KR101613519B1 - Sofa Having Calf Supporter - Google Patents

Abstract

The present prevent relates to a sofa having a calf support part and allows deformation of a backrest. According to an embodiment of the present invention, the sofa having a calf support part comprises a sub-frame, a first link, a lower support plate, an upper support plate, and a second link. The sub-frame receives a force transferred from a drive part. The first link has a center part coupled to the front end of the sub-frame through a hinge and is extended from the part coupled through the hinge in one direction and in another direction. The lower support plate is coupled to the front side of a mat frame through a hinge, the mat frame having an upper end supporting a sofa mat. The upper support plate is installed on a front side of the lower support plate and is coupled to an end, which is extended in the one direction of the first link, through a hinge. The second link is installed between the lower support plate and the upper support plate and has both ends coupled to the lower support plate and the upper support plate, respectively, through a hinge. The calf support part is rotated in a direction allowing elevation or descent around a position where the lower support plate is coupled to the mat frame through a hinge by a forward/backward movement of the sub-frame, and when the lower support plate is elevated, the calf support part is pushed upward to allow the upper support plate to be spaced upward from the lower support plate.

Description

Sofa Having Calf Supporter with a calf support

The present application relates to a sofa, and relates to a sofa provided with a calf rest.

The sofa is a furniture made to sit and relax and has been passed down for centuries without major changes in shape. However, sofas used in the home are evolving as electronic products and family members change.

A couch-shaped sofa that is shaped like a sofa that can simply sit on a leg and bend the leg, stretches a leg of the sofa mat in a simple shape that improves the feeling of seating by using more cushion than a chair And a recliner sofa in which the bottom of the calf is lifted up as the back of the sofa rolls backwards.

The main purpose of sofas used by family members is to be able to enjoy cultural life while watching TV and relaxation. Individuals who meet these usage goals may be different from each other in the manner of sitting comfortably on the couch.

In other words, a person can rest on a sofa by leaning back on the back and a half on a sofa, and a person can take a rest or sleep by laying a sofa on the side like a bed.

On the other hand, the products that are configured to take a half-lying position by leaning on the sofa and leaning against the backrest of the back are a couch with a long extension of one side of the sofa (the sofa mat is longer than the seat cushion, The sofa is shaped like a couch, and the mat is protruded at the corner of the sofa. When watching TV by sitting on the couch, the viewing angle is diagonal rather than straight. It is true that it is not possible to increase the fatigue of the eyes and the comfort of the sitting posture at the time of watching and it is also true that the mat of the couch is fixed to the sofa for a long time and occupies a lot of space.

Therefore, it is necessary that the entire sofa in the form of a van, which is not in the form of a couch, be transformed into a couch shape.

In addition, if the user wants to relax by lying on the sofa side long, the width of the sofa mat may be narrow, so that the lying person can not easily lie down and can roll down to the front side of the sofa.

Patent Document 1:

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a sofa having a calf support which can broaden the width of a sofa mat while converting all the sofa in the form of a bench into a couch.

The problems of the present invention are not limited to the above-mentioned problems, and other problems not mentioned can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided a display device including a subframe that receives a force from a driving unit and moves back and forth, an intermediate portion of the subframe is hinged to the front end of the subframe, A sofa mat according to any one of claims 1 to 3, wherein the first link is provided with a first link, a lower support plate hinged to the front of the mat frame supporting the sofa mat, And a second link provided between the lower receiving plate and the upper receiving plate and hinged to both the lower receiving plate and the receiving upper plate at both ends of the lower receiving plate, When the lower support plate is lifted up, the upper support plate is rotated in the direction of the base The couch is disclosed which is provided to push the calf support portion being raised to be spaced apart with respect to the upper.

And a first spring coupled to the other end of the first link and a rear end of the subframe to elastically pull the other end of the first link toward the rear end of the subframe.

And a second spring installed between the bottom plate and the top plate, one of the bottom plates being coupled to the bottom plate and the other being coupled to the bottom plate to elastically pull the bottom plate toward the bottom plate .

According to another embodiment of the present application, there is provided a driving apparatus for a vehicle, comprising: a motor for providing a rotational force; a driving shaft rotated by the motor and extending in the left-right direction; A screw member having a screw thread formed on an outer circumferential surface of the screw member, a forward / backward screw member rotating in accordance with rotation of the screw member, a first member moving forward and backward like a block coupled with the screw, A first link hinged to the front end of the first member and extending in both directions from the hinged portion, a bottom supporting plate hinged to the front of the mat frame supporting the sofa mat, A support upper plate hinge-coupled to an end of the first link extending in one direction, a support plate installed between the support lower plate and the support upper plate, And a second link, both ends of which are hingedly coupled to the lower support plate and the upper support plate, wherein the lower support plate is moved upward or downward about a point where the lower support plate is hinged to the mat frame And when the lower support plate is raised, the support upper plate is pushed up so as to be spaced upward from the lower support plate.

And a first spring that is coupled to the other end of the first link and the rear end of the first member to elastically pull the other end of the first link toward the rear end side of the first member.

And a second spring installed between the bottom plate and the top plate, one of the bottom plates being coupled to the bottom plate and the other being coupled to the bottom plate to elastically pull the bottom plate toward the bottom plate .

The sofa having the calf rest of the present invention has the following effects.

First, since the calf support portion is provided, the entire bench-shaped sofa can be transformed into a couch shape, so that the user can switch to a desired posture and the user can freely sit on the seat.

Second, since the calf rest portion is provided as the lower support plate and the upper support plate, and the upper support plate is spaced upward from the lower support plate when the calf support portion rises, the hinge portion can be provided on the inner side to prevent safety accidents, Can be avoided and a more flat state can be maintained.

Third, since the backrest portion can be deformed, it is possible to freely use the sofa mat by expanding or folding so that the depth of the sofa mat can be widened as needed.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims.

The foregoing summary, as well as the detailed description of the preferred embodiments of the present application set forth below, may be better understood when read in conjunction with the appended drawings. For the purpose of illustrating the invention, there are shown preferred embodiments in the figures. It should be understood, however, that this application is not limited to the precise arrangements and instrumentalities shown.
1 is a perspective view showing a sofa having a calf support according to an embodiment of the present application;
FIG. 2 is a perspective view showing a state in which a calf support portion and a backrest portion of a sofa having the calf support portion of FIG. 1 are deformed;
FIG. 3 is an exploded perspective view showing a state in which a cushion and a shell of a sofa mat of a sofa having the calf rest of FIG. 2 are removed;
FIG. 4 is an exploded perspective view showing the calf rest portion of FIG. 3; FIG.
FIG. 5 is a perspective view of the calf rest of FIG. 3 folded downward; FIG.
Fig. 6 is a side view of Fig. 5; Fig.
FIG. 7 is a perspective view showing a state in which the calf rest of FIG. 3 is rotated upward; FIG.
8 is a side view of Fig. 7;
FIG. 9 is a perspective view showing a part of a sofa having a calf support according to another embodiment of the present application; FIG.
FIG. 10 is an exploded perspective view showing a main part of FIG. 9; FIG.
FIG. 11 is a side view showing a state that the backrest portion of the sofa having the calf support portion of FIG. 2 is spread upward; FIG.
FIG. 12 is a side view showing a process in which the backrest portion of the sofa having the calf rests of FIG. 2 is folded downward; FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. In describing the present embodiment, the same designations and the same reference numerals are used for the same components, and further description thereof will be omitted.

1, a sofa 100 provided with a calf support according to the present invention may include a sofa mat 110, a backrest part 130, an armrest part 190, and a calf support part 160 have.

The sofa mat 110 is provided to have a cushion for supporting the buttocks and the thighs of the seated user, and a mat frame 112 (see FIG. 3) for supporting the cushion may be provided on the lower side of the cushion.

The backrest 130 may be provided to extend upward to the rear side of the sofa mat 110 so as to support a back portion of the seating user.

The armrests 190 may be positioned on both sides of the sofa mat 110 to allow the arms of the user to be stowed.

The calf support portion 160 is provided on the front side of the sofa mat 110 and is folded downward or rotatably so as to be upwardly folded. When the sofa is in a bench shape as shown in FIG. 1, As shown in FIG.

3 and 4, the sofa mat 110 may be provided with a mat frame 112 for supporting a cushion (not shown).

The mat frame 112 is provided with a driving part 162 and the driving part 162 may be provided with a sub frame 164 which advances and retreats.

The driving unit 162 is a component for providing forward and backward power, and may include a motor (not shown), a screw, a gear, or the like, or may include a cylinder type actuator 162 to expand and contract. Of course, it may also be provided to generate a rotational force manually instead of the motor.

4, a guide rail 116 is provided to the mat frame 112 in the forward and backward directions, and a slider 118 sliding along the guide rail 116 in the forward and backward directions is provided .

In addition, the sub-frame 164 is coupled to the slider 118, and the driving unit 162 is coupled to the mat frame 112 and the sub-frame 164 to move the sub- The slider 118 coupled with the sub-frame 164 can be moved back and forth along the guide rail 116 as the driving unit 162 is operated or extended or contracted.

4, the calf rest 160 may include a first link 168, a lower support plate 172, a support upper plate 174, and a second link 176. As shown in FIG.

The first link 168 may be hinged to the front end of the sub-frame 164 and extend in both directions from the hinged portion. At this time, both sides of the sub-frame 164 may extend toward the front of the sofa mat 110.

In this embodiment, as shown in FIG. 4, the first link 168 is described as being bent around a hinge-coupled portion with the sub-frame 164, but the present invention is not limited thereto. , Or may be linear.

The lower receiving plate 172 may be hinged to the front side of the mat frame 112 so that the lower receiving plate 172 is rotated around the upper end coupled with the mat frame 112.

The support upper plate 174 is installed in front of the lower support plate 172 and is hinged to both end portions of the first link 168 extending toward the front of the sofa mat 110 .

The second link 176 is provided between the lower receiving plate 172 and the lower receiving plate 174 so that both ends are hinged to the lower receiving plate 172 and the upper receiving plate 174, respectively.

In addition, the support upper plate 174 and the support lower plate 172 may be surrounded by a cushion (not shown) and a shell (not shown). Or only the support top plate 174 may be surrounded by the cushion and the sheath.

5 to 8, the sub-frame 164 moves forward and backward according to the operation of the driving unit 162 and the sub-frame 164 moves forward and backward along the sub- Can go back and forth.

The first link 168 is hinged to the support upper plate 174 and the support upper plate 174 is engaged with the support lower plate 172 2 link 176, and the bottom support plate 172 is hinged to the mat frame 112. The bottom support plate 172 is hinge-

Therefore, the support upper plate 174 is also pushed forward in accordance with the advancement of the first link 168. At this time, the support lower plate 174 coupled with the support upper plate 174 by the second link 176 172 can be elevated while rotating around a portion hinged to the mat frame 112.

At this time, the support upper plate 174 is lifted and moved forward by the second link 176 in the forward direction of the sofa mat, while being spaced from the support lower plate 172 according to the rotation radius of the second link 176 .

Therefore, the hinge portion on which the receiving plate 172 is rotated is not exposed to the portion of the user's skin, and the length of the calf receiving portion 160 can be extended further forward. In addition, when the cushion and the outer skin are wrapped only on the base upper plate 174, the rotation of the cushion and the outer skin can be prevented.

4, a first spring 182 and a second spring 184 may be further provided.

The first spring 182 is coupled to the other end of the first link 168 extending in the other direction, that is, the lower end of the first link 168 and the rear end of the sub-frame 164, And applies an elastic tensile force to the rear end of the sub-frame 164.

That is, the first spring 182 is provided to be resiliently pulled in a direction opposite to the direction in which the first link 168 is pushed, thereby preventing the first link 168 from hanging due to clearance .

One end of the second spring 184 is coupled to the bottom plate 172 and the other end of the second spring 184 is coupled to the top plate 174 to support the bottom plate 174 toward the bottom plate 172 And may be provided so as to be elastically pulled.

The second spring 184 is elastically pulled in a direction opposite to the direction in which the lower support plate 172 and the upper support plate 174 are separated from each other so that the lower support plate 172 and the upper support plate 174 It is possible to prevent rattling by the play.

In the above-described embodiment, the driving unit 162 is formed of a cylinder-shaped actuator so as to move the subframe 164 forward and backward. However, according to the present embodiment, as shown in FIGS. 9 and 10 The driving unit may include a motor 212, a driving shaft 214, a screw member 216, and a block 222.

Prior to describing the present embodiment, the same names and reference numerals are used for the same constituent elements as in the above-described embodiment.

The motor 212 may generate a driving force to rotate the driving shaft 214. The driving shaft 214 is disposed to extend in the left and right direction of the mat frame 112 and can be rotated by the motor 212.

The screw member 216 is engaged with both ends of the driving shaft 214 and rotates together with the rotation of the driving shaft 214. The screw member 216 may extend in the forward and backward direction perpendicular to the driving shaft 214. The screw member 216 may be engaged with the drive shaft 214 by a gear member such as a bevel gear (not shown).

A screw thread may be formed on the outer circumferential surface of the screw member 216.

In addition, the block 222 may be fitted to the thread of the screw member 216 and be provided to move back and forth along the rotation of the screw member 216.

Thus, when the motor 212 is rotated, the drive shaft 214, the screw member 216 are rotated in accordance with the rotation of the motor 212, and the block 222 is moved forward or backward along the rotation of the screw member 216 .

The block 222 is coupled to a slider 118 slidably mounted on the first member 230 and the guide rail 116 by means of a bracket 224 or the like so as to be movable along the guide rail 116 . The first member 230 is formed to extend in the front-rear direction of the mat frame 112, and can be moved forward and backward along the movement of the block 222.

The first member 230 may be provided at its front end with a first link 168 and a calf support unit 160 including a lower support plate 174, a support upper plate 172 and a second link 176.

That is, the first link 168 may be rotatably coupled to the front end of the first member 230.

Since the calf rest 160 and other components are described in detail in the above description of the embodiment, the description thereof will be omitted in the present embodiment.

Therefore, when the driving unit includes the motor 212 and the driving shaft 214 and the screw member 216, the block 222, the first member 230, and the guide rail 116 as in the present embodiment, Since the calf rests 160 provided on both sides of the calf rest 112 are moved forward or backward in the same manner, both sides of the calf rest 160 can be moved with equal force even when the width of the sofa is wide.

3, the backrest part 130 extends upward from the rear side of the sofa mat 110 to support the back part of the seated person. The backrest part 130 includes a first backrest plate 132, An intermediate plate 134, a second back plate 136, a first absorber 142, and a second absorber 144. [

As shown in FIGS. 11 and 12, the first backrest plate 132 is provided on the rear side of the mat frame 112, and may extend upward.

The rear side of the intermediate plate 134 may be rotatably coupled to the upper end of the first backrest plate 132 by a first hinge 133.

The rear end of the second backrest plate 136 may be rotatably disposed at the front end of the intermediate plate 134 by a second hinge 135.

The first hinge 133 and the second hinge 135 are provided on the front side and the rear side of the intermediate plate 134. The first hinge 133 and the second hinge 135 constitute the first hinge 133 and the second hinge 135, The plate 132 and the second back plate 136 may be rotatably coupled.

In addition, the first backrest plate 132, the intermediate plate 134, and the second backrest plate 136 may be surrounded by a cushion and an envelope.

Accordingly, the intermediate plate 134 and the second backrest plate 136 can be raised as shown in FIG. 9 or folded as shown in FIG.

The first absorber 142 and the second absorber 144 may be provided so as to be lifted up when the intermediate plate 134 and the second backrest plate 136 are raised, A damper 146 may be provided to prevent sudden drops when prevented or folded.

The first absorber 142 and the second absorber 144 include a cylinder and a piston slidable with respect to the cylinder. The piston is slidably extended as a whole, and a high-pressure gas is introduced between the cylinder and the piston So that the pressure can be applied.

The first absorber 142 is rotatably coupled to a fifth hinge 153 formed at an upper end of the first backrest plate 132 and the other end is rotatably coupled to a seventh hinge 153 formed at the center of the middle plate 134. [ (Not shown).

One end of the second absorber 144 is rotatably coupled to the seventh hinge 155 and the other end is rotatably coupled to a third hinge 151 formed on the rear end of the second back plate 136. [ Possibly combined.

The fifth hinge 153 is formed on the first back plate 132 at a position spaced apart from the first hinge 133 and the third hinge 151 is formed at a position spaced apart from the second hinge 135. [ The second backrest plate 136 of FIG.

The fifth hinge 153 and the third hinge 151 are formed at a position where the relative distance to the seventh hinge 155 is changed while the intermediate plate 134 and the second back plate 136 are rotated .

That is, the fifth hinge 153 and the third hinge 151 have a maximum distance from the seventh hinge 155 when the middle plate 134 and the second back plate 136 are raised, The position can be selected such that the distance from the seventh hinge 155 is minimized when the first and second backrest plates 134 and 136 are folded.

A first absorber 142 coupled to the fifth hinge 153 and the third hinge 151 and a second absorber 142 coupled to the second hinge 153 and the third hinge 151 are provided on the basis of the second backrest plate 136 and the intermediate plate 134, The second absorber 144 is provided to push the intermediate plate 134 and the second backrest plate 136 against the first hinge 133 and the second hinge 135 as origin points, respectively.

12, when the intermediate plate 134 and the second backrest plate 136 are folded, the third hinge 151 and the third hinge 151 are interposed between the fifth hinge 153 and the seventh hinge 155, The first absorber 142 and the second absorber 144 are compressed and the cylinder pressure increases.

On the other hand, the intermediate plate 134 and the second back plate 136 are rotated in the downward direction so that the fifth plate 136 of the first absorber 142, which supports the intermediate plate 134 and the second back plate 136, The hinge 153 and the third hinge 151 of the second absorber 144 rotate about the hinges 133 and 135 of the intermediate plate 134 and are operated in the closing direction while reducing the angle with the intermediate plate 142 The moment can be increased.

Since the fifth hinge 153 and the third hinge 151 are formed at positions separated from each other in the horizontal direction from the first hinge 133 and the second hinge 135, And the second back plate 136 are folded down so that the reaction force of the first absorber 142 and the second absorber 144 is applied to the first hinge 133 and the second hinge 133 The vertical distance between the first hinge 133 and the third hinge 151 is gradually reduced so that the moment in the opposite direction acting on the first hinge 133 and the third hinge 151 by the first absorber 142 and the second absorber 144 can be gradually reduced .

Therefore, the speed at which the intermediate plate 134 and the second backrest plate 136 are folded downward gradually increases, thereby causing a safety accident that the user is injured.

Therefore, the sofa having the calf rest according to the present embodiment may further include a damper 146. [

The damper 146 includes a cylinder and a piston slidable with respect to the cylinder. The damper 146 is provided to extend and contract as the piston slides. The damper 146 is provided with a frictional force of a friction material or the like, So as to attenuate the pressure exerted upon stretching.

An extension of an extension portion 138 extending a predetermined length is formed on a rear side of a position where the intermediate plate 134 is coupled with the first hinge 133, and the damper 146 is fixed to the intermediate plate 134, And may be hinged to the rear end of the first backrest plate 138 and the rear surface of the first backrest plate 132, respectively.

Accordingly, when the intermediate plate 134 is rotated in the folding direction, the damper 146 can damp the pressure applied while being stretched to resist the rotation of the intermediate plate 134 or slow down the rotation speed.

Accordingly, it is possible to prevent sudden rotation of the intermediate plate 134 and the second backrest plate 136, thereby preventing safety accidents caused by unexpected closing.

Further, when the user needs a sofa mat 110 having a wider width, for example, lying on the sofa mat 110, the middle plate 134 and the second back plate 136 may be extended to utilize the sofa mat more widely .

Or when the user sits on the sofa mat, the intermediate plate 134 and the second back plate 136 may be folded back and utilized as a backrest.

It will be apparent to those skilled in the art that the present invention can be embodied in other specific forms without departing from the spirit or scope of the invention as defined in the appended claims. It is obvious to them. Therefore, the above-described embodiments are to be considered as illustrative rather than restrictive, and the present invention is not limited to the above description, but may be modified within the scope of the appended claims and equivalents thereof.

100: a sofa 110 provided with a calf rest 110: a sofa mat
112: mat frame 116: guide rail
130: backrest part 132: first backrest plate
133: first hinge 134: intermediate plate
135: second hinge 136: second back plate
138: extension part 142: first absorber
144: second absorber 146: damper
151: third hinge 153: fifth hinge
155: seventh hinge 160: calf support
162: driving part 164:
168: first link 172:
174: support top plate 176: second link
182: first spring 184: second spring
212: motor 214: drive shaft
216: screw member 222: block

Claims (6)

A subframe that receives a force from a driving unit and moves back and forth;
A first link hinged to the front end of the subframe and extending in both directions from the hinged portion;
A bottom plate hinged to the front of the mat frame, the top supporting the sofa mat;
A support upper plate installed in front of the lower support plate and hinged to an end of the first link extending in one direction;
A second link installed between the bottom plate and the top plate and hinged to both the bottom plate and the top plate;
/ RTI >
The lower support plate is rotated in a direction of upward or downward centering around a point where the lower support plate is hinged to the mat frame according to the forward and backward movement of the subframe, and when the lower support plate is raised, the upper support plate is spaced upward A sofa having a calf rest raised to the maximum. The method according to claim 1,
And a first spring coupled to the other end of the first link and a rear end of the subframe to elastically pull the other end of the first link toward the rear end of the subframe. The method according to claim 1,
And a second spring installed between the bottom plate and the top plate, one of the bottom plates being coupled to the bottom plate and the other being coupled to the bottom plate to elastically pull the bottom plate toward the bottom plate Sofa with calf rest. A motor for providing rotational force;
A drive shaft rotated by the motor and extending in the left and right direction;
A screw member provided at both ends of the drive shaft and extending in a direction orthogonal to the drive shaft, the screw member being engaged with the drive shaft and rotated in accordance with rotation of the drive shaft,
A block moving forward and backward in accordance with the rotation of the screw member;
A first member coupled with the block and moving back and forth like a block;
A first link hinged to an anterior end of the first member and extending in both directions from the hinged portion;
A bottom plate hinged to the front of the mat frame, the top supporting the sofa mat;
A support upper plate installed in front of the lower support plate and hinged to an end of the first link extending in one direction;
A second link installed between the bottom plate and the top plate and hinged to both the bottom plate and the top plate;
/ RTI >
The lower support plate is rotated in a direction of upward or downward centering around a point where the lower support plate is hinged to the mat frame according to the forward / backward movement of the first member, and when the lower support plate is raised, A sofa having a calf rest raised to be spaced apart. 5. The method of claim 4,
And a first spring that is coupled to the other end of the first link and the rear end of the first member to elastically pull the other end of the first link toward the rear end side of the first member, . 5. The method of claim 4,
And a second spring installed between the bottom plate and the top plate, one of the bottom plates being coupled to the bottom plate and the other being coupled to the bottom plate to elastically pull the bottom plate toward the bottom plate Sofa with calf rest.

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