CN2261765Y

CN2261765Y - Adjuster for chair armrest

Info

Publication number: CN2261765Y
Application number: CN96204521U
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: 1997-09-10
Anticipated expiration: 2006-03-08

Abstract

The utility model relates to an adjuster for chair armrests which comprises a location base installed on the component of an armrest. A concentric circle hole is arranged on one side of the location base, and combines a connecting base pivoted on a tilting base through a setting element. The tilting base is pivoted at the upper end of the connecting base by a pin axle. A slipping base with an armrest part is installed on the tilting base. A flush-fitting part and two support board parts are arranged on the connecting base. A perforation corresponding to the hole is arranged in the flush-fitting part. A ball body which is constantly pressed by an elastic element is actively arranged in the perforation. When the armrest part impresses swinging movement, the connecting base is driven to rotate by taking the setting element as a pivot. The ball body on the connecting base can also move and position in different holes.

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 inclination luffing angle.

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, does suitably to adjust 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 aforementioned disappearance, the applicant once developed a kind of armrests that can just adjust as No. the 5318347th, United States Patent (USP) case in the period of one nine nine four, the aforementioned patent case mainly is to extend upward a vertical component effect on a support that is fixed on chair tool cushion bottom, most 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.

In addition, during general clerical workforce's 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, and is special more obvious in the operation of computer, though the handrail height of aforementioned patent case can be adjusted, but still can't make handrail comply with the needs of each job specification when being to use, adjust and make the most suitably.

This reality is made the adjusting device that novel purpose is to provide the Chair armrest of a kind of adjustable arm rotation direction and front and back position.

Principal character of the present utility model is: the adjusting device of this Chair armrest is installed with a positioning seat on the armrest assembly of chair tool, this positioning seat one side is provided with most and is concentrically ringed hole, and in borrowing a setting element to be hubbed at a Connection Block on the inclined seat on the positioning seat in conjunction with one, being provided with one on this Connection Block movably can be shifted between the edge, hole of positioning seat and the permanent ball bead that compressed by a flexible member, the slidably sheathed slip base that can adjust front and back position above inclined seat, form an armrest portion on this slip base for the elbow storing, borrow the application of force to swing this armrest portion, and drive this Connection Block is the fulcrum turn with the setting element, simultaneously, the ball bead running fix of borrowing Connection Block is on the different holes of positioning seat, reach and adjust handrail direction and front and back position, can cosily abut against for the user of different operating character.

Adjusting device of the present utility model is assembled in chair and has the armrest assembly top, comprise a positioning seat that is installed on the armrest assembly, these positioning seat pedestal central authorities wear one first locating hole, and are the center of circle with this first locating hole, are provided with a plurality of equally spaced holes in pedestal one side; Frame is established a Connection Block above positioning seat, this Connection Block has one smooth and two frame plate portion that extends to this smooth portion, this smooth be provided with one with the axial second corresponding locating hole of first locating hole, and with the corresponding perforation of hole on the positioning seat, in perforation, be provided with the ball bead that a perseverance is compressed by a flexible member movably, have on this flexible member one with axial the 3rd corresponding locating hole of this second locating hole, borrow a setting element to be through at aforementioned the 3rd, two, one locating hole, come in conjunction with Connection Block and positioning seat; The Connection Block top borrows a backing pin shaft to be pivoted with an inclined seat, and a sheathed slidably slip base on this inclined seat also is assembled with the armrest portion of putting for elbow on this slip base; When user's elbow by being located in the armrest portion and during application of force swing, can drive Connection Block indirectly is that fulcrum is executed with the setting element, simultaneously, the ball bead on the Connection Block is also removable and be positioned on the different holes of positioning seat, to reach the purpose of adjusting handrail direction and front and back position.

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 schematic diagram that turns to 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 tilt adjustments schematic diagram 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, this armrest assembly 1 comprises the support 11 that one one end is fixed on chair tool cushion lower end, an and sheathed height adjustable start body 12 on support 11 tops, these start body 12 tops form opening room 121 up, extend the ear 122 of two correspondences at room 121 peripheries, first screw 123 towards upper shed respectively is set in each ear 122.Above room 121, establish a location-plate 13, these location-plate 13 centre are provided with a through hole 130, around through hole 130, respectively be provided with a spliced eye 131, and wear one second screw 132 respectively in location-plate 13 two side ends, respectively borrow a screw rod 133 to wear again and lock in first and second corresponding screw 123,132, location-plate 13 is installed on the room 121.And this adjusting device comprise a positioning seat 2, Connection Block 3, inclined seat 4, slip base 5, one reply assembly 6 and a pendulum assembly 7.

The pedestal bottom surface of this positioning seat 2 extend be provided with four will corresponding projection 20 with the spliced eye 131 of location-plate 13, borrow this projection 20 can block in people's spliced eye 131, and the pedestal that makes this positioning seat 2 is positioned at location-plate 13 tops, in design, this positioning seat 2 also can directly be installed on the room 121 of armrest assembly 1.The pedestal central authorities of this positioning seat 2 are provided with the through hole 130 axial first corresponding locating holes 21 with this location-plate 13, side forms the expansion section 22 of a circular arc respectively before and after pedestal, with this first locating hole 21 is the center of circle, and on the end face of each expansion section 22, being provided with a row with the hole 220 of equidistant from distance arc shooting, 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, one smooth 30 of tool and a pair of frame plate portion 31 that extends to smooth 30 and left and right sides correspondence on this Connection Block 3, 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 above-mentioned 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, establish a pad 351 at flexible member 35 and smooth 30 folders, above flexible member 35, be provided with a pad 352 and a nut 353 more in order, borrow a setting element 36 to be located in aforesaid nut 353 in order, 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.In addition, running through first lockhole 310 of a pair of horizontal correspondence in the two frame plate portions 31, is the center with first lockhole 310, forms two highly diminishing conical surfaces 311,312 in two frame plate portions 31 respectively.Be connected in series hole 300 and offer one with 34 of perforation smooth 30 posterior edges.

This inclined seat 4 is provided with a pair of and first lockhole 310 to the second corresponding lockhole 40 near centre, and wears therebetween by means of one first lock shaft 41, and the pedestal of this inclined seat 4 is erected in the two frame plate portions 31 of Connection Block 3.

This slip base 5 is sheathed on the inclined seat 4, it forms a downward opening chute 50 on pedestal, be bent to form corresponding lean against part 51 in these chute 50 bottoms two side direction, set up therebetween for inclined seat 4, extend to form a blind end 52 in chute 50 rear ends, front end then is an open end 53, and a pair of the 4th lockhole 54 is offered in the position on the 53 side arm walls of open end, and chute 50 top panel form an armrest portion 55.

This answer assembly 6 comprises the outer tube body 62 of the body of rod 61 that a card extension portion 60 that is installed in inclined seat 4 rear ends and is the grab shape, can be located in the serial connection hole 300 of Connection Block 3,300 bottoms, serial connection hole that are fixedly arranged on Connection Block 3 and the fixed cover 63 that correspondence is arranged at the body of rod 61 bottoms.Offer a fluting 600 corresponding to the serial connection hole 300 of Connection Block 3 in this card extension portion 60, this fluting 600 can wear for the body of rod 61 correspondences; The top of this body of rod 61 has a face 610 that supports that can corresponding fasten on fluting 600, and the peripheral spiral shell in bottom is provided with screw thread 611; Provided a hole post 620 in this outer tube body 62, formed a stationary plane 621 corresponding to serial connection hole 300 in these hole post 620 1 ends, be positioned at hole post 620 a spiral spring 622 is set, this spring 622 can wear for the body of rod 61; This fixed cover 63 is the shapes that cooperate outer tube body 62, the external diameter of these fixed cover 63 bodies is identical with the aperture of this outer tube body 62, the place is provided with a screw 630 that cooperates with the screw thread 611 of the body of rod 61 in an end, can corresponding be fixed at the bottom of this body of rod 61, and this spring 622 is fastened on the inside of outer tube body 62; In design of the present utility model, above-mentioned answer assembly is not a principal character of the present utility model.

This pendulum assembly 7 comprises the wrist seat 71 that a pendulum seat 70 and and armrest portion 55 form complete handrail, this pendulum seat 70 is assembled in slip base 5 leading edges, and offer the 5th pin-and-hole 701 of a pair of the 4th pin-and-hole 54 correspondences downwards on the sidewall 700 that pedestal extends, and borrow one the 6th bearing pin 72 to plug therebetween, pendulum seat 70 can be assembled in the place ahead, slip base 5 top, and this wrist seat 71 is the curved arc shape, is fixed on pendulum seat 70 tops and with its swing; In design of the present utility model, this pendulum assembly 7 neither principal character of the present utility model.

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, elasticity 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 lock in room 121 tops of armrest assembly 1 admittedly again.The card extension portion 60 that to reply assembly 6 more respectively is installed in the rear end of inclined seat 4, make the stationary plane 621 of this outer tube body 62 be fixedly arranged on smooth 30 bottom surface of Connection Block 3, the serial connection hole 300 that makes the hole post 620 of outer tube body 62 axially align Connection Block 3 simultaneously, again the body of rod 61 is worn in regular turn this card extension portion 60 fluting 600, Connection Block 3 serial connection hole 300 and pass the spring 622 of the hole post 620 that is positioned at outer tube body 62, the screw thread 611 with the body of rod 61 is locked in the screw 630 of fixed cover 63 at last.Then, be positioned at sheathed this slip base 5 in inclined seat 4 tops, on above-mentioned slip base 5 open end 53 forward, utilize the 6th bearing pin 72 these pendulum seats 70 of assembling, be positioned at pendulum seat 70 tops and set firmly wrist seat 71 again, form armrest portion 55 in slip base 5 tops, the assembling of aforementioned wrist seat 71 and armrest portion 55 can form a complete handrail for user's elbow and wrist storing.

Shown in Fig. 2,3, when the present embodiment desire is adjusted the direction of elbow position, hand is placed on armrest portion 55 and wrist by in the portion 71, 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 at any time at any time according to need whereby.

Cooperate shown in Fig. 4,5, when present embodiment when adjusting the front and back position of the armrest portion 55 of placing for elbow, push away slip base 5 but draw before the application of force or detain, just can make slip base 5 is the central line displacement with inclined seat 4; When if the wrist height is inappropriate after adjustment, can the 6th slightly axle 72 be a spot wobble, make it not only can the front and back position adjustment, and can make wrist reach best placement state; Also wrist seat 71 directly can be installed in this slip base 5 front ends in addition, this chamber seat 71 can only be moved forward and backward along with slip base 5.

Shown in Fig. 2,6, when the present embodiment desire is adjusted the angle of inclination of armrest portion 55, can press down the front end of slip base 5, the front end that drives inclined seat 4 is moved down, at this moment, the rear end of inclined seat 4 then upwarps liter, and then drive card extension portion 60 and up move, at this moment, can drive indirectly on this body of rod 61 and move, also make on this fixed cover 63 simultaneously and move, and this spring 622 is produced compression, and when the downforce of these slip base 5 front ends disappears, the elastic force of spring 622 by compression to reply, drive whole handrail and return back to original state, reach the function that automatically replies.

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 55, also can arbitrarily adjust the pendulum angle of wrist, simultaneously, the direction of armrest portion 55 and angle of inclination all can be adjusted because of the assembling of 4 of positioning seat 2, Connection Block 3 and inclined seat, and borrow replying assembly 6 can add handrail after the inclination to arrive original state again, so that the handrail that is made of armrest portion 55 and wrist seat 71 can comprehensively be adjusted, to comply with user's needs, adjust best state.

In sum, the utility model is not only borrowed positioning seat 2 after assembling, Connection Block 3, the cooperation that inclined seat 4 and slip base are 5, can reach turn to and the front and back position adjustment easy, purpose easily, and borrow replying assembly 6 makes the handrail after the inclination can return back to original state, add for the placement that makes hand is more comfortable again and pendulum assembly 7, also can reach angle of inclination, location and the adjustable effect in wrist position, offer the elbow lay down location of user's the best, use hand indefatigability and comparatively comfortable when allowing the user work with the user who complies with various different needs.

Claims

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

This positioning seat is installed on the armrest assembly, wears one first locating hole on the pedestal of this positioning seat, and is the center of circle with this first locating hole, is provided with the hole of row's equidistant from distance in pedestal one side;

This Connection Block is erected at this positioning seat top, have one smooth and two frame plate portion that extends to this smooth portion on the pedestal 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 there is a setting element to be through at the 3rd, two, one locating hole comes in conjunction with this Connection Block and positioning seat;

This inclined seat is hubbed on the Connection Block top with a backing pin shaft; And

This slip base is placed on this inclined seat slidably, also is assembled with the armrest portion of putting for elbow on it.

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

This Connection Block rear side is equiped with one and replys assembly, this answer assembly comprise one be arranged on this inclined seat rear end and in have the card extension portion of a fluting, corresponding inserted is on this fluting and wear the body of rod of this Connection Block, correspondence be installed in this Connection Block bottom and in have the outer tube body of the Kong Zhu that this body of rod of confession wears, and correspondence is arranged on the fixed cover of this body of rod bottom, be provided with the spring that this body of rod of confession penetrates in the Kong Zhu of this outer tube body, and the aperture in this outer tube body equates with the external diameter of this fixed cover, and this spring is butted in this outer tube body.

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

Pendulum assembly of assembling on this slip base, this pendulum assembly comprise one and borrow a backing pin shaft to be assembled in pendulum seat on this slip base, and one is located on this pendulum seat and is assembled into the wrist seat of handrail with this armrest portion.

4. the adjusting device of Chair armrest as claimed in claim 1 is characterized in that:

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

5. the adjusting device of Chair armrest as claimed in claim 1 is characterized in that:

The frame plate portion apical margin of this Connection Block is provided with the pin-and-hole that this bearing pin of a pair of confession wears, and the conical surface that is formed centrally two correspondences and highly progressively dwindles in this pin-and-hole being.