JP2009079765A - Furniture connection part structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connection part structure for avoiding troubles in molding. <P>SOLUTION: An inserting portion 31 and an inserted portion 33 are set at the upper end and at the lower end of a supporting column portion 22. A slit 42 is provided in the supporting column portion 22 to form a tongue piece 43. The upper end of the tongue piece 43 is continuously provided on an inside face 41 so as to be elastically deformable inward and outward of the inserting portion 31. A protruded portion 52 is formed on an extending portion 51 extending from a continuous portion 45, and a wide operation portion 61 is provided on the extending portion 51. The operation portion 61 is continuously provided on an inner wall face 41 via an elastically deformed portion 65 which allows the inward elastic deformation of the tongue piece 43 in the state that thrust is applied thereto and which in turn restores the tongue piece 43 into an original position when the thrust is released. In the inserted portion 33, an engaging portion 71 is opened into which the protruded portion 52 of the tongue piece 43 is inserted to engage therewith in the state of the inserting portion 31 is inserted thereinto. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a furniture connecting portion structure for inserting and connecting an insertion portion formed on one side to an insertion portion formed on the other side.

  2. Description of the Related Art Conventionally, a chest is used to store small items and the like, and an assembled type is known as the chest.

  The assembling chest includes a frame and a drawer that is inserted into and removed from a drawer space formed in the frame. The frame includes a plurality of frame constituent members that are connected vertically and an uppermost frame constituent member. It is comprised by the top plate attached on top.

  The said frame structural member consists of the shelf part which supports the said drawer | drawing-out, and the support | pillar part provided in the four corners of this shelf part. The column portion is formed in a hollow shape, and is configured such that the upper end portion of the column portion of the lower frame component member is fitted to the lower end portion of the column portion of the upper frame component member.

  In such an assembly-type chest, when connecting the upper and lower column parts, the lower end part of the column part of the upper frame component member is press-fitted into the upper end part of the column part of the lower frame component member. The upper and lower struts are connected to each other by the frictional resistance between the inner and outer peripheral surfaces. For this reason, at the time of assembly, a relatively strong pushing force is required from above, and when the pushing force is weak, there is a possibility that both of them are detached.

  In order to solve this problem, the applicant of the present application uses the upper end of the column portion as an insertion portion, and the lower end of the column portion as an insertion portion into which the insertion portion is inserted and removed. A connecting part structure for furniture in which a tongue piece having a convex part protruding inward is provided in an inward elastically deformable manner, and an engaging part that engages with the convex part in a connected state is formed on the inserted part It came to invent.

  Thus, when the insertion portion at the upper end of the lower column portion is inserted into the insertion portion at the lower end of the upper column portion, the tongue is elastically deformed inward, thereby allowing the convex portion to be inserted. In addition, it is configured to facilitate the connection between the two and to prevent detachment after the connection.

  However, in such a connecting portion structure for furniture, only the base end portion of the tongue piece provided on the column portion is coupled to the general portion in order to allow elastic deformation inward. For this reason, when resin-molding the support | pillar part which has such a tongue piece, at the time of solidification, the tongue piece was easy to incline inside by shrinkage | contraction of resin etc., and there existed a possibility of falling down.

  Thereby, there is a possibility that the engagement state of the convex portion provided on the tongue piece to the engaging portion may be lowered. Therefore, a design that takes this into consideration is necessary, and labor has been required.

  This invention is made | formed in view of such a conventional subject, and it aims at providing the connection part structure for furniture which can eliminate the malfunction at the time of shaping | molding.

  In order to solve the above problems, the furniture connecting portion structure of the present invention has a structure in which an insertion portion formed on one side is inserted and connected to an insertion portion formed on the other side. A tongue piece having a convex portion projecting outward is provided on the wall surface on the portion side so as to be elastically deformable inward, and engages with the convex portion while the insertion portion is inserted into the insertion portion. In the furniture connecting portion structure in which the engaging portion is formed, the operation portion is set on the tongue piece, and the operation portion and the wall surface are connected to the operation piece while the pressing force is applied to the operation portion. While allowing the elastic deformation inward, the elastic deformation portion is provided so as to restore the tongue piece to the original position when the pressing force of the operation portion is released.

  That is, when a member having such an insertion portion is resin-molded, a force is applied in a direction in which the tongue piece connected to the wall surface on the insertion portion side is inclined inward due to shrinkage of the resin during solidification or the like. Can occur. However, the tongue piece is connected to the wall surface by an elastic deformation portion, and is supported by the elastic deformation portion, thereby preventing the tongue from falling in the tilt direction.

  An operation portion is set on the tongue piece. When the operation portion is pressed with a finger or the like, the tongue piece is elastically deformed inward and the convex portion is retracted inward.

  At this time, the elastic deformation portion connecting the operation portion to the wall surface allows the elastic deformation inward of the tongue piece in a state in which the pressing force is applied to the operation portion, while the pressing force of the operation portion When the is released, the tongue is restored to the original position. For this reason, compared with the case where the said tongue piece is not provided with the said elastic deformation part, an elastic force is raised.

  Further, in another furniture connecting portion structure, the insertion portion formed on one side is inserted and connected to the inserted portion formed on the other side, and is connected to the wall on the insertion portion side outward. A tongue piece having a projecting portion protruding to the inside is provided so as to be elastically deformable inward, and an engagement portion that engages with the projecting portion in a state in which the inserting portion is inserted is formed in the inserted portion. In the connecting portion structure for use, the tongue piece is provided with an operation portion wider than the continuous portion connected to the wall surface, and a pressure is applied to the operation portion between the operation portion and the wall surface. While allowing the elastic deformation inward of the tongue piece, the tongue piece is continuously provided with an elastic deformation portion that restores the tongue piece to the original position when the pressing force of the operation portion is released.

  That is, when a member having such an insertion portion is resin-molded, a force is applied in a direction in which the tongue piece connected to the wall surface on the insertion portion side is inclined inward due to shrinkage of the resin during solidification or the like. Can occur. However, the tongue piece is connected to the wall surface by an elastic deformation portion, and is supported by the elastic deformation portion, thereby preventing the tongue from falling in the tilt direction.

  The tongue piece is provided with an operation portion that is wider than the continuous portion continuously provided on the wall surface. When the operation portion is pressed with a finger or the like, the tongue piece is elastically inward. The convex portion is deformed and retracts inward.

  At this time, the elastic deformation portion connecting the operation portion to the wall surface allows the elastic deformation inward of the tongue piece in a state in which the pressing force is applied to the operation portion, while the pressing force of the operation portion When the is released, the tongue is restored to the original position. For this reason, compared with the case where the said tongue piece is not provided with the said elastic deformation part, an elastic force is raised.

  Furthermore, in another connecting part structure for furniture, the tongue piece is constituted by an extending part extending from the connecting part and the elliptical operating part provided continuously to the extending part, While providing a convex part in the said extension part, the said elastic deformation part was set on extension of this extension part.

  That is, the tongue piece is configured by an extending portion that extends from the continuous portion and an elliptical operation portion that is continuously connected to the extending portion, and the convex portion is provided on the extending portion. ing. For this reason, the operation part is easily operated by a finger, and elastic deformation at the time of pressing the operation part is easily performed as compared with the case where the operation part is provided on the connecting part side.

  And the said elastic deformation part is set on the extension of the said extension part. For this reason, the elastically deforming portion is provided at a position deviating from the extension line of the extending portion, and the pressing force applied to the operating portion acts as a torsional force on the elastically deforming portion. Cutting of the deformed portion can be prevented.

  As described above, in the furniture connecting portion structure of the present invention, when the member having such an insertion portion is molded with resin or the like, the insertion portion is caused by shrinkage of the resin or the like during solidification. Even when a force in a direction tilting inward is generated on the tongue piece connected to the side wall surface, the tongue piece can be supported by the elastic deformation portion connecting the tongue piece to the wall surface. it can. Thereby, the fall of the tongue piece in the tilt direction can be reliably prevented.

  Therefore, it is possible to prevent the state of engagement with the engaging portion from being lowered due to the convex portion provided on the tongue piece, and the design that takes into account this fall as in the conventional case where the tongue piece may fall is unnecessary. As a result, workability at the design stage is improved, and the degree of freedom in design can be improved.

  An operation portion is set on the tongue piece, and by pressing the operation portion with a finger or the like, the tongue piece is elastically deformed inward and the convex portion is retracted inward. Can do. Thereby, since the engagement state with the engaging part provided in the to-be-inserted part can be cancelled | released, the connection / disconnection operation | work with an insertion part and an to-be-inserted part can be performed easily.

  At this time, the elastic deformation portion connecting the operation portion to the wall surface allows the elastic deformation inward of the tongue piece in a state in which the pressing force is applied to the operation portion, while the pressing force of the operation portion When the is released, the tongue is restored to the original position. For this reason, the said tongue piece can raise an elastic force compared with the case where the said elastic deformation part is not provided.

  Further, in another furniture connecting part structure, when a member having such an insertion part is molded with resin or the like, it is continuously provided on the wall surface on the insertion part side due to shrinkage of the resin or the like during solidification. Even when a force is generated in the inclining direction on the formed tongue piece, the tongue piece can be supported by the elastic deformation portion that connects the tongue piece to the wall surface. Thereby, the fall of the tongue piece in the tilt direction can be reliably prevented.

  Therefore, similarly to the above, it is possible to prevent the engagement portion from being lowered by the convex portion provided on the tongue piece and to prevent the tongue piece from falling, as in the conventional case. This eliminates the need for the design, improves the workability at the design stage, and improves the degree of freedom in design.

  The tongue piece is provided with an operation portion that is wider than the continuous portion continuously provided on the wall surface, and the tongue piece is elastically deformed inward by pressing the operation portion with a finger or the like. And the convex portion can be retracted inward. Thereby, the engagement state with the engaging part provided in the insertion part can be easily released, and the connection / disconnection operation between the insertion part and the insertion part can be easily performed.

  At this time, the elastic deformation portion connecting the operation portion to the wall surface allows the elastic deformation inward of the tongue piece in a state in which the pressing force is applied to the operation portion, while the pressing force of the operation portion When the is released, the tongue is restored to the original position. For this reason, the said tongue piece can raise an elastic force compared with the case where the said elastic deformation part is not provided.

  Furthermore, in another connecting part structure for furniture, the tongue piece includes an extending part that extends from the connecting part and an elliptical operation part that is connected to the extending part, and the extending part By providing a convex part on the part, the operation part can be easily operated by a finger, and the elastic deformation at the time of pressing the operation part as compared with the case where the operation part is provided on the connecting part side. Can be easily performed.

  And since the said elastic deformation part is set on the extension of the said extension part, this elastic deformation part is provided in the position deviated from the extension line of the said extension part, and the pressing force applied to the operation part is Compared to the case where the elastic deformation portion acts as a torsional force, it is possible to surely prevent the elastic deformation portion from being carelessly cut.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing an assembling chest 1 provided with a furniture connecting portion structure according to the present embodiment. The assembling chest 1 is used when accommodating small items.

  The assembly-type chest 1 includes a frame 11 forming a skeleton, and container-like drawers 13... That are put in and out of drawer spaces 12 formed in the frame 11. As shown in FIG. 2, 11 is comprised by the three frame structural members 14, ... connected up and down, and the top plate 15 attached on the uppermost frame structural member 14. As shown in FIG.

  The frame component member 14 includes a frame-shaped shelf portion 21 that supports the drawer 13 and support columns 22,... Provided at four corners of the shelf portion 21. 22 and so on are integrally formed of synthetic resin.

  As shown in FIG. 3, the support column 22 is formed in a hollow shape and has a rectangular cross section. An insertion portion 31 is set at the upper end portion of the column portion 22, and a step portion is formed on the circumferential surface of the column portion 22 by reducing the outer diameter of the upper end portion where the insertion portion 31 is set. 32 is formed. Further, the lower end portion of the column portion 22 formed integrally with the shelf portion 21 constitutes an insertion portion 33 into which the insertion portion 31 in the column portion 22 of the frame constituent member 14 arranged in the lower stage is inserted. Yes. The inserted portion 33 has an inner diameter dimension that allows the insertion portion 31 to be easily inserted and removed, and is configured so that the lower end 34 abuts on the step portion 32 in the lower column portion 22 to restrict the amount of insertion. Has been.

  The inner wall surface 41 of the support column 22 is provided with slits 42 and 42 facing each other at a position lower than the upper end of the insertion portion 31, and a tongue piece 43 is formed between the slits 42 and 42. ing. The tongue piece 43 has an upper end continuous to the inner side surface 41 and is configured to be elastically deformable inward and outward of the insertion portion 31 around the continuous portion 45.

  A rectangular extending portion 51 extends downward from the continuous portion 45, and a convex portion 52 that protrudes outward from the insertion portion 31 is integrally formed with the extending portion 51. ing. The convex portion 52 has a rectangular shape, and a lower edge is cut and raised vertically to form a locking step portion 53. Further, the convex portion 52 is formed so that the protruding amount decreases as it goes upward, and an inclined surface 54 is formed. Thereby, it forms so that the insertion to the said to-be-inserted part 33 can be performed smoothly by slidingly contacting the lower edge of the said to-be-inserted part 33. As shown in FIG.

  In the lower part of the extension part 51, an operation part 61 wider than the extension part 45 and the extension part 51 is continuously provided, and the operation part 61 is formed in a region below the insertion part 31. Has been. The operation portion 61 is formed in a horizontally long elliptical shape and is configured to be pressed with a thumb.

  The operating portion 61 allows elastic deformation to the inside of the tongue piece 43 in a state where a pressing force is applied, and elastically deforms the tongue piece 43 to the original position when the pressing force is released. The lower end of the portion 65 is connected to the general portion 66 of the inner wall surface 41 of the support column 22 on the insertion portion 31 side, and the elastic deformation portion 65 is an extension of the center line C of the extension portion 51. Is provided.

  The inner wall surface 41 of the inserted portion 33 formed at the lower end of the column portion 22 (the same as the inner wall surface 41 of the lower column portion 22 is assigned to the inner wall surface 41 of the column 22 because it is the inner wall surface 41 of the column 22). With the insertion portion 31 inserted, an engagement portion 71 is formed in which the convex portion 52 of the tongue piece 43 is inserted and engaged. In addition, you may comprise this engaging part 71 by the recessed part which the said convex part 52 engages.

  The engaging portion 71 is formed in a rectangular shape that fits the convex portion 52, and the lower opening edge of the engaging portion 71 abuts on the locking step portion 53 of the inserted convex portion 52, thereby preventing the engagement portion 71 from coming off. A contact portion 75 is formed.

  On the other hand, the top plate 15 shown in FIGS. 1 and 2 is also provided with inserted portions 33 having the same configuration as described above at the four corners, and the column portions 22 in the uppermost frame constituent member 14. And can be detachably coupled to each other (not shown).

  In the present embodiment having the above-described configuration, when the supporting column portion 22 having such an insertion portion 31 is resin-molded, the inner wall surface 41 on the insertion portion 31 side is caused by shrinkage of the resin during solidification. A force may be generated in the direction in which the tongue pieces 43 provided in a line are inclined inward. However, the tongue piece 43 is connected to the inner wall surface 41 by an integrally formed elastic deformation portion 65, and is supported by the elastic deformation portion 65 to prevent the tongue piece 43 from falling in the tilt direction.

  As described above, even when a force is generated in the direction in which the tongue piece 43 is inclined inward, the tongue piece 41 can be supported by the elastic deformation portion 56. Thereby, the fall of the tongue piece 43 in the tilt direction can be reliably prevented.

  Therefore, it is possible to prevent the engagement portion 71 from being lowered by the convex portion 52 provided on the tongue piece 41, and the tongue piece can fall down as in the prior art. Is not necessary, the workability at the design stage is improved, and the degree of freedom in design can be improved.

  The tongue piece 43 is provided with an operation part 61 wider than the continuous part 45 and the extension part 51 connected to the inner wall surface 41, and the operation part 61 is pressed with a finger or the like. Thus, the tongue piece 43 can be elastically deformed inward, and the convex portion 52 can be retracted inward. Thereby, since the engagement state with the engaging part 71 provided in the insertion part 33 can be cancelled | released, the connection / disconnection operation | work with the insertion part 31 and the insertion part 33 can be performed easily.

  At this time, the elastic deformation portion 65 connecting the operation portion 61 to the inner wall surface 41 allows elastic deformation inward of the tongue piece 43 in a state in which a pressing force is applied to the operation portion 61. When the pressing force of the operation unit 61 is released, the tongue piece 43 is restored to the original position. For this reason, the tongue piece 43 can increase the elastic force as compared with the case where the elastic deformation portion 65 is not provided.

  Further, the tongue piece 43 is constituted by an extending part 51 extending from the connecting part 45 and an elliptical operation part 61 provided continuously to the extending part 51. Providing the convex portion 52 facilitates the operation of the operation portion 61 by a finger, and the tongue piece when the operation portion 61 is pressed as compared with the case where the operation portion 61 is provided on the continuous portion 45 side. The elastic deformation of 43 can be easily performed.

  And since the said elastic deformation part 65 was set on extension of the center line C of the said extension part 51, this elastic deformation part 65 is provided in the position which deviated from the center line C of the said extension part 51, and the operation part 61 is provided. Compared with a case where the pressing force applied to the elastic deformation portion 65 acts as a twisting force on the elastic deformation portion 65, it is possible to reliably prevent the elastic deformation portion 65 from being carelessly cut.

  In the present embodiment, the case where the extended portion 51 of the tongue piece 43 is provided below the extended portion 51 and the operation portion 61 wider than the extended portion 51 is described as an example. However, the present invention is not limited to this, and the operation portion 61 having a width less than the width of the connecting portion 45 and the extending portion 51 may be set on the tongue piece 43.

It is a perspective view which shows one embodiment of this invention. It is a disassembled perspective view of the same embodiment. It is a principal part enlarged view which shows the same embodiment.

Explanation of symbols

31 Insertion Part 33 Insertion Part 41 Inner Wall Surface 43 Tongue Piece 45 Consecutive Part 51 Extension Part 52 Convex Part 61 Operation Part 65 Elastic Deformation Part 66 General Part 71 Engagement Part

Claims (1)

The insertion part formed on one side is connected to the insertion part formed on the other side and connected, and a tongue piece having a protruding part protruding outward is provided on the wall surface on the insertion part side. In the furniture connecting portion structure in which an engaging portion that engages with the convex portion in a state in which the inserting portion is inserted is formed in the inserted portion, while being elastically deformable.
An operating portion is set on the tongue, and the operating portion and the wall surface are allowed to be elastically deformed inward of the tongue while a pressing force is applied to the operating portion. A furniture connecting portion structure characterized in that it is continuously provided with an elastic deformation portion that restores the tongue piece to its original position when the pressing force is released.

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