JP2016011693A - Structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structure which is excellent in the accuracy of a position of an insert nut part in the structure, and does not need to fix (attach) the insert nut part to the structure.SOLUTION: This structure has an insert nut part into which a nut member can be inserted, and can be compounded with a fastened member with a bolt and a nut. The insert nut part has: a fastening face which is fastened with the fastened member; a bolt insertion hole which extends inward from the fastening face; a nut insertion hole which extends sideways from a sidewall of the bolt insertion hole, and has an opening part for inserting the nut member therein; and a nut fixing part which is arranged at a cross point between the bolt insertion hole and the nut insertion hole. The nut fixing part is formed so that the nut fixing part can fix the nut member in a state that the nut member can be engaged with the bolt which is inserted into the bolt insertion hole, and in a state that the nut member is prevented from turning in circumferential direction.

Description

  The present invention relates to a structure. Specifically, the present invention relates to a structure provided with an insert nut portion into which a nut member can be inserted later.

  Bolts and screws may be used for fixing (fixing, connecting, connecting, and combining) members. When fixing members, a member having a female screw shape is used for one member, and bolts and nuts are often fastened and fixed. As a method of forming a female screw shape on a member, a method of attaching an insert nut to the member is known (for example, Patent Documents 1 to 3).

Japanese Patent Laid-Open No. 2004-21778 JP 2010-48308 A JP 2005-180511 A

  In Patent Document 1, an insert nut is mechanically driven into a prepared hole, and the insert nut is fixed to a table member. However, there have been cases where the accuracy (accuracy) of the position of the insert nut portion in the member is insufficient due to a shift at the time of driving or a movement of the insert nut at the time of fastening the bolt. Moreover, the operation | work which fixes an insert nut part to a member was attached | subjected.

  In Patent Document 2, the insert nut is heated to a high temperature, press-fitted into a resin member, and the molten resin and the insert nut are thermally welded and fixed. However, since the insert nut is made of a material that does not deform even at a high temperature such as metal, it may be difficult to perform fine processing, or it may be difficult to press-fit into a thin member because the resin of the member is melted by heating. Furthermore, the operation | work which fixes an insert nut part to a member was attached | subjected.

  In Patent Document 3, resin is injected around an insert nut to insert-mold a member. However, even in this method, after forming the insert nut, it is necessary to further fix (attach) the member to the member. In addition, the insert nut portion is made of a material resistant to heat such as metal, and fine processing may be difficult.

  Particularly in recent years, the base material and the like have been reduced in size and thickness, and it has been required to arrange the bolts and nuts with higher accuracy and accuracy.

  Accordingly, an object of the present invention is to provide a structure that is excellent in the accuracy of the position of the insert nut portion in the structure and that does not require (insert) the insert nut portion to the structure.

  Therefore, as a result of earnest studies to achieve the above object, the present inventor has inserted a nut member and provided an insert nut portion having a nut insertion hole capable of fixing the inserted nut member, so that the position of the insert nut portion can be determined. The present invention has been completed by finding that it is excellent in accuracy and it is not necessary to fix (mount) the insert nut portion to the structure.

  That is, the present invention is a structure in which an insert nut portion into which a nut member can be inserted is provided and can be combined with a fastened member by a bolt and a nut member, and the insert nut portion is a fastening surface with the fastened member. A bolt insertion hole extending inward from the fastening surface, a nut insertion hole extending laterally from a side wall of the bolt insertion hole and having an opening for inserting a nut member, the bolt insertion hole, and the above A nut fixing portion provided at an intersection with the nut insertion hole, wherein the nut fixing portion is capable of screwing the nut member with a bolt inserted into the bolt insertion hole, and in the circumferential direction. Provided is a structure that is formed so as to be fixed in a state in which the rotation is prevented.

  The structure is preferably a structure formed by a three-dimensional modeling method.

  It is preferable that the structure is a structure in which a nut member is fixed to the nut fixing portion.

  Furthermore, the present invention is a composite structure in which the structure and a fastening member having a bolt hole are combined, wherein the bolt passed through the bolt hole and the bolt insertion hole in this order; Provided is a composite structure in which a nut member fixed to a nut fixing portion is combined.

  Furthermore, this invention provides the manufacturing method of the structure which forms the said structure by a three-dimensional modeling method.

  Since the structure of the present invention has the above-described configuration, it is excellent in the accuracy of the position of the insert nut portion, and it is not necessary to fix (mount) the insert nut portion. Therefore, it is possible to easily produce an insert nut portion having excellent position accuracy.

FIG. 1 is a schematic view (perspective view) showing an example of the structure of the present invention. FIG. 2 is a schematic view (an enlarged view and a perspective view of FIG. 1) showing an example of an insert nut portion of the structure of the present invention. FIG. 3 is a schematic view (perspective view) showing an example of the insert nut portion. FIG. 4 is a schematic view (perspective view) showing an example of the insert nut portion. FIG. 5 is a schematic diagram (plan view) showing an example of a fastening surface (upper end surface, plane) of the insert nut portion. FIG. 6 is a schematic diagram (plan view) showing an example of a fastening surface (upper end surface, plane) of the insert nut portion. FIG. 7 is a schematic diagram (plan view) illustrating an example of a fastening surface (upper end surface, plane) of the insert nut portion. FIG. 8 is a schematic diagram (plan view) illustrating an example of a fastening surface (upper end surface, plane) of the insert nut portion. FIG. 9 is a schematic diagram (plan view) showing an example of a fastening surface (upper end surface, plane) of the insert nut portion. FIG. 10 is a schematic diagram (plan view) illustrating an example of a fastening surface (upper end surface, plane) of the insert nut portion. FIG. 11 is a schematic diagram (cross-sectional view) illustrating an example of the XX cross-sectional view in FIG. 3. 12 is a schematic diagram (cross-sectional view) illustrating an example of the XX cross-sectional view in FIG. 3. FIG. 13 is a schematic diagram (cross-sectional view) illustrating an example of the XX cross-sectional view in FIG. 3. FIG. 14 is a schematic diagram illustrating an example of a cross-sectional view in the height direction of the nut insertion hole. FIG. 15 is a schematic diagram (cross-sectional view) illustrating an example of the XX cross-sectional view in FIG. 4. FIG. 16 is a schematic diagram (cross-sectional view) illustrating an example of the XX cross-sectional view in FIG. 4. FIG. 17 is a schematic diagram (cross-sectional view) showing an example in which a nut is fixed to the nut fixing portion of FIG. 18 is a schematic view (cross-sectional view) showing an example in which a nut is fixed to the nut fixing portion of FIG. FIG. 19 is a schematic view (cross-sectional view) showing an example in which a nut is fixed to the nut fixing portion of FIG. 20 is a schematic diagram (cross-sectional view) illustrating an example of a YY cross-sectional view in FIG. 3. 21 is a schematic diagram (cross-sectional view) illustrating an example of a YY cross-sectional view in FIG. 3. 22 is a schematic diagram (cross-sectional view) illustrating an example of a YY cross-sectional view in FIG. 3. 23 is a schematic diagram (cross-sectional view) illustrating an example of a YY cross-sectional view in FIG. 3. 24 is a schematic diagram (cross-sectional view) illustrating an example of a YY cross-sectional view in FIG. 3. 25 is a schematic diagram (cross-sectional view) illustrating an example of a YY cross-sectional view in FIG. 3. 26 is a schematic diagram (cross-sectional view) illustrating an example of a YY cross-sectional view in FIG. 3. FIG. 27 is a schematic view (cross-sectional view) showing an example of a composite structure in which the structure of the present invention and the fastened member are combined with bolts and nut members. FIG. 28 is a schematic view (cross-sectional view) showing an example of a composite structure in which the structure of the present invention and the fastened member are combined with bolts and nut members. FIG. 29 is a schematic view (cross-sectional view) showing an example of a composite structure in which the structure of the present invention and the fastened member are combined with bolts and nut members. FIG. 30 is a schematic view (cross-sectional view) showing an example of a composite structure in which the structure of the present invention and the fastened member are combined with bolts and nut members. FIG. 31 is a schematic diagram (perspective view) showing an example of a nut member. FIG. 32 is a schematic diagram (perspective view) showing an example of the insert nut portion. FIG. 33 is a schematic view (perspective view) showing an example of inserting a nut member into the insert nut portion. FIG. 34 is a schematic view (perspective view) showing an example of fixing the nut member to the nut fixing portion. FIG. 35 is a schematic view (perspective view) showing an example of fixing the nut member to the nut fixing portion. FIG. 36 is a schematic view (perspective view) showing an example of fixing the nut member to the nut fixing portion. FIG. 37 is a schematic view (perspective view) showing an example of the structure of the present invention. FIG. 38 is a schematic view (perspective view) showing an example of a member to be fastened. FIG. 39 is a schematic view (perspective view) showing an example in which the structure of the present invention and the member to be fastened are combined. FIG. 40 is a schematic view (perspective view) showing an example in which the structure of the present invention and the member to be fastened are combined. FIG. 41 is a schematic view (perspective view) showing an example in which the structure of the present invention and the member to be fastened are combined.

[Structure]
The structure of the present invention is provided with at least an insert nut portion into which a nut member can be inserted. That is, the structure of the present invention is provided with at least an insert nut portion into which the nut member can be inserted later.
In the structure of the present invention, a bolt hole (a hole into which a bolt can be inserted) is formed at a position corresponding to (facing) the insert nut portion by fastening a bolt (male screw) and a nut member (a member having a female screw structure). It can be combined with the member to be fastened to form a composite structure. That is, the structure of the present invention is a structure that can be combined with the member to be fastened by the bolt and the nut member.

In this specification, the height direction, the width direction, and the depth direction of the insert nut portion refer to the directions shown in FIGS. The width direction refers to the width direction of a surface provided with a nut insertion hole (a front surface of the insert nut portion, or a surface having an insertion hole closest to the upper end surface of the insert nut portion when there are a plurality of insertion holes).
In the present specification, the sectional view in the height direction refers to a cut surface perpendicular to the height direction (for example, the XX section in FIGS. 3 and 4). The same applies to the cross-sectional view in the width direction (for example, the YY cross-section in FIG. 3) and the cross-sectional view in the depth direction.

  In this specification, the insert nut portion does not have a female screw structure before the nut member is inserted, but has a female screw structure by inserting (fixing) the nut member (by inserting (fixing) the nut member later). The part given.

{Insert nut part}
The insert nut portion includes at least one fastening surface with the member to be fastened (upper end surface of the insert nut portion, a flat surface, an upper end surface in the height direction, an insert nut portion fastening surface), and extends inwardly from the fastening surface to the insert nut portion. The bolt insertion hole has a nut insertion hole that extends laterally from the side wall of the bolt insertion hole and has an opening for inserting a nut member. The bolt insertion hole and the nut insertion hole have a portion intersecting inside the insert nut portion. That is, the bolt insertion hole and the nut insertion hole communicate with each other inside the insert nut portion. The insert nut portion further includes a nut fixing portion at an intersection (communication portion) between the bolt insertion hole and the nut insertion hole.

  For example, as shown in FIGS. 3, 4, and 20, the insert nut portion 2 has a bolt insertion hole 7 that extends inward from the fastening surface 3 (upper end surface of the insert nut portion), and inserts a bolt. It has a nut insertion hole 9 that extends laterally from the side wall of the hole and has an opening (nut insertion port) 10 for inserting a nut member. The opening 10 of the nut insertion hole 9 is preferably provided on the front surface of the insert nut portion (a surface in the width direction, an end surface in the depth direction) 4.

The fastening surface is not particularly limited, but may be flat or uneven on the surface. When combined with the member to be fastened, there is no gap, and from the viewpoint that the structure of the present invention and the member to be fastened can be more firmly fixed, the portion corresponding to the above-mentioned insert nut portion of the member to be fastened and the gap (For example, both the fastening surface of the structure of the present invention and the facing surface of the member to be fastened are both flat (FIG. 27), jagged (screw-like) (FIG. 29), A shape in which one has a concave portion and the other has a corresponding convex portion is preferable, and a flat shape is more preferable.
The fastening surface may be a surface that faces the surface of the fastened member when the bolt inserted into the bolt insertion hole and the nut member fixed to the nut fixing portion are fastened and combined with the fastened member. It does not have to be in contact with the member to be fastened.

  Although the shape of the said fastening surface is not specifically limited, For example, circular shape (circle (FIGS. 4 and 6) semicircle, ellipse, semi-ellipse (FIG. 5), etc.), polygonal shape (triangle shape, square shape (FIG. 3, 7-10), a pentagonal shape, a hexagonal shape, etc.), a combination thereof, a shape obtained by cutting out a part of these, and the like.

(Bolt insertion hole)
The bolt insertion hole is a hole through which the bolt is inserted into the insert nut portion when the structure of the present invention and the member to be fastened are combined (fixed, fastened, combined, combined). The bolt insertion hole is provided inward from the fastening surface from the viewpoint of easy insertion of a bolt.

The shape of the bolt insertion hole (the shape on the fastening surface (insert nut upper end surface) or the shape of each cross section in the height direction) is not particularly limited as long as it has a size that allows the bolt to pass through. For example, a circular shape (semicircle, ellipse, semi-ellipse, etc.) (FIGS. 3 to 7), a polygonal shape (triangle shape, quadrangular shape, pentagonal shape, hexagonal shape, etc.) (FIGS. 8 and 9), combinations thereof, and the like can be given. It is done. Further, the bolt insertion hole may not be a hole inside the fastening surface, and for example, a part cut out in a form extending inward from the outer periphery of the fastening surface may be used as the bolt insertion hole. Among these, a circular shape is preferable from the viewpoint of ease of production. There may be one bolt insertion hole or two or more (FIG. 10). When two or more bolt insertion holes are provided, the shape of each bolt insertion hole may be the same or different.
The shape of the bolt insertion hole may be the same in any cross section in the height direction (any cross section of the portion excluding the nut insertion hole portion in the height direction) (FIGS. 20, 21, 23, 25) may be different (FIGS. 22 and 24). For example, when a drill screw or wood screw is used as the bolt, the bolt insertion hole may be smaller than the outer diameter of the drill screw (FIGS. 24 and 28).

  The size of the bolt insertion hole on the fastening surface is not particularly limited, but from the viewpoint that the contact area becomes large when the structure of the present invention and the member to be fastened are combined and can be fixed more firmly. The total surface area is preferably 1 to 70%, more preferably 10 to 50%, still more preferably 20 to 40%, and particularly preferably 25 to 35%.

The size of the bolt insertion hole in the fastening surface and / or the sectional view in the height direction is not particularly limited, but the viewpoint that the bolt can be easily inserted and the bolt after insertion (after fixing) is difficult to move. For example, the diameter of the largest circle that can be drawn inside the bolt insertion hole (for example, the diameter of the circular bolt insertion hole in FIGS. 5 to 7, the largest circle 8 that can be drawn inside the star-shaped bolt insertion hole in FIG. 9). Is preferably 100.0 to 115.0%, more preferably 100.5 to 110.0%, still more preferably 101.0 to 105 with respect to the outer diameter of the bolt to be inserted. 0.0%. The diameter of the maximum circle drawn inside the bolt insertion hole is not particularly limited, but is preferably 0.01 to 1.00 mm larger than the outer diameter of the bolt to be inserted, and 0.05 to 0.20 mm larger. It is more preferable.
In addition, when using a drill screw, a wood screw, etc. as a volt | bolt, the said bolt insertion hole may be smaller than the outer diameter of a drill screw (FIG. 24).

  The height of the bolt insertion hole is not particularly limited, but may be penetrated in the height direction (FIG. 23) or may not be penetrated (FIG. 20).

  The bolt insertion hole may be provided in the vertical direction with respect to the upper end surface of the insert nut portion (FIG. 20) or may not be in the vertical direction (FIG. 26).

(Nut insertion hole)
The nut insertion hole is a hole extending laterally from the side wall of the bolt insertion hole and having an opening for inserting a nut member (FIGS. 11 and 20). The bolt insertion hole and the nut insertion hole have a crossing portion inside the insert nut portion. That is, the nut insertion hole communicates with the bolt insertion hole.
The nut insertion hole has a nut fixing portion at the intersection of the bolt insertion hole and the nut insertion hole. The nut fixing portion is formed so that the inserted nut member can be fixed in a state where it can be screwed (fastened) with a bolt inserted into the bolt insertion hole and in a state where rotation in the circumferential direction is prevented. Has been.
In the insert nut portion, the nut member is inserted into the nut insertion hole from the opening, and is fixed to the nut fixing portion in a state where it can be screwed with the bolt inserted into the bolt insertion hole.
In the present specification, the opening of the nut insertion hole may be referred to as a “nut insertion port”.

  The nut insertion hole has at least a nut fixing portion at an intersection between the nut insertion hole and the bolt insertion hole (an opening for inserting a nut member) and the bolt insertion hole (FIGS. 11 and 20). For example, as shown in FIGS. 11 and 20, the nut insertion hole preferably has an opening 10 on the front surface 4 of the insert nut portion 2 and is provided with a nut fixing portion 13 in communication with the opening 10. . The nut insertion part and the nut fixing part may be separated or connected. The shape and distance between the opening and the nut fixing portion are not particularly limited.

  The nut insertion hole only needs to be able to fix the inserted nut member in a state where it can be screwed with the bolt inserted into the bolt insertion hole. The shape of the opening and the nut fixing portion (cross-sectional shape in the width direction, FIG. 3 (Y-Y cross-sectional shape) may be different (FIG. 25).

  The shape of the opening on the front face of the insert nut portion is not particularly limited as long as a nut member (for example, a triangular nut, a square nut, a hexagon nut, etc.) can be inserted.

  The width of the opening on the front face of the insert nut portion is wider than the width of the nut member (for example, the facing distance or diagonal distance of the nut member, particularly the facing distance of the nut member) from the viewpoint of ease of inserting the nut member. Is preferred. In addition, when the said insert nut part is resin, since it is also possible to expand an opening part at the time of nut member insertion, the width | variety of an opening part may be narrower than the width | variety of a nut member. Specifically, the width of the opening (the width 11 of the opening in FIGS. 17 to 19) is the width of the nut member (for example, the facing distance 17 of the nut member 16 in FIG. 17 and the diagonal of the nut member 16 in FIG. 18). The distance 18 or the facing distance 17)) of the nut member 16 in FIG. 19 may be 95.0 to 110.0%, preferably 99.0 to 109.0%, more preferably 100. It is 0-108.0%, More preferably, it is 100.1-107.0%, More preferably, it is 100.5-105.0%, Most preferably, it is 101.0-103.0%.

  The height of the opening in front of the insert nut portion is preferably higher than the height of the nut member from the viewpoint of easy insertion of the nut member. In addition, when the said insert nut part is resin, since an opening part can also be expanded when inserting a nut member, the height of an opening part may be lower than the height of a nut member. Specifically, the height of the opening is 95.0 with respect to the height of the nut member (for example, the height 12 of the opening in FIGS. 20 and 27 is with respect to the height 19 of the nut member). To 110.0%, preferably 99.0 to 109.0%, more preferably 100.0 to 108.0%, still more preferably 100.1 to 107.0%, and even more preferably 100. .5 to 105.0%, particularly preferably 101.0 to 103.0%.

In the nut fixing portion, the nut member inserted into the nut insertion hole can be screwed (fastened) with the bolt inserted into the bolt insertion hole, and the rotation in the circumferential direction is prevented. It is formed so that it can be fixed (FIGS. 27 to 30). For example, the nut fixing portion fixes the nut member such that the upper end surface (the top surface or the seating surface of the nut member) is perpendicular to the insertion direction of the bolt inserted from the bolt insertion hole. It is preferable that it is a part which can be performed (FIGS. 27-30).
The nut fixing portion is provided at an intersecting portion inside the insert nut portion, can be screwed (fastened) with a bolt inserted into the bolt insertion hole, and is prevented from rotating in the circumferential direction. For example, the nut may be fixed in a state where the entire nut cannot be stored inside the insert nut portion (the nut may be in a state where a part of the nut protrudes from the insert nut portion). May be fixed).

In the nut fixing portion, the rotation of the nut member in the circumferential direction is hindered. If the shape of the nut fixing portion (the shape of the cross section in the height direction) is a shape corresponding to a nut member (for example, a triangular nut, a square nut, a polygonal nut such as a hexagon nut, a rectangular parallelepiped nut member, etc.) For example, when using a hexagon nut, it is preferable to have a shape corresponding to the hexagon nut (FIGS. 11 to 16), and when using a rectangular nut member, the shape corresponding to the rectangular nut member is used. It is preferable to have (FIGS. 31, 32, and 33). The shape corresponding to the nut member increases the contact area between the nut member and the wall surface of the insertion hole from the viewpoint of the stability of the nut member (for example, 51% or more (preferably 60% or more of the surface area of the side surface of the nut member). ) Is a shape that contacts). Specifically, for example, in the case of a hexagonal nut, a shape having four sides of a hexagonal nut rather than a shape having three sides of the hexagonal nut (a shape in which about 50% of the surface area of the nut member side surface is in contact) (see FIGS. The shape in which about 67% of the surface area of the side surface of the nut member contacts is preferable (FIGS. 11, 12, 14, 15, 16, 17, and 19).
In the present specification, the circumferential direction of the nut member refers to the direction in which the nut member rotates in a plane parallel to the top surface or the seating surface of the nut member (when the nut member is tightened or loosened, the nut member is rotated). Direction).

  The nut fixing portion is not particularly limited as long as it is a shape that can fix the inserted nut member (in particular, a shape that can fix the nut member inside the insert nut portion), and may be penetrated, for example (see FIG. 1, 2, 16).

The width of the nut fixing portion (the width 11 of the nut fixing portion in FIGS. 17 to 19) is not particularly limited, but the viewpoint that the nut member can be inserted and the nut member can be firmly fixed without using an adhesive or the like. Therefore, it is preferable that the width of the nut member (for example, the facing distance or diagonal distance of the nut, particularly the facing distance of the nut) is slightly larger (there is play). For example, the width 11 of the nut fixing portion in FIG. 17 is slightly larger than the facing distance 17 of the nut member 16, and the width 11 of the nut fixing portion in FIG. 18 is slightly larger than the diagonal distance 18 of the nut member 16. In FIG. 19, the width 11 of the nut fixing portion is preferably slightly larger than the facing distance 17 of the nut member 16. In addition, when the said insert nut part is resin, since it is also possible to push and spread a nut fixing part at the time of nut member insertion, the width | variety of a nut fixing part may be narrower than the width | variety of a nut member. Specifically, the difference between the facing distance or diagonal distance of the nut member (particularly the facing distance of the nut member) and the distance in the width direction of the nut fixing portion is preferably 0.01 to 1.00 mm. Preferably it is 0.05-0.20 mm.
The width of the nut fixing portion is not particularly limited. For example, the width of the nut fixing portion is 95.0 to 110.10 with respect to the width of the nut member (for example, the facing distance or diagonal distance of the nut member, particularly the facing distance of the nut member). It may be 0%, preferably 99.0 to 109.0%, more preferably 100.0 to 108.0%, still more preferably 100.1 to 107.0%, and still more preferably 100.5 to 105.0%, particularly preferably 101.0 to 103.0%.

The height of the nut fixing portion is not particularly limited, but is slightly larger than the height of the nut member to be inserted from the viewpoint that the nut member can be inserted and the nut member can be firmly fixed without using an adhesive or the like. It is preferable that there is play. For example, in FIG. 27, the height 12 of the nut fixing portion is preferably slightly larger than the height 19 of the nut 16. Specifically, the difference between the height of the nut member and the height of the nut fixing portion is preferably 0.01 to 1.00 mm, and more preferably 0.05 to 0.20 mm.
Further, the height of the nut fixing portion is not particularly limited. For example, the height of the nut fixing portion may be 95.0 to 110.0%, preferably 99.0 to 109.0. %, More preferably 100.0 to 108.0%, further preferably 100.1 to 107.0%, more preferably 100.5 to 105.0%, particularly preferably 101.0 to 103.0%. is there.

  The shortest distance between the fastening surface and the nut fixing portion (for example, the shortest distance 14 between the fastening surface 3 and the upper end of the nut fixing portion in FIG. 20, the shortest distance 14 between the fastening surface 3 and the upper end of the nut fixing portion in FIG. 26). Although it is not specifically limited, From a viewpoint of intensity | strength, it is preferable that it is 5-50 mm, for example, More preferably, it is 10 mm or more, More preferably, it is 15 mm or more. In addition, when the bolt insertion hole has penetrated (FIG. 23), it is preferable that the shortest distance of the both end surfaces (upper end surface and lower end surface) of an insert nut part and the said nut fixing | fixed part is the said range.

  Further, from the viewpoint of strength, the longest distance between the fastening surface and the nut fixing portion (for example, the longest distance 15 between the fastening surface 3 and the nut fixing portion in FIG. 20, and the fastening surface 3 and the nut fixing portion in FIG. 26). The ratio of the shortest distance between the fastening surface and the nut fixing portion to the longest distance 15) (the shortest distance between the fastening surface and the nut fixing portion / the longest distance between the fastening surface and the nut fixing portion) is, for example, 10 % Or more (10 to 99%), more preferably 20% or more.

  Ratio of the width of the opening or the width of the nut fixing portion (for example, the width 11 of the opening or the width 11 of the nut fixing portion with respect to the width 6 of the insert nut portion in FIGS. 17 to 19) with respect to the width of the insert nut portion. (The width of the opening or the width of the nut fixing portion / the width of the insert nut portion) is not particularly limited, but the insert nut portion is less likely to be damaged when the bolt and the nut are fastened, and the strength is improved. 90% or less (for example, 1-90%) is preferable, More preferably, it is 10-80%, More preferably, it is 20-70%.

  The difference between the width of the insert nut portion and the width of the opening or the width of the nut fixing portion (for example, the width 6 of the insert nut portion in FIGS. 17 to 19 and the width 11 of the opening portion or the nut fixing portion). The difference in width 11) is not particularly limited, but is preferably 1 to 100 mm, and more preferably 5 to 80 mm, from the viewpoint of strength.

  The ratio of the depth of the insertion hole to the depth of the insert nut portion (depth of the insertion hole / depth of the insert nut portion) is that when the bolt and nut are fastened, the insert nut portion is less likely to be damaged and the strength is improved. From a viewpoint, 90% or less (for example, 1-90%) is preferable, More preferably, it is 10-80%, More preferably, it is 20-70%.

  The insert nut portion only needs to have a structure capable of screwing (fastening) the nut member and the bolt with a desired strength. For example, a hole other than the bolt insertion hole and the nut insertion hole (gap, cavity) , Network structure, etc.). Moreover, this hole may be connected (communication) with the said bolt insertion hole and the said nut insertion hole.

  The insert nut portion may be entirely formed of the same material or may be formed of different materials. Especially, it is preferable that the whole said insert nut part is formed from the same raw material from a viewpoint of manufacturing cost and manufacturing time.

  Although the material which comprises the said insert nut part is not specifically limited, For example, a thermoplastic resin, curable resin (a photocurable resin, a thermosetting resin, etc.), a metal, etc. are mentioned. Among them, a thermoplastic resin is preferable from the viewpoints of excellent strength, easy handling, and recycling, which can reduce waste, is environmentally friendly, is easy to process, and has excellent accuracy of the position of the insert nut portion. The thermoplastic resin is not particularly limited. For example, acrylonitrile-butadiene-styrene (ABS) copolymer, polycarbonate, polysulfone, polyethersulfone, polyphenylsulfone, polyetherimide, polystyrene, polyamide-based resin (amorphous polyamide) Etc.), polyolefin resins (eg, polyethylene, polypropylene, etc.), polyvinyl chloride, polyvinyl acetate, polytetrafluoroethylene, acrylonitrile-styrene (AS) copolymers, acrylic resins (eg, polymethyl methacrylate resin, etc.), Modifications such as ABS-M30 copolymers, and resins such as mixtures thereof. Among these, a material containing polycarbonate is preferable from the viewpoint of being strong against impact and having a strength capable of withstanding screw fastening.

  The melting point of the thermoplastic resin is not particularly limited, but is preferably 80 ° C. or higher, more preferably 95 ° C. or higher, and further preferably 130 ° C. or higher, from the viewpoint of ease of handling.

Although the manufacturing method of the said insert nut part is not specifically limited, For example, three-dimensional modeling methods (for example, cutting modeling method, additive manufacturing method (optical modeling method, powder sintering additive manufacturing method, hot melt lamination method, inkjet method, etc.) For example, a method of forming a mold and forming it by an injection molding method, a method of forming by cutting, a method combining these, and the like. Among these, a three-dimensional modeling method is preferable. In particular, from the viewpoint that the manufacturing time is short, the shape of the nut fixing portion or the like can be accurately formed, and the bolt and the nut can be more firmly fixed, a method of forming by a hot melt lamination method is more preferable. An example of the cutting modeling method is cutting modeling using a 3D plotter.
In addition, the method of forming by the additive manufacturing method is superior in that it can be manufactured in a short time and at a low cost as compared with injection molding using a mold. In addition, the accuracy of the shape is excellent compared to the method of forming by cutting.

  The insert nut portion may be manufactured by connecting parts manufactured by different methods or the same method. The joining method is not particularly limited, and examples thereof include a joining method using an adhesive, a joining method using a mech process, and a method in which the surfaces are melted and joined together by a solvent, ultrasonic waves, and heating. Especially, it is preferable that the said insert nut part is integrally formed from a viewpoint of intensity | strength.

  As a nut member to be inserted into the insert nut portion, any nut member that has a threaded hole that penetrates and has a female screw structure (hereinafter may be referred to as a “screw hole having a female screw structure”) on the inner periphery of the screw hole is used. There is no particular limitation. In the nut member, the number of screw holes having a female screw structure may be one, or two or more may be provided (FIG. 31). As said nut member, for example, one or more (for example, 1-20 pieces, 2-10 pieces, etc.) in well-known usual polygon nuts, such as a hexagon nut, a square nut, and a triangular nut, and a long rectangular parallelepiped metal And a nut member (FIG. 31) having a screw hole having a female screw structure. The nut member may have a flange. From the viewpoint that the nut member can be more firmly fixed, a metal nut member (for example, a metal nut or the like) is preferable.

  The bolt to be inserted into the insert nut portion is not particularly limited as long as it has a male screw structure, and examples thereof include a hexagonal bolt, a square bolt, a round head bolt, an eye bolt, and a butterfly bolt. From the viewpoint that the bolt can be more firmly fixed, a metal bolt is preferable. The bolt may have a washer.

  Below, the example of the preferable specific aspect of an insert nut part is shown.

  3 and 4 are schematic views of the entire insert nut portion. 5-10 is the schematic of a fastening surface (insert nut part upper end surface). FIGS. 11-19 is sectional drawing (XX sectional drawing in FIGS. 3, 4) of the height direction of an insert nut part. 20 to 26 are cross-sectional views in the width direction of the insert nut portion (YY cross-sectional view in FIG. 3). 27-30 is sectional drawing of the width direction of an insert nut part of the composite structure which combined the structure of this invention and the to-be-fastened member with the volt | bolt and the nut member.

  3 and 4 show an insert nut portion having one nut insertion hole 9 (nut insertion port 10) on the front face 4 of the insert nut portion and one bolt insertion hole 7 on the upper end surface 3 of the insert nut portion.

  The shape of the bolt insertion hole 7 provided in the fastening surface 3 is, for example, circular (FIGS. 5-7, 10), regular hexagon (FIG. 8), and star (decagon) (FIG. 9). Also good. Two or more bolt insertion holes (for example, 1 to 20, 2 to 10 or the like) may be provided (FIGS. 10 and 32).

  The nut insertion hole 9 has an opening 10 and a nut fixing portion 13 (FIG. 11). The nut fixing portion 13 is provided at an intersection (communication portion) between the bolt insertion hole 7 and the nut insertion hole 9 (FIG. 20). In the nut fixing part 13, the inserted nut member 16 can be fixed in a state where it can be screwed with the bolt 20 inserted into the bolt insertion hole 7 (FIGS. 27 to 30). Moreover, in the nut fixing | fixed part 13, rotation of the circumferential direction of the nut member 16 inserted in the nut insertion hole 9 is prevented (FIGS. 17-19).

  It is preferable that the opening part 10 and the nut fixing | fixed part 13 are slightly larger than the nut member 16 inserted (FIGS. 17-19, 27). Two or more nut insertion holes 9 (for example, 1 to 20, 2 to 10 or the like) may be provided (FIG. 21).

  The bolt insertion hole 7 may penetrate (FIG. 23). When the bolt insertion hole is penetrating, the bolt 20 and the nut member 16 are fastened by using two or more nut members 16, and the insert nut portion 2 and the fastened member 21 are combined (fixed). Preferred (FIG. 30). Moreover, when using a screwed bolt (a drill screw, a wood screw, etc.), the bolt insertion hole may have a location smaller than the outer diameter of the bolt (FIGS. 24 and 28).

  The structure of the present invention can be combined (fixed, fastened, firmly fixed, connected, connected, combined) with the member to be fastened by the bolt and nut member inserted into the insert nut portion.

  In the structure of the present invention, the position where the insert nut portion is provided can be inserted from a nut insertion hole (opening portion) (for example, an opening provided in front of the insert nut portion) (the nut member is attached to the nut fixing portion). If it is provided so that a bolt can be inserted from a bolt insertion hole (for example, a bolt insertion hole provided in a fastening surface) (so that it can be fastened with a nut member fixed to the nut fixing portion). It is not limited. For example, it may be provided so that only the bottom surface of the insert nut portion is in contact (the insert nut portion may be provided as a column-shaped protruding portion, FIG. 1), or the insert nut portion rear surface (having an opening). Only the surface opposite to the front surface of the insert nut portion may be provided (FIG. 37), or may be provided so that the side surface, the back surface, and the bottom surface of the insert nut portion are in contact and embedded.

In the structure of the present invention, a plurality of the insert nut portions (for example, 1 to 100 pieces, 2 to 50 pieces, etc.) may be provided. From the standpoint that it can be more firmly fixed to the member to be fastened, when multiple insert nut parts are provided, the fastening surfaces (upper end faces of the insert nut parts) of all the insert nut parts are provided on the same plane. It is preferable (FIG. 1, 37).
Moreover, it is preferable that the said insert nut part is provided in the facing (for example, it is provided in the facing on the wall surface of a cylindrical structure) (FIG. 1). For example, the structure of the present invention may be a structure having two insert nut portions provided on the opposite side (FIG. 1).

  From the viewpoint that the structure of the present invention has a wide contact area with the member to be fastened and can be more stably fixed, the structure of the present invention and the member to be fastened can be secured by a bolt and a nut member in addition to the insert nut portion. , The structure of the present invention may be in contact with the member to be fastened (the portion 22 where the structure of the present invention other than the insert nut portion in FIG. 1 is in contact with the member to be fastened). . In addition, the screw hole which has a female screw structure may be provided in the part which the structure of this invention other than an insert nut part and a to-be-fastened member contact. The shape, size, number, and material of the portion where the structure of the present invention is in contact with the member to be fastened are not particularly limited. In the structure of the present invention, the portion where the structure of the present invention and the fastened member are in contact is provided such that the upper end surface and the insert nut portion upper end surface (fastening surface) are all on the same plane. Preferably it is.

  Although it does not specifically limit as a structure of this invention, For example, the container (or cylindrical thing) which can accommodate articles | goods and has an opening part is mentioned (FIG. 37). In this case, in the container (or cylindrical object), the insert nut portion is provided on the peripheral wall of the container (or cylindrical object) so that the bolt can be inserted into the bolt insertion hole from the opening. Is preferred. The outer shape of the container (or cylinder) is not particularly limited as the container, but for example, a columnar shape, a prismatic shape (for example, a quadrangular prism shape, a pentagonal prism shape, a hexagonal column shape, etc.), a spherical shape, a spherical crown shape, Conical, pyramidal (eg, quadrangular, pentagonal, hexagonal, etc.), truncated cone, truncated pyramid (eg, truncated, pentagonal, hexagonal) Examples thereof include a spherical shape, an inverted cone shape, an inverted pyramid shape, a combination thereof, and a shape obtained by cutting a part of these. Moreover, you may have an uneven | corrugated | grooved part and a hole.

  As a structure of this invention, the structure shown in FIG. 37 may be sufficient, for example. In other words, all insert nuts have openings on both end faces of the truncated cone shape and are hollow so that the inside can accommodate wiring, and the back face of the insert nut part and the peripheral wall inside the structure are in contact with each other. The structure may be such that three insert nut portions are provided so that the upper end surfaces (fastening surfaces) of the portions are on the same plane, and the three insert nut portions are provided at equal intervals.

  Moreover, as a structure of this invention, the shape (FIG. 1) provided as a part which the insert nut part protruded in column shape in flat form is mentioned, for example.

  The structure of the present invention is preferably, for example, a structure in which the nut member is fixed to the nut fixing portion.

  Although the method of fixing a nut to the said insert nut part is not specifically limited, For example, the method of FIGS. 34-36 is mentioned. Specifically, first, the nut member is inserted into the opening of the insert nut portion so that the nut member can be easily fixed to the nut fixing portion (the direction that can be fixed to the nut fixing portion) (the nut member inserting step). 33, 34). The method for inserting the nut member in the nut member inserting step is not particularly limited. For example, the nut member is manually pushed from the opening, or the nut member is inserted from the opening by a tool (for example, a metal such as a screwdriver). For example, a tool or the like).

  Next, the inserted nut member is pushed into the nut fixing portion (nut member pushing step, FIGS. 33 and 35). The method of pushing the nut member is not particularly limited, and for example, the nut member may be pushed by hand, or a tool (for example, a metal tool such as a driver) may be used.

Next, the pushed nut member is fixed to the nut fixing portion (nut fixing step, FIG. 36). The method for fixing the nut member is not particularly limited, and examples thereof include a method using an adhesive and a method in which the nut member is heated to melt the surrounding resin. In particular, when the shape of the nut fixing portion is a shape corresponding to the nut member, a method of fixing only by pushing the nut member is preferable.
When the nut member fixed by the above method is fastened (screwed) to the bolt, rotation of the nut is hindered in the bolt tightening direction, so that the bolt and the nut member are easily and firmly fixed. be able to.

  From the viewpoint of improving the durability, weather resistance, water repellency and the like of the structure of the structure of the present invention and suppressing the diffusion of harmful substances generated from the structure of the present invention, for example, glass coating A coating treatment (film treatment) such as may be applied.

  Examples of the material constituting the structure of the present invention include the same materials as those constituting the above-described insert nut portion. Among these, a thermoplastic resin is preferable from the viewpoints of excellent strength, easy handling, and recycling, which reduces waste, is environmentally friendly, is easy to process, and has excellent shape accuracy. The above-mentioned thing is mentioned as said thermoplastic resin. Among these, a material containing polycarbonate is preferable from the viewpoint of being strong against impact and having a strength capable of withstanding screw fastening.

  Although the manufacturing method of the structure of the present invention is not particularly limited, for example, a three-dimensional modeling method (for example, a cutting modeling method, a layered modeling method (an optical modeling method, a powder sintering layered modeling method, a hot melt lamination method, an ink jet method) Etc.), a method of forming a mold and forming it by an injection molding method, a method of forming by cutting, a method combining these, and the like. Among these, a three-dimensional modeling method is preferable. That is, the structure of the present invention is preferably a structure formed by a three-dimensional modeling method. In particular, a method of forming by a hot melt laminating method is more preferable from the viewpoint that the manufacturing time is short, the shape of the nut fixing portion and the like can be accurately formed, and the bolt and the nut member can be more firmly fixed. The structure of the present invention is preferably manufactured as a single unit by the same method as the insert nut portion.

  In the production of the structure of the present invention (or the insert nut portion), the temperature of the resin when laminating the resin is not particularly limited, but is preferably 200 to 300 ° C., for example. From the viewpoint that the resin laminated by the additive manufacturing method adheres more firmly, the temperature at which the resin is laminated is preferably near the melting point of the resin to be used or higher than the melting point.

  In the production of the structure (or the insert nut portion) of the present invention, the equipment used when producing by the layered manufacturing method is not particularly limited, and examples thereof include a three-dimensional printer. The three-dimensional printer is not particularly limited. For example, a three-dimensional printer of a heat melting lamination method (FDM (Fused Deposition Modeling) method) is preferable. The FDM type three-dimensional printer is not particularly limited. The name “Fortus 900mc” (Stratasys) may be mentioned.

  The structure of the present invention may be manufactured by connecting parts manufactured by different methods or the same method. The joining method is not particularly limited, and examples thereof include a joining method using an adhesive, a joining method using a mech process, and a method in which the surfaces are melted and joined together by a solvent, ultrasonic waves, and heating. Especially, it is preferable that the said insert nut part is integrally formed from a viewpoint of intensity | strength.

  The structure of the present invention can be used for, for example, a composite use (fixing, fastening, combination, etc.) with a member to be fastened (for example, a workpiece). More specifically, for example, household electrical equipment such as TVs and personal computers, communication information equipment such as mobile phones, manufacturing equipment, 3D printers, industrial or laboratory equipment such as measuring equipment, medical equipment, automobiles, It can be used for applications (fixing, fastening, combining) of parts in parts such as bicycles, airplanes, trains, motorcycles, furniture (for example, housings, internal parts, members for binding wires, etc.). Among them, a member for bundling wiring (cable, cord, tube, etc.) (a member for housing wiring in a hollow portion and bundling wiring in combination with a member to be fastened (for example, a lid having a hole through which the wiring passes) (FIG. 37, 38)). Moreover, you may use for the use which seals a liquid, gas, a powdery thing, etc. by the combination with a to-be-fastened member.

Since the structure of the present invention has a nut insertion hole, a nut member (for example, a metal nut) can be easily inserted from the opening (a female screw structure can be easily added (added) later). Therefore, the work of attaching the insert nut portion to the structure manufactured in advance is unnecessary, and it is excellent in versatility and can be applied to a small or thin structure. In addition, since the position of the insert nut portion (particularly the position of the bolt insertion hole and the nut fixing portion) can be accurately formed, the bolt and the nut member can be firmly fixed.
In particular, when the structure of the present invention is made of resin, the position of the insert nut portion can be controlled more precisely. In particular, in the case of being manufactured by a three-dimensional modeling method (particularly, a layered modeling method by a hot melt lamination method), the position of the insert nut portion is more accurate than the processing by cutting or the like, and the manufacturing becomes easy. .
Since the structure and the shape of the insert nut portion can be precisely controlled, the structure of the present invention is firmly fixed (fastened) to other structures using bolts (for example, metal bolts) and nut members (for example, metal nuts). it can.

  In addition, the structure of the present invention is advantageous in the following points as compared with the case where two plates having bolt holes (holes into which bolts can be inserted) are combined (fixed and fastened) using bolts and nuts. . That is, since the nut member is prevented from rotating in the circumferential direction, it is not necessary to hold the nut member with a finger when the bolt and the nut member are fastened, and a space for inserting the finger is unnecessary. In addition, since the nut member is prevented from rotating in the circumferential direction by the nut fixing portion even after the fastening, the nut member is difficult to loosen after the fastening, and the state where the bolt and the nut member are firmly fastened can be maintained for a long time.

[Fastened member]
Although it does not specifically limit as said to-be-fastened member, The member (structure which makes a pair with the structure of this invention) which has a bolt hole (hole which can insert a bolt, a hole) in the location corresponding to the said insert nut part (facing) ) As long as it is not particularly limited. The shape of the fastened member is not particularly limited. For example, a cylindrical shape, a prismatic shape (for example, a quadrangular prism shape, a pentagonal prism shape, a hexagonal column shape, etc.), a spherical shape, a spherical crown shape, a conical shape, a pyramid shape (for example, a quadrangular pyramid shape) Shape, pentagonal pyramid shape, hexagonal pyramid shape, etc.), truncated cone shape, truncated pyramid shape (eg, quadrangular pyramid shape, pentagonal pyramid shape, hexagonal pyramid shape, etc.), oval, inverted cone shape, inverted pyramid shape, A combination thereof, a shape obtained by cutting a part of these, a shape having an uneven portion on the surface thereof, a shape having a hole (through hole) in these, and the like can be mentioned. Especially, it is preferable that it is a member which has the surface (preferably surface which contacts) the upper end surface (fastening surface) of an insert nut part, for example, the shape (FIG. 38) etc. which cut out a part of outer peripheral side surface of a cylinder are mentioned. It is done. Although the said to-be-fastened member is not specifically limited, What was formed from materials, such as a metal, resin, and these combination, may be used. Moreover, the manufacturing method of a to-be-fastened member is although it does not specifically limit, The manufacturing method by the three-dimensional modeling method (For example, the lamination modeling method by a hot-melt lamination method), the method by cutting, the method by an injection molding method, etc. are mentioned.

  An example of the member to be tightened is a lid (FIG. 38). Specifically, a resin lid (FIG. 38) having three bolt holes and part of a side surface of a cylinder cut out in a square shape can be used.

[Composite structure]
The composite structure of the present invention is a composite structure in which the structure of the present invention and a fastened member having a bolt hole are combined. The composite structure of the present invention is fixed to the bolt hole in the fastened member and the bolt insertion hole in the structure of the present invention in this order, and the nut fixing portion in the structure of the present invention. It is a composite structure that is composited (fastened) by the nut member that is made.

  In the composite structure of the present invention, the structure of the present invention may be combined with two or more members to be fastened.

  Although it does not specifically limit as a manufacturing method of the composite structure of this invention, For example, the process of fixing a nut member to the insert nut part of the structure of this invention (for example, the said nut member insertion process, the said nut member pushing process, And a step including a nut fixing step), the bolt hole of the member to be fastened, and the bolt insertion hole of the structure of the present invention are passed through the bolts, and the bolt and the nut member fixed to the nut fixing portion are fastened. The method of including the process (composite process) which combines the structure of this and a to-be-fastened member is mentioned.

  Specifically, for example, a method of combining the structure 1 of the present invention and the fastened member 21 by the method described in FIGS. The insert nut portion in the structure of the present invention and the bolt hole of the member to be fastened are overlapped so as to face each other (see FIGS. 39 to 41), and then the bolt is the bolt hole of the member to be fastened, the structure of the present invention. The bolts may be inserted in the order of the bolt insertion holes of the object, fastened with the nut member fixed to the nut fixing portion, and combined.

  Examples of the composite structure include household electrical equipment such as TVs and personal computers, communication information equipment such as mobile phones, manufacturing equipment, 3D printers, industrial or laboratory equipment such as measuring equipment, medical equipment, automobiles, and the like. , Bicycles, airplanes, trains, motorcycles, furniture, and other parts (for example, housings, internal parts, members that bundle wiring, etc.). Especially, it is preferable to use as a member (FIG. 37, 38) which bundles wiring (a cable, a cord, a tube, etc.). Moreover, you may use for the use which seals a liquid, gas, a powdery thing, etc.

DESCRIPTION OF SYMBOLS 1 Structure 2 Insert nut part 3 Fastening surface 4 Insert nut part front surface 5 Insert nut part side surface 6 Insert nut part width 7 Bolt insertion hole 8 The largest circle which can be drawn inside a bolt insertion hole 9 Nut insertion hole 10 Opening part (nut Insertion slot)
11 Width of opening, width of nut fixing portion 12 Height of opening, height of nut fixing portion 13 Nut fixing portion 14 Shortest distance between fastening surface and nut fixing portion 15 Longest distance between fastening surface and nut fixing portion 16 Nut member 17 Face-to-face distance of nut member 18 Diagonal distance of nut member 19 Height of nut member 20 Bolt 21 Fastened member 22 Part where the structure to be fastened and the fastened member other than the insert nut portion are in contact with each other

Claims (5)

An insert nut portion into which a nut member can be inserted is provided, and a structure that can be combined with a member to be fastened by a bolt and a nut member,
The insert nut portion is
A fastening surface with a fastened member;
A bolt insertion hole extending inward from the fastening surface;
A nut insertion hole extending laterally from the side wall of the bolt insertion hole and having an opening for inserting a nut member;
A nut fixing portion provided at an intersection of the bolt insertion hole and the nut insertion hole;
The nut fixing portion is formed so that the nut member can be fixed in a state where it can be screwed with a bolt inserted into the bolt insertion hole and in a state where rotation in the circumferential direction is prevented. And a structure.   The structure according to claim 1, which is formed by a three-dimensional modeling method.   The structure according to claim 1 or 2, wherein a nut member is fixed to the nut fixing portion. A composite structure in which the structure according to claim 3 and a fastened member having a bolt hole are combined,
A composite structure in which the bolt is passed through the bolt hole and the bolt insertion hole in this order and a nut member fixed to the nut fixing portion.   The manufacturing method of the structure which forms the structure of Claim 1 by a three-dimensional modeling method.

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