JP2007236857A - Leg for desk - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide build-up legs for a desk capable of constituting a long-legged desk by using a short-legged desk such as a folding party desk as a top board. <P>SOLUTION: The build-up legs 10 for the desk is provided with a beam board part 20, and a pair of folding type long leg frames 40a and 40b raised/folded relative to the beam board part 20 with hinges 30a and 30b in the back-face both ends sides of the beam board part. Each long leg frames 40a (40b) has an engagement groove Y where a second projecting line part X<SB>2</SB>provided on the back face of the top board 55 of the folding party desk 50 is fitted and positions the top board 55, in its upper frame part D. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an assembling leg for a desk that can be used as a long leg desk for a short leg desk such as a folding banquet desk.

Conventionally, Japanese Unexamined Patent Application Publication No. 2002-65362 discloses a foldable table that selectively uses a short leg portion and a long leg portion folded on the back surface of the top plate. This is a short leg table that can be used while sitting on a tatami mat when the short leg portion is extended, and a long leg table that can be used while sitting on a chair when the long leg portion is extended.
JP 2002-65362 A

  However, since inns and hotels generally have short-legged desks such as folding banquet desks, the rate of use of the folding table as a short-legged desk is low, and a single leg has a short leg. And long legs are expensive to purchase a new foldable table.

  Accordingly, in view of the above problems, an object of the present invention is to provide a desk assembly leg that can constitute a long leg desk by using a short leg desk such as a folding banquet desk as a top plate.

  An assembly leg for a desk according to the present invention includes a beam plate portion, and a pair of foldable long leg frames that can be raised and lowered with respect to the beam plate portion with hinges on both sides of the back surface of the beam plate portion, The long leg frame has a second positioning part that engages with the first positioning part provided on the back surface of the top board of the folding short leg desk in the upper frame part.

  After the long leg frame of the desk assembly leg is set up on the floor with respect to the beam plate portion, a short leg desk with a short leg folded thereon is placed thereon, and the first positioning portion on the back surface of the top plate is placed. By engaging and combining with the second positioning part of the upper frame part of the long leg frame, the positional deviation of the short leg desk on the desk assembly leg can be eliminated, and it can be used as a long leg desk. Since it can be used simply by providing the first positioning part on a short leg desk such as an existing folding banquet desk, the cost can be reduced compared with the case of purchasing a long leg desk anew. Moreover, the desk assembly legs are foldable without a top plate, and are lightweight, compact and stackable.

  The first positioning portion can be a positioning convex portion, and the second positioning portion can be a positioning recess.

  It is desirable that the positioning convex portion is a first ridge portion arranged in the longitudinal direction of the top plate, and the positioning concave portion is a groove portion arranged in a direction perpendicular to the upper frame portion. Since it can be visually recognized from the outside that the first protrusion is engaged with the groove, the assembling work is facilitated.

  As for a convex part, it is desirable to have the 2nd protrusion part contact | abutted to the inner surface of an upper frame part. The second protrusions on the left and right sides of the top plate are in contact with the inner side surfaces of the left and right upper frame parts, and the folding movement of both long leg frames is completely prevented, so that the stability is increased.

  Moreover, it is desirable that the beam plate portion includes a latch for holding the folding long leg frame folded with respect to the beam plate portion. Since the foldable long leg frame does not open, it is easy to carry the desk assembly leg.

  A pair of left and right first foldable long leg frames that can be raised and lowered with respect to the beam plate portion with hinges at both ends of the first main surface of the beam plate portion, and a first main surface of the beam plate portion, If it is a desk assembly leg with a pair of left and right second folding long leg frames that can be raised and lowered with hinges at both ends of the opposite side surface, combine with two short leg desks Thus, a long leg desk with a wide desk width can be configured.

  In the desk assembly leg according to the present invention, the cost can be reduced because there is no top plate. The desk assembly legs are foldable without a top plate, and are lightweight, compact and stackable.

  Embodiments of the present invention will be described with reference to the accompanying drawings. 1A is a rear view showing a desk assembly leg according to an embodiment of the present invention, FIG. 1B is a left side view thereof, and FIG. 2A is a rear view showing a closed state of the desk assembly leg. FIG. 2 (B) is a left side view thereof, FIG. 3 is a plan view of the desk assembly leg, and FIG. 4 (A) is a bottom view showing a folding banquet desk used as a top plate of the desk assembly leg. 4B is a right side view thereof, FIG. 5A is a rear view showing a state in which the folding banquet desk is combined with the assembly leg for the desk, and FIG. 5B is a left side view thereof.

  The desk assembly leg 10 of this example is a pair of left and right foldable lengths that can be raised and lowered with respect to the beam plate part 20 with hinges 30a and 30b on both ends of the back side of the beam plate part 20 and the beam plate part 20. Leg frames 40a and 40b. The pair of foldable long leg frames 40a, 40b are opposed to each other and fall to the inside thereof. The beam plate portion 20 functions as a connecting plate for the pair of foldable long leg frames 40a and 40b. A latch bar that can be inserted into and removed from a hole h (h) formed in the long leg frame 40a (40b) in the reinforcing part 22a (22b) of the beam plate part 20 in order to maintain the closed state of the long leg frame 40a (40b). 24a (24b) is provided. The long leg frame 40a (40b) includes a lower frame part A installed on a floor such as a tatami mat, a front leg part B to which a beam plate part 20 and a hinge 30a (30b) are attached, and a rear leg having a hole h (h). It is a rectangular frame including a part C and an upper frame part D having an engagement groove Y. The engagement groove Y is arranged in the direction perpendicular to the upper frame portion D.

On the other hand, the top plate 55 of the foldable banquet desk 50 shown in FIG. 4 includes a pair of left and right foldable short legs 50a and 50b on the back surface thereof. The pair of foldable short legs 50a and 50b are opposed to each other and fall to the inside thereof. The engagement convex part X close | similar to T shape is screwed on the outer side of a pair of folding type short leg 50a, 50b among the back surfaces of the top plate 55. FIG. First outer edge of the protruding portion X ₁ extending in desk width direction of Kakukakarigototsu portion X is positioned so as to contact the inner surface of the upper frame portion D of Nagaashiwaku 40a (40b). The second protrusions X ₂ extending in the desk length direction Kakukakarigototsu portion X is positioned to fit the engaging groove Y of the upper frame portion D.

As shown in FIGS. 1, 3, and 5, the long leg frame 40a (40b) of the desk assembly leg 10 is installed upright with respect to the beam plate portion 20, and then the short leg 50a (50b) is placed thereon. The banquet desk 50 is placed and the second protrusion X ₂ (first positioning means) on the back surface of the top plate 55 is engaged with the engagement groove Y of the upper frame portion D of the long leg frame 40a (40b). combined is fitted to a (second positioning means), an inner surface of the upper frame portion D of the first protrusions X ₁ of the long leg frame 40a on the outer edge (40b) abuts banquet desks 50 deviation It is installed without. For this reason, it can be rearranged and used as a long leg desk. Since this can be used as a top plate simply by screwing the engaging projection X to the existing folding banquet desk 50, the cost can be reduced as compared with the case of purchasing a long leg desk. Moreover, the desk assembly leg 10 is a folding type without a top plate, and is lightweight, compact and stackable.

  Further, since the beam plate portion 20 includes a latch bar 24a (24b) for holding the folding long leg frame 40a (40b) in a folded state with respect to the beam plate portion 20, the desk assembly leg 10 can be carried. It becomes easy.

(A) is a rear view which shows the assembly leg for desks concerning the Example of this invention, (B) is the left view. (A) is the rear view which shows the closed leg state of the assembly leg for desks, (B) is the left view. It is a top view of the assembly leg for the desk. (A) is a bottom view showing a folding banquet desk used as a top plate of the assembly leg for the desk, and (B) is a right side view thereof. (A) is the rear view which shows the state which combined the folding banquet desk with the assembly leg for the desk, (B) is the left view.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Desk assembly leg 20 ... Beam board part 22a, 22b ... Reinforcement part 24a, 24b ... Latch rod 30a, 30b ... Hinge 40a, 40b ... Folding type long leg frame 50 ... Folding type banquet desk 50a, 50b ... Folding type short Leg 55 ... Top plate A ... Lower frame part B ... Front leg part C ... Rear leg part D ... Upper frame part h ... Hole X ... Convex part X ₁ ... First protrusion part X ₂ ... Second protrusion part Y ... engagement groove

Claims (5)

A beam plate portion and a pair of foldable long leg frames that can be raised and lowered with respect to the beam plate portion with hinges at both ends of the back surface of the beam plate portion, and each long leg frame at its upper frame portion An assembly leg for a desk, comprising: a second positioning portion that engages with a first positioning portion provided on a back surface of a top plate of a folding short leg desk to position the top plate. The desk assembly leg according to claim 1, wherein the first positioning portion is a positioning convex portion, and the second positioning portion is a positioning recess. 3. The desk assembly leg according to claim 2, wherein the positioning convex portion is a first protrusion portion disposed in a longitudinal direction of the top plate, and the positioning recess is disposed in a direction perpendicular to the upper frame portion. An assembly leg for a desk characterized by being a groove portion. 4. The desk leg according to claim 3, wherein the convex portion includes a second protrusion that abuts against an inner surface of the upper frame portion. 5. The desk assembly leg according to any one of claims 1 to 4, wherein the beam plate portion includes a latch for holding a folded state of the folding long leg frame with respect to the beam plate portion. An assembly leg for a desk characterized by comprising.

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