JP3474265B2 - Furniture leg mounting structure - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention enables easy removal of legs from a furniture body when not in use, and is convenient for storing and moving furniture. The present invention relates to a leg mounting structure for furniture such as a table, in which a leg portion can be mounted extremely easily and firmly. 2. Description of the Related Art Conventionally, tables having detachable legs have been known. This conventional method employs a method in which a seat plate attached to an upper end of a leg is detachably fixed to a back surface of a table top using bolts and nuts. In the case of a sitting table or the like, a method of connecting a top plate and a leg with a hinge so that the leg can be folded has been used. [0003] However, the work of tightening and unscrewing one or more nuts for each leg is extremely complicated, and when a large number of tables are used, considerable time and labor are required. Will be required. The one with the legs mounted in a foldable manner has a problem in fixing strength due to its structure, and is not suitable for a large table. If the legs are cylindrical, the connection structure becomes complicated. Therefore, an object of the present invention is to remove the legs when not in use and to facilitate storage and transportation so that the attachment and detachment of the legs can be performed as simply, quickly and reliably as possible. To provide a furniture leg mounting structure. [0004] In order to achieve the above-mentioned object, a furniture leg mounting structure according to the present invention is provided so that a leg of furniture such as a table can be detachably attached to a furniture body such as a top plate. A fixing part 4 having a base 6 to be fixed to the furniture main body 1 and a bottomed short cylindrical fitting projection 8 protruding downward;
A fixing portion 5 provided at an upper end of the leg portion 2 and having a fitting hole 10 for tightly inserting the fitting projection 8 into the fitting portion 8. And the upper surface of the bottom surface 8a is formed as a slope a that is gently inclined upward in the circumferential direction of the cylinder from both side ends 9a of the slit 9 and the bottom surface 11 of the fitting hole 10. Has a shape capable of being inserted into the slit 9, and has a hooking member 12 provided with a hooking portion 12 b at the upper end thereof for contacting the slope a. When the leg portion 2 is rotated about its axis after being inserted into the hole, the hook portion 12b gradually tightens the slope a, and the front fixing portion 4 and the fixed portion 5 are firmly engaged. The configuration was adopted. [0005] In order to detachably connect the legs to the furniture main body 1, the fitting portions 8 of the fixing portion 4 fixed to the furniture main body 1 and projecting downward from the base 6 are fitted to the legs 2. The fitting hole 10 of the fixed part 5 provided at the upper end of the
The fitting projection 8 is inserted through the slit 9. And leg 2
Is rotated by a predetermined angle around its axis,
However, since the slope a formed on the upper surface of the bottom surface 8a is gradually tightened, the fixing portion 4 and the fixed portion 5 are firmly engaged with each other by almost one-touch operation. When removing the leg 2, the leg 2 may be rotated in a direction opposite to the direction in which the leg 2 is connected. An embodiment in which the present invention is applied to a table used in various event venues and the like will be described below with reference to the drawings. The top plate 1 (furniture main body) of the table A of this embodiment shown in FIG.
m. The four legs 2 of table A
With the leg mounting structure of the present invention, the top plate 1 is detachably connected to four locations on the back surface of the top plate 1, respectively. Leg 2 of this embodiment
Is made of plated metal pipe with a thickness of about 7 cm,
The height adjuster 3 is attached to the lower end. The leg mounting structure is shown in FIG. 2, which is provided at the upper end of each leg 2 with the fixing portion 4 shown in FIG. And the fixed part 5. [0008] The fixing portion 4 has a rectangular base 6 made of metal, and has screw holes 7 at a plurality of positions on the peripheral edge thereof.
A bottomed short cylindrical fitting projection 8 is provided in the middle of the base 6.
It protrudes downward in a concave shape. The bottom surface 8a is provided with a slit 9 having a predetermined length and width extending in the cylinder radial direction. The upper surface of the bottom surface 8a is formed as a slope a, a which forms a gentle spiral in the circumferential direction of the cylinder and inclines upward from both ends 9a, 9a of the slit 9 (FIG. 1).
(See the arrow marked with the symbol f.) When the leg 2 is connected to the back surface of the top plate 1, a rotation range mark 20 for indicating a range in which the leg 2 can be rotated around its axis is provided as described later. 8 is provided on the lower surface of the base 6 so as to surround it (in the drawing, it is particularly drawn on the upper surface for easy viewing). On the other hand, a rotation starting mark 21 is provided at the upper end of the outer peripheral surface of the leg 2. Next, the fixed part 5 incorporates the upper end of the leg 2 made of a pipe into a part of its constituent members. That is, the inner space at the upper end of the leg portion 2 is a fitting hole 10 for fitting the fitting protrusion 8 tightly. Reference numeral 11 denotes a bottom plate serving as a bottom of the fitting hole 10, which is welded to the inner space of the leg 2 in a bridging manner. In the middle of the bottom plate 11, a locking member 12 for firmly locking the fixing portion 4 and the fixed portion 5 is provided so as to protrude upward. The latch member 12 of this embodiment has a form in which two short metal rods are welded in a T-shape.
The lower end of 2 a is welded to the center of the bottom plate 11. The T-shaped horizontal bar portion serves as a hook 12b hooked on the slope a. The height of the leg 12a is, as shown in FIG.
In a state in which b is inserted into the slit 9, the lower surface of the hooking portion 12b is set to a size that can protrude onto this surface without barely interfering with the starting end portion of the slope a (both ends 9a of the slit 9). ing. Next, the operation of the above configuration will be described. Now, when not in use, the table A is stored in a non-bulky state with each leg 2 removed from the top plate 1. In order to assemble the table A from this state, first, the top plate 1 is turned upside down or set up. Then, the fitting hole 10 at the top end of the leg 2 is fitted into the fitting projection 8 of the fixing portion 4. At this time, the rotation start mark 21 provided on the upper end of the leg 2 is replaced with the arrow-shaped rotation range mark 2 provided on the base 6.
If it is aligned with the leading end of 0, the hook 12b can be inserted through the slit 9 and protruded above the bottom surface 8a. However, the marks 20 and 21 need not be provided. Therefore,
When the leg 2 is rotated in a direction in which the rotation start mark 21 approaches the base end of the arrow-shaped rotation range mark 20,
With the rotation of the hook 12b, the lower surface of the hook 12b
The slope a acting like the slope of the thread of the bolt and nut will be gradually tightened. When the mark 21 does not approach the end of the mark 20, it cannot be further tightened.
The fixed portion 5 integrally provided at the upper end of the leg portion 2 is extremely firmly fastened and fixed to the fixing portion 4 attached to the back surface of the top plate 1.
The operation of attaching the leg 2 of the book to the top plate 1 is completed by an operation almost one-touch. The other three legs 2 are attached in the same manner as described above. When the used table A is to be stored in a compact state, the legs 2 can be removed very easily and quickly from the top plate 1 by turning the legs 2 in the direction opposite to the direction in which they are mounted. I can do it. Then, in order to easily rotate the leg 2 with a very light force, a small hole (not shown) is provided near the upper end of the leg 2 and a screwdriver inserted into the small hole is provided. And it is good to turn a lever or the like. In the above configuration, the object of the present invention is achieved even if the structure of the details is appropriately changed in design. For example, the shape of the hooking member 12 is not limited to that shown in the drawing. In short, the hook-shaped hooking portion formed at the upper end thereof is
a into the slit for insertion provided in
Is rotated around its axis.
It suffices to have a shape that gradually tightens the slope a provided on the upper surface of the a. A method other than that shown in the drawings can be used to attach the hooking member 12 to the leg 2. Further, the shape of the leg is not limited to the cylindrical shape, and the configuration of the present invention described in the claims can be incorporated even if the shape is any arbitrary shape. And furniture is not limited to tables. As is apparent from the above description, the furniture leg mounting structure according to the present invention has the following practically excellent effects. (A) To attach and detach the legs from the furniture main body, fit the fitting holes of the fixed portions provided at the upper ends of the legs into the fitting projections of the fixing portions fixed to the furniture main body. It suffices to rotate the legs forward and backward around their axis. (B) Therefore, as compared with the conventional art in which the legs are fixed using bolts and nuts, the operation of attaching and detaching the legs can be performed much more easily and quickly with almost one-touch operation. (C) The trouble of storing the removed nuts one by one is also eliminated. (D) In addition, there is no need to use any attachment / detachment tool such as a subana. (E) Sufficient connection strength between the fixing portion and the fixed portion can be secured by the wedge action of the slope formed in the fitting projection.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment in which the present invention is applied to a table, and is a perspective view of a fixing portion. FIG. 2 is a perspective view showing a fixed portion provided at an upper end of a leg portion according to the first embodiment; FIG. 3 is a longitudinal sectional view showing a state where the fixing part and the fixed member are engaged with each other; FIG. 4 is a perspective view of the same table. [Description of Signs] A Table (furniture) 1 Top plate (furniture main body) 2 Leg 3 Height adjuster 4 Fixed part 5 Fixed part 6 Base 7 Screw hole 8 Fitting protrusion 8a Bottom surface 9 Slit 9a End face 10 Fitting hole DESCRIPTION OF SYMBOLS 11 Bottom plate (bottom part) 12 Hook member 12a Leg 12b Hook part 20 Rotation range mark 21 Rotation start mark

Claims (1)

(1) A structure for removably attaching a leg of furniture such as a table to a furniture body such as a top plate, wherein the base is fixed to the furniture body. A fixing portion 4 having a bottomed short cylindrical fitting protrusion 8 protruding downward; and a fitting hole 10 provided at the upper end of the leg portion 2 for tightly fitting the fitting protrusion 8. A slit 9 is provided on the bottom surface 8a of the fitting projection 8 and extends in the radial direction of the cylinder. The upper surface of the bottom surface 8a extends from both side ends 9a and 9a of the slit 9 in the circumferential direction of the cylinder, respectively. The bottom 11 of the fitting hole 10 has a shape that can be inserted into the slit 9, and the upper end thereof has an engaging portion that abuts on the slope a. A hook member 12 provided with a hook 12b is protruded, and the hook portion 12b is inserted through the slit 9. After that was,
When the leg 2 is rotated about its axis, the hook 1
2b, wherein the slope a is gradually tightened so that the front fixing portion 4 and the fixed portion 5 are firmly engaged with each other.