TWI751070B - Medical chair - Google Patents

Abstract

A diagnosis and treatment chair is suitable for a user to sit on, and includes a chair frame unit, a seating unit, and an armrest adjustment unit. The armrest adjusting unit also includes two armrest sets, and two front rests respectively pivoted on one side of the armrest set opposite to the seat frame unit. Each front rest piece can be rotated between a side support position and a front support position with respect to the respective armrest group. When in the side support position, each front rest piece extends parallel from the corresponding armrest group, and the front rest piece extends in parallel from the corresponding armrest group. In the supporting position, each front leaning member forms an included angle with the corresponding armrest set, and a supporting surface of each front leaning member faces the user and is suitable for the user to lean against when leaning forward. The support force when the user leans forward is provided through the front leaning pieces, and the pelvis can be used as a fulcrum, so that the pelvis is not easy to rotate, thereby achieving the effect of reducing occupational injuries.

Description

diagnosis and treatment chair

The present invention relates to an office product, in particular to a diagnosis and treatment chair.

A conventional office chair includes a chair frame, a chair cushion, a back cushion, and two armrests, whereby it is suitable for people to sit on the chair cushion for office work.

However, the aforementioned office chairs are generally suitable for sedentary office workers. If only practitioners who need to lean forward from time to time, especially dentists who may have to lean forward to inspect the patient’s mouth in detail, the aforementioned office chairs cannot provide the necessary solutions for the forward leaning. The back and waist muscles of the dentist need to be supported, and the spine and pelvis will also be subject to additional burdens, which may cause occupational injuries such as intervertebral disc herniation in the long run.

Therefore, the purpose of the present invention is to provide a diagnosis and treatment chair that can reduce occupational injuries.

Therefore, the diagnosis and treatment chair of the present invention is suitable for a user to sit on, and includes a chair frame unit, a seating unit, and an armrest adjustment unit.

The chair frame unit is supported on the ground.

The seating unit is arranged on the seat frame unit and is suitable for the user to ride on.

The armrest adjustment unit is disposed on the seat frame unit or the riding unit, and includes two armrest sets respectively disposed on the left and right sides of the seat frame unit, and two armrest sets respectively pivoted on the armrest set and opposite to the seat frame Front rest on one side of the unit. Each front resting piece has a supporting surface and can be rotated between a side supporting position and a front supporting position relative to the respective armrest group, and in the side supporting position, each front resting piece is parallel to the corresponding armrest group extending from the ground, the supporting surface faces upwards, in the front supporting position, each front leaning member forms an included angle with the corresponding armrest group, the supporting surface faces the user and is suitable for the user to lean forward when leaning forward. Depend on.

The effect of the present invention is: through two front rest members pivoted on one side of the armrest set opposite to the seat frame unit, when each front rest member is in the front support position, the support surface faces the user It is also suitable for the user to lean forward when leaning forward, so that the front leaning member provides the support force when the user leans forward, and can use the pelvis as a fulcrum, so that the pelvis is not easy to rotate, thereby reducing occupational injuries. effect.

1: Chair frame unit

11: Base

111: Chair foot

112: Extension pedal

12: Ridge Support

121: Main extension

122: Pedestal segment

123: Extension arm section

124:Pivot section

125: Back pad adjustment slot

126: Mounting slot

127: Groove

13: Back pad adjustment group

131: Kits

132: Adjust the bump

14: Wheel set

141: Wheels

2: Connection unit

21: Connection shell

211: Room

22: The first connector

221: The first body

222: Front pivot

223: The first rear fixing part

224: top fixing part

23: The second connector

231: Second Body

232: Top groove

233:Second rear fixing part

234: Rear pivot joint

235: Ridge Fixation

24: Connectors

3: Back pad

31: Back pad body

4: Ride unit

41: Chair cushion

411: Uplift

412: Side recess

42: Front and rear fixed blocks

43: Side fixing block

5: Armrest adjustment unit

51: Armrest group

511: Kit

512: Side parts

513: Kit body

514: Armrest pivot

515: Adjust the convex part

516: Armrest adjustment slot

52: Front parts

521: Support surface

53: Button Components

531: Button Pieces

532: Reply

533: Press part

534: Chimeric segment

6: Front and rear adjustment unit

61: Before and after reply

62: The first reel

63: The first link

7: Side recovery unit

711: Side Reply

712: Auxiliary Reply

X1: up and down direction

X2: left and right direction

X3: Front and rear direction

θ2: second angle

θ4: Fourth angle

L1: Central Line

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, wherein: FIG. 1 is a perspective view of a first embodiment of the diagnosis and treatment chair of the present invention, and the first embodiment In the embodiment, a front support member of an armrest group is located in a side supporting position, a first connecting seat is located in a sitting position, and a seat cushion is located in a horizontal state; FIG. 2 is an exploded perspective view of this embodiment; Fig. 3 is an incomplete exploded perspective view of a seat frame unit in the first embodiment; Fig. 4 is an incomplete perspective exploded view of a connecting unit and a front-rear adjustment unit in the first embodiment; Fig. 5 is an incomplete exploded perspective view of an armrest adjusting unit in the first embodiment; FIG. 6 is an incomplete sectional view of an armrest group in the armrest adjusting unit; FIG. 7 is another incomplete view of the armrest group 8 is a front view of the first embodiment, but in this embodiment, the front rest is located at a front support position; FIGS. 9 to 10 are each a cross-sectional view of the first embodiment, but the front rest 11 is a front view similar to FIG. 8, but the first connecting seat is in a forward tilted position, and the seat cushion is in a side tilted state; FIG. 12 to FIG. 13 are from FIG. 11 a cross-sectional view taken, but with the front rest in the side support position; FIG. 14 is a second embodiment of the examination chair of the present invention; and 15 is a schematic side view of one of the chair legs and a foot control device of the second embodiment.

1 and 2, the first embodiment of the diagnosis and treatment chair of the present invention is suitable for a user to sit on, and includes a chair frame unit 1, a connecting unit 2, a back cushion 3, a seating unit 4, and an armrest Adjustment unit 5, a front and rear adjustment unit 6 (refer to FIG. 4), and a side recovery unit 7 (refer to FIG. 9).

Before the present embodiment is described in detail, an up-down direction X1, a left-right direction X2, and a front-rear direction X3 are defined according to the orientation of the user when riding.

1, 2 and 3, the seat frame unit 1 includes a base 11 standing on the ground and defining a vertical center line L1, a ridge support frame 12 connected to the base 11, a ridge connected to the ridge The back pad adjustment group 13 of the support frame 12 and a wheel group 14 arranged on the base 11 .

The spine support frame 12 has a main extension section 121 connected to the base 11 , a base frame section 122 set on the main extension section 121 and extending along the left-right direction X2 , two connected to the left and the left of the base frame section 122 , respectively. The extension arm section 123 on the right side and can be telescopic relative to the base frame section 122 along the left-right direction X2, a pivoting section 124 extending forward from the base frame section 122, and an extension arm section 124 disposed on the main extension section 121 and extending along the The back pad adjustment groove 125 extending in the up-down direction X1, and a main extension section 121 of the base frame section 122 along the left-right direction X2 A mounting slot 126 extends and is located under the back pad adjusting slot 125 for the base frame segment 122 to be mounted on.

The back pad adjusting group 13 includes a fork-shaped sleeve member 131 extending forward from the base frame section 122 , and an adjusting protrusion 132 movably disposed in the back pad adjusting groove 125 .

The wheel set 14 includes several wheels 141 .

Referring to FIG. 4 , the connecting unit 2 includes a connecting shell 21 connected to the seat frame unit 1 and defining a chamber 211 , a first connecting seat 22 and a second connecting seat 23 disposed in the chamber 211 , and A connecting piece 24 passing through the first connecting seat 22 .

The first connecting seat 22 is pivoted to a seat cushion 41 of the seating unit 4 and the spine support frame 12 of the seat frame unit 1 , and includes a first body 221 , a first body 221 extending from the bottom surface of the first body 221 and located at The front pivot portion 222 on the front side, two first rear fixing portions 223 located behind the first body 221 , and two top fixing portions 224 extending from the top surface of the first body 221 at intervals along the front-rear direction X3 respectively.

The second connecting base 23 is fixed to the base 11 and the spine support frame 12, and includes a second body 231, a top groove 232 formed on the top surface of the second body 231, and two spaced along the left-right direction X2 A second rear fixing portion 233 disposed in the top groove 232, two rear pivoting portions 234 disposed on the top surface of the second main body 231 at intervals along the left-right direction X2, and one rearwardly extending from the second main body 231 and It is fixed to the spine fixing portion 235 of the spine support frame 12 .

The connecting piece 24 passes through the top fixing portions 224 of the first connecting seat 22 .

Referring to FIG. 2 and FIG. 9 , the back pad 3 has a back pad body 31 for connecting the adjusting bump 132 to the sleeve 131 .

Referring to FIGS. 2 , 8 and 9 , the seating unit 4 includes a seat cushion 41 connected to the seat frame unit 1 . The seat cushion 41 includes a raised portion 411 adjacent to the front end and raised upward, two side concave portions 412 respectively connected to the left and right sides of the raised portion 411 , and a bottom surface of the seat cushion 41 and spaced along the front-rear direction X3 The front and rear fixing blocks 42 are provided, and two side fixing blocks 43 are respectively located on the left and right sides of the bottom surface of the side recesses 412 of the seat cushion 41 .

2 , 5 , 6 and 7 , the armrest adjustment unit 5 is disposed on the chair frame unit 1 , and includes two armrest groups 51 respectively disposed on the left and right sides of the chair frame unit 1 , and two The front rest members 52 are respectively pivoted on a side of the armrest group 51 opposite to the seat frame unit 1 .

Each armrest set 51 includes a set 511 connected to the seat frame unit 1 , and a side rest piece 512 connected to the set 511 and the corresponding front rest piece 52 .

The kit 511 has a kit body 513 disposed outside the seat frame unit 1 , an adjusting protrusion 515 extending upward from the kit body 513 , and a side rest opposite the side rest rotatably connected to the kit body 513 . The armrest pivot 514 on one side of the member 512 . The sleeve 511 can be fixedly slidable relative to the seat frame unit 1 along the length direction move. Wherein, the above-mentioned fixed sliding method is through several grooves arranged at intervals in the extending arm section 123 and a button assembly 53 disposed between the extending arm section 123 and the kit body 513 . The button assembly 53 is similar to a seesaw structure, and has a button member 531 and a return member 532 . The button member 531 has a pressing portion 533 adjacent to one end of the kit body 513 , and a fitting portion 534 opposite to the pressing portion 533 for detachably fitting into one of the grooves of the extending arm section 123 . . When the user presses the pressing portion 533, the fitting portion 534 will be lifted up and separated from one of the grooves. When the user pulls the set 511 to position according to the length of his arm, the pressing portion 533 is released. At this time, the The restoring member 532 releases the elastic potential energy, so that the pressing portion 533 returns to the original position when it was not pressed, and the fitting portion 534 is also fitted into the corresponding groove. Thereby, an adjustable effect is achieved.

The armrest pivot portion 514 is rotatable relative to the kit body 513 around a vertical axis.

The side rest member 512 has an armrest adjusting groove 516 extending along the front-rear direction X3, and the adjusting protrusion 515 is movably disposed in the armrest adjusting groove 516 along the front-rear direction X3. It is worth noting that the extending direction of the armrest adjusting slot 516 is changed by the rotation of the armrest pivot portion 514 relative to the kit body 513 , but as long as it can be freely adjusted according to the needs of the user, the side rest member 512 can be adjusted freely. The position of the front and rear (or oblique front and oblique rear) can achieve the purpose of the present invention.

Each front support member 52 has a supporting surface 521 .

Referring to FIG. 4 and FIG. 9 , the front and rear adjustment unit 6 includes a front and rear return piece 61 connected to the first connecting seat 22 and the second connecting seat 23 , and the rear pivots pivoted to the second connecting seat 23 . The first rotating shaft 62 of the connecting portion 234 and a first link 63 whose rear end is fixed to the pivot section 124 of the side support frame and whose front end is pivoted to the first rotating shaft 62 of the second connecting base 23 .

The front and rear restoring members 61 constantly generate elastic restoring force for restoring the first connecting seat 22 to the seating position. In this embodiment, the front and rear return members 61 are pneumatic cylinders.

Referring to FIG. 10 , the side restoring unit 7 includes two side restoring members 711 pivotally connected to the side fixing blocks 43 and fixed to the front side of the connecting member 24 , and two auxiliary restoring members respectively disposed in the side restoring members 711 . 712. In this embodiment, the side restoring members 711 are springs, and the auxiliary restoring members 712 are pneumatic cylinders.

The present invention has the following three mechanisms of auxiliary support.

1. Forward Abdominal Support Mechanism (Refer to Figure 1 and Figure 8)

Each front resting member 52 is rotatable relative to the respective armrest set 51 between a side supporting position ( FIG. 1 ) and a front supporting position ( FIG. 8 ). In the side supporting position, each front resting member 52 is automatically The corresponding armrest group 51 extends in parallel, and the supporting surface 521 faces upwards. When in the front supporting position, each front leaning member 52 forms an included angle with the corresponding armrest group 51. The supporting surface 521 faces the user and is suitable for for the user to lean against when leaning forward.

2. Anterior vertebral support mechanism (refer to Figure 8~9, Figure 11~12)

The first connecting seat 22 is rotatable relative to the second connecting seat 23 between a seated position (FIG. 8-FIG. 9) and a forward tilt position (FIG. 11-FIG. 12). In the seated position, the first connecting seat 22 The connecting seat 22 and the second connecting seat 23 form a first angle (approximately parallel, 0 degrees), and the seat cushion 41 and the second connecting seat 23 form a third angle (approximately parallel, 0 degrees) degrees), the spine support frame 12 is located in a first support position, when the forward tilt position, the first connecting seat 22 and the second connecting seat 23 sandwich a second angle θ 2, the second angle θ 2 Greater than the first angle, the spine support frame 12 is located at a second support position, the seat cushion 41 and the second connecting seat 23 sandwich a fourth angle θ4 , and the fourth angle θ4 is greater than the third angle, The second support position is closer to the center line L1 than the first support position.

In detail, it is realized through the link structure of the front and rear adjustment unit 6 and the connecting unit 2. It is worth noting that the directions described in this paragraph are based on the directions shown in the drawings of the present invention, and are not used for limit the scope of the invention. When the first connecting seat 22 is about to rotate from the seating position to the forward leaning position, the first connecting seat 22 is forced to rotate counterclockwise, because the rear end of the front and rear restoring member 61 is fixed (because it is fixed on the The second rear fixing part 233), so the front end of the front and rear restoring members 61 rotates counterclockwise, so that the front and rear restoring members 61 are compressed and shortened (that is, the air pressure rod enters the cylinder), at this time, the first rotating shaft 62 is subjected to Driven and rotated counterclockwise, thus, since the rear end of the first link 63 is fixed, the front end is driven by the first shaft 62 to rotate counterclockwise, so the second angle θ 2 is greater than the first angle, and The fourth angle θ 4 is greater than the third angle and causes the second support position to be closer to the center line L1 than the first support position.

3. Roll recovery mechanism (see Figure 8, Figure 10, and Figure 11, Figure 13)

The seat cushion 41 can be operatively switched between a horizontal state (see FIG. 8 and FIG. 10 ) and a tilting state ( FIG. 11 and FIG. 13 ). In the horizontal state, each side recess 412 is located at the same height, In the roll state, the height of one side recess 412 along an up-down direction X1 is lower than the height of the other side recess 412 along the up-down direction X1, and the side restoring pieces 711 provide constant return of the seat cushion 41 to the up-down direction X1. The resilience of the horizontal state.

Through the above description, the advantages of the foregoing embodiments can be summarized as follows: through the two front rest members 52 pivoted on the side of the armrest group 51 opposite to the seat frame unit 1 respectively, when each front rest member 52 is in the In the front support position, the support surface 521 faces the user and is suitable for the user to lean against when leaning forward, so that the front leaning member 52 provides the support force when the user leans forward, and can use the pelvis as the The fulcrum makes it difficult for the pelvis to rotate, thereby reducing occupational injuries.

14 and 15, the second embodiment of the diagnosis and treatment chair of the present invention is suitable for a user to sit on, and also includes the chair frame unit 1, the connecting unit 2, the back pad 3, the seating unit 4, the armrest The adjustment unit 5 , the front and rear adjustment unit 6 (refer to FIG. 4 ), and the side recovery unit 7 (refer to FIG. 9 ) differ only in the aspect of the base 11 .

The base 11 includes chair legs 111 and extension pedals 112 respectively disposed on the chair legs. When riding the present invention, the user can place the soles of the feet on the corresponding extension pedals 112, because the extension pedals 112 are at a distance from the ground, and the dentist's treatment equipment (eg: dental bed), general diagnosis and treatment equipment (eg: ear and nose) The foot control device in the laryngeal suction device) is also some distance from the ground, so the user can simply put the By extending the foot forward (or moving the present invention adjacent to the foot switch), the aforementioned foot switch can be controlled, and it is not necessary to lift the foot for a certain distance and then press down the foot switch, thus reducing the use of the burden on the knee.

However, the above are only examples of the present invention, and should not limit the scope of the present invention. Any simple equivalent changes and modifications made according to the scope of the application for patent of the present invention and the content of the patent specification are still within the scope of the present invention. within the scope of the invention patent.

1: Chair frame unit

14: Wheel set

141: Wheels

2: Connection unit

3: Back pad

31: Back pad body

4: Ride unit

41: Chair cushion

411: Uplift

412: Side recess

5: Armrest adjustment unit

51: Armrest group

511: Kit

512: Side parts

513: Kit body

514: Armrest pivot

515: Adjust the convex part

52: Front parts

521: Support surface

X1: up and down direction

X2: left and right direction

X3: Front and rear direction

Claims (10)

A medical chair, suitable for seating by a user, comprising: a chair frame unit, which is supported on the ground; a riding unit, disposed on the seat frame unit, and suitable for the user to ride; and An armrest adjustment unit, which is arranged on the seat frame unit or the riding unit, and includes two armrest groups respectively arranged on the left and right sides of the seat frame unit, and two armrest groups respectively pivoted on the armrest group and opposite to the chair A front support member on one side of the frame unit, each front support member has a support surface, and can be rotated between a side support position and a front support position relative to the respective armrest group, in the side support position, each A front resting piece extends parallel from the corresponding armrest set, the supporting surface faces upwards, in the front supporting position, each front resting piece forms an included angle with the corresponding armrest set, the supporting surface faces the user and is suitable for for the user to lean against when leaning forward. The diagnosis and treatment chair according to claim 1, wherein each armrest group includes a set piece connected to the chair frame unit, and a side rest piece connected to the set piece and the corresponding front rest piece, the set piece having an adjustment convex portion , the side rest piece has an armrest adjusting groove extending along a front-rear direction, and the adjusting convex portion is movably arranged in the armrest adjusting groove along the front-rear direction. The diagnosis and treatment chair according to claim 2, wherein the set has a set body connected to the chair frame unit, and an armrest pivotally connected to a side of the set body opposite to the side rest member rotatably connected to the set body The armrest pivot part is rotatable relative to the kit body around a vertical axis. The diagnosis and treatment chair according to claim 1, wherein each armrest group comprises a set of sets disposed outside the chair frame unit and extending along a lengthwise extending direction, and the set of sets can be displaceable relative to the chair frame unit along the lengthwise direction Slide firmly. The diagnosis and treatment chair according to claim 4, wherein the chair frame unit comprises a base supported on the ground, and a spine support frame connected to the base, the spine support frame having a base frame section connected to the base, and two The left and right sides of the base frame are respectively connected to the extension arm segments for the sets of the armrest sets to be sleeved respectively. The diagnosis and treatment chair according to claim 1, wherein the seating unit includes a seat cushion connected to the chair frame unit, the seat cushion includes a raised portion adjacent to the front end and raised upward, and two are connected to the left side of the raised portion respectively. , the side recesses on the right side. The diagnosis and treatment chair according to claim 6, further comprising a connecting unit and a side recovery unit, the connecting unit comprising a connecting shell connected to the chair frame unit and defining an accommodation chamber, and a connection housing disposed in the accommodation chamber a connecting piece, the side restoring unit includes two side restoring pieces pivotally connected to the bottom surfaces of the side recesses and fixed to the connecting piece, the seat cushion can be operatively switched between a horizontal state and a tilting state, In the horizontal state, each side concave portion is located at the same height. In the roll state, the height of one side concave portion along an up-down direction is lower than the height of the other side concave portion along the up-down direction, and the side return members provide constant The restoring force to restore the seat cushion to the horizontal state. The diagnosis and treatment chair according to claim 1, wherein the chair frame unit comprises a base supported on the ground, and a spine support frame connected to the base, the spine support frame having a base frame segment connected to the base, and two The extension arm segments are respectively connected to the left and right sides of the base frame segment and can extend and retract relative to the base frame segment along the up-down direction. The diagnosis and treatment chair according to claim 1, further comprising a connecting unit and a front-rear adjustment unit, the connecting unit comprising a connecting shell connected to the chair frame unit and defining an accommodating room, and a connecting shell disposed in the accommodating room A first connecting seat and a second connecting seat, the seat frame unit includes a base that is supported on the ground and defines a vertical center line, and a ridge support frame connected to the base, the first connecting seat is pivoted at the base. The seating unit and the seat frame unit, the second connecting seat is fixed to the base and the spine support frame, the first connecting seat can rotate relative to the second connecting seat in a seated position between a forward tilt position, and In the sitting position, the first connecting seat and the second connecting seat are at a first angle, the spine support frame is located at a first supporting position, and in the forward leaning position, the first connecting seat and the second connecting seat are at a first angle The connecting seat is clamped at a second angle, the second angle is greater than the first angle, the spine support frame is located at a second support position, the second support position is closer to the center line than the first support position, the front and rear adjustment unit It includes a front and rear restoring member connected to the first connecting seat and the second connecting seat, and the front and rear restoring members constantly generate an elastic restoring force to restore the first connecting seat to the seating position. As claimed in claim 9, when the first connecting seat is in the seating position, the seat cushion and the second connecting seat form a third angle, and when the first connecting seat is in the forward tilted position , the seat cushion and the second connecting seat sandwich a fourth angle, and the fourth angle is greater than the third angle.

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