TWM496967U - Chair with sitting and lying conversion mechanism - Google Patents

Description

Chair with sitting and changing mechanism 【0001】

This creation is about a chair, especially a chair with a sitting and changing mechanism.

【0002】

The existing chair that can be converted into a bed is mainly connected with a plurality of link mechanisms between the seat plate and the back plate, so as to be selectively convertible into a bed for lying or a chair for sitting.

[0003]

However, the existing chairs that can be converted into beds have the following shortcomings to be overcome:

[0004]

1. The existing chair that can be transformed into a bed, after being converted into a bed, is pulled by the plate mechanism only by the link mechanism to maintain the lying state, but there is no other strong support, often because of lying on it. The user's weight causes the link mechanism to be distorted or damaged.

[0005]

Second, the existing chair that can be converted into a bed, because the link mechanism is connected to the majority of the connecting rod by the elastic element, in the process of the transformation, the plate is quickly transformed into an upright because of the action of the elastic element. Shaped or flat, often causing a person to be pinched or injured.

[0006]

Therefore, how to design a novel that can improve the above-mentioned defects is a major issue that the creators of this case want to solve.

【0007】

The purpose of the present invention is to provide a chair having a sitting and changing mechanism, which can have a corresponding abutment support when the base is changed into a flat or upright shape, and a pneumatic cylinder is connected to the connecting rod. The group makes the transformation of the abutment smooth, smooth and smooth.

[0008]

In order to achieve the above object, the present invention provides a chair having a sitting and changing mechanism, comprising: a sitting portion; at least one leaning portion; and at least one bending mechanism, the bending mechanism comprising a connecting rod set and a pneumatic cylinder. Wherein, the connecting rod set is connected between the seat portion and the abutting portion and has two pivoting portions, the connecting rod set includes a supporting rod member and an actuating rod member actuated by the supporting portion, the supporting rod member The utility model has two supporting portions, and the actuating rod member has two abutting portions respectively correspondingly positioned corresponding to the two supporting portions according to the upright and flat lying of the abutting portion; the pneumatic cylinder is connected to the connecting rod group The action of the link group is interfered between the two pivotal positions.

【0009】

Compared with the prior art, the present invention has the following effects: the link group has a corresponding abutment support when the seat is placed and changed, and the seat-side transformation action of the abutment is connected by connecting the pneumatic cylinder It can be smooth, smooth and smooth.

[0037]

100‧‧‧ seat

[0038]

200‧‧‧ Dependent

[0039]

300‧‧‧Bending mechanism

[0040]

3‧‧‧ linkage group

[0041]

31‧‧‧Sitting parts

[0042]

311‧‧‧The first pivotal joint

[0043]

313‧‧‧ Third pivotal joint

[0044]

315‧‧‧ fifth pivotal joint

[0045]

32‧‧‧Relief bars

[0046]

32a‧‧‧Fixed section

[0047]

32b‧‧‧ turning section

[0048]

322‧‧‧Second pivotal joint

[0049]

324‧‧‧fourth pivotal joint

[0050]

326‧‧‧ Sixth pivotal joint

[0051]

33‧‧‧Support rods

[0052]

331‧‧‧First support

[0053]

332‧‧‧second support

[0054]

34‧‧‧ actuation rod

[0055]

34a‧‧‧ Straight section

[0056]

34b‧‧‧Arc section

[0057]

341‧‧‧First Abutment

[0058]

342‧‧‧Second Abutment

[0059]

5‧‧‧ pneumatic cylinder

[0060]

51‧‧‧Return switch

[0061]

6‧‧‧Reply components

[0062]

61‧‧‧ Carrier

[0063]

62‧‧‧Removable parts

[0064]

621‧‧‧ pivot end

[0065]

622‧‧‧Free end

[0066]

623‧‧‧Outer convex

[0067]

63‧‧‧Flexible components

[0068]

64‧‧‧Wire

[0069]

65‧‧‧Drawstring

[0010]

Figure 1 is a partial perspective view of the creation chair.

[0011]

2 is an exploded perspective view of the bending mechanism according to one side of FIG.

[0012]

Fig. 3 is a perspective view showing the hinge portion of the creation chair in an upright position.

[0013]

Fig. 4 is a perspective view showing the abutment of the chair in the creation of the chair.

[0014]

Figure 5 is a side elevational view of the creation according to Figure 3.

[0015]

Figure 6 is a side elevational view of the creation according to Figure 4.

[0016]

Figure 7 is a schematic view of the return assembly of the creation chair before being pulled.

[0017]

Figure 8 is a schematic view of the recovery component of the creation chair after being pulled.

[0018]

The detailed description and technical content of the present invention are described below with reference to the drawings, but the drawings are provided for reference and description only, and are not intended to limit the creation.

[0019]

The present invention provides a chair having a sitting-and-rear mechanism, as shown in FIG. 1, including a seat 100 for the user to sit on and a seat 200 for the user to lean against, and the seat 200 can be a seat back. For the back of the user, the handrail can be used for the user's hand. In the drawing of the embodiment, the handrail is taken as an example, but the creation is not limited. In addition, regardless of whether the abutment portion 200 can be a seat back or an armrest, after the bending portion 300 is bent and the leaning portion 200 is turned from the upright state to the flat state, the seat portion 100 can be combined with the seat portion 100 for the user to lie down. .

[0020]

As shown in FIG. 1, FIG. 2 and FIG. 3, the creation chair includes a seat portion 100, a base portion 200 (only one for the seat back, two for the armrest), and a connection between the seat portion 100 and the seat portion. A bending mechanism 300 between 200. The bending mechanism 300 includes a link set 3 and a pneumatic cylinder 5, and preferably a return assembly 6. Wherein, the link set 3 is connected between the seat part 100 and the base 200, and the pneumatic cylinder 5 is connected to the link set 3, so that the action of the interference link set 3 becomes smooth, smooth and smooth (ie: smooth) .

[0021]

The connecting rod set 3 includes: a seat rod member 31 attached to the seat portion 100, a lever member 32 fixed to the seat portion 200, and connected between the seat rod member 31 and the abutment rod member 32 and actuated A support rod member 33 and an actuating rod member 34 of the abutment portion 200.

[0022]

A third pivoting portion 313 and a fifth pivoting portion 315 are respectively disposed at two ends of the seat rod member 31. The third pivoting portion 313 of the seat rod member 31 and the fifth pivoting portion 315 are further disposed. There is a first pivoting point 311.

[0023]

The supporting member 32 includes a fixing portion 32a and a turning portion 32b which are end-to-end and bent, so that the fixing portion 32a and the turning portion 32b have an angle (not shown), and the fixing portion 32a is substantially The hinge portion 32b extends in a direction substantially perpendicular to the height direction of the base portion 200. The fixing portion 32a is fixed to the base portion 200, and the turning portion 32b is provided with a second pivoting portion 322, a fourth pivoting portion 324 and a sixth pivoting portion 326.

[0024]

The second pivoting portion 322 is disposed at the free end of the turning portion 32b; the fourth pivoting portion 324 is disposed adjacent to the end of the fixed portion 32a and the turning portion 32b, in terms of the lever member 32. The fourth pivotal joint 324 is adjacent to the second pivotal joint 322 (shown in FIG. 2 ); the sixth pivotal joint 326 is disposed between the second pivotal joint 322 and the fourth pivotal joint 324 and The protrusion forms a triangle between the second pivoting portion 322, the fourth pivoting portion 324 and the sixth pivoting portion 326.

[0025]

The two ends of the support bar member 33 are respectively pivotally connected to the first pivoting portion 311 of the seat bar member 31 and the second pivoting portion 322 of the abutment bar member 32. Moreover, one side of the support rod member 33 has a first support portion 331 and a second support portion 332.

[0026]

The actuating lever member 34 includes a straight rod portion 34a (see FIG. 3) and an arc curved portion 34b that end to end with each other, and the free end of the straight rod portion 34a (ie, one end of the actuating rod member 34) is pivotally connected to the seat rod member. The third pivoting portion 313 of the third pivoting portion 313, the free end of the curved portion 34b (ie, the other end of the actuating lever member 34) is pivotally coupled to the fourth pivoting portion 324 of the abutment member 32. Moreover, one side of the actuating lever member 34 has a first abutting portion 341 and a second abutting portion 342. One side of the actuating lever member 34 is opposite to the side of the supporting rod member 33, so that the first abutting portion 341 The second abutting portion 342 corresponds to the first support portion 331 and the second support portion 332, respectively. The first abutting portion 341 is formed between the end portion of the arc segment 34b and the straight portion 34a, and the second abutting portion 342 is formed at the arcuate position of the arc segment 34b.

[0027]

The pneumatic cylinder 5 is connected between the seat rod member 31 and the abutment rod member 32. In detail, the two ends of the pneumatic cylinder 5 are respectively pivotally connected to the fifth pivot joint 315 and the abutment portion of the seat rod member 31. A sixth pivoting point 326 of the lever member 32. Further, the pneumatic cylinder 5 further has a return switch 51 which is turned on by controlling the return switch 51 to return the pneumatic cylinder 5 compressed into a shortened state (see Fig. 6) to an extended state (see Fig. 5).

[0028]

As shown in Figures 3, 4, 5 and 6, therefore, when the abutment 200 is turned over (turned from an upright position to a flat state, or from a flat position to an upright state), the abutment member 32 will follow The lever member 33, the actuating lever member 34 and the pneumatic cylinder 5 are actuated together by the turning portion 32b of the lever member 32 (even the seat member 31 is slightly biased). Accordingly, when the abutment portion 200 is in the upright state, the first abutting portion 341 of the actuating lever member 34 is positioned against the first supporting portion 331 of the supporting lever member 33, so that the link group 3 can be supported thereby. The abutting portion 200 is in an upright state; when the abutment portion 200 is in a lying state, the second abutting portion 342 of the actuating lever member 34 is positioned against the second supporting portion 332 of the supporting rod member 33 to make the connecting rod The group 3 can thereby support the state in which the base 200 is lying flat.

[0029]

In other words, the actuating lever 34 will abut against the first support portion 331 or the second support of the support bar member 33 with its first abutting portion 341 or the second abutting portion 342 depending on the upright and reclining of the abutment portion 200, respectively. Positioned by portion 332.

[0030]

As for the pneumatic cylinder 5, when the abutment member 32 is erected or lie with the abutment portion 200, interference occurs with the abutment member 32, so that the upright portion of the abutment portion 200 is turned upside down or flattened to be erect, both of which are It can be smooth, smooth and smooth.

[0031]

As shown in FIGS. 2, 7, and 8, the return assembly 6 includes a carrier 61, a trigger member 62, an elastic member 63, a wire member 64, and a pull cord 65. The carrier 61 is fixed to the seat 100; the triggering member 62 has a pivoting end 621 pivotally connected to the carrier 61, a free end 622 relative to the pivoting end 621, and between the pivoting end 621 and the free end 622. And an outwardly convex portion 623; the elastic member 63 is connected between the free end 622 of the trigger member 62 and the carrier 61; the wire 64 is connected to the outer convex portion 623 of the trigger member 62 and the return switch of the pneumatic cylinder 5 Between 51; the pull cord 65 is connected to the free end 622 of the trigger member 62, and the free end of the pull cord 65 is located at a position that allows the user to pull, for example, the free end of the pull cord 65 protrudes from the seat portion 100. Between the base 200 and the base 200 (as shown in Figure 1).

[0032]

Therefore, when the user pulls the pull cord 65, the trigger member 62 can rotate with its pivot end 621 as an axis, and the outer convex portion 623 is deflected by an appropriate distance, and the wire 64 is pulled by the deflection distance. When the return switch 51 of the pneumatic cylinder 5 is pulled, the control is turned ON (ie, ON), and the pneumatic cylinder 5 starts to return to the state shown in FIG. 5. At this time, the first abutment of the actuating lever 34 is performed. The portion 341 is positioned and supported against the first support portion 331 of the support rod member 33 in such a state as to return to a state in which the user can sit (the base portion 200 stands upright relative to the seat portion 100). When the user pushes the abutment portion 200 from the upright state to the lying state, the actuating lever member 34 is positioned and supported by the second abutting portion 342 against the second support portion 332 of the support lever member 33. That is, the lying state in which the user can lie down, at which time the pneumatic cylinder 5 is also driven by the link group 3 to be compressed into a shortened state as shown in FIG. If the backrest 200 is to be returned to the upright state, it is only necessary to pull the pull cord 65 again, which is quite convenient.

[0033]

In addition, only one bending mechanism 300 can be connected between each of the abutments 200 and the seat 100. As shown in FIG. 1 , FIG. 2 and FIG. 3 , two bending mechanisms 300 are connected, and each of the hinges is connected. In the two bending mechanisms 300 connected to the 200, only one of them may be connected to the pneumatic cylinder 5 to reduce the cost, but the creation is not limited.

[0034]

In summary, the present invention has the following effects as compared with the prior art: the link group 3 can have a corresponding resistance when the base 200 is changed to a flat shape or when the flat portion is returned to an upright shape. Support is provided to ensure that the base 200 can be stably positioned in a lying state or an upright state. Furthermore, since the link group 3 also has the pneumatic cylinder 5 connected, the changing action of the base 200 can be made smooth, smooth and smooth, and there is no more pinching or injury to the human hand (or other parts of the human body). The situation happened.

[0035]

In addition, the creation system has other functions: by the reply component 6, it is possible to easily control the backrest 200 to return to the erect state from the lying state.

[0036]

The above is only a preferred and feasible embodiment of the present invention, and thus does not limit the scope of the patent of the creation, and the equivalent structural changes that are made by using the present specification and the contents of the schema are all included in the creation. Within the scope of the rights, it is given to Chen Ming.

100‧‧‧ seat

200‧‧‧ Dependent

300‧‧‧Bending mechanism

3‧‧‧ linkage group

31‧‧‧Sitting parts

311‧‧‧The first pivotal joint

313‧‧‧ Third pivotal joint

315‧‧‧ fifth pivotal joint

32‧‧‧Relief bars

32a‧‧‧Fixed section

32b‧‧‧ turning section

322‧‧‧Second pivotal joint

324‧‧‧fourth pivotal joint

326‧‧‧ Sixth pivotal joint

33‧‧‧Support rods

34‧‧‧ actuation rod

34a‧‧‧ Straight section

34b‧‧‧Arc section

341‧‧‧First Abutment

342‧‧‧Second Abutment

5‧‧‧ pneumatic cylinder

6‧‧‧Reply components

Claims (10)

[Item 1] A chair having a sitting and changing mechanism, comprising:
a seat;
At least one of the abutments; and at least one bending mechanism, the bending mechanism comprising a link set and a pneumatic cylinder, wherein
The connecting rod group is connected between the seat portion and the abutting portion and has two pivoting portions. The connecting rod group includes a supporting rod member and an actuating rod member that are driven by the supporting portion, and the supporting rod member has two a supporting portion, the actuating lever member has two abutting portions that are selectively positioned corresponding to the two supporting portions according to the upright and reclining of the abutting portion;
The pneumatic cylinder is connected between the two pivotal joints of the link set to interfere with the action of the link set. [Item 2] The chair having the sitting conversion mechanism according to claim 1, further comprising a returning component, the pneumatic cylinder having a return switch, the return switch being controlled to be opened by the returning component. [Item 3] The chair of claim 2, wherein the restoring assembly comprises a carrier, a triggering member, an elastic member, a pull cord and a wire, the carrier being fixed to the seat portion, the triggering The member has a pivoting end pivotally connected to the carrier, a free end opposite to the pivoting end, and an outward convex portion between the pivoting end and the free end, the elastic element is connected to the wrench Between the free end of the movable member and the carrier, the wire is connected between the outer convex portion of the trigger member and the return switch, and the pull rope is connected to the free end of the trigger member. [Item 4] The chair having the sitting conversion mechanism according to claim 1, wherein the link set further comprises a seat bar member disposed on the seat portion and a lever member fixed to the base portion, the support bar member Connected between a first pivoting portion of the seat bar member and a second pivoting portion of the seat bar member, the actuating lever member is coupled to a third pivoting portion of the seat bar member and the A pneumatic cylinder is coupled between a fifth pivoting portion of the seat member and a sixth pivoting portion of the base member between a fourth pivoting portion of the lever member. [Item 5] The chair of claim 4, wherein the two ends of the seat bar are respectively provided with the third pivoting portion and the fifth pivoting portion, and the first pivoting portion is Between the third pivoting portion of the seat member and the fifth pivoting portion; the second pivoting portion is disposed at one end of the lever member, and the fourth pivoting portion is disposed on the leaning rod And adjacent to the second pivoting portion, the sixth pivoting portion is disposed between the second pivoting portion of the leaning rod and the fourth pivoting portion and convex. [Item 6] The chair having the sitting conversion mechanism according to claim 4, wherein the abutment bar member comprises a fixed segment and a turning segment that are end to end and bent, and the fixing segment is fixed to the abutment, the second The pivoting portion, the fourth pivoting portion and the sixth pivoting portion are all disposed on the turning portion, and the fourth pivoting portion is adjacent to the front end of the fixed segment and the turning portion. [Item 7] The chair having the sitting conversion mechanism according to claim 6, wherein the fixing section of the abutment member extends substantially according to a height direction of the abutment, and the turning section of the abutment member is substantially based on The other side of the portion that extends in the height direction extends. [Item 8] The chair having the sitting conversion mechanism according to claim 4, wherein the actuating lever member comprises a straight rod segment and an arc curved segment that end to end each other, and the free end of the straight rod segment is pivotally connected to the seat portion rod The third pivotal portion, the free end of the curved section is pivotally connected to the fourth pivotal joint of the abutment rod, and the curved section is formed between the end of the straight section and the end of the straight section There is a first abutting portion, and the arcuate position of the arc segment is formed with a second abutting portion. [Item 9] A chair having a sitting conversion mechanism as claimed in claim 1, wherein the abutment is a seat back. [Item 10] A chair having a sitting conversion mechanism as claimed in claim 1, wherein the abutment is an armrest.