EP2888974B1 - Armrest device - Google Patents
Armrest device Download PDFInfo
- Publication number
- EP2888974B1 EP2888974B1 EP14198234.8A EP14198234A EP2888974B1 EP 2888974 B1 EP2888974 B1 EP 2888974B1 EP 14198234 A EP14198234 A EP 14198234A EP 2888974 B1 EP2888974 B1 EP 2888974B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- armrest
- connecting rods
- sleeve section
- assembly
- pivot limiting
- 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.)
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- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 230000000284 resting effect Effects 0.000 claims description 4
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
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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
- A47C1/00—Chairs adapted for special purposes
- A47C1/02—Reclining or easy chairs
- A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
- A47C1/03—Reclining or easy chairs having independently-adjustable supporting parts the parts being arm-rests
- A47C1/0308—Reclining or easy chairs having independently-adjustable supporting parts the parts being arm-rests adjustable by rotation
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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
- A47C7/541—Supports for the arms of adjustable type
Definitions
- the invention relates to an armrest device, more particularly to an armrest device that can be suitably mounted on a body supporting apparatus, such as, a seat, an office chair, a wheelchair, an electric wheelchair, an electric mobility scooter, a walker, etc.
- a body supporting apparatus such as, a seat, an office chair, a wheelchair, an electric wheelchair, an electric mobility scooter, a walker, etc.
- a conventional body supporting apparatus such as a seat, an office chair, a wheelchair, an electric wheelchair, an electric mobility scooter, a walker, etc., generally has an armrest device connected to a backrest thereof.
- the armrest device includes a fixed bracket, and two armrest boards fixedly mounted on the fixed bracket for a user to rest his/her arms thereon.
- the conventional armrest device can provide resting of the user's arms, the width thereof is fixed.
- the armrest device must be redesigned to match the backrest or the stature of the user.
- the armrest device of the conventional body supporting apparatus may not only be inconvenient to manufacture and assemble, but also may not be comfortable to use when the distance between the armrest boards does not fit the stature of the user.
- EP 1 532 897 A2 discloses a task chair equipped with a mechanism for independently adjusting the height and width of support arms by the manual operation of a single adjustment knob.
- Each of the support arms includes a first arm portion and a second arm portion that are pivotally coupled by corresponding pivot joints.
- Each second arm portion carries one of a pair of arm pads.
- Each second arm portion may be inclined relative to the corresponding first arm portion for inclining the corresponding arm pad relative to a seat plate of the task chair.
- Each arm pad is joined with the corresponding second arm portion by a coupling mechanism that permits movement of each arm pad with two degrees of translational freedom and one degree of rotational freedom.
- An object of this invention is to provide an armrest device that is capable of overcoming the aforesaid drawbacks of the prior art.
- an armrest device of this invention includes a connecting mechanism and two armrest units.
- the connecting mechanism includes two connecting rods and at least one fixing member.
- Each connecting rod has an armrest mounting portion and an overlapping portion connected to the armrest mounting portion.
- the overlapping portions of the connecting rods are overlapped with each other.
- the overlapping length of the overlapping portions is adjustable.
- the at least one fixing member detachably interconnects the overlapping portions of the connecting rods.
- the armrest units are mounted pivotably and respectively to the armrest mounting portions of the connecting rods.
- each of said connecting rods has a plurality of fixing holes spaced apart from each other along the length of said overlapping portion, and said at least one fixing member includes two said fixing members extending through two of said fixing holes in one of said connecting rods and selectively engaging two of said fixing holes in the other one of said connecting rods.
- a beneficial effect of this invention resides in that because the armrest units are respectively mounted on the connecting rods and because the overlapping length of the connecting rods is adjustable, the width between the armrest units can be adjusted, so that the armrest device of this invention can be suitably mounted on the body supporting apparatus 1 with different widths. Hence, easy manufacturing and assembling thereof can be enhanced. Furthermore, the width between the armrest units 3 and the heights of the armrest units 3 can be adjusted to cope with the different stature of users to thereby enhance use comfort.
- an armrest device is suitable for mounting on a body supporting apparatus 1, such as a seat, an office chair, a wheelchair, an electric wheelchair, an electric mobility scooter, a walker, etc., and is adjustable according to the width of the body supporting apparatus 1.
- the body supporting apparatus 1 includes a backrest 11, and a rear cap 12 fixed to a rear side of the backrest 11 by a plurality of fasteners 10.
- the backrest 11 has a semicircular mounting portion 111 facing the rear cap 12.
- the rear cap 12 has two spaced-apart through holes 121.
- the body supporting apparatus 1 further includes a mounting passage 13 cooperatively defined by the backrest mounting portion 111 and the rear cap 12, and a telescopic rod 14 disposed at a rear lower portion of the backrest 11.
- the armrest device of this embodiment comprises a connecting mechanism 2 and two armrest units 3.
- the connecting mechanism 2 includes two connecting rods 21 adjustably and movably mounted in the mounting passage 13, two reinforcing plates 23 respectively fixed to the connecting rods 21 by a plurality of fixing screws 22, and two fixing members 24 detachably interconnecting the connecting rods 21.
- Each of the connecting rods 21 has an armrest mounting portion 211, and an overlapping portion 212 connected to and disposed inwardly of the armrest mounting portion 211.
- the armrest mounting portion 211 includes an inner sleeve section 213 connected to the overlapping portion 212, and an outer sleeve section 214 connected to the inner sleeve section 213 opposite to the overlapping portion 212.
- each of the reinforcing plates 23 is fixed to the overlapping portion 212 of the respective connecting rod 21 by using two fixing screws 22, and is proximate to the inner sleeve section 213 of the respective connecting rod 21.
- the inner sleeve section 213 has a circular main body, and a notched part 215 formed in the main body adjacent to a junction between the inner and outer sleeve sections 213, 214.
- the outer sleeve section 214 has a circular main body, a notched part 218 with two diametrically opposite notches 2181 formed in an outer end of the main body of the outer sleeve section 214 and distal from the notched part 215, and a threaded connecting hole 216 extending axially and inwardly from the outer end of the outer sleeve main body between the notches 218.
- the overlapping portion 212 has a semi-circular cross section, and is formed with a plurality of fixing holes 217 spaced apart from each other along the length thereof.
- the overlapping portions 212 of the connecting rods 21 are overlapped with each other.
- the length of the connecting mechanism 2 after assembly can be altered by adjusting the overlapping length of the overlapping portions 212 of the connecting rods 21.
- the armrest units 3 are symmetrically disposed on left and right sides of the connecting mechanism 2, and are mounted pivotably and respectively to the armrest mounting portions 211 of the connecting rods 21.
- Each of the armrest units 3 includes an engaging ring 39, two compressible rings 31, a pivot limiting seat 30, a wear-resistant piece 32, an angle fixing seat 33, and an armrest assembly 34. Since the structures of the armrest units 3 are similar, only the armrest unit 3 mounted to the armrest mounting portion 211 of a left one of the connecting rods 21 will be described hereinafter.
- the engaging ring 39 is sleeved fixedly on the inner sleeve section 213 of the armrest mounting portion 211.
- the two compressible rings 31 are sleeved side by side on the inner sleeve section 213.
- the pivot limiting seat 30 is sleeved fixedly and non-rotatably on the notched part 215 of the inner sleeve section 213.
- the wear-resistant piece 32, the angle fixing seat 33, and the armrest assembly 34 are sequentially sleeved on the outer sleeve section 214 of the armrest mounting portion 211 from an inner side to an outer side thereof.
- the compressible rings 31 are disposed between the engaging ring 39 and the pivot limiting seat 30.
- the wear-resistant piece 32 is sandwiched between the pivot limiting seat 30 and the angle fixing seat 33.
- the armrest unit 3 further includes a mounting assembly 35, a first adjustment screw 37 threadedly and adjustably connected to the angle fixing seat 33, and a second adjustment screw 38 threadedly and adjustably connected to the armrest assembly 34.
- the pivot limiting seat 30 has a seat main body 301 fixedly sleeved on the notched part 215 of the inner sleeve section 213, a protruding portion 302 extending rearwardly from the seat main body 301, a pivot limiting member 303 projecting from the seat main body 301 toward the angle fixing seat 33, and a coupling rod 304 coupling the protruding portion 302 to the telescopic rod 14 (see Figure 1 ) of the body supporting apparatus 1.
- the wear-resistant piece 32 is circular, and has a first axial hole 321 for extension of the armrest mounting portion 211 therethrough, and an insertion hole 322 offset from the first axial hole 321 for extension of the pivot limiting member 303 therethrough.
- the angle fixing seat 33 includes a circular main body 331 defining a central hole, an axial tubular wall 339 projecting from an outer surface of the main body 331 toward the armrest assembly 34 and defining a second axial hole 330 communicating with the central hole in the main body 331, and a first stopping block 332 projecting from the outer surface of the main body 331 and surrounding an outer periphery of the axial tubular wall 339.
- An inner surface 333 of the main body 331 faces the wear-resistant piece 32, and has an arcuate pivot limiting groove 334 surrounding the central hole in the main body 331.
- the pivot limiting groove 334 has a first groove end 335 and a second groove end 336 opposite to the first groove end 335.
- the first stopping block 332 has a first stopping face 337, and a first threaded hole 338 spaced apart from the first stopping face 337.
- the armrest assembly 34 includes an armrest rod 340, and an armrest board 348 adjustably mounted on the armrest rod 340.
- the armrest rod 340 has a mounting portion 341 for mounting of the armrest board 348 thereon, and a pivot connection portion 342 mounted coaxially on and pivotable relative to the angle fixing seat 33.
- the pivot connection portion 342 has a third axial hole 343 axially aligned with the second axial hole 330, and a second stopping block 344 protruding toward the angle fixing seat 33 and surrounding the third axial hole 343.
- the second stopping block 344 has a second stopping face 345 (see Fig. 5 ), and a second threaded hole 347 spaced apart from the second stopping face 345. As shown in Figs.
- each of the first and second adjustment screws 37, 38 is configured as a headless screw, and is inserted threadedly and adjustably into a respective one of the first and second threaded holes 338, 347.
- An inner end of the first adjustment screw 37 is abuttable against the second stopping face 345, while an inner end of the second adjustment screw 38 is abuttable against the first stopping face 337.
- the mounting assembly 35 includes a first cushion pad 351 sleeved non-rotatably on the notched part 218 of the outer sleeve section 214 of the armrest mounting portion 211, a second cushion pad 352 abutting against the first cushion pad 351, and a connecting screw 353 extending through the first and second cushion pads 351, 352 and threadedly engaging the threaded hole 216 in the outer sleeve section 214.
- the armrest assembly 34 is mounted on the connecting rod 21.
- the overlapping length of the overlapping portions 212 of the connecting rods 21 is first adjusted according to the width of the backrest 11 of the body supporting apparatus 1, after which the fixing members 24 are inserted through the through holes 121 in the rear cap 12 and two of the fixing holes 217 in one of the connecting rods 21, and are threadedly and selectively engaged with two of the fixing holes 217 in the other connecting rod 21, thereby fixedly coupling the overlapping portions 212 of the connecting rods 21.
- the armrest units 3 are respectively mounted and connected to the armrest mounting portions 211 of the connecting rods 21.
- the armrest assemblies 34 of the armrest units 3 are respectively disposed on the left and right sides of the backrest 11 of the body supporting apparatus 1.
- the armrest device of this embodiment can be adjusted according to the width of the backrest 11 of the body supporting apparatus 1 without much effort.
- the other one of the first and second adjustment screws 37, 38 is threadedly adjusted to move further into the respective first or second threaded hole 338, 347, so that the inner end thereof pushes the respective second or first stopping face 345, 337, thereby moving the inner end of the one of the first and second adjustment screws 37, 38 to abut against the respective second or first stopping face 345, 337.
- the armrest assembly 34 of each armrest unit 3 cannot pivot further, and is retained at the desired angle or height.
- the armrest assembly 34 is not only mounted coaxially and pivotably to the armrest mounting portion 211 of the respective connecting rod 21, but also the connecting screw 353 is not likely to loosen during the pivot movement of the armrest assembly 34.
- each armrest unit 3 when the armrest device of this embodiment is in normal use, because the compressible rings 31, the pivot limiting seat 30, the wear-resistant piece 32, the angle fixing seat 33 and the armrest rod 340 of the armrest assembly 34 of each armrest unit 3 are disposed tightly close to each other, and because the pivot limiting member 303 is inserted into the pivot limiting groove 334 of the angle fixing seat 33 and abuts against the first groove end 335 thereof, each armrest unit 3 is disposed in the horizontal arm-resting position at this time, and the armrest assembly 34 thereof is retained at a fixed angle for an arm of the user to rest thereon.
- the armrest device of this invention not only has a novel structure, but also can be adjusted according to the requirement of the body supporting apparatus 1. That is, the width between the armrest units 3 can be adjusted so that the armrest device of this invention can be mounted to the body supporting apparatus 1 with different widths. The purpose of easy manufacturing and assembling can thus be achieved. Simultaneously, the width between the armrest units 3 and the heights of the armrest units 3 can be adjusted to cope with the different stature of users to thereby enhance use comfort.
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- Health & Medical Sciences (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Seats For Vehicles (AREA)
- Steps, Ramps, And Handrails (AREA)
Description
- The invention relates to an armrest device, more particularly to an armrest device that can be suitably mounted on a body supporting apparatus, such as, a seat, an office chair, a wheelchair, an electric wheelchair, an electric mobility scooter, a walker, etc.
- A conventional body supporting apparatus, such as a seat, an office chair, a wheelchair, an electric wheelchair, an electric mobility scooter, a walker, etc., generally has an armrest device connected to a backrest thereof. The armrest device includes a fixed bracket, and two armrest boards fixedly mounted on the fixed bracket for a user to rest his/her arms thereon. Although the conventional armrest device can provide resting of the user's arms, the width thereof is fixed. When the width of the backrest is changed or the stature of the user is different, the armrest device must be redesigned to match the backrest or the stature of the user. In view of this, the armrest device of the conventional body supporting apparatus may not only be inconvenient to manufacture and assemble, but also may not be comfortable to use when the distance between the armrest boards does not fit the stature of the user.
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EP 1 532 897 A2 discloses a task chair equipped with a mechanism for independently adjusting the height and width of support arms by the manual operation of a single adjustment knob. Each of the support arms includes a first arm portion and a second arm portion that are pivotally coupled by corresponding pivot joints. Each second arm portion carries one of a pair of arm pads. Each second arm portion may be inclined relative to the corresponding first arm portion for inclining the corresponding arm pad relative to a seat plate of the task chair. Each arm pad is joined with the corresponding second arm portion by a coupling mechanism that permits movement of each arm pad with two degrees of translational freedom and one degree of rotational freedom. - An object of this invention is to provide an armrest device that is capable of overcoming the aforesaid drawbacks of the prior art.
- Accordingly, an armrest device of this invention includes a connecting mechanism and two armrest units. The connecting mechanism includes two connecting rods and at least one fixing member. Each connecting rod has an armrest mounting portion and an overlapping portion connected to the armrest mounting portion. The overlapping portions of the connecting rods are overlapped with each other. The overlapping length of the overlapping portions is adjustable. The at least one fixing member detachably interconnects the overlapping portions of the connecting rods. The armrest units are mounted pivotably and respectively to the armrest mounting portions of the connecting rods. The overlapping portion of each of said connecting rods has a plurality of fixing holes spaced apart from each other along the length of said overlapping portion, and said at least one fixing member includes two said fixing members extending through two of said fixing holes in one of said connecting rods and selectively engaging two of said fixing holes in the other one of said connecting rods.
- A beneficial effect of this invention resides in that because the armrest units are respectively mounted on the connecting rods and because the overlapping length of the connecting rods is adjustable, the width between the armrest units can be adjusted, so that the armrest device of this invention can be suitably mounted on the body supporting apparatus 1 with different widths. Hence, easy manufacturing and assembling thereof can be enhanced. Furthermore, the width between the
armrest units 3 and the heights of thearmrest units 3 can be adjusted to cope with the different stature of users to thereby enhance use comfort. - Other features and advantages of the present invention will become apparent in the following detailed description of the embodiment with reference to the accompanying drawings, of which:
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Figure 1 is a fragmentary perspective view of a body supporting apparatus incorporating an armrest device according to the embodiment of the present invention; -
Figure 2 is an exploded perspective view of a left armrest unit and a left connecting rod of the armrest device of the embodiment; -
Figure 3 is a schematic top view of the embodiment; -
Figure 4 is a sectional view of the embodiment taken along line IV-IV ofFigure 3 ; -
Figure 5 is a sectional view of the embodiment taken along line V-V ofFigure 3 ; -
Figure 6 is a view similar toFigure 5 , but with a second adjustment screw being moved toward an outer side of a second threaded hole to permit adjustment of an armrest unit of the embodiment; and -
Figure 7 is a sectional view of the embodiment taken along line VII-VII ofFigure 3 , with the solid lines representing the armrest unit of the embodiment in a horizontal arm-resting position and with the phantom lines representing the armrest unit of this embodiment in a vertical non-resting position. - Referring to
Figures 1 to 7 , an armrest device according to the embodiment of the present invention is suitable for mounting on a body supporting apparatus 1, such as a seat, an office chair, a wheelchair, an electric wheelchair, an electric mobility scooter, a walker, etc., and is adjustable according to the width of the body supporting apparatus 1. The body supporting apparatus 1 includes abackrest 11, and arear cap 12 fixed to a rear side of thebackrest 11 by a plurality offasteners 10. Thebackrest 11 has asemicircular mounting portion 111 facing therear cap 12. Therear cap 12 has two spaced-apart throughholes 121. The body supporting apparatus 1 further includes amounting passage 13 cooperatively defined by thebackrest mounting portion 111 and therear cap 12, and atelescopic rod 14 disposed at a rear lower portion of thebackrest 11. The armrest device of this embodiment comprises aconnecting mechanism 2 and twoarmrest units 3. - The connecting
mechanism 2 includes two connectingrods 21 adjustably and movably mounted in themounting passage 13, two reinforcingplates 23 respectively fixed to the connectingrods 21 by a plurality offixing screws 22, and twofixing members 24 detachably interconnecting the connectingrods 21. Each of the connectingrods 21 has anarmrest mounting portion 211, and an overlappingportion 212 connected to and disposed inwardly of thearmrest mounting portion 211. Thearmrest mounting portion 211 includes aninner sleeve section 213 connected to the overlappingportion 212, and anouter sleeve section 214 connected to theinner sleeve section 213 opposite to the overlappingportion 212. In this embodiment, each of the reinforcingplates 23 is fixed to the overlappingportion 212 of the respective connectingrod 21 by using twofixing screws 22, and is proximate to theinner sleeve section 213 of the respective connectingrod 21. Theinner sleeve section 213 has a circular main body, and anotched part 215 formed in the main body adjacent to a junction between the inner andouter sleeve sections outer sleeve section 214 has a circular main body, anotched part 218 with two diametricallyopposite notches 2181 formed in an outer end of the main body of theouter sleeve section 214 and distal from thenotched part 215, and a threaded connectinghole 216 extending axially and inwardly from the outer end of the outer sleeve main body between thenotches 218. - The overlapping
portion 212 has a semi-circular cross section, and is formed with a plurality offixing holes 217 spaced apart from each other along the length thereof. The overlappingportions 212 of the connectingrods 21 are overlapped with each other. The length of theconnecting mechanism 2 after assembly can be altered by adjusting the overlapping length of the overlappingportions 212 of the connectingrods 21. - With reference to
Figures 1 ,4 and5 , thearmrest units 3 are symmetrically disposed on left and right sides of theconnecting mechanism 2, and are mounted pivotably and respectively to thearmrest mounting portions 211 of the connectingrods 21. Each of thearmrest units 3 includes anengaging ring 39, twocompressible rings 31, apivot limiting seat 30, a wear-resistant piece 32, anangle fixing seat 33, and anarmrest assembly 34. Since the structures of thearmrest units 3 are similar, only thearmrest unit 3 mounted to thearmrest mounting portion 211 of a left one of the connectingrods 21 will be described hereinafter. - The
engaging ring 39 is sleeved fixedly on theinner sleeve section 213 of thearmrest mounting portion 211. The twocompressible rings 31 are sleeved side by side on theinner sleeve section 213. Thepivot limiting seat 30 is sleeved fixedly and non-rotatably on thenotched part 215 of theinner sleeve section 213. The wear-resistant piece 32, theangle fixing seat 33, and thearmrest assembly 34 are sequentially sleeved on theouter sleeve section 214 of thearmrest mounting portion 211 from an inner side to an outer side thereof. Thecompressible rings 31 are disposed between theengaging ring 39 and thepivot limiting seat 30. The wear-resistant piece 32 is sandwiched between thepivot limiting seat 30 and theangle fixing seat 33. Thearmrest unit 3 further includes amounting assembly 35, afirst adjustment screw 37 threadedly and adjustably connected to theangle fixing seat 33, and a second adjustment screw 38 threadedly and adjustably connected to thearmrest assembly 34. - The
pivot limiting seat 30 has a seatmain body 301 fixedly sleeved on thenotched part 215 of theinner sleeve section 213, a protrudingportion 302 extending rearwardly from the seatmain body 301, apivot limiting member 303 projecting from the seatmain body 301 toward theangle fixing seat 33, and acoupling rod 304 coupling the protrudingportion 302 to the telescopic rod 14 (seeFigure 1 ) of the body supporting apparatus 1. The wear-resistant piece 32 is circular, and has a firstaxial hole 321 for extension of thearmrest mounting portion 211 therethrough, and aninsertion hole 322 offset from the firstaxial hole 321 for extension of thepivot limiting member 303 therethrough. - The
angle fixing seat 33 includes a circularmain body 331 defining a central hole, an axialtubular wall 339 projecting from an outer surface of themain body 331 toward thearmrest assembly 34 and defining a secondaxial hole 330 communicating with the central hole in themain body 331, and afirst stopping block 332 projecting from the outer surface of themain body 331 and surrounding an outer periphery of the axialtubular wall 339. Aninner surface 333 of themain body 331 faces the wear-resistant piece 32, and has an arcuatepivot limiting groove 334 surrounding the central hole in themain body 331. Thepivot limiting groove 334 has afirst groove end 335 and asecond groove end 336 opposite to thefirst groove end 335. Thefirst stopping block 332 has a first stoppingface 337, and a first threadedhole 338 spaced apart from the first stoppingface 337. - The
armrest assembly 34 includes anarmrest rod 340, and anarmrest board 348 adjustably mounted on thearmrest rod 340. Thearmrest rod 340 has amounting portion 341 for mounting of thearmrest board 348 thereon, and apivot connection portion 342 mounted coaxially on and pivotable relative to theangle fixing seat 33. Thepivot connection portion 342 has a thirdaxial hole 343 axially aligned with the secondaxial hole 330, and asecond stopping block 344 protruding toward theangle fixing seat 33 and surrounding the thirdaxial hole 343. The second stoppingblock 344 has a second stopping face 345 (seeFig. 5 ), and a second threadedhole 347 spaced apart from the second stoppingface 345. As shown inFigs. 2 and5 , each of the first and second adjustment screws 37, 38 is configured as a headless screw, and is inserted threadedly and adjustably into a respective one of the first and second threadedholes first adjustment screw 37 is abuttable against the second stoppingface 345, while an inner end of thesecond adjustment screw 38 is abuttable against the first stoppingface 337. How to adjust an angular position of thearmrest board 348 relative to thearmrest rod 34 is not an important aspect of this invention, so that a detailed description thereof is dispensed herewith. - The mounting
assembly 35 includes afirst cushion pad 351 sleeved non-rotatably on the notchedpart 218 of theouter sleeve section 214 of thearmrest mounting portion 211, asecond cushion pad 352 abutting against thefirst cushion pad 351, and a connectingscrew 353 extending through the first andsecond cushion pads hole 216 in theouter sleeve section 214. Through this, thearmrest assembly 34 is mounted on the connectingrod 21. - With reference to
Figures 1 to 3 , to use the armrest device of this embodiment, the overlapping length of the overlappingportions 212 of the connectingrods 21 is first adjusted according to the width of thebackrest 11 of the body supporting apparatus 1, after which the fixingmembers 24 are inserted through the throughholes 121 in therear cap 12 and two of the fixingholes 217 in one of the connectingrods 21, and are threadedly and selectively engaged with two of the fixingholes 217 in the other connectingrod 21, thereby fixedly coupling the overlappingportions 212 of the connectingrods 21. Next, thearmrest units 3 are respectively mounted and connected to thearmrest mounting portions 211 of the connectingrods 21. After assembly, thearmrest assemblies 34 of thearmrest units 3 are respectively disposed on the left and right sides of thebackrest 11 of the body supporting apparatus 1. - It should be noted that during adjustment of the overlapping length of the overlapping
portions 212 of the connectingrods 21, there is no need to detach therear cap 12 from the rear side of thebackrest 11. It is only necessary to remove the fixing screws 24, so that the connectingrods 21 can be adjustably moved within the mountingpassage 13 until the desired overlapping length of the overlappingportions 212 thereof is obtained. Hence, the armrest device of this embodiment can be adjusted according to the width of thebackrest 11 of the body supporting apparatus 1 without much effort. - With reference to
Figures 1 ,2 ,5 and6 , when it is desired to adjust the height of thearmrest board 348 of thearmrest assembly 34 of eacharmrest unit 3, one of the first and second adjustment screws 37, 38 is first threadedly adjusted to move toward an outer side of the respective first or second threadedholes face armrest assembly 34 of eacharmrest unit 3 is pivotable about thearmrest mounting portion 211 of the respective connectingrod 21. When a desired angle or height of thearmrest assembly 34 is reached, the other one of the first and second adjustment screws 37, 38 is threadedly adjusted to move further into the respective first or second threadedhole face face armrest assembly 34 of eacharmrest unit 3 cannot pivot further, and is retained at the desired angle or height. During adjustment, because thefirst cushion pad 351 is sleeved non-rotatably on theouter sleeve section 214 of thearmrest mounting portion 211 of the respective connectingrod 21, and because the connectingscrew 353 presses thesecond cushion pad 352 against thefirst cushion pad 351, thearmrest assembly 34 is not only mounted coaxially and pivotably to thearmrest mounting portion 211 of the respective connectingrod 21, but also the connectingscrew 353 is not likely to loosen during the pivot movement of thearmrest assembly 34. - With reference to
Figure 7 , in combination withFigures 1 ,2 and5 , when a user desires to enter or exit the body supporting apparatus 1 from a single side thereof, thearmrest assembly 34 of one of thearmrest units 3 is pivoted upward and rearward. That is, when the user pulls thearmrest assembly 34, because the first and second adjustment screws 37, 38 respectively abut against the second and first stoppingblocks armrest assembly 34 drives theangle fixing seat 33 to pivot along with thearmrest assembly 34. When thepivot limiting member 303 abuts against thesecond groove end 336 of thepivot limiting groove 334 of theangle fixing seat 33, theangle fixing seat 33 and thearmrest assembly 34 cannot pivot further. At this moment, thearmrest unit 3 is moved from a horizontal arm-resting position, as shown in solid lines inFigure 7 , to a vertical non-resting position, as shown in phantom lines inFigure 7 . - In other words, when the armrest device of this embodiment is in normal use, because the compressible rings 31, the
pivot limiting seat 30, the wear-resistant piece 32, theangle fixing seat 33 and thearmrest rod 340 of thearmrest assembly 34 of eacharmrest unit 3 are disposed tightly close to each other, and because thepivot limiting member 303 is inserted into thepivot limiting groove 334 of theangle fixing seat 33 and abuts against thefirst groove end 335 thereof, eacharmrest unit 3 is disposed in the horizontal arm-resting position at this time, and thearmrest assembly 34 thereof is retained at a fixed angle for an arm of the user to rest thereon. - When it is desired to adjust the height of the
armrest board 348 of thearmrest assembly 34, the first and second adjustment screws 37, 38 are simply rotated. Further, when it is desired to enter or exit the body supporting apparatus 1, thearmrest assemblies 34 of thearmrest units 3 are simply pulled upward and rearward to drive theangle fixing seat 33 to move upward therealong. Hence, the armrest device of this invention not only has a novel structure, but also can be adjusted according to the requirement of the body supporting apparatus 1. That is, the width between thearmrest units 3 can be adjusted so that the armrest device of this invention can be mounted to the body supporting apparatus 1 with different widths. The purpose of easy manufacturing and assembling can thus be achieved. Simultaneously, the width between thearmrest units 3 and the heights of thearmrest units 3 can be adjusted to cope with the different stature of users to thereby enhance use comfort.
Claims (7)
- An armrest device comprising:a connecting mechanism (2) including two connecting rods (21) and at least one fixing member (24), each of said connecting rods (21) having an armrest mounting portion (211) and an overlapping portion (212) connected to said armrest mounting portion (211), said overlapping portions (212) of said connecting rods (21) being overlapped with each other, the overlapping length of said overlapping portions (212) being adjustable, said at least one fixing member (24) detachably interconnecting said overlapping portions (212) of said connecting rods (21); andtwo armrest units (3) mounted pivotably and respectively to said armrest mounting portions (211) of said connecting rods (21),characterized in that said overlapping portion (212) of each of said connecting rods (21) has a plurality of fixing holes (217) spaced apart from each other along the length of said overlapping portion (212), and said at least one fixing member (24) includes two said fixing members (24) extending through two of said fixing holes (217) in one of said connecting rods (21) and selectively engaging two of said fixing holes (217) in the other one of said connecting rods (21).
- The armrest device as claimed in Claim 1, characterized in that each of said armrest units (3) includes an angle fixing seat (33) mounted on said armrest mounting portion (211) of a respective one of said connecting rods (21), an armrest assembly (34) mounted on said armrest mounting portion (211) of the respective one of said connecting rods (21) and pivotable relative to said angle fixing seat (33), a first adjustment screw (37) threadedly and adjustably connected to said angle fixing seat (33), and a second adjustment screw (38) threadedly and adjustably connected to said armrest assembly (34), said angle fixing seat (33) having a first stopping face (337) abuttable against said second adjustment screw (38), said armrest assembly (34) having a second stopping face (345) abuttable against said first adjustment screw (37).
- The armrest device as claimed in Claim 2, characterized in that:said armrest mounting portion (211) of each of said connecting rods (21) includes an inner sleeve section (213) connected to said overlapping portion (212), and an outer sleeve section (214) connected to said inner sleeve section (213) opposite to said overlapping portion (212), said inner sleeve section (213) having a notched part (215) adjacent to a junction between said inner and outer sleeve sections (213, 214),said angle fixing seat (33) is sleeved rotatably on said outer sleeve section (214) and further has an axial hole (330) and a pivot limiting groove (334) surrounding said axial hole (330), said pivot limiting groove (334) having a first groove end (335) and a second groove end (336) opposite to said first groove end (335), andeach of said armrest units (3) further includes a pivot limiting seat (30) fixed to said notched part (215) of said inner sleeve section (213) of the respective one of said connecting rods (21), said pivot limiting seat (30) having a pivot limiting member (303) movably extending into said pivot limiting groove (334) of said angle fixing seat (33), each of said armrest units (3) being disposed in a horizontal arm-resting position when said pivot limiting member (303) abuts against said first groove end (335) of said pivot limiting groove (334), and being disposed in a vertical non-resting position when said pivot limiting member (303) abuts against said second groove end (336) of said pivot limiting groove (334).
- The armrest device as claimed in Claim 3 characterized in that said armrest assembly (34) of each of said armrest units (3) includes an armrest rod (340), and an armrest board (348) mounted on said armrest rod (340), said armrest rod (340) having a pivot connection portion (342) mounted coaxially on said angle fixing seat (33), each of said armrest units (3) further including an engaging ring (39) sleeved engagingly on said inner sleeve section (213) of the respective one of said connecting rods (21), at least one compressible ring (31) disposed between said engaging ring (39) and said pivot limiting seat (30), and a wear-resistant piece (32) sandwiched between said pivot limiting seat (30) and said angle fixing seat (33).
- The armrest device as claimed in Claim 4, characterized in that said connecting mechanism (2) further includes two reinforcing plates (23), and a plurality of fixing screws (22) fixing said reinforcing plates (23) on said overlapping portions (212) of said connecting rods (21), respectively, said reinforcing plates (23) being respectively proximate to said inner sleeve sections (213) of said armrest mounting portions (211) of said connecting rods (21).
- The armrest device as claimed in Claim 5, characterized in that each of said armrest units (3) further includes a mounting assembly (35) mounting said armrest assembly (34) on the respective one of said connecting rods (21), said mounting assembly (35) including a first cushion pad (351) sleeved non-rotatably on said outer sleeve section (214) of said armrest mounting portion (211), a second cushion pad (352) abutting against said first cushion pad (351), and a connecting screw (353) extending through said first and second cushion pads (351, 352) and threadedly engaging said outer sleeve section (214) of the respective one of said connecting rods (21).
- The armrest device as claimed in Claim 1, characterized in that said armrest mounting portion (211) of each of said connecting rods (21) includes an outer sleeve section (214), and a connecting hole (216) extending axially and inwardly from an outer end of said outer sleeve section (214), each of said armrest units (3) further including an armrest assembly (34), and a mounting assembly (35) mounting said armrest assembly (34) on the respective one of said connecting rods (21), said mounting assembly (35) including a first cushion pad (351) sleeved non-rotatably on said outer sleeve section (214) of said armrest mounting portion (211), a second cushion pad (352) abutting against said first cushion pad (351), and a connecting screw (353) extending through said first and second cushion pads (351, 352) and threadedly engaging said connecting hole (216) in said outer sleeve section (214) of the respective one of said connecting rods (21).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW102224945U TWM481655U (en) | 2013-12-31 | 2013-12-31 | Handrail apparatus |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2888974A1 EP2888974A1 (en) | 2015-07-01 |
EP2888974B1 true EP2888974B1 (en) | 2016-10-05 |
Family
ID=51723786
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14198234.8A Active EP2888974B1 (en) | 2013-12-31 | 2014-12-16 | Armrest device |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2888974B1 (en) |
CN (1) | CN204071284U (en) |
TW (1) | TWM481655U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11872166B2 (en) | 2019-01-21 | 2024-01-16 | Linet Spol. S R.O. | Height adjustable armrest of a medical chair |
US12042448B2 (en) | 2019-01-21 | 2024-07-23 | Linet spol, s r.o. | Height adjustable armrest of a medical chair |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104840316B (en) * | 2015-05-22 | 2017-03-15 | 浙江全球跑电动轮椅有限公司 | A kind of electric wheelchair assist grip mounting structure |
DE102017110492A1 (en) * | 2017-05-15 | 2018-11-15 | Bock 1 Gmbh & Co. Kg | Armrest, especially for an office chair |
CN107596489A (en) * | 2017-09-05 | 2018-01-19 | 南昌浩牛科技有限公司 | A kind of medical injector device with rest and amusement function |
CN109808761B (en) * | 2019-03-18 | 2024-02-27 | 安维车件(厦门)有限公司 | Angle-adjustable armrest device |
CN112141243B (en) * | 2020-10-22 | 2024-11-01 | 张基才 | Handrail rotation structure, operation method thereof, motorcycle safety protection device and motorcycle |
CN115306097B (en) * | 2022-07-04 | 2023-09-26 | 中国建筑装饰集团有限公司 | Detachable handrail structure of unit plate and construction method |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5009467A (en) * | 1989-05-30 | 1991-04-23 | Mccoy David C | Adjustable armrest for chair |
US6164725A (en) * | 1999-03-09 | 2000-12-26 | Santa Cruz; Cathy D. | Detachable passenger arm rest for two wheeled vehicles |
US6508513B1 (en) * | 2001-12-21 | 2003-01-21 | Blondell Hall | Portable arm rest |
US7080885B2 (en) * | 2003-11-18 | 2006-07-25 | Kerr Corporation | Task chair |
-
2013
- 2013-12-31 TW TW102224945U patent/TWM481655U/en not_active IP Right Cessation
-
2014
- 2014-08-28 CN CN201420490377.5U patent/CN204071284U/en not_active Expired - Lifetime
- 2014-12-16 EP EP14198234.8A patent/EP2888974B1/en active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11872166B2 (en) | 2019-01-21 | 2024-01-16 | Linet Spol. S R.O. | Height adjustable armrest of a medical chair |
US12042448B2 (en) | 2019-01-21 | 2024-07-23 | Linet spol, s r.o. | Height adjustable armrest of a medical chair |
Also Published As
Publication number | Publication date |
---|---|
TWM481655U (en) | 2014-07-11 |
CN204071284U (en) | 2015-01-07 |
EP2888974A1 (en) | 2015-07-01 |
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