CN2457917Y

CN2457917Y - Chair back regulating mechanism

Info

Publication number: CN2457917Y
Application number: CN 00263776
Authority: CN
Inventors: ***
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-12-06
Filing date: 2000-12-06
Publication date: 2001-11-07
Anticipated expiration: 2010-12-06

Abstract

The utility model relates to a regulating mechanism for a chair back. The utility model is proposed to provide a chair component which enables a chair to be suitable for people of various kinds of stature to sit and lean comfortably and saves expenses. The utility model comprises a chair seat frame provided with an open containing cavity, a supporting frame, a pad body, an outer shell body and a spherical body which is fixedly provided with a screw rod, wherein, both ends of the supporting frame are provided with a combining part and two pivoting sheet bodies. The supporting body is pivoted in the open position of the chair seat frame by the two pivoting sheet bodies and is pivoted between the two pivoting sheet bodies in a sliding way by a rotating shaft rod provided with a screw hole. The pad body is pivoted with the combining part of the supporting body, and an outer shell which is covered on the supporting body is pivoted with the pad body and the chair seat frame. The other end of an upper spiral strip of the spherical body is penetrated with a circular ring and is screwed in the screw hole of the rotating shaft rod.

Description

Back of chair regulating mechanism

The utility model belongs to chair components, particularly a kind of back of chair regulating mechanism.

Along with the progress in epoch, the lifting of living standard, people are also just exquisite especially for the convenient and practical property of daily furniture, so the variation of chair improvement is also given birth to regard to transporting pregnant thus.The employed chair of general family, its chair back and seat support mostly are integrated design, make seats be of a size of fixed size, and people are when being sitting on the seats, its correct sitting posture is the back arm-chair back of the body, and shank carries over thigh and hangs down and put and heel can be landed.But when the seats size is big, or child is when being seated on adult's chair, if its back arm-chair back of the body, its shank then possibly can't carry over thigh and hang down and put, and causes heel to land.So when long-time seating, be easy to generate and ache all over.When the seats size hour, if its back arm-chair back of the body, the position can't suitably be unfolded and be put to its whole shank then, so for a long time during seating, causes stasis easily and produce the leg fiber crops.Moreover the chair size of general family mostly is single fixed, when purchase is fit to everyone seat-sized as desire, must increase some family expenses expenses again, forms a kind of economic pressures.

The purpose of this utility model provides a kind of chair that makes can be fit to the comfortable seating of various stature personnel, belt-tightening back of chair regulating mechanism.

The utility model comprises seat support skeleton, bracing frame, pad, shell body and spheroid; Seat support skeleton rear end is provided with to the nearly upper limb in both sides place is provided with respectively afterwards, front-axle hole opening containing cavity; The supporter top is provided with the junction surface, and it is the bending bottom and extends the two pivot joint lamellar bodies that are provided with axis hole and arc slotted eye relatively; Pad one end forms the recess that both sides are provided with through hole, is provided with axis hole in nearly through hole one side; Shell body is a shedding shell, its top and slightly be both sides, bending arc shape bottom and be respectively equipped with axis hole; Spheroid wears fixing centre bore for ribbon; Supporter is hubbed at seat support skeleton opening part by being arranged in the long shaft rod that reaches in the front-axle hole of seat support skeleton opening both sides in its two pin-jointing pieces axon hole, and two stub shaft are fixedly arranged in the rotating shaft bar between its two pivot joints lamellar body in the arc slotted eye by being interspersed in; The moderate place of rotating shaft bar is provided with screw, pad articulates by the long shaft rod and the supporter that are arranged in its axis hole and the joint portion, supporter top, shell inclusion supporter, and by being arranged in respectively the long shaft rod in the axis hole and pad and seat support skeleton articulate behind its top and bottom ends axis hole and pad through hole and the seat support skeleton; The other end that is fixed in the ribbon on the spheroid wears annulus and is bolted in and is fixedly arranged in two of supporter and articulates in the screw of rotating shaft bar between the lamellar bodies.

Wherein:

Back, the front-axle hole below of seat support skeleton open rearward end one side are provided with the arc groove.

Because the utility model comprises the seat support skeleton, the two ends that are provided with the opening containing cavity and is provided with the spheroid that joint portion and two articulates bracing frame, pad, the shell body of lamellar body and sets firmly screw rod; Supporter two articulates lamellar body and is hubbed at seat support skeleton opening part with it, and is located at it with the rotating shaft bar slide pivot that is provided with screw and two articulates between lamellar body, and pad articulates with the supporter joint portion, shell inclusion supporter, and with pad and the pivot joint of seat support skeleton; The other end that is fixed in the ribbon on the spheroid wears annulus and is bolted in the screw of rotating shaft bar.When desire is adjusted to the seat support of chair and the chair back when being applicable to child, in rotating shaft bar screw, rotate ribbon by spheroid, the rotating shaft bar articulates on the lamellar body in two of supporter and moves in the arc slotted eye, so that the screw of the outstanding more rotating shaft bar of ribbon, supporter promotes forward more together with shell body, move forward simultaneously to drive the chair back, until adjusting to the position that is fit to child.When desiring the chair back to be adjusted to the position that is fit to the adult, the backward rotation spheroid gets final product again.Just can make seat support to do appropriateness adjustment with adult and child's size difference.Not only make chair can be fit to the comfortable seating of various stature personnel, and reduce expenses, thereby reach the purpose of this utility model.

Fig. 1, be the utility model decomposition texture schematic isometric.

Fig. 2, be the utility model structural representation stereogram.

Fig. 3, be the utility model adjustment action schematic diagram (backward).

Fig. 4, be the utility model user mode schematic diagram (backward).

Fig. 5, be the utility model adjustment action schematic diagram (forward).

Fig. 6, be the utility model user mode schematic diagram (forward).

Below in conjunction with accompanying drawing the utility model is further elaborated.

As shown in Figure 1 and Figure 2, the utility model system is arranged between the seat support 6 and the chair back 7, and it comprises seat support skeleton 1, bracing frame 2, pad 3, shell body 4 and spheroid 5.

Seat support skeleton 1 front end is installed in the base body 61 of seat support 6, and its rear end is provided with and is hollow opening 11, is provided with back, front-axle hole 111,112 respectively in nearly upper limb place, opening 11 both sides, and in wherein back, front-axle hole 111,112 belows of a side are provided with arc groove 113.

Supporter 2 tops are provided with the rod junction surface 21 that articulates with pad 3, and its bottom appropriate location slightly is bending, and extend corresponding two and articulate lamellar bodies 22, two and articulate on the lamellar bodies 22 and be respectively equipped with axis hole 221 and arc slotted eye 222 in being the bending bottom.Two pivot joint lamellar bodies 22 are hubbed at seat support skeleton 1 opening 11 places by being arranged in the long shaft rods 45 that reach in its axis hole 221 in the seat support skeleton 1 opening 11 both sides front-axle holes 112, and two stub shaft 22 3 are fixedly arranged in rotating shaft bar 224 between its two pivot joints lamellar body 22 in the arc slotted eye 222 by being interspersed in; Rotating shaft bar 224 moderate places are provided with screw 2241.

Pad 3 is to be arranged at the chair back 7 one sides, and the one end is provided with recess 31, and is provided with through hole 32 in recess 31 both sides, and is provided with axis hole 33 in nearly through hole 32 1 sides.Pad 3 articulates with supporter 2 by the long shaft rod 34 that is arranged in its axis hole 33 and the rod joint portion, supporter 2 top 21.

Shell body 4 is the shedding shell of corresponding inclusion supporter 2, its both sides, top are provided with for being arranged in the axis hole 41 that long shaft rods 42 wear in the pad 3 recesses 31 both sides through holes 32, and it slightly is both sides, bending arc shape bottom and is provided with for being arranged in the axis hole 43 that long shaft rods 44 wear in the axis hole 111 behind the seat support skeleton.

Spheroid 5 moderate places are provided with the centre bore 51 that wears for ribbon 52; One end of ribbon 52 is fixed in spheroid 5 centre bores 51 by screw 53, the other end wears annulus 54 and is bolted in the screw 2241 of rotating shaft bar 224 between the two pivot joint lamellar bodies 22 that are fixedly arranged in supporter 2, and annulus 54 is positioned the moderate place of ribbon 52 by stopping pin 55.

By the utility model, make that the chair back 7 can be forward or adjust backward, so that same chair is adjusted to can be fit to the adult respectively or child's seat leans on.

As shown in Figure 3, Figure 4, the seat support 6 of chair and the chair back 7 be for being applicable to adult's user mode, at this moment, be fixedly arranged in spheroid 5 centre bores 51 ribbon 52 contract to rotating shaft bar 224 screws 2241.

As Fig. 5, shown in Figure 6, when desire is adjusted to the seat support 6 of chair and the chair back 7 when being applicable to child, in rotating shaft bar 224 screws 2241, rotate ribbon 52 by spheroid 5, rotating shaft bar 224 articulates on the lamellar body 22 in two of supporter 2 and moves in the arc slotted eye 222, so that the screw 2241 of the outstanding more rotating shaft bar 224 of ribbon 52, supporter 2 promotes forward more together with shell body 4, moves forward simultaneously to drive the chair back 7, until adjusting to the position that is fit to child.When desiring the chair back 7 to be adjusted to the position that is fit to the adult, backward rotation spheroid 5 gets final product again.

The utility model is undertaken forward or adjustment backward by 113 pairs of chair back of arc groove 7 of seat support skeleton 1 hollow form opening 11 1 sides, arc groove 113 outer rims are carved with distance values, when using for user's rotating sphere 5, can adjust the distance of the chair back 7 spacings forward clear and definite or backward, make seat support 6 to do appropriateness adjustment with adult and child's size difference.

Claims

1, a kind of back of chair regulating mechanism is characterized in that it comprises seat support skeleton, bracing frame, pad, shell body and spheroid; Seat support skeleton rear end is provided with to the nearly upper limb in both sides place is provided with respectively afterwards, front-axle hole opening containing cavity; The supporter top is provided with the junction surface, and it is the bending bottom and extends the two pivot joint lamellar bodies that are provided with axis hole and arc slotted eye relatively; Pad one end forms the recess that both sides are provided with through hole, is provided with axis hole in nearly through hole one side; Shell body is a shedding shell, its top and slightly be both sides, bending arc shape bottom and be respectively equipped with axis hole; Spheroid wears fixing centre bore for ribbon; Supporter is hubbed at seat support skeleton opening part by being arranged in the long shaft rod that reaches in the front-axle hole of seat support skeleton opening both sides in its two pin-jointing pieces axon hole, and two stub shaft are fixedly arranged in the rotating shaft bar between its two pivot joints lamellar body in the arc slotted eye by being interspersed in; The moderate place of rotating shaft bar is provided with screw, pad articulates by the long shaft rod and the supporter that are arranged in its axis hole and the joint portion, supporter top, shell inclusion supporter, and by being arranged in respectively the long shaft rod in the axis hole and pad and seat support skeleton articulate behind its top and bottom ends axis hole and pad through hole and the seat support skeleton; The other end that is fixed in the ribbon on the spheroid wears annulus and is bolted in and is fixedly arranged in two of supporter and articulates in the screw of rotating shaft bar between the lamellar bodies.

2, back of chair regulating mechanism according to claim 1 is characterized in that back, the front-axle hole below of described seat support skeleton open rearward end one side is provided with the arc groove.