JPH0440505Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a movable table counter that is mainly placed next to the bed and used as a dining table, reading table, etc.

(Prior art) For example, when eating in a hospital room or on a bed used in ordinary homes, a tray with dishes lined up is usually placed on one's lap. Because of this, it is extremely inconvenient to constantly pay attention to the tableware so that it does not fall over while eating. Furthermore, when reading while lying on your back or head down on the bed, the posture is uncomfortable, making it impossible to read for long periods of time, and there are many other inconveniences, such as poor lighting conditions and harmful effects on the eyes. be.

To solve this inconvenience, a relatively simple table counter that can be placed next to the bed for eating or reading has been put into practical use.One example of this is disclosed in Publication No. 40-29013. As disclosed, a vertical rod portion (post) of a support rod is formed in an inverted L shape on a pair of tubular support legs (posts) erected at the rear end of a base portion (frame).
Insert and fit the table so that it can be fixed at any height using fixing screws, and a horizontal rod part (top support rod) extending horizontally from the upper end of the support rod is provided on the back side of the table (top plate). It has a structure in which it is rotatably fitted into a pivot bracket, and by raising both vertical rods to the same height, the table is fixed in a horizontal position at a height that matches the height of the bed. I can do it,
In addition, the table can be fixed in an inclined position by pulling up one vertical rod, or in addition, as disclosed in Japanese Utility Model Application No. 50-60202, it can be moved freely by attaching casters to the underframe. year,
There is a known device that utilizes the moving casters so that it can be moved close to the bed.

(Problem to be solved by the invention) However, in the case of a conventional table counter having the above configuration, when both support rods face each other in the horizontal direction, the axial center spacing of the support rods and each Since the bearing spacing of the top plates that are fitted and pivoted on the support rods is almost the same, there is no problem when using the top plates horizontally as a dining table, etc., but if one of the support rods is pulled up, When you try to tilt the top plate by tilting the top plate, the spacing between both support rods becomes wider than the spacing between the bearings, forcing both support rods to deform toward each other, and at this time, the support rods are twisted. As force is applied, it is difficult for sick people, women and women to tilt the top plate, and there are other problems such as excessive force being applied to the parts where the support rods are fixed by fixing screws, which can cause malfunctions. .

Conventionally, as a solution to this problem, as disclosed in Utility Model Publication No. 62-25155, one of the bearing holes provided on both sides of the table plate (top plate) is supported. By making a circular hole with approximately the same diameter as the shaft (support rod) and making the other bearing hole a horizontally long elongated hole, the support rod fitted in the elongated hole can move, allowing both supports to move. There is one that allows the top plate to be tilted without deforming the rods.

However, with such a solution,
Since one of the support rods is movable within the long hole, there was a problem in that it was impossible to control the wobbling of the top plate with the tip side as the free end, resulting in a functionally incomplete product. .

This invention was made to solve these conventional problems, and it is a mobile table counter that can be used not only as a dining table, but also as a reading table. This is what we are trying to provide.

(Means for Solving the Problems) The technical means of the present invention for solving the above-mentioned problems is to adjust the height of at least one pair of columns on an underframe equipped with moving casters. Stands upright and can be fixed at any height via a mechanism.
A pair of top plate support rods arranged substantially parallel to each other extends in a substantially horizontal direction from the upper end of each of the pillars, while the top plate and each of the top plate support rods are arranged on the back side of the top plate. The metal fittings to be connected are fixed, a pivot hole is formed in one metal fitting, a long hole is formed in the other metal fitting, the pivot hole is fitted into one of the top plate support rods, and the long hole is The structure is characterized in that the hole is fitted into the other top support rod, and a tension spring is stretched between the respective top support rods.

(Function) According to the above configuration, when the top plate is to be tilted, the height adjustment mechanism is operated to create a difference in height between the pillars on one side and the pillars on the opposite side. Due to this difference in height between the two supports, the top plate tilts about one of the top support rods via one of the metal fittings, but at the same time, the long hole moves along the other top support rod, and the top plate tilts around one of the top support rods. Since the board is allowed to tilt, the top board can be smoothly moved to a desired angle of inclination, and then by locking all height adjustment mechanisms, the top board is fixed, making it suitable for use as a reading table. I can do it.

Furthermore, by arranging all the pillars at the same height, the top plate is fixed in a horizontal position at a height that matches the height of the bed, making it suitable for use as a dining table.

Furthermore, since both top plate support rods are constantly drawn toward the supporting rods facing each other by tension springs stretched between these support rods, and are pressed against the inner end surface of the elongated hole, each top plate support rod The top plate is always fixed without wobbling regardless of whether it is horizontal or tilted, allowing the top plate to be used stably as a dining table, reading table, etc.

(Example) Hereinafter, an example of the present invention will be described in detail based on the drawings. In Figs. 1 to 3, 1 is an underframe, 2a and 2b are columns, and 3 is a top plate.

The underframe 1 has a pair of frame members 4a and 4b formed from metal round pipes bent in an L-shape.
A plurality of horizontal connecting rods 5 (three in the figure) are mounted and integrated between a and 4b, and each of the frame members 4a and 4b
A total of four moving casters 7 are attached to the bottom of both ends of the horizontally extending bases 6a, 6b, and the horizontal bases 6a, 6b and the vertically extending column supports 8a, 8b are connected to each other. Reinforcing pipes 9a and 9b are diagonally installed between them. Further, a separately prepared basket 10 for storing things may be placed between the horizontal bases 6a and 6b so as to be attachable and detachable.

Each of the pillar supports 8a and 8b has an open upper end,
The pillars 2a and 2b are fitted through this upper end opening. Each of the supports 2a and 2b is made of a metal round pipe with a smaller diameter than the pipe constituting the underframe 1 bent into an inverted L shape, and a top plate 3 (described later) is placed on the horizontally extending portion of this round pipe. is supported.

Between the columns 2a, 2b and the column supports 8a, 8b of the underframe 1, there is a height adjustment mechanism 12 for fixing the columns 2a, 2b at arbitrary height positions.
a, 12b are individually interposed on each support column 2a, 2b. This height adjustment mechanism 12a, 12b
For example, screw holes are formed in the upper ends of the column supports 8a and 8b, and fixing bolts are screwed into these screw holes so that they can move forward and backward.In this case, the fixing bolts can be rotated to By pressing the support pillars 2a, 2b against the peripheral surfaces of the pillars 2a, 2b.
The columns 2a and 2b are unlocked by fixing them at a desired height and loosening the fixing bolts.

The top plate 3 attached to each of the top plate support rods 11a and 11b is formed into a rectangular shape with vertical and horizontal dimensions of about 350 mm x 540 mm, and a slip prevention plate 14 made of an L-shaped member is attached along the front and rear sides of the top surface. , 14 are attached, and when the top plate 3 is tilted, this slip prevention plate 14, 1
4 prevents objects placed on the top surface of the top plate 3, such as tableware and books, from falling off.

Further, as shown in FIG. 4, on the back side of the top plate 3, there is a metal fitting 15a that fits into each top plate support rod 11a, 11b to connect the top plate 3 and the support rods 11a, 11b. , 15b are each support rod 11a, 11b
One pair is fixed for each. These metal fittings 1
5a and 15b are vertical wall portions 17a and 17b extending downward from the joint wall portions 16a and 16b to the back surface of the top plate 3, respectively.
vertical wall portions 17a, 17b and reinforcing plate portions 18a, 18b extending horizontally from the vertical wall portions 17a, 17b.
A pivot hole 19 having approximately the same diameter as one of the top plate support rods 11a is formed in each a, and this pivot hole 19 is rotatably fitted into one of the top plate support rods 11a, and the other Elongated holes 20 are formed in the vertical wall portions 17b of the metal fittings 15b, respectively, and these elongated holes 20 are slidably fitted into the other top plate support rod 11b.

In addition, collar members 2 with hooks are located near the metal fitting mounting positions of both the top plate support rods 11a and 11b.
1... are fitted, and tension springs 22,
22 is tensioned, and the biasing force of each tension spring 22 constantly draws the top plate support rods 11a, 11b toward each other, so that they are pressed against the inner end surface of the elongated hole. The top support rods 11a and 11b, which are free ends, are always fixed without wobbling regardless of whether they are in a horizontal position or an inclined position. Note that only one tension spring 22 may be provided between the support rods 11a and 11b.

In the above configuration, when attempting to tilt the top plate 3 to a desired inclination for purposes such as reading, the height adjustment mechanisms 12a and 12b are operated to
When a difference in height is provided between the pillars 2b on the other side, the elongated holes 20 move to the other top plate support rod 11b, and one metal fitting 15a moves to the other top plate support rod 11a.
The top plate 3 is tilted as shown by the imaginary line in Fig. 4, and then when all the height adjustment mechanisms 12a and 12b are locked, the top plate 3 is fixed in the desired tilted position. Therefore, it can be conveniently used as a reading table.

Also, when using the top plate 3 in a horizontal position as a dining table, etc., by aligning each support 2a and 2b to the same height, the top plate 3 is fixed horizontally at a height position that matches the height of the bed. It will be done. Further, the top plate 3 can be tilted in either direction.

In the embodiments described above, almost the entire table counter except for the top plate 3 is constructed of a pipe frame, but in the present invention, the underframe 1 can also be constructed of a metal shape material, plate material, etc. It is.

Furthermore, it goes without saying that the height adjustment mechanisms 12a and 12b are not limited to the structure described above.

(Effects of the invention) As explained above, according to the invention, a pair of top plate support rods are extended from the top of the pillars erected on the underframe via a height adjustment mechanism, and a pivot point is placed on both support rods. Since the top plate is installed in a tiltable manner through the metal fittings with supporting holes and the metal fittings with slotted holes, the top plate can be fixed at a desired tilted position by making the heights of the opposing supports different, for example. It can be suitably used as a reading table or the like. In addition, by aligning the heights of each support, the top plate can be held in a horizontal position at a height that matches the bed height, making it possible to use it as a dining table, etc., using a single movable table counter. It can be used for various purposes, and can be easily moved using moving casters.Furthermore, both top plate support rods are always supported opposite each other by tension springs stretched between these support rods. By being pulled toward the rod side, it is pressed against the inner end surface of the long hole, so each top support rod can be fixed without wobbling regardless of whether it is horizontal or tilted, making the top stable as a dining table, reading table, etc. You can get something that fully functions as a table counter.

[Brief explanation of the drawing]

1 to 4 show an embodiment of the present invention, in which FIG. 1 is a front view, FIG. 2 is a side view, FIG. 3 is a sectional view taken along the cutting line - in FIG. 1, and FIG. 4
The figure is an enlarged sectional view of the main part. 1... Underframe, 2a, 2b... Support column, 7... Moving caster, 11a, 11b... Top plate support rod,
12a, 12b...height adjustment mechanism, 3...top plate,
15a, 15b...Metal fittings, 19...Pivot holes, 20
...Long hole.

Claims (1)

[Scope of utility model registration request] On the underframe 1 equipped with moving casters 7...
At least one pair of columns 2a and 2b are erected so as to be fixed at arbitrary height positions via height adjustment mechanisms 12a and 12b, respectively, and are arranged substantially parallel to each other from the upper ends of each column 2a and 2b. A pair of top plate support rods 11a, 11b extend substantially horizontally, while metal fittings 15a are provided on the back side of the top plate 3 to connect the top plate 3 and each of the top plate support rods 11a, 11b.
15b, a pivot hole 19 is formed in one metal fitting 15a, and a long hole 20 is formed in the other metal fitting 15b.
The pivot hole 19 is fitted into one of the top plate support rods 11a for pivotal support, the elongated hole 20 is fitted into the other top plate support rod 11b, and each of the top plate support rods 1
A movable table counter characterized in that a tension spring 22 is stretched between 1a and 11b.