CN2412461Y

CN2412461Y - Improved adjusting device for chair

Info

Publication number: CN2412461Y
Application number: CN 00205902
Authority: CN
Inventors: 蔡启程
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-02-25
Filing date: 2000-02-25
Publication date: 2001-01-03
Anticipated expiration: 2010-02-25

Abstract

The utility model relates to an adjusting device for chairs, particularly the adjusting device for the chairs with a seat cushion, and the front height and the back height of the seat cushion are changed along with a declining angle of a chair back. The utility model is characterized in that a short rod and the back side of the seat cushion are driven by a connecting rod arranged on a swing seat to move in a downward bias direction through the back pressure of the chair back; the front end of the connecting rod makes a set square rotate in an upward bias direction and drives the front side of the seat cushion to move in an upward bias direction to ensure the seat cushion to form a state which is provided with a high front and a low back; the state can form an angle which can prevent users' buttocks from slipping forward, and therefore, seating on the chair is more comfortable.

Description

Improved chair regulating device

The utility model relates to seat, refers to that especially a kind of cushion can change the chair regulating device of forward and backward height with chair back angle of inclination.

As shown in Figure 1, it is the conventional seat adjusting device, it is in the cushion bottom this adjusting device to be set, this adjusting device has a holder 11 that is incorporated into cushion 10 bottoms, be provided with a fixed bar 12 in this holder 11, and in the two ends of this fixed bar 12 respectively in conjunction with a compression spring 13 that extends back, the other end that should compression spring 13 then in conjunction with one in order to rotation seat 14 in conjunction with the chair back 20, this rotation seat 14 is to be articulated in holder 11 with a pivot 15, and fixes with a horizontal inserted link 16.The saddle adjustment structure that this kind is commonly used in use only can be to extract horizontal inserted link 16 out, rotation seat 14 is not fixed, and when making backward chair rest 20, this rotation seat 14 can compress compression spring 13, and the elastic force of mat compression spring 13 makes when pressing the chair back 20, has soft effect.But, it only can make the chair back 20 that the effect of swing is arranged, this cushion 10 does not then have the function that changes height or angle according to the chair back 20 angles, so that when the chair back 20 recedes, cushion 10 is peaceful and can not prop up user's buttocks, cause the easy situation of slippage forward of user's buttocks, and cause the discomfort of taking; And horizontal inserted link 16 only can be fixed an angle, and can't satisfy different users's demand.

The chair regulating device that provides a kind of cushion can change forward and backward height with chair back angle of inclination for addressing the above problem is provided main purpose of the present utility model.

Of the present utility model time a purpose provides a kind of improved chair regulating device, and the piston rod of mat pneumatic cylinder can random length be fixed in stroke, uses to cooperate the different required chair back and the cushion angles of user.

The purpose of this utility model is achieved in that a kind of improved chair regulating device, it is characterized in that: have a holder, be to be sheathed on the pillar of tool pneumatic cylinder in, and adjust the height of this holder pillar with an adjusting lever, the saturating empty slot part of a rear side is protruded on the front end right side of this holder, and the front end of this holder has one laterally and extend to the pivot of slot part, this pivot in the two ends of holder inside respectively in conjunction with a corner of a set square, the upside corner of this two set square then articulates at the bottom of the seat in conjunction with cushion bottom, another corner of this two set square then articulates respectively at one in order to two connecting rods in conjunction with the swing seat of the chair back, the middle section position of this two connecting rod is articulated in holder inside with a rotating shaft, and this two connecting rod compresses downwards with a compression spring that is incorporated into holder before rotating shaft, the back segment of this two connecting rod then is articulated in a quarter butt one end respectively, at the bottom of the other end of this two quarter butt then is articulated in aforesaid seat with one second, this right-hand member of second extends to be sat at the end, an and end of pin-joint pneumatic cylinder, the other end of this pneumatic cylinder is the slot part that extends to this holder, and the piston-rod end of this pneumatic cylinder is in conjunction with the blind end of a U-shaped seat, the openend of this U-shaped seat then is articulated in aforesaid pivot, this piston rod is axially established a bleeder valve in this U-shaped seat, this bleeder valve is to compress with L-shaped and pressing plate one end that be articulated in the slot part, and the other end of this pressing plate then also is articulated in the bull stick that slot part and a side have a projection with one and compresses.

This improved chair regulating device of the present utility model, the strength that can take advantage of pushing chair back, move with the connecting rod drive quarter butt of swing seat and the rear side downward bias of cushion, and the connecting rod front end is about to set square and upward deflects, and the front side that drives cushion is upwards moving partially, makes cushion form the low state in preceding high back, uses formation and can stop the angle of user's buttocks to front slide, make and take more comfortablely, reached above-mentioned purpose of design.

Now describe the utility model in detail in the back with a preferred embodiment and conjunction with figs.:

Description of drawings:

Fig. 1: be habit formula saddle adjustment structure stereogram;

Fig. 2: be stereogram of the present utility model;

Fig. 3: the three-dimensional exploded view that is the utility model and the chair back, cushion;

Fig. 4: be user mode presentation graphs one of the present utility model;

Fig. 5: be user mode presentation graphs two of the present utility model.

See also Fig. 2 to shown in Figure 5, it has a holder 30 preferred embodiment of the present utility model, be to be sheathed on the pillar 31 of tool pneumatic cylinder (not shown) in, and adjust the height of these holder 30 pillars 31 with an adjusting lever 32, the saturating empty slot part 33 of a rear side is protruded on the front end right side of this holder 30, and the front end of this holder 30 has one laterally and extend to the pivot 34 of slot part 33, this pivot 34 in the two ends of holder 30 inside respectively in conjunction with a corner of a set square 35, the upside corner of this two set square 35 then articulates one in order in conjunction with at the bottom of the seat of cushion 40 bottoms 41, another corner of this two set square 35 then articulates respectively at one in order to two connecting rods 52 in conjunction with the swing seat 51 of the chair back 50, the middle section position of this two connecting rod 52 is articulated in holder 30 inside with a rotating shaft 53, and this two connecting rod 52 compresses downwards with a compression spring 55 that is incorporated into holder 30 before rotating shaft 53, the back segment of this two connecting rod 52 then is articulated in a quarter butt 56 1 ends respectively, the other end of this two quarter butt 56 then is articulated at the bottom of the aforesaid seat 41 with one second 54, this right-hand member of second 54 extends to be sat at the end 41, an and end of pin-joint pneumatic cylinder 60, the other end of this pneumatic cylinder 60 is the slot parts 33 that extend to this holder 30, and piston rod 61 ends of this pneumatic cylinder 60 are in conjunction with the blind end of a U-shaped seat 62, the openend of this U-shaped seat 62 then is articulated in aforesaid pivot 34, this piston rod 61 is axially established a bleeder valve 63 in this U-shaped seat 62 in addition, this bleeder valve 63 is to compress with L-shaped and pressing plate 64 1 ends that be articulated in the slot part 33, and the other end of this pressing plate 64 then also is articulated in the bull stick 66 that slot part 33 and a side have a projection 65 with one and compresses.

See also Fig. 4, shown in Figure 5, when using the utility model, the user is seated on the cushion 40, and the back is against the chair back 50, if need to adjust receding during angle of the chair back 50, the user only needs the back is compressed the chair back 50 backward, this moment, this chair back 50 promptly can be toward rear-inclined, and the connecting rod 52 drive quarter butts 56 with swing seat 51 are moving with the rear side downward bias of sitting the end 41, and this second 54 compresses pneumatic cylinder 60 simultaneously, and its piston rod 61 is shortened, and upward deflects and be about to set square 35 by connecting rod 52 front ends that rotating shaft 53 articulates, and the front side at the drive seat end 41 is upwards moving partially, makes this cushion 40 form the low state in preceding height back.And rotate bull stick 66, and make this pressing plate 64 compress bleeder valve 63 and be closed condition, no longer change with the length of controlling pneumatic cylinder 60, and use the angle of keeping the chair back 50 and cushion 40.If only need during the angle of the desire answer chair back 50 and cushion 40 this bull stick 66 is gone to original position (that is projection 65 does not prop up the position of pressing plate 64), this bleeder valve 63 is opened, and by this compression spring 55 restoring force, drivening rod 52 and quarter butt 56 elongate pneumatic cylinder 60, and this chair back 50 and cushion 40 all return back to original angle simultaneously.

From the above, the utility model can be when backward chair rest 50, change the angle of cushion 40 simultaneously, when this chair back 50 is receded, the low state in high back use formation and can stop the angle of user's buttocks to front slide, and this pneumatic cylinder 60 can random length be fixed in piston rod 61 strokes before this cushion 40 also can form, use the different user of cooperation, it is all comfortable that anyone is taken.

In sum, the utility model is really practised the formula structure and is had above-mentioned advantage, therefore, specially for proposing patent application, only the above only is a preferred embodiment of the present utility model, is not to be used for limiting the scope that the utility model is implemented, be that all equalizations of being done according to the technical solutions of the utility model scope change and modification, be all technical solutions of the utility model and contain.

Claims

1, a kind of improved chair regulating device, it is characterized in that: have a holder, be to be sheathed on the pillar of tool pneumatic cylinder in, and adjust the height of this holder pillar with an adjusting lever, the saturating empty slot part of a rear side is protruded on the front end right side of this holder, and the front end of this holder has one laterally and extend to the pivot of slot part, this pivot in the two ends of holder inside respectively in conjunction with a corner of a set square, the upside corner of this two set square then articulates at the bottom of the seat in conjunction with cushion bottom, another corner of this two set square then articulates respectively at one in order to two connecting rods in conjunction with the swing seat of the chair back, the middle section position of this two connecting rod is articulated in holder inside with a rotating shaft, and this two connecting rod compresses downwards with a compression spring that is incorporated into holder before rotating shaft, the back segment of this two connecting rod then is articulated in a quarter butt one end respectively, at the bottom of the other end of this two quarter butt then is articulated in aforesaid seat with one second, this right-hand member of second extends to be sat at the end, an and end of pin-joint pneumatic cylinder, the other end of this pneumatic cylinder is the slot part that extends to this holder, and the piston-rod end of this pneumatic cylinder is in conjunction with the blind end of a U-shaped seat, the openend of this U-shaped seat then is articulated in aforesaid pivot, this piston rod is axially established a bleeder valve in this U-shaped seat, this bleeder valve is to compress with L-shaped and pressing plate one end that be articulated in the slot part, and the other end of this pressing plate then also is articulated in the bull stick that slot part and a side have a projection with one and compresses.