CN111227549B - Chair armrest and chair - Google Patents
Chair armrest and chair Download PDFInfo
- Publication number
- CN111227549B CN111227549B CN202010082308.0A CN202010082308A CN111227549B CN 111227549 B CN111227549 B CN 111227549B CN 202010082308 A CN202010082308 A CN 202010082308A CN 111227549 B CN111227549 B CN 111227549B
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- Prior art keywords
- guide groove
- armrest
- sliding
- guide
- seat
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- 238000010521 absorption reaction Methods 0.000 claims abstract description 28
- 210000001503 joint Anatomy 0.000 claims abstract description 9
- 238000003825 pressing Methods 0.000 claims description 28
- 230000002745 absorbent Effects 0.000 claims description 15
- 239000002250 absorbent Substances 0.000 claims description 15
- 239000006249 magnetic particle Substances 0.000 claims description 15
- 230000000903 blocking effect Effects 0.000 claims description 14
- 230000007246 mechanism Effects 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000001179 sorption measurement Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 210000005056 cell body Anatomy 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
Classifications
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- 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
- A47C7/54—Supports for the arms
- A47C7/546—Supports for the arms of detachable type
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C31/00—Details or accessories for chairs, beds, or the like, not provided for in other groups of this subclass, e.g. upholstery fasteners, mattress protectors, stretching devices for mattress nets
-
- 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
-
- 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
- A47C7/54—Supports for the arms
- A47C7/541—Supports for the arms of adjustable 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
- A47C7/62—Accessories for chairs
- A47C7/72—Adaptations for incorporating lamps, radio sets, bars, telephones, ventilation, heating or cooling arrangements or the like
- A47C7/725—Adaptations for incorporating lamps, radio sets, bars, telephones, ventilation, heating or cooling arrangements or the like for illumination, e.g. lamps
-
- 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
- A47C7/62—Accessories for chairs
- A47C7/72—Adaptations for incorporating lamps, radio sets, bars, telephones, ventilation, heating or cooling arrangements or the like
- A47C7/727—Adaptations for incorporating lamps, radio sets, bars, telephones, ventilation, heating or cooling arrangements or the like with speakers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/10—Parts, details or accessories
- A61G5/12—Rests specially adapted therefor, e.g. for the head or the feet
- A61G5/125—Rests specially adapted therefor, e.g. for the head or the feet for arms
Abstract
The invention discloses a seat armrest and a seat, wherein the seat armrest comprises an armrest support and an armrest cross rod, a first absorption part and a first conductive part are arranged on the armrest support, the first absorption part is connected with the first conductive part, a second absorption part and a second conductive part are arranged on the armrest cross rod, the second absorption part is connected with the second conductive part, and when the first absorption part is absorbed by the second absorption part, the first conductive part is in butt joint with the second conductive part. The invention can realize convenient disassembly or replacement of the seat armrest, and has very convenient processing, assembly, transportation and use of the seat armrest and stronger adaptability.
Description
Technical Field
The invention belongs to the fields of furniture and medical instruments, and particularly relates to a seat armrest and a seat.
Background
Armrests are generally mounted on both sides of the seat, and the basic function of the armrests is to support the hands so as to improve the comfort of the user.
Along with the diversification of the functions of the seats, a plurality of seats with electric functions or entertainment functions are present, operation control is needed on the armrests, the armrests of the existing seats are of fixed structures, and the production, transportation and use of the existing seats are limited by the inherent structural design and cannot be effectively adapted to the complex requirements of the seats in the production, assembly, transportation and use processes.
Disclosure of Invention
The invention aims to provide a seat armrest and a seat, which can realize convenient disassembly or replacement of the seat armrest, and are very convenient to process, assemble, transport and use and higher in adaptability.
The invention provides a seat armrest, which comprises an armrest support and an armrest cross rod, wherein a first absorption part and a first conductive part are arranged on the armrest support, the first absorption part is connected with the first conductive part, a second absorption part and a second conductive part are arranged on the armrest cross rod, the second absorption part is connected with the second conductive part, and when the first absorption part is absorbed by the second absorption part, the first conductive part is in butt joint with the second conductive part.
Further, a first sliding part is arranged on the handrail support, a second sliding part and a third sliding part are arranged on the handrail cross rod, the first sliding part and the second sliding part are respectively matched with the third sliding part, and the first conductive part and the first absorption part are arranged on the first sliding part; the second conductive part and the second absorption part are arranged on the second sliding part.
Further, a stroke lock mechanism for restricting sliding between the first sliding portion and the third sliding portion is further included.
Further, be equipped with first guide groove body on the handrail support, this first guide groove body is first sliding part, the handrail horizontal pole includes handrail body and second guide groove body, is equipped with two at least guide slots on the handrail body, this second guide groove body is second sliding part, the guide slot is the third sliding part, has the guide ear on the second guide groove body, is equipped with the slip protruding on first guide groove body, guide ear, slip protruding card respectively go into the guide slot in and with the guide slot cooperation.
Further, the guide groove comprises a first guide groove, a second guide groove and a third guide groove, the upper edges of the first guide groove and the second guide groove are flush, and the lower edge of the first guide groove is lower than the lower edge of the second guide groove and forms a step shape; the first guide groove, the second guide groove and the third guide groove are parallel; the guide lug is matched with the first guide groove and the second guide groove, and the sliding protrusion is matched with the third guide groove.
Further, the lower part of the handrail body comprises a sliding box, the sliding box is formed by combining and installing two half box bodies, and the inner wall of each half box body is provided with a first guide groove, a second guide groove and a third guide groove.
Further, the number of the third guide grooves is at least two, the end parts of the third guide grooves are provided with clamping inlet parts, the sliding protrusions are arranged at the two ends of the first guide groove body, and the sliding protrusions are matched with the clamping inlet parts.
Further, a lock is provided on the slide case near the card inlet.
Further, a pressing piece is arranged on the armrest body, a blocking piece is arranged on the second guide groove body, a pressure spring is arranged between the second guide groove body and the blocking piece, and a sliding-in inclined plane is arranged on one side, close to the blocking piece, of the pressing piece.
Further, be equipped with first pinhole, second pinhole on the second guide cell body, wherein the second pinhole is the strip hole, and the one end that keeps off the piece is equipped with first fixed pin, and the other end is equipped with the second fixed pin, and first fixed pin is blocked respectively in the first pinhole on the second guide cell body, and in the second pinhole on the second guide cell body was blocked respectively to the second fixed pin, this fender piece was located the below of butt piece.
Further, the travel locking mechanism is a positioning part arranged on the first guide groove body and a locking part arranged on the armrest body, and the locking part is matched with the positioning part.
Further, the positioning part is a positioning hole, and each positioning hole is arranged along the longitudinal direction of the first guiding groove body.
Further, the handrail also comprises a lock rod and a reset piece for resetting the lock rod, wherein the lock rod is hinged with the handrail body, and the locking part is a bulge arranged in the middle of the lock rod.
Further, a rotating protrusion is arranged on the armrest body, and the lock rod is hinged with the armrest body through the rotating protrusion.
Further, the positioning parts are arranged on two sides of the first guiding groove body, the locking bars are arranged on two sides of the handrail body, and the reset piece is arranged between the two locking bars.
Further, the second guiding groove body is arranged in the first guiding groove body, a yielding groove is formed in the side portion of the second guiding groove body, and the locking portion corresponds to the positioning portion after penetrating through the yielding groove.
Further, the first absorbing member and the first conductive portion are disposed at the inner side of the bottom of the first guiding groove, and the second absorbing member and the second conductive portion are disposed at the outer side of the bottom of the second guiding groove.
Further, the first absorbing member and the second absorbing member are both elongated, the first absorbing member and the second absorbing member are both located in the first guiding groove, the first absorbing member is fixed to the first guiding groove, and the second absorbing member is disposed on the second guiding groove and is in sliding fit with the third sliding portion.
Further, the first absorbing member and the second absorbing member are respectively provided with magnetic particles near two ends, and the magnetic particles of the first absorbing member and the magnetic particles of the second absorbing member are absorbed.
Further, in the magnetic particles of the first absorption member and the second absorption member, one of the magnetic particles is protruded relative to the installation surface of the first absorption member and the second absorption member, and the other magnetic particle is recessed relative to the installation surface of the second absorption member.
The invention also provides a seat, which comprises a seat main body and the seat armrests, wherein the seat armrests are positioned on at least one side of the seat main body.
Further, the seat armrest is located at the left side and the right side of the seat main body, a first control part is arranged on the left armrest cross bar, a second control part is arranged on the right side of the armrest cross bar, and the first control part and the second control part are respectively connected with the second conductive parts in a guiding way.
The invention also provides another seat, which comprises a seat main body and the seat armrests, wherein the seat armrests are positioned on the left side and the right side of the seat main body; the left handrail cross bar is provided with a first control part, the right handrail cross bar is provided with a second control part, and the first control part and the second control part are respectively connected with the second conductive parts in a conducting way; the specifications of the first guide groove body, the second guide groove body and the sliding box on the left side are the same as those of the first guide groove body, the second guide groove body and the sliding box on the right side.
The invention has the following advantages:
1. the seat armrest comprises an armrest support and an armrest cross rod, wherein the armrest support and the armrest cross rod are respectively provided with a first conductive part and a second conductive part, and control signals input by a user can be transmitted to a main control part of the seat through the first conductive part and the second conductive part for controlling the seat. The first conductive part and the second conductive part are connected through the adsorption of the first adsorption piece and the second adsorption piece, namely: when the first absorbing part is absorbed by the second absorbing part, the first conductive part is connected with the second conductive part in a conductive way, and when the first absorbing part is separated from the second absorbing part, the first conductive part is disconnected from the second conductive part. The magnetic attraction mode is adopted, so that the electric connection between the first conductive part and the second conductive part can be realized, the transmission of control signals is realized, the complexity of a part connecting circuit between the handrail support and the handrail cross rod is reduced, the connection or disconnection of the conductive part between the handrail support and the handrail cross rod can be realized conveniently, and then the assembly and the disassembly between the handrail support and the handrail cross rod can be realized conveniently. The assembly between the handrail support and the handrail cross rod can be conveniently disassembled and packaged in the transportation process, so that the occupation of space is reduced; in the use process of consumers, the handrail cross bar (and the control part on the handrail cross bar) can be exchanged left and right according to personal preference of the consumers; compared with the existing seat armrest, the seat armrest has stronger adaptability.
2. In the invention, a user can adjust the position of the handrail cross bar relative to the handrail bracket according to the self requirement, and at the moment, the first sliding part is matched with the third sliding part. Because the relative position of the first sliding part and the third sliding part can change, the electric control part on the handrail cross rod is in butt joint with the circuit of the electric control part on the handrail support, the butt joint is realized through the adsorption of the first adsorption part and the second adsorption part, the trouble caused by the butt joint of the manual plug is reduced, the assembly is simple, and the manufacturability is good.
3. The handrail cross rod and the handrail support are locked and positioned through the lock rod, and after the user adjusts the handrail in place, the handrail can be positioned relatively accurately through the lock rod.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles and effects of the invention.
Unless specifically stated or otherwise defined, the same reference numerals in different drawings denote the same or similar technical features, and different reference numerals may be used for the same or similar technical features.
FIG. 1 is a first block diagram of a chair armrest according to an embodiment of the present invention;
FIG. 2 is a second block diagram of a chair armrest according to an embodiment of the present invention;
FIG. 3 is a first partially disassembled view of the armrest of the chair of FIG. 2;
FIG. 4 is a second partially disassembled view of the armrest of the chair of FIG. 2;
FIG. 5 is a mating structure of the slide cassette and the second guide channel;
FIG. 6 is a side view of the half-cartridge;
FIG. 7 is an enlarged view of a portion of FIG. 4 at A;
fig. 8 is a view of the slide cassette, the first guide groove, in another direction;
reference numerals illustrate:
10. the handrail support, 11, the support rod, 12, the first guiding groove body, 121, the positioning hole, 122, the sliding protrusion, 13, the first absorbing member, 131, the mounting groove, 14, the first conductive part, 15, the mounting plate, 20, the handrail rail, 21, the handrail body, 211, the rotating protrusion, 212, the lock rod, 2121, the locking part, 2122, the mounting recess, 2123, the pressing end, 2124, the rotating ring, 213, the resetting member, 22, the second guiding groove body, 221, the first pin hole, 222, the second pin hole, 23, the second absorbing member, 24, the stopper, 241, the pressure spring, 242, the first fixing pin, 243, the second fixing pin, 25, the yielding groove, 26, a guide lug part, 27, a sliding box, 271, a half box body, 272, a first guide groove, 273, a second guide groove, 274, a third guide groove, 275, a clamping inlet part, 28, a pressing part, 281, a mounting hole, 282, a sliding inclined surface, 31, a first control part, 311, a wheelchair rocker, 312, a first control button, 32, a second control part, 323, a volume adjusting knob, 324, a second control button, 34, a second conductive part, 40, magnetic particles, 50, a button, 60, a locking part, 61, a hinge hole, 62, a pressing part, 63, a locking part, 64, an elastic part, 70, a yielding window, 80 and a hinge shaft.
Detailed Description
In order that the invention may be readily understood, a more particular description of specific embodiments thereof will be rendered by reference to specific embodiments that are illustrated in the appended drawings.
Unless defined otherwise or otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. All technical and scientific terms used herein also have the meanings corresponding to the objectives of the technical solution implementing the invention, in the context of a realistic scenario in combination with the technical solution of the invention.
As used herein, the terms "first and second …" are used merely to distinguish between names and not to represent a particular number or order unless otherwise specified or defined.
It will be understood that when an element is referred to as being "fixed" to another element, it can be directly fixed to the other element or intervening elements may also be present; when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present; when an element is referred to as being "mounted to" another element, it can be directly mounted to the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present.
As used herein, unless specifically stated or otherwise defined, "the" means that the feature or technical content mentioned or described before in the corresponding position may be the same or similar to the feature or technical content mentioned.
Clearly, technical contents or features that are contrary to the object of the present invention or that are clearly contradictory should be excluded.
As shown in fig. 1 and 2, the seat comprises a seat body (not shown) and seat armrests, the seat armrests are located at the left side and the right side of the seat body, the seat armrests comprise two parts of an armrest bracket 10 and an armrest cross bar 20, a first control part 31 is arranged on the armrest cross bar 20 at the left side, the first control part 31 comprises a wheelchair rocker 311 arranged on the armrest cross bar 20 and a first control key 312 arranged on the armrest cross bar 20, a second control part 32 is arranged on the armrest cross bar 20 at the right side, and the second control part 32 comprises a volume adjusting knob 323 arranged on the armrest cross bar 20 and a second control key 324 arranged on the armrest cross bar 20.
As shown in fig. 3, 4 and 6, the armrest support 10 includes a support rod 11 and a mounting plate 15 extending in the front-rear direction, and the mounting plate 15 is provided on top of the support rod 11 and makes the armrest support 10T-shaped. The first guiding groove body 12 is fixed on the mounting plate 15 through screws, a plurality of positioning holes 121 are uniformly formed in two sides of the first guiding groove body 12, and sliding protrusions 122 are arranged at two ends of the side portion of the first guiding groove body 12. The handrail 20 comprises a handrail body 21 and a second guiding groove 22, a sliding box 27 is installed at the lower side of the handrail body 21, preferably, the sliding box 27 is fixed in the handrail body 21 through screws, the sliding box is formed by combining and installing two half box bodies 271, a first guiding groove 272 and a second guiding groove 273 are arranged at the upper part of the inner wall of the half box body 271, the lower edge of the first guiding groove 272 is lower than the lower edge of the second guiding groove 273 to form a step shape, the upper edge of the first guiding groove 272 is flush with the upper edge of the second guiding groove 273, two third guiding grooves 274 are arranged at the lower part of the inner wall of each half box body 271, and the sliding protrusion 122 of the first guiding groove 12 can slide in the third guiding grooves 274 in the sliding box 27. The first guide groove 272, the second guide groove 273, and the third guide groove 274 are parallel, the direction from the second guide groove 273 to the first guide groove 272 is the removal direction of the armrest crossbar 20, and the third guide groove 274 has a card inlet 275 at the end in the removal direction. The second guide groove 22 has a guide lug 26, and the guide lug 26 is engaged in the slide box 27 and slidably engaged with the first guide groove 272 and the second guide groove 273 of the slide box 27. As shown in fig. 7 and 8, a relief window 70 is provided on the slide case 27 near the card entrance 275, the relief window 70 is located at an end of the third guide groove 274, a hinge shaft 80 is provided on the slide case 27, one end of the lock 60 is a pressing portion 62, the other end is a locking portion 63, a hinge hole 61 is provided between the pressing portion 62 and the locking portion 63, the lock 60 is movably hinged on the slide case 27 through the hinge shaft 80, an elastic member 64 is provided between the lock 60 and the slide case 27, and the locking portion 63 of the lock 60 is engaged into the relief window 70 by the elastic member 64 and is blocked between the card entrance 275 and the third guide groove 274. In the present embodiment, the first guide groove 12 is a first sliding portion, the second guide groove 22 is a second sliding portion, and the slide box 27 is a third sliding portion.
As shown in fig. 4 and 5, a pressing member 28 is further provided in the slide case 27, a mounting hole 281 is provided in the pressing member 28, a fixing screw (not shown) passes through the mounting hole 281 to fix the pressing member 28 in the slide case 27, and a slide-in slope 282 is provided on a side of the pressing member 28 in the take-out direction. The second guiding groove 22 is provided with a first pin hole 221 and a second pin hole 222, wherein the second pin hole 222 is a strip hole, one end of the blocking piece 24 is provided with two first fixing pins 242, the other end is provided with two second fixing pins 243, the two first fixing pins 242 are respectively clamped into the first pin holes 221 on the second guiding groove 22, the two second fixing pins 243 are respectively clamped into the second pin holes 222 on the second guiding groove 22, a pressure spring 241 is arranged between the second guiding groove 22 and the blocking piece 24, and the blocking piece 24 is positioned below the pressing piece 28.
As shown in fig. 3 and 4, a first elongated absorbent member 13 is provided on the first guide groove 12, a mounting groove 131 is provided on the first absorbent member 13, the first conductive portion 14 is clamped in the mounting groove 131 and connected to the first absorbent member 13, the first absorbent member 13 is mounted on the inner side of the bottom of the first guide groove 12 and fixed to the first guide groove 12, and magnetic particles 40 are provided at positions near both ends of the first absorbent member 13. The second absorbing member 23 is fixed to the outer side of the bottom of the second guiding groove 22 by screws, the second conductive part 34 is fixed in the mounting groove of the second absorbing member 23, and the second absorbing member 23 is also provided with magnetic particles 40 near both ends. When the first adsorbing member 13 and the second adsorbing member 23 are close to each other, the first adsorbing member 13 and the second adsorbing member 23 adsorb each other by the magnetic particles 40, and the first conductive portion 14 and the second conductive portion 34 are brought into contact with each other to conduct the electric conduction, thereby controlling the driving member, the sound system, the lighting system, and the like of the wheelchair. When the first absorbent member 13 is separated from the second absorbent member 23, the first conductive portion 14 is disconnected from the second conductive portion 34. The magnetic attraction mode is adopted to realize the electric connection between the first conductive part 14 and the second conductive part 34, so that the transmission of control signals is realized, the complexity of a connecting circuit at the position between the handrail support 10 and the handrail cross rod 20 is reduced, the connection or disconnection of the conductive part between the handrail support 10 and the handrail cross rod 20 can be conveniently realized, and the assembly and the disassembly between the handrail support 10 and the handrail cross rod 20 can be conveniently realized. The armrest support 10 and the armrest cross bar 20 can be conveniently unpacked during the assembly and transportation of the armrest, so as to reduce the occupation of space.
As shown in fig. 3 and 4, in the use state, the second guide groove 22 is positioned in the first guide groove 12 and is overlapped with the first guide groove 12 under the adsorption action of the first adsorption member 13 and the second adsorption member 23, and a relief groove 25 is provided at the side portion of the second guide groove 22. The sliding box 27 of the armrest body 21 is provided with a rotating protrusion 211, one end of the lock rod 212 is provided with a rotating ring 2124, the other end of the lock rod 212 is provided with a pressing end 2123, the rotating ring 2124 is sleeved on the rotating protrusion 211, the lock rod 212 is hinged with the sliding box 27 through the rotating protrusion 211, the rotating ring 2124 can be fixed on the rotating protrusion 211 through a screw, and the lock rod 212 can rotate around the rotating protrusion 211. The middle part of the lock rod 212 is protruded to form a locking part 2121, the lock rod 212 is provided with a mounting concave part 2122, the reset piece 213 is arranged between the two lock rods 212 and in the mounting concave part 2122, and the locking part 2121 is clamped into the positioning hole 121 after passing through the relief groove 25. The armrest cross bar 20 is provided with a button 50, and the button 50 is provided corresponding to the outer position of the pressing end 2123, or the button is directly fixed to the pressing end 2123 by a screw, and the pressing end 2123 of the lock lever 212 can be acted upon by pressing the button 50. The relief groove 25 on the side of the second guide groove 22 allows a displacement space for sliding the locking portion 2121 when the front-rear position of the armrest cross bar 20 is adjusted.
Because the relative positions of the first guiding groove 12 and the sliding box 27 will change, the electric control part (i.e. the wheelchair rocker 311, the first control button 312, the volume adjusting knob 323, and the second control button 324) on the armrest cross bar 20 is in butt joint with the electric control part on the armrest support 10 through the adsorption of the first adsorption piece 13 and the second adsorption piece 23, and the specific butt joint mode is as follows: when the first absorbing member 13 and the second absorbing member 23 absorb, the first conductive portion 14 is connected to the second conductive portion 34, and no relative displacement is generated between the first absorbing member 13 and the second absorbing member 23 and between the first conductive portion 14 and the second conductive portion 34, and the first guiding groove 12 and the second guiding groove 22 slide together relative to the sliding box 27 under the absorption action of the first absorbing member 13 and the second absorbing member 23, so as to adjust the position of the handrail cross bar 20. The structure reduces the trouble caused by manual plug butt joint, and has simple assembly and good manufacturability.
The following description will be given of the process of use in combination with the mounting and mating relationship between the first guide groove body 12, the second guide groove body 22, and the slide box 27:
1. if the user needs to take down the armrest cross bar 20, by pressing the button 50 on the armrest cross bar 20 and acting on the pressing end 2123 of the lock lever 212, the pressing end 2123 overcomes the elastic force of the reset element 213 to compress the reset element 213, the lock lever 212 rotates around the rotation protrusion 211, and the locking portion 2121 withdraws from the positioning hole 121; the handrail 20 is pushed backward, at this time, the sliding protrusion 122 on the first guiding groove 12 aligns with the card inlet 275 on the sliding box 27, then the pressing part 62 at one end of the locking member 60 is pressed, the locking member 60 overcomes the elastic force of the elastic member 64 and makes the locking part 63 separate, the locking part 63 is opened from the card inlet 275, the handrail 20 is lifted up, and the sliding protrusion 122 on the first guiding groove 12 separate from the card inlet 275 on the sliding box 27, so that the handrail 20 can be removed.
2. After the user removes the handrail 20, the second fixing pin 243 of the blocking member 24 moves upward in the second pin hole 222 of the bar shape under the action of the pressure spring 241, the blocking member 24 moves upward and is blocked by the pressing member 28, at this time, the second guiding groove 22 is limited in the first guiding groove 272 of the sliding box 27, so that the second guiding groove 22 is prevented from moving randomly relative to the sliding box 27, and when the handrail 20 is installed, the first absorbing member 13 on the second guiding groove 22 is directly absorbed and abutted with the second absorbing member 23 due to the limiting of the second guiding groove 22 by the first guiding groove 272, and the first conductive portion 14 is led and abutted with the second conductive portion 34.
3. The first guide groove 12, the second guide groove 22, and the slide box 27 on the left side have the same specifications as the first guide groove 12, the second guide groove 22, and the slide box 27 on the right side. According to the handedness of the user, the user selects the installation position of the handrail 20 on the left side or the right side according to the arrangement of the corresponding first control part 31 and the second control part 32 on the handrail 20, and after determining the installation position, the user installs the handrail in the following manner:
referring to fig. 4 and 6, the sliding box 27 in the armrest cross bar 20 is aligned with the support rod 11, the sliding protrusion 122 on the first guiding groove 12 is aligned with the clamping inlet 275, the armrest cross bar 20 is pressed down, at this time, the second guiding groove 22 is pushed up by the first guiding groove 12, the sliding protrusion 122 is clamped into the third guiding groove 274 and is in sliding fit with the third guiding groove 274, and the guiding lug 26 of the second guiding groove 22 is matched with the upper edges of the first guiding groove 272 and the second guiding groove 273.
Referring to fig. 4 and 6, the sliding box 27 in the armrest cross bar 20 is aligned with the first guide groove 12 provided on the support bar 11, the sliding protrusion 122 on the first guide groove 12 is aligned with the clamping inlet 275, the armrest cross bar 20 is pressed down, at this time, under the supporting action of the support bar 11, the second guide groove 22 and the first guide groove 12 overcome the downward force of the compression spring 241 and move up relative to the sliding box 27, so that the guiding lug 26 of the second guide groove 22 can slide relative to the armrest cross bar 20 at the upper edge position of the first guide groove 272 and the second guide groove 273, which is embodied as that the first guide groove 12 and the second guide groove 22 are fixed, the armrest cross bar 20 slides relative to the first guide groove 12 and the second guide groove 22, and the sliding protrusion 122 is clamped into the third guide groove 274 and performs sliding fit with the third guide groove 274.
4. If the user needs to adjust the position of the armrest cross bar 20 back and forth, by pressing the button 50 on the armrest cross bar 20 and acting on the pressing end 2123 of the lock bar 212, the pressing end 2123 overcomes the elastic force of the reset piece 213 to compress the reset piece 213, the lock bar 212 rotates around the rotation protrusion 211, the locking portion 2121 withdraws from the positioning hole 121, after being adjusted in place, the button 50 is released, the locking portion 2121 is again locked into the positioning hole 121, and the position of the armrest cross bar 20 is locked, so that the armrest cross bar 20 cannot move back and forth and cannot be pulled out of the support bar 11.
The usage habits of users may be different (such as left-handed and right-handed), so that the users can conveniently exchange the left and right handrail crossbars 20 according to their operation habits, so as to facilitate the users to select their proper modes for controlling the wheelchair. 4. When the user wants to adjust the front-rear position of the armrest crossbar 20, he pushes the button 50 on the armrest crossbar 20, the locking portion 2121 of the lock lever 212 withdraws from the positioning hole 121, the armrest crossbar 20 is pushed in the front-rear direction, the sliding protrusion 122 of the first guide groove 12 is slidably engaged with the third guide groove 274, the guide lug 26 of the second guide groove 22 is engaged with the upper edges of the first guide groove 272 and the second guide groove 273, after the user adjusts the armrest crossbar 20 in place, the button 50 is released, the locking portion 2121 of the lock lever 212 is again locked into the positioning hole 121 by the reset member 213, the positions of the first guide groove 12, the second guide groove 22 and the sliding box 27 are locked, and then the armrest crossbar 20 is fixed, and after the armrest crossbar 20 is adjusted in place, the locking portion 63 of the lock member 60 is locked into the locking entrance portion 275 through the release window 70, and the sliding protrusion 122 is blocked from being released from the locking entrance portion 275 on the sliding box 27.
It should be noted that:
1. the foregoing "first and second …" do not denote a particular quantity or order, but rather are merely used to distinguish one from another.
2. The seat armrest is suitable for common seats and wheelchairs.
3. The "first sliding portion", "second sliding portion" and "third sliding portion" do not mean that they are slidably mounted, but means a positional or movable structural relationship between the three; in the present embodiment, after the first absorbent member 13 and the second absorbent member 23 are absorbed, the first sliding portion and the second sliding portion are fixed, and at this time, the third sliding portion slides with respect to the second sliding portion; it will be appreciated that the third slide may also be arranged to slide relative to the first slide as required by the structural arrangement.
4. Only the detailed construction of one of the armrests is shown in detail and the other is shown only in fig. 1, in this embodiment the armrests on both sides differ mainly in their control parts only, wherein the armrest support 10 of the armrests is identical or similar to the abutment of the armrest cross bar 20, so that no deliberate distinction is made, and reference is made to the subsequent illustration for the details of the armrests shown in fig. 1.
5. The seat body (and the circuit portion of the seat body) are not shown, and the connection structure of the seat body, the seat armrest, and the seat body may be any one of those described in the related art, or may be a new design.
6. In the illustration of the present embodiment, the left handrail bar and the right handrail bar are merely for convenience of distinction and explanation, and it is needless to say that the left handrail bar and the right handrail bar are completely interchangeable in the present embodiment; similarly, the first control portion on the left armrest cross bar and the second control portion on the right armrest cross bar are only distinguished for the sake of detailed description, and the first control portion and the second control portion may be one or a combination of more of control buttons, volume adjusting knobs, wheelchair rockers, and other control members, which is not limited to the embodiment.
7. The front in the front-rear direction refers to the direction in which the user sits on the seat, and the rear refers to the direction in which the user's back faces.
8. In this embodiment, the "removal direction" means a direction toward the rear end of the armrest.
The foregoing embodiments are provided for the purpose of exemplary reproduction and deduction of the technical solution of the present invention, and are used for fully describing the technical solution, the purpose and the effects of the present invention, and are used for enabling the public to understand the disclosure of the present invention more thoroughly and comprehensively, and are not used for limiting the protection scope of the present invention.
The above examples are also not an exhaustive list based on the invention, and there may be a number of other embodiments not listed. Any substitutions and modifications made without departing from the spirit of the invention are within the scope of the invention.
Claims (22)
1. The seat armrest is characterized by comprising an armrest support and an armrest cross rod, wherein the armrest support is provided with a first absorption part and a first conductive part, the first absorption part is connected with the first conductive part, the armrest cross rod is provided with a second absorption part and a second conductive part, the second absorption part is connected with the second conductive part, and when the first absorption part is absorbed by the second absorption part, the first conductive part is in butt joint with the second conductive part; the handrail support is provided with a first sliding part, the handrail cross rod is provided with a second sliding part and a third sliding part, the first sliding part and the second sliding part are respectively matched with the third sliding part, and the first conductive part and the first absorption part are arranged on the first sliding part; the second conductive part and the second absorption part are arranged on the second sliding part.
2. The armrest of claim 1, further comprising a travel lock mechanism for limiting sliding movement between the first sliding portion and the third sliding portion.
3. The chair armrest according to claim 2, wherein a first guide groove body is arranged on the armrest support, the first guide groove body is the first sliding part, the armrest cross bar comprises an armrest body and a second guide groove body, at least two guide grooves are arranged on the armrest body, the second guide groove body is the second sliding part, the guide groove is the third sliding part, a guide lug part is arranged on the second guide groove body, a sliding protrusion is arranged on the first guide groove body, and the guide lug part and the sliding protrusion are respectively clamped into the guide groove and matched with the guide groove.
4. A chair armrest according to claim 3 wherein the guide channel comprises a first guide channel, a second guide channel and a third guide channel, the upper edges of the first guide channel and the second guide channel being flush, the lower edge of the first guide channel being lower than the lower edge of the second guide channel and being stepped; the first guide groove, the second guide groove and the third guide groove are parallel; the guide lug is matched with the first guide groove and the second guide groove, and the sliding protrusion is matched with the third guide groove.
5. The chair armrest according to claim 4, wherein a sliding box is provided at the lower portion of the armrest body, the sliding box being formed by combining and installing two half box bodies, and the first guide groove, the second guide groove and the third guide groove are provided on the inner walls of the half box bodies.
6. The chair armrest according to claim 5, wherein the number of the third guide grooves is at least two, the third guide grooves are provided with a clamping inlet part at the end parts, the sliding protrusions are arranged at the two ends of the first guide groove body, and the sliding protrusions are matched with the clamping inlet parts.
7. The chair armrest according to claim 6, wherein a lock is provided on the sliding box adjacent the snap-in portion.
8. The chair armrest according to claim 4, wherein the armrest body is provided with a pressing member, the second guide groove body is provided with a blocking member, a compression spring is arranged between the second guide groove body and the blocking member, and a sliding-in inclined surface is arranged on one side, close to the blocking member, of the pressing member.
9. The chair armrest according to claim 4, wherein a first pin hole and a second pin hole are formed in the second guide groove body, wherein the second pin hole is a strip hole, a first fixing pin is arranged at one end of the blocking member, a second fixing pin is arranged at the other end of the blocking member, the first fixing pins are respectively clamped into the first pin holes in the second guide groove body, the second fixing pins are respectively clamped into the second pin holes in the second guide groove body, and the blocking member is positioned below the pressing member.
10. The chair armrest according to claim 9, wherein the travel lock mechanism comprises a positioning portion provided on the first guide groove body and a locking portion provided on the armrest body, the locking portion being engaged with the positioning portion.
11. The chair armrest according to claim 10, wherein the positioning portions are positioning holes, each positioning hole being provided along a longitudinal direction of the first guide groove body.
12. The chair armrest according to claim 10, further comprising a lock rod hinged to the armrest body and a return member for returning the lock rod, wherein the locking portion is a protrusion provided at a middle portion of the lock rod.
13. A chair armrest as claimed in claim 12, wherein a swivel protrusion is provided on the armrest body, through which the locking lever is hinged to the armrest body.
14. The chair armrest according to claim 12, wherein the positioning portions are provided on both sides of the first guide groove body, the lock bars are provided on both sides of the armrest body, and the return member is provided between the two lock bars.
15. The armrest of claim 10, wherein the second guide slot is disposed in the first guide slot, and a relief slot is disposed at a side portion of the second guide slot, and the locking portion corresponds to the positioning portion after passing through the relief slot.
16. The chair armrest of claim 15 wherein the first absorbent member and the first conductive portion are disposed on the inside of the bottom of the first guide channel and the second absorbent member and the second conductive portion are disposed on the outside of the bottom of the second guide channel.
17. The chair armrest of claim 10, wherein the first and second absorbent members are elongated, the first and second absorbent members are both positioned in the first guide channel, the first absorbent member is fixed to the first guide channel, and the second absorbent member is disposed on the second guide channel and slidably engages the third sliding portion.
18. The chair armrest according to claim 17, wherein the first and second absorbing members are provided with magnetic particles at positions near both ends, and the magnetic particles of the first absorbing member and the magnetic particles of the second absorbing member are attracted to each other.
19. The chair armrest of claim 17 wherein one of the magnetic particles of the first and second suction members is convex with respect to its mounting surface and the other magnetic particle is concave with respect to its mounting surface.
20. A seat comprising a seat body and a seat arm rest according to any one of the preceding claims 1 to 19, said seat arm rest being located on at least one side of the seat body.
21. The seat of claim 20, wherein the seat armrests are located on the left and right sides of the seat body, a first control portion is provided on the left side of the armrest cross bar, a second control portion is provided on the right side of the armrest cross bar, and the first control portion and the second control portion are respectively connected to the respective second conductive portions.
22. A seat comprising a seat body and a seat rail according to any one of the preceding claims 4 to 18, the seat rail being located on the left and right sides of the seat body; the left handrail cross bar is provided with a first control part, the right handrail cross bar is provided with a second control part, and the first control part and the second control part are respectively connected with the second conductive parts in a conducting way; the specifications of the first guide groove body, the second guide groove body and the sliding box on the left side are the same as those of the first guide groove body, the second guide groove body and the sliding box on the right side.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010082308.0A CN111227549B (en) | 2020-02-07 | 2020-02-07 | Chair armrest and chair |
| PCT/CN2020/139726 WO2021155722A1 (en) | 2020-02-07 | 2020-12-26 | Seat armrest and seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010082308.0A CN111227549B (en) | 2020-02-07 | 2020-02-07 | Chair armrest and chair |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111227549A CN111227549A (en) | 2020-06-05 |
| CN111227549B true CN111227549B (en) | 2024-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010082308.0A Active CN111227549B (en) | 2020-02-07 | 2020-02-07 | Chair armrest and chair |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111227549B (en) |
| WO (1) | WO2021155722A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111227549B (en) * | 2020-02-07 | 2024-02-23 | 广州视源电子科技股份有限公司 | Chair armrest and chair |
| CN114052424A (en) * | 2020-07-31 | 2022-02-18 | 广力达企业有限公司 | Chair armrest |
| CN112168526A (en) * | 2020-09-18 | 2021-01-05 | 北京三角洲机器人科技有限公司 | Armrest device and scooter |
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Also Published As
| Publication number | Publication date |
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| WO2021155722A1 (en) | 2021-08-12 |
| CN111227549A (en) | 2020-06-05 |
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