CN2662745Y

CN2662745Y - Multi-section chair back structure

Info

Publication number: CN2662745Y
Application number: CN 200320100691
Authority: CN
Inventors: 吴耀全
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-11-26
Filing date: 2003-11-26
Publication date: 2004-12-15
Anticipated expiration: 2013-11-26

Abstract

The utility model relates to a multi-sectional chair-back structure. A fixing bracket stretches two connecting tubes, which go respectively backwards and upwards out of a fixing board, for the fixation of the chair back through rail connection; the connecting tubes are provided inside with respectively a connecting bar of the head board; an elastic returning part is arranged transversely behind the chair back and connected with one end of a waist post whose other end is connected with a returning spring shaft arranged at back of the waist board; a returning spring shaft is also arranged between the head board and the connecting bar. Hereby, a multi-sectional chair back comes into being, and the head board and the waist board are able to provide continuous good support result when the lying force or angle of the user is changed.

Description

The back structure of multisection type

Technical field

The utility model is a kind of back structure of multisection type, mainly be with fixed support, backboard, plate, back is formed, wherein fixed support is with a fixed head backward, upwards extending out two connecting pipes connects the location for the backboard rail, and connecting pipe can be nested with the connecting rod of a plate, and the backboard rear side has been horizontally set with an elastic force rotating part in addition and in conjunction with waist bar one end, making the waist bar hold in addition combines with the main spring axle of back rear side, urge to make back be positioned at the place ahead downside of backboard, and between a plate and connecting rod, also be provided with the main spring axle, and can form the chair back of multisection type, an order plate, back can lying of corresponding user lean on strength, angle continues to provide the good supporting effect when changing.

Background technology

In the existing design of chair tool about the chair back, all be the purpose (as shown in Figure 1) of design that adopts integral type to reach ergonomics in response to user's back curve, though it can improve effect and the comfortableness that supports the back via the arc curve design of the chair back, but but be to be based upon when the user uses with its correct sitting posture just to reach this effect, otherwise the user is still the supporting effect that can't obtain this ergonomics.Its reason is that the many arc curves with the internal layer foam of the existing chair back directly constitute, produce the pooling feature of corresponding indent in the time of can only providing stressed, so can only the user with its correct sitting posture lie by the time, the passive effect that provides support, in case the user lies after firmly after sitting or leans to one side or be seated at cushion a little during leading edge, the some at user back just can cause unsettled with the chair back, produce the uncomfortable sensation of aching gradually, though therefore the chair back of integral type design can be saved manufacturing cost, the user but must pay unhealthful cost.

The utility model people supervises in above-mentioned problem, dark feel that the existing chair back has its shortcoming in the use and fails to meet user's demand, therefore satisfy the professional manufacturing experience of being engaged in the creation design with it for many years, actively research and development improvement, the discretion of each side's condition consider following, finally develop the composition of this structure, can solve existing every problem fully.

The utility model content

The purpose of this utility model is, a kind of back structure of multisection type is provided, and meets ergonomics usefulness, can initiatively make suitable support effect with the curved needle of backboard, back immediately to user's sitting posture state, reaches comfortable purpose.

The back structure of a kind of multisection type of the utility model, mainly be by fixed support, backboard, plate, back constitutes the multisection type design, and by the elastic force rotating part, the main spring axle is linked to the composition between member, it is characterized in that, wherein this fixed support is with fixed head backward, upwards extending out two connecting pipes connects the location for the backboard rail, and connecting pipe can be nested with for the connecting rod of a plate and be positioned at above the backboard, and the backboard rear side has been horizontally set with an elastic force rotating part in addition with in conjunction with waist bar one end, making the waist bar hold in addition combines with the main spring axle of back rear side, make back be positioned at the place ahead downside of backboard, and between a plate and connecting rod, also be provided with the main spring axle, to form the chair back of multisection type.

Fixed support wherein: be backward, upwards to be the L shape and to extend out two connecting pipes, offer several hole clippings on the connecting pipe with a fixed head;

Backboard: be to be installed with wire side with the backboard framework to form, be provided with the clip pipe in rear end, backboard framework both sides, and between two clip pipes via cross bar affixed one axle that wears torque spring, an end of this torque spring is to fasten that an end is convexly equipped with in the hole of cambered surface on axle;

Plate: be to be installed with wire side with a plate frame body to form, in its plate frame body rear via axially bending and be arranged with two connecting rods down of main spring with corresponding connecting pipe;

Back: be to be installed with wire side with the back framework to form, upwards bend out a waist bar via the main spring axle by back framework rear;

Elastic force rotating part: be to be cross-placed on the axle with the housing that a respective shaft is arranged with tank, the cooperation enclosing cover locks and forms, this tank one side correspondence is provided with for torque spring and holds the ditch of holding in addition, and a pair ofly should give that gland is locked admittedly and for the cover plate of this end inlay card of torque spring, and offer at the housing downside and to hold hole and two screws, but enclosing cover then is a corresponding housing torque spring after placing the hole, is locked by screw double-screw bolt with in conjunction with the location with a twisting states;

Main spring axle: be to have two deep-slotted chip breakers to be linked to framework to be relative status outward, respectively be provided with the end that axis hole and embedding ditch can change spring for the card non-return in its inner face, rotary cap then is to be connected with the design that arc fastens plate and links rod member for an annulated column outer rim, and respectively be provided with the perforation of a tool guide channel in the both ends of the surface of annulated column, can be fastened in the perforation with the single-revolution state by the in addition end of guide channel for main spring, wear via axis hole, annulated column with screw rod, nut and be coupling this moment.

The utility model is a kind of back structure of multisection type, main this fixed support is with fixed head backward, upwards extending out two connecting pipes connects the location for the backboard rail, and connecting pipe can be nested with the connecting rod of a plate, and the backboard rear side has been horizontally set with an elastic force rotating part in addition and in conjunction with waist bar one end, making the waist bar hold in addition combines with the main spring axle of back rear side, urge to make back be positioned at the place ahead downside of backboard, and between a plate and connecting rod, also be provided with the main spring axle, and the chair back of composition multisection type, so following usefulness can be provided:

Because the chair back of the present utility model is by fixed support, backboard, plate, back makes up and the design of formation multisection type, impelling back is to protrude than backboard, so back can be when stressed relative backboard and revolution backward, swing, to keep a suitable support force and a comfortableness, allow backboard and back can be fully provide ergonomics usefulness in response to user's back curve, and a plate also has the function that corresponding user's head is lain and depend on power to swing, otherwise, lie after sitting because firmly or lean to one side and when causing the back curve state to change in the user, back also can be with its restoring force the user's that initiatively reclines below, back (waist), so can be initiatively with backboard, the curved needle of back is made suitable support effect immediately to user's sitting posture state, reaches comfortable purpose.

Description of drawings

For making the auditor can understand the function and benefit that structure of the present utility model is formed and can be reached really, below, conjunction with figs. and embodiment, introduce in detail explanation as after, wherein:

Fig. 1 is existing structure figure.

Fig. 2 is a structure chart of the present utility model.

Fig. 3 is an elastic force rotating part structure chart of the present utility model.

Fig. 4 is main spring axle construction figure of the present utility model.

Fig. 5 is composition state diagram of the present utility model.

Fig. 6 is an enforcement schematic diagram of the present utility model.

The specific embodiment

The utility model is a kind of back structure of multisection type, mainly is to constitute the multisection type design by fixed support 1, backboard 2, a plate 3, back 4, and by bullet; Rotating part 5, main spring axle 6 are linked to the composition (as shown in Figure 2) between member, wherein:

Fixed support 1: be backward, upwards to be the L shape and to extend out two connecting pipes 12, offer several hole clippings 13 on the connecting pipe 12 with a fixed head 11.

Backboard 2: be to be installed with wire side 22 with backboard framework 21 to form (maybe can be formed) for other forms of materials such as foams, be provided with clip pipe 23 in rear end, backboard framework 21 both sides, and 23 of two clip pipes via cross bar 26 affixed one axle 24 that wears torque spring 25 (after this axle 24 can place torque spring 25 earlier, handle and link cross bar 26 via penetrating again with the two ends of axle 24 again), an end of this torque spring 25 is to fasten on axle 24 end to be convexly equipped with in the hole 242 of cambered surface 241 (as shown in Figure 3).

Plate 3: be to be installed with wire side 32 with a plate frame body 31 to form (maybe can for other forms of material such as foams to form), in its plate frame body 31 rears via main spring axle 6 bending downwards and be arranged with two connecting rods 33 with corresponding connecting pipe 12.

Back 4: be to be installed with wire side 42 with back framework 41 to form (maybe can be formed), upwards bend out a waist bar 43 via main spring axle 6 by back framework 41 rears for other forms of materials such as foams.

Elastic force rotating part 5: be to be cross-placed on the axle 24 with housing 5 soil that a respective shaft 24 is arranged with tank 52, cooperation enclosing cover 55 locks and forms, these tank 52 1 side correspondences are provided with for torque spring 25 and hold the ditch 53 of holding in addition, and a pair ofly should give that gland is locked admittedly and for the cover plate 58 of torque spring 25 these end inlay cards, and offer at housing 51 downsides and to hold hole 54 and two screws 56, but enclosing cover 55 then is a corresponding housing 51 torque spring 25 after placing hole 551, is locked by screw 57 double-screw bolt 511 with in conjunction with the location with a twisting states.

Main spring axle 6: be to have two deep-slotted chip breakers 61 to be linked to framework to be relative status outward, respectively be provided with the end that axis hole 62 and embedding ditch 63 can change spring 67 for the card non-return in its inner face, rotary cap 64 then is to be connected with the design that arc fastens plate 642 and links rod member for an annulated column 641 outer rims, and respectively be provided with the perforation 644 of a tool guide channel 643 in the both ends of the surface of annulated column 641, can be fastened in the perforation 644 with the single-revolution state by the in addition end of guide channel 643 for main spring 67, wear be coupling (as shown in Figure 4) with screw rod 65, nut 66 via axis hole 62, annulated column 641 this moment again.

By above-mentioned member, at first make the waist bar 43 of back 4 insert by backboard 2 the place ahead downsides, impel two screwed holes 44 of waist bar 43 front ends to be able to stretch into and solid with screw 56 spiral shells via the appearance hole 54 of housing 51 downsides, form the place ahead downside that back 4 is positioned at backboard 2, connect the clip pipe 23 corresponding rails of backboard 2 and be positioned on the connecting pipe 12 of fixed support 1 this moment, places for the connecting rod 33 of a plate 3 with connecting pipe 12 and be positioned at backboard 2 tops (as shown in Figure 5).

Via the chair back 10 of above-mentioned composition multisection type as can be known, because a plate 3 all is to link with its rod member via main spring axle 6 with the framework of back 4, so a plate 3 and back 4 all can have rotating usefulness (as shown in Figure 6) about in the of one via main spring axle 6, to lean on posture in response to different the lying of user, and because the waist bar 43 of back 4 is to combine with backboard 2 via elastic force rotating part 5, make waist bar 43 carry out swing by relative axle 24 by torque spring 25, so back 4 can provide support force initiatively in response to user's waist state continuance, reach best comfortableness.

And in formation of the present utility model as can be known, the design of its major function is to reach via the chair back 10 structures of multisection type, make back 4, a plate 3 can have rotating effect up and down, and back 4 backboard 2 swings relatively, to reach the effect of promoting comfortableness, ergonomics, therefore the formation pattern of elastic force rotating part 5, main spring axle 6 is not limited to the disclosed state of the utility model, also can substitute this function via the composition of existing shell fragment, reaches presenting of approximation function.

Claims

1, a kind of back structure of multisection type, mainly be by fixed support, backboard, plate, back constitutes the multisection type design, and by the elastic force rotating part, the main spring axle is linked to the composition between member, it is characterized in that, wherein this fixed support is with fixed head backward, upwards extending out two connecting pipes connects the location for the backboard rail, and connecting pipe can be nested with for the connecting rod of a plate and be positioned at above the backboard, and the backboard rear side has been horizontally set with an elastic force rotating part in addition with in conjunction with waist bar one end, making the waist bar hold in addition combines with the main spring axle of back rear side, make back be positioned at the place ahead downside of backboard, and between a plate and connecting rod, also be provided with the main spring axle, to form the chair back of multisection type.

2, the back structure of multisection type as claimed in claim 1 is characterized in that, wherein fixed support: be backward, upwards to be the L shape and to extend out two connecting pipes with a fixed head, offer several hole clippings on the connecting pipe;