

  As shown in FIG. 1, the external member 50 is provided with one or a plurality of first external holes 56 (included in the “external hole” in the claims) (in the embodiment shown in FIG. A first external hole 56 is provided.). The “first external hole” in the present application may be completely penetrated, or may be a concave shape without penetrating. When such a first external hole 56 is provided in the external member 50, one or a plurality of main body protrusions 16 that are fitted into the first external hole 56 may be provided in the main body member 10. Examples of the main body protrusion 16 include those protruding from the surface of the main body member 10 in the normal direction of the surface (in the embodiment shown in FIGS. 1 and 3, the main body protrusion 16 is the lower surface of the main body member 10. Or may protrude downward from the side surface of the main body member 10. When the external member 50 is disposed on the side of the fixing member 5, the main body protrusion 16 may protrude to the side. That is, the main body protrusion 16 may be anything that can be fitted into the first external hole 56 formed in the external member 50 with as little gap as possible.

  In the aspect shown in FIG. 1, the external member 50 is positioned below the fixed member 5. The main body protrusion 16 protrudes downward from the lower surface of the main body member 10. In the embodiment shown in FIG. 1, the first outer hole 56 has an oval cross section, and the main body protrusion 16 has an oval cross section in accordance with the shape of the first outer hole 56. Yes. From the viewpoint that the main body member 10 does not rotate with respect to the outer member 50, it is preferable that the shape of the cross section of the first outer hole 56 is the same as the shape of the cross section of the main body protrusion 16. The main body protrusion 16 is slightly smaller than the first outer hole 56, and a slight play may be formed between the main body protrusion 16 and the first outer hole 56.

  When a plurality of main body protrusions 16 are provided, the main body protrusions 16 may be arranged so as to be uniform within a plane orthogonal to the extending portion 62 of the fastening member 60, or the pair of main body protrusions 16 may be mutually connected. You may arrange | position so that it may oppose. In these cases, each first outer hole 56 is formed corresponding to each main body protrusion 16.

  In addition, as shown in FIG. 4, one or a plurality of external protrusions 58 may be provided on the external member 50. When such an external protrusion 58 is provided on the external member 50, one or a plurality of first main body holes 18a into which the external protrusions 58 are fitted into the main body member 10 (the “main body hole” in the claims). May be included). Examples of the external protrusion 58 include those protruding upward from the upper surface of the external member 50, but may be protruding upward from the side surface of the external member 50. However, the present invention is not limited to this, and the external protrusion 58 may be anything that can be fitted into the first main body hole 18 a formed in the main body member 10.

  When a plurality of external protrusions 58 are provided, the external protrusions 58 may be arranged so as to be uniform within a plane orthogonal to the extending portion 62 of the fastening member 60, or the pair of external protrusions 58 may be mutually connected. You may arrange | position so that it may oppose. In these cases, each first main body hole 18 a is formed corresponding to each external protrusion 58.

  As shown in FIGS. 1 and 3, the main body member 10 is provided with one or a plurality of main body claws 11-13 that are hooked to the external member 50. The main body claw 11-13 has elasticity. Moreover, the main body claws 11-13 may extend along the direction in which the surface of the main body member 10 extends (in the mode shown in FIGS. 1 and 3, the main body claws 11-13 extend downward from the side surface of the main body member 10). . The external member 50 is formed with external notches 51 and 52 and second external holes 53 (included in “external holes” in claims) for hooking the main body claws 11-13. In the mode shown in FIGS. 1 and 3, the main body claw 11-13 is provided on the side surface of the main body member 10 and extends downward. The main body claw 11-13 has elasticity in the normal direction of the side surface of the main body member 10. 1 and 3, the cross section of the second external hole 53 into which the main body claw 13 is inserted is larger than the cross section of the first external hole 56 into which the main body protrusion 16 is inserted. .

  As shown in FIG. 4, the external member 50 may be provided with one or a plurality of external claws 59 that are hooked to the main body member 10. This external claw 59 may also have elasticity. Further, the main body member 10 may be formed with a main body notch 19 and a second main body hole 18b (included in the “main body hole” in the claims) for hooking the external claw 59. In the aspect shown in FIG. 4, the external claw 59 has elasticity in the normal direction of the side surface of the external member 50 (the surface extending in the vertical direction in FIG. 4).

  The external claw 59 and the main body claw 11-13 may be used in combination. In this case, the first main body hole 18a, the second main body hole 18b, and / or the main body notch 19 corresponding to the external claw 59 are provided in the main body member 10, and the second external hole 53 corresponding to the main body claw 11-13. And / or external notches 51, 52 are provided in the external member 50.

  In the embodiment shown in FIGS. 1 to 3, the cross section of the main body member 10 is substantially rectangular. And the 1st main body nail | claw 11 is provided in the 1st side surface (the back right side surface of FIG. 1 thru | or FIG. 3) of the main body member 10, and the 2nd side surface (FIG. 1) extended in the direction substantially orthogonal to the said 1st side surface. A second main body claw 12 is provided on the right front side of FIGS. A third body claw 13 is provided at a corner between the third side facing the first side and the fourth side facing the second side (the corner on the left back side in FIGS. 1 to 3). It has been. 1 to 3, the main body protrusion 16 is provided on the axial side of the extending portion 62 of the fastening member 60 relative to the third main body claw 13, and the third main body claw 13 and the fastening member 60 The main body protrusion 16 is provided in a straight line connecting the axis of the extending portion 62.

  The shape of the external member 50 is made according to the shape of the main body member 10 of the fixing member 5, or the shape of the main body member 10 of the fixing member 5 is made according to the shape of the external member 50. Although the embodiment shown in FIGS. 1 to 3 is merely an example, the shape of the external member 50 shown in FIGS. 1 to 3 corresponds to the shape of the main body member 10 shown in FIGS. 1 to 3. ing. More specifically, the external member 50 is provided with a first external notch 51 on which the first main body claw 11 is hooked, and a second external cutout 52 on which the second main body claw 12 is hooked. A second external hole 53 into which the main body claw 13 is inserted is provided, and a first external hole 56 into which the main body protrusion 16 is inserted is provided.

"effect"
Next, effects achieved by the present embodiment having the above-described configuration, which have not yet been described, or particularly important effects will be described.

  According to the present embodiment, the external gear member 20 is attached to the outer peripheral surface of the head 61 of the fastening member 60 inserted into the external member 50, and the main body member 10 is attached to the outer peripheral surface of the gear member. The main body member 10 can be fixed to the external member 50. For this reason, according to the present embodiment, there is no need to significantly process the fastening member 60 as in the aspect disclosed in Patent Document 1, and a large space as in the aspect disclosed in Patent Document 2. It is possible to prevent the fastening member 60 from loosening with respect to the external member 50 without wasting it.

  When the external member 50 is made of a case and the head 61 of the fastening member 60 is located in the case, when the head 61 of the fastening member 60 cannot be accessed from the outside, the loosened fastening member 60 is reattached. To retighten, it is necessary to open the case, which is very troublesome. In this regard, by using the fixing member 5 as in the present embodiment, it is possible to prevent such a loosening of the fastening member 60 in advance.

  As shown in FIG. 1, the fastening concave portion 65 is provided on the outer peripheral surface of the head 61 of the fastening member 60, and the gear convex portion 25 fitted into the fastening concave portion 65 is provided on the inner peripheral surface of the external gear member 20. When employed, the fastening member 60 can be attached to the external gear member 20 simply by fitting the gear convex portion 25 on the inner peripheral surface of the external gear member 20 into the fastening recess 65 on the outer peripheral surface of the head 61 of the fastening member 60. Can be prevented from rotating. Further, even if the fastening member 60 that is in circulation is processed and used, it is also advantageous in that the processing to the fastening member 60 only needs to cut the head 61 and form the fastening recess 65.

  When an aspect in which a plurality of fastening concave portions 65 are provided on the outer peripheral surface of the head 61 of the fastening member 60 and a plurality of gear convex portions 25 fitted into the fastening concave portions 65 is employed is adopted, the fastening member 60 is an external gear. It can prevent more reliably rotating with respect to the member 20. Thus, when providing the several fastening recessed part 65 and the some gear convex part 25, the space | interval of the some fastening recessed part 65 becomes equal, and the space | interval of the some gear convex part 25 becomes equal. If this is the case, it is advantageous in that the force applied to the external gear member 20 can be dispersed in a well-balanced manner when the fastening member 60 is about to rotate.

  As shown in FIG. 3, the fastening convex portion 67 is provided on the outer peripheral surface of the head portion 61 of the fastening member 60, and the gear concave portion 27 into which the fastening convex portion 67 is fitted is provided on the inner peripheral surface of the external gear member 20. Is used, the fastening member 60 can be attached to the external gear member 20 simply by fitting the fastening convex portion 67 on the outer circumferential surface of the head 61 of the fastening member 60 into the gear concave portion 27 on the inner circumferential surface of the external gear member 20. It can prevent rotating with respect to it.

  In the case where a plurality of fastening convex portions 67 are provided on the outer peripheral surface of the head portion 61 of the fastening member 60 and a plurality of gear concave portions 27 into which the fastening convex portions 67 are fitted are employed, the fastening member 60 is outside. It can prevent more reliably rotating with respect to the gear member 20. Thus, when providing the some fastening convex part 67 and the some gear recessed part 27, the space | interval of the some fastening convex part 67 becomes equal, and the space | interval of the some gear recessed part 27 becomes equal. If this is the case, it is advantageous in that the force applied to the external gear member 20 can be dispersed in a well-balanced manner when the fastening member 60 is about to rotate.

  As shown in the present embodiment, the external gear member 20 is attached to the outer peripheral surface of the head 61 of the fastening member 60, and the main body member 10 is attached to the outer peripheral surface of the gear member. Thus, the fastening member 60 can be fixed so as not to rotate with respect to the external member 50 regardless of the rotational angle of the fastening member 60 (see FIGS. 1 to 3). This point will be described. The head 61 of the fastening member 60 is provided with a fastening recess 65 or a fastening projection 67. When the screwed fastening member 60 is inserted into the external member 50, the fastening recess 65 or the fastening projection 67 may be positioned at any position. In this regard, according to the present embodiment, since the external gear member 20 is attached to the head 61 of the fastening member 60, the fastening recess 65 or the fastening convex portion 67 is deviated in units of the gear pitch of the external gear member 20. Alternatively, the external gear member 20 can be attached to the internal gear 14 of the main body member 10. The same can be said even if the gear pitch is changed under the condition that the number of gears of the external gear member 20 and the internal gear 14 is the same. As a result, the fastening member 60 can be fixed so as not to rotate with respect to the external member 50 regardless of the rotational angle of the fastening member 60.

  In this respect, it is conceivable to increase the number of the fastening recesses 65 or the fastening projections 67 so as to perform the same function as the external gear member 20. However, when such an aspect is adopted, it is necessary to perform significant processing on the fastening member 60 made of metal or the like, which is difficult to process, which is not very useful as compared with the prior art. On the other hand, by using the external gear member 20 and the main body member 10 as in the present embodiment, it is not necessary to perform significant processing on the fastening member 60, which can be very beneficial compared to the prior art. it can.

  As shown in FIGS. 1 and 3, the first external hole 56 is provided in the external member 50, and the main body protrusion 16 of the main body member 10 is fitted in the first external hole 56 in the main body member 10. Is inserted into the first external hole 56 of the external member 50, so that the main body member 10 can be prevented from rotating with respect to the external member 50.

  When the external member 50 is provided with a plurality of first external holes 56 and the main body member 10 is provided with a plurality of main body protrusions 16 to be fitted into the first external holes 56, the main body member 10 is the external member. It can prevent more reliably rotating with respect to 50. When the plurality of first external holes 56 and the plurality of main body protrusions 16 are provided in this way, the intervals between the plurality of first outer holes 56 are equal, and the intervals between the plurality of main body protrusions 16 are equal. This is advantageous in that the force applied to the external member 50 can be distributed in a balanced manner when the external gear member 20 and the main body member 10 are about to rotate as a result of the fastening member 60 attempting to rotate.

  As shown in FIG. 4, the external member 50 is provided with an external protrusion 58, and the main body member 10 is provided with a first main body hole 18 a into which the external protrusion 58 is fitted, and the internal gear 14 combined with the external gear member 20. When a certain aspect is adopted, it is possible to prevent the main body member 10 from rotating with respect to the outer member 50 simply by inserting the outer protrusion 58 of the outer member 50 into the first main body hole 18 a of the main body member 10. it can.

  The external member 50 is provided with a plurality of external protrusions 58, and the main body member 10 is provided with a plurality of first main body holes 18 a into which the external protrusions 58 are fitted, and the external gear member 20 is combined with the external gear member 20. When employed, the main body member 10 can be more reliably prevented from rotating with respect to the external member 50. When the plurality of external protrusions 58 and the plurality of first main body holes 18a are provided in this way, the distance between the plurality of external protrusions 58 is equal, and the distance between the plurality of first main body holes 18a is equal. This is advantageous in that the force applied to the external member 50 can be distributed in a balanced manner when the external gear member 20 and the main body member 10 are about to rotate as a result of the fastening member 60 attempting to rotate.

  As shown in FIGS. 1 to 3, a main body claw 11-13 is provided on the main body member 10, and external notches 51 and 52 and a second external hole 53 for hooking the main body claw 11-13 on the external member 50 are provided. When the formed mode is adopted, the main body member 10 can be prevented from rotating with respect to the external member 50.

  The main body member 10 is provided with a plurality of main body claws 11-13, and a plurality of external notches 51, 52 and second external holes 53 for the main body claws 11-13 to be hooked on the outer member 50 are employed. In this case, the main body member 10 can be more reliably prevented from rotating with respect to the external member 50. When the plurality of main body claws 11-13 are provided as described above, the intervals between the plurality of main body claws 11-13 become equal, and the intervals between the plurality of external notches 51, 52 and the second outer holes 53 are equal. As a result, the force applied to the external member 50 can be dispersed in a balanced manner when the external gear member 20 and the main body member 10 are about to rotate as a result of the fastening member 60 attempting to rotate. It is.

  As shown in FIG. 4, even when an external claw 59 is provided on the external member 50 and the main body notch 19 and the second main body hole 18b are formed to be hooked on the main body member 10, The main body member 10 can be prevented from rotating with respect to the external member 50.

  When the external member 50 is provided with a plurality of external claws 59 and a plurality of main body notches 19 and second main body holes 18b for the external claws 59 to be hooked on the main body member 10 are employed, the main body member It can prevent more reliably that 10 rotates with respect to the external member 50. FIG. Thus, when providing the some external nail | claw 59, the space | interval of the some external claw 59 becomes equal, and the space | interval of the some main body notch 19 and the 2nd main body hole 18b is equal. As a result of the fastening member 60 trying to rotate, the force applied to the external member 50 can be dispersed in a balanced manner when the external gear member 20 and the main body member 10 are about to rotate.

  In general, it is difficult to provide the external member 50 with members such as the external protrusions 58 and the external claws 59 because the external protrusions 58 and the external claws 59 are provided later on the external member 50. . On the other hand, when the first external hole 56, the second external hole 53, and the external notches 51 and 52 are provided in the external member 50, it is only necessary to scrape the member, so that the processing is easy. If, for example, resin is selected as the material of the main body member 10, when the main body claws 11-13 and the main body protrusions 16 are provided, the main body member 10 may be manufactured simply by pouring the resin into the mold. It is very easy. From this point of view, as shown in FIGS. 1 to 3, the external member 50 is provided with a first external hole 56, a second external hole 53 and external notches 51 and 52, and the main body member 10 has a main body protrusion 16 and a main body claw. The mode of providing 11-13 is more advantageous than the mode of providing the main body member 10 with the first main body hole 18a, the second main body hole 18b, and the main body notch 19, and providing the external member 50 with the external protrusion 58 and the external claw 59. It is.

  The external gear member 20 has a “bevel gear” shape in which the radius decreases toward the opposite side (the upper side in FIG. 1) from the external member 50 on the axis of the fastening member 60 that is not to be loosened. Also good. In this case, the radius of the internal gear 14 of the main body member 10 also increases toward the opposite side (upper side in FIG. 1) of the external member 50 on the axis of the fastening member 60 according to the shape of the external gear member 20. Get smaller. By adopting such a mode, even if the external gear member 20 is attached to the fastening member 60 and the main body member 10 is attached to the external gear member 20 and the external member 50, It is possible to prevent a situation in which the gear member 20 is naturally detached from the main body member 10.

  Moreover, although the fastening member 60 shown by drawing becomes the aspect which assumed the CAP screw bolt, naturally it is also possible to employ | adopt the aspect different from such an aspect. As an example, a pan-head screw with a washer can be adopted as the fastening member 60.

  The description of each embodiment and the disclosure of the drawings described above are merely examples for explaining the invention described in the scope of the claims, and the claims are made according to the description of the above-described embodiments or the disclosure of the drawings. The invention described in the scope is not limited.

5 fixing member 10 body member 11-13 body claw 16 body protrusion 18a first body hole (body hole)
18b Second body hole (body hole)
19 Main body notch 20 External gear member 25 Gear convex portion 27 Gear concave portion 50 External member 53 Second external hole (external hole)
56 First external hole (external hole)
58 External protrusion 59 External claw 60 Fastening member 61 Head part 62 Extension part 65 Fastening recessed part 67 Fastening convex part

Claims (12)

A fastening member having a head and an extending portion that extends linearly from the head and is threaded so as not to rotate with respect to the outer member. A fixing member for
An external gear member that can be attached to the head on the inner surface;
A body member that can be fitted to the outer gear member on the inner surface and can be fixed to the outer member;
A fixing member comprising:   The gear convex part fitted in the fastening recessed part provided in the outer peripheral surface of the head of the fastening member is provided in the inner peripheral surface of the external gear member, or on the outer peripheral surface of the head of the fastening member The fixing member according to claim 1, wherein a gear concave portion into which the provided fastening convex portion is fitted is provided on an inner peripheral surface of the external gear member.   The fixing member according to claim 2, wherein there are a plurality of the fastening concave portions and the gear convex portions, or a plurality of the fastening convex portions and the gear concave portions.   The main body member is provided with a main body protrusion to be fitted into an outer hole provided in the outer member, or the main body member is provided with a main body hole into which the outer protrusion provided in the outer member is fitted. The fixing member according to any one of claims 1 to 3, wherein the fixing member is provided. The main body member is provided with a main body protrusion to be fitted into an external hole provided in the outer member,
The fixing member according to claim 4, wherein the main body protrusion protrudes from a surface of the main body member in a normal direction of the surface.   The fixing member according to claim 1, wherein a main body claw that is hooked to the external member is provided on the main body member.   The fixing member according to claim 6, wherein the main body claw has elasticity and extends along a direction in which a surface of the main body member extends. A fastening member having a head and an extending portion that extends linearly from the head and is threaded;
A fixing member for preventing the fastening member inserted into the external member from rotating with respect to the external member;
With
The fixing member is
An external gear member that can be attached to the head on the inner surface;
A body member that can be fitted to the outer gear member on the inner surface and can be fixed to the outer member;
An union member characterized by comprising:   A fastening recess is provided on the outer peripheral surface of the head of the fastening member, and a gear convex portion that is fitted into the fastening recess is provided on the inner peripheral surface of the external gear member, or the fastening member 9. The combination according to claim 8, wherein a fastening convex portion is provided on the outer peripheral surface of the head, and a gear concave portion into which the fastening convex portion is fitted is provided on the inner peripheral surface of the external gear member. Element. A fastening member having a head and an extending portion that extends linearly from the head and is threaded;
An external member having the fastening member inserted therein;
A fixing member for preventing the fastening member inserted into the external member from rotating relative to the external member;
With
The fixing member is
An external gear member that can be attached to the head on the inner surface;
A body member that can be fitted to the outer gear member on the inner surface and can be fixed to the outer member;
An assembly part comprising:   The external member is provided with an external hole, and the main body member is provided with a main body protrusion to be fitted into the external hole, or the external member is provided with an external protrusion, and the main body member is provided with the external hole. The assembly part according to claim 10, wherein a body hole into which the protrusion is fitted is provided.   The main body member is provided with a main body claw, and the external member is provided with an external hole or an external notch to which the main body claw is caught, or the external member is provided with an external claw, and the main body member The assembly part according to claim 10, wherein a main body hole or a main body notch to which the external claw is caught is provided.

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