CN113662380A - Chair back adjusting assembly for chair and chair - Google Patents
Chair back adjusting assembly for chair and chair Download PDFInfo
- Publication number
- CN113662380A CN113662380A CN202110885319.7A CN202110885319A CN113662380A CN 113662380 A CN113662380 A CN 113662380A CN 202110885319 A CN202110885319 A CN 202110885319A CN 113662380 A CN113662380 A CN 113662380A
- Authority
- CN
- China
- Prior art keywords
- groove
- seat
- clamping
- bayonet lock
- jacking
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000008859 change Effects 0.000 claims abstract description 4
- 230000033001 locomotion Effects 0.000 claims description 8
- 230000000903 blocking effect Effects 0.000 abstract description 4
- 230000007246 mechanism Effects 0.000 description 14
- 230000008901 benefit Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000036651 mood Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/36—Support for the head or the back
- A47C7/40—Support for the head or the back for the back
- A47C7/402—Support for the head or the back for the back adjustable in height
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/36—Support for the head or the back
- A47C7/40—Support for the head or the back for the back
- A47C7/42—Support for the head or the back for the back of detachable or loose type
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/36—Support for the head or the back
- A47C7/40—Support for the head or the back for the back
- A47C7/46—Support for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs
- A47C7/462—Support for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs adjustable by mechanical means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
The invention discloses a chair back adjusting assembly for a chair and the chair, which comprise a first part and a second part which move relatively, wherein the first part is connected with a hanging blocking part, the second part is connected with a gear part, and the hanging blocking part and the gear part are in sliding fit with a sliding groove through a sliding block; the gear piece is provided with clamping grooves distributed along the sliding direction, the engaging gear piece comprises elastic clamping pins engaged with the clamping grooves, and the clamping pins are switched between the clamping grooves when the engaging gear piece and the gear piece slide relatively; the hanging stopper also comprises a state switching component which is configured to change the matching relation of the bayonet and the bayonet; the state switching component is provided with a working position and a locking position which can be switched mutually, when the state switching component is positioned at the working position, the bayonet lock is in a working state, and the bayonet lock is subjected to elastic force towards the bayonet lock; when the state switching assembly is positioned at the locking position, the bayonet lock is in a locking state and is subjected to reverse elasticity; compared with the prior art, the reciprocating regulation between the parts is realized, the switch is not needed, and the operation is convenient.
Description
Technical Field
The invention relates to the field of furniture, in particular to a chair back adjusting assembly for a chair and the chair.
Background
In modern life, adjustable furniture is becoming more popular in order to meet different requirements of people, seats are being taken as examples: nowadays, the functions of the seat are more and more abundant, most of the functions are realized by adjusting a certain part of the seat, and as the adjusting mechanisms on most of the seats adopt air levers or electric push rods and the like, more and more switches are used for controlling and adjusting, so that the attractiveness of the seat is seriously influenced, and meanwhile, the operation of a user is complicated, so that the user experience is influenced; sometimes misoperation is generated to influence the mood of a user, and meanwhile, the switch is damaged, even some switches can not be operated at will and can be operated only by bending down or getting up of the user; such chairs look more tall but make simple things more complicated, do not take into account the interaction with the user in actual use of the product, and are not ergonomic; therefore, to simplify the operation, a mechanism for adjusting the components without a switch is required.
The Chinese patent of CN201820253966.X discloses a chair with a waist rest adjusting function, which comprises a chair back, a chair seat and bottom feet, wherein a cavity is arranged on the chair back, a supporting body is arranged at the upper part in the cavity through a lifting and folding device, the lifting and folding device comprises a fixed seat and a connecting arm, a fixed arm is arranged on the fixed seat, the fixed arm is hinged with the connecting arm, at least two connecting arms are fixed and move synchronously through a rigid connecting block, the fixed seat is fixed with the chair back, and the rigid connecting block is fixed with the supporting body. The chair back is provided with the cavity, the supporting piece is arranged in the cavity, the chair back is hinged with the folding device, and the pawl and the ratchet wheel are used for positioning and supporting, so that the lumbar support adjustment of the chair back is realized. According to the invention, the back load is supported by the ratchet mechanism arranged in the ratchet mechanism, the connection between the two arms of the ratchet mechanism and the chair back component is weak, the supporting capability is influenced, the assembly is difficult, and the ratchet mechanism is not suitable for modularized assembly production.
Disclosure of Invention
In order to solve the technical problem, the invention provides a chair back adjusting assembly for a chair, which comprises a first part and a second part which can move relatively, wherein the two parts are controlled to move or lock through a sliding gear engaging mechanism, and the sliding gear engaging mechanism controls the state of a clamping pin through the elasticity of a spring, so that the clamping pin can be clamped and matched with a clamping groove and switched between the clamping grooves, and the clamping pin can be separated from the clamping groove and return to the initial position.
Still further, the invention provides a seat applying the chair back adjusting assembly.
The technical scheme of the invention is realized as follows:
the chair back adjusting assembly comprises a first component and a second component which move relatively, the first component is connected with a hanging blocking piece, the second component is connected with a gear piece, and the hanging blocking piece and the gear piece are in sliding fit through a sliding block and a sliding groove so that the first component and the second component move relatively; the gear part is provided with a plurality of clamping grooves distributed along the sliding direction, the gear engaging part comprises elastic clamping pins which are in clamping fit with the clamping grooves, and when the gear part and the gear part slide relatively, the clamping pins are switched between the clamping grooves; the hanging stopper also comprises a state switching component which is configured to change the matching relationship between the bayonet lock and the clamping groove; the state switching component is provided with a working position and a locking position which can be switched mutually, when the state switching component is positioned at the working position, the bayonet lock is in a working state, and the bayonet lock is subjected to elastic force towards the bayonet lock; when the state switching assembly is located at the locking position, the clamping pin is in the locking state, the clamping pin is subjected to reverse elastic force, and the first component and the second component are in a relatively fixed state.
The gear piece and the gear engaging piece are respectively connected to two different parts, so that the two parts can realize adjustment work, such as lifting of a chair back, adjustment of the depth of a chair back seat and the like; the mechanism does not need to be switched on or off, and only needs to directly operate the components to enable the two components to move relatively, so that the operation is simple; because the cooperation state between bayonet lock and the draw-in groove can be switched to the state switching subassembly, therefore the bayonet lock is when being in operating condition for a plurality of draw-in groove becomes the gear, and the bayonet lock is exactly pressing the gear between two parts when the draw-in groove removes at relative movement, and the bayonet lock can break away from the draw-in groove when switching to the lock-out state, directly crosses a plurality of draw-in grooves and gets back to initial position, does benefit to the regulation, convenient operation.
Preferably, the state switching assembly comprises a working spring and a locking spring, the working spring and the locking spring act on the bayonet lock in opposite directions, and the working spring is arranged on one side of the bayonet lock, which is far away from the bayonet lock, and applies elastic force towards the bayonet lock to the bayonet lock; the locking spring is arranged on one side of the bayonet lock close to the bayonet lock and applies elastic force far away from the bayonet lock to the bayonet lock; when the bayonet lock is in a working state, the working spring and the locking spring act on the bayonet lock together, and the whole bayonet lock is subjected to elastic force towards the bayonet lock; when the bayonet lock is in a locking state, the locking spring acts on the bayonet lock to enable the bayonet lock to leave the bayonet lock. The working spring and the locking spring exert elastic forces in different directions on the clamping pin so as to switch the state of the clamping pin, so that the clamping pin can be clamped with the clamping groove and the position can be switched between the clamping grooves, the clamping pin can be separated from the clamping groove, the switching of the state of the clamping pin is realized at low cost, and the operation is simplified.
Preferably, the hanging stopper further comprises a base connected with the sliding block, two end faces of the base are respectively provided with a containing groove and an opening, the opening is arranged towards the clamping groove, and the containing groove is communicated with the opening; the bayonet lock is arranged in the opening in a sliding manner and does telescopic motion; the state switching assembly is arranged in the accommodating groove and acts on the clamping pin.
Preferably, the state switching assembly further comprises a rotating seat and a jacking seat, and both the rotating seat and the jacking seat are arranged in the accommodating groove; the jacking seat is arranged on the clamping pin, and two ends of the locking spring respectively abut against the jacking seat and the bottom surface of the accommodating groove; the rotating seat is positioned on one side of the jacking seat, which is back to the clamping pin, and the working spring acts on the rotating seat and enables the rotating seat to be close to the jacking seat; the rotating seat and the jacking seat are matched through the inclined plane, so that the rotating seat can rotate after the jacking seat jacks the rotating seat.
Preferably, at least one guide groove and at least one locking groove are arranged on the inner wall of the accommodating groove, and the guide groove and the positioning groove are arranged adjacent to each other along the circumferential direction; the jacking seat is provided with a guide block, the guide block is arranged in the guide groove, and the guide block slides in the guide groove along with the movement of the clamping pin; the rotating seat is provided with a state switching tooth, the state switching tooth is switched between the guide groove and the locking groove along with the rotation of the rotating seat, and the guide groove or the locking groove limits the rotation of the rotating seat when the state switching tooth is positioned in the guide groove or the locking groove; when the state switching teeth enter the guide grooves, the state switching assembly is in a working position, the elastic force of the working spring is applied to the jacking seat through the rotating seat and resists the elastic force of the locking spring to enable the whole clamping pin to be subjected to the elastic force towards the clamping groove; when the state switching teeth enter the locking groove, the state switching assembly is in the locking position, the elastic force of the working spring is applied to the locking groove, and the clamping pin leaves the clamping groove under the elastic force of the locking spring. The matching of the jacking seat and the rotating seat enables the rotating seat to switch positions between the guide groove and the locking groove, and therefore the direction of the force applied by the working spring and the locking spring to the clamping pin together is determined, and the switching of the state of the clamping pin is realized.
Preferably, the jacking seat is also provided with jacking teeth, and when the jacking seat jacks up the rotating seat, the jacking teeth are in contact fit with the tooth surfaces of the state switching teeth; when the jacking teeth push the state switching teeth tips out of one of the guide groove or the locking groove, the rotating seat rotates to enable the state switching teeth to enter the other one of the guide groove or the locking groove.
Preferably, the guide block protrudes out of the jacking seat and the jacking teeth along the radial direction; the jacking teeth axially protrude out of the jacking seat and the guide block. The guide block protrudes and is always positioned in the guide groove, so that the jacking seat can only move along the length direction of the guide groove and cannot rotate, and the rotating seat can normally rotate and switch between the guide groove and the locking groove.
Preferably, the bottom of the guide groove is closer to the bottom surface of the receiving groove than the locking groove. When the state switching teeth enter the locking grooves, the working spring can only act on the base and cannot apply elastic force to the bayonet lock, so that the bayonet lock is in a retracted locking state; after the state switching teeth enter the guide grooves, the working spring can act on the clamping pins, so that the clamping pins are in a working state of being clamped with the clamping grooves.
Preferably, the accommodating groove is closed by an end cover, and the end cover is clamped and matched with the accommodating groove through a clamping hole of the buckle; two ends of the working spring are respectively abutted against the end cover and the rotating seat.
Preferably, the gear part comprises a clamping tooth section, a jacking section and a resetting section, and the clamping grooves are distributed on the clamping tooth section; the jacking section is configured to enable the state switching assembly to be switched from the working position to the locking position, and when the clamping pin moves from the jacking section to the resetting section and passes through the clamping tooth section, the clamping pin is in a locking state and directly passes over the clamping tooth section; the reset section is configured to enable the state switching assembly to be switched to a working position from locking, the bayonet lock is in a working state when the bayonet lock moves from the reset section to the jacking section and passes through the bayonet tooth section, and the bayonet lock is switched between the bayonet locks.
A seat comprising a seat back adjustment assembly as described above for a seat, the first component being a back support of the seat; the second component is a back bracket of the seat configured to support the body of the back support; the back support is arranged at the front side of the back bracket and is configured to support the waist and the back of a human body; the upper part of the back support is connected with the upper end of the back support, the lower end of the back support moves relative to the back support in an opening and closing manner, and when the lower end of the back support is opened forwards, a large included angle is formed between the whole back support and the back support; when the lower end of the back support piece is closed backwards, a smaller included angle is formed between the whole back support piece and the back support; a connecting rod is arranged between the back support piece and the back support, one end of the connecting rod is rotatably connected with the back support piece, the other end of the connecting rod is connected with the hanging stopper, and the sliding groove and the stopping stopper are arranged on the back support; when the back support piece is opened forwards or closed backwards, the other end of the connecting rod moves along the sliding groove.
Preferably, the upper part of the back support is rotatably connected with the upper end of the back support through a ball head or a rotating shaft, and when the back support moves in an opening and closing mode, the other end of the connecting rod moves up and down along a sliding groove in the back support.
The design starting point, the idea and the beneficial effects of the invention adopting the technical scheme are as follows:
1. the furniture can achieve different functions by changing the relative positions of certain two parts or components on the furniture, the catch part and the gear part of the sliding catch mechanism can be respectively connected to the two parts, the relative position between the two parts can be changed, the two parts can be supported to keep the position between the two parts, and the furniture can also obtain different states and functions through the different relative positions of the two parts, such as lifting of a chair back, adjustment of the depth of a chair back seat and the like.
2. The mechanism is low in cost, high in modularization degree, wide in application range, simple and fast to assemble and beneficial to improving the production efficiency.
3. The state switching assembly can make the bayonet lock switch between operating condition and locking state, and when the bayonet lock switched to operating condition, the bayonet lock can cooperate and can switch the position between the bayonet lock with the bayonet lock joint, and when the bayonet lock switched to locking condition, the bayonet lock broke away from the bayonet lock, can directly get back to initial position, does benefit to the regulation, convenient operation.
Drawings
Fig. 1 is a schematic perspective view of the lumbar-back support assembly in embodiment 1 of the present invention;
FIG. 2 is a side view of the lumbar support height adjustment of the lumbar support assembly in embodiment 1 of the present invention;
fig. 3 is a schematic perspective view of the upper back assembly and the lifting frame in embodiment 1 of the present invention;
fig. 4 is a schematic perspective view of a mounting groove formed on a back support in embodiment 1 of the present invention;
fig. 5 is a schematic perspective view of the engagement of the catch member with the shift member in embodiment 1 of the present invention;
FIG. 6 is a schematic perspective view of a base and its internal structure in example 1 of the present invention;
FIG. 7 is a schematic perspective view of the working spring and the locking spring of the embodiment 1 of the present invention with respect to the latch;
fig. 8 is a cross-sectional view of a flight in embodiment 1 of the invention;
FIG. 9 is a schematic perspective view of the jacking seat and the latch according to embodiment 1 of the present invention;
FIG. 10 is a perspective view of a rotary base according to the present invention in example 1;
FIG. 11 is a cross-sectional view of the catch in the operating state of the bayonet in embodiment 1 of the present invention;
FIG. 12 is a sectional view showing the relative positions of the jack-up teeth and the state switching teeth in the operating state of the bayonet lock in embodiment 1 of the present invention;
FIG. 13 is a sectional view showing the state switching teeth in the guide grooves in the working state of the click pin in embodiment 1 of the present invention;
FIG. 14 is a cross-sectional view of the catch when the latch is switched from the operating state to the locking state in embodiment 1 of the present invention;
FIG. 15 is a sectional view showing the relative positions of the lifting teeth and the state switching teeth when the latch is switched from the operating state to the locked state in embodiment 1 of the present invention;
FIG. 16 is a sectional view showing the state switching teeth pushed out of the guide grooves when the click pin is switched from the operation state to the lock state in embodiment 1 of the present invention;
FIG. 17 is a cross-sectional view of the catch in the case of the latch of embodiment 1 of the present invention in the locked state;
FIG. 18 is a sectional view showing the relative positions of the jack-up teeth and the state switching teeth in the case where the latch is in the locked state in embodiment 1 of the present invention;
FIG. 19 is a sectional view showing the state switching teeth in the lock groove when the latch is in the lock state in embodiment 1 of the present invention;
fig. 20 is a sectional view of a shift position member in embodiment 1 of the invention;
fig. 21 is a schematic view of the state of use of the present invention in embodiment 2.
The figures are numbered: a back support 1; an upper back assembly 21; a lifting frame 301; a shift member 302; a hanging member 303; a card slot 304; a click pin 305; a base 306; a rotating base 307; a jack-up stand 308; a working spring 309; a locking spring 310; a receiving groove 311; an opening 312; a mounting groove 313; a guide groove 314; a locking groove 315; a guide block 316; the state switching teeth 317; a snap tooth segment 318; a jacking section 319; a reset section 320; jacking up the ramp 321; a reset ramp 322; an end cap 323; lifting the teeth 324.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
In the description of the present invention, the term "at least one" means one or more than one unless explicitly defined otherwise. The terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The specific embodiment of the invention is as follows:
example 1: as shown in fig. 5, the present invention firstly provides a sliding gear mechanism, which comprises a gear 302 and a gear 303, wherein the gear 303 and the gear 302 are slidably engaged with each other through a sliding block and a sliding groove, and the gear 303 and the gear 302 are respectively connected to two furniture parts, so that the relative movement between the two parts can be realized, and the furniture has a new adjustable function.
Specifically, as shown in fig. 8 and 20, the gear member 302 is provided with a plurality of engaging slots 304 distributed along the sliding direction, the engaging member 303 includes an elastic engaging pin 305 engaged with the engaging slots 304, and when the engaging member 303 slides relative to the gear member 302, the engaging pin 305 switches positions between the engaging slots 304; the gear 302 further comprises a latch section 318, a jacking section 319 and a resetting section 320, wherein the latches 304 are distributed on the latch section 318; the jacking section 319 has a jacking slope 321, the resetting section 320 has a resetting slope 322, the highest points of the jacking slope 321 and the resetting slope 322 are both higher than the latch section 318, and the jacking slope 321 and the resetting slope 322 are arranged oppositely, i.e. the inclination directions of the two are approximately opposite.
As shown in fig. 6-10, the gear engaging member 303 further includes a status switch assembly configured to change the mating relationship of the detent 305 and the detent 304; the state switching component is provided with an operating position and a locking position which can be switched mutually, when the state switching component is positioned at the operating position, the clamping pin 305 is in an operating state, and the clamping pin 305 is subjected to elastic force towards the clamping groove 304; when the state switching assembly is located at the locking position, the detent 305 is in a locking state, and the detent 305 is subjected to reverse elastic force; the jacking segment 319 is configured to cause the state switching assembly to switch from the active position to the locked position, and when the bayonet 305 moves from the jacking segment 319 to the reset segment 320 past the bayonet segment 318, the bayonet 305 is in the locked state and the bayonet 305 passes directly over the bayonet segment 318; reset segment 320 is configured to cause the state switching assembly to switch from the locked position to the activated position, and when detent 305 moves from reset segment 320 to jack segment 319 past detent segment 318, detent 305 is in the activated state and detent 305 switches position between detents 304.
The gear 302 and the gear 303 are respectively connected to two different components, so that the two components can realize adjustment work, such as lifting of a chair back, adjustment of the depth of the chair back and the like; the mechanism does not need to be switched on or off, and only needs to directly operate the components to enable the two components to move relatively, so that the operation is simple; because the cooperation state between bayonet lock 305 and draw-in groove 304 can be switched to the state switching subassembly, therefore bayonet lock 305 makes a plurality of draw-in groove 304 become to keep off the position when being in operating condition, and bayonet lock 305 is just according to keeping off the position between two parts and moving relatively when the draw-in groove 304 removes, and bayonet lock 305 can break away from draw-in groove 304 when switching to the locking state, directly gets back to initial position beyond a plurality of draw-in grooves 304, does benefit to the regulation, convenient operation.
The hanging part 303 comprises a base 306 connected with the slider, two end faces of the base 306 are respectively provided with a containing groove 311 and an opening 312, the opening 312 is arranged towards the clamping groove 304, and the containing groove 311 is communicated with the opening 312; the cross sections of the opening 312 and the accommodating groove 311 are both circular, and the groove diameter of the accommodating groove 311 is larger than the caliber of the opening 312; the bayonet 305 is slidably arranged in the opening 312 and performs telescopic movement; the state switching component is arranged in the containing groove 311 and acts on the bayonet 305; specifically, the state switching assembly comprises a working spring 309, a locking spring 310, a rotating seat 307 and a jacking seat 308, all of which are located in the accommodating groove 311, the locking spring 310, the jacking seat 308, the rotating seat 307 and the working spring 309 are respectively arranged from the position close to the bayonet 305 to the position far away from the bayonet 305, wherein the jacking seat 308 and the bayonet 305 are integrally formed; the working spring 309 and the locking spring 310 act on the detent 305 in opposite directions, and the working spring 309 is disposed on a side of the detent 305 away from the detent 304 and applies an elastic force to the detent 305 toward the detent 304; a lock spring 310 is provided on a side of the click pin 305 close to the click slot 304 and exerts an elastic force on the click pin 305 away from the click slot 304; when the bayonet 305 is in the working state, the working spring 309 and the locking spring 310 act on the bayonet 305 together and the bayonet 305 is subjected to the elastic force towards the bayonet 304 as a whole; when bayonet 305 is in a locked state, locking spring 310 acts on bayonet 305 to move bayonet 305 away from bayonet 304.
The operating spring 309 and the locking spring 310 apply elastic forces in different directions to the latch 305, so as to switch the state of the latch 305, thereby not only enabling the latch 305 to keep clamping with the latch groove 304 and switch positions between the latch grooves 304, but also enabling the latch 305 to be separated from the latch groove 304, realizing switching of the state of the latch 305 at low cost and simplifying operation.
Further, two ends of the locking spring 310 respectively abut against the bottom surfaces of the jacking seat 308 and the accommodating groove 311; the rotating seat 307 is positioned on the side of the jacking seat 308 opposite to the bayonet 305, and the working spring 309 acts on the rotating seat 307 and makes the rotating seat 307 close to the jacking seat 308; the rotating seat 307 and the jack-up seat 308 are engaged with each other by an inclined surface, so that the jack-up seat 308 jacks up the rotating seat 307, and then the rotating seat 307 can rotate.
As shown in fig. 6 and 11-19, four guide grooves 314 and four locking grooves 315 are formed on the inner wall of the accommodating groove 311, and the guide grooves 314 and the positioning grooves are circumferentially arranged adjacently; four guide blocks 316 are arranged on the jacking seat 308, the guide blocks 316 are arranged in the guide grooves 314, and the guide blocks 316 slide in the guide grooves 314 along with the movement of the clamping pins 305; the rotating base 307 is provided with a state switching tooth 317, the state switching tooth 317 is switched between the guide groove 314 and the locking groove 315 along with the rotation of the rotating base 307, and the guide groove 314 or the locking groove 315 limits the rotation of the rotating base 307 when the state switching tooth 317 is positioned in the guide groove 314 or the locking groove 315; the containing groove 311 is closed by an end cover 323, and the end cover 323 is matched with the containing groove 311 in a clamping manner through a clamping hole; two ends of the working spring 309 abut against the end cover 323 and the rotating seat 307 respectively; when the state switching teeth 317 enter the guide grooves 314, the state switching assembly is in the working position, the elastic force of the working spring 309 is exerted on the jacking seat 308 through the rotating seat 307 and the bayonet pins 305 are subjected to the elastic force towards the bayonet grooves 304 as a whole against the elastic force of the locking spring 310; when the state switching tooth 317 enters the locking groove 315, the state switching assembly is in the locking position, the elastic force of the working spring 309 is applied to the locking groove 315, and the bayonet pin 305 is separated from the bayonet groove 304 by the elastic force of the locking spring 310; the cooperation of the jacking seat 308 and the rotating seat 307 enables the rotating seat 307 to switch positions between the guide groove 314 and the locking groove 315, and thus determines the direction of the force applied by the working spring 309 and the locking spring 310 to the bayonet 305 together, so as to realize the switching of the state of the bayonet 305; the bottom of the guide groove 314 is closer to the bottom surface of the receiving groove 311 than the locking groove 315; when the state switching teeth 317 enter the locking grooves 315, the operating spring 309 can only act on the base 306 and cannot apply an elastic force to the detent 305, so that the detent 305 is in a retracted locking state; when the position switching tooth 317 enters the guide groove 314, the operating spring 309 can act on the latch 305, so that the latch 305 is in an operating position in which it can be latched with the latch groove 304.
The jacking seat 308 is also provided with jacking teeth 324, and when the jacking seat 308 jacks up the rotating seat 307, the jacking teeth 324 are in tooth surface contact fit with the state switching teeth 317; when the ejecting tooth 324 ejects the state switching tooth 317 out of one of the guide groove 314 or the lock groove 315, the rotating holder 307 rotates to enter the state switching tooth 317 into the other of the guide groove 314 or the lock groove 315; the guide block 316 protrudes from the jacking seat 308 and the jacking teeth 324 in the radial direction; the jacking teeth 324 project axially beyond the jacking seat 308 and the guide block 316; the guide block 316 protrudes and the guide block 316 is always located in the guide groove 314, which makes the lifting seat 308 only move along the length direction of the guide groove 314 and cannot rotate, ensuring that the rotating seat 307 can normally rotate and switch between the guide groove 314 and the locking groove 315.
As shown in fig. 11-19, when the detent 305 is switched between the detent grooves 304, the working spring 309 and the locking spring 310 cooperate with the detent 305 to apply a spring force to the detent 305 toward the detent groove 304, so that the state switching tooth 317 is in the guide groove 314 and presses against the lifting tooth 324, and each time the detent 305 is switched to the next detent groove 304, the detent 305 will telescope in the opening 312 and eventually engage the detent groove 304; when the bayonet 305 reaches the jacking section 319, the bayonet 305 slides on the jacking inclined plane 321 and drives the jacking seat 308 to jack up the rotating seat 307, when the state switching tooth 317 is jacked out of the guide groove 314 by the jacking tooth 324, the state switching tooth 317 slides due to the inclined plane fit between the jacking teeth 324 and drives the rotating seat 307 to rotate, the state switching tooth 317 also rotates into the locking groove 315, at the moment, the rotating seat 307 is blocked by the locking groove 315 and cannot be in pressing contact with the jacking seat 308, the working spring 309 cannot act on the bayonet 305, the bayonet 305 is only subjected to the elastic force of the locking spring 310 and retracts integrally into the base 306, but the bayonet 305 still protrudes out of the base 306, and at the moment, the bayonet 305 is separated from the bayonet groove 304 and can directly pass over the bayonet tooth section 318 to reach the resetting section 320; when the bayonet pin 305 reaches the reset section 320, the bayonet pin 305 slides on the reset inclined plane 322 and drives the jacking seat 308 to jack up the rotating seat 307, when the state switching tooth 317 is jacked out of the locking groove 315 by the jacking tooth 324, the state switching tooth 317 slides due to the inclined plane fit between the jacking teeth 324 and drives the rotating seat 307 to rotate, the state switching tooth 317 also rotates into the guide groove 314, at this time, the state switching tooth 317 extrudes the jacking teeth 324 due to the elastic force of the working spring 309, the bayonet pin 305 is again subjected to the elastic force of the working spring 309 and protrudes more out of the base 306, and the whole bayonet pin 305 is subjected to the elastic force towards the bayonet groove 304 to be again in snap fit with the bayonet groove 304 and returns to the bayonet tooth section 318.
As shown in fig. 1-5, in the present embodiment, a slide gear mechanism is used in the seat back assembly, enabling the up-down adjustment of the upper back assembly 21 in the seat back assembly; the chair back component comprises a back support 1 and an upper back component 21, the back support 1 comprises a lifting frame 301 for arranging the upper back component 21 and a mounting groove 313 for accommodating the lifting frame 301, the lifting frame 301 can lift in the mounting groove 313 and drive the upper back component 21 to lift, the lifting frame 301 can be regarded as the sliding block, and the mounting groove 313 can be regarded as the sliding chute; the gear piece 302 is arranged in the mounting groove 313, and the gear engaging piece 303 is arranged on the lifting frame 301; when the upper back assembly 21 is lifted, the bayonet lock 305 of the gear member 303 is in bayonet fit with the bayonet lock 304 of the gear member 302 and the position is switched upwards between the bayonet lock 304, and the lifting of the upper back assembly 21 is lifted according to the gears; when the upper back assembly 21 reaches the highest position, that is, the detent 305 is lifted up by the lifting inclined plane 321 to switch to the locking state, the upper back assembly 21 can directly descend to the initial position; when the back assembly descends to the initial position, the detent 305 is switched back to the working state by the reset inclined plane 322, and the back assembly 21 can be raised again according to the gear, and the process is repeated.
Example 2: unlike embodiment 1, this embodiment discloses another application, and as shown in fig. 21, this embodiment discloses a seat comprising a seat back adjustment assembly, the first component being a seat back support 51; the second component is a back support 52 of the seat, configured to support the body of the back support 51; the back support 51 is arranged at the front side of the back bracket 52 and is configured to support the waist and the back of a human body; the upper part of the back support 52 is connected with the upper end of the back support 51, the lower end of the back support 51 moves relative to the back support 52 in an opening and closing way, and when the lower end of the back support 51 is opened forwards, a larger included angle is formed between the whole back support 51 and the back support 52; when the lower end of the back support piece 51 is closed backwards, a smaller included angle is formed between the whole back support piece 51 and the back bracket 52; the first component, namely the back support 51 is indirectly connected with the hanging part 303, a connecting rod 53 is also arranged between the back support 51 and the back bracket 52, one end of the connecting rod 53 is rotatably connected with the back support 51, the other end of the connecting rod 53 is connected with the hanging part 303, and the sliding groove and the gear part are arranged on the back bracket 52; when the back support 51 is opened forwards or closed backwards, the other end of the connecting rod 53 moves along the sliding groove; the configuration of the shift lever and the state switching means is described in embodiment 1.
Claims (12)
1. A chair back adjustment assembly for a chair, comprising: the chair back adjusting assembly comprises a first part and a second part which move relatively, the first part is connected with a hanging part, the second part is connected with a gear part, and the hanging part and the gear part are in sliding fit through a sliding block and a sliding groove so that the first part and the second part move relatively; the gear part is provided with a plurality of clamping grooves distributed along the sliding direction, the gear engaging part comprises elastic clamping pins which are in clamping fit with the clamping grooves, and when the gear part and the gear part slide relatively, the clamping pins are switched between the clamping grooves; the hanging stopper also comprises a state switching component which is configured to change the matching relationship between the bayonet lock and the clamping groove; the state switching component is provided with a working position and a locking position which can be switched mutually, when the state switching component is positioned at the working position, the bayonet lock is in a working state, and the bayonet lock is subjected to elastic force towards the bayonet lock; when the state switching assembly is located at the locking position, the clamping pin is in the locking state, the clamping pin is subjected to reverse elastic force, and the first component and the second component are in a relatively fixed state.
2. The seatback adjustment assembly for a seat according to claim 1, wherein: the state switching assembly comprises a working spring and a locking spring, the working spring and the locking spring act on the bayonet lock in opposite directions, and the working spring is arranged on one side of the bayonet lock, which is far away from the bayonet lock, and applies elastic force towards the bayonet lock to the bayonet lock; the locking spring is arranged on one side of the bayonet lock close to the bayonet lock and applies elastic force far away from the bayonet lock to the bayonet lock; when the bayonet lock is in a working state, the working spring and the locking spring act on the bayonet lock together, and the whole bayonet lock is subjected to elastic force towards the bayonet lock; when the bayonet lock is in a locking state, the locking spring acts on the bayonet lock to enable the bayonet lock to leave the bayonet lock.
3. The seatback adjustment assembly for a seat according to claim 2, wherein: the hanging stopper also comprises a base connected with the sliding block, two end faces of the base are respectively provided with a containing groove and an opening, the opening is arranged towards the clamping groove, and the containing groove is communicated with the opening; the bayonet lock is arranged in the opening in a sliding manner and does telescopic motion; the state switching assembly is arranged in the accommodating groove and acts on the clamping pin.
4. The seatback adjustment assembly for a seat according to claim 3, wherein: the state switching assembly also comprises a rotating seat and a jacking seat which are both arranged in the accommodating groove; the jacking seat is arranged on the clamping pin, and two ends of the locking spring respectively abut against the jacking seat and the bottom surface of the accommodating groove; the rotating seat is positioned on one side of the jacking seat, which is back to the clamping pin, and the working spring acts on the rotating seat and enables the rotating seat to be close to the jacking seat; the rotating seat and the jacking seat are matched through the inclined plane, so that the rotating seat can rotate after the jacking seat jacks the rotating seat.
5. The seatback adjustment assembly for a seat according to claim 4, wherein: the inner wall of the accommodating groove is provided with at least one guide groove and at least one locking groove, and the guide groove and the positioning groove are arranged adjacently along the circumferential direction; the jacking seat is provided with a guide block, the guide block is arranged in the guide groove, and the guide block slides in the guide groove along with the movement of the clamping pin; the rotating seat is provided with a state switching tooth, the state switching tooth is switched between the guide groove and the locking groove along with the rotation of the rotating seat, and the guide groove or the locking groove limits the rotation of the rotating seat when the state switching tooth is positioned in the guide groove or the locking groove; when the state switching teeth enter the guide grooves, the state switching assembly is in a working position, the elastic force of the working spring is applied to the jacking seat through the rotating seat and resists the elastic force of the locking spring to enable the whole clamping pin to be subjected to the elastic force towards the clamping groove; when the state switching teeth enter the locking groove, the state switching assembly is in the locking position, the elastic force of the working spring is applied to the locking groove, and the clamping pin leaves the clamping groove under the elastic force of the locking spring.
6. The seatback adjustment assembly for a seat according to claim 5, wherein: the jacking seat is also provided with jacking teeth, and when the jacking seat jacks up the rotating seat, the jacking teeth are in contact fit with the tooth surfaces of the state switching teeth; when the jacking teeth push the state switching teeth tips out of one of the guide groove or the locking groove, the rotating seat rotates to enable the state switching teeth to enter the other one of the guide groove or the locking groove.
7. The seatback adjustment assembly for a seat according to claim 6, wherein: the guide block radially protrudes out of the jacking seat and the jacking teeth; the jacking teeth axially protrude out of the jacking seat and the guide block.
8. The seatback adjustment assembly for a seat according to claim 5, wherein: the bottom of the guide groove is closer to the bottom surface of the accommodating groove than the locking groove.
9. The seatback adjustment assembly for a seat according to claim 4, wherein: the containing groove is closed through an end cover, and the end cover is in clamping fit with the containing groove through a clamping hole; two ends of the working spring are respectively abutted against the end cover and the rotating seat.
10. The seatback adjustment assembly for a seat according to claim 1, wherein: the gear part comprises a clamping tooth section, a jacking section and a resetting section, and the clamping grooves are distributed on the clamping tooth section; the jacking section is configured to enable the state switching assembly to be switched from the working position to the locking position, and when the clamping pin moves from the jacking section to the resetting section and passes through the clamping tooth section, the clamping pin is in a locking state and directly passes over the clamping tooth section; the reset section is configured to enable the state switching assembly to be switched from the locking position to the working position, the clamping pin is in the working state when the clamping pin moves from the reset section to the jacking section and passes through the clamping tooth section, and the clamping pin is in the switching position between the clamping slots.
11. A seat comprising a back adjustment assembly for a seat as claimed in any of claims 1 to 10, the first component being a back support member of the seat; the second component is a back bracket of the seat configured to support the body of the back support; the back support is arranged at the front side of the back bracket and is configured to support the waist and the back of a human body; the upper part of the back support is connected with the upper end of the back support, the lower end of the back support moves relative to the back support in an opening and closing manner, and when the lower end of the back support is opened forwards, a large included angle is formed between the whole back support and the back support; when the lower end of the back support piece is closed backwards, a smaller included angle is formed between the whole back support piece and the back support; a connecting rod is arranged between the back support piece and the back support, one end of the connecting rod is rotatably connected with the back support piece, the other end of the connecting rod is connected with the hanging stopper, and the sliding groove and the stopping stopper are arranged on the back support; when the back support piece is opened forwards or closed backwards, the other end of the connecting rod moves along the sliding groove.
12. The seat according to claim 11, wherein: the upper part of the back support is rotationally connected with the upper end of the back support through a ball head or a rotating shaft, and when the back support moves in an opening and closing mode, the other end of the connecting rod moves up and down along a sliding groove in the back support.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121367185 | 2021-06-18 | ||
| CN2021213671851 | 2021-06-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113662380A true CN113662380A (en) | 2021-11-19 |
| CN113662380B CN113662380B (en) | 2024-06-07 |
Family
ID=
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114590741A (en) * | 2022-03-07 | 2022-06-07 | 徐州永盛机电有限公司 | Auxiliary mounting device for rear axle of electric tricycle |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060097554A1 (en) * | 2004-11-08 | 2006-05-11 | Hatcher Stephen D | Chair with backrest depth adjustment mechanism |
| KR101014860B1 (en) * | 2010-07-01 | 2011-02-15 | 박점희 | Waist supporting chair |
| CN105102828A (en) * | 2013-01-30 | 2015-11-25 | 梅西埃-道蒂公司 | Locking mechanism for locking an actuator |
| CN205533648U (en) * | 2016-01-22 | 2016-08-31 | 上海三思电子工程有限公司 | Instrument installation device exempts from and LED display screen of using thereof |
| CN107061460A (en) * | 2017-04-12 | 2017-08-18 | 广东富华重工制造有限公司 | A kind of balladeur train lock pin panntographic system |
| KR101788642B1 (en) * | 2016-07-11 | 2017-10-20 | 김란순 | Up-down and revolution apparatus of a board back for chair |
| WO2018054249A1 (en) * | 2016-09-21 | 2018-03-29 | 珠海阳光儿童用品有限公司 | Support mount for child safety seat |
| CN108209278A (en) * | 2017-12-15 | 2018-06-29 | 东莞致诚办公家具有限公司 | Seat with Lumbar position adjustment function |
| DE102017110246A1 (en) * | 2017-05-11 | 2018-11-15 | Hettich Franke Gmbh & Co. Kg | Swivel fitting and furniture |
| CN210095245U (en) * | 2019-04-15 | 2020-02-21 | 广东乐美达集团有限公司 | Back adjusting device of multifunctional combined child dining chair |
| CN210727253U (en) * | 2019-06-10 | 2020-06-12 | 杭州顺钢模具材料有限公司 | Chair of convenient equipment of swift formula |
| CN210783618U (en) * | 2019-09-30 | 2020-06-19 | 深圳麦塔奇人体工学科技有限公司 | Double-back waist rest lifting device |
| CN111436786A (en) * | 2020-05-25 | 2020-07-24 | 浙江圣奥家具制造有限公司 | Seat depth adjusting mechanism and seat |
| CN212729298U (en) * | 2020-06-16 | 2021-03-19 | 近美健康科技(上海)有限公司 | Seat waist rest height adjusting device |
| CN212878511U (en) * | 2020-09-30 | 2021-04-06 | 浙江凯米熊科技有限公司 | Chair back lifting adjusting device and chair |
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060097554A1 (en) * | 2004-11-08 | 2006-05-11 | Hatcher Stephen D | Chair with backrest depth adjustment mechanism |
| KR101014860B1 (en) * | 2010-07-01 | 2011-02-15 | 박점희 | Waist supporting chair |
| CN105102828A (en) * | 2013-01-30 | 2015-11-25 | 梅西埃-道蒂公司 | Locking mechanism for locking an actuator |
| CN205533648U (en) * | 2016-01-22 | 2016-08-31 | 上海三思电子工程有限公司 | Instrument installation device exempts from and LED display screen of using thereof |
| KR101788642B1 (en) * | 2016-07-11 | 2017-10-20 | 김란순 | Up-down and revolution apparatus of a board back for chair |
| WO2018054249A1 (en) * | 2016-09-21 | 2018-03-29 | 珠海阳光儿童用品有限公司 | Support mount for child safety seat |
| CN107061460A (en) * | 2017-04-12 | 2017-08-18 | 广东富华重工制造有限公司 | A kind of balladeur train lock pin panntographic system |
| DE102017110246A1 (en) * | 2017-05-11 | 2018-11-15 | Hettich Franke Gmbh & Co. Kg | Swivel fitting and furniture |
| CN108209278A (en) * | 2017-12-15 | 2018-06-29 | 东莞致诚办公家具有限公司 | Seat with Lumbar position adjustment function |
| CN210095245U (en) * | 2019-04-15 | 2020-02-21 | 广东乐美达集团有限公司 | Back adjusting device of multifunctional combined child dining chair |
| CN210727253U (en) * | 2019-06-10 | 2020-06-12 | 杭州顺钢模具材料有限公司 | Chair of convenient equipment of swift formula |
| CN210783618U (en) * | 2019-09-30 | 2020-06-19 | 深圳麦塔奇人体工学科技有限公司 | Double-back waist rest lifting device |
| CN111436786A (en) * | 2020-05-25 | 2020-07-24 | 浙江圣奥家具制造有限公司 | Seat depth adjusting mechanism and seat |
| CN212729298U (en) * | 2020-06-16 | 2021-03-19 | 近美健康科技(上海)有限公司 | Seat waist rest height adjusting device |
| CN212878511U (en) * | 2020-09-30 | 2021-04-06 | 浙江凯米熊科技有限公司 | Chair back lifting adjusting device and chair |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114590741A (en) * | 2022-03-07 | 2022-06-07 | 徐州永盛机电有限公司 | Auxiliary mounting device for rear axle of electric tricycle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN216364371U (en) | 2022-04-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9603451B2 (en) | Height adjustment device in fixture, and armrest device for chair provided with height adjustment device | |
| JPH0633630Y2 (en) | Knob type switch operation device | |
| CN113662380A (en) | Chair back adjusting assembly for chair and chair | |
| CN113662380B (en) | Chair back adjusting assembly for chair and chair | |
| US20240065464A1 (en) | Shoe Cover Dispenser Device | |
| CN111845502B (en) | Roller type handrail stepless adjusting mechanism and automobile seat handrail | |
| CN115111260B (en) | Rotary supporting mechanism | |
| EP0796576B1 (en) | Low profile push-button mechanical remote control | |
| CN110290974A (en) | For adjusting the mechanical device of distance between two elements | |
| CN218355245U (en) | Coupling assembling and leisure chaise longue for leisure chaise longue | |
| DE19514539C2 (en) | Multi-function switch, in particular mirror adjustment switch for a motor vehicle | |
| CN212032924U (en) | Push-button switch | |
| CN220384689U (en) | Button switch structure and seat | |
| CN216545883U (en) | Chair and handrail mounting structure thereof | |
| CN218852290U (en) | Handrail | |
| CN215924271U (en) | Locking assembly and lifting platform with same | |
| CN219028983U (en) | Positioning support leg telescopic compasses | |
| CN215552703U (en) | Angle adjusting structure of safety seat basket base | |
| CN213047982U (en) | Linkage lock body for movable backrest of massage chair | |
| CN117770614A (en) | Armrest mechanism and chair using same | |
| EP2908695B1 (en) | Tension adjust device for a chair and chair | |
| CN218008944U (en) | Sliding adjusting module for seat | |
| CN214087491U (en) | Lifting locking mechanism and lifting device thereof | |
| CN219432417U (en) | Transmission mechanism of gear shifter | |
| CN215069851U (en) | Crank arm assembly of energy storage type operating mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant |