CN201452330U

CN201452330U - Metal seat basin structure of office chair

Info

Publication number: CN201452330U
Application number: CN2009201280343U
Authority: CN
Inventors: 童志攀; 陈卫军
Original assignee: Chongqing Yanfeng Johnson Controls Automotive Components Co Ltd
Current assignee: Chongqing Yanfeng Adient Automotive Components Co Ltd
Priority date: 2009-07-14
Filing date: 2009-07-14
Publication date: 2010-05-12
Anticipated expiration: 2019-07-14

Abstract

The utility model provides a metal seat basin-shaped structure of an office chair, which is an integral stamping piece and is of a basin shape. A concave central area, close to the rear part, is arranged at the middle part of the seat basin; side edge areas are symmetrically arranged on the left side and the right side; a front edge area is arranged on the front side; and the range r of the central area is 70mm to 130 mm, wherein r takes a support center point of the seat base as the center. The offset between the central area and the left and right side edge areas ranges from 40mm to 60mm; the front edge area is slightly lower than the left and right edge areas; various areas are in linear uniform transition; and a reinforcing steel bar is integrally stamped on the seat basin, disperses from the central area to the surrounding and extends to the left side edge areas and the front edge area. The metal seat basin-shaped structure of the office chair can replace the traditional seat basin structure of plywood, improve the safety and the comfort of the office chair and simultaneously reduce the usage amount of foam.

Description

A kind of office seating metal pedestal basin structure

Technical field

The utility model relates to field of furniture, is specifically related to a kind of metal pedestal basin structure in the furniture industry seat that is applicable to, is specially adapted to have in the office seating seat of elevating function.

Background technology

What the seat cushion of present most office seating on the market adopted is wooden plywood's structure, sticks foam and face cover on the plank surface, to realize function, referring to Fig. 1 and Fig. 2, among the figure wooden plywood, the 2nd, nut, the 3rd, screw, the 4th, height adjustment mechanism, the 5th, foam, the 8th, sleeve.The problem that this structure exists is:

1, expends the forest reserves, be unfavorable for the conservation of nature environment.

2, the wooden plywood after office seating uses does not have the value of recovery.

3, strength of wood is far away from steel, and when explosion time appears in the lift cylinder of steel seat, plank does not have effective defencive function to the people.

4, the purchase channel of timber is lack of standardization, can't guarantee the health and safety of product, and a lot of manufacturing firms of wooden plywood is for reducing cost, can extensively adopt wood fragments mouldy, that rot to cut gluing pressing forms, but the adhesive content of formaldehyde that present most of producer uses is very high, and human body is caused very big injury.

5, wooden plywood can not process rational moulding when compacting, can not reduce the consumption of foam to the full extent.Foam is chemical products, can endanger environment at production period.

6, the elevating function of seat realizes that by a cover metal elevating mechanism this cover mechanism is connected on the glued board by screw, this structure is easy to occur screw and is connected unsteady situation with timber again generally speaking.

7, assembly process is more, and it by in wooden plywood's boring, is embedded in nut in the wooden plywood earlier then, just wooden plywood is connected with height adjustment mechanism at last.

The utility model content

Problem to be solved in the utility model is to overcome above shortcomings in the current techniques, a kind of office seating metal pedestal basin structure is proposed, purpose is the structure that replaces present wood gluing plate, improves the security and the comfortableness of office seating, reduces the use amount of foam simultaneously.

Utility model addresses the above problem the technical scheme that is adopted:

A kind of office seating metal pedestal basin structure, it is holistic metallic stamping pieces, is the basin type.Have recessed central area after described seat basin middle part is leaned on, limit, the left and right sides has the edge area of symmetry, and the front is the leading edge zone; The scope of described central area is at r=70mm-130mm, and r is that the centre of support point with the seat basin is the center.The central area with about the edge area offset at 40mm-60mm, the leading edge zone again a little less than about edge area, all be linear even transition between each zone; Integrated punching has reinforcement on the present basin, described reinforcement from the central area to around disperse edge area about extending to and leading edge zone.

Further, the crossing zone of edge area and leading edge zone about described is provided with T font or linear reinforcement, and extending to the central area. the reinforcement on the described edge area is arranged one at least, arranges evenly that along the directions X of seat basin shape can be T type or linear pattern; The reinforcement in described leading edge zone is arranged one at least, arranges along the Y direction of seat basin.

In addition, the flange that also has downward 10mm-30mm around the described seat basin.

The design changes present wooden plywood's seat basin into the metal pedestal basin, utilize the excellent processing characteristics of metal plastically deformable, and on the metal pedestal basin, reinforcement, flange are set rationally, and reinforcement and flange and seat basin are one time punching molded, thereby satisfy instructions for use, concrete advantage is as follows:

1, safer.Replace wooden plywood with metal, even the cylinder blast, the cylinder metal fragment that splashes does not have enough energy penetrating metals to sit basin yet, hurts the user.

2, more environmental protection.Do not contain any organic bond, Manufacturing Worker and user understand safer, and littler to the harm of environment.

3, more comfortable.The engineer of design seat can require the redesign seat surface according to comfort, makes seat more beautiful and comfortable.And metal has very strong plasticity, can satisfy the requirement that our diverse location uses the different-thickness foam.

4, simplify production process.The production procedure of existing seat is: boring---nut is embedded in the wooden plywood---wooden plywood of wooden plywood is connected improvement back flow process with height adjustment mechanism: metal pedestal basin and height adjustment mechanism are by being welded to connect (spot welding or arc-welding).As seen whole production process was reduced to a step by three steps, referring to Fig. 1 and Fig. 3.

5, reduce the foam consumption, referring to Fig. 2 and Fig. 4.

Description of drawings

Fig. 1 is the present wooden plywood's seat basin and the structural representation of seat support and connection;

Fig. 2 is the foam consumption schematic diagram of present wooden plywood's seat basin;

Fig. 3 is the structural representation of this metal pedestal basin and seat support and connection;

Fig. 4 is the foam consumption schematic diagram of this metal pedestal basin;

Fig. 5 is the structural representation of this metal pedestal basin;

Fig. 6 is the front view of Fig. 5;

Fig. 7 is the left view of Fig. 5;

Fig. 8 is the C-C profile of Fig. 5;

Fig. 9 is each regional distribution map on the metal pedestal basin.

1 wooden plywood among the figure; 2 nuts; 3 screws; 4 height adjustment mechanisms; 5 foams; 6 reinforcements; 7 flange; 8 sleeves

The specific embodiment

Below in conjunction with accompanying drawing this structure is elaborated:

Referring to Fig. 5 to Fig. 8, whole part has the direct punching press of metal foil to form, and integral body is the basin type.In conjunction with Fig. 7 as seen, have recessed central area B after present basin middle part is leaned on, the right and left is the edge area A of symmetry, and the front is the leading edge region D.The magnitude range of central area B is preferably designed as r=70-130mm, central area B with about the offset of edge area A be advisable comfortableness requirement when using to satisfy the people at 40mm-60mm.The leading edge region D again a little less than about edge area A, all be linear even transition between each zone.Integrated punching has reinforcement 6 on the present basin, in conjunction with the requirement of actual user demand and metalwork moulding process, reinforcement 6 from the center area B to around disperse edge area A about extending to and leading edge region D.

Because of about edge area A need reserve enough solders side, so size that should the zone guarantees preferably that because of being not less than 120mm*40mm this zone is 150mm*50mm.

In order to reach vertical stressed, the requirement that level stressed vertical with handrail of whole seat basin, the layout of reinforcement 6 should satisfy following requirement:

A, be no less than a reinforcement at the directions X of edge area A, length need extend to central area B from edge area A, to strengthen the intensity of handrail.

B, about edge area A and the zone C that intersects of leading edge region D reinforcement also is set, arrange a muscle at least, the T type that is shaped to or the straight line muscle of this muscle, length needs to extend to central area B from zone C at least.

C, from the center area B forward fringe region D arrange a reinforcement at least, length needs at least in the past that fringe region D extends to central area B.And arrange the reinforcement of a directions X on the leading edge region D at least, generally just can satisfy requirement of strength below three.

The muscle position can be arranged according to actual conditions towards the E direction in d, center, if there is not reinforcement of special instructions for use generally speaking, with the difficulty that reduces sheet metal forming with to the requirement of lathe.

The reinforcement cross section can be circular arc or rectangle, but the degree of depth of reinforcement is not less than 3mm, 3-6mm preferably, and the width of muscle does not have special requirement, generally gets final product greater than 10mm, preferably at 20-30mm.

In addition, for increasing the rigidity of whole part, need flange 7 around the part, flange 7 height need reach more than the 10mm, preferably 10mm-30mm.

Can satisfy following requirement fully by this part of above moulding:

Even the blast of 1 cylinder can not puncture steel plate.

2, with the seat basin with after backrest is connected, can reach following test requirements document.

(1) two intersection point places of the inside 80mm of the leading edge inside 80mm in both sides of the edge, vertical and cushion surface applies insist on continuous 10 seconds of 1300N, 10 such operations of exerting pressure repeatedly, seat does not have disabler.

(2) vertical and handrail surface applies insist on continuous 10 seconds of 700N, the operation of exerting pressure for 10 times repeatedly, and seat does not have disabler.

(3) level applies insist on continuous 10 seconds of 300N on external handrail, the operation of exerting pressure for 10 times repeatedly, and seat does not have disabler.

(4) weight of 25kg freely falls apart from the height of cushion surface 140mm, the present basin stress point (i.e. the position that is connected with cylinder) of bump, and 10 operations repeatedly, seat does not have disabler.

(5) two intersection point places of the inside 80mm of the leading edge inside 80mm in both sides of the edge alternately apply the power of 1000N repeatedly, 20000 such operations of exerting pressure repeatedly, and seat does not have disabler.

Claims

1. office seating metal pedestal basin structure, it is holistic metallic stamping pieces, is the basin type; It is characterized in that: have recessed central area after described seat basin middle part is leaned on, the right and left has the edge area of symmetry, and the front is the leading edge zone; The scope of described central area is at r=70mm-130mm, r is that the centre of support point with the seat basin is the center, the central area with about the edge area offset at 40mm-60mm, the leading edge zone again a little less than about edge area, all be linear even transition between each zone; Integrated punching has reinforcement on the present basin, described reinforcement from the central area to around disperse edge area about extending to and leading edge zone.

2. office seating metal pedestal basin structure according to claim 1 is characterized in that: the crossing zone of edge area and leading edge zone about described is provided with T type or linear reinforcement, and extends to the central area.

3. office seating metal pedestal basin structure according to claim 1 and 2, it is characterized in that: described edge area is arranged a reinforcement at least, evenly arranges along the directions X of seat basin, is shaped as T type or linear pattern; A reinforcement is arranged in described leading edge zone at least, arranges along the Y direction of seat basin.

4. office seating metal pedestal basin structure according to claim 3, it is characterized in that: the size of the edge area about described is not less than 120mm*40mm.

5. office seating metal pedestal basin structure according to claim 4, it is characterized in that: the degree of depth of the cross section of described reinforcement is at 3-6mm, and width is at 20-30mm.

6. office seating metal pedestal basin structure according to claim 5 is characterized in that: the flange that also has downward 10mm-30mm around the described seat basin.