JP2008163963A - Leg portion mounting structure and table using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a leg portion mounting structure capable of easily mounting/demounting a leg portion in spite of pressing the leg portion into a recess of a mounting portion. <P>SOLUTION: The mounting structure S comprises a through-hole 133a provided in the ceiling of the recess 133 of the mounting portion 130 in the vertical direction, a screw hole 211 provided in the front end face of the first leg portion 210 in the vertical direction, a communication hole 233 provided in the ceiling of a thick portion 230 in communication with the screw hole 211, and a screw portion 300 inserted into the through-hole 133a through the upper face side of the mounting portion 130 and threaded to the screw hole 211 of the first leg portion 210 inserted into the recess 133. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a structure for attaching a leg portion to an attachment portion such as a top plate portion of a table, and a table using the same.

  Conventionally, as a table used for outdoor or the like, there are a table whose leg is foldably attached to the top plate, and a table whose leg is press-fitted into a recess of the mounting portion of the top plate. . In addition, Patent Documents 1 and 2 describe the structure for attaching the leg mounting part to the recess.

Japanese Utility Model Publication No. 57-159749 JP-A-11-244051

  In the former, the leg portion is not projected from the end portion of the top plate portion in a state where the leg portion is folded along the top plate portion. For this reason, there is an essential drawback that the length of the leg portion depends on the size of the top plate portion.

  On the other hand, the latter does not have the disadvantage as the former, but requires a large force when the leg is press-fitted and removed from the recess. That is, the latter has another drawback that it is difficult to attach or remove the legs.

  The present invention was devised in view of the above circumstances, and the object thereof is to easily attach or remove the leg portion even though the leg portion is press-fitted into the concave portion of the attachment portion. An object of the present invention is to provide a leg mounting structure and a table having the same.

  In order to solve the above-described problems, the leg mounting structure according to the present invention has a leg mounting structure in which the tip of the leg is press-fitted into a recess provided on the mounting portion toward the one surface. A through hole provided in the recess toward the press-fitting direction of the leg, and a screw hole provided in the tip end surface of the tip of the leg toward the press-fitting direction; A screw portion that is inserted into the through-hole from the other surface side of the attachment portion and is screwed into the screw hole portion of the leg portion that is inserted into the concave portion.

  In this manner, the screw portion is screwed into the screw hole portion of the leg portion inserted into the recess portion through the through hole of the recess portion of the attachment portion. For this reason, by rotating the threaded portion, the tip of the leg can be advanced or moved backward in the recess, and the degree of press-fitting of the tip of the leg into the recess can be improved or decreased. .

  It is preferable that a resin-made press-fitting portion that is press-fitted into the concave portion is provided at a distal end portion of the leg portion. In this case, it becomes easy to attach or remove the leg portion to the concave portion.

  It is preferable that a slit directed in the axial direction is provided on the outer peripheral surface of the thick insertion portion. By providing the slit in the thick insertion portion in this way, the friction coefficient between the thick insertion portion and the concave portion can be reduced, so that the leg portion can be easily attached to or removed from the concave portion.

  The table of the present invention is a table having the mounting structure of the above-mentioned leg portion, and has a top plate portion provided with the mounting portion, and the top plate portion is in a state of being detached from the mounting portion. A holding part for holding the leg part in a detachable manner is provided.

  A table having high portability can be obtained by attaching the leg portion thus removed to a holding portion provided on the top plate portion.

  In the case of the leg mounting structure of the present invention, the screw portion is screwed into the screw hole portion of the leg portion inserted into the recess portion through the mounting portion and the through hole of the recess portion, so that the screw portion is rotated. If it does, the front-end | tip part of the said leg part will advance or reverse in the said recessed part. As a result, the degree of press-fitting of the tip of the leg into the recess is improved or lowered, so that even if the tip of the leg is press-fitted into the recess, it can be easily attached or detached.

  Hereinafter, a table using a leg mounting structure according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a view showing a table using a leg mounting structure according to an embodiment of the present invention, in which (a) is a front view of the table, (b) is a side view of the table, and FIG. (a) is a plan view of the table, (b) is a bottom view of the table, FIG. 3 is an AA enlarged sectional view shown in FIG. 2, FIG. 4 is an exploded perspective view of the table, and FIG. The enlarged front view of a leg part, FIG. 6 is a bottom view which shows the state which attached the leg part of the table to the holding | maintenance part of a top-plate part, FIG. 7 is a front view which shows the example of a design change of the table.

  The table shown here includes a top plate portion 100 provided with four attachment portions 130 at four corners, four leg portions 200, and four attachment structures S for detachably attaching the leg portions 200 to the attachment portion 130, respectively. It has. This will be described in detail below.

  As shown in FIGS. 1 to 4, the top plate 100 includes a top plate main body 110 that is a substantially rectangular plate-shaped body, and four guard portions that are attached to four sides of the top plate main body 110. 120, four attachment portions 130 attached between the guard portions 120, and four holding portions 140 provided on the lower surface of the top plate main body 110.

  The guard part 120 is a hollow stainless steel product that is substantially L-shaped downward, and includes a horizontal part 121 and a vertical part 122 that is orthogonal to the horizontal part 121.

  The horizontal portion 121 has an open end surface in the width direction and both end surfaces in the length direction. The side portion of the top plate main body 110 is fitted into the tip of the horizontal portion 121.

  On the other hand, both ends of the vertical portion 122 in the length direction are open. The fitting portions 132 of the two attachment portions 130 are fitted to both ends of the vertical portion 122, respectively.

  The attachment part 130 includes a fan-shaped main body part 131, two rectangular fitting parts 132 provided at both ends of the main body part 131, a cylindrical concave part 133 provided at the top of the main body part 131, and This is a resin molded product having a fixing portion 134 provided on the outer peripheral surface of the recess 133.

  One fitting portion 132 is fitted to one end portion of the vertical portion 122 of the guard portion 120 and is screwed to the lower surface of the vertical portion 122. The other fitting portion 132 is fitted to the other end portion of the vertical portion 122 of another guard portion 120 arranged at a right angle to the guard portion 120 and is screwed to the lower surface of the vertical portion 122.

  In the main body 131, one fitting portion 132 is fitted to one end portion of the vertical portion 122 of the guard portion 120, and the other fitting portion 132 is fitted to the other end portion of the vertical portion 122 of another guard portion 120. , Located between the two guard portions 120.

  The fixing part 134 has a substantially fan-like plate-like fixing part main body 134a and two fixing arms 134b provided at both ends of the fixing part main body 134a. One fixed arm 134 b is screwed to the lower surface of the vertical portion 122 of the guard portion 120. The other fixed arm 134 b is screwed to the lower surface of the vertical portion 122 of another guard portion 120.

  The opening of the recess 133 is directed downward (that is, one surface side of the top plate 100). A thick insertion portion 230 of the leg portion 200 is press-fitted into the concave portion 133.

  As shown in FIGS. 2B and 6, the holding portion 140 includes a base portion 141 and two holding portion main bodies 142 that are provided on the base portion 141 and have a substantially circular arc shape in sectional view. The first leg 210 of the leg 200 is fitted to one holding part main body 142, and the second leg 220 of the leg 200 is fitted to the other holding part main body 142.

  As shown in FIGS. 1 to 6, the leg portion 200 includes a first leg portion 210, a second leg portion 210 attached to the rear end portion of the first leg portion 210, and a first leg portion. And a thick insertion portion 230 provided at the tip of 210.

  The first leg 210 is a stainless steel pole having an open bottom surface. An engagement hole 212 is provided on the outer peripheral surface of the rear end portion of the first leg 210.

  As shown in FIG. 3 and FIG. 5, the thick insertion portion 230 is a resin molded product having a substantially concave shape in a cross-sectional view that covers the tip portion of the first leg portion 210. The outer wall surface of the thickened portion 230 is a tapered surface that expands from the distal end to the proximal end. On the outer wall surface of the thick insertion portion 230, four first slits 231 penetrating in the thickness direction are provided at intervals of 90 °. In addition, a plurality of second slits 232 having a depth dimension smaller than that of the first slit 231 are provided between the four first slits 231 on the outer wall surface of the thick insertion portion 230. The first and second slits 231 and 232 reduce the contact area when the thick insertion portion 230 is press-fitted into the recess 133, thereby reducing the friction coefficient between them.

  The second leg 220 is a stainless steel pole having a narrow front end inserted into the rear end of the first leg 220 and a wide rear end continuous to the front end. . On the outer peripheral surface of the distal end portion of the second leg portion 220, an engagement convex portion 221 that engages with the engagement hole portion 212 of the first leg portion 220 is provided so as to be able to enter and exit. This engagement convex part 221 is urged | biased in the protrusion direction by the urging means which is not shown in figure.

  In other words, the rear end portion of the first leg portion 210 is moved to the second leg portion 220 in a state where the engaging convex portion 221 is pushed into the second leg portion 210 against the urging force of the urging means. Insert into. Thereafter, when the positions of the engaging convex portion 221 and the engaging hole portion 212 coincide with each other, the engaging convex portion 221 protrudes from the outer peripheral surface of the second leg portion 220 by the biasing force of the biasing means. Is engaged.

  As shown in FIG. 3, the attachment structure S includes a through-hole 133 a provided in the ceiling portion of the recess 133 of the attachment portion 130 in the vertical direction (that is, the press-fitting direction of the first leg portion 210 of the leg portion 200). A screw hole 211 provided in the top end surface of the first leg 210 in the vertical direction, a communication hole 233 provided in the ceiling portion of the thick insertion portion 230 so as to communicate with the screw hole 211, The screw part 300 inserted into the through hole 133a and the communication hole 233 from the upper surface side of the attachment part 130 (that is, the other surface side of the attachment part 130) and screwed into the screw hole part 211 of the first leg part 210. Have.

  The through holes 133a, the screw hole portions 211, and the communication holes 233 have substantially the same diameter and are arranged concentrically.

  The screw part 300 includes a screw part body 310, an operation part 320 attached to the head part of the screw part body 310, and a washer part 330 attached to the screw part body 310.

  The screw portion main body 310 is inserted into the through hole 133a of the concave portion 133 of the mounting portion 130 from the upper surface side (that is, the other surface side) of the mounting portion 130, and a portion located in the concave portion 133 can be rotated by the washer portion 330. It is fixed to.

  The operation part 320 is a cup body having a concave shape that is substantially downward in a sectional view. The outer peripheral edge of the operation unit 320 is provided with unevenness for easy operation.

  Hereinafter, a procedure for attaching the leg 210 of the table having such a configuration will be described. First, the first leg portion 210 of the leg portion 200 is removed from one holding portion main body 142 of the holding portion 140.

  Thereafter, the distal end portion of the first leg portion 210 and the thick insertion portion 230 are inserted into the concave portion 133 of the attachment portion 130 and press-fitted. At the same time, the screw portion main body 310 of the screw portion 300 is inserted into the communication hole 233 of the thick insertion portion 230 and screwed into the screw hole portion 211 of the first leg portion 210.

  Then, the operation part 320 is operated and the screw part main body 310 is rotated in one direction. Then, the screw hole portion 211 advances upward along the screw portion main body 310, and the distal end portion of the first leg portion 210 and the thick insertion portion 230 advance upward in the recess 133. Thereby, the press-fit condition to the recessed part 133 of the thick insertion part 230 improves.

  Thereafter, the second leg portion 220 is removed from the other holding portion main body 142 of the holding portion 140. Then, the front end portion of the second leg portion 220 is inserted into the rear end portion of the first leg portion 210 while the engagement convex portion 221 of the second leg portion 220 is pressed down. After that, when the positions of the engaging protrusions 221 of the second leg 220 and the engaging holes 212 of the first leg 210 are matched, the engaging protrusions 221 are moved by the urging force of the urging means. The engagement hole 212 is engaged. In this way, the leg portion 210 is attached to the attachment portion 130.

  The procedure for removing the table leg 210 will be described below. First, the second leg 220 is pulled out from the first leg 210 while pressing down the engaging convex part 221 of the second leg 220. Then, the second leg portion 220 is fitted to the other holding portion main body 142 of the holding portion 140.

  Thereafter, the operating portion 320 is operated to rotate the screw portion main body 310 in the other direction (that is, opposite to one direction). Then, the screw hole portion 211 moves backward along the screw portion main body 310, and the distal end portion of the first leg portion 210 and the thick insertion portion 230 move backward in the recess 133. As a result, the degree of press-fitting of the thick insertion portion 230 into the concave portion 133 is reduced to such an extent that the first leg portion 210 can be easily removed from the concave portion 133.

  Thereafter, the first leg 210 is pulled out from the recess 133. Then, the first leg portion 210 is fitted to one holding portion main body 142 of the holding portion 140.

  In the case of such a table, the screw portion main body 310 of the screw portion 300 of the attachment structure S is sequentially inserted into the through hole 133a of the concave portion 133 of the attachment portion 130 and the communication hole 233 of the thick insertion portion 230 of the leg portion 200. Screwed into the screw hole 211 of the first leg 210 of the part 200. For this reason, by rotating the screw part 300, the thick insertion part 230 of the leg part 200 moves forward or backward in the recess 133 of the attachment part 130. Therefore, unlike the conventional example, a large force is not required to attach or remove the first leg 210 of the leg 200 to or from the recess 133 of the attaching part 130, and the first leg 210 can be easily attached or detached. .

  Moreover, the first and second slits 231 and 232 are provided in the thick insertion portion 230 to reduce the friction coefficient between the thick insertion portion 230 and the concave portion 133. That is, the force required to attach or remove the first leg 210 to or from the recess 133 of the attachment portion 130 can be reduced. Therefore, also in this point, the first leg 210 can be easily attached or detached.

  In addition, about the top-plate part 100, what is necessary is just plate shape, and design advance is possible arbitrarily. For example, as shown in FIG. 7, it can be a rectangle, or it can be a circle or a triangle.

  The attachment portion 130 is attached between the two guard portions 120, but is not limited thereto. For example, the top plate portion main body 110 of the top plate portion 100 may be provided with a notch and may be fitted into the notch, or may be provided integrally with the top plate portion main body 110.

  Moreover, about the shape of the attaching part 130, the recessed part in which a leg part is press-fit at least should just be provided.

  Whether or not the holding unit 140 is provided is arbitrary. The shape of the holding portion 140 is not limited to the above embodiment, and the design can be arbitrarily changed as long as a leg portion described later can be held.

  About the leg part 200, it is a leg part which can be press-fitted in the recessed part of an attachment part, Comprising: The screw hole part should just be provided in the front end surface. That is, whether or not the thick insertion portion 230 is provided is arbitrary, and the distal end portion of the leg portion may be directly press-fitted into the concave portion.

  As for the shape of the thick insertion portion 230, any shape may be used as long as it can be press-fitted into the concave portion of the mounting portion.

  In the said Example, although the mounting structure S demonstrated as what is provided in a table, it is not limited to this. For example, it can be set as the structure which attaches a leg part to the attachment part provided in the chair. In addition, a leg part here is the concept containing the support | pillar etc. of assembly structures, such as a shelf, and can be used as a structure which attaches a leg part to the attachment part of the said structure.

It is a figure which shows the table provided with the attachment structure of the leg part concerning embodiment of this invention, Comprising: (a) is a front view of the table, (b) is a side view of the table. (a) is a plan view of the table, and (b) is a bottom view of the table. It is an AA expanded sectional view shown in FIG. It is a disassembled perspective view of the table. An enlarged front view of the legs of the table, It is a bottom view which shows the state which attached the leg part of the table to the holding | maintenance part of the top-plate part. Front view showing a design change example of the table

Explanation of symbols

130 mounting portion 133 concave portion 140 holding portion 200 leg portion S mounting structure 133a through hole 211 screw hole portion 300 screw portion

Claims (4)

In the mounting structure of the leg portion that is attached by press-fitting the tip end portion of the leg portion into the concave portion provided toward the one surface side of the mounting portion,
A through-hole provided in the recess toward the press-fitting direction of the leg,
A screw hole portion provided in the distal end surface of the distal end portion of the leg portion in the press-fitting direction;
A leg mounting structure comprising: a screw portion that is inserted into the through hole from the other surface side of the mounting portion and screwed into the screw hole portion of the leg portion inserted into the recess. In the mounting structure of the leg part of Claim 1,
The leg mounting structure is characterized in that a resin press-fitting portion that is press-fitted into the concave portion is provided at a distal end portion of the leg portion. In the mounting structure of the leg part of Claim 1,
A leg mounting structure, wherein a slit facing in the axial direction is provided on an outer peripheral surface of the thick insertion portion. A table comprising the leg mounting structure according to claim 1, 2 or 3,
A top plate provided with the mounting portion;
The table, wherein the top plate portion is provided with a holding portion for detachably holding the leg portion detached from the attachment portion.

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