CN2257668Y

CN2257668Y - Adjusting device of armrest of chair

Info

Publication number: CN2257668Y
Application number: CN96204522U
Authority: CN
Inventors: 特伦斯E·吉布斯
Original assignee: Taiwan Shin Yeh Enterprise Co Ltd
Current assignee: Taiwan Shin Yeh Enterprise Co Ltd; Xinye Enterprise Co Ltd
Priority date: 1996-03-08
Filing date: 1996-03-08
Publication date: 1997-07-16
Anticipated expiration: 2006-03-08

Abstract

The utility model relates to an adjusting device of armrests of chairs, which comprises a positioning seat fixed on a component of armrests. A plurality of holes are arranged on one side of the positioning seat which is combined with a connecting seat pivoted on a tilting seat. A tilting component is assembled above the connecting seat. The tilting component comprises the tilting seat and a tooth clamping seat arranged on the connecting seat. A clamping seat which is underpropped by a spring is assembled on the tilting seat by the connecting seat. The clamping of the clamping seat and the tooth clamping seat can position a slope angle of the tilting component, and the slope angle is fixed by a stopping seat arranged on the connecting seat. A slipping seat of an armrest part is assembled above the tilting seat so that hands placed on the armrest part can adjust directions, slop angles and front and back positions.

Description

The adjusting device of Chair armrest

The utility model relates to a kind of adjusting device of Chair armrest, particularly relates to a kind of adjusting device that makes Chair armrest can turn to, adjust front and back position and angle of inclination.

Common office chair tool is in order to reach easy to use, comfortable purpose, and some can be provided with the structure of adjustment height on the chair tool, do suitable adjustment to comply with user's height, and some then can assemble handrail respectively in the cushion both sides, places to make things convenient for user's elbow; And office chair had the design of closing handrail and mostly was fixedly shape in the past, can't cooperate the user of different heights, can't reach the comfortable purpose that abuts against in the use.In order to improve aforesaid drawbacks, the applicant once developed a kind of armrests that can just adjust as No. the 5318347th, United States Patent (USP) in the period of one nine nine four, aforementioned patent mainly is to extend upward a vertical component effect on a support that is fixed on chair tool cushion bottom, a plurality of draw-in grooves and a sheathed start body are set on the vertical component effect, borrow a lever body control that is assembled on the start body, adjust the height of this start body, the balustrade panel that supplies user's elbow to place then is assembled in the top of start body, borrows start body height to change the height of balustrade panel.

General clerical workforce is when operation, though suitable handrail height can provide elbow preferable abutting against, but the angle of inclination of handrail, front and back position and direction, the capital has influence on the smoothness of operation, special more obvious in the operation of computer, though the handrail height of aforementioned patent can be adjusted, the needs that still can't make handrail comply with each job specification when being to use are done optimal adjustment.

The purpose of this utility model is to provide the adjusting device of the Chair armrest of a kind of adjustable arm angle of inclination and front and back position, and the needs that make handrail can comply with each job specification are done optimal adjustment.

Another purpose of the present utility model is to provide a kind of adjusting device of adjusting the Chair armrest rotation direction.

Adjusting device of the present utility model is assembled in the armrest assembly top of chair tool, it comprises a Connection Block that is erected at this armrest assembly top, a tilt component that is located at the Connection Block top, and the slip base on the tilt component is assembled and be set in slidably in the armrest portion of a confession handrail, this is praised oblique assembly and comprises one and borrow bearing pin to be hubbed on inclined seat on the Connection Block, the latch seat and the tenon seat of a corresponding engaging are set respectively between this inclined seat and Connection Block, borrow its blocking to locate the angle of inclination of inclined seat, this tilt component can be used to adjust the angle of inclination of armrest portion, slip base then can change the front and back position of armrest portion, make for hand and can adjust its angle of inclination and front and back position, with comfortable the abutting against of the user who complies with different operating character by the armrest portion that establishes.

Accidental quality of the present utility model is: be installed with a positioning seat between the armrest assembly of chair tool and Connection Block, this positioning seat one side is provided with a plurality of concentrically ringed holes that are, and on positioning seat, borrow a setting element in conjunction with Connection Block, being provided with one on this Connection Block movably can be shifted between the hole of positioning seat and the permanent ball bead that compressed by a flexible member, borrow the application of force to swing this armrest portion, and drive Connection Block is the fulcrum turn with the setting element, simultaneously, the ball bead running fix of borrowing Connection Block reaches the purpose of adjusting handrail direction and front and back position on the different holes of positioning seat.

Be elaborated below by most preferred embodiment and accompanying drawing adjusting device to the utility model Chair armrest, in the accompanying drawing:

Fig. 1 is the three-dimensional exploded view of the utility model preferred embodiment.

Fig. 2 is the combination transverse sectional view of the utility model preferred embodiment.

Fig. 3 is the tilt adjustments schematic diagram of the utility model preferred embodiment.

Fig. 4 is the combination longitudinal sectional view of the utility model preferred embodiment.

Fig. 5 is that the front and back position of the utility model preferred embodiment is adjusted schematic diagram.

Fig. 6 is the schematic diagram that turns to of the utility model preferred embodiment.

As shown in Figure 1, 2, the Chair armrest adjusting device of present embodiment is assembled in an armrest assembly 1 top of chair tool, this armrest assembly 1 comprises that one one end is fixed on the support 11 of chair tool cushion lower end, the sheathed height adjustable start body 12 in these support 11 tops, start body 12 tops form opening room 121 up, these room 121 peripheries extend the ear 122 of two correspondences, and an opening first screw 123 up respectively is set in each ear 122.Above room 121, be provided with a location-plate 13, these location-plate 13 centre are provided with a through hole 130, and around this through hole 130, respectively be provided with a spliced eye 131, location-plate 13 two side ends wear one second screw 132 respectively, respectively borrowing a screw rod 133 to wear again locks in first and second screw 123,132, so that location-plate 13 is installed on the room 121.This adjusting device comprises a positioning seat 2, Connection Block 3, a tilt component 4 and a slip base 5.

The pedestal bottom surface of this positioning seat 2 is extended and is provided with four spliced eye 131 corresponding projections 20 with location-plate 13, borrow this projection 20 can snap in the spliced eye 131, and making positioning seat 2 be positioned at location-plate 13 tops, this positioning seat 2 also can directly be installed on the room 121 of armrest assembly 1 in design.These positioning seat 2 pedestal central authorities are provided with the through hole 130 axial first corresponding locating holes 21 with this location-plate 13, the front and back side forms the expansion section 22 of a circular arc respectively, with this first locating hole 21 is the center of circle, be provided with the hole 220 of row's equidistant from distance arc shooting on the end face of each expansion section 22, this hole 220 also can only be arranged on the expansion section 22 of a side wherein in design.

This Connection Block 3 is located at positioning seat 2 tops, have one smooth 30 and a pair ofly extend and the frame plate portion 31 of left and right sides correspondence on this Connection Block 3 by smooth 30, this smooth 30 be provided with one with first locating hole, the 21 axial second corresponding locating holes 32, and it is corresponding with the hole 220 of positioning seat 2 and be provided with the perforation 34 of a ball bead 33 in it movably, the aperture of this perforation 34 is a bit larger tham the hole 220 of positioning seat 2, this smooth 30 top is provided with the flexible member 35 that a perseverance compresses this ball bead 33, as shell fragment, offer one and first on this flexible member 35, two locating

holes

21,32 the 3rd axially corresponding locating holes 350, this flexible member 35 and smooth 30 folders are established a pad 351, above flexible member 35, be provided with a pad 352 and a nut 353 more in regular turn, borrow a setting element 36 to be arranged in nut 353 in regular turn, pad 352, the 3rd locating hole 350 of flexible member 35, pad 351, second locating hole 32 of Connection Block 3, pass first locating hole 21 of positioning seat 2 and the through hole 130 of location-plate 13 again, borrow 37 lockings of a nut in setting element 36 ends at last in location-plate 13 bottoms, just Connection Block 3 and positioning seat 2 can be combined on the location-plate 13.First pin-and-hole 310 that runs through a pair of horizontal correspondence in the two frame plate portions 31 is the center with first pin-and-hole 310, forms two highly diminishing conical surfaces 311,312 in two frame plate portions 31 respectively, in the conical surface 312 terminal about the one corresponding ears 313 of extending.

This tilt component 4 comprises a latch seat 40, inclined seat 41, connecting base 42, tenon seat 43, a stop-motion seat 44 and a spring 45, this latch seat 40 is borrowed 313 of the two corresponding ears that one first bearing pin 46 is installed in Connection Block 3, forms one on these latch seat 40 pedestals towards the rear and by stop surface 400 that a plurality of latch constituted.This inclined seat 41 is provided with a pair of and first pin-and-hole, the 310 axial second corresponding pin-and-holes 410 near centre, borrow one second bearing pin 47 to wear therebetween, and inclined seat 41 is erected at 31 in the two frame plate portions of Connection Block 3, this inclined seat 41 is provided with a pair of the 3rd pin-and-hole 411 near place, rears.This connecting base 42 is assembled in inclined seat 41 near the place, rear, have one directly to abut against wall 420, this abuts against wall 420 both sides and extends a pair of pivot joint wall 421 respectively forward, two articulate walls 421 be provided with about three pairs corresponding on, in, following jack 422,423,424, should go up in the jack 422 and plug one the 3rd bearing pin 425, tenon seat 43 is hubbed on connecting base 42 tops, these tenon seat 43 bottoms are the stop surface 400 corresponding fastening ends 430 of one of projection and latch seat 40 forward, a projection 431 is given prominence at the rear, this projection 431 ammunition feed springs, 45 location and support are located at and abut against 43 of wall 420 and tenon seats, should plug one the 4th bearing pin 48 in the middle jack 423, so that connecting base 42 is installed on the inclined seat 41, then utilize one the 5th bearing pin 426 this stop-motion seat 44 that is pivoted in this time jack 424, have an outstanding location division 440 and a pulling part 441 that extends to this location division 440 on this stop-motion seat 44, this location division 440 is made of an arc surface 442 and a side grain 443, and the distance L that these arc surface 442 to the 5th bearing pins are 426 is greater than the distance L of the 5th bearing pin 426 to 443 of side grains.

This slip base 5 is set on the inclined seat 41, form a downward opening chute 50 on the pedestal, be bent to form corresponding lean against part 51 in these chute 50 bottoms two side direction, set up for inclined seat 41, borrow the blind end 52 that extends to form of plate body in chute 50 rear ends, front end then is an open end 53, and these chute 50 top panel form an armrest portion 54, and setting firmly one on this open end 53 can be for the wrist seat 55 of Wrist placing.

As shown in Figure 1, 2, present embodiment is when assembling, projection 20 with positioning seat 2 snaps in the spliced eye 131 of location-plate 13 earlier, utilize cooperating of 353,37 on setting element 36 and pad 350,351 and nut again, flexible member 35, Connection Block 3, positioning seat 2 and location-plate 13 are combined into one, and above-mentioned combination utilizes screw rod 133 to be locked in room 121 tops of armrest assembly 1 admittedly again.313 of ears that are positioned at Connection Block 3 borrow first bearing pin 46 to set firmly this latch seat 40, borrow second bearing pin 47 these inclined seat 41 of assembling in Connection Block 3 tops, above-mentioned inclined seat 41 utilizes the 4th bearing pin 48 to fix this connecting base 42 before setting up earlier, also be assembled with the tenon seat 43 and stop-motion seat 44 that to swing on this connecting base 42, this inclined seat 41 can be a spot wobble by second bearing pin 47 after the assembling, tilt, and tenon seat 43 forms engaging because of shoring of spring 45 relies on latch seat 40, be subjected to the top system of stop-motion seat 44, make this tenon seat 43 can't swing displacement backward, again this slip base 5 is set in inclined seat 41 tops at last.

As Fig. 2, shown in 3, cooperate shown in Figure 1, when present embodiment will be adjusted the angle of inclination of armrest portion 54, pulling part 441 thruster backward with this stop-motion seat 44 earlier moves, make this tenon seat 43 can swing displacement, hand is placed in the armrest portion 54 again, and application of force compacting, like this, the inclined seat 41 that is positioned at slip base 5 belows just can be fulcrum by first bearing pin 47, and along the conical surface 311 of Connection Block 3,312 swings, and borrow the elastic force of spring 45, make clamping block 43 backward displacement suitably press down this pulling part 441 again up to angle, so that arc surface 442 is pressed on the back lower place of tenon seat 43, because the distance L that aforementioned arc surface 442 to the 5th bearing pins are 426 greater than the distance L of the 5th bearing pin 426 to 443 of side grains, therefore, borrows arc surface 442 top systems can avoid tenon seat 43 to move improperly, with fixing blocking relation therebetween, at this moment, the slip base 5 of position above inclined seat 4, armrest portion 54 and wrist seat 55 can tilt simultaneously, to reach the purpose of adjusting the angle of inclination.

Shown in Fig. 4,5, when present embodiment when adjusting the front and back position of the armrest portion 54 of placing for elbow, but draw before the application of force or pusher slip base 5, just can make slip base 5 is the central line displacement with inclined seat 4.

Shown in Fig. 2,6, when present embodiment will be adjusted the direction of elbow position, hand can be placed on armrest portion 54 and the wrist seat 55, and the application of force turns to, can setting element 36 when turning to for fulcrum turns to, the ball bead 33 that is erected at this moment in the perforation 34 of Connection Block 3 also can be along with displacement, and the elastic force that overcomes flexible member 35 moves on a little, and be positioned on the hole different on the positioning seat 2 220, reach the purpose of adjusting and locating according to need whereby.

That is to say, when if the adjusting device of present embodiment is assembled on the armrest assembly 1 of height-adjustable, except the front and back position that can adjust armrest portion 54, the direction of armrest portion 54 and angle of inclination all can be adjusted because of the assembling of 4 of positioning seat 2, Connection Block 3 and tilt components, so that the handrail that is made of armrest portion 54 and wrist seat 55 can comprehensively be adjusted, need adjust best state to comply with the user.

In sum, the utility model is not only borrowed the cooperation of 5 of Connection Block 3, tilt component 4 and slip bases after assembling, can reach location angle of inclination and front and back position adjustment easily, purpose easily, and also can reach the effect that turns to for the more comfortable positioning seat that adds 2 of the placement that makes hand, offer the elbow lay down location of user's the best, with user's use of convenient various different needs.

Claims

1. a Chair armrest adjusting device can be assembled on the armrest assembly of chair tool, it is characterized in that comprising a Connection Block, a tilt component and a slip base;

This Connection Block is erected at the armrest assembly top, and the pedestal of this Connection Block forms the frame plate portion of two correspondences, runs through the pin-and-hole of a pair of horizontal correspondence in this frame plate portion respectively;

The tenon seat that this tilt component comprises that an inclined seat of borrowing a backing pin shaft to be hubbed on this Connection Block top, latch seat that is located at this Connection Block one side and has stop surface, one are fixed on that connecting base on this inclined seat, one are located on this connecting base and fastens with the stop surface of this latch seat, and one shored this tenon seat and make itself and this latch seat perseverance be the spring of clamping state;

This slip base sliding sleeve also is assembled with the armrest portion of putting for elbow on it on the inclined seat of this tilt component.

2. Chair armrest adjusting device as claimed in claim 1 is characterized in that:

This tilt component also comprises a stop-motion seat of borrowing another backing pin shaft to be hubbed on this connecting base below, have on this stop-motion seat one with this tenon seat on the corresponding location division of fastening end, and pulling part that extends to this location division, this location division is made of an arc surface and a side grain, this arc surface to the distance between bearing pin greater than this bearing pin to the distance between this side grain.

3. Chair armrest adjusting device as claimed in claim 1 is characterized in that:

Be assembled with a positioning seat with one first locating hole between this armrest assembly and Connection Block, it is the hole that the center of circle and equidistant from distance are arranged with this first locating hole that pedestal one side of this positioning seat is provided with a plurality of.

4. Chair armrest adjusting device as claimed in claim 3 is characterized in that:

Folder is established a smooth portion between the frame plate portion of this Connection Block, this smooth be provided with one with the axial second corresponding locating hole of this first locating hole, and with this positioning seat on the corresponding perforation of hole, be provided with the ball bead that a perseverance is compressed by a flexible member in this perforation movably, have on this flexible member one with axial the 3rd corresponding locating hole of this second locating hole, and borrow a setting element to be through at the 3rd, two, one locating hole, come in conjunction with this Connection Block and positioning seat.

5. Chair armrest adjusting device as claimed in claim 3 is characterized in that:

This positioning seat is to utilize a location-plate to be fixed on the armrest assembly.

6. Chair armrest adjusting device as claimed in claim 1 is characterized in that:

Front end sets firmly a wrist seat for Wrist placing on this slip base.

7. Chair armrest adjusting device as claimed in claim 1 is characterized in that:

The frame plate portion apical margin of this Connection Block is formed centrally two correspondences and the highly diminishing conical surface in pin-and-hole being.