CN105686433A - Chair headrest adjustable by swinging - Google Patents

Chair headrest adjustable by swinging Download PDF

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Publication number
CN105686433A
CN105686433A CN201610245899.2A CN201610245899A CN105686433A CN 105686433 A CN105686433 A CN 105686433A CN 201610245899 A CN201610245899 A CN 201610245899A CN 105686433 A CN105686433 A CN 105686433A
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China
Prior art keywords
location
headrest
chair
drive part
swing seat
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Granted
Application number
CN201610245899.2A
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Chinese (zh)
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CN105686433B (en
Inventor
龚海常
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Wangjiang Leichuang Technology Co., Ltd
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龚海常
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Priority to CN201610245899.2A priority Critical patent/CN105686433B/en
Publication of CN105686433A publication Critical patent/CN105686433A/en
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Publication of CN105686433B publication Critical patent/CN105686433B/en
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    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C7/00Parts, details, or accessories of chairs or stools
    • A47C7/36Support for the head or the back
    • A47C7/38Support for the head or the back for the head

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  • Chair Legs, Seat Parts, And Backrests (AREA)

Abstract

The invention relates to a chair headrest adjustable by swinging. The chair headrest adjustable by swinging comprises a headrest body mounted on a chair and a swinging seat, one end of the swinging seat is rotatably connected to the chair, the headrest body is mounted at the other end of the swinging seat, and the swinging seat can drive the headrest body to be positioned or swing relative to the chair through a driving component in the swinging seat so as to achieve angle adjustment of the headrest body. The chair headrest adjustable by swinging has the advantages of simple and reasonable structure, convenience in swinging adjustment, large in swinging adjustment angle, capability of achieving a telescopic function, suitability for people different in figure to use and wide adjustment range.

Description

A kind of chair headrest of swingable adjustment
Technical field
The present invention relates to a kind of chair technology field, the chair headrest of especially a kind of swingable adjustment。
Background technology
At present, the headrest of chair, it is generally fixed form, or adjustment of may only upgrading, such as Chinese patent: ZL201310637445.6, ZL201310266379.6, ZL201320696925.5, it is limited in that headrest is followed the chair back all the time and moved, and the chair back is usual and the angle of medicated cushion is more than 90 degree, when taking the normal operation sitting posture directly sitting (human body waist separates) with the chair back, the head of human body cannot obtain the support of headrest to alleviate the stress of cervical vertebra, causes that the probability of cervical vertebra pain is greatly increased in the course of time。
Summary of the invention
It is an object of the invention to solve above-mentioned the deficiencies in the prior art, and provide a kind of rational in infrastructure, simple to operation, headrest can relatively actively chair back oscillation adjustment forward with near head, pendulum angle big and can multi-angle locking, be suitable under different heights and different sitting postures the chair headrest of the swingable adjustment used。
The technical solution adopted for the present invention to solve the technical problems is:
The chair headrest of swingable adjustment, including the headrest being arranged on chair, it is characterized in that, also include swing seat, swing seat one end is rotatably connected on chair, and the other end of swing seat is provided with headrest, by the driving assembly in swing seat, swing seat is made to drive rest the head on relative chair location or swing, it is achieved the angular adjustment of headrest。
Adopt the chair headrest of the swingable adjustment of this structure, by driving assembly, swing seat is made to realize location or swing, so that headrest is followed the relative chair location of swing seat or swings, it is finally reached the purpose that headrest multi-angle swings, the people adapting to different height and weight uses, and uses the people of different use habit to use。
The present invention can also adopt techniques below measure to solve:
Being provided with a fixture and two ratchets in described swing seat, fixture is provided with tooth, and each ratchet is meander-like, and two ratchets are rotatably connected in swing seat by two joint pins symmetrically formula;
Assembly is driven to include fixed frame, guiding framework and wobble drive part, fixed frame it is fixed with in swing seat, guiding framework is installed in fixed frame, the side of guiding framework offers limit opening, limit opening bilateral type is provided with two limited blocks, two ratchet one end extend in guide housing body along limit opening and coordinate with two limited blocks, the two ratchet other ends constitute cooperation with the tooth on fixture or separate, the opposite side of guiding framework is offseted by symmetrically arranged two first back-moving springs and fixed frame, and wobble drive part is connected to the opposite side of guiding framework。
The other end of each ratchet is extended with fixture block, and fixture block is provided with and constitutes, with the tooth on fixture, the bayonet socket coordinated。
As specific embodiment, its operation principle is, fixture is connected by connector and chair are fixing, by pulling wobble drive part, makes guiding framework along fixed frame toward pulling direction to move, due to two limited blocks and two ratchet one end fits, and each ratchet is meander-like, when two limited blocks are subjected to displacement, two limited blocks compress one end of two ratchets simultaneously, make two ratchets swing around joint pin simultaneously, make the two ratchet other ends originally be switched to released state with the tooth on fixture by mated condition;Now fixture loses constraint/restriction, and swing seat can rotate/swing by opposed fixed member, thus the headrest realized in swing seat swings, it is achieved angular adjustment;
After regulating, wobble drive part loses external force, guiding framework is played reset response by two first back-moving springs, two limited blocks in guiding framework are made again to be subjected to displacement, two limited blocks compress one end of two ratchets simultaneously, two ratchets are made simultaneously to swing when released state (swaying direction relatively realize contrary) around joint pin, the two ratchet other ends are made originally to be switched to mated condition with the tooth on fixture by released state, two ratchets and fixture locked location again, now swing seat opposed fixed member realizes location, thus realizing the location of headrest。
It is connected to the second back-moving spring between fixture block and swing seat inwall on each ratchet;The effect of the second back-moving spring is auxiliary two ratchet pawl resets (when ratchet and fixture are switched to mated condition by released state), makes structure compacter and reasonable。
Being extended with guiding extension block in guiding framework between two first back-moving springs, guiding extension block offers gathering sill, the swing seat in corresponding gathering sill is fixed with lead, wobble drive part is connected to outside guiding extension block;Gathering sill coordinates with lead, coordinates the spacing guide effect of guiding framework both sides and fixed frame both sides, when making guiding framework under tension or lose pulling force reset, it is possible to achieve straight-line displacement, makes structure compacter, and correcting rate is higher。
Described wobble drive part is stay cord or pull bar or stretching structure, and swing seat is connected to fixing pipe, and wobble drive part is arranged in fixing pipe。
It is arranged with telescoping tube in described fixing pipe, fixing inside pipe wall is fixed with the tooth bar axially extended, tooth bar constitutes between adjacent two teeth locating slot, telescoping tube one end is extended fixing pipe and is externally connected with headrest, telescoping tube in fixing pipe is elasticly connected with location-plate, driving location-plate by telescopic drive part, make location-plate constitute location fit or disconnected from each other with locating slot, correspondence makes telescoping tube be relatively fixed pipe and realizes location or flexible;Assume that when location-plate and locating slot are in the state of location fit, (telescoping tube is relatively fixed pipe location, and telescoping tube cannot past be fixed, and pipe is interior retracts), location-plate is driven now by telescopic drive part, location-plate is made to overcome elastic force, location-plate is made to change, location-plate and locating slot is made to be switched to state disconnected from each other by original location fit state, namely location-plate is departing from locating slot, telescoping tube is made freely to stretch, realize telescopic adjustment function, after regulating stroke, telescopic drive part no longer applies any power, after location-plate loses the driving of telescopic drive part, due to elastic reset, location-plate is made again to coordinate with locating slot, again realize telescoping tube and be relatively fixed pipe location, it regulates simple, convenient。
Described fixing inside pipe wall is fixed with two tooth bars axially extended, and constitutes locating slot between adjacent two teeth on each tooth bar, and the telescoping tube in fixing pipe is elasticly connected with two location-plates;As more particular embodiment, processing two tooth bars in advance, tooth bar is fixed on by securing member the inwall of fixing pipe, constitute locating slot between adjacent two teeth on each tooth bar, it is rational in infrastructure。
Described tooth bar and fixing inside pipe wall are integral type;As embodiment, when tooth bar is integral type structure with fixing pipe, adding man-hour, need fixing pipe is divided into many equal portions, such as two equal portions, process tooth bar at interior wall integral on each equal portions, then are welded together by two equal portions or reinforce together by other forms, constitute entirety, equally possible reach result of use。
Telescoping tube in described fixing pipe is connected to sliding sleeve, the outer wall of sliding sleeve is extended with multiple guiding rib, fixing inside pipe wall is provided with the multiple gathering sills coordinated with multiple guiding ribs, the end face of the sliding sleeve other end is extended with two connecting plates of symmetry, two connecting plates offer two slide openings of symmetry respectively, one slide-bar two ends are located on two slide openings respectively, slide-bar is elasticly connected with two location-plates by elastic component, the end face of the sliding sleeve other end constitutes the spacing end face offseted with location-plate, telescopic drive part is connected with slide-bar, drive slide-bar along two slide opening slidings by telescopic drive part, location-plate and locating slot is made to be switched to disconnected from each other by location fit, location-plate is made to receive along spacing end face toward sliding sleeve, make telescoping tube be relatively fixed pipe and realize flexible;
Described spacing end face is extended with limiting plate along sliding sleeve, and limiting plate is provided with spacing inclined-plane;
Being connected to barb on described slide-bar, telescopic drive part is connected with barb by suspension member, makes telescopic drive part constitute with slide-bar and is connected。
As more particular embodiment;Being formed guidance set by the gathering sill of multiple guiding ribs of sliding sleeve outer wall and fixing inside pipe wall, guiding rib and gathering sill coordinate, and make to slide in fixing pipe and realize axially directed slip, owing to telescoping tube is connected with sliding sleeve, so sliding sleeve slip, namely represent telescoping tube flexible;Its operation principle is: owing to location-plate is socketed on slide-bar by sleeve, and location-plate constitutes resilient engagement by elastic component with slide-bar, when location-plate is applied external force by telescopic drive part, slide-bar slides along slide opening, location-plate is followed and is subjected to displacement, location-plate overcomes the elastic force of elastic component to receive along spacing end face toward sliding sleeve, location-plate and locating slot is made to be switched to disconnected from each other by script location fit, now telescoping tube can be relatively fixed the free telescopic adjustment of pipe, after adjustment, telescopic drive part no longer applies external force, location-plate is applied the elasticity resetted by elastic component, location-plate is made to recover to initial condition, offset with spacing end face, location-plate coordinates with locating slot again, telescoping tube is made to be relatively fixed pipe location。
Limiting plate facilitates location-plate to overcome in the process that the elastic force of elastic component is received along spacing end face toward sliding sleeve, location-plate is played the effect of guiding, and spacing inclined-plane makes telescopic drive part apply only small power, location-plate just can be made to change, and depart from locating slot, the upset storage along spacing inclined-plane toward sliding sleeve。
The invention has the beneficial effects as follows:
The chair headrest of the swingable adjustment of the present invention, it is simple and reasonable for structure, oscillation adjustment is convenient, oscillation adjustment angle is big and can multi-angle locking, it is suitable for different building shape and the use of difference sitting posture, makes people's headrest when straight seat relatively actively chair back oscillation adjustment forward with close head, human body head can be made effectively to be supported, thus effectively alleviating the stress of cervical vertebra, it is substantially reduced the sickness rate that cervical vertebra is ailing。
Accompanying drawing explanation
Fig. 1 is that the present invention shows that headrest swings the structural representation of different angles。
Fig. 2 is the structural representation of swing seat in the present invention。
Fig. 3 is the structural representation of first embodiment of the invention。
Fig. 4 is the structural representation of first embodiment of the invention。
Fig. 5 is the structural representation of first embodiment of the invention。
Fig. 6 fixes pipe to adopt the schematic diagram of split-type structural in first embodiment of the invention。
Fig. 7 is the structural representation of first embodiment of the invention。
Fig. 8 is the structural representation of first embodiment of the invention。
Fig. 9 is the structural representation of first embodiment of the invention。
Figure 10 is the structural representation that the present invention shows that headrest is flexible。
Figure 11 is the structural representation of second embodiment of the invention。
Figure 12 is the structural representation of third embodiment of the invention。
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further described。
First embodiment: as shown in Figures 1 to 10, the chair headrest of swingable adjustment, including the headrest 2 being arranged on chair 1, it is characterized in that, also including swing seat 3, swing seat 3 one end is rotatably connected on chair 1, the other end of swing seat 3 is provided with headrest 2, by the driving assembly 5 in swing seat 3, swing seat 3 is made to drive headrest 2 relative chairs 1 to position or swing, it is achieved the angular adjustment of headrest 2。
Adopt the chair headrest of the swingable adjustment of this structure, by driving assembly 5, swing seat 3 is made to realize location or swing, so that headrest 2 is followed the relative chair location of swing seat 3 or swings, it is finally reached the purpose that headrest 2 multi-angle swings, the people adapting to different height and weight uses, and uses the people of different use habit to use。
As the present embodiment more particular embodiment:
Being provided with a fixture 6 and two ratchets 7 in described swing seat 3, fixture 6 is provided with tooth 601, and each ratchet 7 is meander-like, and two ratchets 7 are rotatably connected in swing seat 3 by two joint pin 8 symmetrically formulas;
Assembly 5 is driven to include fixed frame 501, guiding framework 502 and wobble drive part 503, fixed frame 501 it is fixed with in swing seat 3, guiding framework 502 is installed in fixed frame 501, the side of guiding framework 502 offers limit opening 502-1, limit opening 502-1 bilateral type is provided with two limited block 502-2, two ratchet 7 one end 701 extend in guiding framework 502 along limit opening 502-1 and coordinate with two limited block 502-2, two ratchet 7 other ends 702 constitute cooperation with the tooth 601 on fixture 6 or separate, the opposite side of guiding framework 502 is offseted with fixed frame 501 by symmetrically arranged two first back-moving springs 9, and wobble drive part 503 is connected to the opposite side of guiding framework 502。
The other end 702 of each ratchet 7 is extended with fixture block 703, and fixture block 703 is provided with and constitutes, with the tooth 601 on fixture 6, the bayonet socket 704 coordinated。
As specific embodiment, its operation principle is, fixture 6 is connected by connector 602 is fixing with chair 1, by pulling wobble drive part 503, make guiding framework 502 along fixed frame 501 toward pulling direction to move, owing to two limited block 502-2 and two ratchet 7 one end 701 coordinate, and each ratchet 7 is meander-like, when two limited block 502-2 are subjected to displacement, two limited block 502-2 compress one end 701 of two ratchets 7 simultaneously, make two ratchets 7 swing around joint pin 8 simultaneously, two ratchet 7 other ends 702 are made originally to be switched to released state with the tooth 601 on fixture 6 by mated condition;Now fixture 6 loses constraint/restriction, and swing seat 3 can rotate/swing by opposed fixed member 6, thus the headrest 2 realized in swing seat 3 swings, it is achieved angular adjustment;
After regulating, wobble drive part 503 loses external force, guiding framework 502 is played reset response by two first back-moving springs 9, two limited block 502-2 in guiding framework 502 are made again to be subjected to displacement, two limited block 502-2 compress one end 701 of two ratchets 7 simultaneously, two ratchets 7 are made simultaneously to swing when released state (swaying direction relatively realize contrary) around joint pin 8, two ratchet 7 other ends 702 are made originally to be switched to mated condition with the tooth 601 on fixture 6 by released state, two ratchets 7 and fixture 6 locked location again, now swing seat 3 opposed fixed member 6 realizes location, thus realizing the location of headrest 2。
It is connected to the second back-moving spring 10 between fixture block 70 and swing seat 3 inwall on each ratchet 7;The effect of the second back-moving spring 10 is that auxiliary two ratchets 7 reset (when ratchet 7 and fixture 6 are switched to mated condition by released state), makes structure compacter and reasonable。
Guiding framework 502 between two first back-moving springs 9 is extended with guiding extension block 502-3, guiding extension block 502-3 offers gathering sill 502-4, being fixed with lead 302 in swing seat 3 in corresponding gathering sill 502-4, wobble drive part 503 is connected to outside guiding extension block 502-3;Gathering sill 502-4 coordinates with lead 302, coordinate the spacing guide effect of guiding framework 502 both sides and fixed frame 501 both sides, when making guiding framework 502 under tension or lose pulling force reset, it is possible to achieve straight-line displacement, making structure compacter, correcting rate is higher。
Described wobble drive part 503 is stay cord or pull bar or stretching structure, and swing seat 3 is connected to fixing pipe 303, and wobble drive part 503 is arranged in fixing pipe 303。
Described fixing is arranged with telescoping tube 11 in 303 pipes, fixing pipe 303 inwall 303-1 is fixed with the tooth bar 12 axially extended, tooth bar 12 constitutes between adjacent two teeth 1201 locating slot 1202, telescoping tube 11 one end is extended fixing pipe 303 and is externally connected with headrest 2, telescoping tube 11 in fixing pipe 303 is elasticly connected with location-plate 13, location-plate 13 is driven by telescopic drive part 14, making location-plate 13 and locating slot 1202 constitute location fit or disconnected from each other, correspondence makes telescoping tube 11 be relatively fixed pipe 303 and realizes location or flexible;Assume that when location-plate 13 and locating slot 1202 are in the state of location fit, (telescoping tube 11 is relatively fixed pipe 303 and positions, and telescoping tube 11 cannot past be fixed, and pipe 303 is interior retracts), location-plate 13 is driven now by telescopic drive part 14, location-plate 13 is made to overcome elastic force, location-plate 13 is made to change, location-plate 13 and locating slot 1202 is made to be switched to state disconnected from each other by original location fit state, namely location-plate 13 is departing from locating slot 1202, telescoping tube 11 is made freely to stretch, realize telescopic adjustment function, after regulating stroke, telescopic drive part 14 no longer applies any power, after location-plate 13 loses telescopic drive part 14 driving, due to elastic reset, location-plate 13 is made again to coordinate with locating slot 1202, again realize telescoping tube 11 to be relatively fixed pipe 303 and position, it regulates simple, convenient。
Described fixing pipe 303 inwall 303-1 is fixed with two tooth bars 12 axially extended, and constitutes locating slot 1202 between adjacent two teeth 1201 on each tooth bar 12, and the telescoping tube 303 in fixing pipe 303 is elasticly connected with two location-plates 13;As more particular embodiment, processing two tooth bars 12 in advance, tooth bar 12 is fixed on by securing member 15 the inwall 303-1 of fixing pipe 303, as it is shown in figure 5, constitute locating slot 1202 between adjacent two teeth 1201 on each tooth bar 12, it is rational in infrastructure。
Described tooth bar 12 is integral type with fixing pipe 303 inwall 303-1, as shown in Figure 4;As embodiment, when tooth bar 12 and fixing pipe 303 are integral type structure, adding man-hour, need fixing pipe 303 is divided into many equal portions, for instance two equal portions, as shown in Figure 6, tooth bar 12 is processed by each equal portions in inwall 303-1 integral type, again two equal portions welded together or reinforce together by other forms, constituting entirety, equally possible reach result of use。
Telescoping tube 11 in described fixing pipe 303 is connected to sliding sleeve 16, the outer wall of sliding sleeve 16 is extended with multiple guiding rib 1601, fixing pipe 303 inwall 303-1 is provided with the multiple gathering sill 303-2 coordinated with multiple guiding ribs 1601, the end face 1604 of sliding sleeve 16 other end is extended with two connecting plates 1602 of symmetry, two connecting plates 1602 offer two slide openings 1603 of symmetry respectively, one slide-bar 17 two ends are located on two slide openings 1603 respectively, slide-bar 17 is elasticly connected with two location-plates 13 by elastic component 18, the end face 1604 of sliding sleeve 16 other end constitutes the spacing end face offseted with location-plate 13, telescopic drive part 14 is connected with slide-bar 17, drive slide-bar 17 along two slide opening 1603 slidings by telescopic drive part 14, location-plate 13 and locating slot 1202 is made to be switched to disconnected from each other by location fit, location-plate 13 is made to receive along spacing end face toward sliding sleeve 16, make telescoping tube 11 be relatively fixed pipe 303 and realize flexible;
Described spacing end face is extended with limiting plate 1605 along sliding sleeve 16, and limiting plate 1605 is provided with spacing inclined-plane 1605-1;
Being connected to barb 1701 on described slide-bar 17, telescopic drive part 14 is connected with barb 1701 by suspension member 1401, makes telescopic drive part 14 constitute with slide-bar 17 and is connected。
As more particular embodiment;Guidance set is formed by the gathering sill 303-2 of multiple guiding ribs 1601 of sliding sleeve 16 outer wall and fixing pipe 303 inwall 303-1, guiding rib 1601 and gathering sill 303-2 coordinate, sliding sleeve 16 is made to realize axially directed slip in fixing pipe 303, owing to telescoping tube 11 is connected with sliding sleeve 16, so sliding sleeve 16 slides, namely represent telescoping tube 11 and stretch;Its operation principle is: owing to location-plate 13 is socketed on slide-bar 17 by sleeve 1301, and location-plate 13 constitutes resilient engagement by elastic component 18 and slide-bar 17, when location-plate 13 is applied external force by telescopic drive part 14, slide-bar 17 slides along slide opening, location-plate 13 is followed and is subjected to displacement, location-plate 13 overcomes the elastic force of elastic component 18 to receive along spacing end face toward sliding sleeve 16, location-plate 13 and locating slot 1202 is made to be switched to disconnected from each other by script location fit, now telescoping tube 11 can be relatively fixed the free telescopic adjustment of pipe 303, after adjustment, telescopic drive part 14 no longer applies external force, location-plate 13 is applied the elasticity resetted by elastic component 18, location-plate 13 is made to recover to initial condition, offset with spacing end face, location-plate 13 coordinates with locating slot 1202 again, make telescoping tube 11 be relatively fixed pipe 303 to position。
Limiting plate 1605 facilitates location-plate 13 to overcome the elastic force of elastic component along spacing end face toward the process of storage in sliding sleeve 16, location-plate 13 is played the effect of guiding, and spacing inclined-plane 1605-1 makes telescopic drive part 14 apply only small power, location-plate 13 just can be made to change, and depart from locating slot 1202, receive along spacing inclined-plane 1605-1 toward upset in sliding sleeve 16。
Second embodiment: as shown in figure 11, the present embodiment is similar to first embodiment, it is different in that: described fixture 6 is irregular part, this part is provided with tooth 601, and two ratchets 7 are set, two ratchet 7 one end 701 are respectively equipped with two connecting portions 19, two connecting portions 19 are rotatably connected in swing seat 3 by two joint pin 8 symmetrically formulas, two ratchet 7 other ends 702 coordinate with tooth 601 respectively or separate, and two connecting portions 10 are adjacent setting, two connecting portions 19 are respectively equipped with intermeshing connection tooth 19-1, one of them ratchet 7 is driven by wobble drive part 503 and connects, when actuator is to when wherein a ratchet 7 applies external force, this ratchet 7 compresses the second back-moving spring 10, two ratchet 7 other ends 702 depart from the tooth 601 of fixture 6 simultaneously, ratchet 7 rotates around joint pin 8, the connecting portion 19 making this ratchet 7 rotates, owing to two connecting portions 19 intermesh, make another ratchet 7(ratchet not being connected with wobble drive part 503) swing toward rightabout, second back-moving spring 10 of the corresponding side of compression, this ratchet 7 is made to depart from the tooth 601 of fixture 6 equally, make swing seat 3 can opposed fixed member 6 freely rotatable, the principle of location is identical with above-mentioned principle, as long as wobble drive part 503 is cancelled, and ratchet 7 is applied external force, two ratchets 7 can be made to engage with tooth 601 simultaneously, swing seat 3 opposed fixed member 6 is made to realize location。
The present embodiment wobble drive part 503 is directly connected with a wherein ratchet 7, and swing seat 3 also sets up the regulating wheel 20 being connected with wobble drive part 503, and regulating wheel 20 plays the effect of guiding and tensioning。
3rd embodiment: as shown in figure 12, the present embodiment and first and second embodiment are similar, it is different in that: described fixing pipe 303 is connected to the side of swing seat 3, different from the link position of first and second embodiment, and the stretching structure such as location-plate, tooth bar is similarly disposed in fixing pipe 303, telescoping tube 11 is same to be connected with headrest 2。
The present invention has wide range of applications, simple in construction, easy for installation, headrest can relatively actively chair back oscillation adjustment forward with near head, pendulum angle is big and can multi-angle locking, it is suitable under different height and different sitting posture the chair headrest of the swingable adjustment used, coordinating Telescopic, adjusting angle is big。
Particular embodiments described above, is only preferred embodiment of the present invention, the equivalent arrangements such as done according to the present patent application the scope of the claims, all should be the technology of the present invention and is contained。

Claims (10)

1. the chair headrest of swingable adjustment, including the headrest being arranged on chair, it is characterized in that, also include swing seat, swing seat one end is rotatably connected on chair, and the other end of swing seat is provided with headrest, by the driving assembly in swing seat, swing seat is made to drive rest the head on relative chair location or swing, it is achieved the angular adjustment of headrest。
2. the chair headrest of swingable adjustment according to claim 1, it is characterized in that, being provided with a fixture and two ratchets in described swing seat, fixture is provided with tooth, each ratchet is meander-like, and two ratchets are rotatably connected in swing seat by two joint pins symmetrically formula;
Assembly is driven to include fixed frame, guiding framework and wobble drive part, fixed frame it is fixed with in swing seat, guiding framework is installed in fixed frame, the side of guiding framework offers limit opening, limit opening bilateral type is provided with two limited blocks, two ratchet one end extend in guide housing body along limit opening and coordinate with two limited blocks, the two ratchet other ends constitute cooperation with the tooth on fixture or separate, the opposite side of guiding framework is offseted by symmetrically arranged two first back-moving springs and fixed frame, and wobble drive part is connected to the opposite side of guiding framework。
3. the chair headrest of swingable adjustment according to claim 2, is characterized in that, the other end of each ratchet is extended with fixture block, and fixture block is provided with and constitutes, with the tooth on fixture, the bayonet socket coordinated。
4. the chair headrest of swingable adjustment according to claim 3, is characterized in that, be connected to the second back-moving spring between fixture block and the swing seat inwall on each ratchet。
5. the chair headrest of swingable adjustment according to claim 2, it is characterized in that, guiding framework between two first back-moving springs is extended with guiding extension block, guiding extension block offers gathering sill, being fixed with lead in swing seat in corresponding gathering sill, wobble drive part is connected to outside guiding extension block。
6. the chair headrest of swingable adjustment according to any one of claim 2 to 5, is characterized in that, described wobble drive part is stay cord or pull bar or stretching structure, and swing seat is connected to fixing pipe, and wobble drive part is arranged in fixing pipe。
7. the chair headrest of swingable adjustment according to claim 6, it is characterized in that, it is arranged with telescoping tube in described fixing pipe, fixing inside pipe wall is fixed with the tooth bar axially extended, tooth bar constitutes between adjacent two teeth locating slot, telescoping tube one end is extended fixing pipe and is externally connected with headrest, telescoping tube in fixing pipe is elasticly connected with location-plate, location-plate is driven by telescopic drive part, making location-plate constitute location fit or disconnected from each other with locating slot, correspondence makes telescoping tube be relatively fixed pipe and realizes location or flexible。
8. the chair headrest of swingable adjustment according to claim 7, it is characterized in that, described fixing inside pipe wall is fixed with two tooth bars axially extended, and constitutes locating slot between adjacent two teeth on each tooth bar, and the telescoping tube in fixing pipe is elasticly connected with two location-plates。
9. the chair headrest of swingable adjustment according to claim 7 or 8, is characterized in that, described tooth bar and fixing inside pipe wall are integral type。
10. the chair headrest of swingable adjustment according to claim 9, it is characterized in that, telescoping tube in described fixing pipe is connected to sliding sleeve, the outer wall of sliding sleeve is extended with multiple guiding rib, fixing inside pipe wall is provided with the multiple gathering sills coordinated with multiple guiding ribs, the end face of the sliding sleeve other end is extended with two connecting plates of symmetry, two connecting plates offer two slide openings of symmetry respectively, one slide-bar two ends are located on two slide openings respectively, slide-bar is elasticly connected with two location-plates by elastic component, the end face of the sliding sleeve other end constitutes the spacing end face offseted with location-plate, telescopic drive part is connected with slide-bar, drive slide-bar along two slide opening slidings by telescopic drive part, location-plate and locating slot is made to be switched to disconnected from each other by location fit, location-plate is made to receive along spacing end face toward sliding sleeve, make telescoping tube be relatively fixed pipe and realize flexible;
Described spacing end face is extended with limiting plate along sliding sleeve, and limiting plate is provided with spacing inclined-plane;
Being connected to barb on described slide-bar, telescopic drive part is connected with barb by suspension member, makes telescopic drive part constitute with slide-bar and is connected。
CN201610245899.2A 2016-04-20 2016-04-20 A kind of chair headrest of swingable adjusting Active CN105686433B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112155362A (en) * 2020-09-17 2021-01-01 海宁市德利家具有限公司 Sofa with adjustable headrest

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CN205625296U (en) * 2016-04-20 2016-10-12 龚海常 Can swing chair headrest of regulation

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* Cited by examiner, † Cited by third party
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CN112155362A (en) * 2020-09-17 2021-01-01 海宁市德利家具有限公司 Sofa with adjustable headrest
CN112155362B (en) * 2020-09-17 2022-03-15 海宁市德利家具有限公司 Sofa with adjustable headrest

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