JP3018011U - Chair stacking device - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] The protective plate can be satisfactorily stacked below the stacking pipe with a circular cross section that is mounted on the supporting leg of the chair so that it can be effectively mounted. [Structure] A groove 2a extending over the entire length of the stacking pipe 2 is formed, and a concave portion 2b wider than the groove 2a is formed inside the groove 2a. In the center of the upper surface 3d of the soft plastic protective plate 3 which can come into contact with the outer peripheral surface of the lower side of the stacking pipe 2, the supporting portion 3a and the supporting portion 3a which can be fitted into the groove 2a and the concave portion 2b, respectively. Above the portion 3a, the substantially triangular engaging protrusion 3b, which is wider than the lateral width of the groove 2a, is formed on the protective plate 3.
Is formed integrally over the entire length of the protective plate 3, and a flat surface 3c is formed on the lower bottom surface of the central portion of the protective plate 3 in the lateral width direction, which is narrower than the lateral width of the entire protective plate 3 and becomes a horizontal surface. It is attached below and outside.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 TECHNICAL FIELD The present invention relates to a stacking device for a chair that allows the chairs to be stacked above the chair.

[0002]

[Prior art]

 Conventionally, it is constructed by horizontally stacking pipes that can be placed above the upper ends of both supporting leg rods on the inner upper part of both front and rear supporting leg rods that are hung vertically so that both lower end sides open toward the end. In the chair to be used, as seen in Japanese Utility Model Publication No. 6-41480, the reinforcing rod serving as a stacking pipe has a rectangular shape, and the upper and lower bottom surfaces of the protective plate that can be connected to the lower surface of the reinforcing rod are spread over the entire width. There is known a stacking protection member which is a horizontal plane and has hook-shaped locking pieces projecting inward at the center of the upper surface thereof.

[0003]

[Problems to be solved by the device]

 However, with such a structure, the center portions of both locking pieces of the protective member have to be pushed in so that they are aligned with the center portions of the single insertion grooves, so that it is difficult to attach them properly, which is troublesome. In addition, such a protection member has a shape that cannot be attached if the stacking pipe is formed in a circular cross section, and the stacking pipe having a circular cross section has a good shape on its lower surface. It presents a problem that it cannot be installed properly to fit.

[0004]

[Means for Solving the Problems]

 The present invention solves such a problem and enables a protective plate to be effectively stacked under a stacking pipe having a circular cross-section, so that both lower end sides of the stacking pipe can be spread out. A chair constructed by vertically stacking horizontal stacking pipes that can be placed above the upper end between both support rods on the inner upper part of both front and rear support rods that hang down to open. A groove extending over the entire length is formed on the lower surface of the stacking pipe formed on the front side of the stacking pipe, and a concave portion wider than the groove is formed inside the groove. A support part that can be fitted into the groove and the recess, respectively, is provided at the center of the upper surface of the soft plastic protective plate that can be in contact with the outer peripheral surface of the lower side of the stacking pipe. A substantially triangular engaging projection that is wider than the lateral width of the groove is integrally engaged or attached over the entire length of the protective plate, and the protective plate is formed on the lower bottom surface of the central portion in the lateral width direction of the protective plate. The flat plate is formed to be narrower than the entire width and to be a horizontal plane, and the protective plate is attached below the stacking pipe and at places where it may come into contact, such as inner and outer surfaces.

[0005]

[Action]

 Therefore, align the tips of the engagement protrusions that form a substantially regular triangular shape of the protective plate with the grooves on the bottom surface of the stacking pipe, change the position of the long protective plate in the longitudinal direction, and press it one after another while pressing the arc shape of the protective plate. Pushing until the upper surface abuts the lower outer peripheral surface of the circular stacking pipe, the engaging convex part fits into the concave part of the stacking pipe and can be engaged, and the lower circular arc outer periphery over the entire length of the stacking pipe. It will be easy to attach a long guard plate to the surface for good protection without coming off, and when stacking chairs, stacking pipes should be placed laterally above the upper end of the pedestal rod of the chair. Even if it is placed roughly by tilting it upside down, it will be possible to stack it so that it will not be scratched while being buffered by the soft plastic protective plate. It may have been orderly stable well placed so as not dislodged misaligned put the lower base side plane of the plate.

[0006]

【Example】

 FIG. 2 is a perspective view showing the entire chair. A back body A and a seat body B are attached to the inside of the upper part and the inside of the lower part of the upper frame 4 formed in an L-shape in a side view, respectively. On both lateral outer sides of the lower part of the upper frame 4, which is on both sides of the seat body B, the front and rear supporting leg rods 1 and 1 on both sides are horizontally formed by bending with square pipes so that both lower end sides open toward the end. The end portions 1a are arranged side by side and fixed, and a horizontal stacking pipe 2 in the shape of a round bar having a circular cross section is attached to the upper part between the two supporting leg rods 1 and 1 in the same manner as the conventional structure. Before stacking the stacking pipe 2, a shallow groove 2a extending over the entire length is formed on the lower surface below the axial center of the stacking pipe 2, and the inside of the groove 2a is formed. A recess 2a that is wider and deeper than the groove 2a is formed.

Reference numeral 3 denotes an entire protective plate made of soft plastic having substantially the same length as that of the stacking pipe 2, and an upper surface 3d of the protective plate 3 is a lower portion of the stacking pipe 2 on both lateral outer sides of the groove 2a. It is formed in an arc shape so that it can come into contact with the outer peripheral surface of the side arc shape, and the width is narrower than the lateral width of the groove 2a at the central portion of the upper surface 3d, and the height is substantially the same as the depth of the groove 2a. The support portion 3a is integrally formed over the entire length of the protective plate 3, and the upper portion of the support portion 3a is formed into a substantially triangular shape which is wider than the lateral width of the groove 2a and can be fitted into the recess 2b. The convex portion 3b is integrally formed, and a horizontal plane 3c having a lateral width L ₂ narrower than the lateral width L ₁ of the protective plate 3 is formed on the lower bottom surface of the central portion of the protective plate 3 in the lateral width direction. Form over the entire length of.

Therefore, while fitting the tip side of the engaging projection 3b of the protective plate 3 into the groove 2a of the stacking pipe 2, the long protective plate 3 is displaced in the longitudinal direction and pressed one after another. When the arcuate upper surface 3d of the protective plate 3 is pushed into contact with the lower arcuate outer peripheral surface of the stacking pipe 2, the engaging projection 3b is fitted into the recess 2b from the groove 2a of the stacking pipe 2 and is shown in FIG. As shown in the figure, it can be engaged in the recess 2b, and a long protective plate 3 can be joined to the lower arc-shaped outer peripheral surface over the entire length of the stacking pipe 2 so that it can be easily attached so that it can be protected well without coming off. It will be possible.

When stacking chairs, even if the stacking pipes 2 are tilted laterally on the upper end portion 1a of the supporting rod 1 of the lower chair and are placed roughly, the soft plastic protective plate 3 prevents It is possible to stack them while cushioning them so that they are not scratched. Also, as shown in Fig. 1, place the lower bottom flat surface 3c of the protection plate 3 on it and place it in an orderly and stable manner so that it will not be displaced or come off. It can be placed well.

[0010]

[Effect of device]

 As described above, according to the present invention, the tip of the substantially convex triangular engaging projection (3b) of the protective plate (3) is aligned with the groove (2a) of the lower surface of the stacking pipe (2), and the long protective plate is formed. While pushing (3) one after another while changing the position in the longitudinal direction and pushing it in until the arc-shaped upper surface (3d) of the protective plate (3) comes into contact with the lower outer peripheral surface of the circular stacking pipe (2), The engaging convex portion (3b) is fitted into the concave portion (2b) of the stacking pipe (2) so that it can be engaged, and a long protective plate (3) is formed on the lower arc-shaped outer peripheral surface over the entire length of the stacking pipe (2). ) Is attached so that it can be easily attached so that it does not come off and it is well protected, and when stacking chairs, stacking pipes (2) should be attached to the upper end of the supporting rod (1) of the lower chair. Even if it is placed roughly on the (1a) by tilting it laterally, it should be buffered by the soft plastic protective plate (3). However, it is possible to stack them so that they are not scratched. Also, place the lower bottom flat surface (3c) of the protective plate (3) on it in an orderly and stable manner so that it will not be displaced or come off. As a result, the stacking pipe (2) and the protective plate (3) can be easily manufactured with a simple structure, and the stacking pipe (2) and the protective plate (3) can be suitably implemented.

[Brief description of drawings]

FIG. 1 is a sectional view showing an essential part of an embodiment of the present invention.

FIG. 2 is a perspective view showing the entire chair.

FIG. 3 is a perspective view showing a part of FIG. 1 in an exploded manner.

FIG. 4 is a plan view showing a protective plate with a part thereof omitted.

FIG. 5 is a side view showing a protection plate with a part thereof omitted.

[Explanation of symbols]

 1 Support leg rod 1a Upper end 2 Stacking pipe 2a Groove 2b Recess 3 Protective plate 3a Support 3b Engagement protrusion 3c Plane 3d Top

Claims (1)

[Scope of utility model registration request] 1. A front and rear supporting leg rods (1) (1) on both sides which are vertically hung so that both lower end sides open toward the end, and both supporting leg rods are provided on the inner upper side.
(1) A stacking pipe (2) having a circular cross section in a chair constituted by horizontally mounting stacking pipes (2) that can be placed above the upper end (1a) between (1) A groove (2a) extending over the entire length is formed on the lower surface of the groove (2a), and a recess (2b) wider than the groove (2a) is formed inside the groove (2a). In the center of the arc-shaped upper surface (3d) of the soft plastic protective plate (3) that can come into contact with the outer peripheral surface on the lower side of the stacking pipes (2) on both lateral outer sides of the groove (2a ) And a concave portion (2b), and a supporting portion (3a) that can be fitted into the concave portion (2b), and a substantially triangular engaging convex portion (3b) that is wider than the lateral width of the groove (2a) above the supporting portion (3a). The protective plate (3) is integrally formed over the entire length, and the protective plate (3) is formed on the lower bottom surface of the central portion of the protective plate (3) in the widthwise direction.
A stacking device in which a flat surface (3c) that is narrower than the entire lateral width and becomes a horizontal surface is formed, and the protective plate (3) is attached below the stacking pipe (2).