JPH0739582U - Locking structure of folding table - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] In the lock structure of the folding table, prevent your hands from being caught when folding. [Structure] The top plate 3 has a top plate support frame 4 fixed to the back surface thereof, and is pivotally attached P1 to the rear of a bracket 5. A long hole 7 extending in the longitudinal direction is bored in the bottom wall so as to communicate with the hollow portion of the pedestal 2, a sliding member 8 is fitted and inserted, and the upper end of the sliding member 8 is pivoted by a pivot P2 to form a top plate supporting frame. It is pivotally attached to 4. The sliding member 8 has a substantially U-shaped cross section, and a bottom wall is provided with a first receiving hole 9 for locking at the time of expansion and a second receiving hole 10 for locking at the time of folding. ing. Pedestal 2
A lock device having a projecting shaft biased in a direction of projecting into the hollow of the pedestal 2 and a grip portion for operating the projecting shaft is fixed to the outside of the base, and sliding is performed by operating the locking device. The top plate 3 can be locked via the member 8.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a table lock structure in which a base end side of a top plate is pivotally attached to a pedestal and a top end of a top plate on which a chair is arranged is bent upward to a folding position.

[0002]

[Prior art]

 The top plate of the table is folded by folding the top of the top plate on the side where the chairs are placed downwards.In that case, the chairs arranged along the table will collide with the top plate, so it will collide with the top plate. There is a drawback that it takes time to store. In addition, since the top of the top plate is greatly folded downward parallel to the pedestal, there was a drawback such as pinching your hand between the pedestal and the top plate.

[0003]

[Problems to be solved by the device]

 The present invention was devised in view of the above circumstances, and its main problem is to fold the tip of the top plate, which is the side on which the chair is arranged, upward, thereby making Another object of the present invention is to provide a lock structure for a folding table that eliminates the need for movement and prevents your hands from being caught when folding.

[0004]

[Means for solving problems]

 In order to solve the above problems, in the present invention, (a). The base end side of the top plate is pivotally attached to a pedestal made of pipe, and the top end of the top plate on which the chair is arranged is bent upward to fold the position. In the lock structure of the table to be, (b). A sliding member that is slidably built in the hollow of the pedestal and has a tip pivotally attached to the top plate is provided. (C). Attached to the pedestal A locking device having an actuating part whose tip is displaced in the hollow, (d) a receiving part formed on the sliding member and constrained by the actuating part at least at the folding position of the top plate. We are taking technical measures to establish it.

[0005]

[Action]

 When folding, fold the top plate so that the top end faces upward. The sliding member is displaced in association with the folding of the top plate. Since this sliding member is built into the pedestal, and the locking device is provided on the pedestal, when the folding member is folded, the actuating member is displaced and the receiving portion of the sliding member is actuated. And the folding position of the top plate can be locked. Further, if the auxiliary receiving portion that can be restrained when the top plate is deployed is formed on the sliding member, the top plate can be locked even when the top plate is deployed, and the stability can be improved.

[0006]

【Example】

 The lock structure of the folding table according to the present invention will be described below with reference to the drawings. As shown in FIG. 1 to FIG. 3, this folding table pivotally mounts a top plate 3 at a biased position on a pedestal 2 which is erected on a pair of left and right pedestals 1, respectively. It is composed of

The pedestal 2 is made of a pipe having an oval cross section (see FIG. 7), and a bracket 5 having a U-shaped cross section is fixed to the upper end. The top plate 3 has a top plate support frame 4 fixed to the back surface thereof, and the top plate support frame 4 is pivotally attached P1 to a pair of left and right protrusions 5a protruding rearward of the bracket 5.

The bracket 5 has a U-shaped groove 6 formed on one side (outside in the illustrated example) 5 b of its side wall. Further, an elongated hole 7 extending in the longitudinal direction is formed in the bottom wall 5d so as to communicate with the hollow portion of the pedestal 2.

As shown in FIGS. 4 and 5, a sliding member 8 is fitted and inserted in the hollow of the pedestal 2, and the upper end of the pedestal 2 is supported by the pivot P2 through the elongated hole 7 to support the top plate. It is pivotally attached to frame 4. The sliding member 8 has side walls 8b on the left and right of the bottom wall 8a so as to have a substantially U-shaped cross section, and has an abutting piece 8c at the lower end which projects in a direction opposite to the side wall 8b. . The bottom wall 8a is provided with a first receiving hole 9 serving as an auxiliary receiving portion in the upper portion and a second receiving hole 10 serving as a receiving portion in the lower portion. Here, the first receiving hole 9 is set at a position where the first receiving hole 9 is aligned with a later-described receiving portion 9 and penetrates when the top plate 3 is unfolded, and the second receiving hole 10 is formed by folding the top plate 3. When the tatami mat is used, it is aligned with the receiving part 9 and is set at a position where it penetrates.

On the other hand, a lock device 11 is fixedly provided outside the pedestal 2 (see FIGS. 5 and 7). In the present embodiment, the lock device 11 includes a protruding shaft 12 that is built in the base 11a so as to be retractable and is urged in a direction of protruding into the hollow of the pedestal 2, and a grip portion 13 that operates the protruding shaft 12. Have Here, the tip of the base portion 11a projects into the hollow of the pedestal 2 and is arranged at a position where it can collide with the tip of the side wall 8b of the sliding member 8.

With the above-described configuration, when the top plate is unfolded, the top plate support frame 4 is fitted into the bracket 5 as shown in FIGS. 4 and 5, and the pivot P2 is housed in the groove 6 so that the top plate is supported. The board is supported horizontally. Further, since the protruding shaft 12 of the lock device 11 penetrates the first receiving hole 9, the sliding member 8 is locked at the deployed position of the top plate 3.

Next, the grip portion 13 is pulled to pull out the protruding shaft 12 from the first receiving hole 9. As a result, the sliding member 8 becomes free and interlocks with the displacement of the top plate 3. The top plate 3 is folded so that its tip end faces upward (see FIG. 6). At this time, the sliding member 8 interlocking with the top plate is guided by the abutting piece 8c abutting against one inner wall surface of the pedestal 2 and the end edge of the side wall 8b abutting the other inner wall surface. , Slide inside the pedestal 2.

Further, the pulled-out protrusion 9 abuts the bottom wall 8a of the sliding member 8, and the left and right side walls 8b serve as a guide to displace the sliding member 8 in the folding direction. . Then, at the vertical position where the top plate 3 is folded, the second receiving hole 10 of the sliding member 8 aligns with the projection 9, and the projection 9 is pushed in by the urging force to lock the sliding member 8. The top plate 3 is locked at the folding position via the sliding member 8.

In the illustrated example, the base end of the shelf board 20 is pivotally attached P3 inside the pedestal 2, and the stay 21 is provided between the middle position of the shelf board 20 and the top plate support frame 4. Both ends are pivoted P4 and P5 respectively. Therefore, the top plate 3 can be unfolded and folded in conjunction with the pivotal movement of the unfolding and folding.

At this time, since the sliding member 8 projects from the hollow of the stanchion 2 on the outer side of the shelf board 20, there is no risk of obstructing the folding of the shelf board. In the above embodiment, the sliding member is provided with the first receiving hole and the second receiving hole, and the top plate is locked both when folded and when unfolded. In this invention, at least the top plate is folded and folded. It only needs to be locked. Further, the sliding member may slide in the pedestal in conjunction with the top plate. In this embodiment, the sliding locus is guided by the projection of the locking device, but a guide means is provided separately. May be.

[0016]

[Effect of device]

 In this invention, the top of the table can be folded upward and the table can be locked via the sliding member at the folded position, so that the table can be set up or stored without moving the chair arranged on the table. be able to. Also, since there are few top plates that are parallel to the pedestals, it is safe without pinching your hands. Furthermore, by incorporating a sliding member in the pedestal, it is possible to lock the top plate when folding and it is safe, and even if the shelf plate is attached, it does not interfere.

[Brief description of drawings]

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

FIG. 2 is a side view of the same in a developed state.

FIG. 3 is a side view of the same in a folded state.

FIG. 4 is a cross-sectional view of a main part as seen from the side at the time of deployment.

FIG. 5 is a cross-sectional view of the main parts as seen from the front when the product is developed.

FIG. 6 is a cross-sectional view of a main part when folded.

FIG. 7 is a cross-sectional view showing a locked state of the lock device.

[Explanation of symbols]

 2 pedestal 3 top plate 4 top plate support frame 5 bracket 7 elongated hole 8 sliding member 8a bottom wall 8b side wall 8c abutting piece 9 first receiving hole 10 second receiving hole 11 locking device 12 protruding shaft

Claims (4)

[Scope of utility model registration request] 1. A lock structure for a table in which a base end side of a top plate is pivotally attached to a pedestal made of a pipe, and a tip end of the top plate on which a chair is arranged is bent upward to a folding position. A sliding member that is slidably incorporated in the hollow and has a tip pivotally attached to a top plate; a locking device that is attached to a pedestal and that has an actuating portion that displaces the tip in the hollow; A lock structure for a folding table, which is formed on a moving member and includes at least a receiving portion that is constrained by the operating portion at a folding position of the top plate. 2. The sliding member has side walls on the left and right so as to have a substantially U-shaped cross section, and an abutment piece for abutting the inner wall surface of the pedestal to guide sliding of the sliding member. The actuating portion of the locking device is a protrusion that appears in and out of the hollow of the pedestal, and the protrusion is fitted in the groove formed between the side walls to guide the displacement of the sliding member. The locking structure for the folding table according to claim 1, wherein the projection is capable of being hooked on the receiving portion. 3. The lock structure for a folding table according to claim 2, wherein the sliding member is formed with an auxiliary receiving portion to which the projection can be hooked when the top plate is in the deployed position. . 4. A bracket having an inverted U-shaped cross section is fixed to the upper end of the pedestal, and a top plate supporting frame fixed to the lower surface of the top plate is pivotally attached, and the tip of the sliding member is the top plate. The lock structure for a folding table according to claim 1 or 2, wherein the lock structure is fixed to a support frame, and an elongated hole is formed on a bottom surface of the bracket for allowing a sliding member to pass therethrough.