CN2680111Y

CN2680111Y - Angle adjustable device of back of chair

Info

Publication number: CN2680111Y
Application number: CN 200320103899
Authority: CN
Inventors: 沈铭山; 游连庆
Original assignee: Johnson Health Tech Co Ltd
Current assignee: Johnson Health Tech Co Ltd
Priority date: 2003-11-04
Filing date: 2003-11-04
Publication date: 2005-02-23
Anticipated expiration: 2013-11-04

Abstract

An angle adjustable device of back of chair comprises a base, a back frame, a chair, a barometric rod and an adjust handle. The back frame is pivoted on the base, the chair is provided with a cushion which is fixed on the base and a back cushion which is fixed on the back frame, the barometric rod is connected with the back frame and the base, the adjustable handle can be rotatablely penetrated on the base and can control the barometric rod with contact in order to form a pressure leaking, inflated adjusting state and a pressure locking state. Therefore, the included angle between the base and the back frame can be changed, and the inclined angle of the chair back can be adjusted by a stepless displacement mode.

Description

Chair back angular adjustment apparatus

Technical field

The utility model relates to a kind of adjusting device, particularly relates to a kind of chair back angular adjustment apparatus that can adjust the angle of inclination.

Background technology

General telescopic air pressure rod, has characteristic can the section of nothing flexible, the location, and install easily, can simplify the peripheral structure of other collocation, therefore, essential element when being usually used in seat as ascending, descending, at present but not having a kind of seat on the market is the restriction that can break through on the structural design, and then utilize this air pressure rod, change the angle of inclination of the chair back, so, the patent case such as announce No. 200267, No. 176275, No. 380397 such as Taiwan, all adopt quite complicated element and mode of connection, reached the purpose of adjusting chair back angle of inclination.But this case applicant is still adhering to excelsior spirit not as limit, be engaged in the exploitation and the research of chair back angular adjustment apparatus, hope can develop a kind of can be in conjunction with the chair back angular adjustment apparatus of air pressure rod, and can reach the purpose of adjusting the chair back with the composition element of more simplifying.

The utility model content

The purpose of this utility model is to provide a kind of chair back angular adjustment apparatus that can adjust chair back angle of inclination by air pressure rod.

Characteristics of the present utility model are: this chair back angular adjustment apparatus includes a pedestal, a back of the body frame, a seat, an air pressure rod and an adjustment handle.This back of the body frame is to run through pedestal and be hubbed on the pedestal, and have pass pedestal one on the section of passing and the section of passing once.This seat has a cushion that is fixed on pedestal one end face, and a back pad that is fixed on the back of the body frame, is formed with an angle between this back pad and cushion.This air pressure rod has and carries on the back the end that the section of passing links under the frame, reaches the other end that links with pedestal one bottom surface.But this adjustment handle is being located on the pedestal of turn, but and this air pressure rod other end of touch-control, this air pressure rod forms the adjustment state of pressure release, inflation, and the lock-out state of level pressure, and air pressure rod is positioned at the adjustment state, be to be compressed or to inflate stretching, extension, and then the section of passing under the traction back of the body frame, make on the back of the body frame section of passing drive that back pad changes and the angle of cushion, air pressure rod is positioned at lock-out state, be the section of passing under the location back of the body frame, make on the back of the body frame angle of the section of passing maintenance back pad and seat cushion constant.

Reach whereby by air pressure rod and adjust the angle that the chair back tilts.

Description of drawings

Below by most preferred embodiment and accompanying drawing chair back angular adjustment apparatus of the present utility model is elaborated, in the accompanying drawing:

Fig. 1 is a three-dimensional exploded view, and a preferred embodiment of the utility model chair back angular adjustment apparatus is described;

Fig. 2 is a stereogram, and the combination outward appearance of this preferred embodiment is described;

Fig. 3 is the stereogram of an end apparent direction, and the connection relationship of this preferred embodiment is described;

Fig. 4 is a side view, illustrates that the angle between a back pad and a seat cushion is less in this preferred embodiment;

Fig. 5 is a side view, illustrates that the angle between this back pad and this seat cushion is bigger in this preferred embodiment.

The specific embodiment

Consult Fig. 1, Fig. 2, Fig. 3, a preferred embodiment of the utility model chair back angular adjustment apparatus includes a pedestal 1, a back of the body frame 2, a seat 3, an air pressure rod 4 and an adjustment handle 5.

This pedestal 1 has a hollow out pedestal 11 and an ear seat 12 that without exception is the C type.This pedestal 11 have by an end face 111 run through and a contiguous rear end 112 wear mouthfuls 113, and two along an axis X direction to standing in the auricle 114 of wearing mouthful 113 both sides.This ear seat 12 is the positions that are installed in pedestal 11 1 bottom surfaces 115 and a contiguous front end 116.

This back of the body frame 2 has a support body 21 and an axostylus axostyle 22.This support body 21 be pass this pedestal 11 wear mouthfuls 113, and have a perforation 212 that runs through along this axis X direction, make these perforations form the section of passing 213 on more than 212, these perforations form the section of passing 214 below 212.This axostylus axostyle 22 is to run through auricle 114 and support body 21 perforations 212, this support body 21 is hubbed on the pedestal 1 and can be around the forward and backward swing of this axis X.

This seat 3 has a cushion 31 that is fixed on pedestal 11 end faces 111, and a back pad 32 that is fixed on back of the body frame 2 support bodys 21.31 of this back pad 32 and cushions are formed with an angle.

This air pressure rod 4 has the

joint seat

43,44 and two

latches

45,46 of the cylinder body 41 that can stretch relatively and a piston rod 42, two U-shapeds.This joint seat 43 is to be fixed on cylinder body 41 1 ends 411, and is set in 214 of 21 times sections of passing of support body.This joint seat 44 is to be fixed on piston rod 42 1 ends 421, and involutory with ear seat 12.This latch the 45, the 46th passes joint seat 44 and ear seat 12 and

joint seat

43 and 21 times sections of passing 214 of support body respectively, makes air pressure rod 4 be positioned at pedestal 11 bottom surfaces 115, and forms interlock with support body 21.

This adjustment handle 5 has a rotatable bull stick 51 and one group of control sheet 52.This bull stick 51 has one and is set in pedestal 1 pedestal 11 and the round rod segment 511 of adjacent gas pressure bar 4 piston rods 42 1 ends 421, and one be set in pedestal 1 outer means 512.This group control sheet 52 is fixed and towards piston rod 42 1 ends 421 with round rod segment 511, can rotate with bull stick 51 to press or break away from piston rod 42 1 ends 421, but air pressure rod 4 forms the adjustment state of pressure releases, inflation, and the lock-out state of level pressure.

Consult Fig. 4, Fig. 5, whereby, the user of seating on seat 3, need only with hand pull bull stick means 512, be positioned at the adjustment state with touch-control air pressure rod 4, press back pad 32 after just can the application of force, making support body 21 is shaft swing with the axis X, at this moment, the following section of passing 214 of this support body 21 can compressed gas pressure bars 4, and air pressure rod 4 is shunk, and the section of passing 214 beat forward under the traction, making the section of passing 213 drive back pad 32 recedes, enlarge the angle of back pad 32 and cushion 31, unclasp bull stick 51 to the user, make air pressure rod 4 reply the lock-out state of level pressure after, just can make the section of passing on the support body 21 213 keep back pads 32 constant, reach the purpose of adjustment with the angle of seat cushion 31.

Certainly, the user also can be under the adjustment state, press this back pad 32 after discharging, borrow external force that air pressure rod 4 is extended in the process of inflation gradually, and draw 21 times sections of passing 214 of support body beat backward, making the section of passing 213 drive back pad 32 replys forward, and dwindle the angle of back pad 32 and cushion 31, unclasp bull stick 51 to the user, make air pressure rod 4 reply the lock-out state of level pressure after, just can make the section of passing on the support body 21 213 keep back pads 32 constant, reach the purpose of adjustment with the angle of seat cushion 31.

According to the above as can be known, chair back angular adjustment apparatus of the present utility model has following advantage and effect:

The utility model can be adjusted the angle of inclination of back pad 32 in conjunction with air pressure rod 4, and not only simple structure can be simplified it and change outside the associated component, and the mode adjustment angle of inclination that back pad 32 is moved with no section, and can meet the human body merit, promotes the comfortableness when taking.

Claims

1. chair back angular adjustment apparatus is characterized in that it includes:

One pedestal;

One back of the body frame is to be hubbed on the pedestal;

One seat has a cushion that is fixed on the pedestal, and a back pad that is fixed on the back of the body frame, is formed with an angle between this back pad and cushion;

One air pressure rod has an end that links with back of the body frame, reaches the other end that links with pedestal;

One adjusts handle, be being located on the pedestal of turn, and this air pressure rod other end of touch-control, this air pressure rod forms the adjustment state of pressure release, inflation, and the lock-out state of level pressure, air pressure rod is positioned at the adjustment state, be to be compressed and to inflate stretching, extension, and then traction back of the body frame, back of the body frame changes the angle with pedestal, air pressure rod is positioned at lock-out state, and the angle of back of the body frame and pedestal immobilizes.

2. chair back angular adjustment apparatus as claimed in claim 1, it is characterized in that: this adjustment handle has bull stick and one group of control sheet of a rotation, this bull stick has the round rod segment of an adjacent gas pressure bar other end, and one for grip means, this group control sheet is fixed and towards the air pressure rod other end with round rod segment, press the air pressure rod other end with the bull stick rotation, air pressure rod forms the adjustment state.

3. chair back angular adjustment apparatus as claimed in claim 1, it is characterized in that: this pedestal has one and wears mouth by what end face ran through, and two be formed on the auricle of Chuan Kou both sides along an axis direction, this back of the body frame has a support body and an axostylus axostyle, this support body is to be set between the auricle of this pedestal, and have a perforation that runs through along this axis direction, and this axostylus axostyle is the perforation that runs through auricle and support body, support body is hubbed on the pedestal and can be around this axis swing.