JPH0642496Y2 - Folding table - Google Patents

Description

[Detailed description of the device]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a folding table that can be folded by sliding a top plate supporting frame in a bracket without using a folding stay or the like to release the lock.

[0002]

2. Description of the Related Art Conventionally, as a folding structure of a table, there has been known a structure in which a folding stay is slanted between a top plate supporting frame and a pedestal and locked at that position. However, there is a drawback that the space on one side is restricted and the structure and usage are restricted. Also, when the folding member is displaced along the side of the table in conjunction with folding or unfolding of the other top plate, it locks at the displaced position, so the side space is restricted and the same as above. With the drawback of
There was a problem that the structure became complicated.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and can be locked or unlocked within a bracket by simply sliding the top plate support frame slightly to the left or right. Intended to provide a folding table with a simple structure.

[0004]

In order to solve the above problems, the present invention provides a top plate support frame provided on the lower surface of a top plate with an upward groove formed at the upper ends of a pair of left and right pedestals. In a folding table that is fitted and pivotally attached to a bracket that has, and the top plate can be folded into a vertical folding position and a horizontal unfolding position via a top plate supporting frame, The top plate support frame is set to a size having a space slidable in the left-right direction, and the top plate support frame is biased to either the left or right side in the bracket and is pivotally attached to the bracket. Fixing a fixing pin projecting in the urging direction of the top plate supporting frame and fixed to an engaging hole formed in a wall surface facing the bracket when the top plate is expanded, the fixing pin being retractable by sliding of the frame; On the bracket A hole is provided, and an operation lever is pivotally attached to the pedestal, and when the operation lever is pivoted, it abuts the top plate support frame in the bracket through the through hole and the fixing pin engages. The operation lever is set so that the top plate support frame can slide to the position where it comes out of the dowel hole.
A technical measure is taken such that the operating portion is biased in a direction away from the bracket.

[0005]

According to the folding table having the above structure, the top plate supporting frame is fitted in the bracket when the table is unfolded, and is biased to either the left or the right.
Since the fixing pin projects into the engaging hole of the bracket by the biasing force, it is locked by the engagement even if an upward force is applied to the top plate or the top plate support frame.
Therefore, when folding the top plate upright, the operation lever is pivoted to allow the operating part to pass through the through hole to abut against the top plate support frame, and the top plate support frame is moved in the left-right direction of the table against the biasing force. Slide to. As a result, the fixing pin is disengaged from the engaging hole, and the top plate supporting frame is pivoted about the pivot position of the bracket as a fulcrum, and the top plate supporting frame can be displaced and folded in the standing direction.

[0006]

The present invention will be described below with reference to the illustrated embodiments. FIG. 1 is a front view of a folding table according to an embodiment of the present invention, and FIG. 2 is a side view thereof. In these drawings, reference numeral 1 denotes a top plate, and on the lower surface of the top plate 1, a pair of left and right frames (first frame 2 and second frame 3) and a pair of frames connecting front and rear ends thereof ( A top plate support frame, which is composed of a third frame 4 and a fourth frame 5) and forms a rectangle, is fixedly installed.

That is, the first frame 2 and the second frame 3 are provided in parallel with each other. See also 1
The third frame 4 and the fourth frame 5 are also attached to the front and back of the lower surface so as to connect both ends of the first frame 2 and the second frame 3, respectively.

Below the left and right sides of the top plate 1, a pair of pedestals,
That is, the first pedestal 6 and the second pedestal 7 are arranged at positions slightly offset rearward, and the first bracket 8 and the second bracket 8 are respectively provided at the upper ends of the pedestals 6 and 7. 9 is fixed, and the top plate 1 is supported by the pair of brackets 8 and 9 via the first frame 2 and the second frame 3 on both left and right sides (FIGS. 3, 4, and 5).
reference).

More specifically, as shown in FIGS. 4 and 5, the first bracket 8 and the second bracket 9 are provided so as to extend in a direction perpendicular to the longitudinal direction of the pedestals 6 and 7. And has frame holding portions 8a and 9a each having a channel-shaped cross section that opens upward. These frame holding portions 8a and 9a are respectively the above-mentioned first
The lateral width is set so as to have a space for removing a fixing pin 20 (described later) formed on the frame 2 and the second frame 3 from the through hole 10 (13). Then, the first frame 2 and the second frame 3 are supported together with the top plate 1 in a state where the first frame 2 and the second frame 3 are fitted and inserted into the frame holding portions 8a and 9a, respectively. (See FIGS. 4 and 5).

As shown in FIG. 6, on the side wall of the frame holding portion 8a of the first bracket 8 fixed to the first pedestal 6, an engaging hole 10 is formed in the rear outer wall and the front side. A pair of pivot mounting holes 11 are bored in both the inner and outer walls, and a through hole 12 is formed at a substantially intermediate portion between the engaging hole 10 and the pivot mounting hole 11 so as to be separated from each other. Further, as shown in FIG. 7, engagement holes 13 are formed in the rear inner wall of the side wall of the frame holding portion 9a of the second bracket 9 fixed to the second pedestal 7, and both front walls are formed. A pair of pivot mounting holes 14 are formed at a distance from each other.

As shown in FIGS. 5 to 7, the brackets 8 and 9 facing each other are opened at lower portions of the pivot mounting holes 11 and 14, and are inserted through when the first and second frames 2 and 3 are pivoted. Then, it can rotate 90 degrees around the above position. As shown in FIG. 2, pedestals 15 are fixed to the lower ends of the first pedestal 6 and the second pedestal 7, respectively, and vertically support the pedestals 6 and 7. ing.

Next, in the vicinity of the upper part of the outer wall surface of the first pedestal 6, a horizontally inverted U-shaped receiving metal fitting 16 is provided so as to project, as shown in FIGS. 3 and 6. On the other hand, at a midway position of the operation lever 18, a pair of arm pieces 18 orthogonal to the inside from both left and right sides are provided.
b is integrally bent and projected, and the folding operation lever 18 is rotatably supported by a pin 17 penetrating the receiving metal fitting 16 and the arm piece 18b as a pivot.

A coil spring (second spring body) 19 is wound around the pin 17 to urge the folding operation lever 18 so that the upper end thereof is always separated from the first bracket 8. is doing. This folding operation lever 18
The upper end portion is bent in the direction of the first bracket 8 in a substantially L shape to form an operating portion 18a, and when this operating portion 18a rotates the folding operation lever 18, it is indicated by an imaginary line in FIG. As shown in the drawing, it passes through the through hole 12 and appropriately contacts the outer surface of the first frame 2 to slide the first frame 2 inward.

As shown in FIG. 4, the fixing pin 20 is attached to the first frame 2 at a portion corresponding to the position of the engaging hole 10.
It is fixed so as to project toward the engagement hole 10 side.
The fixing pin 20 is inserted into the engagement hole 10 as shown in FIG. 4 when the table is used to fix the top plate 1 in a horizontal state. It is supposed to leave.

The first bracket 8 portion above the engagement hole 10 is formed with a tapered surface 8b which expands upward as shown in FIG. 4 or 8, and the top plate 1 is folded as will be described later. When returning from the state to the horizontal state of use, the fixed pin 20 slides on the tapered surface 8b and automatically fits into the engagement hole 10.

Further, as shown in FIG. 5, the pivot mounting hole 1
The rotation pin 21 is provided so as to penetrate the first bracket 8 and the pivot mounting hole 11 in correspondence with the position 1. That is, the first bracket 8 is pivotally supported by the rotating pin 21 and is slidable in the lateral direction within the first bracket 8.

The frame holding portion 8a of the first bracket 8
A coil spring (first spring body) 22 is provided between the inner wall surface of the first frame 2 and the inner wall surface of the first frame 2 facing the inner wall surface of the first frame 2 so as to wind around the rotary pin 21. Thus, the first frame 2 is constantly pressed in the first bracket 8 toward the engagement hole 10, the pivot mounting hole 11 and the through hole 12.

Although not shown separately, the second bracket 9 and the second frame 3 are also attached to the above-mentioned FIG. 4 and FIG.
A fixed pin and a rotary pin similar to those shown in FIG. 2 are provided in the same form, and the second bracket 9 portion above the engagement hole 13 is also formed with a tapered surface 8b that expands upward similarly to the above, and further the same. The coil spring 22 is similarly provided. In a normal use state, the urging force of the coil spring 22 causes the fixing pins 20 to engage with the engagement holes 13 on the pedestal side facing the engagement holes 10, respectively, so that the table is kept horizontal.

When folding this table, first, the upper end of the folding operation lever 18 is actuated by rotating the lower end of the folding operation lever 18 provided on one side of the first pedestal 6 so as to lift it. The portion 18a is inserted into the through hole 12 provided in the first bracket 8 as shown in FIG.
Further, the first frame 2 is brought into contact with the side surface of the central portion of the first frame 2 to move the first frame 2 in the direction opposite to the folding operation lever 18 against the elasticity of the spring 22.

As a result, as shown in FIG. 9, the fixing pin 2
0 is disengaged from the engagement hole 10, and the second frame 3 is also integrally formed with the first frame 2 via the top plate 1, so that the first frame 2 moves. At the same time, the second frame 3 also interlocks with the folding operation lever 18 in the opposite direction, whereby the engagement between the fixing pin 20 and the engagement hole 13 on the pedestal side facing the fixing pin 20 is released, and as a result, as shown in FIG. As shown in, the top plate 1 is rotatable about the rotation pin 21 as an axis,
The top plate 1 is tilted, and finally the top plate 1 as shown in FIG.
Can be folded upright.

When returning from the folded state to the used state, the top plate 1 is rotated in the opposite direction again so that the fixing pin 20 slides on the tapered surface 8b and is automatically fitted into the engaging hole 10. Then
The top plate 1 is fixed horizontally. In addition, since the folding table of the present invention is configured such that the top plate is vertically folded, it is possible to automatically fold the shelf at the same time as the top plate even when the shelf is connected below the top plate. .

FIG. 13 shows an example of this, and the shelf 23
Are connected to and supported by the top plate 1 via a link mechanism 24. The rest of the configuration is the same as that of the above-mentioned embodiment, so its explanation is omitted. Here, the link mechanism has no risk of overlapping with the folding mechanism. With the above configuration, the operation lever 1
When the top plate 1 is folded by the operation of 8, the top plate 1 is pivoted so that the shelf 23 can also be interlocked to be folded.

In the above embodiment, the second bracket 9 is used.
Although the engaging hole 13 is provided in the second frame 3 to engage with the fixing pin fixed to the second frame 3, the engaging hole 13 and the fixing pin need not be provided on the second bracket side. Good. In this case, the second bracket 9 only needs to be set to have a lateral width in which at least the second frame 3 has a margin (space) in which the second frame 3 can slide in conjunction with the first frame 2. In addition, it goes without saying that various design changes can be made without changing the gist of the present invention.

[0024]

As described in detail above, according to the folding table of the present invention, the folding mechanism can be built in the bracket, and can be operated by operating the operation lever provided on one side of the pedestal. , You can fold the folding table vertically just by sliding the top plate left and right. Therefore, it is not necessary to use a complicated folding metal fitting such as a folding stay or a member that is displaced in association with the tilting of the table to dispose the table so as to partially close the side of the table. Is simple and does not need to be upsized. Therefore, it is possible to use even a table with a wide top plate, a table with shelves, or a table with a top plate of any shape, and it is possible to enhance the versatility of the folding mechanism, which is extremely useful. Is.

[Brief description of drawings]

FIG. 1 is a front view of a folding table according to an embodiment of the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is a side view showing a first pedestal portion of the table of FIG. 1 as a partial cross section.

4 is a cross-sectional view showing an engaging hole portion of a first pedestal of the table of FIG.

5 is a sectional view showing a pivot mounting hole portion of a first pedestal of the table of FIG. 1. FIG.

6 is a side view showing a first bracket portion of the table of FIG. 1. FIG.

7 is a side view showing the second bracket portion of the table of FIG. 1. FIG.

8 is a plan view of the first or second bracket shown in FIG. 6 or 7 as viewed from above.

9 is a side view illustrating the operation of the first or second frame corresponding to FIG. 4. FIG.

FIG. 10 is a side view illustrating the operation of the first or second frame corresponding to FIG.

FIG. 11 is a side view showing the rotating operation of the top plate.

FIG. 12 is a side view showing a folded state of the top plate.

FIG. 13 is a side view of a folding table according to another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Top plate 2 1st frame 3 2nd frame 4 3rd frame 5 4th frame 6 1st pedestal 7 2nd pedestal 8 1st bracket 9 2nd bracket 10 Engagement hole 11 Axis mounting hole 12 Through hole 13 Engagement hole 14 Axis mounting hole 15 Footrest 16 Receiving metal fitting 17 Pin 18 Operating lever 19 Coil spring (second spring body) 20 Fixing pin 21 Rotating pin 22 Coil spring (first spring) Body) 23 shelves

Claims (2)

[Scope of utility model registration request] 1. A top plate supporting frame provided on the lower surface of the top plate is fitted and pivotally attached to a bracket having an upward groove formed on the upper ends of a pair of left and right pedestals to pivotally attach the top plate. In a folding table that can be folded into a vertical folding position and a horizontal unfolding position via a top plate support frame, a space where the above bracket can slide the top plate support frame in the left and right directions in the groove. The top plate support frame is biased to either the left or right side in the bracket and is pivotally attached to the bracket, and the top plate support frame protrudes in the biasing direction of the top plate support frame. A fixing pin that can be retracted by sliding the frame is fixedly provided in an engagement hole formed on the opposite wall surface of the bracket when the top plate is unfolded, a through hole is provided in the bracket, and an operation lever is provided on the pedestal. Pivot, the operation When the lever operation portion pivots, it abuts the top plate supporting frame in the bracket through the through hole, and the top pin supporting frame is slidable until the fixing pin comes out of the engaging hole. The folding table in which the operating portion of the operating lever is biased in a direction away from the bracket. 2. The folding table according to claim 1, wherein the wall surface of the bracket in which the engagement hole is formed is set to a tapered surface that gradually inclines upward from the engagement hole. [0001]