KR101353031B1 - Electric motor sofa - Google Patents

Abstract

This sofa is a sofa that can satisfy the convenient functions of the couch type sofa and recliner sofa at the same time. It is an electric sofa with a completely different new drive mechanism and components that solve the shortcomings of recliner sofas that cannot be placed back and the sofa can not be placed on the wall and the sofa can be made for multi-person use.
According to the driving method of the present invention, a male sofa in which a general type sofa is coupled to both bottom edges of a mat frame by a power of a motor is rotated, and the female thread is converted into a linear motion through the female thread, so that the armrest and the bearing are fixed at an angle. Push and pull the unit to slide through the guide rail, the mat frame moves forward as much as the thickness of the backrest, and the bearing unit and the round bar combined with the female thread move forward through the guide rail by the auxiliary mat located in the lower part of the mat. As the bearing unit combined with the support slides the guide rail, the auxiliary mat base connected with white paper to the pedestal support is raised by pushing the auxiliary support connected with the round bar so that the mat and the auxiliary mat are horizontal so that the mat width is wide and the mat frame is advanced. The wire connected to the back of the mat frame Pull down the bearing unit penetrating the guide rail fixed to the rear part to incline the front part of the backrest with the Z-shaped support, connect the bearing unit and the long hole of the support and connect the round bar to the opposite hole of the support. It is related to the mechanism and components of the backrest drive and mat frame power and auxiliary mat drive which are lifted by hinged head restraint on top of backrest.
And the electric sofa is modularized into each part by mat frame, backrest, armrest, etc., so that the weight of the electric sofa can be distributed so that individual packing is possible for each component at the time of factory shipment. The overall cost can be reduced, and the work of the sofa can be divided into parts for improving productivity.
It is usually in the form of a sofa, which minimizes the space occupying space, and can be used only when it is transformed into a couch-shaped sofa to maximize space utilization.
The electric sofa of the present invention has the advantage of producing a sofa for multi-person in a form that allows family members to enjoy more comfortable rest and cultural life at the same time, so that many people at the same time can have a more comfortable rest and various cultural life at the same time. It is about an electric sofa.

Description

Electric sofa {Electric motor sofa}

According to the present invention, the head of the sofa mat is moved forward by the thickness of the sofa back by the power of the motor, and the auxiliary mat under the front part of the sofa mat is raised so that the head mat is horizontal with the mat and the backrest is inclined forward so as to be folded over the sofa back. Of the electric sofa power unit, the drive mechanism and the drive mechanism of the components that allow the pedestal to be converted to a height that can support the head;

It is possible to reduce the overall cost of producing, transporting, and storing sofas by distributing the weight of electric sofas by using modules such as mat frame, backrest, and armrests for easy movement, disassembly, assembly, and A / S of electric sofas. About how to assemble a sofa

The present invention relates to an electric sofa that can be converted into a couch sofa having a wide mat width from a general sofa shape.

Sofas are furniture designed to sit and relax and have been passed down for centuries without significant change in shape. But home sofas are evolving with changes in electronics and family members.

Couch type sofa that is designed to be able to stretch or sit down by extending a part of the sofa mat in a simple shape that improves seating comfort by using more cushions than chairs in the shape of a chair where the sofa can simply bend its legs. There is a recliner sofa with the lower part of the calf raised upwards as the back of the sofa rolls over.

The main purpose of the sofas used by family members is to relax and live a cultural life while watching TV. Each member who fits this purpose can sit on the couch and take a comfortable posture.

The product is composed of a modified sofa instead of a general sofa. It is a couch shaped sofa that has one part of the mat longer than the cushion where the sofa mat can sit, and the sofa has a fixed couch shape. As the mats protrude from the corners of the sofa, it is true that the viewing angle is not diagonal but diagonal when watching TV sitting on the couch, which does not provide increased eye fatigue and comfortable seating.

In addition, it is true that the couch-shaped mat is fixed to the sofa in the front and occupies a lot of space.

The recliner sofa is ideally designed to relax as a sofa with a fixed mat and a backrest. However, the recliner sofa lacks as a sofa for family members to have a cultural life at home.

In Korean living culture consisting of ondol, the sofa is placed in the living room. However, the recliner sofa can't be attached to the wall because the backrest is rolled back, so there must be a space between the backrest and the wall.

It is true that couch-shaped sofas with mats fixed to the sofas and recliner sofas with backrests are inadequate for use in Korean living rooms.

The present invention compensates for these drawbacks and is usually composed of a general sofa type, and the seat mattress is transformed into a couch-shaped sofa to advance the mat forward with the power of the motor and raise the auxiliary mat under the mat front. The sofa is placed on the wall of the living room in close contact with the mat, so that the width of the mat is widened and the backrest is inclined forward and the headrest folded on the top of the backrest is raised. Only when you want to be seated in a more comfortable position, you can convert the sofa into a couch-shaped sofa so that you can stretch your legs on the mat, lean your back on the back, lean your head on the head restraint, and relax your sofa in a more comfortable way. Want to configure the electric sofa to .

Therefore, in order to solve the problem, the present invention is in the state in which the back of the power unit and the back of the back is in close contact with the wall in order to move forward and the upper part is folded back, the back is inclined and the head rest is raised vertically Another method is to interlock the drive units to be erected together to achieve power transmission, and another method is to drive the mats forward and drive the support mats ascending the backrest, and the headrests ascend the backrest. The solution must be solved in such a way that it can be operated by each independent power source.

In order to move the sofa mat of the general shape forward, the mat frame and the mat cushion are separated to form a power component on the mat frame and the mat cushion is configured to assemble the mat frame.

The sofa back is configured to firmly configure the sofa back frame and to separate the back cushion from the back frame to complete each drive device.

The driving device that the auxiliary mat is raised to be horizontal with the mat is configured to connect the power unit to the mat frame or to individually configure the power driving device. Assemble

The armrests can be assembled in an independent configuration so that they can be assembled with the mat frame and the backrest.

In order to achieve this purpose, the drive for moving the mat frame forward and the drive for raising the auxiliary mat must be connected to the drive or each drive must be individually configured.

First, a driving method of the mat frame for realizing the above object will be described. The power of the motor is increased from the reduction gear box to transmit power to the shafts on both sides of the reduction gear box. The power is transmitted to the bevel gear and the bevel gear to advance the auxiliary mat. Rotate the male shaft. Each male shaft rotates and passes through the female thread.

Power transmission combines the rotational direction of the male screw shaft for advancing the mat frame with the rotational direction of the male screw shaft for raising the auxiliary mat.

In order to advance the mat frame, the female body combined with the male shaft is combined with the bearing unit, and the bearing unit penetrating the guide rail combined with the mat frame is fixed at an angle to the armrest so that the female body moves back and forth by the rotation of the male shaft. The unit is configured to slide backward through the mat frame while sliding through the guide rail.

The driving device for ascending the auxiliary mat should be configured to fix the auxiliary mat to the frame with white paper so that the auxiliary mat is advanced as much as the thickness of the mat cushion and then ascends when the auxiliary mat is unfolded. .

After the auxiliary mat is advanced as much as the thickness of the mat, the auxiliary mat is unfolded and raised. The auxiliary mat is fixed to the lower front of the mat frame with a hinge, and when the auxiliary mat is raised to the center of the white paper, This is because the top surface of the auxiliary mat interferes with the auxiliary mat so that the auxiliary mat cannot rise or cannot be level with the mat even if the auxiliary mat is raised.

The drive for climbing as the auxiliary mats unfold may be connected to the shaft of the power unit for advancing the mat or may be constructed using individual power.

In order to ascend the auxiliary mat unfolds to separate the guide rail for advancing the auxiliary mat support, and to combine the bearing unit and the support base to slide through the guide rail.

And the bearing unit penetrates and pulls the auxiliary mat is combined with the bearing unit combined with the pedestal support, and one end of the round bar is connected with the supporting support mat mat and bracket as the auxiliary support that can be folded by the pin. The bracket is combined with the bearing unit penetrating the guide rail fixed to the bottom of the mat frame, so that the bearing unit is coupled to the female screw body combined with the male thread, so that the auxiliary mat base moves forward by the movement of the female thread body.

The following is a solution to the backrest drive to separate the backrest frame into two parts. The rear part of the backrest on which the driving device is mounted and the front part of the backrest on which the cushion is mounted are configured.

The back of the backrest is inclined at an angle to the back of the backrest so that the apex of the uppercase letter Z-shape supports the end of the backrest and the front end of the backrest with the bracket so that the support can rotate freely and as long as the support angle is formed. The bearing unit is coupled to the vertex so as to slide through the guide rail so that the front part of the backrest can be inclined while moving forward. Under the bearing unit, the compression spring penetrating the guide rails elastically supports the bearing unit.

The driving device that pushes up the head restraint is equipped with two bearing units at the back of the backrest and penetrates the round bar through the bearing unit. It is a bracket that can rotate the end point of the round bar so that the head rest can move up and down. do.

One side of the head restraint is combined with the top edge of the back of the backrest with white paper so that the head restraint can be extended and raised.

Connect the bearing unit and the headrest round bar as a support for power transfer from the backrest drive to the headrest drive to raise the headrest, and secure the center of the support with a pin at the back of the backrest to form a seesaw.

The power for the backrest to incline and the headrest to rise is that the mating unit moves forward, pulling the wire, the bearing unit connected to the wire slides down, and the front part of the backrest is inclined so that the support pushes up the round bar to raise the headrest.

When the mat frame is retracted, the spring under the bearing unit pushes the bearing unit back so that the backrest and headrest return to their original positions.

The driving device as described above is to be mounted on both sides of the back portion.

As such, the mat can be moved forward and backward from the power of one motor, and the auxiliary mat, the backrest and the head restraint can be driven. The mat, auxiliary mat and backrest can also be driven independently.

As described above, in the present invention, the sofa of the general type is advanced by using the power of the motor to advance the mat to increase the width of the mat while simultaneously increasing the auxiliary mat so that the mat becomes horizontal with the mat so that the width of the mat becomes wider. By tilting the backrest and raising the headrest, the seated person can extend their legs on the sofa mat, lean back on the back and lean against the headrest, and enjoy a more comfortable posture and cultural life.

Electric sofa can be configured for multi-person seating so that many people can sit and it is usually a general type of sofa to maximize the use of space, it has the advantage that can be placed in a narrow space.

In addition, the electric sofa can be divided into modules with mats, backrests, and armrests to distribute the overall weight of the sofa, making it easy to move, transport, store and service the sofa, and reduce overall costs. In addition, it is possible to divide the work process for each module, thereby improving productivity.

1 is a view showing one side of the electric sofa in a state in which the completed sofa mat is moved forward and the auxiliary mat is raised to be parallel to the mat, the backrest is inclined, and the head rest is raised.
FIG. 2 is a projection view of the sofa frame projecting the curation of the electric sofa in the state of FIG.
3 is a projection view of a sofa frame excluding a cushion in a state where the electric sofa is folded with the mat and the backrest.
4 is a side view sequentially illustrating that the auxiliary mat is raised, the backrest is inclined, and the headrest is raised as the electric sofa mat moves forward.
FIG. 5 is a side view sequentially illustrating a mechanism in which the auxiliary mat rises as the mat moves forward in the side view of FIG. 4; FIG.
Figure 6 is a perspective view of one side of the mat frame cut in a state where the finished mat frame is stationary.
Figure 6a is a perspective view showing a progress state in which the mat frame is advanced by the power of the motor in the state of FIG.
Fig. 6B shows the state after the mat frame is moved forward.
Figure 7 is a perspective view configured to independently drive the power unit of the completed mat frame and the power unit of the auxiliary mat support.
FIG. 8 is an enlarged perspective view of a driving device for raising the auxiliary device and a power unit for cutting the mat frame to advance the mat frame; FIG.
9 is an exploded view of the components of the power unit and the drive unit of FIG.
Figure 10 shows the rotational direction of the male screw shaft according to the coupling direction of the shaft of the power unit and the bevel gear.
Fig. 11 is a projection view of projecting the back frame with the cushion of the electric sofa back removed.
Fig. 12 is a perspective view showing the backrest drive device completed with the backrest front part and the headrest removed;
Figure 13 is a perspective view showing a state in which an independent power unit is coupled to the backrest drive unit.
FIG. 13A is a perspective view showing that the power unit of FIG. 13 is coupled to the backrest drive unit with the power unit integrated with the motor. FIG.
14 is an assembled view showing the disassembled backrest driving device.
Fig. 15 is a side view showing a mechanism in which the back drive is operated.
Fig. 16 is a plan view showing a mechanism in which the headrest drive device is operated.

In order to implement the present invention, a sofa or a rail should be installed at the bottom of the mat frame so that the sofa mat can slide forward, and the mat frame should slide. The lower part should move forward and the backrest should tilt.

In addition, the sofa configuration must be made into a separate type of separate module to distribute the weight of the electric sofa to the mat frame, the backrest, the armrest, etc. to facilitate the mobility of the product.

Specific embodiments of the present invention will be described in detail with reference to the drawings while satisfying such conditions.

In the drawings, the components of the same function are denoted by the same reference numerals, and it should be noted that the enlarged parts of the power and drive components of the mat frame and the back frame are symmetrical.

First, as shown in FIG. 1, the sofa mat 100 moves forward, and the auxiliary mat 400 rises from the front lower end of the mat mat 100 to be horizontal with the mat mat 100, and the backrest 300 is inclined and the head restraint ( 500 is a perspective view of the inverted shape showing the state after the electric sofa of the present invention is transformed into a couch-shaped sofa.

The electric sofa configuration of the present invention is a cushion that wraps the module in the form of coupling the cushion to the module assembled with the power unit and the drive unit on the mat frame and the back frame is a cushion and leather, cloth, etc. The spring may be mounted under the cushioning section or inserted into the cushioning material to couple the mat cushion or back cushion to the module.

2 and 3 are projection views in which the backrests 300a and 300b and the inside of the mat frame 700 are projected in a state of removing the cushion in the state of FIG. 1, and FIG. 2 is a general electric sofa changed into a couch-shaped sofa. 3 is a projection of the time when the mat frame 700 is retracted and the backrest 300a is at the home position (general sofa shape).

As shown in the perspective view, the driving device of the present invention is largely referred to as a power device M (mounted to the drive frame for advancing and reversing the mat frame 700 from the other driving devices for convenience). And the driving device D for raising the auxiliary mat 400 and the driving device H mounted on the backrest 300.

The power unit M of the mat frame 700 will be described in detail with reference to the drawings.

The power unit of the present invention is the same as in the previously filed application No. 10-2011-0059368. The other is that the drive device (D) that can be raised to the auxiliary mat 400 to the motor 10 shaft 30 is interlocked.

FIG. 9 illustrates an assembly view of a driving device D for sliding the mat frame 700 and a driving device D for raising the auxiliary mat 400. In an actual configuration of the present invention, the mat is symmetrically left and right. The same configuration is on the other side of the frame.

The shaft of the reducer 20 of the motor is a hollow shaft, and the power transmission shaft 30 is inserted into the shaft of the reducer. As shown in the figure, the reducer 20 is a hollow shaft, but the solid shaft is not related. However, a structure capable of transmitting power in both directions is required. Although the shaft 30 is illustrated as a hexagonal shaft on the drawing, the shaft 30 may be a structure capable of transmitting power regardless of a circular shaft or a square shaft.

Bevel gear boxes 20a and 20b are inserted into and coupled to the shaft 30. The inside of the bevel gear box 20a is shown in FIG. When the threads of the male shafts 34 and 34b have the same direction, the bevel gear 32a for advancing the mat frame 700 and the bevel gear 31a for raising the auxiliary mat 400 are opposite to each other. ), So that the male screw shafts 34 and 34b rotate in opposite directions.

To change the rotational direction of the male screw shafts 34 and 34b respectively, the direction of movement of the female threads 35 and 35b of the power unit M and the driving unit D must be reversed to assist the mat frame 700 in advancing. This is because the mat 400 can be raised.

The bevel gear 31a and the bevel gear 32a, which are bitten on the same shaft 30, vary in rotational direction depending on the engagement direction.

The bevel gears 31b and 32b and the male screw shafts 34 and 34b are coupled to each other and penetrate the female screw bodies 35 and 35b to the male screw shafts 34 and 34b.

In the assembly of the power unit M of FIG. 9 for advancing the mat frame 700, the female screw 35 and the bearing unit 51 are coupled to the pins 55 by the bracket 54, and the guide rail 50 is bearing. Through the unit 51 to be coupled. A plurality of bearing units 51 penetrate the guide rails 50 to allow the bearing unit 51 to slide and to couple the bearing unit 51 to the angle 52.

In the assembly diagram of the driving device D of FIG. 9 for the auxiliary mat 400 to rise, the bearing unit 51b and the pin 55 are coupled with the female screw 35b and the bracket 54, and the guide rail 50b Sliding through the two bearing units (51b, 51s).

The pedestal supporter 41 and the bearing unit 51c are sequentially coupled to the lower end of the front bearing unit 51s, the rod 50c is penetrated through the lower bearing unit 51c, and the rear end of the round bar 50c is connected to the bearing unit. 50b is coupled to the pin (55) by the bracket (44) at the bottom.

Auxiliary mat support 40 is coupled to the support base 41 with a white paper 43, and is coupled to the auxiliary mat support 40 and the bracket 44 to the auxiliary support 42 connected to the round bar (50c).

In FIG. 8, the guide rails 50 and 50b, the male shafts 34 and 34b, and the gear boxes 20a and 20b of the power unit M and the drive unit D are coupled to the bottom of the mat frame 700. One side of the frame is shown enlarged.

FIG. 6 illustrates a state in which the mat frame 700 is stopped, and FIG. 6A illustrates a progress state in which the auxiliary mat support 40 moves forward and ascends while the mat frame 700 moves forward. FIG. In the state after the 700 is advanced, the auxiliary mat support 40 is fully raised to show the unfolded state.

Referring to Figures 6, 6a, 6b and 4 will be described in detail the driving mechanism in which the mat frame 700 is advanced and the auxiliary mat support 40 is raised.

First, the power unit M for advancing and reversing the mat frame 700 will be described.

The rotational force of the motor 10 is increased by the reduction gear 20, and the rotational force is transmitted to the shaft 30 by the bevel gear 32a and the bevel gear 32b coupled to the transmission shaft 30. It rotates and penetrates the female threaded body 35 to convert the female threaded body 35 into a linear motion.

Among the sliding elements, the bearing unit 51 and the female threaded body 35 and the coupling female threaded body 35 move and push and pull the bearing unit 51 to penetrate the guide rail 50 fixed to the frame 700. Make it slide. Combine the plurality of bearing units 51 with the angle 52 so that the angle 52 is fixed to the armrest 200, the mat frame 700 is advanced backward from the armrest 200.

In the embodiment of the driving device D for advancing and reversing the auxiliary mat 400, the female threaded body 35b is coupled to the bearing unit 51b so that the bearing unit 51b passes through the guide rail 50b and the female threaded body ( 35b) allows the bearing unit 51b to linearly move, inserts the bearing unit 51s in front of the guide rail 50b, and sequentially supports the pedestal support 41 and the bearing unit 51c at the lower end thereof. To combine.

 The female support body 35b and the round bar 50c coupled with the bearing unit 51b pass through the front bearing unit 51c so that the auxiliary support 42 connected to the round bar 50c pushes and pulls the auxiliary mat support 40. To help.

In FIG. 5, the auxiliary mat support 40 is coupled to the front bearing unit 51s by the support base 41 and the white paper 43 so that the auxiliary mat support 40 moves forward by the pushing force of the round bar 50c. The front bearing unit 51s also advances. After the front bearing unit 51s moves by L1 distance, the front bearing unit 51s is stopped by the stopper of the mat frame 700, and the auxiliary support 42 connected to the round bar 50c continues to be the auxiliary mat support 40. Push the L2 distance by the auxiliary mat base 40 to be raised while being unfolded on the basis of the white paper 43 by the auxiliary support 42. At this time, the total moving distance of the round bar 50c is L = L1 + L2.

Fig. 6 shows the mat frame 700 in the form of a general wave type, wherein the female screw 35 of the power unit M and the female screw 35b of the drive unit D each have a male screw shaft 34, At the end points of 34b), the positions in opposite directions are indicated by arrows.

In FIG. 6A, each of the female threads 34 and 34b moves in the direction of the arrow, and the angle 52 coupled with the bearing unit 51 is pushed outward and the front auxiliary mat support 40 is raised.

6b shows the state after the female threads 35 and 35b of the power unit M and the driving unit D are driven. The angle 52 is pushed further to the rear and the auxiliary mat support 40 is extended. In the raised state, each female thread 35 and 35b is indicated by an arrow in FIG. 6B at the opposite position of each male shaft 34 and 34b at the position of the female thread 35 and 35b in FIG.

When the angle 52 is fixed to the armrest 200, the frame 700 is pushed forward from the armrest 200.

7 shows that the driving device D in which the auxiliary mat 400 is lifted can be operated independently.

The actuator 34f coupled to the motor 10f is coupled to the support 1000 connecting the bearing unit 51b so that the bearing unit 51b slides through the guide rail 50b to move the auxiliary mat 400 forward. As the driving method for raising, the driving method is the same as the former method.

However, a separate motor (10f) instead of a drive device consisting of a gearbox (20b), a male screw shaft (34b), and a female screw body (35b), which are coupled to a driving motor shaft (30) for advancing the mat frame (700) to the former. ) Push and pull the bearing unit (51b) with the actuator (34f) is coupled to be raised to the auxiliary mat 400 independently of the power unit (M) of the mat frame.

The above description has described a driving mechanism in which the mat frame 700 moves forward and the auxiliary mat 400 rises.

Next, the driving device H in which the backrest 300 is inclined and the head rest 500 is raised will be described with reference to FIGS. 11 to 16.

 11 is a perspective view of projecting the backrest frames 300a and 300b in a state in which the cushion of the backrest 300 is removed, and the backrest front part and the headrest are coupled to the backrest driving device by a combination of white paper.

14 is a drive device for tilting the backrest 300 and a drive device for raising the headrest 500 in the assembly view of the backrest drive device, and the two components are connected by a support 62 having a long hole. To work together organically.

In the driving device for inclining the backrest 300, the bearing unit 51d is inserted into the guide rail 50d and the spring 67 is inserted into the guide rail 50d at the lower end of the driving unit. It supports elastically and couples the vertex A of the Z-shaped support 60 to the upper end of the bearing unit 51d by the bracket 61.

The guide rail 50d of the backrest driving device is fixed to the backrest part 300b using the bracket, and the upper vertices B and C of the Z-shaped support 60 are coupled to the bracket 66 and the pin 55 to form the front backrest. It is fixed to the part 300a and the vertex D is fixed to the back of the back portion 300b by a bracket so that the back of the back portion can move freely up and down.

In the driving device for raising the head restraint 500, the round bar 50e passes through the bearing unit 51e fixed to the back of the back part 300b, and the round bar 50e is formed at one point of the support 62 having the long hole and the pin. It is to be coupled to the bracket (61) and the pin (55) coupled with the bearing unit (51d) in the opposite long hole.

The center of the support (62) in which the long hole is formed is fixed to the back back portion (300b) by the pin (63) to allow the long hole support (62) to perform the seesaw movement so that power transmission can be made.

12 is a perspective view of the driving device assembled and fixed to the backrest.

The operation mechanism of the backrest driving device will be described with reference to FIG.

When connecting the vertices of the Z-shaped support 60 coupled to the bearing unit 51d and the bracket 61, two triangles are in contact with one side.

The two vertices B and C of the triangle are fixed to the backrest front part 300a, and one vertex A is coupled to the bearing unit 51d and the vertex D is fixed to the backrest part 300b.

When vertex A descends, vertex B, which is connected to vertex D fixed to the back of the back part 300b, descends while the top of the back of the back part 300a passes over and vertex C moves forward and the front part of the backrest part 300a. Make it slope.

Power that the backrest front part 300a is inclined is to pull the bearing unit 51d in which the compression spring 67 is pushed elastically with the wire 70 when the mat frame 700 advances.

Wire 70 is fixed to the bottom of the back of the mat frame 700 in a folded state as shown in FIG. In the folded state, the forward distance of the mat frame 700 is long, and the movement distance of the back bearing unit 51d is short, so that when the power is transmitted to the wire 70, the mat frame 700 moves forward and the wire 70 is partially fixed. Pull the bearing unit 51d down.

When the mat frame 700 is retracted, the tension of the wire 70 decreases and the bearing unit 51d is pushed up by the elasticity of the spring 67 that pushes the bearing unit 51d at the same time. Come back.

The driving method of the head restraint will be described with reference to FIG. 16.

In Fig. 16, the two ends are connected to one long hole of the support 62 in which the two ends are formed in the brackets 61 coupled to the bearing unit 51d through which the spring 67 is elastically supported through the guide rail 50d on the left side. And connecting the opposite long hole of the support 62 to the round bar 50e coupled with the head rest 500 to support the center of the support 62 so that the support 62 becomes a seesaw pin 63 on the backrest 300b. When the bearing unit 51d is pulled by the wire 70 and one end of the support 62 connected to the bracket 61 is pulled and lowered at the same time, the power is transferred by the seesaw movement and connected to the opposite side of the support 62. The round bar 50e is raised.

The length of the illustrated long hole is different and the center of rotation of the support 62 is biased because the height of the head restraint 500 and the inclination of the backrest front part 300a are different, and the distance between the long hole and the support fixing pin 63 is different. By adjusting (L3, L4) it is possible to adjust the backrest inclination and the height of the head rest 500.

As described above, the external force of tilting the backrest part 300a and raising the headrest 500 is operated by the power of the frame 700 to move forward, and when the headrest 500 and the backrest part 300a are returned to their original positions. The weight of the head restraint 500 and the elasticity of the spring 67 are operated by pushing up the bearing unit 51d.

FIG. 13 illustrates that the power for operating the backrest 300 can be operated by mounting an independent motor 10d, and the power of the mat frame 700 instead of the wire 70 for transmitting the power of the mat frame 700. The bearing unit 51d is coupled to the female body 35d in the same configuration as the device M, so that the female threaded body 35d moves, pushing and pulling the bearing unit 51d, and the backrest front part 300a and the head rest 500. Is driven up in the same manner as the former.

Another driving method in which the backrest driving device is operated by the vertical movement of the bearing unit 51d by coupling the support 71 connecting the bearing unit 51d to the male screw shaft 34e integrally formed with the motor 10e. Is shown in Fig. 13A.

As the mat frame 700 moves forward, the auxiliary mat 400 is raised and the bearing unit 51d is pulled by the wire 70, and the backrest 300 is inclined and the head restraint 500 is raised. Is shown in side view in FIG.

According to the present invention, as the backrest 300 is inclined by the power of the motor 10, the mat 100 is advanced forward and the auxiliary mat 400 is raised to be horizontal with the mat 100 so that the mat width is increased. The power device of the electric sofa mat frame is configured to be wider and the mat frame 700 is advanced to pull the wire 70, the backrest 300 is inclined and the head restraint 500 which is folded on the backrest 300 is raised. ) And the mechanism of the auxiliary mat driving device (D) and the backrest and the head restraint driving device (H).

M: Power unit D: Drive unit H: Backrest and headrest drive unit
100: Matt 200: Armrest 300: Backrest 300a: Front back portion
300b: rear back 400: auxiliary mat 500: head restraint
700: Mat frame 10, 10d, 10e, 10f: Motor 20, 20a, 20b: Gear box
30: Axis 34, 34b, 34d, 34f: Male thread 35.35b, 35d: Female thread
31a, 31b, 32a, 32b: Bevel Gear 40: Auxiliary Mat Support 41: Support Support
42: Auxiliary support 43: White 44, 54, 56, 61, 66: Bracket 55, 63: Pin
50, 50b, 50d: guide rail 50c, 50e: round bar 51, 51b, 51c, 51d, 51s: bearing unit
52: angle 60: Z type support 62: support 65: roller 67: spring
70: wires A, B, C, D: vertices

Claims (8)

A mat frame 700 supporting the mat 100 and slidably supported at an angle 52 fixed to the armrest 200;
A power unit (M) provided to advance the mat frame 700 forward and backward;
A backrest front part 300a provided at a rear side of the backrest 300 and a backrest rear part 300b provided at a rear side of the backrest front part 300a;
A headrest 500 provided at an upper side of the backrest front part 300a and provided to rotate up and down;
A driving device (H) for tilting the backrest front part 300a and rotating the head restraint 500 up and down;
Auxiliary mat 400 provided on the front side of the mat frame 700;
A driving device (D) provided to rotate the auxiliary mat 400 up and down;
Electric sofa comprising a. The method of claim 1,
The power unit (M),
A motor 10;
A male screw shaft 34 extending in the longitudinal direction in the forward and backward direction of the mat frame 700 and rotated by the motor 10;
A female threaded body 35 which is penetrated and coupled to the male screw shaft 34 and advanced back and forth according to the rotation of the male screw shaft 34;
One side is fixed to the angle 52, the other side of the bracket 54 is coupled to the female screw body 35;
Electric sofa comprising a. 3. The method of claim 2,
The driving device (D) is provided to rotate the auxiliary mat up and down,
It extends to have a longitudinal direction in the forward and backward direction of the mat frame 700, penetrates through the female screw (35b) and is rotated by the rotational force of the motor 10 and the female screw 35 of the power unit (M) A male screw shaft 34b for moving the female screw body 35b in an opposite direction;
A bearing unit 51b coupled to the female screw 35b and the bracket 54 and slidably coupled to the guide rail 50b extending in the forward and backward directions of the mat frame 700;
Supporting base 41 coupled to the front end of the guide rail (50b);
An auxiliary mat supporter 40 supporting the auxiliary mat 400 and having an upper end thereof rotatably coupled to the supporter 41 by a hinge 43;
Extended to have a longitudinal direction in the forward and backward direction of the mat frame 700, is coupled by a bearing unit 51b and a bracket 44 which is slid by the female threaded body (35b), the bearing unit (51b) A round bar 50c moving as follows;
An auxiliary support 42 having one end rotatably coupled to the front end of the round bar 50c and the other end rotatably coupled to the lower end of the auxiliary mat support 40;
Electric sofa comprising a. The method of claim 1,
Vibration device (D) is provided to rotate the auxiliary mat up and down,
An actuator 34f to which the motor 10f is coupled;
A bearing unit (51b) slidably coupled to the guide rail (50b) extending in the forward and backward direction of the mat frame (700) and provided to be moved forward and backward by the actuator (34f);
Supporting base 41 coupled to the front end of the guide rail (50b);
An auxiliary mat supporter 40 supporting the auxiliary mat 400 and having an upper end thereof rotatably coupled to the supporter 41 by a hinge 43;
An annular bar 50c extending in the longitudinal direction of the mat frame 700 in a longitudinal direction and coupled by the bearing unit 51b and the bracket 44 and moving together with the bearing unit 51b;
One end is rotatably coupled to the front end of the round bar (50c), the other end is rotatably coupled to the auxiliary mat support 40;
Electric sofa comprising a. The method of claim 1,
Driving device (H) for inclining the backrest front portion (300a), the headrest (500) to move up and down,
A guide rail 50d provided on the backrest rear part 300b to have a longitudinal direction in a vertical direction;
A bearing unit 51d penetrated through the guide rail 50d and slidably provided therein;
A spring (67) for elastically supporting the bearing unit (51d) at the lower side of the bearing unit (51d);
An upper end is coupled to the bracket 61 and a lower end is coupled to the mat frame 700 so that the bracket 61 and the bearing unit 51d are pulled downward when the mat frame 700 is advanced. 70;
A Z-shaped support 60 coupled to the backrest front part 300a, the backrest back part 300b, and a bearing unit 51d;
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The Z-shaped support,
The three members are joined in a row rotatably with each other,
The upper end is rotatably coupled to the backrest rear portion 300b,
The upper end is rotatably coupled to the backrest front portion 300a of a mutually rotatable point of the member coupled to the backrest portion 300b and the rotatably coupled member.
A lower end is rotatably coupled to the backrest front portion 300a,
The lower end is rotatably coupled to the bearing unit 51d by the bracket 61 by the mutually rotatable point of the member coupled to the backrest front portion 300a and the member rotatably coupled. Electric sofa comprising a. The method of claim 5,
Driving device (H) for inclining the backrest front portion (300a), the headrest (500) to move up and down,
An annular bar 50e disposed on the backrest rear portion 300b to have a longitudinal direction in a vertical direction and having a head restraint 500 rotatably coupled to an upper end thereof;
A bearing unit (51e) coupled to the backrest portion (300b) for supporting the round bar (50e) so as to be movable;
It is provided between the guide rail (50d) and the round bar (50e) of the backrest back portion 300b, the central portion is fixed to the backrest back portion (300b) rotatably by the pin 63, the pin 63 Long holes are formed on both sides, one of the support holes 62 is pin-coupled to the bracket (61) coupled to the bearing unit (51d) to the round bar (50e) is pin-coupled;
Electric sofa comprising more. delete delete

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