JPH0541429U - Folding table - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] To provide a foldable table that can be locked or unlocked by simply sliding the top plate in the left-right direction. [Structure] Brackets (8, 9) having upper openings are provided on upper parts of a pair of pedestals (6, 7), and the top plate supporting frames (2, 3) are pivotally supported while being biased toward one of the tables, and the top plate (1) is folded. Freedom. The top plate supporting frames 2 and 3 are provided with fixing pins 20 projecting in the urging direction, and the brackets 8 and 9 are provided with engaging holes 10 and 13 into which the fixing pins 20 are inserted. The length of the fixing pin 20 is set to be slidable in the extracting direction. A through hole is formed in one of the brackets 8, and an operating lever 18 pivotally attached to the pedestal 6 is operated to insert the operating portion 18a into the through hole and move it in a direction opposite to the urging direction, thereby forming a frame. Slide 2 and 3 in the direction of removing the fixing pin 20. This releases the lock, and the top plate can be folded upright.

Description

[Detailed description of the device] [Industrial applications]

 The present invention relates to a folding table that can be folded by sliding a top plate support frame in a bracket without using a folding stay or the like to release the lock.

[0002]

[Prior Art]

 Conventionally, as a folding structure of a table, a structure is known in which a folding stay is slanted between a top plate support frame and a pedestal and locked at that position, but the space on the side of the table is restricted. However, there are drawbacks such as restrictions on structure and usage. Also, when the folding member is displaced along the side of the table in conjunction with the folding or unfolding of the other top plates, the space at the side is restricted because the locking is locked at the displaced position. There were problems such as the same drawbacks and the structural complexity.

[0003]

[Problems to be solved by the device]

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

[0004]

[Means for Solving the Problems]

 In order to solve the above problems, the present invention fits a top plate supporting frame provided on the lower surface of the top plate into a bracket having an upward groove formed at the upper ends of a pair of left and right pedestals, and pivots it. And a folding table in which the top plate can be folded into a vertical folding position and a horizontal unfolding position through the top plate supporting frame, the above brackets support the top plate supporting frame in the groove. A top plate support frame, which is sized to have a space slidable in a direction, is pivotally attached to the bracket by being urged to either the left or right side in the bracket. The bracket is fixed to the frame so as to project in the urging direction, and a fixing pin that can be retracted by sliding the frame is fixedly provided in an engaging hole formed in a wall surface of the bracket facing the frame when the top plate is deployed. Through holes are provided on the pedestal The work lever is pivotally attached, and the operating portion of the operation lever, when pivoting, abuts the top plate supporting frame in the bracket through the through hole and the fixing pin comes out of the engaging hole. The operation lever, which is set to be slidable on the support frame, has the technical means that the operating portion is urged in the direction away from the bracket.

[0005]

[Action]

 According to the folding table having the above structure, when the table is unfolded, the top plate support frame is fitted in the bracket and is urged to either the left or the right. Since the fixing pin projects into the engaging hole of the bracket by the biasing force, even if an upward force is applied to the top plate or the top plate support frame, the fixing pin is locked by the engagement. Therefore, when folding the top plate upright, the operation lever is pivoted so that the actuating part passes through the through hole and abuts against the top plate support frame, and the top plate support frame is opposed to the left and right of the table against the biasing force. Slide in the direction. As a result, the fixing pin is disengaged from the engaging hole, and the top plate supporting frame is pivoted about the pivotal mounting position of the bracket as a fulcrum, and the top plate supporting frame can be displaced and folded in the standing direction.

[0006]

【Example】

 The present invention will be described below with reference to the illustrated embodiments. 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 figures, reference numeral 1 denotes a top plate, and a pair of frames (first frame 2 and second frame 3) on both left and right sides and a pair of frames connecting front and rear ends on the lower surface of the top plate 1. A top plate supporting frame which is composed of (the third frame 4 and the 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. Further, a third frame 4 and a fourth frame 5 are attached to the front and rear of the lower surface of the top plate 1 so as to connect both ends of the first frame 2 and the second frame 3, respectively.

A pair of pedestals, that is, a first pedestal 6 and a second pedestal 7 are arranged below the left and right sides of the top plate 1 at positions slightly offset rearward. A first bracket 8 and a second bracket 9 are fixed to respective upper end portions of the top plate 7, and the top plate 1 is attached to the first frame 2 and the second frame 3 on both left and right sides by the pair of brackets 8 and 9. It is supported through (see FIGS. 3, 4, and 5).

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 have lateral widths so as to have a space for removing a fixing pin 20 (described later) formed on the first frame 2 and the second frame 3 from the through hole 10 (13). It is set. Then, the first frame 2 and the second frame 3 are supported together with the top plate 1 with the first frame 2 and the second frame 3 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 outer wall on the rear side, and on 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 spaced from each other. Further, as shown in FIG. 7, the side wall of the frame holding portion 9a of the second bracket 9 fixed to the second pedestal 7 is also provided with the engagement hole 13 in the rear inner wall and the front both sides. A pair of pivot mounting holes 14 are formed in the wall so as to be separated from each other.

As shown in FIGS. 5 to 7, the opposing brackets 8 and 9 are inserted at the time when the first and second frames 2 and 3 are pivoted so that the lower portions of the pivot attachment holes 11 and 14 are open. Then, it can be rotated 90 degrees about 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. I support you.

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

A coil spring (second spring body) 19 is wound around the pin 17 to urge the folding operation lever 18 so that its upper end is always separated from the first bracket 8. is doing. The folding operation lever 18 has an upper end bent in the direction of the first bracket 8 in a substantially L-shape to form an operating portion 18a. When the operating portion 18a rotates the folding operating lever 18. As shown in phantom in FIG. 3, the first frame 2 is slid inward by passing through the through hole 12 and appropriately contacting the outer surface of the first frame 2.

As shown in FIG. 4, a fixing pin 20 is fixed to a portion of the first frame 2 corresponding to the position of the engaging hole 10 so as to project toward the engaging 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. However, when the table is folded, the engagement hole 10 will be described later. To leave.

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

Further, as shown in FIG. 5, a turning pin 21 is provided so as to penetrate the first bracket 8 and the pivot mounting hole 11 in correspondence with the position of the pivot mounting hole 11. 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.

A coil spring is wound around the rotating pin 21 between the inner wall surface of the frame holding portion 8a of the first bracket 8 and the inner wall surface of the first frame 2 facing the coil spring. A (first spring body) 22 is provided so as to constantly press the first frame 2 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 provided with the same fixing pins and rotating pins as shown in FIGS. 4 and 5 in the same form. The second bracket 9 portion above the fitting hole 13 is also formed with a tapered surface 8b that expands upward similarly to the above, and a similar coil spring 22 is similarly provided. In a normal use state, the fixing pins 20 are fitted into the engagement holes 13 on the column side facing the engagement holes 10 by the action of the urging force of the coil spring 22, and 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. As shown in FIG. 3, the portion 18 a is inserted into the through hole 12 provided in the first bracket 8, and further abuts on the side surface of the central portion of the first frame 2 to resist the elasticity of the spring 22. The first frame 2 is moved in the direction opposite to the folding operation lever 18.

As a result, as shown in FIG. 9, the fitting between the fixing pin 20 and the engagement hole 10 is released, and the second frame 3 is also integrated via the first frame 2 and the top plate 1. Since the first frame 2 is moved, the second frame 3 is also interlocked with the folding operation lever 18 in the opposite direction at the same time as the first frame 2 is moved. The fitting with the hole 13 is released, and as a result, as shown in FIG. 11, the top plate 1 becomes rotatable about the pivot pin 21 as an axis, the top plate 1 is tilted, and finally, the top plate 1 is tilted as shown in FIG. As shown, the top plate 1 can be folded upright.

When the folded state is returned 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. And the top plate 1 is fixed horizontally. Since the folding table of the present invention folds the top plate vertically, 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 thereof, in which a shelf 23 is 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, when the top plate 1 is folded by operating the operation lever 18, the shelf 23 can also be interlocked to be folded by the pivotal movement of the top plate 1.

In the above embodiment, the second bracket 9 is provided with the engaging hole 13 and the fixing pin fixed to the second frame 3 is used for engagement. It is not necessary to provide the engagement hole 13 and the fixing pin on the side of the racket. In this case, the second bracket 9 may be set to have a lateral width that has a margin (space) in which at least the second frame 3 can slide in conjunction with the first frame 2. Of course, various design changes can be made without changing the gist of the present invention.

[0024]

[Effect of the device]

 As described in detail above, according to the folding table of the present invention, the folding mechanism can be built in the bracket, and the top plate can be moved by operating the operation lever provided on one side of the pedestal. The folding table can be folded vertically by simply sliding it horizontally. Therefore, it is not necessary to use a complicated folding metal fitting such as a conventional folding stay or a member that is displaced in association with the tilting of the table to partially close the side of the table. It is structurally simple and does not need to be upsized. Therefore, it is possible to use a table with a wide top plate, a table with shelves, or any other table with an arbitrary shape, and it is possible to enhance the versatility of the folding mechanism. Be beneficial.

[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 the 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 a 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 seen from above.

9 is a side view for explaining the operation of the first or second frame, corresponding to FIG.

10 is a side view for explaining 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 at 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 projects in the biasing direction to the top plate support frame. A fixing pin that can be retracted by sliding the frame is fixedly provided in an engagement hole formed in the wall surface of the bracket facing the top plate when the top plate is developed, 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 support frame in the bracket through the through hole, and the top plate support frame is set to be slidable until the fixing pin comes out of the engaging hole. The folding table in which the operating portion of the operating lever is urged 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 taper surface which is gradually inclined upward and wide from the engagement hole. [0001]