JPH1085046A - Folding end sitting table - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve stability of folded table and to enable even a wheelchair user to comfortably use the table properly keeping the distance to the top plate, by making the top plate to be double-folded structure and to be fixed at an arbitrary position in the front and rear direction. SOLUTION: A double-folded structured top plate 5 is constituted by integrally connecting a pair of L-shaped angle 5-1 attached facing the right front side and the back face end part of this table on each underside of right and left top plates with an inside and outside pair of joint 5-2 in a vertically bendable condition, and both end parts of an inner pipe 4-2 of a top plate receiver 4 is connected with the other end part of the L-shaped angle 5. Consequently, the top plate 5 is made foldable in the width direction via the joint 5-2 and can be moved in the front and rear direction by the sliding top plate receiver 4. The position in the front and rear direction is set by moving the top plate in the front and rear direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an end-sitting table suitable for use mainly in hospitals and nursing homes, etc., and is used for simple meals while sitting on an ordinary chair, wheelchair, or bed. Not only has a function as a dining table,
The present invention relates to a movable folding end seating table that can be used as a walker.

[0002]

2. Description of the Related Art When eating meals while sitting in a wheelchair or bed in a hospital or nursing home, a mobile dining table or table is generally used. Conventionally used mobile tables and tables have a fixed height and are simply provided with casters attached to the main body or legs. Such a conventional end seating table does not have a height adjusting mechanism, so there is an inconvenience that the height of the top plate cannot be adjusted according to the sitting height or the height, and the structure can be folded more easily. It was inconvenient to clean up and carry because it was not, and required a large space for storage, storage and storage.

In view of the above-mentioned problems of the conventional end seating table, the inventor of the present invention has a top plate height adjusting mechanism for improving the convenience and practicality of the end seating table. We have previously proposed an end-sitting table that can be easily folded by a one-touch operation on both the top plate and the top plate, and can also be used as a walker (Japanese Patent Publication No.
-51011). This end seating table can be easily transported by folding the table body in the width direction, and can be set up in a narrow space without taking up a large space for storage and storage. The height of the top plate can be adjusted arbitrarily according to the sitting height and height by making it adjustable.The structure is a horizontal leg that can adjust the length in the front and rear direction, and it stands on this horizontal leg A pair of left and right legs, each of which has a height-adjustable vertical pillar, can be folded in the width direction by a folding mechanism configured by combining a link mechanism and a crossbar. A single top plate is attached to the top plate holder attached to the upper part of the vertical pillar so that it can be inverted,
When folded, this top plate can be hung down along the side of the leg.

[0004]

However, the above-mentioned end seating table proposed by the inventor of the present invention can be mounted on the top plate so as to be able to move back and forth, but the top plate can be mounted at any position in the front-rear direction. Since the structure cannot be fixed and used, for example, when using the end sitting table while sitting on a wheelchair, a folding mechanism in which a wheelchair step (footrest) is installed on the back side of the table In such a case, the distance between the user sitting on the wheelchair and the top board is too large, which causes inconvenience. Also, because the top plate is composed of a single piece and is suspended along the side of one pillar when folded,
When the end seating table is folded in the width direction, the weight on the top plate side increases, so that the right and left weight balance becomes unbalanced, and there is a risk of falling down.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem. The present invention solves the problem of weight balance at the time of folding the table by folding the table in two, and further enhances the stability of the folded table. By providing a top plate that can be fixed to any position in the front-rear direction, a folding end seating table can be provided that even a wheelchair user can maintain a proper distance from the top plate and use it more comfortably. It is assumed that.

[0006]

SUMMARY OF THE INVENTION A folding end seating table according to the present invention comprises a horizontal leg with casters and a pedestal having a top plate receiver whose height can be adjusted by a sliding height adjusting mechanism. A pair of left and right legs are attached to the upper part of both legs so as to be freely rotatable in the vertical direction, and via a cross bar arranged between the pair of movable arms and both legs that are flexibly connected via links. In the foldable end seating table that can be folded in the width direction, the top plate has a pair of left and right two-fold structures, and the left and right top plates of the two-fold structure can be slid in the front-rear direction on the slide-type top support and In addition to being vertically rotatable, the left and right top plates are connected to bendable in the vertical direction, and can be erected upward along the side surface of the leg in conjunction with the folding operation of the leg. thing It is an gist. Further, the slide type top plate receiver is constituted by an outer pipe and an inner pipe slidably and rotatably fitted inside the pipe.

[0007] The pair of left and right legs have one or two rectangular pipe-shaped pillars vertically erected on the upper surface on the rear side of the horizontal legs having casters attached to the front and rear ends, and pivot on the upper portions of both pillars. It is composed of a pair of left and right movable arms that are freely attached and flexibly connected via links, and a folding mechanism consisting of a crossbar arranged between this movable arm and both pillars. When a force is applied to both legs in an inward direction (closing direction) with respect to both legs, the movable arm pivots upward by the action of the crossbar and bends from the connection portion, thereby bending in the width direction. When the movable arm is folded and the movable arm is in the vertical state, the link serves as a stopper and cannot be closed any more, and the folding is completed. Also,
When the legs are opened from the folded state, the movable arm is tilted by the action of the crossbar by opening the left and right legs opposite to the folding, and the crossbar is completely opened when the arm is positioned horizontally. State, and the open leg state is maintained. It should be noted that a round pipe is usually used for the movable arm and the crossbar, and as a means for attaching to these pedestals, a method of using a bracket to rotatably pin can be used.

The height adjustment mechanism of the top support is provided with a top support slidable in the front-rear direction on a guide support slidably inserted in the up and down direction on each of the pedestals, and a height adjustment jig protruding from the pedestal. A method of fixing the guide column with a tool can be adopted. The height adjusting jig is, for example, constantly pushed to the guide column side by a compression spring inserted in the guide cylinder to a pin provided in a guide cylinder body projecting horizontally from the column so as to be slidable in a direction perpendicular to the column. When pressure is applied and this pin is pulled outward against the compression spring, the tip of the pin separates from the guide support so that the guide support can slide, and when the pin is released, the pin is guided by the force of the compression spring. A method of pressing and fixing the column, a method of fixing the guide column with a screw pin screwed to the column, and the like can be used.

The top plate has a two-folded structure in which it is divided into two pieces on the left and right instead of a conventional one, and a slide-type top plate receiver attached to a guide column inserted in both legs slidably in the vertical direction has an outer end. Each part is rotatably mounted in the up and down direction, and the inner end is connected so as to be able to bend in the up and down direction and integrated, so that the top plate can be slid in the front and back direction and used at any position When folded, it can stand upright along the side surfaces of the left and right legs. As means for attaching the top plate, the top plate support is constituted by an outer pipe using a round pipe, for example, and an inner pipe slidably and rotatably fitted inside the pipe, and the outer pipe side is fixed to the guide column. When the left and right top plates are integrally attached to the inner pipe via an angle, not only can the top plate be adjusted in height using guide posts, but also the front and rear At the time of folding, and at the time of folding, it is folded in two from the center in conjunction with the folding operation of the leg, and can be erected upward along the side surface of the leg.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a perspective view showing an example of a folding type end seating table according to the present invention, FIG. 2 is a side view of the upper end sitting table, and FIG. FIG. 4 is a longitudinal sectional side view showing, in an enlarged scale, a height adjusting jig of the upper end seating table, 1 is a pair of right and left legs, 1-1 is a horizontal leg (made of a square pipe),
-2 is a pillar (made of a square pipe), 2 is a movable arm (made of a round pipe), 3 is a crossbar (made of a round pipe), 4 is a sliding top plate receiver (made of a round pipe), and 5 is a two-folded structure. A top plate, 6 is a height adjusting jig, and 7 is a caster.

A pair of left and right legs 1 has a horizontal leg 1-1 having casters 7 attached to the front and rear ends, and two leg posts 1 standing at the rear end of the horizontal leg at an interval. The front pillar of the two pillars 1-2 erected on each horizontal leg is used as a top plate supporting member, and the rear pillar is used as a folding mechanism component member. Is mounted rotatably on the upper part of both pillars 1-2 and has a link 2-1.
Pair of left and right movable arms 2 flexibly connected via
And a folding mechanism composed of the movable arm 2 and a cross bar 3 disposed between the two legs, so that it can be folded in the width direction. 1-3 is a reinforcing connection member.

A pair of left and right movable arms 2 are pivotally attached to the bracket 2-2 attached to the folding mechanism pillar 1-2 so as to be rotatable in the vertical direction by pins 2-3, and are joined together. The sides are flexibly connected by a link 2-1 at a required interval. The cross bar 3 is rotatably pivoted at the center of the two bars with a pin 3-1.
-2 pin 3-3 on the bracket 3-2 attached to the base of
The upper end is pivotally attached to a bracket 3-4 attached to the movable arm 2 by pins 3-5.

The top support 4 is composed of a short outer pipe 4-1 and a long inner pipe 4-2 which is slidably and rotatably fitted inside the pipe with appropriate hardness. A guide post 4-3 which is made of a heavy pipe and is slidably inserted in the vertical direction into the pillar 1-2 for supporting the top plate.
1 is attached, and the height position thereof can be adjusted by a height adjusting jig 6 protruding from the pillar 1-2. The height adjusting jig 6 includes a guide cylinder 6 protruding horizontally from the pillar 1-2.
-1 slidably provided in a direction perpendicular to the pillar.
-2, a pressing force is constantly applied to the guide column 4-3 side by a compression spring 6-3 inserted into the guide cylinder, and the pin 6-2 is pulled outward against the compression spring 6-3. When the tip of the rod is separated from the guide post 4-3, the guide post becomes slidable. When the pin 6-2 is released, the pin presses and fixes the guide post 4-3 by the force of the compression spring 6-3. It adopts the method of doing. In addition, height adjustment pin holes 4-4 are formed at appropriate intervals in the guide column 4-3.

The two-fold top plate 5 has a pair of L-shaped angles 5-1 attached to the lower surface of each of the left and right top plates so as to face each other at the front and rear ends of the table. At 5-2, it is configured so as to be connected to be able to bend in the vertical direction and integrated, and both ends of the inner pipe 4-2 of the top plate receiver 4 are connected to the other end of the L-shaped angle 5-1. I have. Therefore, the top plate 5 is configured to be foldable in the width direction via the joint 5-2, and can be moved in the front-rear direction by the slide-type top plate receiver 4.

FIG. 1 shows a state in which the end seating table of the above structure is opened (used state), the interval in the width direction is held by the movable arm 2 and the cross bar 3, and the top plate 5 is an L-shaped angle 5 -1 and a pair of inner and outer joints 5-2 are held horizontally. The height of the top plate 5 is adjusted by sliding the guide column 4-3 vertically while pulling the pin 6-2 of the height adjustment jig 6 protruding from the pillar 1-2 toward the user. . The position in the front-back direction of the top 5 is set by horizontally moving the top 5 in the front-back direction. At this time, for example, if the step of the wheelchair hits the crossbar of the folding mechanism and the gap between the user sitting on the wheelchair and the top plate is too wide, pull the top plate 5 forward and move it horizontally to the desired position. Just do it.

Next, when the end seating position table is folded, the movable arm 2 which is a component of the folding mechanism is used.
The left and right legs 1 are pulled toward each other by pushing up the link 2-1 upward, and the top plate 5 also bends from the joint 5-2 with the top plate receiver 4 as a fulcrum in conjunction with the operation. Then, it is closed gradually by being folded into two and standing above the legs, as shown in FIG.
Is horizontal and the movable arm 2 is substantially vertical when the folding is completed.

To open the folded table,
By opening the left and right legs opposite to the folding, the movable arm 2 is tilted by the action of the crossbar 3, and when the arm is located horizontally, the crossbar 3 is also completely opened, and the open state is maintained. Is done.

[0018]

According to the present invention, a movable end seating position having a folding mechanism for the top plate, a mechanism for adjusting the height of the top plate, and a rotating mechanism in addition to a cross bar folding mechanism, a top plate height adjusting mechanism and a rotating mechanism, is provided. This is a table and has the following effects. Because the entire table can be folded in the width direction,
When folded, the thickness of the main body is greatly reduced, allowing it to be placed upright in a narrow space, and does not require a large space for storage and storage. Since the crossbar system is used for the folding mechanism, the structure is compact and the opening and closing of the legs can be easily and quickly performed by one-touch operation. By using a pipe as a component, not only can the weight be reduced and it is convenient to carry, but also a strong one can be obtained. The height of the tabletop can be adjusted, so that not only can the tabletop be set to a height according to the sitting height or height, but also the tabletop can be fixed at any position in the front-rear direction, so even wheelchair users can maintain a distance from the tabletop. Can always be properly maintained and used more comfortably. Since the top plate has a two-fold structure, even when the table is folded, the weight balance between the left and right sides is good, the stability of the folded table is high, and there is no possibility of falling. Since it is a mobile type, it can be used not only as a normal chair or wheelchair, or as a simple dining table for eating while sitting on a bed, but also as a walker.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of a folding end seating table according to the present invention.

FIG. 2 is a side view of the upper end sitting table.

FIG. 3 is a rear view showing a state where the upper end sitting table is folded.

FIG. 4 is an enlarged longitudinal side view showing a height adjusting jig of the upper end sitting table.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 A pair of right and left legs 1-1 Horizontal leg (made of square pipe) 1-2 Pillar (made of square pipe) 2 Movable arm (made of round pipe) 3 Crossbar (made of round pipe) 4 Sliding top board holder (round) 5) Bi-fold top plate 6 Height adjustment jig 7 Casters

Claims (2)

[Claims] 1. A pair of left and right legs comprising a horizontal leg with casters and a leg having a top plate receiver whose height can be adjusted by a slide-type height adjusting mechanism are vertically rotated by both legs. In a foldable end seating table which can be folded in the width direction via a crossbar disposed between a pair of movable arms and both pedestals which are freely attached and flexibly connected via links, With a pair of left and right two-fold structures, the left and right top plates of the two-fold structure are slidably and rotatably attached to the sliding top plate so as to be slidable in the front-rear direction, and the left and right top plates are respectively vertically moved. A foldable end seating table characterized in that it is connected to bendable and can be erected upward along the side surface of the leg in conjunction with the folding operation of the leg. 2. The folding end seating table according to claim 1, wherein said top plate receiver is constituted by an outer pipe and an inner pipe slidably and rotatably fitted inside said pipe.