KR102327381B1 - A armrest for chair and chair having the same - Google Patents

Abstract

The present invention relates to an armrest device for a chair with improved assembling ability and a chair having the same, and the object thereof is to combine a pad, a depth block, a with block, and a rotate block without separate components, and work shape and body condition An object of the present invention is to provide an armrest device for a chair with improved assembling property that can be easily assembled so that the front and rear positions, left and right positions and rotation angles of the armrests can be easily adjusted to be suitable for a chair and a chair having the same.
The present invention includes an arm post part connected to a seat plate or a support frame of a chair, and an arm pad part connected to a fastener of the arm post part, wherein the arm pad part has both sides of the depth block in the guide grooves in the front-rear direction of the pad are elastic. Coupled to be supported, the fastener is coupled to be elastically supported in the left and right guide holes of the depth block, the with block is inserted into the sliding groove of the depth block so that the fastener is inserted into the rotation hole, and the with block is in elastic contact As much as possible, the rotating block is fixed to the fastener,
The pad is moved in the front-back direction (L) around the depth block, the pad is moved in the left-right direction (W) centering on the fastener by the left and right guide holes of the depth block, and the with block is in elastic contact with the rotate block is configured to rotate the pad around the fastener.

Description

An armrest device for a chair with improved assembly and a chair having the same {A armrest for chair and chair having the same}

The present invention relates to an armrest device for a chair with improved assembling ability and a chair having the same. It relates to an armrest device for a chair with improved assembling ability that can be adjusted and a chair having the same.

In modern society, the amount of time people spend sitting in a chair is increasing, such as office workers working in the office and students studying at a desk. Various functional chairs are being developed and distributed to provide maximum comfort.

In general, a chair includes a seat for supporting a user's buttocks, a leg installed on the bottom surface of the seat, a backrest installed at the rear of the seat to support the user's waist (lumbar spine) and back, and a support for supporting the backrest and armrests installed on both sides of the seat to support the user's arm, and a headrest installed on the upper part of the backrest to support the user's head,

The backrest is made of a flexible or elastic material such as plastic or cloth to support the seated person's back and at the same time to be installed to be elastically bent by a certain angle to the rear, and to comfortably support the arm of the user sitting in the seat Various chairs are being developed to increase user convenience, such as changing the height and position of armrests.

The armrest installed in the conventional chair is installed so that the arm pad moves in the forward and backward directions, or is installed so that the arm pad is rotatable around one end of the arm pad. There was a problem in that the position of the armrest could not be variously changed according to the user's convenience, that is, the user's body type or the user's posture.

In addition, since the armrest of the conventional chair is configured to fix the position of the armrest by a separate fixing means whenever the position of the armrest is adjusted, it is very cumbersome to change the position of the armrest, and the number of parts is increased, thereby reducing assemblyability.

In addition, although the range of armrest position change is widened by allowing the arm pad to move forward and backward and rotate at the same time, such a conventional armrest has a very complicated internal configuration for position change, and the number of parts increases. There were several problems, such as an increase in cost.

Domestic Registered Patent Publication No. 10-1145803 (2012.05.07) Domestic Registered Patent Publication No. 10-1106095 (2012.01.09) Domestic Registered Patent Publication No. 10-0743935 (2007.07.24) Domestic Registered Utility Model Gazette Registration No. 20-0360285 (2004.08.18)

It is an object of the present invention so that the front and rear positions, left and right positions and rotation angles of the armrests can be easily adjusted to suit the work type and body condition without separate components by the mutual combination of the pad, depth block, withs block and rotate block. An object of the present invention is to provide an armrest device for a chair with improved assembling property that can be easily assembled and a chair having the same.

It is an object of the present invention to provide an armrest device for a chair with improved assembly and operability by a simple structure and mutual coupling, and a chair having the same.

The present invention includes an arm post part connected to a seat plate or a support frame of a chair, and an arm pad part connected to a fastener of the arm post part, wherein the arm pad part has both sides of the depth block in the guide grooves in the front-rear direction of the pad are elastic. Coupled to be supported, the fastener is coupled to be elastically supported in the left and right guide holes of the depth block, the with block is inserted into the sliding groove of the depth block so that the fastener is inserted into the rotation hole, and the with block is in elastic contact As much as possible, the rotating block is fixed to the fastener,

The pad is moved in the front-rear direction (L) around the depth block, the pad is moved in the left-right direction (W) centering on the fastener by the left and right guide holes of the depth block, and the with block is in elastic contact with the rotate block is configured to rotate the pad around the fastener.

The present invention consists of a simple structure in which the depth block, the withs block, and the rotate block are mutually coupled without a separate connecting part, so the configuration is very simple, the number of parts is significantly reduced, and the assembling and productivity of armrests and chairs is increased In addition, there is an effect that the production cost is reduced and the maintainability of the parts is improved.

According to the present invention, the front-rear direction, left-right direction and rotation of the pad can be achieved by simply combining the injection-molded pad, depth block, with block, and rotate block without the installation of rubber pins, rings, rollers, etc., which have been used in conventional armrest devices. In addition, there is an effect of having excellent operability and operating sensibility.

According to the present invention, the position of the pad can be quickly and easily adjusted according to the user's work type, so that the user can sit comfortably in a chair and watch work or take a break for a long time.

The present invention is such that the snap protrusion of the arm support is snap-coupled (elastic fitting) into the height limiting hole of the arm post by a one-touch method, and the up/down movement range of the arm support is limited by the coupling of the snap protrusion and the height limiting hole. In comparison with the conventional armrest device in which the range of movement in the up/down direction is limited by the installation of the bolt, there is an effect of improving assembly, operability and maintenance.

In addition, the present invention has many effects such as being able to quickly respond to a user's physical condition because the arm pad part is configured to move in the front-back direction, left-right direction, up-down direction and rotational direction.

1 is an exemplary view showing a configuration according to the present invention;
2 is an exemplary view showing the configuration of the arm pad unit according to the present invention;
3 is an exemplary view showing the configuration of the arm post unit according to the present invention;
4 is another exemplary view showing the configuration of the arm post unit according to the present invention;
5 is an exemplary view showing the configuration of a base pad according to the present invention;
6 is an exemplary view showing the configuration of a depth block (DEPTH block) according to the present invention;
7 is an exemplary view showing the configuration of a with block (WIDTH BLOCK) according to the present invention
8 is an exemplary view showing the configuration of a rotate block according to the present invention;
9 is an exemplary view showing an assembling process of the arm pad unit according to the present invention;
10 is an exemplary view showing the assembly configuration of the arm pad unit according to the present invention;
11 is an exemplary view showing the configuration of a locking unit according to the present invention;
12 is an exemplary view showing an operating state of the locking unit according to the present invention;
13 is an exemplary view showing the forward and backward movement of the arm pad part according to the present invention;
14 is an exemplary view showing the left and right movement of the arm pad part according to the present invention;
15 is an exemplary view showing the rotation operation of the arm pad unit according to the present invention;
16 is an exemplary view showing the configuration of a chair according to the present invention;

1 is an exemplary view showing a configuration according to the present invention, FIG. 2 is an exemplary view showing a configuration of an arm pad unit according to the present invention, FIG. 3 is an exemplary view showing a configuration of an arm post unit according to the present invention, FIG. 4 is another exemplary view showing the configuration of the arm post unit according to the present invention, Figure 5 is an exemplary view showing the configuration of the base pad according to the present invention, Figure 6 is the configuration of the depth block (DEPTH BLOCK) according to the present invention 7 is an exemplary diagram showing the configuration of a with block according to the present invention, FIG. 8 is an exemplary diagram showing the configuration of a rotate block according to the present invention, and FIG. 9 is an exemplary diagram showing the configuration of a rotate block according to the present invention Fig. 10 is an exemplary view showing the assembly configuration of the arm pad unit according to the present invention, Fig. 11 is an exemplary view showing the configuration of the locking unit according to the present invention, and Fig. 12 is this view An exemplary view showing the operation state of the locking unit according to the present invention, FIG. 13 is an exemplary view showing the forward and backward movement of the arm pad unit according to the present invention, and FIG. 14 is an exemplary view showing the left and right direction movement of the arm pad unit according to the present invention. , Figure 15 is an exemplary view showing the rotation operation of the arm pad unit according to the present invention,

The present invention includes an arm post unit 200 connected to a seat plate or support frame of a chair, and an arm pad unit 100 connected and installed to a fastener 211 of the arm post unit, wherein the arm pad unit 100 includes: , the depth block 120 is coupled so that both sides are elastically supported in the front and rear guide grooves 161 of the pad 110, and the fastener 211 is elastically supported in the left and right guide holes 126 of the depth block, , Rotate block so that the with block 130 is inserted into the sliding groove 125 of the depth block 120 so that the fastener 211 is inserted and coupled into the rotation hole 134 , and is in elastic contact with the with block 130 . (140) is fixed to the fastener 211,

The pad 110 is moved in the front-rear direction (L) around the depth block 120 , and the pad 220 is moved around the fastener 211 by the left and right guide holes 126 of the depth block 120 . It is moved in the left and right direction (W), and is configured to rotate and move the pad 110 around the fastener 211 by elastic contact between the with block 130 and the rotate block 140 .

That is, in the present invention, as shown in FIGS. 1 to 4 , the arm post unit 200 connected to the seat plate 300 or the support frame 400 of the chair, and the fastener 211 of the arm post unit 200 . ) including an arm pad unit 100 that is connected and installed,

The arm pad part 100,

A pad 110 that is seated and installed on the upper end of the arm post part 200 so that the fastener 211 of the arm post part is inserted therein;

A depth block 120 in which both sides are elastically contacted and coupled to the front and rear guide grooves 161 of the pad so that the fasteners 211 of the arm post part are in elastic contact into the left and right guide holes 126;

With block 130 inserted into the sliding groove 125 provided in the depth block 120 so that the fastener 211 of the arm post part is inserted and coupled into the rotation hole 134,

Including a rotate block 140 that is fixedly installed on the fastener 211 of the arm post unit through the rotation hole 134 of the with block, and is fitted so that the with block 130 is rotatably coupled,

The pad 110 moves in the front-rear direction (L) around the depth block 120 , and the pad 110 moves in the left-right direction (W) around the with block 130 by the depth block 120 . It is configured to rotate the pad 110 around the rotate block 140 .

As shown in FIG. 16 , the arm post unit 200 is configured such that the lower side is connected to the seat plate or the support frame (the skeleton of the chair) of the chair, and the arm pad unit 100 is connected and supported at the upper side. That is, as shown in FIGS. 1 and 2 , the arm post part 200 includes an upper plate 212 formed flat so that the arm pad part 100 is slidably supported while in contact, and the upper plate ( One fastener 211 to which the arm pad part 100 is connected and installed is protruded from the 212 .

The fastener 211 is a reference part when the arm pad part 100 moves in the front-back direction (L), left-right direction (W), and rotational movement (R), as shown in FIGS. 1 and 2 . Similarly, the lower fastener 211a formed in a cylindrical or cylindrical type connected to the upper plate, and the lower fastener 211a integrally formed in a square or polygonal column type, the upper end fitted to the rotation block 140 It includes a fastener 211b and a bolt hole 211c connected to the upper/lower fasteners 211a and 211b to which the fixing bolt 150 is fastened.

That is, in the fastener 211, the lower fastener 211a is inserted into the depth block 120 and the with block 130, and the upper fastener 211b is fitted to the rotate block 140, It is integrally fixed to the rotate block 140 by a fixing bolt fastened to the bolt hole 211c. In this case, the fixing bolt may be a flange bolt or a screw.

One of the fasteners 211 is preferably protruded on the upper plate 212 in consideration of assembling property and structural durability, but interference during forward and backward movement, left and right movement, and rotation of the arm pad part 100 One or more protrusions may be formed on the top plate 212 within a range in which this does not occur.

As shown in FIGS. 1 and 2 , the pad 110 includes a base pad 160 installed to be in contact with the upper plate 212 of the female support, and a cover pad 170 coupled to the base pad 160 . ) is included.

In addition, in the pad 110, an inner pad 170a may be further installed between the base pad 160 and the cover pad 170, and the cover pad 170 is formed to have a predetermined cushion, or A cushioning material (not shown) may be further installed between the inner pad 170a and the cover pad 170 .

The base pad 160, the cover pad 170, and the inner pad 170a may be assembled to be coupled to each other by fitting of male and female projections, or may be assembled and installed using bolts, screws, etc., preferably by a fitting method. configured to be assembled.

The base pad 160 is, as shown in FIGS. 1 to 5, a front-rear guide groove 161 that is inserted and installed so that the depth block 120 is in elastic contact, and a front-rear guide groove 161 to communicate with each other. It is formed and includes an installation hole 162 formed through the bottom plate 160a so that the fastener 211 of the arm post part is inserted.

The front-back direction guide groove 161 is a space formed by a pair of support walls 161a formed to be spaced apart from each other in a longitudinal direction on the base pad 160, and a depth block has a pair of support walls 161a. The corrugated walls 161b which are in elastic contact are respectively formed.

At this time, in the corrugated wall 161b, a mountain (iron) part and a valley (yaw) part are continuously and repeatedly formed, that is, a mountain (iron) part and an acid (iron) part to face each other on a pair of support walls 161a. ) parts face each other, and the trough (yaw) part and the trough (yaw) part are formed to face each other.

The installation hole 162 has a function such that the fastener 211 is inserted and coupled to the depth block 120 , the with block 130 and the rotate block 140 , and the arm by contact with the fastener 211 . It has a function of restricting movement of the pad part 100 in the forward and backward direction (L).

As shown in FIG. 6 , the depth block 120 is integrally formed with the central block 121 into which the fastener 211 of the with block 130 and the arm post is inserted, and one side of the central block 121 . It is formed and includes a front end block 122 having elastic protrusions 124 in elastic contact with the front and rear guide grooves 161 on both sides, and a rear end block 123 integrally formed on the other side of the central block 122 . .

The central block 121 is formed in a sliding groove 125 into which the with block 130 is inserted, and the sliding groove 125 to penetrate the central block 121, and left and right in which the fastener 211 is inserted and supported. and a direction guide hole 126 .

The sliding groove 125 is further formed with a guide rail 125a that moves while being in contact with the with block 130 so that the depth block 120 is in contact with the with block 130 in the left and right direction (W). When sliding, the frictional resistance is reduced, so that the sliding of the depth block 120 is made smoothly.

The left-right guide hole 126 is to enable the left-right direction (W) movement of the depth block 120 around the weed block 130 in stages, and an elastic support piece 127 having a predetermined elastic force. A support hole 128 made of a plurality of fixing holes 128a, 128b, 128c, . ) consists of

That is, the elastic support piece 127 has a plurality of valleys 127c and ridges 127d in the direction of the support hole so as to be in close contact with the fastener 211, and the support hole 128 is formed with the elastic support piece ( A plurality of fixing holes (128a, 128b, 128c, ...) in which the fastener 211 is supported by a plurality of valleys 127c and ridges 127d provided in 147 are configured to communicate with each other.

In this case, the elastic support piece 127 may be configured such that a pair of support pieces 127a are symmetrical to each other with the cut-out groove 127b interposed therebetween, and the cut-out groove 127b includes the support hole 128 and the support hole 128 . It is formed in communication with the deformation hole 129 .

In addition, the fixing holes (128a, 128b, 128c, ...) refer to each space in which the fastener 211 is inserted into the valley portion 127c of the elastic support piece and supported in contact, and in the drawings of the present invention, there are three fixing holes. This equipped depth block is illustrated.

In the left-right guide hole 126 configured as described above, as shown in FIG. 9 , one side fixing hole of the support hole 128 is closely supported by the fastener 211 by the elastic force of the elastic support piece 127 , and , when the depth block 120 is moved in the left-right direction (W) together with the pad 110, the peak 127d of the elastic support piece 127 is in contact with the fastener 211 in the direction of the deformation hole 129 As the elastic support piece 127 is deformed, another fixing hole in the support hole moves to the fastener 211, and when the fastener 211 is positioned in the valley 127c of the elastic support piece, the elastic support piece 127. Another fixing hole is closely supported on the fastener 211 by the self-elastic force of the pad 110 , so that the pad 110 moves in the left and right direction (W) (transverse movement).

The front end block 122 has elastic protrusions 124 that are supported in contact with the front and rear guide grooves 161 of the base pad 160 are formed on both sides.

The elastic protrusion 124 is in elastic contact (contacting with elastic force) to the corrugated wall 161b provided in the front-back direction guide groove 161 of the base panel, and the pad 100 is formed with the depth block 120 as the center. It has a function of supporting so that it can be moved in the front-rear direction (L).

The elastic protrusion 124 has a predetermined elastic force and is configured to be supported in contact with the corrugated wall 161b, and the structure thereof is not limited, but as shown in FIG. The elastic hole 124a is extended to the front end block 122 so as to be provided, so that the elastic deformation of the elastic protrusion 124 is absorbed by the elastic hole 124a, that is, in contact with the corrugated wall 161b and the elastic protrusion ( When the 124 is moved, the deformation of the elastic protrusion 124 may be accommodated by the elastic hole 124a.

The rear end block 123 has a function to facilitate movement in the left and right directions (W) and rotational movement (R) of the pad 110 centered on the fastener 211, and has a central portion to have a predetermined length. The block 121 is formed to extend.

In addition, as shown in FIG. 6 , the depth block 120 further includes a plurality of elastic pieces 120a that are in elastic contact with the base pad 160 .

As shown in FIG. 10 , the elastic piece 120a is in elastic contact with the bottom plate 160a of the base pad to prevent a gap from occurring between the base pad 160 and the depth block 120, and the base pad ( 160 ) and the depth block 120 to minimize the contact area, so that the base pad 160 has a function of smoothly moving in the forward and backward directions (L). At this time, the elastic piece (120a) is preferably formed in the front end block 122 and the rear end block (123).

The with block 130 has a function of guiding the left-right direction (W) movement of the depth block 120 and a function of allowing the pad 110 and the depth block 120 to rotate in multiple stages.

The with block 130 is, as shown in FIG. 7, the outer block 131 which is inserted and installed into the sliding groove 125 of the depth block, and is formed to protrude in the receiving groove 132 of the outer block and has a fastener. 211 and an inner block 133 having a rotation hole 134 into which one side of the rotation block 140 is inserted, the inner block 133 has an outer surface formed of a plurality of rotation concave and convex grooves 133a, , on the inner surface of the inner block, that is, the inner surface 134a of the rotation hole, a pair of stopper protrusions 135 supported in contact with the rotation block 140 are protruded to be symmetrical to each other.

That is, the with block 130, the receiving groove 132 of the outer block by the inner block 133 is formed to be separated into a first receiving groove (132a) and a second receiving groove (132b), the first, 2 The outer surface of the inner block located in the receiving grooves 132a and 132b is formed with a plurality of rotation grooves 133a, and the rotation hole 134 is an upper rotation hole 134b into which one side of the rotation block 140 is inserted, and , is formed in the upper rotation hole (134b) is formed to have a lower rotation hole (134a) into which the fastener 211 is inserted.

In addition, the pair of stopper protrusions 135 are formed to be symmetrical to each other so as to be located in the upper rotation hole 134b.

At this time, as shown in FIGS. 9 and 10 , the outer block 131 has a front end surface 131a and a rear end surface 131b at the front/rear end surfaces 125b and 125c of the sliding groove 125 to assemble tolerances. It is assembled and configured so that a gap in the front-rear direction (L) does not occur between the with block 130 and the depth block 120 .

The rotate block 140 is screwed to the fastener 211 of the arm support, and has a function of supporting the base pad 160, the depth block 120, and the with block 130 to prevent separation and rotation. do .

The rotate block 140 is, as shown in FIG. 8, the central block 141 inserted into the rotation hole 134 of the with block, and the first and second accommodating grooves 132a and 132b of the with block. The first and second wing blocks 142 and 143 inserted into the are integrally formed,

The central block 141 is formed with a coupling hole 144 into which the female support fastener 211, that is, the upper fastener 211b is fitted, and the first and second wing blocks 142 and 143 are with blocks. A support protrusion 145 coupled to the rotation concave-convex groove 133a formed in the inner block 133 of 146) is formed.

In the present invention configured as described above, as shown in FIGS. 9 and 10 , the base pad 160 of the pad is seated on the upper plate 212 of the arm post part, and the front and rear guide grooves of the base pad 160 ( The depth block 120 is inserted into the 161), the with block 130 is inserted into the sliding groove 125 of the depth block, and the support protrusion 145 is inserted into the rotation concavo-convex groove 133a of the with block. After the central block 141 and the first and second wing blocks 142 and 143 of the rotate block 140 are respectively inserted into the rotation hole 134 and the first and second accommodating grooves 132a and 132b of the weeds block, Rotate block 140 is fixed to fastener 211 of the arm post part by fixing bolts 150 such as flange bolts, base pad 160, depth block 120, with block 130, rotate block 140 is assembled, and the inner pad 170 and the cover pad 170 are coupled to the base pad 160 to complete the assembly.

In the present invention assembled in this way, when a force is applied to the pad 110 in the front-rear direction (L), as shown in FIG. ), and when force is applied to the pad 110 in the left and right direction (W), as shown in FIG. 14 , the pad 120 integrally with the depth block 120 centered on the with block 130 . ) is moved in the left and right direction (W), and when a force is applied to rotate the pad 110 in the left and right direction, as shown in FIG. 15 , the with block 130 and the depth block 120 are integrated with the pad. It is rotated (R) together with (120).

At this time, the pad 110 is in elastic contact between the elastic protrusion 124 of the depth block and the corrugated wall 161b of the base pad, the left and right guide holes 126 of the depth block and the fastener 211 of the arm support part. By elastic contact, the elastic contact between the rotation concavo-convex groove 133a of the with block and the support protrusion 145 of the rotation block, the front-back direction (L), the left-right direction (W), and the rotation (R) operation are multi-staged step by step is moved

The arm post unit 200 may be configured to move up/down the arm pad unit 100 .

That is, as shown in FIGS. 1 to 4 and 16 , the arm post unit 200 includes an arm post 220 connected to the seat plate 300 or the support frame 400 and the upper end of the arm post. A fastener 211 is formed to protrude on the arm cover 230 into which the post 231 is inserted, and the top plate 212 on which the pad 110 of the arm pad part 100 is seated, and the top plate 212 . ) is fixed to the female cover 230, and the support 213 integrally formed with the upper plate 212 is inserted into the upper post 221 of the female post inserted into the female cover 230. The female support 210 and , is connected to the support 213 so as to be located between the support 213 of the arm support and the upper post 221 of the arm post to constrain/release the vertical position of the arm support 210 with respect to the arm support 210 including a locking unit 240 to

The arm support 210 has a snap protrusion 214 formed on the support 213, and the upper post 221 of the arm post has a height limiting hole 223 in which the snap protrusion 214 is inserted and caught, The arm support 210 and the arm post 220 are assembled by the combination of the height limiting hole 223 and the snap protrusion 214 , and when the arm support 210 moves in the vertical direction, the height limiting hole 223 is One side of the snap protrusion 214 is in contact with the upper/lower ends 223a and 223b, so that the up/down movement of the arm support 210, that is, the up/down movement of the arm pad part 200 is restricted. have.

The arm post 220 is formed integrally with the lower post 222 fixedly installed on the seat plate 300 or the support frame 400 and the lower post 222 as shown in FIGS. 3 and 4 and is locked. It includes an upper post 221 to which the support 213 of the arm support is connected via the part 240 .

The upper post 221 has a hollow hole 224 into which the support 213 of the arm support is inserted, a plurality of height adjustment holes 225 formed through one side to communicate with the hollow hole 224, and a height adjustment hole It includes one height limiting hole 223 having a predetermined length in the vertical direction on the other side to correspond to the 225 and penetrating through the long hole type.

The arm support 210 is, as shown in FIGS. 3, 4, 11 and 12, the upper plate 210 in which the fastener 211 is protruded, and the locking part 240 is connected and installed, and the arm and a support 213 provided with a snap protrusion 214 that is inserted and coupled into the height limiting hole 223 of the post.

The support 213 has an arm rod insertion groove 215 formed with a predetermined depth on one side thereof, a spring protrusion 216 protruding in the arm rod insertion groove 215, and positioned above the spring protrusion. The rod guide hole 217 protruded in the arm rod insertion groove 215, the locking block hole 218 formed to be positioned below the arm rod insertion groove 215, and the locking block hole 218 vertically A spring block 219 provided in the center of one side of the locking block hole 218 across, and a snap protrusion 214 extended and provided with a predetermined elastic force in the spring block so as to be inserted into the height limiting hole 223 of the upper post. include

The snap protrusion 214 has an upper side integrally connected to the spring block 219, and a locking protrusion 214a formed at a free end is provided at the lower end, so that the arm support into the upper post 221 of the arm post. When the support 213 is inserted, the locking jaw 214a of the snap protrusion is inserted (snap-coupled) into the height limiting hole 223 by the elastic force, so that the assembly of the armpost 220 and the armsertope 210 is easy. In addition to making it easy, when the arm support 210 moves in the vertical direction (Y) with respect to the arm post 220, the locking jaw 214a of the snap protrusion closes the height limiting hole 223 of the upper post. It moves vertically and comes into contact with the upper/lower ends 223a and 223b of the height limiting hole, so that the vertical (Y) movement range of the arm support 210 to which the arm pad part 100 is connected is limited. do.

The arm cover 230 prevents external exposure of the height adjustment hole 225 and the height limit hole 223 of the arm post, and foreign substances are introduced into the coupling portion of the arm post 220 and the arm support 210 . It has a function of stably adjusting the height of the arm pad part 100 by preventing it from happening.

The arm cover 230 has a receiving hole 231 into which the upper post 221 of the arm post having the height adjustment hole 225 is formed, and the upper plate 212 of the arm support is fastened and fixed. That is, the arm cover 230 is moved integrally with the arm support 210 .

As shown in FIGS. 11 and 12, the locking part 240 includes an arm rod 241 that is inserted and installed to be vertically movable into the support 213 of the arm support, and the arm rod 241 is elastic in the vertical direction. The load spring 242 installed between the support 213 and the arm rod 241 of the arm support to be supported, and the locking block 243 inserted into the locking block hole 218 provided in the support 213 of the arm support. ) and a locking spring 244 installed between the locking block 243 and the support 213 so that the locking block 243 is elastically supported.

The arm rod 241 includes a guide hole 245 into which a rod guide member 217 provided in the support of the arm support is inserted, and a spring installation hole 249 into which the load spring 242 is inserted and installed, and the arm is formed through the arm. The rod body 246 inserted and installed into the arm rod insertion groove 215 of the support, the lever 247 integrally formed on the upper side of the rod body 246 and protruding to the outside of the arm cover 230, and the rod body ( 246) is connected to the lower side and includes an opening and closing protrusion 248 for limiting movement of the locking block 243 by opening and closing one side of the locking block hole 218.

In the arm rod 241 configured as described above, the guide fixture 240a is fastened to the rod guide hole 217 of the female support penetrating the guide hole 245 of the arm rod, thereby preventing separation from the female support 210 . it is made to be In this case, a flange bolt may be applied to the guide fixture 240a.

The rod spring 242 is installed between the arm rod 241 and the support 213 of the arm support so that one side is supported by the arm rod 241, and the other side is supported by the spring protrusion 216 of the female support. The arm rod 241 is moved in the direction of the locking block hole 218 along the arm rod insertion groove 215 and has an elastic force so that one side of the locking block hole 218 is closed by the opening and closing protrusion 248 .

The locking block 243 is inserted into the height adjustment hole 225 provided in the upper post of the arm post by the elastic force of the locking spring 242 to support the upper and lower positions of the arm support 210 with respect to the arm post 220 . (locking) function is provided.

The locking block 243 includes a main block 243a having one side inserted into the height adjustment hole 225 and elastically supported to move in the height adjustment hole 225 direction by a locking spring 244, and the main block 243a ) integrally projecting on both sides of the main block 243a and includes an auxiliary block 243b protruding to both sides of the spring block 219 when the main block 243a is moved while compressing the locking spring 244 .

That is, the locking block 243 is formed in a 'c'-shaped planar structure in which auxiliary blocks 243b are formed on both sides of the main block 243a, and the main block 243a is inserted into the height adjustment hole 225. One side (one side inserted and coupled into the height adjustment hole) is formed as a curved surface or an inclined surface to facilitate insertion and separation of the .

One side of the locking spring 244 is supported in contact with the locking block 243, and the other side is supported in contact with the spring block 219 of the female support, so that the locking block 243 is moved in the direction of the height adjustment hole 225. It has a predetermined elastic force.

The locking part 240 configured as described above, as shown in FIG. 12, the arm rod 241 by the elastic force of the rod spring 242 moves along the arm rod insertion groove 215 in the locking block hole 218 direction. One side of the locking block hole 218 opened on both sides of the spring block 219 is closed by the opening and closing protrusion 248 of the arm rod, and one side of the locking block hole 218 is closed. The horizontal movement of the locking block 243 is blocked by the protrusion 248 so that the position of the locking block 243 in the height adjustment hole 225 of the arm post 220 is fixed, and the height position of the arm support 210 is is fixed

In addition, when the locking part 240 pulls the lever 247 provided on the arm rod upward, the rod spring 242 is compressed, and the arm rod 241 moves along the arm rod insertion groove 215 to the arm pad part. (100) direction, and according to the movement of the arm rod 241, the opening and closing protrusions 248 of the arm rod are also upwardly moved in the direction of the arm pad part 100, and the locking block holes located on both sides of the spring block 219. One side of 218 is open.

As such, when one side of the locking block hole 218 is opened and the arm pad part 100 is raised upward, the locking block 243 is moved by the locking spring 244 by contact with the raised arm support 210 . ) is compressed and moved so that the end of the auxiliary block 243b of the locking block protrudes to the outside through one side of the open locking block hole 218, and the main block 243a of the locking block from the height adjustment hole 225) this will come off That is, the locking of the arm support 210 is automatically released, so that the height position of the arm pad part is adjusted. At this time, the upper and lower movement range of the arm support 210 is limited by the snap protrusion 214 .

FIG. 16 is an exemplary view showing the configuration of a chair according to the present invention, and the chair 800 in which the armrest device 500 is installed is shown so as to be connected to the seat plate part 300 and the support part 400 .

The present invention is not limited to the specific preferred embodiments described above, and without departing from the gist of the present invention as claimed in the claims, anyone with ordinary skill in the art to which the invention pertains can make various modifications. Of course, such modifications are intended to be within the scope of the claims.

In addition, the terms described in the present invention are for distinguishing one component from other components and helping the understanding of the present invention, so the components of the present invention are not limited by the described terms.

(100): arm pad unit (110): pad
(120): depth block (DEPTH BLOCK) (120a): elastic piece
(121): central block (122): tip block
(123): rear end block (124): elastic projection
(124a): elastic hole (125): sliding groove
(125a): guide rail (125b): front end
(125c): rear end (126): left and right guide holes
(127): elastic support piece (127a): support piece
(127b): incision groove (127c): bone
(127d): Obstetric (128): Support hole
(128a, 128b, 128c): fixing hole (129): deforming hole
(130): WIDTH BLOCK (131): Outer block
(132): receiving groove (132a): end receiving groove
(132b): rear end receiving groove (133): inner block
(133a): rotation concavo-convex groove (134): rotation hole
(134a): inner surface (134b): upper rotation hole
(134d): bottom rotation hole (135): stopper projection
(140): ROTATE BLOCK (141): Central block
(142): the first wing block (143): the second wing block
(144): coupling hole (145): support protrusion
(146): rotation limiting groove (150): fixing bolt
(160): base pad (160a): bottom plate
(161): front-back direction guide groove (161a): support wall
(161b): corrugated wall (162): installation hole
(170): cover pad (170a): inner pad
(200): arm post unit (210): arm support (ARM SUPPORT)
(211): fastener (211a): lower fastener
(211b): upper fastener (211c): bolt hole
(212): top plate (213): support
(214): Snap (SNAP) projection (215): Arm rod insertion groove
(216): spring projection (217): rod guide
(218): locking block hole (219): spring block
(220): arm post (221): top post
(222): lower post (223): height limiting hole
(223a): top (223b): bottom
(224): hollow hole (225): height adjustment hole
(230): female cover (231): receiving hole
(240): locking portion (240a): guide fixture
(241): arm rod (242): load spring
(243): locking block (243a): main block
(243b): auxiliary block (244): locking spring
(245): guide hole (246): rod body
(247): lever (248): opening and closing projection
(249): spring installation hole (300): seat plate
(400): support frame (leg part) (500): armrest device
(800) : chair

Claims (12)

An arm post part connected to the seat plate or support frame of the chair, and an arm pad part connected to the fastener of the arm post part, wherein the arm pad part is coupled such that both sides of the depth block are elastically supported in the guide groove in the front and rear directions of the pad. The fastener is elastically supported in the left and right guide holes of the depth block, and the with block is inserted into the sliding groove of the depth block so that the fastener is inserted into the rotation hole, and the with block is in elastic contact with the rotate block. It is fixedly installed in this fastener,
The pad is moved in the front-rear direction (L) around the depth block, the pad is moved in the left-right direction (W) centering on the fastener by the left and right guide holes of the depth block, and the with block is in elastic contact with the rotate block Doedoe configured to rotate the pad around the fastener by
The depth block 120 has a sliding groove 125 into which the with block 130 is inserted, and a left and right guide hole 126 through which the fastener 211 of the arm post part is inserted and supported in the sliding groove 125 . The central block 121 provided with this, and the front end block 122 provided with elastic protrusions 124 integrally formed on one side of the central block 121 and elastically contacting the front-back direction guide grooves 161 on both sides; It includes a rear end block 123 integrally formed on the other side of the central block 122,
The left and right guide holes 126 have a plurality of fasteners inserted and supported by the elastic support pieces 127 in which a plurality of valleys 127c and ridges 127d are continuously formed so as to be in close contact with the fasteners 211 . It consists of a support hole 128 made of a fixing hole of
With block 130, the outer block 131 which is inserted and installed into the sliding groove 125 of the depth block, and the receiving groove 132 of the outer block is a first receiving groove (132a) and a second receiving groove ( 132b) is formed to protrude in the receiving groove 132 of the outer block, and a rotation hole 134 into which the fastener 211 and one side of the rotation block 140 are inserted is formed, and a plurality of rotation grooves are formed on the outer surface. Including an inner block 133 formed of (133a),
Rotate block 140 is inserted into the central block 141 which is inserted into the rotation hole 134 of the withs block, and the first and second receiving grooves 132a and 132b of the withs block, the rotation of the with block The armrest device for a chair with improved assembly, characterized in that the first and second wing blocks 142 and 143 having the support protrusions 145 coupled to the concave-convex grooves 133a are integrally formed.
The method of claim 1 ;
The arm pad unit 100,
A pad 110 that is seated and installed on the upper end of the arm post part 200 so that the fastener 211 of the arm post part is inserted therein;
A depth block 120 in which the fasteners 211 of the arm post are in elastic contact into the left and right guide holes 126 and both sides are elastically contacted and coupled to the front and rear guide grooves 161 of the pad;
With block 130 inserted into the sliding groove 125 provided in the depth block 120 so that the fastener 211 of the arm post part is inserted and coupled into the rotation hole 134,
Assembly comprising a rotate block 140 that is fixedly installed on the fastener 211 of the arm post unit through the rotation hole 134 of the with block, and the with block 130 is rotatably fitted. Armrests for chairs with improved performance.
The method according to claim 1 or 2;
The fastener 211 is formed integrally with the lower fastener 211a and the lower fastener 211a formed in a cylindrical or cylindrical type connected to the upper plate and is formed in a square or polygonal column type to rotate the block 140. The assembly is improved, characterized in that it comprises a bolt hole (211c) to which the fixing bolt 150 is fastened by being connected to the upper fastener (211b) and the upper / lower fasteners (211a, 211b). armrests for chairs.


delete The method of claim 1 ;
The elastic support piece 127 is configured such that a pair of support pieces 127a are symmetrical to each other with the cut-out groove 127b therebetween, and the cut-out groove 127b includes the support hole 128 and the deformation hole 129. ) armrest device for a chair with improved assembly, characterized in that it is formed to communicate with.
The method of claim 1 ;
The depth block 120 is a front end block ( 122) and an armrest for a chair with improved assembly, characterized in that it is further formed on the rear end block 123.
delete delete The method of claim 1 ;
The with block 130 is formed to protrude so that a pair of stopper projections 135 are symmetrical to each other on the inner surface 134a of the rotation hole,
Rotate block 140 is an armrest device for chair with improved assembly, characterized in that the rotation limiting groove 146 is formed by inserting the stopper protrusion 135 of the with block into the center block 141 .
The method according to claim 1 or 2;
The arm post unit 200 includes an arm post 220 connected and installed to a seat plate or support frame 300 , an arm cover 230 into which an upper post 231 of the arm post is inserted, and an arm pad unit 100 . A fastener 211 is protruded on the upper plate 212 on which the pad 110 of the pad 110 is seated, and the upper plate 212 is fixedly installed to the female cover 230 and is formed integrally with the upper plate 212 . The support 213 is positioned between the arm support 210 inserted into the upper post 221 of the arm post inserted into the arm cover 230, and the support 213 of the arm support and the upper post 221 of the arm post. It is connected to the support 213 so as to include a locking part 240 for constraining/releasing the vertical position of the arm support 210 with respect to the arm support 210,
The arm support 210, a snap protrusion 214 is formed on the support 213, and the upper post 221 of the arm post is provided with a height limiting hole 223 through which the snap protrusion 214 is inserted and engaged. , the arm support 210 and the arm post 220 are assembled by the combination of the height limiting hole 223 and the snap protrusion 214, and when the arm support 210 moves in the vertical direction, the height limiting hole 223 One side of the snap protrusion 214 is in contact with the upper/lower ends 223a and 223b of the
The support 213 has an arm rod insertion groove 215 formed with a predetermined depth on one side thereof, a spring protrusion 216 protruding in the arm rod insertion groove 215, and positioned above the spring protrusion. The rod guide hole 217 protruded in the arm rod insertion groove 215, the locking block hole 218 formed to be positioned below the arm rod insertion groove 215, and the locking block hole 218 vertically A spring block 219 provided in the center of one side of the locking block hole 218 across, and a snap protrusion 214 extended and provided with a predetermined elastic force in the spring block so as to be inserted into the height limiting hole 223 of the upper post. including,
The snap protrusion 214 has an upper side integrally connected to the spring block 219, and a locking protrusion 214a having a free end is provided at the lower end thereof. .
delete A chair comprising the armrest device according to any one of claims 1, 2, 5, 6, and 9.

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