WO2014032537A1

WO2014032537A1 - Folding chair

Info

Publication number: WO2014032537A1
Application number: PCT/CN2013/081895
Authority: WO
Inventors: 冷鹭浩
Original assignee: 厦门新技术集成有限公司
Priority date: 2012-08-28
Filing date: 2013-08-20
Publication date: 2014-03-06
Also published as: CN103040263A; US20150230614A1

Abstract

A folding chair comprises a seat board (10), a backrest (20), two front legs (30) and two rear legs (40). The upper parts of the two rear legs (40) respectively are connected with the rear parts of the left and right side edges of the seat board (10). The upper parts of the two front legs (30) are respectively connected with the middle parts of the left and right side edges of the seat board (10). The upper ends of the rear legs (40) are pivotably connected with the upper ends of the front legs (30). Said backrest (20) comprises a U-shaped tube (50). The U-shaped tube (50) comprises a U-shaped section (54) for fixing the backrest (20) and two fixing sections (52) which are used for connection with the two front legs (30) respectively. The two fixing sections (52) are each arranged so as to extend and slant outwards from the two open ends of the U-shaped section (54). The U-shaped section (54) and the front legs (30) are not arranged to be co-linear, the U-shaped section (54) being offset over the rear legs (40). The distance between the backrest (20) of the folding chair and the front end of the seat board (10) thereof is greatly increased, thus providing greater sitting depth and improving physical comfort.

Description

Folding chair

Technical field

The present invention relates to a folding chair.

Background technique

A chair is a kind of furniture commonly used in daily life, providing people with rest in a home, office, restaurant or other place. The Chinese Patent No. 200810071407.8, filed on Jul. 10, 2008, discloses a folding chair structure comprising: a first inverted U-shaped member bent from a straight rod into a U-shaped structure, The two shaft portions on the two sides of the U-shaped mouth containing the free ends are respectively set as two front legs; a second inverted U-shaped member, the second inverted U-shaped member is formed by a straight rod shorter than the first inverted U-shaped member Bent into a U-shaped structure, the two sides of the U-shaped mouth containing the free end are respectively set as two rear legs; a seat panel, the top of the second inverted U-shaped member is pivotally connected to the front connecting member and passes through The connector is fixed to the front of the seat panel. The middle portions of the two front legs of the first inverted U-shaped member are respectively pivotally connected to a rear connecting member, and the two rear connecting members are respectively slidably coupled to the two side edges of the seat plate, so that the seat plate slides relative to the rear connecting member. The position can be turned around the two front legs. The middle portions of the two rear legs of the second inverted U-shaped member are respectively pivotally connected with the middle and lower portions of the two front legs of the first inverted U-shaped member; and a seat back, the seat back is fixedly coupled to the first Between the tops of the two front legs of the inverted U-shaped member and connected to the U-shaped portion of the U-shaped non-free end of the first inverted U-shaped member.

However, the distance between the front end of the seat panel and the back of the chair is small, and the depth at which the user can sit on the folding chair is shallow, making it less comfortable to sit on the folding chair.

Summary of the invention

The present invention provides a more comfortable folding chair that overcomes the deficiencies of the prior art. The technical solution adopted by the present invention to solve the technical problems thereof is:

A folding chair comprises a seat plate, a backrest, two front legs and two rear legs, wherein the upper positions of the two rear legs are respectively connected with the rear portions of the left and right sides of the seat plate, and the upper positions of the two front legs are respectively respectively Connected to the middle of the left and right sides of the seat plate, the upper end of the rear leg is rotatably pivotally connected to the upper end of the front leg, the two sides of the backrest are respectively fixed section pipe fittings, the fixed section pipe fittings and two The front legs are connected and not in the same line, and the connection point is an inflection point.

The fixed section pipe member of the backrest is a U-shaped pipe member, and the U-shaped pipe member includes a U-shaped segment for fixing the backrest and a fixing segment for connecting with the two front legs respectively, the two fixing segments are respectively by the U Both ends of the segment opening extend obliquely outwardly, and the U-shaped segment is not in line with the front leg, and the U-shaped segment is offset toward the side of the rear leg.

In a preferred embodiment, the distance between the fixed segment and the seat plate is less than the distance between the fixed segment and the backrest.

In a preferred embodiment, the fixing portion includes a first connecting rod and a second connecting rod, the first connecting rod is fixed to the front leg, and the second connecting rod is connected to the U-shaped portion, the first connection The angle between the rod and the second connecting rod is an obtuse angle, and the angle between the second connecting rod and the U-shaped tubular member is an obtuse angle.

In a preferred embodiment, the diameters of the front leg, the first connecting rod, the second connecting rod and the U-shaped section are sequentially reduced.

In a preferred embodiment, the side of the upper end of the front leg is provided with an articulated ear, and the upper end of the rear leg is pivotally connected to the hinged ear, and the first connecting rod is inserted into the front leg.

In a preferred embodiment, the side of the upper end of the front leg is provided with an articulated ear, and the upper end of the rear leg is pivotally connected to the hinged ear, and the first connecting rod abuts the hinged ear.

In a preferred embodiment, a socket is further included, and the socket covers a portion where the front leg is connected to the fixing section.

Compared with the background art, the technical solution has the following advantages:

1. The U-shaped segment is not in line with the front leg, and the U-shaped segment is offset toward the side of the rear leg, which greatly increases the distance between the backrest and the front end of the seat plate, so that the folding chair has a larger Deep, thus improving the comfort of the human body.

2. The distance between the fixed section and the seat plate is smaller than the distance between the fixed section and the backrest, and the length of the front leg is effectively reduced. Due to the large force of the front leg, the front leg has more material during the production process. When the length of the front leg is reduced, the amount of the front leg can be naturally saved, so that the folding chair has low production cost. advantage.

3. Since the U-shaped section is offset toward the side of the hind leg, the distance between the backrest and the front end of the seat plate is greatly increased, so that the folding chair has a larger depth, and therefore, the front leg and the horizontal plane The angle can be made larger than the prior art, so that the force of the front leg can be reduced, so that the diameter of the front leg or the thickness of the tube wall can be reduced, and the amount of material of the front leg can be reduced to make the fold The chair has the advantage of low production costs.

4. The front leg has a small length, a small space, and is convenient to transport. At the same time, when the powder is sprayed, the quantity that can be accommodated at one time is large, which can greatly improve the efficiency of dusting and reduce the manufacturing cost. Moreover, the front leg and the U-shaped tubular member can be formed in different colors.

5. The diameters of the front leg, the first connecting rod, the second connecting rod and the U-shaped section are sequentially reduced, which reduces the material consumption of the U-shaped tubular member, and greatly saves the production cost of the product.

In addition, since the diameter of the U-shaped section is small, the U-shaped section is more easily bent into various shapes, and the curvature of bending can be made smaller.

6. The first connecting rod is inserted into the front leg and is quite convenient to assemble.

7. The first connecting rod abuts the hinged ear, and the U-shaped tubular member is further offset toward the rear leg side, so that the distance between the backrest and the front end of the seat plate is maximized to improve the comfort of the human body.

8. The sleeve covers the portion where the front leg is connected to the fixing section to make the structure firm.

DRAWINGS

The invention will now be further described with reference to the accompanying drawings and embodiments.

FIG. 1 is a perspective exploded view of a folding chair according to a preferred embodiment.

2 is a schematic overall view of the folding chair of FIG. 1.

3 is a side elevational view of the folding chair of FIG. 1.

4 is a perspective exploded view of a folding chair of another preferred embodiment.

detailed description

Referring to FIG. 1 , a first embodiment of a folding chair of the present invention includes a panel 10 , a backrest 20 , two front legs 30 , two rear legs 40 , a U-shaped tubular member 50 , and a set of connectors . 60.

The U-shaped tubular member 50 is used to fix the backrest 20. The U-shaped tubular member 50 includes two fixed sections 52 and a U-shaped section 54. The two fixing segments 52 are respectively extended obliquely outward from the ends of the opening of the U-shaped segment 54. The fixing section 52 is for fixing with the front leg 30. The fixing section 52 includes a first connecting rod 522 and a second connecting rod 524. The second connecting rod 524 is connected to the U-shaped segment 54. The angle between the first connecting rod 522 and the second connecting rod 524 is an obtuse angle. The angle between the second connecting rod 524 and the U-shaped segment 54 is an obtuse angle.

An auxiliary lug 32 is disposed on a side of the upper end of the front leg 30.

The socket 60 has a hollow tubular structure.

Referring to FIGS. 1 to 3, the backrest 20 is fixed to the U-shaped section 54. The upper positions of the two rear legs 40 are respectively connected to the rear portions of the left and right sides of the seat plate 10. The upper positions of the two front legs 30 are respectively connected to the middle portions of the left and right sides of the seat plate 10. The upper end of the rear leg 40 is pivotally coupled to the hinged ear 32 of the front leg 30. The rear leg 40 and the front leg 30 enclose a triangular shape. The socket 60 is sleeved on the upper end of the front leg 30. The first connecting rod 522 is inserted into the front leg 30 and fixed to the front leg 30. The socket 60 covers a portion where the front leg 30 is connected to the fixing section 52.

The U-shaped segment 54 is not in line with the front leg 30, and the U-shaped segment 54 is offset toward the rear leg 40 side, thereby increasing the distance L between the backrest 20 and the front end of the seat plate 10. Figure 3). Therefore, the folding chair 100 has a deeper depth and can provide better comfort for the user.

The diameters of the front leg 30, the first connecting rod 522, the second connecting rod 524, and the U-shaped segment 54 are sequentially reduced in sequence.

The distance between the fixed section 52 and the seat plate 10 is smaller than the distance between the fixed section 52 and the backrest 20.

Referring to Figure 4, there is shown a second embodiment of a folding chair of the present invention. The folding chair 100a is different from the first embodiment in that the first connecting rod 522 is not inserted into the front leg 30, and the first connecting rod 522 is abutted against the hinged ear 32. Of course, the first connecting rod 522 can be welded to the hinged ear 32. At the same time, in order to cover the portion where the front leg 30 is connected to the fixing portion 52, the socket member 60a is formed as two detachable symmetrical members.

The first connecting rod 522 is not inserted into the front leg 30, but is abutted against the hinged ear 32, further offsetting the U-shaped section 54 toward one side of the rear leg 40, so that the backrest 20 and the seat The distance at the front end of the panel 10 is maximized.

The above is only the preferred embodiment of the present invention, and thus the scope of the present invention is not limited thereto, that is, equivalent changes and modifications made in accordance with the scope of the invention and the contents of the specification should still be covered by the present invention. Within the scope.

Industrial applicability

The front section of the front leg of the present invention is not in the same straight line as the backrest section, and the connecting section of the backrest is offset toward the side of the rear leg, which greatly increases the distance between the backrest and the front end of the seat panel, so that the folding chair has a larger The depth of sitting increases the comfort of the folding chair.

Claims

A folding chair comprises a seat plate, a backrest, two front legs and two rear legs, wherein the upper positions of the two rear legs are respectively connected with the rear portions of the left and right sides of the seat plate, characterized in that: the two front legs The upper position of the rear leg is respectively connected to the middle of the left and right sides of the seat plate, and the upper end of the rear leg is rotatably pivotally connected to the upper end of the front leg, and the two sides of the backrest are respectively fixed section pipe fittings, and the fixing is performed. The segment pipe fitting is connected with the two front legs, and the fixed segment pipe member is not in line with the front leg, and the connection point is an inflection point.
A folding chair according to claim 1, wherein the tubular members on both sides of the backrest are U-shaped tubular members, and the U-shaped tubular members comprise U-shaped segments for fixing the backrests and for respectively a fixing section connected to the front leg, the two fixing sections are respectively extended obliquely outward from opposite ends of the opening of the U-shaped section, the U-shaped section is not in line with the front leg, and the U-shaped section is facing the rear leg Side offset.
A folding chair according to claim 2, wherein the distance between the fixing section and the seat plate is smaller than the distance between the fixing section and the backrest.
A folding chair according to claim 2 or 3, wherein the fixing portion comprises a first connecting rod and a second connecting rod, the first connecting rod is fixed to the front leg, and the second connecting rod is The U-shaped segment is connected, the angle between the first connecting rod and the second connecting rod is an obtuse angle, and the angle between the second connecting rod and the U-shaped tubular member is an obtuse angle.
The folding chair according to claim 4, wherein the front legs, the first connecting rods, the second connecting rods, and the U-shaped segments are sequentially reduced in diameter.
A folding chair according to claim 4, wherein the side of the upper end of the front leg is provided with an articulated ear, and the upper end of the rear leg is pivotally connected to the hinged ear, and the first connecting rod is inserted into the front leg.
The folding chair according to claim 4, wherein the side of the upper end of the front leg is provided with an articulated ear, and the upper end of the rear leg is pivotally connected to the hinged ear, and the first connecting rod abuts the hinged ear .
A folding chair according to claim 6, further comprising a socket covering the portion of the front leg that is connected to the fixing section.
A folding chair according to claim 7, further comprising a socket covering a portion where the front leg is coupled to the fixing section.