JP4718587B2 - Folding table - Google Patents

Description

  The present invention relates to a foldable table that can be used for various purposes, and more particularly to a foldable table that can be folded compactly.

An example of a conventional folding table is disclosed in Patent Document 1.
The conventional foldable table shown in Patent Document 1 is a top plate frame in which a top plate is attached between rearwardly extending portions bent at the upper part of a pair of left and right rear legs connected by a connecting rod. The rear end of the top plate can be rotatably attached to both rearward extension parts by sandwiching the rear end part, and the downward bent part of the side frame with front legs can be turned to the front part of each rear leg The caster is provided at the lower end of each rear leg and front leg.

This foldable table can be used as a table by opening both side frames with front legs to the use position facing forward, and fixing the top plate in a horizontal state. By rotating 270 degrees, the top plate stands almost vertically on the rear side of the rear legs, and the bottom surface of the top plate is brought into contact with the ground (grounding) directly or via the top plate frame, and both side frames are connected to each other. By turning it to the folding position facing in the direction, it is possible to fold it in a state where the whole is upright.
JP 2006-43075 A

However, in the above-described conventional technique, although the entire table can be folded compactly, it is necessary to rotate the top plate by approximately 270 degrees when unfolding and folding the table to be usable. Therefore, there is a problem that the operability is poor and the balance is easily lost when the top plate is rotated.
In addition, the table has been folded to prevent the table from falling over by folding the bottom plate of the top plate, which is set up almost vertically during folding, directly or via the top plate frame. There is a problem that the caster cannot be moved in a folded state, and the lower end surface of the top plate is grounded. For example, when used as a work table for a kitchen, the lower end surface of the top plate can be kept clean. There is also a problem of disappearing.

  An object of the present invention is to solve such a problem.

Therefore, the folding table of the present invention has two fixed legs coupled in parallel by a connecting member at a predetermined interval, a horizontal part and a vertical part, and the vertical part is parallel to the fixed leg and fixed. Two arms pivotably attached to the legs, an opening / closing leg attached to the tip of the horizontal portion of the arm so as to be parallel to the fixing legs, and the opening / closing legs at the lower ends of the fixing legs. An overhang portion formed so as to protrude obliquely outward toward the opposite side, and an overhang portion formed so as to protrude obliquely outward toward the opposite side of the fixed leg at the lower end of each of the opening and closing legs A caster attached to the overhanging portion of each of the fixed legs and the overhanging portion of each of the opening and closing legs, and a horizontal portion of an arm attached to the one of the fixed legs so as to be slidable in the axial direction and the other Arm attached to the fixed leg A slide member for mounting the horizontal portions of both arms in an X shape by being pivotably attached to the horizontal portion of the base plate, and a top plate having a portion near one side pivotably attached to the upper end of each of the fixed legs. Rotate the plate so that it is horizontal, open so that the open / close legs are separated from the fixed legs, and place the top plate on the open / close legs to form an unfolded table. The open / close legs are closed so as to approach each other, and the top plate is rotated almost vertically so that it is folded. It is characterized in that it is located in

The present invention thus configured has good operability and can be used when the top plate is rotated because it only needs to be rotated about 90 degrees when unfolding and folding the table to be usable. The effect is that the balance is not lost and the vehicle does not fall.
In addition, when folded, the center of gravity of the top plate is located inside the casters attached to the overhanging part of the open / close leg, so that a stable standing state can be obtained, so that it can be stably kept in any place in the folded state. When the plate is further folded, the bottom surface of the top plate does not come into contact with the ground, so when using it as a work table for a kitchen, for example, the cleanness of the bottom surface of the top plate can be maintained. And can be stored in a stable standing state.

Furthermore, when one of the opening / closing legs is operated during folding, the other opening / closing leg is also interlocked by the slide member, so that it can be folded by one-handed operation, and in this respect, the operability is excellent.

  Embodiments of a folding table according to the present invention will be described below with reference to the drawings.

1 is a perspective view of the unfolded state showing the embodiment, FIG. 2 is a perspective view of the folded state, FIG. 3 is a perspective view of the unfolded state where the top plate is shown by a broken line, and FIG.
1-4, 1 is a top plate (top), 2 and 3 are a pair of fixed legs, and 4 and 5 are a pair of opening and closing legs.
The top plate 1 is formed in a rectangular shape, and has a peripheral surface 1a having a predetermined width that is bent so as to hang downward.

For example, the upper and lower portions of the fixed legs 2 and 3 are coupled by connecting members 6a and 6b having a predetermined length.
Each of the connecting members 6a and 6b has a length slightly shorter than the length of the top plate 1 in the longitudinal direction, and the pair of fixing legs 2 and 3 are fixed in parallel with each other by the connecting members 6a and 6b. , 6b together with the frame.

Further, at the lower ends of the fixed legs 2 and 3, there are formed projecting portions 2a and 3a which are bent so as to project in an obliquely outward direction toward the opposite side of the opening and closing legs 4 and 5 attached as described later. In addition, a caster 7 with a lock mechanism is attached to the lower side of the tip of each overhanging portion 2a, 3a.
The open / close legs 4 and 5 are formed to have the same length as the fixed legs 2 and 3.

  The upper and lower legs 4 and 5 are fixed to the upper and lower horizontal parts 8a, 8b, 9a and 9b of the U-shaped arms 8 and 9, respectively. At the lower end, projecting portions 4a and 5a that are bent so as to project obliquely outward toward the opposite side of the fixed legs 2 and 3 are formed. A caster 7 with a lock mechanism is attached.

Of the two arms 8, 9, one arm 8 is supported by being pivotally attached to the fixed leg 3 via the arm support 10 at a plurality of locations (two locations in the figure) of the vertical portion 8c. The other arm 9 is supported by being rotatably attached to the fixed leg 2 via the arm support 10 at a plurality of locations (two locations in the figure) of the vertical portion 9c.
Further, the upper and lower horizontal portions 8a, 8b and 9a, 9b of the arms 8, 9 are set to have a length equal to or slightly shorter than the length of the top plate 1 in the longitudinal direction. Short cylindrical slide members 11 a and 11 b are attached to the outer circumferences of the portions 8 a and 8 b by being movably fitted in the axial direction, and one slide member 11 a is attached to the horizontal portion 9 a on the upper side of the arm 9. By attaching the other slide member 11b to the substantially central portion in the longitudinal direction of the horizontal portion 9b on the lower side of the arm 9, the other slide member 11b is rotatably attached to the substantially central portion in the longitudinal direction. The horizontal portions 8a and 9a and the lower horizontal portions 8b and 9b are assembled in an X-shape, whereby each of the opening and closing legs 4 and 5 rotates the arms 8 and 9 to be fixed to the fixed legs 2 and 3, respectively. Approach Or closed location, thereby making it possible to open or away.

Reference numeral 12 denotes a guide shaft having both ends fixed to the connecting member 6a via a pair of support portions 13a and 13b so as to be substantially parallel to the upper connecting member 6a. Reference numeral 14 denotes an outer periphery of the guide shaft 12 in the axial direction. It is a short cylindrical slide member attached by being movably fitted.
Reference numeral 15 denotes a rod. One end of the rod 15 is rotatably attached to the slide member 14, and the other end is rotatably attached to the horizontal portion 8a (or horizontal portion 9a) of the arm 8 (or arm 9). Yes.

Reference numeral 16 denotes a coil spring (urging means) that is fitted on the outer periphery of the guide shaft 12 and disposed between the support portion 13 b on the fixed leg 3 side and the slide member 14.
The guide shaft 12, the support portions 13a and 13b, the slide member 14, the rod 15, and the coil spring 16 constitute an opening leg mechanism in this embodiment, and the slide member 14 is fixed by the coil spring 16 as shown in FIG. The rod 15 is urged to be pressed against the support portion 13a on the leg 3 side, whereby the rod 15 pushes the horizontal portion 8a of the arm 8 so that the opening / closing leg 4 opens away from the fixed leg 2, and further opens and closes in conjunction with this. The leg 5 is opened away from the fixed leg 3.

In this state, the opening and closing legs 4 and 5 are separated from the fixed legs 2 and 3 by an equal distance, and the rod 15 is pivotally attached to the slide member 14 at the end that is pivotally attached to the horizontal portion 8a of the arm 8. As will be described later, the opening and closing legs 4 and 5 do not jump out of the top plate 1 that is horizontally supported, as will be described later.
Reference numeral 17 denotes a top plate support having bases attached to the upper ends of both fixed legs 2, and a portion near one long side of the back surface of the top plate 1 is rotatably attached to the tip of each top plate support 17. Thereby, the top plate 1 can be rotated in a horizontal and vertical state.

Further, each top plate support 17 closes the top and bottom legs 4 and 5 and the arms 8 and 9 when the top and bottom legs 4 and 5 are closed and the top plate 1 is rotated in a vertical state. It has a length that can be held, and in this state, the length of the overhanging portions 4a, 5a is such that the casters 7 attached to the overhanging portions 4a, 5a of the opening / closing legs 4, 5 are outside the top plate 1. It has been established.
In this embodiment, the top plate 1 is rectangular. However, the top plate 1 may be square, and the rectangle or the four corners of the square are cut or have a predetermined roundness, octagon, circle, ellipse, etc. It can also be.

Although each component of 1 to 16 described above is made of all basically stainless steel, the co if at least the top plate 1 is formed of stainless plate, each fixed leg 2, 3 and the opening and closing legs 4,5 What is necessary is just to form with the pipe made from stainless steel, and also it is possible to form each component by the combination with another metal, or a part plastic or wood.
The operation of the above configuration will be described.

5-7 is a perspective view which shows the folding process of an Example.
Now, when the folding table is in the unfolded state as shown in FIG. 1, the arms 8 and 9 have horizontal portions 8a and 9a, 8b and 9b, respectively, and the opening and closing legs 4 and 5 are the fixed legs 2, respectively. 3, the top plate 1 is held in a horizontal state with the portion near the other long side resting on the open / close legs 4 and 5.

At this time, the slide member 14 fitted on the outer periphery of the guide shaft 12 of the leg opening mechanism is urged so as to be pressed against the support portion 13a by the coil spring 16, whereby the rod 15 is opened and closed by the open / close legs 4, 5 The horizontal portion 8a of the arm 8 is pushed so as to keep it open from the fixed leg 2.
In this state, the casters 7 attached to the overhang portions 2a and 3a of the fixed legs 2 and 3 and the overhang portions 4a and 5a of the opening and closing legs 4 and 5 are locked by the respective lock mechanisms so that they cannot rotate. This folding table can be used as a work table for a kitchen, for example.

  When the folding table is folded from this state, the casters 7 attached to the overhanging portions 4a and 5a of the opening and closing legs 4 and 5 are unlocked so that they can be rotated, and the upper part of the opening and closing legs 4 or 5 is held and fixed by hand. When the arm 2 is pushed back to the leg 2 or 3 side, the arms 8 and 9 are rotated around the respective vertical portions 8c and 9c, and at this time, the slide member fitted on the outer periphery of the horizontal portions 8a and 8b of the arm 8 11a and 11b rotate in the horizontal direction and slide in the directions of the vertical portions 8c and 9c as indicated by an arrow A in FIG. 5, and at the same time, the rod 15 opposes the slide member 14 against the coil spring 16 and supports 13b. In order to push back to the side, as shown in FIG. 6, the horizontal portions 8a and 9a, 8b and 9b of the arms 8 and 9 are thinly folded.

As a result, when the open / close legs 4 and 5 close to the fixed legs 2 and 3 and close, the top board 1 rotates downward by about 90 degrees around the top board support 17 as shown in FIG. As shown in FIG. 2, the door is compactly folded, and in this state, the open / close legs 4 and 5 are held by the top plate 1 so as not to be opened.
In the table folded in this way, the center of gravity of the top plate 1 is located inside the casters 7 attached to the overhanging portions 4a and 5a of the opening and closing legs 4 and 5, that is, the overhanging portions 4a of the opening and closing legs 4 and 5. Since the caster 7 attached to 5a is located outside the top plate, a stable standing state is obtained, and therefore the caster 7 attached to the overhanging portions 2a and 3a of the fixed legs 2 and 3 is unlocked and rotated. By making it possible, it can be stably moved to any place in the folded state, and when further stored, after moving to the storage position, each caster 7 is locked by a lock mechanism so that it cannot rotate. By doing so, it can be stored in a stable standing state.

  When the folded state is restored to the unfolded state as shown in FIG. 1, it is moved to the place of use in the folded state, and is rotated approximately 90 degrees upward about the top plate support 17 so as to be horizontal. When lifted so as to be in a state, the slide member 14 of the leg opening mechanism is moved by this operation until it is urged by the spring force of the coil spring 16 and is pressed against the support portion 13a. Press 8a.

As a result, the arms 8 and 9 and the slide members 11a and 11b operate in the opposite direction to the above-described folding, and the horizontal portions 8a and 9a, 8b and 9b of the arms 8 and 9 become X-shaped respectively. The open / close legs 4 and 5 are opened to a position distant from the fixed legs 2 and 3 to be in a deployed state.

According to the embodiment described above, since it is only necessary to rotate the top plate 1 approximately 90 degrees when unfolding and folding it into a usable state as a table, the operability is good and the top plate 1 is rotated. The effect is that the balance is not lost when falling.

  Further, when folded, the center of gravity of the top plate 1 is located inside the casters 7 attached to the overhanging portions 4a and 5a of the opening and closing legs 4 and 5, so that a stable standing state can be obtained, and therefore the folded state Since the lower end surface of the top plate 1 does not come into contact with the ground when it is further folded, for example, when used as a work table for a kitchen, The bottom end surface can be kept clean and can be stored in a stable standing state.

Further, when unfolding to make it usable as a table, the open leg mechanism automatically opens the open / close legs 4 and 5, and when folding, the open / close leg 4 or 5 may be pushed back to the fixed leg 2 or 3 side. Therefore, the effect that the operability is excellent also in this respect can be obtained.
Further, the top plate 1 is formed of a stainless steel plate, and the fixing legs 2 and 3 and the opening and closing legs 4 and 5 and the arms 8 and 9 are formed of stainless steel pipes, so that sufficient strength can be obtained. As a result, there is no dirt, water, or chemicals inserted, so that an effect of always maintaining a clean state can be obtained.

In the above-described embodiment, the opening / closing operation can be further improved by attaching a roller to the upper ends of the opening / closing legs 4 and 5 and bringing them into contact with the lower surface of the top plate 1.

Further, in the above-described embodiment, the upper leg connecting member 6a is provided with the opening leg mechanism, but the lower connecting member 6b may be provided with the leg opening mechanism, and of course both on the upper side and the lower part. It may be provided.

The perspective view of the unfolded state which shows an Example The perspective view of the folding state which shows an Example The perspective view of the expansion | deployment state which showed the top plate which shows an Example with the broken line Main part enlarged plan view of Example The perspective view which shows the folding process of an Example. The perspective view which shows the folding process of an Example. The perspective view which shows the folding process of an Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Top plate 1a Peripheral surface 2, 3 Fixed leg 2a, 3a Overhang | projection part 4, 5 Opening / closing leg 4a, 5a Overhang | projection part 6a, 6b Connecting material 7 Caster 8, 9 Arm 8a, 8b Horizontal part 9a, 9a Horizontal part 8c, 9c Vertical portion 10 Arm support 11a, 11b Slide member 12 Guide shaft 13a, 13b Support portion 14 Slide member 15 Rod 16 Coil spring 17 Top plate support

Claims (2)

Two fixed legs connected in parallel by a connecting member at a predetermined interval, and having a horizontal part and a vertical part, the vertical part being parallel to the fixed leg and rotatably attached to the fixed leg. An opening / closing leg attached to the tip of the horizontal part of the arm so as to be parallel to the two arms and the fixing legs, and a lower end of each fixing leg extending obliquely outward toward the opposite side of the opening / closing legs. An overhang portion formed to protrude, an overhang portion formed so as to protrude obliquely outward toward the opposite side of the fixed leg at the lower end of each open / close leg, the overhang portion of each fixed leg, and the above Casters attached to the overhanging portions of the opening and closing legs, and horizontal portions of the arms attached to the horizontal portion of the arm attached to the one fixed leg so as to be slidable in the axial direction and attached to the other fixed leg. Can be pivotally attached to A slide member assembled with arms horizontal portion X shape, comprising a top plate attached portions of side near rotatably to the upper end of each of the fixed leg,
Rotate the top plate so that it is horizontal, open the open / close leg with respect to the fixed legs, and place the top plate on each open / close leg to form a table in an unfolded state,
The casters attached to the overhanging portions of the open / close legs in the folded state by closing the open / close legs so as to approach the fixed legs and rotating the top plate almost vertically. A foldable table characterized in that is positioned outside the top plate. The folding table according to claim 1, wherein
A guide shaft fixed to the connecting material through a pair of support portions at both ends so as to be substantially parallel to the connecting material, a slide member provided on the guide shaft so as to be movable in the axial direction, and one end A rod that is pivotally attached to a slide member provided on the guide shaft and has the other end rotatably attached to one of the arms, and a slide member provided on the guide shaft is connected to the pair of support portions. Comprising an urging means for urging one of the support portions,
A foldable table comprising an opening leg mechanism that functions to open the opening / closing leg away from the fixed leg when the rod pushes the arm by the biasing means.

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