JP3213951U - Flip-up steel chair - Google Patents

Abstract

A flip-up steel chair is provided.
A flip-up steel chair according to the present invention includes a main body, a backrest portion, and a seat portion. The main body has two rear leg portions, and the seat portion is made of an iron plate. Is lifted, the rear legs are folded, the space occupied after the present invention is folded is reduced, and as the seat is rotated to the sitting position, the two rear legs are When rotated to the deployed position, the bottom edge 31 of the seat abuts the tops of the two rear legs, and the center line of the bottom edges of the seats is the top of the two rear legs. In accordance with the center line of the base, the reinforcing structure is integrally formed and extends laterally to the bottom of the seat 30. This allows the seat to concentrate the force on the center of gravity of the two rear legs. The two rear legs effectively enhance the effect of supporting the seat, the reinforcing structure increases the structural strength of the seat, Even if the weight of the use's sitting present invention quite heavy and long, two rear Hoashi portion deformed torn does not occur, the seat portion does not generate recess or deformation.
[Selection] Figure 1

Description

  The present invention relates to a chair, and more particularly to a flip-up steel chair.

  A typical steel chair includes a main body, a seat portion, and a backrest portion. The main body includes a first support body and two rear legs, the seat is an iron plate, and is integrally formed on the inner side of the first support body, and the backrest portion is disposed on the inner side of the first support body. And is positioned above the seat.

  However, since the seat portion of the conventional steel chair and the first support body are integrally molded, they cannot be folded, occupy a considerable space for storage, and are not easy to carry.

  The center line of the bottom edge of the seat of the conventional steel chair does not match the center line of the top of the two rear legs, and the seat concentrates the force on the center of gravity of the two rear legs. If the user sits down for a long time because the user's weight is quite heavy, the two rear legs are likely to deform and tear.

  Furthermore, the seat of the conventional steel chair is an iron plate, its area is wide, its structural strength is slightly insufficient, and the two rear legs just abut against both sides of the bottom of the seat, If the present invention is seated for a long time because the support effect is slight and the weight of the user is quite heavy, the seat is likely to be depressed or deformed.

JP 2010-94192 A

  The main purpose of the present invention is that the seat part jumps upward and the two rear legs are folded, thereby reducing the space occupied after the present invention is folded, saving the storage space, and carrying it. It is also in providing a flip-up steel chair that is convenient.

  Another object of the present invention is that the seat can apply force concentrated on the center of gravity of the two rear legs, effectively increasing the effect of the two rear legs supporting the seat, It is an object of the present invention to provide a flip-up steel chair in which the two rear legs do not deform or tear even if the user is considerably heavy and sits down for a long time.

  Yet another object of the present invention is that the reinforcing structure increases the structural strength of the seat, and even if the user sits down for a long time because the weight of the user is quite heavy, the seat does not dent or deform. The object is to provide a flip-up steel chair that does not occur.

  In order to achieve the above-described object, a flip-up steel chair according to the present invention includes a main body, a backrest portion, and a seat portion.

  The main body includes a first support body and a second support body, and the first support body has one inverted U-shaped frame body and two front legs extending downward from both ends of the inverted U-shaped frame body. The second support body has two rear legs, and the two rear legs are pivoted inside the two front legs, respectively, and are deployed relative to the front legs. And between the folded position.

  The backrest portion is provided inside the inverted U-shaped frame.

  The seat is an iron plate, pivoted on the inside of the two front legs, and rotated between the sitting position and the folding position with respect to the first support part, and the width of the bottom edge thereof is two When the two rear legs are rotated to the deployed position as the seat is rotated to the seated position, the bottom of the seat is less than the width of the top of the rear leg. The edge abuts the top of the two rear legs, and the center line of the bottom edge of the seat matches the center line of the top of the two rear legs.

  Preferably, the bottom edge of the seat extends downward and is bent inward to form a curl structure, and the two rear legs as the seat is rotated to the seated position. Is rotated to the unfolded position, the curled structure of the bottom edge of the seat abuts the top of the two rear legs, and the bottom of the curled structure of the bottom edge of the seat The center line of the ends meets the center line of the tops of the two rear legs.

  Preferably, the flip-up steel chair further includes a reinforcement structure that is integrally formed and extends laterally to the bottom of the seat.

  Preferably, the reinforcing structure includes a connecting portion, two curved portions, and two extending portions, the connecting portions extend laterally to the bottom portion of the seat portion, and the two curved portions are respectively connected to the curved portion. Bending backward from both ends of the connecting portion, the two extending portions leave one end of the connecting portion from the two curved portions, and extend to the inside of the bottom edge of the seat portion. Located above.

  Preferably, the distance between the connecting portion and the front side of the seat portion is D1, the distance between the connecting portion and the rear side of the seat portion is D2, and D1 is larger than D2.

  Preferably, D1 is 1 / 4D2.

  Preferably, each of the rear legs includes an upper support portion, a lower support portion, a reinforcing structure, and a cushion cushion, and the upper support portion is provided outside the lower support portion and extends upward. Pivoted on the inside of the front legs, the reinforcing structure is provided on the inner side of the upper support part, the top part of which is aligned with the top part of the upper support part, and the cushioning cushion and the top part of the reinforcing structure Wrapping the top of the upper support together and defined as the tops of the two rear legs, the reinforcement structure and the upper support being respectively located on both sides of the centerline of the cushion cushion, Is in contact with the inner side surface of the upper support portion and is aligned with the center line of the cushion cushion, so that the center line of the cushion cushion is the center line of the top of the rear leg.

  Preferably, the first support body includes a limit lever and two baffle plates, the limit lever is integrally formed between the two front legs, and the two baffle plates are integrally molded with each other. Provided inside the two front legs, the two lower support portions are respectively positioned between the limit lever and the two baffle plates, and the seat portion is rotated to the sitting position. Accordingly, when the two rear legs are rotated to the deployed position, the two lower support portions abut on the limit lever, and the seat is rotated to the folding position. When the two rear legs are rotated to the folded position, the bottom edge of the seat vertically abuts the two baffle plates, and the two lower supports are perpendicular to the two Abut against baffle plate

  Preferably, a projection is provided on one side of each of the two lower support portions, each of the two projections is provided with a groove, and each of the two baffle plates is located in each of the two grooves. Is done.

  Preferably, the second bearing body includes a rod, which is integrally formed between the two reinforcing structures.

  The effect of the present invention is that the seat can be lifted upward and the two rear legs can be folded, so that the space occupied after the present invention is folded is reduced, the storage space is saved, and the carrying is carried. Also useful. It should be noted that the seat can concentrate force on the center of gravity of the two rear legs, effectively increasing the effect of the two rear legs supporting the seat, and the weight of the user is quite heavy. Even if the present invention is seated for a long time, the two rear legs do not deform or tear. Further, the reinforcing structure increases the structural strength of the seat, and even if the user sits down for a long time because the weight of the user is quite heavy, the seat does not dent or deform.

It is a slope view which shows the flip-up type steel chair which concerns on this invention. It is a perspective view shown from the other viewpoint of the flip-up type steel chair which concerns on this invention. It is an exploded view showing a flip-up steel chair according to the present invention. It is a bottom view which shows the bottom part of the seat part of the flip-up type steel chair which concerns on this invention, and the top part of a back leg part. It is a side view which shows the seat part and back leg part of the flip-up type steel chair which concern on this invention. It is sectional drawing seen along the AA line shown to FIG. 5A. It is a figure which shows the state which the centerline of the bottom edge of the seat part of the flip-up type steel chair which concerns on this invention unites the centerline of the top part of a back leg part. It is side surface sectional drawing which shows the spring type steel chair which concerns on this invention. It is a figure which shows the state by which the seat part of the flip-up type steel chair which concerns on this invention is flipped up. It is a figure which shows the state which the seat part of the flip-up type steel chair concerning this invention contact | abuts to a baffle plate. It is a figure which shows the state which both the seat part and back leg part of the flip-up type steel chair which concern on this invention contact | abut to a baffle plate.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings and reference numerals so that those skilled in the art can implement the invention according to the present invention.

  1 to 7, FIG. 1 is a slope view showing a flip-up steel chair according to the present invention, and FIG. 2 is a slope view from another viewpoint of the flip-up steel chair according to the present invention. FIG. 3 is an exploded view showing a flip-up steel chair according to the present invention, and FIG. 4 shows the bottom of the seat and the top of the rear leg of the flip-up steel chair according to the present invention. FIG. 5A is a side view showing a seat part and a rear leg part of a flip-up steel chair according to the present invention, and FIG. 5B is a cross-sectional view taken along line AA shown in FIG. 5A. FIG. 6 is a view showing a state where the center line of the bottom edge of the seat portion of the flip-up steel chair according to the present invention is aligned with the center line of the top portion of the rear leg, and FIG. It is side surface sectional drawing which shows the spring type steel chair which concerns. An object of the present invention is to provide a flip-up steel chair including a main body 10, a backrest 20 and a seat 30.

The main body 10 includes a first bearing body 11 and a second bearing body 12. The first support body 11 has one inverted U-shaped frame body 111 and two front leg portions 112, and the two front leg portions 112 extend downward from both ends of the inverted U-shaped frame body 111. . The second support body 12 has two rear legs 121, and the two rear legs 121 are pivoted inside the two front legs 112, respectively, and are deployed with respect to the front legs 112. Rotated between the position and the folded position, as shown in FIGS.
More specifically, each of the rear legs 121 includes an upper support portion 1211, a lower support portion 1212, a reinforcing structure 1213, and a cushion cushion 1214, as shown in FIGS. 1 and 2. The upper support portion 1211 is provided outside the lower support portion 1212, extends upward, and is pivotally provided inside the two front legs 112. The reinforcing structure 1213 is provided inside the upper support portion 1211, and the top portion thereof is aligned with the top portion of the upper support portion 1211. The cushion cushion 1214 is defined as the tops of the two rear legs 121 wrapping together the top of the reinforcing structure 1213 and the top of the upper support 1211, as in FIGS. 1, 2, 5 A, and 5 B. Shown in The reinforcing structure 1213 and the upper support portion 1211 are respectively positioned on both sides of the center line L1 of the shock absorbing cushion 1214, and the outer surface of the reinforcing structure 1213 is in contact with the inner side surface of the upper supporting portion 1211 and the shock absorbing cushion. In order to match the center line L1 of 1214, the center line L1 of the cushion cushion 1214 is the center line L1 of the top of the rear leg 121, as shown in FIG. 5B and FIG. The second support 12 includes a rod 122, which is integrally formed between the two reinforcing structures 1213 and is shown in FIG.

  The backrest 20 is provided inside the inverted U-shaped frame 111 and is shown in FIG.

  The seat 30 is an iron plate, pivoted on the inner side of the two front legs 112, and rotated between the sitting position and the folded position with respect to the first support portion 11, from FIGS. As shown in FIG. The width of the bottom edge 31 of the seat 30 is smaller than the width of the tops of the two rear legs 121, and the two rear legs 121 as the seat 30 is rotated to the sitting position. Is rotated to the unfolded position, the bottom edge 31 of the seat 30 abuts the tops of the two rear legs 121, and the center line of the bottom edge 31 of the seat 30 is 2 FIG. 4 to FIG. 6 are shown in accordance with the center line of the tops of the two rear legs 121. More specifically, the bottom edge 31 of the seat 30 extends downward and is bent inward to form a curled structure 311, with the seat 30 being rotated to the seated position. When the two rear legs 121 are rotated to the deployed position, the curl structure 311 of the bottom edge 31 of the seat 30 abuts against the tops of the two rear legs 121, and the seat The center line of the bottom end of the curl structure 311 of the bottom edge 31 of the portion 30 is aligned with the center line of the tops of the two rear legs 121, as shown in FIGS. Accordingly, the seat 30 can apply force to the center of gravity of the two rear legs 121, and the effect of the two rear legs 121 supporting the seat 30 can be effectively enhanced and used. Even if the person's weight is quite heavy and the present invention is seated for a long time, the two rear legs 121 do not deform or tear.

  The two reinforcing structures 1213 bear half of the downward pressure from the seat portion 30 together with the two upper support portions 1211, that is, even if the user's center of gravity is biased to one side of the seat portion 30, One reinforcing structure 1213 transmits a portion of the downward pressure of the seat portion 30 through the rod 122 and the other reinforcing structure 1213 to the upper support portion 1211 of the other rear leg 121, and the seat portion 30. It is possible to avoid that the downward pressing pressure is excessively concentrated on the upper support portion 1211 of the single rear leg 121 and the upper support portion 1211 of the single rear leg 121 may be deformed or torn. Can be lowered.

  In a preferred embodiment, the flip-up steel chair according to the present invention further includes a reinforcing structure 40 that is integrally formed and extends laterally to the bottom of the seat 30, as shown in FIGS. 2, 4, and 5 B. Shown in More specifically, the reinforcing structure 40 includes a connecting portion 41, two curved portions 42, and two extending portions 43, and the connecting portion 41 extends laterally to the bottom of the seat portion 30, The two curved portions 42 are respectively bent backward from the both ends of the connecting portion 41, and the two extending portions 43 are separated from the one end of the connecting portion 41 by the two curved portions 42, respectively, and the seat portion 30. Is extended above the bottom edge 31 and is positioned above the curl structure 311. As a result, the reinforcing structure 40 increases the structural strength of the seat portion 30, and the seat portion 30 does not dent or deform even if the user sits down for a long time because the weight of the user is quite heavy. Preferably, the distance between the connecting part 41 and the front side of the seat part 30 is D1, the distance between the connecting part 41 and the rear side of the seat part 30 is D2, and D1 is larger than D2, The effect of the reinforcement structure 40 increasing the strength of the seat 30 is better, as shown in FIG. In particular, when D1 is 1 / 4D2, it is desirable that the reinforcing structure 40 increase the strength of the seat portion 30.

  The first support body 11 further includes a limit lever 113 and two baffle plates 114. The limit lever 113 is integrally formed between the two front legs 112 and is provided with the two lower support portions. A projection 12121 is provided on each side of the 1212, and a groove 12122 is provided in each of the two projections 12121, and the two baffle plates 114 are integrally formed on the inside of the two front legs 112. The seat portion 30 is provided by being positioned in the two concave grooves 12122 and the two lower support portions 1212 being positioned between the limit lever 113 and the two baffle plates 114 respectively. The range of rotation of the two rear legs 121 is limited as shown in FIGS. 3 and 7 to 10. Referring to FIGS. 1 and 7, when the two rear legs 121 are rotated to the deployed position as the seat 30 is rotated to the sitting position, the two lower support portions are 1212 contacts the limit lever 113. With reference to FIGS. 8 to 10, when the two rear legs 121 are rotated to the folding position as the seat 30 is rotated to the folding position, The bottom edge 31 vertically abuts against the two baffle plates 114, and the two lower support portions 1212 abut against the two baffle plates 114 vertically, thereby occupying space after the present invention is folded. It saves storage space and is convenient to carry.

  The above description is a detailed description of one embodiment of the present invention and does not limit the scope of the present invention. Even if changes and adjustments are made within the scope of the present invention, the important significance of the present invention is not lost and is included in the scope of the present invention.

DESCRIPTION OF SYMBOLS 10 ... Main body 11 ... 1st support body 111 ... Reverse U character type frame body 112 ... Front leg part 113 ... Limit lever 114 ... Baffle plate 12 ... 2nd support body 121 ... Back leg part 1211 ...... Upper support portion 1212 ...... Lower support portion 12121 ...... Protrusion 12122 ...... Dove groove 1213 ...... Strengthening structure 1214 ...... Buffer cushion 122 ...... Rod 20 ...... Backrest portion 30 ...... Seat portion 31 ...... Bottom edge 311 …… Curl structure 40 …… Reinforcement structure 41 …… Connecting portion 42 …… Bending portion 43 …… Extension portion D1 to D2 …… Distance L1 …… Center line

Claims (10)

Including a body, a backrest and a seat,
The main body includes a first support body and a second support body, and the first support body has one inverted U-shaped frame body and two front legs extending downward from both ends of the inverted U-shaped frame body. The second support body has two rear legs, and the two rear legs are pivoted inside the two front legs, respectively, and are deployed relative to the front legs. And the folding position,
The backrest is provided inside the inverted U-shaped frame;
The seat is an iron plate, pivoted on the inside of the two front legs, and rotated between the sitting position and the folding position with respect to the first support part, and the width of the bottom edge thereof is two When the two rear legs are rotated to the deployed position as the seat is rotated to the seated position, the bottom of the seat is less than the width of the top of the rear leg. Made of flip-up steel, wherein the edge abuts the top of the two rear legs, and the center line of the bottom edge of the seat is aligned with the center line of the tops of the two rear legs Chair.   The bottom edge of the seat extends downward and is bent inward to form a curl structure, and the two rear legs are deployed as the seat is rotated to the sitting position. When rotated to the position, the curl structure at the bottom edge of the seat abuts the top of the two rear legs, and the center of the bottom edge of the curl structure at the bottom edge of the seat 2. A flip-up steel chair according to claim 1, wherein the line is aligned with the center line of the top of the two rear legs.   The flip-up steel chair according to claim 2, further comprising a reinforcing structure that is integrally molded and extends laterally at the bottom of the seat.   The reinforcing structure includes a connecting portion, two curved portions, and two extending portions, the connecting portions extend laterally to the bottom of the seat portion, and the two curved portions are respectively connected to the connecting portions. Bending backward from both ends, each of the two extending portions leaves one end of the connecting portion from the two curved portions, and extends to the inside of the bottom edge of the seat and is positioned above the curl structure The flip-up steel chair according to claim 3, wherein the steel chair is flip-up steel.   The distance between the connecting portion and the front side of the seat portion is D1, the distance between the connecting portion and the rear side of the seat portion is D2, and D1 is larger than D2. Upholstered steel chair.   The flip-up steel chair according to claim 5, wherein D1 is 1 / 4D2.   Each of the rear legs includes an upper support portion, a lower support portion, a reinforcing structure, and a cushion cushion, and the upper support portion is provided outside the lower support portion and extends upward to extend the two front portions. Pivoted on the inner side of the leg, the reinforcing structure is provided on the inner side of the upper support part, the top part of which is aligned with the top part of the upper support part, and the cushion cushion is provided on the top part of the reinforcing structure and the upper support part. Are defined as the tops of the two rear legs, the reinforcing structure and the upper support are respectively located on both sides of the center line of the cushion cushion, and the outer surface of the reinforcing structure is The center line of the cushion cushion is the center line of the top of the rear leg, so as to abut the inner surface of the support portion and match the center line of the cushion cushion. A flip-up steel chair according to any one of the above.   The first support body includes a limit lever and two baffle plates, and the limit lever is integrally formed between the two front legs, and the two baffle plates are integrally molded to each of the two baffle plates. Provided on the inner side of the front leg, the two lower support parts are respectively positioned between the limit lever and the two baffle plates, and the seat part is rotated to the sitting position. When the two rear legs are rotated to the deployed position, the two lower support portions abut against the limit lever, and the two seats are rotated to the folded position. When the rear leg is rotated to the folded position, the bottom edge of the seat abuts the two baffle plates vertically, and the two lower support portions vertically contact the two baffle plates. It features to abut Flip-up steel chair according to claim 7 that.   Protrusions are provided on one side of the two lower support parts, concave grooves are provided in the two protrusions, and the two baffle plates are respectively positioned in the two concave grooves. The flip-up steel chair according to claim 8.   The flip-up steel chair according to claim 7, wherein the second support body includes a rod, and the rod is integrally formed between the two reinforcing structures.