DE202016102214U1 - Device for lifting and / or lowering chair backrests - Google Patents

Abstract

An apparatus for raising and / or lowering a chair back, comprising: a seat adjuster (A0), a knob device (B0), and a drive cable (Z0), said drive cable (Z0) being interposed between said seat adjuster (A0) and said knob device (B0) and wherein the seat adjusting device (A0) and the knob device (B0) are each fixed at a specific position behind a chair back (X1), characterized in that the seat adjusting device (A0) comprises a main part (10), a guide piece (20) and a guide plate (30), wherein the main part (10) has at its front side at a predetermined location a projection (13) having a receiving space (14), wherein at one end in the receiving space (14) a guide groove (141) is formed and at the other end of the receiving space (14) a limiting end (142) is provided, wherein a guide rail (143) from the center of the limiting end (142) erstr wherein an elastic space (145) is disposed respectively on both sides of the guide rail (143), wherein additionally a guide groove (146) is formed at the end of the guide rail (143), with a guide groove (144) extending from one end of the guide groove (146), wherein a plurality of mounting parts (15) and a plurality of through holes (16) are respectively formed on both sides of the main part (10) at predetermined positions for fixing a housing cover (40), wherein a plurality of mounting holes (18 ) are formed at certain positions of the main part (10) to allow attachment of the main part (10) at a certain position of a chair back (X1), wherein a running rail (11) on the rear side of the main part (10) is formed, wherein a slide rail (12) at a certain point of the track rail (11) is arranged vertically, wherein the guide piece (20) at its front side at a predetermined location a Ansatzstel le (21), wherein an attachment slot (22) extends from one end of the attachment point (21), wherein an elastic recess (23) is formed in each case on both sides of the attachment point (21) at a predetermined location, wherein a leading end (21) 24) is provided at one end of the guide piece (20), wherein a side projection (25) is provided at the other end of the guide piece (20), wherein an insertion recess (27) is provided centrally on one side of the side projection (25), wherein a Insert projection (26) respectively formed on both sides of the insertion recess (27), wherein the side projection (25) in the receiving space (14) of the main part (10) is formed, wherein the attachment point (21) and the elastic recess (23) respectively with the side projection (25) facing inward, and wherein the insert recess (27) and the insert projection (26) are respectively formed corresponding to the slide rail (12) of the main part (10), and wherein the guide plate (30) is arranged vertically displaceable in the seat adjustment device (A0), and whose bottom is connected at a certain location with a chair seat (X2) and at the end face at a predetermined location, a guide piece (31) is formed on one side a guide strip (32) has, wherein the guide plate (30) at its front side at a predetermined location a guide piece (31) which has on one side a guide rail (32), wherein the guide plate (30) in the running rail (11) the main part (10) is slidably disposed, wherein the guide rail (32) on the slide rail (12) is slidably arranged, wherein a plurality of in-line mounted gears (33) and tooth grooves (34) respectively corresponding to the ...

Description

Technical area

The present invention relates to a lifting and lowering device, in particular a device for lifting and / or lowering of chair backrests.

Summary of the invention

The present invention has the important object of providing a device for raising and / or lowering chair backrests, wherein the user can first actuate a push button of a knob device, so that a first drive end of a drive cable is pulled through a recess of a telescopic pole to a in a seat adjustment device slidably mounted guide piece to pull through a second drive end, so that an insertion recess and an insertion projection of the guide piece can be separated respectively from a gear and a tooth groove of a guide rail. Subsequently, the user can optimally adjust the height of the chair back according to a guide plate as desired. After adjusting the chair back to the desired height, the user can actuate the push button of the telescopic rod, whereby the telescopic rod by means of the support of spring elements can return to their original position. At the same time, by means of the support of the two spring elements, the guide piece can bring the insert recess and the insert projection back into engagement with the toothed wheel and toothed groove by pressing, so that the chair back can be positioned again with the chair seat and with the guide plate.

Brief description of the drawings

The embodiments of the present invention will be described by way of example with reference to the following drawings in which: FIG

1 shows a perspective construction view of a device for lifting and / or lowering a chair back according to the present invention,

2 13 is an exploded perspective view of the seat adjustment device of a chair backrest raising and / or lowering device according to the present invention;

3 another perspective exploded view of the seat adjustment device of a device for raising and / or lowering a chair backrest; according to the present invention,

4 3 shows a perspective construction view of the rotary knob device of a device for raising and / or lowering a chair back according to the present invention,

5 13 is an exploded perspective view of the knob apparatus of a chair backrest raising and / or lowering apparatus according to the present invention;

6 12 is a schematic view illustrating a function of the knob apparatus of a chair backrest raising and / or lowering apparatus according to the present invention;

7 12 is a schematic view illustrating a function of the seat adjusting device of a chair backrest raising and / or lowering device according to the present invention;

8th 12 is a schematic view illustrating another function of the seat adjusting device of a chair backrest raising and / or lowering device according to the present invention;

9 12 is a schematic view illustrating another function of the knob apparatus of a chair backrest raising and / or lowering apparatus according to the present invention;

10 shows a schematic view illustrating still another function of the seat adjustment device of a device for raising and / or lowering a chair back according to the present invention, and

11 Fig. 12 shows a schematic view illustrating still another function of the seat adjusting device of a chair backrest raising and / or lowering device according to the present invention.

Detailed Description of the Preferred Embodiments

How out 1 to 5 1, a preferred embodiment of a chair backrest raising and / or lowering device according to the present invention essentially comprises a seat adjuster A0, a knob device B0, and a drive cable Z0 with the drive cable Z0 disposed between the seat adjuster A0 and the knob device B0; so that the seat adjusting device A0 and the knob device B0 are respectively fixed at a predetermined position behind a chair back X1.

The seat adjuster A0 basically has a main part 10 , a leader 20 , a guide plate 30 and a housing cover 40 on.

The main part 10 has at its front side at a predetermined location a projection 13 on top of a recording room 14 has. At one end in the recording room 14 is a guide groove 141 trained and at the other end of the recording room 14 is a boundary end 142 provided, wherein a guide rail 143 is formed, which extends from the center of the delimiting end 142 extends. An elastic space 145 is on both sides of the guide rail 143 arranged, wherein additionally a guide groove 146 at the end of this guide rail 143 is formed, and wherein a guide notch 144 is formed extending from one end of this guide 146 extends. Furthermore, a plurality of mounting parts 15 and a plurality of through holes 16 each on both sides of the main part 10 at predetermined locations for attachment of a housing cover 40 formed, wherein a plurality of mounting holes 18 at predetermined points of the main part 10 is designed to attach the main body 10 to allow at a certain point of a chair back X1. Furthermore, a running rail 11 at the back of the main part 10 formed, wherein a slide rail 12 at a predetermined location of this track 11 is arranged vertically.

The leader 20 has at its front side at a predetermined location an attachment point 21 on. From one end of the attachment point 21 extends a neck slot 22 , wherein an elastic recess 23 each on both sides of the attachment point 21 is formed at a predetermined location. Besides, is a leader 24 at one end of the leader 20 provided, with a side approach 25 at the other end of the guide piece 20 is provided. Furthermore, an insert recess 27 centered on one side of the page attachment 25 provided with an insert projection 26 each on both sides of the insert recess 27 is trained. Furthermore, the page approach 25 in the recording room 14 of the main part 10 formed, the attachment point 21 and the elastic recess 23 each outwardly facing is formed, the side approach 25 is formed facing inwards, and wherein the insertion recess 27 and the deployment lead 26 each according to the slide rail 12 of the main part 10 are formed.

The guide plate 30 is arranged vertically displaceable in the seat adjustment device A0, wherein the bottom is connected at a certain location with a chair seat X2, wherein at one end face of the guide plate 30 at a given location a leader 31 is formed, which on one side a guide rail 32 has. In addition, the guide plate 30 in the track 11 of the main part 10 slidably disposed, with the guide rail 32 on the slide rail 12 is slidably locatable. In addition, a plurality of in-line gears are 33 and tooth grooves 34 each according to the Einsatzvorsprüngen 26 and the insert recesses 27 of the guide piece 20 on one side of the guide rail 32 formed engaging each other.

The housing cover 40 is respectively at the front and back of the main body 10 arranged and has substantially a front cover 43 , a back cover 41 , two spacer plates 42 and a cover 44 on. The front cover 43 has one according to the projection 13 of the main part 10 trained opening 432 , In addition, a plurality of front mounting holes 431 the front cover 43 corresponding to a plurality of through holes 16 of the main part 10 each formed by a front screw 434 can be screwed together. In addition, a plurality of screw holes 441 in certain places on the cover 44 educated. Furthermore, the main part 10 corresponding to a plurality of screw holes 441 a plurality of mounting holes 17 on, each by a mounting screw 435 can be bolted together to the cover 44 with the lead 13 of the main part 10 connect to. The back cover 41 includes a plurality of rear mounting holes 411 , The two spacer plates 42 are respectively according to the rear mounting holes 411 with a through hole 421 formed, wherein the through holes 421 and the rear mounting holes 411 each by a rear screw 412 with the ones at the back of the main part 10 trained mounting parts 15 are screwed. Furthermore, the main part includes 10 in addition a plurality of mounting holes 433 , which in each case by a screw (not shown in the drawing) at certain points with a chair back X1 are screwed.

The knob device B0 basically has a displacement frame 50 , a telescopic pole 60 and a cover 70 on.

The adjustment framework 50 is with an adjustment space 51 formed, which at one end a displacement hole 52 and at the other end with a resilient recess 55 is formed, wherein a stop end 56 at the ends on both sides of the elastic recess 55 is trained. In addition, the adjustment framework includes 50 on one side a guide hole 57 that with an end incision 58 according to one side of the adjustment frame 50 is trained. Furthermore, an insert groove extends 59 from one end of the final cut 58 , Further, a mounting hole 54 at a certain point in the framework 50 formed by a connecting screw 73 with the connecting part 71 of the adjustment cover 70 screwed so that the adjustment cover 70 with the adjustment framework 50 is connectable. Furthermore, a plurality of communication holes 53 at certain points in the framework 50 educated. In addition, a fastening part 72 of the adjustment cover 70 each corresponding to the connection holes 53 arranged. Consequently, the fastening part 72 and the connection hole 53 each by a fixing screw 74 at a certain point with a chair rest X1 screwed.

The telescopic pole 60 is in the adjustment room 51 of the adjustment framework 50 slidably disposed and includes at one end an end recess 65 that until the end 56 of the adjustment framework 50 is displaceable and can be limited. On the inner wall of the end recess 65 is a positioning pin in the middle 64 protruding angeodnet, with a spring element 66 is engaged, the corresponding in the elastic recess 55 of the adjustment framework 50 is appropriate. Besides, the telescopic pole points 60 a depression 63 on, according to the leadership hole 57 and the insert groove 59 of the adjustment framework 50 is trained. There is also a mounting end 61 at the other end of the telescopic pole 60 formed, with a mounting hole 62 on the inside of the mounting end 61 is trained. It also has a push button 67 according to the mounting hole 62 a screw hole 68 on, with the screw hole 68 and the mounting hole 62 through a mounting screw 69 screwed to an attachment of the push button 67 at the end of assembly 61 the telescopic rod 60 to enable.

The drive cable Z0 has a first drive end Z1 and a second drive end Z3. A first restrictor end Z2 and a second restrictor end Z4 are respectively disposed at the end of the first drive end Z1 and at the end of the second drive end Z3, with the first drive end Z1 passing through the guide hole 57 of the adjustment framework 50 , the recess 63 the telescopic rod 60 and the final nick 58 of the adjustment framework 50 is arranged therethrough. First, the first limiting end Z2 located at the end of the first drive end Z1 becomes in the insertion groove 59 of the adjustment framework 50 positioned. Subsequently, the second drive end Z3 in the guide notch 144 and in the guide groove 146 of the main part 10 and additionally in the approach slot 22 of the guide piece 20 arranged. Thereafter, located at the end of the second drive end Z3 second limiting end Z4 in the attachment point 21 of the guide piece 20 positioned.

How out 6 to 11 is apparent, in use for adjusting the height of a chair back X1 first push button 67 the knob device B0 is pressed so that the first drive end Z1 of the drive cable Z0 through the recess 63 the telescopic rod 60 is pulled to a in the seat adjustment device A0 slidably mounted guide piece 20 to pull through the second drive end Z3, so that the insertion recess 27 and the deployment lead 26 of the guide piece 20 each of the gear 33 and the tooth groove 34 a guide rail 32 to solve. Subsequently, the user can adjust the height of a chair back X1 corresponding to a guide plate 30 Adjust vertically as desired. After adjusting the chair back to a desired height, the user can press the button 67 the telescopic rod 60 Press to the telescopic rod 60 using the spring elements 66 to return to their original position. At the same time it can be the leader 20 using the two spring elements 28 the insert recess 27 and the deployment lead 26 again in an engaged position with the gear 33 and with the tooth groove 34 Press to allow the X1 chair back again with the X2 chair seat and with the guide plate 30 is positionable.

LIST OF REFERENCE NUMBERS

A0

Seat adjustment device

10

Bulk

11

runner

12

slide

13

projections

14

accommodation space

141

guide

142

limiting end

143

guide rail

144

guide notch

145

elastic space

146

guide

15

Mounts

16

Through Hole

17

mounting hole

18

mounting hole

20

guide piece

21

attachment point

22

tab slot

23

elastic recess

24

lead end

25

side approach

26

fitting projection

27

Einsatzausnehmung

28

spring element

30

guide plate

31

guide piece

32

guide rail

33

gear

34

tooth groove

40

housing cover

41

rear cover

411

rear mounting hole

412

rear screw

42

spacer plate

421

Through Hole

43

front cover

431

front mounting hole

432

opening

433

mounting hole

434

front screw

435

Mounting screw

44

cover

441

screw hole

B0

Knob device

50

adjustment frame

51

adjustment space

52

slide hole

53

connecting hole

54

mounting hole

55

elastic recess

56

stop end

57

hole

58

Endeinschnitt

59

insert groove

60

telescopic rod

61

mounting end

62

mounting hole

63

deepening

64

positioning pin

65

end recess

66

spring element

67

pushbutton

68

screw hole

69

Mounting screw

70

adjustment cover

71

connecting part

72

attachment portion

73

connecting screw

74

fixing screw

Z0

drive cable

Z1

first drive end

Z2

first boundary end

Z3

second drive end

Z4

second limit end

X1

back of a chair

X2

chair seat

Claims (2)

An apparatus for raising and / or lowering a chair back, comprising: a seat adjuster (A0), a knob device (B0), and a drive cable (Z0), said drive cable (Z0) being interposed between said seat adjuster (A0) and said knob device (B0) and wherein the seat adjusting device (A0) and the knob device (B0) are each fixed at a specific position behind a chair back (X1), characterized in that the seat adjusting device (A0) has a main part (A0). 10 ), a leader ( 20 ) and a guide plate ( 30 ), the main part ( 10 ) on its front side at a predetermined location a projection ( 13 ) having a receiving space ( 14 ), wherein at one end in the receiving space ( 14 ) a guide groove ( 141 ) and at the other end of the recording room ( 14 ) a delimiting end ( 142 ) is provided, wherein a guide rail ( 143 ) from the middle of the limiting end ( 142 ), wherein an elastic space ( 145 ) on both sides of the guide rail ( 143 ) is arranged, wherein additionally a guide groove ( 146 ) at the end of the guide rail ( 143 ) is formed, wherein a guide notch ( 144 ) from one end of the guide groove ( 146 ), wherein a plurality of mounting parts ( 15 ) and a plurality of through holes ( 16 ) on both sides of the main part ( 10 ) at predetermined locations for attachment of a housing cover ( 40 ), wherein a plurality of mounting holes ( 18 ) at certain points of the main part ( 10 ) are adapted to an attachment of the main part ( 10 ) at a certain position of a chair back (X1), wherein a running rail ( 11 ) at the back of the main part ( 10 ), wherein a slide rail ( 12 ) at a certain point of the track ( 11 ) is arranged vertically, wherein the guide piece ( 20 ) at its front side at a predetermined location an attachment point ( 21 ), extending from one end of the attachment site ( 21 ) an approach slot ( 22 ), wherein an elastic recess ( 23 ) on both sides of the attachment point ( 21 ) is formed at a predetermined location, wherein a leading end ( 24 ) at one end of the guide piece ( 20 ), whereby a page approach ( 25 ) at the other end of the guide piece ( 20 ) is provided, wherein a Einsatzausnehmung ( 27 ) in the middle of one side of the page approach ( 25 ), wherein an insert projection ( 26 ) on both sides of the insert recess ( 27 ), the page approach ( 25 ) in the recording room ( 14 ) of the main part ( 10 ), wherein the attachment point ( 21 ) and the elastic recess ( 23 ) to the outside, with the page approach ( 25 ) facing inwards, and wherein the insert recess ( 27 ) and the deployment lead ( 26 ) each according to the slide rail ( 12 ) of the main part ( 10 ) are formed, and wherein the guide plate ( 30 ) is arranged vertically displaceable in the seat adjustment device (A0), and wherein the bottom is connected at a certain location with a chair seat (X2) and at the end face on a given place a leader ( 31 ) is formed, which on one side a guide strip ( 32 ), wherein the guide plate ( 30 ) on its front side at a predetermined location a guide piece ( 31 ), which on one side a guide strip ( 32 ), wherein the guide plate ( 30 ) in the track ( 11 ) of the main part ( 10 ) is slidably disposed, wherein the guide rail ( 32 ) on the slide rail ( 12 ) is slidably locatable, wherein a plurality of in-line mounted gears ( 33 ) and tooth grooves ( 34 ) each according to the Einsatzvorsprüngen ( 26 ) and the insert recesses ( 27 ) of the guide piece ( 20 ) on one side of the guide rail ( 32 ) and are engaged with each other, that the knob device (B0) a Verstellrahmen ( 50 ), a telescopic pole ( 60 ) and a cover ( 70 ), the framework ( 50 ) with an adjustment space ( 51 ) is formed, which at one end a displacement hole ( 52 ) and at the other end an elastic recess ( 55 ), wherein an abutment end ( 56 ) at the ends on both sides of the elastic recess ( 55 ), the frame of adjustment ( 50 ) on one side a guide hole ( 57 ) which has an end section ( 58 ) according to one side of the adjustment framework ( 50 ), wherein an insert groove ( 59 ) extending from one end of the end section ( 58 ), wherein a mounting hole ( 54 ) at a given point in the regulatory framework ( 50 ) formed by a connecting screw ( 73 ) with the connecting part ( 71 ) of the adjustment cover ( 70 ) is screwed, so that the adjustment cover ( 70 ) with the adjustment framework ( 50 ) is connectable, wherein a plurality of connecting holes ( 53 ) at certain points in the regulatory framework ( 50 ) is formed, wherein a fastening part ( 72 ) of the adjustment cover ( 70 ) each corresponding to the connecting holes ( 53 ) is arranged, wherein the fastening part ( 72 ) and the connection hole ( 53 ) each by a fixing screw ( 74 ) are screwed at a certain point with a chair back (X1), wherein the telescopic rod ( 60 ) in the adjustment space ( 51 ) of the regulatory framework ( 50 ) is slidably disposed and at one end an end recess ( 65 ), which ends ( 56 ) of the regulatory framework ( 50 ) is displaceable and can be limited thereto, wherein in the middle of the inner wall of the Endausnehmung ( 65 ) a positioning pin ( 64 ) is arranged projecting, which with a spring element ( 66 ) is engaged correspondingly in the elastic recess ( 55 ) of the regulatory framework ( 50 ), the telescopic rod ( 60 ) a recess ( 63 ) corresponding to the guide hole ( 57 ) and the insert groove ( 59 ) of the regulatory framework ( 50 ), wherein a mounting end ( 61 ) at the other end of the telescopic rod ( 60 ), wherein a mounting hole ( 62 ) on the inside of the mounting end ( 61 ), and wherein a pushbutton ( 67 ) according to the mounting hole ( 62 ) a screw hole ( 68 ), wherein the screw hole ( 68 ) and the mounting hole ( 62 ) by a mounting screw ( 69 ) are screwed to a mounting of the pushbutton ( 67 ) at the end of assembly ( 61 ) of the telescopic rod ( 60 ), and that the drive cable (Z0) has a first drive end (Z1) and a second drive end (Z3), wherein a first limit end (Z2) and a second limit end (Z4) respectively at the end of the first drive end (Z1) and are arranged at the end of the second drive end (Z3), wherein the first drive end (Z1) through the guide hole (Z3) 57 ) of the regulatory framework ( 50 ), the deepening ( 63 ) of the telescopic rod ( 60 ) and the final incision ( 58 ) of the regulatory framework ( 50 ), wherein the first limiting end (Z2) located in the insert groove (Z2) located at the end of the first drive end (Z1) 59 ) of the regulatory framework ( 50 ), wherein the second drive end (Z3) in the guide groove ( 144 ) and in the guide groove ( 146 ) of the main part ( 10 ) and additionally in the approach slot ( 22 ) of the guide piece ( 20 ) and wherein the second limiting end (Z4) located at the end of the second drive end (Z3) is located in the attachment point (Z3). 21 ) of the guide piece ( 20 ) is positioned. Device for lifting and / or lowering a chair back according to claim 1, characterized in that the seat adjustment device (A0) comprises a housing cover (A0). 40 ), which essentially has a front cover ( 43 ), a back cover ( 41 ), two spacer plates ( 42 ) and a cover ( 44 ), wherein the front cover ( 43 ) one according to the projection ( 13 ) of the main part ( 10 ) formed opening ( 432 ), wherein a plurality of front mounting holes ( 431 ) on the front cover ( 43 ) corresponding to a plurality of through holes ( 16 ) of the main part ( 10 ) are formed so that the front mounting holes ( 431 ) each with the through holes ( 16 ) by a front screw ( 434 ), wherein a plurality of screw holes ( 441 ) on the cover ( 44 ) are formed at predetermined locations, the main part ( 10 ) corresponding to a plurality of screw holes ( 441 ) a plurality of mounting holes ( 17 ), wherein the screw holes ( 441 ) and the mounting holes ( 17 ) each by a mounting screw ( 435 ) can be screwed together to the cover ( 44 ) on the projection ( 13 ) of the main part ( 10 ), the rear cover ( 41 ) a plurality of rear mounting holes ( 411 ), wherein the two spacer plates ( 42 ) according to the rear mounting holes ( 411 ) with a through hole ( 421 ) are formed, and wherein the through holes ( 421 ) and the rear mounting holes ( 411 ) each by a rear screw ( 412 ) with those at the back of the main body ( 10 ) trained mounting parts ( 15 ) are screwed.

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