JP6306549B2 - Mounting structure for fastening auxiliary parts, apparatus including the same, and mounting method for fastening auxiliary parts - Google Patents

Description

  The present invention relates to a technique of a fastening auxiliary component (nut) used for fastening between members.

  FIG. 17A and FIG. 18A show examples of components used when screwing the resin casing. The part 100 shown in FIG. 17A is called an insert nut, and the part 101 in FIG. 18A is called a helical coil. On the inner wall surfaces of these components 100 and 101, thread grooves that are screwed into the screws are cut. The parts 100 and 101 are attached to the resin casing 102 as shown in FIGS. 17B and 18B. For example, the component 100 is attached to the resin casing 102 when it is attached at the time of molding the resin casing 102 by being incorporated in a molding die, or when it is attached by being press-fitted after the resin casing 102 is molded. There is. The attachment of the component 101 to the resin casing 102 is performed using a tool after the resin casing 102 is molded, for example.

  Moreover, when screwing the resin housing | casing 102, the plate-shaped nut 103 as shown to Fig.19 (a) may be utilized. The plate nut 103 is attached to the resin casing 102 as shown in FIG. 19B by being press-fitted into a slit 104 formed in the resin casing 102.

  In addition to the parts 100, 102, and 103 as described above, there is a plate-like part 105 as shown in FIG. The component 105 is attached to the member 110 to be attached by screws 108a and 108b. Further, a screw hole 111 is formed in the component 105. A screw 113 can be screwed into the screw hole 111. The screw 113 inserted through the screw insertion hole formed in the member 114 to be fastened and the screw insertion hole formed in the member 110 in order is screwed into the screw hole 111 of the component 105, thereby The members 110 and 114 can be fastened with the screws 113 as shown in FIG.

  Patent Documents 1 and 2 disclose a structure in which a plate-like nut is fixed (held) to a member to be attached.

Japanese Utility Model Publication No. 5-45219 JP 2013-119944 A

  The parts 100, 101, 103, and 105 that assist screwing as described above have the following problems. That is, when the components 100, 101, and 103 are attached to a member to be attached, there may be a positional shift that causes the mounting position to shift from the designed position. Since the parts 100, 101, and 103 are attached to a member to be attached by press-fitting, molding, or the like, there is a problem that it is difficult to correct a positional deviation during attachment. If the parts 100, 101, and 103 are misaligned as described above, it takes time to fasten the fastening target member using the parts 100, 101, and 103. Further, there arises a problem that the member to be fastened cannot be fastened as designed using the parts.

  Further, as described above, the component 105 may be displaced when attached to a member to be attached, and there is a problem that it is difficult to correct the displacement.

  The present invention has been devised to solve the above-described problems. That is, a main object of the present invention is to provide a technique for facilitating a member fastening operation using a fastening auxiliary component that assists screwing.

In order to achieve the above-mentioned object, the fastening auxiliary part of the present invention is
A base having a reference surface facing a formation region of a screw insertion hole formed in a member to be mounted;
The substrate includes
A screw hole into which a screw inserted into the screw insertion hole in the member to be mounted is screwed;
A protruding portion that protrudes from the reference surface and loosely fits in a positioning hole formed in the member to be mounted is formed.

Moreover, the mounting structure of the fastening auxiliary component of the present invention is as follows.
In the member to be mounted to which the fastening auxiliary component of the present invention is mounted,
A positioning hole in which the protruding portion of the fastening auxiliary component is loosely fitted;
A screw insertion hole having an opening facing the opening of the screw hole of the fastening auxiliary component in a state where the protrusion of the fastening auxiliary component is loosely fitted in the positioning hole;
A screw inserted through the screw insertion hole of the mounting target member in a state in which the protruding portion of the fastening auxiliary component is loosely fitted into the positioning hole of the mounting target member is the fastening auxiliary component. The fastening auxiliary component is mounted on the mounting target member by being screwed into the screw hole.

  Furthermore, the apparatus provided with the fastening auxiliary component in the present invention is mounted with the fastening auxiliary component of the present invention with the mounting structure of the present invention.

Furthermore, the mounting method of the fastening auxiliary component of the present invention includes:
A screw inserted into the screw insertion hole in the mounting target member in the base of the fastening auxiliary component having a base having a reference surface facing a formation region of a screw insertion hole formed in the mounting target member A screw hole into which the screw is engaged, and a protrusion protruding from the reference surface and projecting into a positioning hole formed in the member to be mounted,
Loosely fitting the protruding portion of the fastening auxiliary part into the positioning hole in the member to be mounted;
In this state, the fastening auxiliary component is mounted on the mounting target member by screwing the screw inserted through the screw insertion hole of the mounting target member and the screw hole of the fastening auxiliary component. To do.

  ADVANTAGE OF THE INVENTION According to this invention, the fastening operation | work between the members using a fastening auxiliary component can be made easy.

It is a perspective view showing typically the fastening auxiliary parts of a 1st embodiment concerning the present invention. It is a perspective view which represents typically the mounting structure which mounts the fastening auxiliary | assistance part of 1st Embodiment to the member of mounting | wearing object. It is a perspective view showing typically a tabular nut which is a fastening auxiliary part of a 2nd embodiment concerning the present invention. It is a figure showing the plate-shaped nut represented by FIG. It is a figure explaining an example of the usage type of the plate-shaped nut in 2nd Embodiment. It is a figure which expands and represents the mounting part of the plate-shaped nut in FIG. It is a figure showing the state which looked at the attachment part of the plate-shaped nut represented by FIG. 6 from the back side. It is a top view of the mounting part of the plate-shaped nut represented by FIG. It is typical sectional drawing of the AA part in FIG. It is a three-plane figure which represents typically the plate-shaped nut which is the fastening auxiliary | assistance part of 3rd Embodiment which concerns on this invention. It is a figure explaining an example of the usage type of the plate-shaped nut in 3rd Embodiment. It is a top view which represents typically the plate-shaped nut which is the fastening auxiliary | assistance part of 4th Embodiment which concerns on this invention. It is a figure explaining an example of the usage type of the plate-shaped nut in 4th Embodiment. It is a figure which decomposes | disassembles and demonstrates the usage form of the plate-shaped nut represented by FIG. It is a figure explaining other embodiment in the mounting structure of the fastening auxiliary component which concerns on this invention. It is a figure which represents typically the aspect by which the plate-shaped nut which is a fastening auxiliary component is mounted | worn with the mounting structure of the fastening auxiliary component represented by FIG. It is a figure explaining an example of an insert nut. It is a figure explaining an example of a helical coil. It is a figure explaining an example of a plate nut. It is a figure explaining the structural example of another plate-shaped nut. It is a figure explaining the structural example of a clip-shaped nut.

  Embodiments according to the present invention will be described below with reference to the drawings.

<First Embodiment>
FIG. 1 is a diagram schematically illustrating a fastening auxiliary component according to a first embodiment of the present invention. FIG. 2 is a diagram schematically illustrating a structure in which the fastening auxiliary component of the first embodiment is mounted on a member to be mounted (attached).

  The fastening auxiliary component 1 according to the first embodiment is formed of, for example, metal, and is mounted on a member to be mounted (for example, a member formed of a resin material) 7 as illustrated in FIG. A screw insertion hole 8 through which the screw 12 is inserted is formed in the member 7 to be mounted. In addition, a positioning hole 10 is formed on a surface (back surface in FIG. 2) 7b on the side of the mounting target member 7 on which the fastening auxiliary component 1 is mounted. In the example shown in FIG. 2, the positioning hole 10 is in the form of a through hole penetrating from the back surface 7b to the front surface 7a of the member 7 to be mounted. However, the positioning hole 10 penetrates the recess formed in the back surface 7b (that is, penetrates the front surface 7a). It is also possible to use a mode that is not a hole).

  The fastening auxiliary component 1 has a base 2. The base 2 includes a reference surface 3 that faces a formation region of the screw insertion hole 8 formed in the member 7 to be mounted. A screw hole 4 is formed in the base 2. A screw groove is cut in the inner wall surface of the screw hole 4, and the screw 12 inserted through the screw insertion hole 8 in the member 7 to be mounted is screwed into the screw hole 4.

  Further, the base 2 is formed with a protrusion 5 that protrudes from the reference surface 3. The protrusion 5 is formed so as to fit in the positioning hole 10 in the member 7 to be mounted. By inserting the protruding portion 5 into the positioning hole 10, the fastening auxiliary component 1 (base 2) in the mounting target member 7 can be positioned.

  In the first embodiment, the protrusion 5 does not fit into the positioning hole 10 without a gap, and the size of the protrusion 5 is designed to be smaller than the positioning hole 10. Fit. In other words, the protrusion 5 is fitted in a state where there is play in the positioning hole 10.

  In the example of FIGS. 1 and 2, two protrusions 5 and positioning holes 10 are formed, but one protrusion 5 and one positioning hole 10 may be provided. The number may be formed, and the number is not limited.

  The fastening auxiliary component 1 according to the first embodiment is mounted without performing laborious work such as press-fitting into the resin casing as compared with the components 100, 101, and 103 shown in FIGS. Since it can be mounted on the target member, it is possible to reduce the labor of mounting the auxiliary fastening component 1.

  In addition, in the first embodiment, since the protruding portion 5 is loosely fitted in the positioning hole 10, the fastening auxiliary component 1 is a member to be mounted even in the state where the protruding portion 5 is fitted in the positioning hole 10. 7 can be displaced. For this reason, for example, even if the formation position of the screw hole 8 of the member 7 to be mounted is deviated from the design position, the screw hole 8 that has been misaligned and the screw hole 4 of the fastening auxiliary component 1 are fastened. The auxiliary component 1 can be easily displaced. Thereby, when fastening the member to be fastened using the fastening auxiliary component 1, adverse effects such as displacement of the screw holes 8 are reduced, and the fastening operation can be smooth.

Second Embodiment
The second embodiment according to the present invention will be described below.

  FIG. 3 is a perspective view showing a plate-like nut that is a fastening auxiliary component of the second embodiment, and FIG. 4 is a three-side view showing the plate-like nut. The plate-like nut 15 according to the second embodiment is attached to a portion where the case 18 and the cover 19 of the housing 17 are screwed as shown in FIGS. 5 (a) and 5 (b). That is, the case 18 is formed of a resin material. For example, a communication device or an electronic device is accommodated in the case 18. The cover 19 has a function of protecting, for example, a circuit of a communication device or an electronic device housed in the case 18 by covering the opening of the case 18. The cover 19 is made of, for example, a resin material. The cover 19 is connected to the case 18 so as to be rotatable about the connecting portion, and the opening of the case 18 can be opened and closed. FIG. 5A shows a state where the opening of the case 18 is open, and FIG. 5B shows a state where the opening of the case 18 is closed by the cover 19. Such a case 18 and cover 19 constitute a communication device or an electronic device.

  The case 18 and the cover 19 are provided with a configuration in which the case 18 and the cover 19 are fastened with screws to seal the inside of the case 18. That is, a screw insertion hole 20 is formed in the cover 19. In the case 18, a protruding piece 21 protrudes from a portion of the cover 19 that faces the formation region of the screw insertion hole 20 when the cover 19 closes the opening. A screw insertion hole 22 is formed in the protruding piece 21. A screw common to the screw insertion hole 20 of the cover 19 is inserted into the screw insertion hole 22.

  The plate-like nut 15 of the second embodiment is attached to the protruding piece 21 in the case 18, for example, and the case 18 and the cover 19 are fastened by screws inserted into the screw insertion holes 20 and 22 of the case 18 and the cover 19. It is a member to assist.

  FIG. 6A is a diagram schematically illustrating the plate-like nut 15 and the protruding piece 21 that is a member to be mounted. FIG. 6B is a diagram schematically illustrating an aspect in which the plate nut 15 is mounted on the protruding piece 21 (that is, a mounting structure of the plate nut 15). FIG. 7A is a view showing the plate-like nut 15 and the protruding piece 21 shown in FIG. 6A as viewed from the bottom side of the case 18. FIG. 7B is a diagram illustrating a state in which the plate-like nut 15 is attached to the protruding piece 21 (a structure in which the plate-like nut 15 is attached) as seen from the bottom surface side of the case 18. Further, FIG. 8 is a plan view of the plate-like nut 15 and the protruding piece 21 shown in FIG. 6A as viewed from above in FIG. FIG. 9 is a diagram illustrating a state in which the plate-like nut 15 is attached to the protruding piece 21 by a cross-sectional view taken along a line AA illustrated in FIG. 8.

  As described above, a screw insertion hole 22 is formed in the protruding piece 21. Further, as shown in FIGS. 6A, 6B, 8 and the like, the protruding piece 21 is formed with positioning holes 23a, 23b penetrating from the back surface (bottom surface) side to the front surface side. Has been. Furthermore, guide walls 24 a and 24 b are provided on the side edges on both sides of the protruding piece 21. These guide walls 24a and 24b are formed to extend toward the bottom surface in FIG. 6A, and extended portions 25a and 25b extending in directions facing each other are formed at the extended tip portions. The protruding piece 21, the guide walls 24a and 24b, and the extending portions 25a and 25b are formed of an elastic resin material or rubber material. The projecting piece 21, the guide walls 24 a and 24 b, and the extending portions 25 a and 25 b constitute an accommodation space 26 that accommodates the plate nut 15. The accommodation space 26 is provided with an insertion port into which the plate nut 15 is inserted.

  In the second embodiment, the plate nut 15 is made of a metal material. The plate nut 15 has a flat substrate 27. One substrate surface 28 of the base body 27 is set as a reference surface facing a formation region of the screw insertion hole 22 in the protruding piece 21 to be mounted. In the description of the second embodiment, the reference surface 28 of the base 27 is also referred to as the front surface, and the substrate surface 29 on the base 27 opposite to the reference surface 28 is also referred to as the back surface.

  Legs 30 a and 30 b extending in a direction to stand up with respect to the back surface 29 are provided at both side edges of the base body 27. As shown in FIG. 6A, FIG. 8, and the like, when the base body 27 is disposed at the set mounting position on the protruding piece 21, the leg portions 30a and 30b extend along the guide walls 24a and 24b. It becomes an aspect. The width W1 (see FIG. 4) of the base body 27 including these leg portions 30a and 30b is slightly smaller than the interval W2 (see FIG. 9) between the guide walls 24a and 24b provided on the protruding piece 21 to be mounted. The dimensions are very small. Thereby, the base body 27 can move slightly between the guide walls 24a and 24b. Further, the height H1 (see FIG. 4) from the tips of the leg portions 30a and 30b to the reference plane 28 is slightly smaller than the distance D (see FIG. 9) between the protruding piece 21 and the extending portions 25a and 25b. It has become.

  Further, the base body 27 is formed with protruding portions 31a and 31b protruding from the reference surface 28. The projecting portions 31 a and 31 b are formed at positions so that the base 27 is fitted in the positioning holes 23 a and 23 b in the projecting piece 21 when the base body 27 is disposed at the set mounting position in the projecting piece 21. The length L1 (see FIG. 4) in the direction along the side edge of the base body 27 in the protrusions 31a and 31b is shorter than the length L2 in the same direction in the positioning holes 23a and 23b (see FIG. 8). Yes. Further, the widths of the protruding portions 31a and 31b are slightly narrower than the widths of the positioning holes 23a and 23b. Since the protrusions 31a and 31b and the positioning holes 23a and 23b have the dimensional relationship as described above, in the state where the protrusions 31a and 31b are inserted into the positioning holes 23a and 23b, the protrusions 31a and 31b It can move inside the positioning holes 23a, 23b. In other words, the protrusions 31a and 31b are loosely fitted in the positioning holes 23a and 23b.

  Further, the protrusion height H2 (see FIG. 4) of the protrusions 31a and 31b from the substrate surface 28 is a height H3 (H3 = H3 = the height H1 from the tips of the legs 30a and 30b to the reference surface 28). H1 + H2) is slightly larger than the distance D between the protruding piece 21 and the extended portions 25a, 25b.

  As described above, the shape and dimensions related to the protruding piece 21, the guide walls 24 a and 24 b and the extending portions 25 a and 25 b constituting the accommodation space 26, and the shape and dimensions of the plate nut 15 are designed to be associated with each other. The

  The plate-like nut 15 in the second embodiment is mounted in the accommodation space 26 (projecting piece 21) as follows. That is, the plate-like nut 15 is inserted into the accommodation space 26 from the insertion port between the guide walls 24a and 24b. At this time, the side surfaces of the leg portions 30a and 30b in the plate nut 15 are along the guide walls 24a and 24b, the tip portions of the leg portions 30a and 30b are along the extending portions 25a and 25b, and the reference surface 28 is the protruding piece 21. Make sure that they face each other.

  Thereafter, the height H3 is larger than the interval D of the accommodation space 26 from when the projections 31a and 31b of the plate nut 15 are inserted into the accommodation space 26 until the projections 31a and 31b fit into the positioning holes 23a and 23b. Since it is large, the guide walls 24a and 24b and the extending portions 25a and 25b are deformed as follows. That is, the elongated portions 25a and 25b made of a resin material are deformed in a direction to be pushed down by receiving a pressing force from the leg portions 30a and 30b of the plate nut 15, and accordingly, the guide walls 24a and 24b have their distal end sides outward. Deforms in the spreading direction.

  When the protruding portions 31a and 31b of the plate-like nut 15 are fitted into the positioning holes 23a and 23b, the pressing force from the leg portions 30a and 30b to the extending portions 25a and 25b is reduced, and the extending portions 25a and 25b and the guide walls 24a, 24b returns to the original state by the elastic force (restoring force) of the resin material.

  In this way, the plate nut 15 can be mounted in the accommodation space 26. In the second embodiment, when the plate-like nut 15 is disposed at the set mounting position in the accommodation space 26, the protruding portions 31 a and 31 b of the plate-like nut 15 are inserted into the positioning holes 23 a and 23 b of the protruding piece 21. It is in a state where it is fitted and prevented from coming off. However, in the second embodiment, as described above, in such a state, the plate-like nut 15 has a direction perpendicular to the reference surface 28, a direction from the insertion opening side of the accommodation space 26 toward the back side, and It can be displaced in a direction perpendicular to this direction.

  A screw hole 32 is further formed in the base body 27. The screw hole 32 is formed so that the position of the opening is aligned with the opening of the screw insertion hole 22 of the protruding piece 21 when the plate-like nut 15 is mounted at the set mounting position of the protruding piece 21. Has been. On the inner wall surface of the screw hole 32, a screw groove is formed to be screwed with a screw having a size determined by a specification or the like.

  The plate-like nut 15 in the second embodiment is configured as described above. With the plate-like nut 15 mounted in the protruding piece 21 (accommodating space 26), the screw insertion hole 20 of the cover 19 with the opening of the case 18 closed as shown in FIG. The screws are sequentially inserted into the screw insertion holes 22 of the protruding pieces 21 of the case 18. Then, when the screw is screwed into the screw hole 32 of the plate-like nut 15, the case 18 and the cover 19 are fastened by the screw.

  In the second embodiment, as described above, the plate-like nut 15 is housed (held) in the housing space 26 in a state where it can move in the housing space 26. For this reason, even if the formation position of the screw insertion hole 22 of the protruding piece 21 is deviated from the design position, if the deviation amount is a deviation amount by which the plate nut 15 can be displaced, the screw insertion hole 22. The plate nut 15 can be displaced (followed up) so that the position of the screw hole 32 is aligned with the screw hole 32. In such a case, the screw hole 32 and the screw insertion hole 22 can be aligned without being adversely affected by the positional deviation of the screw insertion hole 22. For this reason, the plate-like nut 15 and its mounting structure in the second embodiment are a problem caused by the displacement of the screw insertion hole 22, that is, the screw that has passed through the screw insertion hole 22 due to the displacement. The occurrence of the problem that the screw cannot be screwed to 32 can be suppressed.

  Furthermore, in this 2nd Embodiment, the plate-shaped nut 15 is equipped with the structure hold | maintained in the storage space 26 in the state stopped. For this reason, even if the screw is not screwed into the screw hole 32 of the plate-like nut 15, the problem that the plate-like nut 15 easily comes out of the accommodation space 26 is prevented.

  Incidentally, for example, when a member formed of resin is fastened with a screw, there is a clip-like part 106 as shown in FIG. A screw hole 116 is formed in the clip-shaped component 106. As shown in FIG. 21B, the members 118 and 119 to be fastened are clamped by the parts 106, and the members 118 and 119 and the clip-shaped parts 106 are screwed with screws 120, whereby the members 118 and 119 are It is concluded. Such a component 106 has the following problems. That is, for example, when removing the screw 120 in order to eliminate the fastening of the members 118 and 119 for some reason, the clip-shaped component 106 is detached from the members 118 and 119, for example, falls, and it takes time to search. Troublesome.

  On the other hand, in the second embodiment, the plate-like nut 15 is held in a state of being prevented from coming off in the accommodation space 26, so that the plate-like nut 15 can be obtained even if the screw is not screwed into the screw hole 32. Can be prevented from easily falling out of the storage space 26. For this reason, the trouble of searching for the plate-like nut 15 dropped from the accommodation space 26 can be reduced.

  Furthermore, in this 2nd Embodiment, since the positioning holes 23a and 23b of the protrusion piece 21 are aspects of a through-hole, the plate-shaped nut 15 can be easily removed from the protrusion piece 21 as follows. For example, the operator positions the projections 31a and 31b by pressing the projections 31a and 31b from the outside through the positioning holes 23a and 23b with a finger or a tool while the plate-like nut 15 is attached to the projection piece 21 (the accommodation space 26). The fitting state between the holes 23a and 23b and the protruding portions 31a and 31b is eliminated. And while maintaining the state in which the fitting state is eliminated as described above, the operator applies a force to push the plate nut 15 out of the storage space 26, thereby removing the plate nut 15 from the storage space 26. Can be removed. Thereby, replacement | exchange of the plate-shaped nut 15 becomes easy and the following effects can be acquired. In other words, a component (for example, the insert nut 100 in FIG. 17) embedded and mounted in a member to be mounted cannot be replaced. For this reason, when the part becomes unusable due to reasons such as the screw thread being crushed or the like, there is a situation in which the entire attached member (specifically, for example, the case 18) must be replaced. Arise. On the other hand, the plate-like nut 15 of the second embodiment can be replaced as a single item as described above. Therefore, when the plate-like nut 15 cannot be used, the plate-like nut 15 may be replaced. The situation where the case 18 is replaced can be avoided.

<Third Embodiment>
The third embodiment according to the present invention will be described below. In the description of the third embodiment, the same reference numerals are given to the same name parts as the constituent parts constituting the plate-like nut and the mounting structure of the second embodiment, and the duplicate description of the common parts is omitted.

  FIG. 10 is a three-sided view showing a plate-like nut 15 that is a fastening auxiliary component of the third embodiment. The plate-like nut 15 according to the third embodiment is provided with another screw hole 33 in addition to the same configuration as the plate-like nut 15 of the second embodiment.

  That is, in the plate-like nut 15 in the third embodiment, the base body 27 has a line-symmetric shape with the center line OL shown in FIG. 10 as the center. The base body 27 is formed with two screw holes 32 and 33. The center positions of these screw holes 32 and 33 are on the line of the center line OL, and are mutually symmetrical with respect to the center line OW shown in FIG. The sizes and types of the screw holes 32 and 33 are set according to, for example, specifications. Specifically, for example, the screw hole 32 is configured to correspond to a predetermined type of screw among a plurality of types of screws such as a metric screw, a triangular screw, a trapezoidal screw, and a unified screw. The Another screw hole 33 may be configured to correspond to the same type of screw as the screw hole 32, or may be configured to correspond to a different type of screw from the screw hole 32. Further, the screw holes 32 and 33 may have the same diameter or different diameters.

  The configuration of the plate nut 15 other than that described above is the same as the configuration of the plate nut 15 in the second embodiment. Further, the plate-like nut 15 of the third embodiment is mounted on the protruding piece 21 (the accommodation space 26) to be mounted, as in the second embodiment.

  Since the plate-like nut 15 in the third embodiment has the above-described configuration, the screw hole 32 can be used by being mounted on the protruding piece 21 as shown in FIG. It becomes a state. Further, the plate-like nut 15 is rotated from the state shown in FIG. 11A to the state shown in FIG. 11B, and the plate-like nut 15 in this state is inserted into the accommodating space 26, whereby the plate-like nut is obtained. 15 is in a state where the screw hole 33 can be used. That is, the plate-like nut 15 in the third embodiment is a nut having a spare function when, for example, the screw holes 32 and 33 have the same type and the same diameter. Further, the plate-like nut 15 can function as a dual-purpose nut when, for example, the screw holes 32 and 33 are screw holes corresponding to different diameters or different types of screws.

<Fourth embodiment>
The fourth embodiment according to the present invention will be described below. In the description of the fourth embodiment, the same reference numerals are given to the same names as the component parts constituting the plate-like nut and the mounting structure in the second and third embodiments, and the common parts are duplicated. Is omitted.

  FIG. 12 is a schematic plan view illustrating a plate-like nut that is a fastening auxiliary component of the fourth embodiment. In the plate-like nut 15 of the fourth embodiment, an optional through hole (slit) 40 is formed in the base 27 in addition to the configuration of the second embodiment.

  The plate-like nut 15 in the fourth embodiment is, for example, as an attachment member for attaching an optional member to the cover 19 when the optional member is attached to the cover 19 as shown in FIGS. Is available. FIG. 13A is a perspective view illustrating a mode in which an option member (option cover) 42 is attached to the cover 19 using the plate-like nut 15 in the fourth embodiment. FIG.13 (b) is a front view of the aspect represented by Fig.13 (a). FIG. 14A is a diagram showing the cover 19, the optional member 42, and the plate-like nut 15 shown in FIG. 13A in an exploded state. FIG. 14B is a view for explaining the mounting operation of the cover 19, the option member 42 and the plate nut 15.

  That is, in the example shown in FIG. 13A and the like, a nut mounting portion (not shown) to which the plate-like nut 15 is fitted and fixed is formed on the side edge portion of the cover 19. The nut mounting portion has a size and a shape in which the plate-like nut 15 is fitted and fixed (held) with the through-hole 40 protruding outside. The option member 42 is formed with a hooking projection 43 (see FIG. 13B) that fits into the through hole 40 of the plate-like nut 15.

  In the case where the cover 19, the option member 42, and the plate nut 15 have the above-described configuration, the option member 42 is fixed to the cover 19 using the plate nut 15 as follows. That is, as shown in FIG. 14B, the attachment claw portion 44 formed on the option member 42 is engaged with the option engagement portion 45 provided on the cover 19, whereby the cover 19 is optional. The member 42 is simply attached. Thereafter, the plate nut 15 is inserted and fixed in the nut mounting portion of the cover 19, and the hooking convex portion 43 of the option member 42 is fitted into the through hole 40 of the plate nut 15. By such an operation, the option member 42 can be easily fixed to the cover 19.

  Since the plate-like nut 15 in the fourth embodiment is formed with an optional through hole 40, in addition to the function as a component used for screw fastening, the plate-like nut 15 is further attached as a mounting component by a technique other than screw fastening. It is also possible to have the functions of

  Further, when the optional member (optional cover) 42 is attached to the cover 19, the cover 19 and the protruding piece 21 of the case 18 may not be screwed together. In such a case, if the plate-like nut 15 is mounted on the protruding piece 21 of the case 18, the screw hole 32 of the plate-like nut 15 may be clogged due to dust or the like. It is assumed that the plate nut 15 cannot be used. On the other hand, by using the plate-like nut 15 for attaching the option cover 42, the plate-like nut 15 can be held on the cover 19 while preventing the screw hole 32 from being clogged. As a result, when the option member 42 is removed and the cover 19 and the case 18 need to be screwed together, the plate-like nut 15 used for attaching the option member 42 is reattached to the projecting piece 21 and clogged. Therefore, the plate-like nut 15 can be used for screw fastening.

<Other embodiments>
In addition, this invention is not limited to the 1st-4th embodiment, Various embodiments can be taken. For example, in the second to fourth embodiments, the guide walls 24a and 24b and the extending portions 25a and 25b forming the accommodation space 26 in which the plate-like nut 15 is accommodated are formed of an elastic resin material. . Thereby, when the plate-like nut 15 is inserted into the accommodation space 26, it can enter the accommodation space 26 while deforming the guide walls 24a, 24b and the extending portions 25a, 25b. Instead of this, the protruding piece 21, the guide walls 24a and 24b, and the extending portions 25a and 25b may be formed of metal. In this case, since the guide walls 24a and 24b and the extending portions 25a and 25b are not easily deformed, for example, an elastic body 46 as shown in FIG. 15A is disposed in the extending portions 25a and 25b. FIG. 15A is a perspective view showing the elastic body 46 together with the protruding piece 21 and the like. FIG. 15B is a diagram illustrating a state in which the plate nut 15 is removed from the accommodation space 26 in which the elastic body 46 is disposed. FIG. 16A is a front view illustrating a state in which the plate nut 15 is accommodated in the accommodation space 26 in which the elastic body 46 is disposed. FIG. 16B is a schematic perspective view illustrating the aspect of FIG.

  The elastic body 46 is deformed in the compressing direction by the pressing force from the leg portions 30a and 30b when the plate-like nut 15 is inserted into the accommodating space 26, and widens the space between the protruding piece 21 and the plate-like nut 15. The structure which can be made to advance to the accommodation space 26 is provided. In addition, the elastic body 46 prevents the protrusions 31a and 31b from coming into the positioning holes 23a and 23b by elastic force when the protrusions 31a and 31b of the plate nut 15 are fitted in the positioning holes 23a and 23b of the protrusion 21. The structure which maintains the state fitted by the state is provided.

  By using such an elastic body 46, even when the guide walls 24a, 24b and the extending portions 25a, 25b are formed of metal, the plate-like nut 15 is mounted in the same manner as in the second to fourth embodiments. The structure can be attached to a member to be attached.

  Moreover, in the 2nd-4th embodiment, the fastening part which attaches the plate-shaped nut 15 has shown the example which is one place. On the other hand, in the case of a device having a plurality of screw fastening portions, all of these fastening portions or a plurality of selected locations use the same plate-like nut 15 and its mounting structure as in the second to fourth embodiments. It may be a fastening structure.

  Furthermore, in 4th Embodiment, the through-hole (slit) 40 is formed in the plate-shaped nut 15 as an option. Instead of the through-hole 40, the plate-like nut 15 may be formed with a recess or a notch. The shape of the optional through hole, recess, or notch formed in the plate-like nut 15 is set according to the shape of the member that uses the through hole, recess, or notch.

DESCRIPTION OF SYMBOLS 1 Fastening auxiliary component 2,27 Base body 3,28 Reference surface 4,32,33 Screw hole 5,31 Projection part 8,22 Screw insertion hole 10,23 Positioning hole 15 Plate-shaped nut 26 Accommodating space 46 Elastic body

Claims (6)

A plate-like base having a reference surface facing a formation region of a screw insertion hole formed in a member to be mounted; the base is inserted into the screw insertion hole in the member to be mounted; The fastening auxiliary component in which a screw hole into which a screw is screwed and a protruding portion that protrudes from the reference surface and loosely fits in a positioning hole formed in the member to be mounted is mounted. The member to be mounted has a base portion facing the reference surface of the base body of the fastening auxiliary component,
Wherein the base portion, the threaded hole of the positioning holes, the fastening auxiliary parts in a state where the projecting portion of the fastening auxiliary component to the positioning hole is loosely fitted to the projecting portion of the fastening auxiliary component is loosely fitted It said holes for screw insertion with an opening facing the opening portion is formed,
Further, wall portions disposed on both sides of the fastening auxiliary component, which are located at a mounting position where the protruding portion of the fastening auxiliary component is loosely fitted in the positioning hole, protrude from the base, and the wall An extension portion is extended along the surface opposite to the reference surface of the fastening auxiliary component, and the fastening auxiliary component is accommodated by the base portion, the wall portion, and the extension portion. An accommodation space is formed, and the accommodation space holds the fastening auxiliary component in a state in which the fastening auxiliary component is displaceable while maintaining the state in which the protruding portion of the fastening auxiliary component is loosely fitted in the positioning hole. Has a size that can
Further, one or both of a configuration in which the wall portion is formed of an elastic material and a configuration in which an elastic body that is elastically deformed is disposed in at least one of the base portion and the extension portion. It is possible to widen a gap in which the fastening auxiliary part fits between the base part and the extension part by elastic deformation of one or both of the wall part and the elastic body,
The screw insertion of the attachment target member is performed in a state where the fastening auxiliary component is accommodated in the accommodation space and the protruding portion of the fastening auxiliary component is loosely fitted in the positioning hole in the attachment target member. A fastening auxiliary component mounting structure in which the fastening auxiliary component is mounted on the mounting target member by screwing the screw inserted into the through hole into the screw hole of the fastening auxiliary component. When the surface of the reference surface of the base body, on both sides of the substrate, mounting structure of fastening the auxiliary part according to claim 1, leg extending in a direction to protrude from the rear surface of the substrate is formed . The fastening auxiliary component mounting structure according to claim 1, wherein another screw hole is formed in the base. The mounting structure for a fastening auxiliary component according to claim 1, wherein an optional through hole, a concave portion, or a notch is further formed in the base body. 請 Motomeko 1 device comprising a mounting structure of any one of the fastening auxiliary component according to claim 4. A plate-like base having a reference surface facing a formation region of a screw insertion hole formed in a member to be mounted; the base is inserted into the screw insertion hole in the member to be mounted; The fastening auxiliary component in which a screw hole into which a screw is screwed and a protruding portion that protrudes from the reference surface and loosely fits in a positioning hole formed in the member to be mounted is mounted. The member to be mounted has a base portion facing the reference surface of the base body of the fastening auxiliary component,
The positioning hole in which the protruding portion of the fastening auxiliary component is loosely fitted in the base portion, and the screw hole of the fastening auxiliary component in a state where the protruding portion of the fastening auxiliary component is loosely fitted in the positioning hole. And the screw insertion hole having an opening facing the opening of
Further, wall portions disposed on both sides of the fastening auxiliary component, which are located at a mounting position where the protruding portion of the fastening auxiliary component is loosely fitted in the positioning hole, protrude from the base, and the wall An extension portion is extended along the surface opposite to the reference surface of the fastening auxiliary component, and the fastening auxiliary component is accommodated by the base portion, the wall portion, and the extension portion. An accommodation space is formed, and the accommodation space holds the fastening auxiliary component in a state in which the fastening auxiliary component is displaceable while maintaining the state in which the protruding portion of the fastening auxiliary component is loosely fitted in the positioning hole. Has a size that can
Further, one or both of a configuration in which the wall portion is formed of an elastic material and a configuration in which an elastic body that is elastically deformed is disposed in at least one of the base portion and the extension portion. The fastening assisting part is capable of expanding a gap in which the fastening assisting part is fitted between the base part and the extension part by elastic deformation of one or both of the wall part and the elastic body. When mounting the fastening auxiliary component on the mounting structure,
Accommodating the fastening auxiliary component in the housing space, loosely fitting the protrusion of the fastening auxiliary component into the positioning hole in the member to be mounted;
In this state, the fastening auxiliary component is mounted on the mounting target member by screwing the screw inserted through the screw insertion hole of the mounting target member and the screw hole of the fastening auxiliary component. Mounting method for fastening auxiliary parts.

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