JP5450154B2 - Screw seat mounting structure - Google Patents

Description

  The present invention relates to a screw seat mounting structure for mounting a screw seat to a mounting plate.

2. Description of the Related Art Conventionally, a bolt is attached to an attachment plate by attaching a screw seat to the attachment plate and fixing a member to a screw hole formed in the screw seat via a bolt.
When the mounting plate is formed of a wooden member, a screw seat mounting structure in which a screw hole is provided by mounting a screw-type nut (demon nut) on the mounting plate is common.
In addition, when the mounting plate is made of a metal plate, screw seat mounting with screw holes is provided by welding nuts to the mounting plate or threading the inner surface of the insertion holes drilled in the mounting plate. The structure is common.
According to these screw seat mounting structures, it is possible to reliably provide a screw hole in the mounting plate, thereby stably supporting a member attached to the screw hole.

  However, in the screw seat mounting structure in which the mounting plate is made of a metal plate, it is necessary to perform troublesome processing on the mounting plate, such as welding and screw processing, and screw holes on the mounting plate. In the case where it is desired to change the position where the screw is provided, or when there are a plurality of members attached to the screw holes, there is a problem that a great number of processing steps and processing costs are required.

As a screw seat mounting structure capable of solving this problem, one described in Patent Document 1 is known. In this structure, a nut member (screw seat) having a screw hole and a stepped bolt are attached to a side wall (mounting plate) used for a desk, and the attaching / detaching operation of the nut member to the mounting plate and the step to the screw hole are performed. The attachment bolt can be attached / detached from only one side of the attachment plate.
More specifically, the side wall is provided with a bolt insertion hole for connecting the inside and outside of the side wall and a nut member insertion hole (opening). The distal end portion of the nut member is inserted into the inner surface side of the side wall through the nut member insertion hole, and the screw hole can be matched with the bolt insertion hole from the inside. And the front-end | tip part of a nut member is hold | maintained so that it may contact | abut to the inner surface of a side wall, and a stepped volt | bolt is screwed to a screw hole through a bolt insertion hole.
According to the screw seat mounting structure configured as described above, the number of parts can be reduced as compared with the conventional structure in which the nut is fixed in advance, and the man-hour required for welding the nut can be reduced.

JP-A-9-252848

  However, since the screw seat mounting structure described in Patent Document 1 is displaced when attaching the stepped bolt to the screw hole, it is necessary for the operator to hold the nut member, and the workability during assembly is improved. There is a problem of being bad.

  The present invention has been made in view of such problems, and the screw seat can be attached to and detached from the mounting plate only from one side with respect to the mounting plate. When the screw seat is attached to the mounting plate, the screw It is an object of the present invention to provide a screw seat mounting structure that prevents the seat from being displaced.

In order to solve the above problems, the present invention proposes the following means.
The screw seat mounting structure of the present invention is a screw seat mounting structure for mounting a screw seat provided with a screw hole to a mounting plate. The screw seat is formed with the screw hole, and A main body abutting on the inner surface; a fixing portion extending from the main body portion along the inner surface of the mounting plate; and an end of the fixing portion opposite to the main body portion at the first locking portion with locked to the inner surface of, e Bei and a locking pawl provided to be elastically deformed along the inner surface of the mounting plate, the mounting plate, the through screw hole and communicating, through from the outer surface to the inner surface A bolt insertion hole, an opening formed to expose at least a part of the fixing portion, and a size that allows the screw seat to be inserted and removed, and movement from the inside to the outside of the fixing portion. From the first locking portion to be controlled and the outside of the fixed portion A second locking portion provided so as to form a space portion that restricts movement to the side and allows the main body portion to be inserted into and removed from an edge portion of the opening on the bolt insertion hole side. It is characterized by providing.

According to this invention, the screw seat is in contact with the inner surface of the mounting plate, and the movement from the inside to the outside is restricted, while the movement from the outside to the inside is restricted by the second locking portion. . Furthermore, the screw seat is in contact with the inner surface of the mounting plate, so that rotation to one side around the edge of the opening is restricted, while movement from the inside to the outside is restricted by the first locking portion. Therefore, rotation to the other side around the edge of the opening is restricted. For this reason, by restricting the movement of the screw seat in the direction away from the inner surface of the mounting plate and the rotation around the edge of the opening, the screw seat can be stably attached to the mounting plate without being displaced.
Further, the screw seat is accessed from the outside through the opening, and the locking relationship between the first locking portion and the screw seat is released in the direction along the inner surface, and then the screw seat is rotated around the edge of the opening to the other side. Thus, the main body portion can be removed to the outside via the opening from between the second locking portion and the opening edge, and the screw seat can be easily attached and detached from the outside.
Also, insert the screw seat body part between the second locking part and the opening edge and rotate the fixing part around the opening edge to one side with the locking claw moved to the body part side. Thus, the locking claw is brought into contact with the inner peripheral surface of the opening on the first locking portion side. From here, the locking claw is moved to the main body by the elastic force of the locking claw only by further rotating the fixing part until the outer end of the locking claw reaches the inner end of the inner peripheral surface of the opening. It moves to the direction away from a part, and the outer part of a latching claw contacts the inner surface of a 1st latching | locking part.
Thereby, a fixing | fixed part can be hold | maintained to an inner surface from the outer side.

In the screw seat mounting structure described above, the locking claw may be provided with an inclined surface formed so as to go from the fixed portion side toward the main body portion side from the outside toward the inside. preferable.
According to this invention, after the main body portion of the screw seat is inserted between the second locking portion and the opening edge, the fixing portion is rotated to one side around the opening edge to cause the inclined surface to move to the first engagement. Contact the stop. By further rotating the fixing portion to one side in this state, the locking claw can be moved to the main body portion side by the component force of the force acting on the inclined surface from the first locking portion.

In the screw seat mounting structure described above, it is more preferable that the locking claw is provided with an inner peripheral surface side locking portion that is locked to the inner peripheral surface of the opening.
According to this invention, when the inner peripheral surface side locking portion is locked to the inner peripheral surface of the opening, it is possible to prevent the screw seat from moving in a direction toward the fixing portion side with respect to the main body portion.

In the above screw seat mounting structure, it is more preferable that the inner peripheral surface side locking portion protrudes outward from the outer surface of the mounting plate.
According to this invention, by placing a finger or the like between the outer surface of the mounting plate and the inner peripheral surface side locking portion, the inner peripheral surface side locking portion can be easily moved in a direction along the inner surface of the mounting plate. Can do.

Further, in the above screw seat mounting structure, the screw seat has the screw seat with respect to the mounting plate, and at least the portion of the mounting plate where the fixing portion is locked to the first locking portion. More preferably, a retracting portion is provided that is movable in a direction along the inner surface by a length in the direction along the inner surface.
According to the present invention, the screw seat is connected to the mounting plate by the length in the direction along the inner surface of the mounting plate at least at the portion where the fixing portion is locked to the first locking portion. By moving in the direction, the fixed portion and the first locking portion can be engaged or released.

Further, in the above screw seat mounting structure, the mounting plate includes a restricting portion that restricts the screw seat from moving in a direction along the mounting plate and intersecting the direction connecting the main body portion and the fixing portion. It is more preferable to provide further.
According to this invention, the screw seat can be stably moved with respect to the mounting plate in the direction connecting the main body portion and the fixed portion.

In the above screw seat mounting structure, it is more preferable that the main body portion of the screw seat has a nut member and a screw seat main body in which a fitting hole into which the nut member can be fitted is formed.
According to this invention, the cost required for manufacturing a screw seat can be reduced by comprising a screw seat using the nut member which is a general purpose product.

Further, in the above screw seat mounting structure, the mounting plate is formed of a metal plate, and when the opening is formed in the mounting plate, the second locking portion is restricted to the inner surface side of the mounting plate. More preferably, it is formed by processing.
According to this invention, the manufacturing cost required for forming the opening and the second locking portion on the mounting plate can be reduced.

  According to the screw seat mounting structure of the present invention, the screw seat can be attached to and detached from the mounting plate from only one side of the mounting plate, and the screw seat can be prevented from being displaced when the screw seat is attached to the mounting plate. it can.

It is a perspective view of the desk apparatus in which the screw seat mounting structure of 1st Embodiment of this invention is used. It is sectional drawing of cutting line A1-A1 in FIG. It is a perspective view of the screw seat of the desk device. It is the side view which fractured | ruptured a part of the screw seat. It is a perspective view of the back plate of the desk device. It is sectional drawing explaining the process of attaching a screw seat to the back surface board of the desk apparatus. It is sectional drawing explaining the process of attaching a screw seat to the back surface board of the desk apparatus. It is a perspective view of the moving part main body of the desk apparatus. It is a perspective view of the attachment material which comprises the moving part main body of the desk apparatus. It is a perspective view of the cosmetic material receiver which comprises the moving part main body of the desk apparatus. It is a perspective view of the front board which comprises the decorative material of the desk apparatus. It is a perspective view of the side cover which comprises the decorative material of the desk apparatus. It is sectional drawing explaining the process of attaching a cosmetic material to the moving part main body of the desk apparatus. It is a perspective view which shows the state which attached the decorative material to the moving part main body of the desk apparatus. It is sectional drawing explaining a state when a cosmetic material is moved to a retracted position with the desk device. It is principal part sectional drawing of the side surface of the desk apparatus in which the screw seat attachment structure of 2nd Embodiment of this invention is used. It is a perspective view of the back plate of the desk device. It is a perspective view of the screw seat of the desk device. It is an A3 part enlarged view in FIG. It is a bottom view of the screw seat of the desk apparatus. It is sectional drawing explaining the process of attaching a screw seat to the back surface board of the desk apparatus. It is sectional drawing explaining the process of attaching a screw seat to the back surface board of the desk apparatus.

(First embodiment)
Hereinafter, an embodiment of a desk device in which a first embodiment of a screw seat mounting structure according to the present invention is used will be described with reference to FIGS.
As shown in FIG. 1 and FIG. 2, the desk device 1 of the present embodiment includes a plate-shaped top plate 2 formed in a rectangular shape in plan view and a length that forms a front edge on the user side of the top plate 2. A pair of legs are attached to both ends in the left-right direction X parallel to the side 2a at an interval, and are provided on the lower surface of the top plate 2 and a U-shaped leg (support) 3 supporting the top plate 2 in side view. A drawer 4, a decorative material (blocking portion) 5 disposed on the side (left and right direction X) of the drawer 4, and a moving mechanism 6 that allows the decorative material 5 to slide.
In the present embodiment, among the four drawers 4 arranged in the left-right direction X, a drawer 4A having a narrow width in the left-right direction X is arranged at both ends, and a drawer 4B having a wide width in the left-right direction X is arranged at the center. ing. A fixed gap is formed between the two drawers 4B arranged in the center (side), and the decorative material 5 is arranged in the gap.

As shown in FIG. 1, a curtain plate 9 is erected on the rear Y1 side between the pair of legs 3 (opposite side to the user in the front-rear direction Y parallel to the short side 2b of the top plate 2). . Both end portions in the left-right direction X of the curtain plate 9 are connected to the pair of legs 3, respectively. The adjuster 10 is attached to the lower surface of the leg 3, and the height from the floor surface (not shown) to the lower surface of the leg 3 at the position where the adjuster 10 is attached can be adjusted. The top plate 2, the pair of legs 3, and the curtain plate 9 integrally constitute the desk device 1 firmly.
A support rail (not shown) extending in the front-rear direction Y is attached to the lower surface of the top plate 2. The drawer 4 is slidable between a storage position P1 stored in the lower part of the top plate 2 and an extraction position P2 protruding from the edge 2c of the top plate 2 by being guided by the support rail.

As shown in FIG. 2, the top plate 2 includes a surface plate 13 disposed above, a back plate (attachment plate) 14 disposed below the surface plate 13 with a certain distance from the surface plate 13, and have. In the present embodiment, the front plate 13 and the back plate 14 are arranged so as to be parallel to the horizontal plane.
The front plate 13 and the back plate 14 are formed of a metal plate. An end portion of the surface plate 13 is folded inward to form a flange portion 13a. The back plate 14 is attached to the front plate 13 by fixing its end portion 14 a bent upward to the flange portion 13 a of the front plate 13.
A side edge 15 made of resin is mounted on the side surface of the flange portion 13a of the surface plate 13.
In addition, the fixing method of the surface board 13 and the back surface board 14 is not restricted to said method, Various well-known methods can be used. In the following, for convenience of explanation, the upper side with respect to the back plate 14 is referred to as an inner side D1, and the lower side is referred to as an outer side D2.

Below, the screw seat 18 attached to the back surface board 14 so that attachment or detachment is possible is demonstrated first.
As shown in FIGS. 3 and 4, the screw seat 18 includes a main body 19 having a screw hole 21 a and abutting against an inner surface (surface of the inner side D <b> 1) 14 b (see FIG. 2) of the back plate 14. And a fixed portion 20 extending in the front-rear direction Y from the portion 19 along the inner surface 14 b of the back plate 14. The direction connecting the main body 19 and the fixed portion 20 in the present embodiment is the front-rear direction Y.
The main body 19 includes a nut member 21 and a screw seat body 23 in which a fitting hole 22 into which the nut member 21 is fitted is formed in the lower part. The screw hole 21 a described above is formed in the nut member 21.
The screw seat body 23 is formed with a through hole 23 a communicating with the fitting hole 22. The inner diameter of the through hole 23a is set to be smaller than the inner diameter of the fitting hole 22, and a step portion 23b is formed at a portion where the fitting hole 22 and the through hole 23a communicate with each other.

A locking claw 24 that is elastically deformable in the front-rear direction Y along the inner surface 14 b of the back plate 14 is provided at the end of the fixed portion 20 opposite to the main body 19. The locking claw 24 is provided with an inclined surface 24a formed so as to go from the fixed portion 20 side to the main body portion 19 side as it goes from the outer side D2 to the inner side D1. The locking claw 24 is provided with an inner peripheral surface side locking portion 25 that locks to an inner peripheral surface of an opening 29 described later of the back plate 14.
The screw seat main body 23, the fixing portion 20, the locking claw 24, and the inner peripheral surface side locking portion 25 are integrally formed of, for example, resin.
In a state where the screw seat 18 is attached to the back plate 14, the inner peripheral surface side locking portion 25 is set so as to slightly protrude from the outer surface (the surface of the outer side D2) of the back plate 14 toward the outer side D2. Yes. The length by which the inner peripheral surface side locking portion 25 protrudes from the outer surface of the back plate 14 can be appropriately set according to the specifications of the desk device 1.

As shown in FIGS. 2 and 5, the back plate 14 is formed so as to communicate with the screw hole 21 a, penetrate a bolt insertion hole 28 that penetrates from the outer surface to the inner surface 14 b, and a part of the fixing portion 20 is exposed downward. And an opening 29 having a size that allows the screw seat 18 to be inserted and removed, and a curved body 30 that is provided on the inner side D1 of the opening 29 and whose both ends are connected to the edges of the opening 29. It has been.
The bolt insertion hole 28 is arranged so as to be rear Y1 with respect to the opening 29.
The bolt insertion hole 28 is formed in a circular shape substantially equal to the inner diameter of the screw hole 21a.
The opening 29 is formed in a substantially rectangular shape, and the length of the opening 29 in the front-rear direction Y is set longer than the length of the curved body 30 in the front-rear direction Y.
The edge of the opening 29 opposite to the bolt insertion hole 28 is a first locking portion 31 that restricts the movement of the locking claw 24 of the screw seat 18 from the inside D1 to the outside D2.

The curved body 30 includes a second locking portion 32 disposed substantially parallel to the back plate 14 at a position on the inner side D <b> 1 of the center portion of the opening portion 29, an end portion of the second locking portion 32, and the opening portion 29. And a pair of restricting portions 33 for restricting the screw seat 18 from moving in the left-right direction X.
The second locking portion 32 restricts the movement of the fixing portion 20 of the screw seat 18 from the outside D2 to the inside D1, and the main body of the screw seat 18 with respect to the edge portion 29a of the opening 29 on the bolt insertion hole 28 side. It is provided so as to form a space part in which the part 19 can be inserted and removed.
The bolt insertion hole 28, the opening 29, and the curved body 30 described above are formed at one time when the back plate 14 is processed by a press machine, for example. More specifically, when the bolt insertion hole 28 and the opening 29 are formed in the back plate 14, the curved body 30 is formed by drawing the inside D 1 of the back plate 14.
As shown in FIG. 2, the screw seat mounting structure 34 of the present embodiment is configured by the screw seat 18, the opening 29, the first locking portion 31, and the curved body 30 described so far.

Here, a procedure for attaching the screw seat 18 to the back plate 14 configured as described above will be described.
First, as shown in FIG. 6, the user brings the screw seat 18 closer to the opening 29 of the back plate 14 from the outer side D2 of the back plate 14, and the edge 29 a of the opening 29 and the second locking portion 32. The main body 19 of the screw seat 18 is inserted into the space formed between the two.
Then, by rotating the fixing portion 20 of the screw seat 18 to the one side E1 around the edge portion 29a, the inclined surface 24a comes into contact with the first locking portion 31 as shown in FIG. Moves backward Y1. Further, when the fixing portion 20 is rotated to the one side E1, as shown in FIG. 2, the main body portion 19 comes into contact with the inner surface 14b of the back plate 14, and at the same time, the fixing portion 20 contacts the second locking portion 32. Touch. At this time, the locking claw 24 is locked by the surface on the inner side D <b> 1 of the first locking portion 31, and the inner peripheral surface side locking portion 25 is locked to the inner peripheral surface of the opening 29.

When removing the screw seat 18 from the back plate 14, the user moves the inner peripheral surface side locking portion 25 protruding from the outer surface of the back plate 14 to the outside D 2 to the rear Y 1, so that the locking claw 24 and In a state where the locking with the first locking portion 31 is released, the fixing portion 20 is rotated around the edge portion 29a to the other side E2 (see FIG. 6) opposite to the one side E1, and the screw seat 18 is rotated. The second locking portion 32 and the edge 29 a of the opening 29 are pulled out to the outer side D <b> 2 through the opening 29.
Thus, the screw seat 18 can be detachably attached to the back plate 14.

Subsequently, the desk device 1 will be described.
As shown in FIGS. 2 and 8, the moving mechanism 6 includes a moving portion main body 36 in which a long hole 42 a that penetrates in the vertical direction and extends in the front-rear direction Y is formed, and is inserted into the long hole 42 a to An attachment screw (support member) 37 is attached to the screw hole 21a provided on the lower surface and supports the moving part main body 36 so as to be movable in the longitudinal direction Y within the long hole 42a. In this embodiment, the moving part main body 36 is formed of a metal plate.
As shown in FIG. 8, the moving part main body 36 is configured by connecting an attachment member 38 and a decorative material receiver 39 to each other by spot welding or the like.
As shown in FIG. 9, the attachment member 38 includes a plate-like hanging portion 40 arranged so as to be orthogonal to the front-rear direction Y, and a pair of extending portions extending from the both ends of the hanging portion 40 in the left-right direction X to the rear Y1. Part 41 and a pair of top plate attaching parts 42 attached to the upper ends of the corresponding extending parts 41 between the pair of extending parts 41. The above-described long holes 42a are formed in the top plate attachment portion 42, respectively.
A flange portion 43 is formed at the lower portion of the drooping portion 40 by folding the end portion of the metal plate back Y1.

As shown in FIG. 10, the decorative material receiver 39 has a plate-like hanging portion 45 arranged so as to be orthogonal to the front-rear direction Y, and the direction opposite to the rear Y1 in the front-rear direction Y from the upper end of the hanging portion 45. A support portion 46 extending to the front Y2, a receiving-side engagement portion 47 folded upward from the front Y2 end of the support portion 46, and projecting from the center portion of the hanging portion 45 to the front Y2 in the left-right direction X. It has the nail | claw part 48 formed in a pair so that it might rank. In this embodiment, the claw portion 48 is formed by cutting and raising the central portion of the hanging portion 45 in the front Y2.
The lower part of the front edge of the claw part 48 is provided with an introduction surface 48a formed so as to go forward Y2 as it goes upward. Both end portions in the left-right direction X and the lower end portion of the hanging portion 45 are folded back to the rear Y1, and a pair of side folded pieces 49 and a lower folded piece 50 are formed.
The attachment member 38 and the decorative material receiver 39 configured as described above are, for example, appropriately spot-welded the hanging portion 40 and the hanging portion 45, the extending portion 41 and the side folded piece 49, and the flange portion 43 and the lower folded piece 50. Are connected to each other.

  The attachment screw 37 is attached to the top plate 2 by being screwed into the screw hole 21a of the top plate 2 in a state where the long hole 42a of the moving unit main body 36 is inserted. Then, in a state where the attachment screw 37 is loosened, the moving part main body 36 can be moved relative to the attachment screw 37 so as to slide in the front-rear direction Y in which the long hole 42a is extended. That is, the sliding direction in which the moving unit main body 36 can slide is the front-rear direction Y.

  As shown in FIG. 2, the decorative material 5 includes a front plate 53 formed so as to extend in the left-right direction X, and side covers 54 and 55 that cover both ends of the front plate 53 ( (See FIG. 14 for the side cover 55). Note that the side cover 55 has a plane-symmetric shape with respect to the side cover 54, and thus the description thereof is omitted.

As shown in FIG. 11, the front plate 53 is formed, for example, by extruding a resin. The front plate 53 includes a plate-like front plate main body 56 disposed so as to be orthogonal to the front-rear direction Y, a lower support portion 57 extending from the lower end portion of the front plate main body 56 to the rear Y1, and an upper end portion of the front plate main body 56. And an upper support 58 extending from the front to the front Y2 and the rear Y1.
An end portion on the rear Y1 side of the lower support portion 57 is provided with a makeup-side lower engagement portion 57a that protrudes upward. Further, a makeup side upper projecting portion 58a and a makeup side upper engaging portion 58b projecting downward are provided at the front Y2 side and rear Y1 side ends of the upper support portion 58, respectively.

As shown in FIG. 12, the side cover 54 includes a cover main body 59 formed in a plate shape orthogonal to the left-right direction X, a first extending portion 60 extending from the cover main body 59 to one side in the left-right direction X, and And a second extending portion 61.
The cover main body 59 is formed so as to be able to cover the entire edge of the front plate 53. That is, the cover main body 59 includes a first main body portion 59a that covers edges of the front plate main body 56 and the lower support portion 57, and an edge portion of the upper support portion 58 that extends from the first main body portion 59a to the front Y2 side. And a second main body 59b for covering. The cover main body 59 is formed in a substantially L shape as a whole by the first main body portion 59a and the second main body portion 59b. A cutout portion 59c generated by joining the first main body portion 59a and the second main body portion 59b is formed in the upper portion of the rear Y1 of the cover main body 59.

The first extending portion 60 is formed in an L shape in a side view corresponding to the upper support portion 58 and the makeup side upper protruding portion 58a. The first extending portion 60 has an upper support portion 58 and a makeup side upper portion between the front plate main body 56 and the makeup side upper protruding portion 58a in a state where the cover body 59 is in contact with the edge of the front plate 53. It arrange | positions along the protrusion part 58a.
Further, the second extending portion 61 is formed linearly in a side view corresponding to the front plate body 56. The second extending portion 61 is disposed along the front plate main body 56 between the lower support portion 57 and the upper support portion 58 in a state where the cover main body 59 is in contact with the edge portion of the front plate 53. ing.

  A groove (not shown) corresponding to the shape of the edge of the front plate 53 in the left-right direction X is formed in the cover main body 59. By engaging this groove with the end of the front plate 53, FIG. As shown, the side cover 54 can be attached to the front plate 53.

  As shown in FIG. 1, when viewed in the left-right direction X along the edge 2c of the top plate 2, the front surface (front Y2 surface) of the decorative material 5 and the front surface 4a of the drawer 4 have the same shape. Is formed. Specifically, for example, when viewed in the left-right direction X, the front surface 4a of the drawer 4 is formed in the same shape as the front surface 58c of the front Y2 of the makeup-side upper protrusion 58a shown in FIG.

FIG. 13 shows a state when the decorative material 5 is attached to the moving unit main body 36.
As shown in FIG. 13, the makeup side upper engagement portion 58 b of the decorative material 5 is engaged with the receiving side engagement portion 47 of the moving portion main body 36, and the makeup surface is applied to the introduction surface 48 a of the claw portion 48 of the moving portion main body 36. The decorative side lower engaging portion 57a of the material 5 is pressed. Then, the front plate 53 is deformed along the introduction surface 48a, and the interval between the makeup side upper engagement portion 58b and the makeup side lower engagement portion 57a of the makeup material 5 is increased, and the makeup is applied to the nail portion 48 as shown in FIG. As shown in FIG. 14, the decorative material 5 is connected to the moving part main body 36 by engaging the side lower engaging part 57 a.
At this time, as shown in FIG. 13, since the cutout portion 59 c is formed in the decorative material 5, the side cover 54 interferes with the movable portion main body 36 when the decorative material 5 is connected to the movable portion main body 36. Is prevented.

As described above, the movable body 36 to which the decorative material 5 is connected is arranged so that the front surface 4a of the drawer 4 disposed at the storage position P1 and the front surface of the decorative material 5 are substantially on the same surface (including “on the same surface”). The position of the decorative material 5 shown in FIG. 1 and FIG. 2 in which the mounting screw 37 is tightened in the screw hole 21a after being adjusted to be disposed is the closed position P3. By attaching or removing the attachment screw 37 to or from the screw hole 21 a, the moving mechanism 6 supports the decorative material 5 so as to be detachable from the top plate 2.
From this state, the mounting screw 37 is rotated and loosened, and as shown in FIG. 15, the moving part main body 36 is moved along the elongated hole 42a so as to retract backward Y1, and the front surface of the decorative material 5 is stored. The position of the decorative material 5 when retracted from the front surface 4a of the drawer 4 arranged at the position P1 is the retracted position P4.
By moving the decorative material 5 to the retracted position P4, for example, a side screen (not shown) used for blindfolding can be attached to the edge 2c of the top plate 2 with the fixing member K.

As described above, according to the screw seat mounting structure 34 of the present embodiment, the screw seat 18 is in contact with the inner surface 14b of the back plate 14 and the movement from the inner side D1 to the outer side D2 is restricted, The movement from the outer side D2 to the inner side D1 is restricted by the second locking portion 32. Further, the screw seat 18 is in contact with the inner surface 14 b of the back plate 14, so that the rotation to the one side E <b> 1 around the edge 29 a of the opening 29 is restricted. Since the movement from the inner side D1 to the outer side D2 is restricted, the rotation around the edge 29a to the other side E2 is restricted. For this reason, by restricting the movement of the screw seat 18 in the direction away from the inner surface 14b of the back plate 14 and the rotation around the edge 29a of the opening 29, the screw seat 18 can be stably moved without being displaced. It can be attached to the back plate 14.
Further, the screw seat 18 is accessed from the outside D2 through the opening 29 to release the locking relationship between the first locking portion 31 and the screw seat 18 in the front-rear direction Y, and then the screw seat 18 is moved around the edge portion 29a. By rotating to the other side E2, the main body 19 is removed from between the second locking portion 32 and the edge 29a to the outside D2 via the opening 29, and the screw seat 18 is easily detached from the outside D2. can do.

A locking claw 24 is provided at the end of the fixed portion 20 opposite to the main body 19. Therefore, the main body 19 of the screw seat 18 is inserted into the space formed between the second locking portion 32 and the edge 29a of the opening 29, and the locking claw 24 is moved to the main body 19 side. In this state, the fixing portion 20 is rotated around the edge portion 29a to the one side E1, and the locking claw 24 is brought into contact with the inner peripheral surface of the opening portion 29 on the first locking portion 31 side. From here, only by further rotating the fixing portion 29 to the one side E1 until the outer end of the locking claw 24 reaches the inner end of the inner peripheral surface of the opening 29, the elastic force of the locking claw 24 The locking claw 24 moves away from the main body 19, and the outer portion of the locking claw 24 comes into contact with the inner surface of the first locking portion 31.
Thereby, the fixing | fixed part 20 can be hold | maintained to an inner surface from the outer side.

  Further, the locking claw 24 is provided with an inclined surface 24a. Thereby, after inserting the main body part 19 of the screw seat 18 between the second locking part 32 and the edge part 29a of the opening part 29, the fixing part 20 is rotated to the one side E1 around the edge part 29a and inclined. The surface 24 a is brought into contact with the first locking portion 31. By further rotating the fixing portion 20 to the one side E1 in this state, the locking claw 24 is moved to the main body portion 19 side by the force component acting on the inclined surface 24a from the first locking portion 31. Can do.

In the present embodiment, the locking claw 24 is provided with an inner peripheral surface side locking portion 25 that locks to the inner peripheral surface of the opening 29. Therefore, when the inner peripheral surface side locking portion 25 is locked to the inner peripheral surface of the opening portion 29, the screw seat 18 can be prevented from moving to the front Y2 side.
And since the inner peripheral surface side latching | locking part 25 protrudes slightly toward the outer side D2 from the outer surface of the backplate 14, a finger | toe etc. between the outer surface of the backplate 14 and the inner peripheral surface side latching | locking part 25 , The inner peripheral surface side locking portion 25 can be easily moved in the front-rear direction Y.

Since the back plate 14 further includes a restricting portion 33 that restricts the screw seat 18 from moving in the left-right direction X, the screw seat 18 can be stably moved in the front-rear direction Y with respect to the back plate 14.
Moreover, since the main-body part 19 of the screw seat 18 has the nut member 21 and the screw seat main body 23, the cost required for manufacturing the screw seat 18 can be reduced.

  The back plate 14 is formed of a metal plate, and when the opening 29 is formed in the back plate 14, the second locking portion 32 is formed by drawing to the inner surface 14 b side of the back plate 14. It has become a thing. Therefore, the manufacturing cost required for forming the opening 29 and the second locking portion 32 in the back plate 14 can be reduced.

(Second Embodiment)
Next, a second embodiment of the present invention will be described. The same parts as those of the above-described embodiment are denoted by the same reference numerals, the description thereof will be omitted, and only different points will be described.
As shown in FIG. 16, the screw seat mounting structure 71 of the present embodiment includes a screw seat 72 and a curved body 73 instead of the screw seat 18 and the curved body 30 of the screw seat mounting structure 34 of the first embodiment. ing.
As shown in FIG. 17, a guide hole 76 extending in the front-rear direction Y is formed in the second locking portion 32 of the curved body 73 of the present embodiment.

As shown in FIGS. 16 and 18, the screw seat 72 is formed with a screw hole 21 a and a main body 80 that contacts the inner surface 14 b of the back plate 14, and the main body 80 along the inner surface 14 b of the back plate 14. And a fixing portion 81 extending in the front-rear direction Y.
The main body 80 includes the nut member 21 and a screw seat main body 83 in which a fitting hole 82 in which the nut member 21 is accommodated is formed in the upper part.
A through hole 83 a communicating with the fitting hole 82 is formed below the fitting hole 82 of the screw seat body 83. The inner diameter of the through hole 83a is set smaller than the inner diameter of the fitting hole 82, and a step portion 83b is formed at a portion where the fitting hole 82 and the through hole 83a communicate with each other.
A nut locking claw 84 that locks the upper surface of the nut member 21 is formed on the inner peripheral surface of the fitting hole 82. The lower surface of the nut member 21 is in contact with the stepped portion 83b, and the upper surface is locked by the nut locking claw 84, so that the nut member 21 accommodated in the fitting hole 82 is difficult to be removed upward.

A substantially rod-shaped guide member 87 extending upward is provided at the center of the upper surface of the fixed portion 81. The guide portion 87 is inserted through the guide hole 76 of the curved body 73 and at the same time, at the end of the guide hole 76 on the front Y2 side. The vertical length L1 (see FIG. 16) from the outer surface of the fixed portion 81 to the upper end portion of the guide member 87 is based on the distance from the second locking portion 32 to the edge portion 29a of the opening 29. Is also set longer.
A fixed portion through hole 88 that penetrates in the vertical direction is formed on the front portion Y <b> 2 of the guide portion 87 in the fixed portion 81. A protruding portion support 89 extending toward the front Y2 side is provided on the inner peripheral surface of the fixing portion through-hole 88 on the main body portion 80 side, and protrudes upward at an end portion on the front Y2 side of the upper surface of the protruding portion support 89. A protruding portion 90 is provided. As shown in FIG. 19, the protruding portion 90 locks the front Y2 side end of the second locking portion 32 from the front Y2 side to the rear Y1 side.
As shown in FIG. 16, the end portion of the fixed portion 81 on the front Y2 side is locked by the first locking portion 31 in the front-rear direction Y by a length L2.

As shown in FIGS. 18 and 20, a positioning portion 91 that protrudes downward is provided on the lower surface of the screw seat 72. The outer surface of the positioning portion 91 is disposed on substantially the same surface as the outer surface of the back plate 14 (see FIG. 16). An end 91a on the rear Y1 side of the positioning portion 91 is configured to be a retracting portion that allows the screw seat 72 to move to the rear Y1 side by a length L2 with respect to the back plate 14.
As shown in FIG. 20, a first finger-hanging recess 92 that is recessed toward the front Y2 side is formed at the center in the left-right direction X of the end 91a of the positioning portion 91 so as to be hooked. And in the center part of the left-right direction X of the edge part of the front Y2 of the positioning part 91, the 2nd finger-hanging recessed part 93 dented in the back Y1 side so that a finger can be put is formed.

Here, a procedure for attaching the screw seat 72 to the back plate 14 configured as described above will be described.
First, as shown in FIG. 21, the user brings the screw seat 72 close to the opening 29 of the back plate 14 from the outside D2 of the back plate 14, and the edge 29 a of the opening 29 and the second locking portion 32. The main body 80 of the screw seat 72 is inserted into the space formed between the two. At this time, the length L1 (see FIG. 16) of the screw seat 72 is set to be longer than the distance from the second locking portion 32 to the edge portion 29a of the opening 29. Intrusion between the front plate 13 and the back plate 14 of the plate 2 is prevented.

Then, with the end portion 91a of the positioning portion 91 in contact with the edge portion 29a of the opening portion 29, the fixing portion 81 of the screw seat 72 is rotated to one side E1 around the edge portion 29a, so that FIG. As shown, the main body 80 abuts against the inner surface 14 b of the back plate 14, and at the same time the fixing portion 81 abuts against the second locking portion 32. At this time, the guide member 87 is disposed at the end on the rear Y1 side in the guide hole 76.
Subsequently, when the screw seat 72 is moved to the front Y2 side by placing a finger on the first finger-hanging recess 92, the protrusion 90 comes into contact with the lower surface of the second locking part 32, so that the protrusion support 89 The front Y2 side bends downward. As shown in FIG. 16, when the guide member 87 comes into contact with the edge on the front Y2 side in the guide hole 76, the end on the front Y2 side of the fixed portion 81 is caused by the first locking portion 31. Since it is locked from the outer side D2 to the inner side D1, and the abutment between the protruding portion 90 and the second locking portion 32 is released, the original shape in which the protruding protruding portion support 89 extends toward the front Y2 side. Returning to FIG. 5, the protruding portion 90 locks the front Y2 side end of the second locking portion 32.
At this time, since the guide member 87 moves in the guide hole 76 to the front Y2, the screw seat 72 can be stably moved in the front-rear direction Y.

When removing the screw seat 72 from the back plate 14, the user puts a finger on the second finger-hanging recess 93 and moves the screw seat 72 to the rear Y1 side, so that the fixing portion 81 and the first engagement member are removed. The engagement with the stop portion 31 and the engagement between the protrusion 90 and the second engagement portion 32 in the front-rear direction Y are released. Then, with the end portion 91a of the positioning portion 91 in contact with the edge portion 29a of the opening portion 29, the fixing portion 81 is rotated around the edge portion 29a to the other side E2, and the screw seat 72 is moved to the second locking portion. 32 and the edge 29 a of the opening 29 are pulled out to the outside D <b> 2 through the opening 29.
Thus, the screw seat 72 can be detachably attached to the back plate 14.

As described above, according to the screw seat mounting structure 71 of the present embodiment, the screw seat 72 is attached to and detached from the back plate 14 only from the outside D2 with respect to the back plate 14 and the screw seat 72 is attached to the back plate 14. Sometimes, the screw seat 72 can be prevented from being displaced.
Furthermore, since the end portion 91a of the positioning portion 91 is set to a predetermined dimension, the fixing portion 81 and the first portion are moved by moving the screw seat 72 in the front-rear direction Y with respect to the back plate 14 by the length L2. The engaging portion 31 can be engaged with or released from the engagement.

As mentioned above, although 1st Embodiment and 2nd Embodiment of this invention were explained in full detail with reference to drawings, the concrete structure is not restricted to this embodiment, The structure of the range which does not deviate from the summary of this invention Changes are also included.
For example, in the first embodiment and the second embodiment, the screw hole 21a is formed in the screw seat by fitting the nut member 21 into the fitting hole of the screw seat. However, for example, the entire screw seat may be integrally formed of steel or the like, and a screw hole may be provided in the screw seat.
In the first and second embodiments, the mounting plate is formed of a metal plate, but may be formed of a resin plate material.

14 Back plate (mounting plate)
14b Inner surface 18, 72 Screw seat 19, 80 Main body portion 20, 81 Fixing portion 21 Nut member 21a Screw hole 22, 82 Fitting hole 23, 83 Screw seat main body 24 Locking claw 24a Inclined surface 25 Inner peripheral surface side locking portion 28 Bolt insertion hole 29 Opening portion 29a Edge portion 31 First locking portion 32 Second locking portion 33 Restricting portion 34, 71 Screw seat mounting structure 91a End portion (retracting portion)
D1 inside D2 outside

Claims (8)

A screw seat mounting structure for mounting a screw seat provided with a screw hole to a mounting plate,
The screw seat is
The screw hole is formed, and a main body that contacts the inner surface of the mounting plate;
A fixed portion extending from the main body portion along the inner surface of the mounting plate ;
A locking claw that is locked to the inner surface of the first locking portion at the end of the fixing portion opposite to the main body and elastically deformable along the inner surface of the mounting plate; ,
Bei to give a,
The mounting plate is
A bolt insertion hole communicating with the screw hole and penetrating from the outer surface to the inner surface;
An opening formed so that at least a part of the fixed portion is exposed and the screw seat is detachable; and
A first locking portion for restricting movement from the inside to the outside of the fixed portion;
The second part is provided so as to form a space part that restricts the movement of the fixing part from the outside to the inside and allows the body part to be inserted into and removed from the edge part of the opening part on the bolt insertion hole side. A screw seat mounting structure comprising: a locking portion. 2. The screw seat according to claim 1 , wherein the locking claw is provided with an inclined surface formed so as to be directed from the fixed portion side toward the main body portion side from the outside toward the inside. Mounting structure. The screw seat mounting structure according to claim 1 , wherein the locking claw is provided with an inner peripheral surface side locking portion that locks to an inner peripheral surface of the opening. The screw seat mounting structure according to claim 3 , wherein the inner peripheral surface side locking portion protrudes outward from the outer surface of the mounting plate. In the screw seat,
The screw seat can be moved relative to the mounting plate in a direction along the inner surface at least as long as a portion along the inner surface of the mounting plate where the fixed portion is locked to the first locking portion. The screw seat mounting structure according to claim 1, wherein a retracting portion is provided. 2. The mounting plate further includes a restricting portion that restricts the screw seat from moving in a direction along the mounting plate and intersecting a direction connecting the main body portion and the fixing portion. To 5. The screw seat mounting structure according to any one of items 1 to 5 . The main body of the screw seat is
A nut member;
A screw seat body formed with a fitting hole into which the nut member can be fitted;
The screw seat mounting structure according to any one of claims 1 to 6 , characterized by comprising: The mounting plate is formed of a metal plate;
The said 2nd latching | locking part was formed by drawing to the inner surface side of the said mounting plate when the said opening part was formed in the said mounting plate, The any one of Claim 1 to 7 characterized by the above-mentioned. The screw seat mounting structure according to one item.

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