KR20090002049U - Electric motion Lift Chair - Google Patents

Abstract

The present invention is to allow the elderly and the patient with uncomfortable legs to stand up easily without using other auxiliary means to stand up, a plurality of fixed frames are fixed between the spaced frame, the support plate and It is characterized in that the lifting device consisting of a chair made of a backrest and a fastener having a through-hole formed on the back of the backrest, a screw rotatably coupled to the through-hole of the fastener, and a drive motor for rotating the screw on the bottom of the screw. .

The present invention, such as the elderly, the patient can stand up comfortably without effort when standing up in a sitting state, otherwise sitting on an elevated chair can be comfortably seated, by adjusting the angle of the backrest is comfortable for the user There is a useful effect that you can relax in posture.

Pedestals, chairs, lifting devices, screws

Description

Electric lifting chair {Electric motion Lift Chair}

The present invention relates to an electric elevating chair, and more particularly, to an electric elevating chair that assists the elderly and the patient, such as a leg or waist uncomfortable to rise in a sitting position.

Chairs allow a person to sit comfortably or sit at a desk height. Various types of chairs are used.

In such a chair, a back plate that contacts a buttocks of a person and a backrest on which a person can lean can be fixed, and a chair having only a back plate without a back is used.

In recent years, a vertical lifting device is provided on the bottom of the support plate so that the user can adjust the height according to the height of the body, and a plurality of wheels are installed on the bottom of the lifting device to move freely.

Such a height-adjustable chair is disclosed in the following Document 1, "position control chair," which is shown in FIG.

As shown in FIG. 1, the "positioning chair" of the prior art 1 is the center of the chair in which the legs 18 and the seat 16 of the chair 10 with the wheels 11 are connected by the center post 17. As shown in FIG. A chair 14 is formed in a position extending to the post 17 to be in contact with the ground and at the same time the lifting member 12 of the central post 17 is elastically lifted to the spring 13, the chair The pedestal 11 is freely formed on the core rod 19 of the member 12 by the bearing 15.

Such a chair for position control has an advantage in that the bearing 15 is coupled so that the mandrel 19 coupled to the inside of the center post 17 is smoothly rotated so that the user can freely rotate in the left and right directions.

The chair for position control is freely rotated because the bearing 15 is coupled between the central post 17 and the mandrel 19, and can be freely moved by the wheels 11 to increase user convenience.

On the other hand, the following document 2 discloses "an angle adjustable refractory chair" is shown in Figures 2a and 2b.

As shown in Figure 2, the legless chair of the prior art 2 is connected to the head support portion 25, the head support portion 25 supporting the head of the human body so as to be mutually refracted and the waist supporting the waist portion of the human body A support 24 is provided.

In addition, the hip support 24 is mutually refracted and connected to the buttock support part 26 supporting the hips of the human body, the buttock support part 26 is mutually refracted connected to the knee and supports the knee part of the human body The support part 27 and the knee support part 27 are mutually refracted and are composed of a calf support part 28 supporting a calf and a foot part of a human body.

In addition, the head support 25, the waist support 24, the buttocks support 26, knee support 27 and calf support 28 inside the iron head support frame 25a, waist support frame 24a, buttocks, respectively The support frame 26a, the knee support frame 27a, and the calf support frame 28a are mounted.

In addition, the connection portion of the head support frame (25a), waist support frame (24a), buttock support frame (27a) can be mutually refracted via a ratchet-type rotating mechanism (30), the frames (25a, 24a, 26a, The mat member 32 of synthetic resin material is installed around the 27a and 28a, and the soft urethane foam 33 and the cover member 35 are installed on the mat member 32.

In addition, the ratchet rotary mechanism 30 has one end mounted to one frame member 311, the other end divided into a U shape, and the ratchet receiving member 310 having two opposing plates, and one end of the other frame member ( It is mounted to the 321 and the other end is divided into a U-shape consisting of a tooth forming member 320 having two teeth 322.

The ratchet accommodating member 310 is rotatably installed inside and is elastically supported in one direction, and the ratchet 312 having the first toenails 312a and the second toenails 312b and the two teeth 322 are provided. It is provided with a ratchet fixing member 325 positioned between.

The teeth 324 of the tooth forming member 320 are sequentially held in the first toenail 312a so that the relative positions of the frame members 311 and 321 are deflectably fixed.

[Document 1] Republic of Korea Patent Application No. 2005-51907

[Document 2] Republic of Korea Patent Application No. 2006-51464

The above-described prior art 1 has the disadvantage that the elderly and patients with inconvenient legs can not be used to rise from the floor.

In addition, the articulated legless chair has the advantage that each support (25, 24, 26, 27, 28) can be used to bend in the shape desired by the user, but the elderly or patients with inconvenient legs can be used to stand up from the floor. There were no drawbacks.

In other words, the elderly or patients with discomfort will have strength in the leg muscles if they want to get up from the floor, while the elderly or patients with weak muscles in the leg muscles will be assisted by other assistants or assistants Stand up.

Accordingly, the elderly and the patients were inconvenient to stand up and sit up due to pain in the legs or knees when standing up while sitting.

An object of the present invention devised to solve the above problems is to provide an electric lifting chair that can be easily rise up without using other auxiliary means when the elderly, patients with inconvenient legs, etc. to stand up sitting have.

In addition, another object of the present invention is to provide an electric lifting chair that can be adjusted freely, as well as the angle of the backrest according to the user's body.

In order to achieve the above object, the electric lifting chair of the present invention is made up of a plurality of fixed frames between a spaced frame, a support plate and a backrest, and a fixture having a through-hole fixed on the back of the backrest, the fixture A lifting device consisting of a screw rotatably coupled to the through-hole and a drive motor for rotating the screw on the screw bottom is installed.

In addition, the lifting device of the present invention is characterized by consisting of a bracket having a fixed hole formed on the bottom surface of the drive motor, a fixed bracket is formed in the arc of the slide hole and fixed to the side of the frame, the sliding bar is fitted to the fixed hole and the slide hole to rotate along the slide hole do.

The present invention, such as the elderly, the patient can stand up comfortably without effort when standing up in a sitting state, otherwise sitting on an elevated chair can be comfortably seated, by adjusting the angle of the backrest is comfortable for the user There is a useful effect that you can relax in posture.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

Figure 3 is an exploded perspective view showing the electric lifting chair of the present invention, Figure 4 is a side view showing a state in which the electric lifting chair of the present invention is raised. Figure 5 is a side view showing a state in which the electric lifting chair of the present invention is lowered.

As shown in Figures 3 to 5, the electric lifting chair 100 of the present invention elevates the chair 110 and the chair 130 installed on the upper surface of the pedestal 110 and the pedestal 110 is fixed to the bottom of the chair The lifting device 150 is made to.

Pedestal 110 is fixed to the frame 111 is the same as the width of the chair 130 or spaced slightly smaller than the width of the chair 130, a plurality of fixed frames 112 are fixed between these frames (111) It is fixed at intervals.

The chair 130 includes a support plate 131 fixed horizontally and a backrest 132 fixed vertically, and a sensing lever 133 for detecting a state in which the chair 130 is lowered on the bottom of the support plate 131. ) Is installed.

When the detection lever 133 is in contact with the frame 111 or the fixed frame 112, the power supply to the elevating device 150 is cut off to prevent the elevating device 150 from being driven, as well as the user's leg. It is formed in an approximately 'c' shape so as not to be pinched.

In addition, the backrest 132 is fixed to the fastener 136 is formed with a through hole 135 on the back.

Armrests 137 are provided on both sides of the support plate 131 so that a user sitting on the chair 130 may put his arm on the support plate 131, and a rotation mechanism 134 is installed between the support plate 131 and the backrest 132.

The rotating mechanism 134 may use a ratchet rotating mechanism that freely adjusts the backrest 132 at a predetermined angle, as described above in the prior art 2, and thus a detailed description thereof will be omitted.

In addition, the chair 130 is provided with a lift selection switch, a lower selection switch (not shown in the drawing) so that the user manipulates the lifting device 150.

The lifting device 150 has a screw 152 such as a ball screw or a TM screw fixed to the driving motor 151, and a bracket having a fixing hole 153 formed on a bottom surface of the driving motor 151. 154 is fixed, and a fixing bracket 155 having a sliding hole 156 formed in an arc shape is fixed to the inner surface of the frame 111.

In addition, a stopper 152a for restricting the rise of the fixture 136 is fixed to the top of the screw 152 when the fixture 136 is raised.

The sliding bars 157 are fixed to the fixing holes 153 of the brackets 154 and the sliding holes 156 of the fixing brackets 155.

That is, the sliding bar 157 changes the position of the drive motor 151 as the angle of the backrest 132 is adjusted by the rotation mechanism 134 so that the drive motor 151 is maintained at the same angle as the backrest 132. do.

The present invention made up of such a configuration is mainly used by the elderly, patients with inconvenient back or legs, these users will rest on the floor of the living environment, such as living room or room.

At this time, the user is provided in the electric lifting chair 100 to stand in a state where the support plate 131 of the electric lifting chair 100 sits on the support plate 131 lowered to the frame 111 of the pedestal 110. Operate the elevating selector switch.

As the lift selection switch is operated, power is applied to the driving motor 151 of the lifting device 150, and the driving motor 151 is driven by the applied power to rotate the screw 152.

Since the screw 152 is made of a ball screw or a thiem screw, the chair 130 is not rotated, but the fixture 136 is raised by the rotation of the screw 152. The fastener 136 is raised along the screw 152, the user is raised to the proper height, that is, the height of the knee or higher than the user can stand without applying excessive force on the leg, the lift selector switch operation Will stop.

In addition, the top of the screw 152 is provided with a stopper 152a so that the chair 130 is no longer raised even when the chair 130 is raised to the stopper 152a position.

Accordingly, the driving motor 151 stops driving because the power is cut off, and the user stands up without applying power to the leg by raising the upper body.

On the other hand, the user to operate the rotary mechanism 134 is installed between the backing plate 131 and the backrest 132 to take a comfortable posture while sitting on the floor of the living room or room.

The rotating mechanism 134 retracts the backrest 132 to the rear inclined, and the lifting device 150 behind the backrest 132 is also inclined at the same angle as the backrest 132.

The lifting device 150 is coupled to the fixing hole 153 of the bracket 154 protruding to the bottom surface of the driving motor 151 so that the sliding bar 157 is rotated along the sliding hole 156 of the fixing bracket 155. .

In this way, even when the backrest 132 is inclined, the chair 130 can be raised to stand up. That is, the chair 130 and the lifting device 150 are inclined at the same angle, and the lifting device 150 is fixed to the fixing bracket 155 and the sliding bar 157.

The chair 130 is raised as described above as the user operates the lifting select switch in a state inclined backward.

In addition, the user is to sit on the support plate 130 of the chair 130 is raised to sit on the floor of the room or living room, such as to operate the lower selection switch. As the lower select switch is operated, power is applied to the driving motor 151 of the elevating device 150, and the screw 152 is rotated in the opposite direction to the driving motor 151.

The chair 130 is lowered by the rotation of the screw 152, and when the chair 130 is lowered to the frame 111, the sensing lever 133 is in contact with the frame 111. When the sensing lever 133 contacts the frame 111, the power of the driving motor 151 is cut off by the contact of the sensing lever 133 even if the user operates the down select switch.

Accordingly, the chair 130 is stopped to descend, the user can sit without moving the waist or lower body, and can sit comfortably by raising the arm on the armrest 137 in a sitting position on the floor.

In addition, as shown in Figure 6, the second embodiment of the present invention will be omitted the description of the same configuration as the first embodiment described above, and a brief description of the configuration different from the first embodiment.

In the electric lifting chair 100a according to the second embodiment of the present invention, the driving motor 151 is rotatably fixed to the link 160. That is, a bracket 154 having a fixing hole 153 is formed under the driving motor 151, and one end of the link 160 having a predetermined length is rotatable by fixing means such as rivets in the bracket 154. The other end of the link 160 is rotatably fixed to the frame 111 by fixing means such as rivets.

Since the second embodiment of the present invention is the same as the first embodiment described above, the description of its operation will be omitted.

FIG. 7 is a rear view showing a third embodiment of the present invention, and the description of the same components as those of the first or second embodiment will be omitted, and will be briefly described. .

In the electric lifting chair according to the third embodiment of the present invention, two lifting devices 150 are installed on the back of the backrest 132 to allow the chair to be lifted in a seated state. That is, when only one lifting device 150 is installed, the lifting device 150 is driven in a state where a heavy weight person is sitting to safely lift the chair 130.

In addition, since the third embodiment operates in the same manner as the first embodiment or the second embodiment, the description of the operation will be omitted.

FIG. 8 is a side view showing a fourth embodiment of the present invention, and the description of the same components as those of the first embodiment or the second embodiment will be omitted, and will be briefly described.

In the electric lifting chair according to the fourth embodiment of the present invention, a support 170 supporting the chair 130 is rotatably installed between the pedestal 110 and the chair 130.

One end of the support 170 includes a cylinder 171 that is rotatably fixed to the frame 111 and a rod 172 that is mounted on the cylinder 171. That is, the cylinder 171 is rotatably fixed to the frame 111, the rod 172 is rotatably fixed to the bottom surface of the support plate 131 of the chair 130.

In addition, as the support 170 is lifted up the chair 130, the cylinder 171 of the support 170 is rotated, and the rod 172 is raised together with the support plate 131, as shown in Figure 8, the rod 172 Is extended from the cylinder 171 and the load applied to the chair 130 is supported.

In addition, since the fourth embodiment operates in the same manner as the first embodiment or the second embodiment, the description of the operation will be omitted.

Figure 1 is a side view showing a conventional position control chair.

Figure 2a is a side cross-sectional view showing a conventional articulated legless chair.

Figure 2b is an exploded perspective view showing a conventional rotating mechanism.

Figure 3 is an exploded perspective view showing an electric lifting chair according to a first embodiment of the present invention.

Figure 4 is a side view showing a state in which the electric lifting chair in accordance with a first embodiment of the present invention.

Figure 5 is a side view showing a state in which the electric lifting chair is lowered according to the first embodiment of the present invention.

Figure 6 is an exploded perspective view showing a second embodiment of the present invention.

Figure 7 is a rear view showing a third embodiment of the present invention.

Figure 8 is a side view showing a fourth embodiment of the present invention.

<Explanation of symbols for main parts of the drawings>

100: electric lifting chair 110: pedestal

111: frame 112: fixed frame

130: chair 131: support plate

132: backrest 133: sensing lever

134: fixing plate 135: through hole

136: fixture 137: armrest

150: lifting device 151: drive motor

152: screw 153: fixing hole

154: bracket 155: fixing bracket

156: sliding ball 157: sliding bar

160: link

Claims (5)

Pedestal with multiple fixed frames fixed between spaced frames, A chair made of a support plate and a backrest and having a fastener having a through hole formed on the back of the backrest, And an elevating device comprising at least one elevating device including a screw rotatably coupled to the through hole of the fixture and a drive motor rotating the screw on the screw bottom. The method of claim 1, The lifting device is a bracket having a fixed hole formed on the bottom of the drive motor, Fixing bracket is formed in the arc of the slide hole is fixed to the side of the frame, An electric lifting chair, characterized in that the sliding bar is inserted into the fixed hole and the slide hole rotates along the slide hole. The method of claim 1, The lifting device is a bracket having a fixed hole formed on the bottom of the drive motor, One end of the link is rotatably fixed to the fixing hole side, And the other end of the link is rotatably fixed to the frame. The method of claim 1, A support is installed between the pedestal and the chair, The support is an electric elevating chair, characterized in that the cylinder is rotatably fixed to the frame and a rod that is rotatably fixed to the bottom of the backing plate of the chair, the rod is variable in length according to the lifting and lowering of the chair. The method according to any one of claims 2 to 4, The bottom of the chair is coupled to the sensing lever for contacting the frame when the chair is lowered to cut off the driving motor power, The lift elevating chair, characterized in that the stopper is fixed to the top of the screw to limit the rise of the fixture.

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