JP2012090752A - Leg body for furniture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a leg body for furniture which firmly connects the upper end of a front leg to a rear leg by simplifying the structures of the front leg and the rear leg.SOLUTION: An enlarged width part 6a is formed at the upper end of the front leg 6 in a way that it is made wider than a lower part and is allowed to come into surface contact with an outer side part of the rear leg 5 by horizontally compressing the upper end so as to be plastically deformed. The enlarged width part 6a is connected to the outer side part of a vertically middle part in the rear leg 5. Besides, the front surface of the rear leg 5 and the inner side part of the front leg 6 are mutually connected by a reinforcing member 9.

Description

  The present invention is a furniture leg in which, for example, a top plate is folded by rotating to a non-use position facing in the vertical direction, and a plurality of tables (including desks) are stacked in the front-rear direction, that is, nesting can be stored About the body.

  In a table or the like that can fold such a top plate, its left and right legs are composed of an up-and-down rear leg that faces diagonally forward and upward and a front leg that tilts forward and downward. By fixing it to the upper end or lower end of the leg so that it is positioned outside the rear leg, the distance between the left and right front legs is set to be larger than that between the left and right rear legs, and multiple tables, etc. There is one that can be stored in a nested manner from the front-rear direction with the top plate folded (see, for example, Patent Documents 1 to 3).

JP 2006-102012 A JP 2007-260286 A JP 2007-301302 A

  In the table leg described in Patent Document 1, since the upper end of the front leg is simply fixed to the outer surface of the upper end of the rear leg with a screw, if the screw loosens, There is a risk of wobbling.

  The leg of the table described in Patent Document 2 is provided with a concave portion in the vertical direction on the outer surface of the rear leg, and the upper end portion of the front leg is fitted and screwed into the concave portion. However, there is little risk that the legs will wobble immediately. However, since it is necessary to provide a recess in the rear leg, or to fix a fitting member that can be fitted in the recess to the upper end of the front leg, the structure of the leg becomes complicated and the manufacturing cost increases. .

  In the desk leg described in Patent Document 3, a plate-like fixing member in which the rear end portion of the front leg is fitted to the lower end portion of the rear leg from the outside and is screwed to the fitting portion from the inside. Therefore, since only the rear leg is sandwiched, the strength of attachment to the rear leg of the front leg is small, and a load such as a top plate is applied to the attachment portion as a large bending moment, which is disadvantageous in terms of strength.

  Moreover, in the legs of Patent Documents 1 to 3, since the connecting parts and screws between the front legs and the rear legs are exposed to the outside, the appearance of the legs is poor.

  The present invention has been made paying attention to such problems, and provides a furniture leg that simplifies the structure of the leg and allows the upper end of the front leg to be firmly coupled to the rear leg. A second object is to provide a furniture leg that can improve the appearance of the leg by concealing the joint between the rear leg and the front leg. .

In order to solve the above-mentioned problem, the furniture leg of the present invention comprises:
In furniture legs consisting of a rear leg facing up and down, and a front leg facing diagonally forward and lower with the upper end fixed to the middle part in the up and down direction,
By expanding and compressing this part in the left-right direction at the upper end of the front leg, the widened part is wider than the lower part and can be in surface contact with the outer or inner part of the rear leg. The widened portion is coupled to the outer or inner portion of the middle portion of the rear leg in the vertical direction, and the front surface of the rear leg and the inner or outer portion of the front leg are coupled to each other by a reinforcing member. It is characterized by that.
According to this feature, it is not necessary to perform any special processing or the like on the rear leg, and a widened portion having a width that is wider than the lower portion is simply plastically deformed by compression at the upper end of the front leg. Since the widened portion is merely brought into surface contact with the outer portion of the rear leg and joined, the structure of the leg is simplified and the cost can be reduced. In addition, the contact area and coupling area of the widened portion with respect to the rear leg are increased, and the front surface of the rear leg and the inner or outer portion of the front leg are coupled to each other by the reinforcing member. Bond strength increases.

The furniture leg of the present invention comprises:
The rear leg and the front leg are formed in a rectangular tube shape, and the widened portion of the front leg is formed in a flat plate shape that gradually becomes smaller as the left-right dimension goes toward the rear end.
According to this feature, the wide portion of the front leg can be brought into surface contact with the rear leg over a wide area and can be coupled over a wide range, so that the coupling strength between the rear leg and the front leg is increased.

The furniture leg of the present invention comprises:
The connecting portion of the rear leg, the front leg, and the reinforcing member is covered with a cover member.
According to this feature, the joint between the rear leg, the front leg, and the reinforcing member is concealed by the cover member and is not exposed to the outside, so that the appearance of the leg body is improved.

The furniture leg of the present invention comprises:
The cover member is characterized in that the left and right widths of the portion covering the widened portion are gradually reduced toward the rear end.
According to this feature, the portion of the cover member that covers the widened portion does not protrude greatly outward, so that the risk of hitting the portion is small and the appearance is also improved.

The furniture leg of the present invention comprises:
The inner surface of the portion of the cover member that covers the reinforcing member from the inside is an inclined surface that gradually slopes outward from the rear end toward the front end.
According to this feature, for example, when storing a plurality of foldable tables in the front-rear direction, the left and right rear legs of the front table are connected to the inner side surfaces of the left and right cover members of the rear table. Since the possibility of contact is reduced, the rear legs and the cover member are less likely to be damaged, and the front and rear tables can be brought close to each other for efficient nesting.

The furniture leg of the present invention comprises:
The cover member has a left and right divided structure of a first cover member that covers the widened portion of the front leg and a second cover member that covers the reinforcing member, and the opposing end surfaces of the first cover member and the second cover member One of these is provided with an engaging groove, and the other is provided with a locking claw that engages with the engaging groove.
According to this feature, the first cover member and the second cover member can be attached to the connecting portion of the rear leg, the front leg, and the reinforcing member easily and connected to each other from the left-right direction.

It is the perspective view which looked at the folding table to which the Example of the leg structure of this invention was applied from diagonally forward. It is the expansion perspective view which looked at the leg of the present invention from the outside. Similarly, it is the expansion perspective view seen from the inner side. It is an expanded transverse end view of the joint part of a back leg and a front leg. FIG. 5 is an enlarged longitudinal end view taken along line VV in FIG. 1.

  EMBODIMENT OF THE INVENTION The form for implementing the leg of the furniture which concerns on this invention is demonstrated below based on an Example.

  FIG. 1 is a perspective view of a folding table to which the present invention is applied as viewed obliquely from the front. The folding table 1 includes a pair of left and right legs 3 in which opposed surfaces of upper end portions are connected by a horizontal connecting rod 2; 3 and a bracket (not shown) rotatably attached to the upper ends of both legs 3 can be rotated between a horizontal use position and a folding position standing on the rear side of the legs 3. And a top plate 4 attached in this manner.

  As shown in FIGS. 2 and 3 in an enlarged manner, the left and right legs 3 and 3 (only the left leg is shown for left-right symmetry) are inclined rearwardly in the vertical direction. 5 and a front leg 6 that faces obliquely forward and downward with an upper end (rear end) fixed to the outer surface of the middle portion in the vertical direction so as to form a substantially “person” shape in a side view. Casters 7 are attached to the lower ends of the legs 5 and the front legs 6. The rear leg 5 and the front leg 6 are formed in a rectangular tube shape from a metal that can be welded to each other, for example, a metal material such as iron.

  At the upper end portion of the front leg 6, a widened portion 6 a having a wider vertical width than the lower portion is formed by compressing the portion in the left-right direction with a press or the like to cause plastic deformation. The widened portion 6a is formed in a flat plate shape in which the left-right dimension (thickness) gradually decreases toward the rear end, and the inner side surface (inner side portion) thereof is the outer side surface (outer side portion) of the rear leg 5. As a surface contact, it is a vertical surface. The concave portion 8 on the outer side surface of the widened portion 6a is a press mark by a press for reducing the thickness of the rear end portion and for making the inner side surface a vertical surface.

  The inner surface of the widened portion 6a is brought into contact with the outer surface of the intermediate portion in the vertical direction of the rear leg 5 and the peripheral edges of the contact portions are welded to the outer surface of the rear leg 5 so that the upper end of the front leg 6 is The parts are joined so as to form a “person” shape in a side view. In addition to welding the periphery of the contact portion, the portion where the recess 8 is formed may be fixed by spot welding or the like. In this way, the widened portion 6 a can be firmly coupled to the rear leg 5.

  In the joint portion between the rear leg 5 and the front leg 6, the front surface and the inner surface thereof are joined to each other by a reinforcing member 9 having a right-angled triangular shape in plan view, whose left and right dimensions are gradually reduced from the rear end toward the front end. (See FIG. 3). That is, by welding the rear end surface and the outer surface of the reinforcing member 9 to the front surface of the rear leg 5 and the inner surface of the front leg 6, respectively, the front surface and the inner surface are coupled to each other. A joint portion between the rear leg 5, the front leg 6, and the reinforcing member 9 is covered with a cover member 10 made of synthetic resin.

  As shown in FIGS. 2 to 5, the cover member 10 includes a first cover member 11 that covers the upper end portion including the widened portion 6 a of the front leg 6 from the outside, and a second cover that covers the reinforcing member 9 from the inside. A left and right divided structure with the member 12 is adopted.

  The first and second cover members 11 and 12 include side pieces 11a and 12a, upper pieces 11b and 12b, and lower pieces 11c and 12c, respectively. There is no. At the rear end of the first cover member 11, a short rear piece 11 d that covers the widened portion 6 a from the rear is continuously provided inward.

  As described above, when the left-right dimension of the widened portion 6a is a flat plate that gradually decreases toward the rear end, the side piece 11a of the first cover member 11 is gradually inwardly directed toward the rear end. The left and right widths of the portion covering the widened portion 6a of the first cover member 11 can be made gradually smaller toward the rear end. If it does in this way, since the part which covers the wide part 6a in the 1st cover member 11 does not protrude outside outward greatly, there is little possibility that an object will hit the part, and the appearance will also become good.

  The second cover member 12 is attached in contact with the front surface of the rear leg 5 and the inner side surface of the front leg 6 so as to cover the reinforcing member 9 from the inner side, and the inner side surface thereof, that is, the side piece 12a. Is gradually inclined outward from the rear end toward the front end. When the side pieces 12a are inclined in this way, the left and right rear legs 5 of the front table are placed on the left and right second cover members when the plurality of folding tables 1 are stored in the front-rear direction. Therefore, the rear leg 5 and the second cover member 12 are not easily damaged, and the front and rear tables can be brought close to each other and efficiently nested.

  As shown in FIGS. 3 and 5, two right and left locking claws 13 that are elastically deformable in the vertical direction are provided on the right edge of the front half of the upper piece 11 b and the lower piece 11 c in the first cover member 11. 13 is continuously provided so as to protrude inward. Further, on the inner surface of the left end of the upper piece 12b and the lower piece 12c in the second cover member 12, there are engagement grooves 14 that can be engaged with the respective locking claws 13, 13 of the first cover member 11. Two front and rear are formed.

  A positioning piece 15 protrudes obliquely downward from the lower end of the side piece 12a of the second cover member 12, and the inner surface of the front leg 6 is formed on the outer surface of the lower end portion of the positioning piece 15 as shown in FIG. A locking hook 17 having a downward saddle-like cross section that can be locked in an engagement hole 16 formed on a side surface is projected. In order to easily lock the locking hook 17 in the engaging hole 16, it is preferable that the positioning piece 15 can be elastically deformed in the thickness direction around the base end.

  In order to mount the first and second cover members 11, 12, first, the first cover member 11 is placed on the upper end portion including the widened portion 6 a of the front leg 6 from the outside.

  Next, the locking hook 17 of the positioning piece 15 in the second cover member 12 is engaged with the engagement hole 16 of the front leg 6, and the second cover member 12 is positioned in the longitudinal direction of the front leg 6. In this state, the second cover member 12 is placed on the reinforcing member 9 from the inside, and as shown in FIG. 5, the engagement grooves 14 provided in the upper piece 12b and the lower piece 12c of the second cover member 12 are formed in the engagement grooves 14. The locking claws 13 of the first cover member 11 are elastically engaged. As a result, the first cover member 11 and the second cover member 12 are connected to each other, and the rear leg 5, the front leg 6 and the reinforcing member 9 are joined by the first and second cover members 11 and 12. The part is covered.

  As described above, in the leg structure of the above embodiment, the rear leg 5 does not need to be subjected to any special processing or the like, and is simply wider at the upper end of the front leg 5 than the vertical width of the lower part. The widened portion 6a is formed by plastic deformation by compression, and the widened portion 6a is merely brought into surface contact with the outer surface of the rear leg 5 and joined by welding, so that the structure of the rear leg 5 and the front leg 6 is simple. The cost of the leg 3 is reduced.

  Further, the contact area and the welding area of the widened portion 6a with respect to the rear leg 5 are increased, and the front surface of the rear leg 5 and the inner surface of the front leg 6 are coupled to each other by the reinforcing member 9, so that the rear leg 5 The bond strength with the front leg 6 is increased.

  Furthermore, since the connection part and welding part of the rear leg 5, the front leg 6, and the reinforcement member 9 are concealed by the cover member 10, and are not exposed outside, the appearance of the leg 3 is improved.

  The cover member 10 has a left and right divided structure of the first cover member 11 and the second cover member 12, and is provided at the opposing portion between the upper pieces 11b and 12b and the lower pieces 11c and 12c. Since the first cover member 11 and the second cover member 12 can be connected by engaging the claw 13 and the engagement groove 14 with each other, the first and second cover members 11, 12 can be easily attached to the joint between the rear leg 5, the front leg 6, and the reinforcing member 9 from the left-right direction.

  In the embodiment, the widened portion 6 a of the front leg 6 is coupled to the outer side surface of the rear leg 5, but may be coupled to the inner side surface of the rear leg 5. At this time, the reinforcing member 9 is coupled to the front surface of the rear leg 5 and the outer surface of the front leg 6.

  In the above embodiment, the rear leg 5 and the front leg 6 are formed in a rectangular tube shape in order to increase the contact area between the joints. However, a circular pipe, an elliptic pipe, or the like may be used. it can. At this time, the side surface (side portion) facing the outer surface (outer portion) (or inner surface (inner portion)) of the rear leg 5 in the widened portion 6a is in surface contact with the rear leg such as a round pipe or an elliptical pipe. What is necessary is just to be a curved surface shape which can be performed.

  Although the embodiments of the present invention have been described with reference to the drawings, the specific configuration is not limited to these embodiments, and modifications and additions within the scope of the present invention are included in the present invention. It is.

  For example, the present invention is not limited to the folding table 1 as in the above-described embodiment, but can also be applied to a normal top plate fixed table or a leg such as a desk.

  Moreover, in the said Example, although the wide part 6a of the front leg 6 is made to contact | abut to the outer surface of the rear leg 5, and the periphery of each contact part is welded, it is couple | bonded by this welding means. For example, the widened portion 6a and the outer surface of the rear leg 5 may be coupled to each other by a screwing member such as a screw using the wide area of the widened portion 6a.

DESCRIPTION OF SYMBOLS 1 Folding table 2 Lateral connection rod 3 Leg body 4 Top plate 5 Rear leg 6 Front leg 8 Recess 9 Reinforcement member 10 Cover member 11 First cover member 12 Second cover member 13 Engagement claw 14 Engaging groove 15 Positioning piece 16 Engagement hole 17 Locking hook

Claims (6)

In furniture legs consisting of a rear leg facing up and down, and a front leg facing diagonally forward and lower with the upper end fixed to the middle part in the up and down direction,
By expanding and compressing this part in the left-right direction at the upper end of the front leg, the widened part is wider than the lower part and can be in surface contact with the outer or inner part of the rear leg. The widened portion is coupled to the outer or inner portion of the middle portion of the rear leg in the vertical direction, and the front surface of the rear leg and the inner or outer portion of the front leg are coupled to each other by a reinforcing member. Furniture legs characterized by   The leg of the furniture according to claim 1, wherein the rear leg and the front leg are formed in a rectangular tube shape, and the widened portion of the front leg is formed in a flat plate shape that gradually decreases in size in the left-right direction toward the rear end. .   The furniture leg according to claim 1 or 2, wherein a joint portion of the rear leg, the front leg, and the reinforcing member is covered with a cover member.   4. The furniture leg according to claim 3, wherein the width of the portion of the cover member covering the widened portion is gradually reduced toward the rear end.   The furniture leg according to claim 3 or 4, wherein an inner side surface of a portion of the cover member that covers the reinforcing member from the inside is an inclined surface that is gradually inclined outward from the rear end toward the front end. .   The cover member has a left and right divided structure of a first cover member that covers the widened portion of the front leg and a second cover member that covers the reinforcing member, and the opposing end surfaces of the first cover member and the second cover member The furniture leg according to any one of claims 3 to 5, wherein an engagement groove is provided in one of the two, and a locking claw that engages with the engagement groove is provided in the other.

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