JP2021133088A - Electric lifting chair - Google Patents

Abstract

To provide an electric lifting chair capable of being rapidly and easily disassembled and stored, and assembled by hands without using work tools, and allowing even a women to easily carry.SOLUTION: A base frame body 1 installed on a floor face, a body part 10 having a fixing guide frame body 2, a lift frame body 3 and an electric cylinder for lifting drive, and a seat part 5 having a seat part 6 and a back part 7 in a foldable manner are formed so as to be freely assembled and disassembled via a hand operation connection mechanism without using work tools. The hand operation connection mechanism includes a first hand operation connection mechanism for connecting the frame body 1 and the body part 10 so as to be freely assembled and disassembled, and a second hand operation connection mechanism for connecting the body part 10 and the seat part 5 so as to be freely assembled and disassembled.SELECTED DRAWING: Figure 4

Description

The present invention relates to an electric lift chair.

There are known elevating chairs in which the seat and back are electrically raised and lowered so that elderly people with weak legs and people with disabilities can easily stand up and sit down (see Patent Documents 1 and 2). ).

Jikkai Sho 59-147514 Japanese Unexamined Patent Publication No. 2007-68920

However, the conventional electric lift chairs described in Patent Documents 1 and 2 have a structure that cannot be easily disassembled, and are transported to the user's house at the start of rental and at the end of rental in a bulky assembled state. , I had to transport it from the user's house and store it. In particular, it was difficult for female employees working at rental companies and long-term care shops to carry it alone, so it was carried by two people.
The electric lift chair of Patent Document 2 has a foldable structure, and can be stored without being a little bulky if folded. However, the total weight in the folded state remains large, and it is difficult to carry it by one person.

Therefore, the present invention relates to a base frame body installed on the floor surface; a main body portion having a fixed guide frame body, an elevating frame body, and an electric cylinder for elevating drive; a seat portion having a seat portion and a back portion foldable. And; It is configured to be disassembled and assembled freely via a manual connection mechanism that does not use work tools.
Further, the manual connection mechanism includes a first manual connection mechanism for disassembling and assembling the base frame and the main body, and a second manual connection for disassembling and assembling the main body and the seat. It has a mechanism.

Further, the first manual connecting mechanism; the rear downward tilting inclined surface of the base frame body that receives the lower end surface of the fixed guide frame body of the main body portion, and the positioning hole portion provided in the inclined surface. A lower positioning mechanism having a locking small convex portion that protrudes from the lower end surface and is inserted into the hole portion; the fixed guide frame body is maintained in an upward backward tilted posture. An intermediate height attachment / detachment connection mechanism having a horizontal pipe portion that supports the intermediate height position of the frame body is provided on the base frame body, and has a lock pin and a knob with a bolt for connecting the fixed guide frame body and the pipe portion. : Equipped.
Further, the second manual connection mechanism is: an upper opening-shaped recess of the cursor provided so as to project forward from the elevating frame body of the main body, and a horizontal pipe of the seat portion laid horizontally on the recess. And, further, a knob with a bolt screwed into the screw hole of the cursor.
Further, the main body portion includes a double speed conversion means for raising and lowering the cursor with an elevating stroke twice the elevating stroke of the elevating frame body.

According to the present invention, it can be quickly and easily disassembled and stored by human hands without using work tools such as spanners, wrenches, pliers, and screwdrivers, and conversely, it can be easily and quickly assembled. , Can be used.
It is generally said that female employees are difficult to carry unless they weigh 15 kg or less, but in the present invention, parts can be divided into parts weighing less than 15 kg, and female employees in the welfare equipment rental industry. It supports the success of.

It is a perspective view which shows one Embodiment of this invention. It is a side view. It is a perspective view which shows the state which the seat part and the like are in the process of ascending. It is a perspective view explaining the disassembled state. It is the back view of the main part which shows the shortened state. It is the back view of the main part which shows the extended state. It is a side view which shows the state which the seat part is in the lowest position. It is a side view which shows the state which the seat part is in the highest position. It is an enlarged side view of the main part shown in a partial cross section. It is a simplified block diagram for demonstrating the double speed conversion means which attached the counter flexible body and the like. It is a partial cross-sectional side view which showed the disassembled state of a base frame body and a main body part, and explained the 1st manual connection mechanism. It is a rear perspective view of the main part explaining the 1st manual connection mechanism. It is a perspective view explaining the 2nd manual connection mechanism for connecting a main body part and a seat part. It is an enlarged perspective view of a main part. It is an explanatory view of a usage state, (A) is an explanatory view of a standing assist state, and (B) is an explanatory view of a state of sitting at the lowest position of the seat portion.

Hereinafter, the present invention will be described in detail based on the illustrated embodiments.
In FIGS. 1 to 4, 1 is a base frame body installed on the floor surface, and 2 is a fixed guide frame body vertically attached (assembled) from a rear portion of the base frame body 1. Is.
Reference numeral 3 denotes an elevating frame body assembled so as to be able to elevate along the fixed guide frame body 2. The elevating frame body 3 is elevated and driven by the electric cylinder 25 described later. Reference numeral 10 denotes a main body portion in which the fixed guide frame body 2, the elevating frame body 3, and the electric cylinder 25 are assembled (integrally).

Further, the cursor 4 is assembled so that it can be moved up and down along the elevating frame body 3.
Reference numeral 5 denotes a seat portion that is detachably attached to the cursor 4, and has a seat portion 6 and a back portion 7 that are mutually foldable and unfoldable (see FIG. 4).

Then, as shown in FIGS. 1 to 14, the base frame body 1 installed on the floor surface, the main body portion 10 having the fixed guide frame body 2, the elevating frame body 3, and the elevating drive electric cylinder 25, and The seat portion 5 having the seat portion 6 and the back portion 7 foldable is configured so as to be disassembled and assembled via _{a manual connecting mechanism Y 0 that does not use a work tool.}
Moreover, the manual connection mechanism Y _{0 connects the first manual connection mechanism Y 1} that freely disassembles and assembles the base frame 1 and the main body 10, and the main body 10 and the seat 5 that can be disassembled and assembled. 2 It is equipped with a manual connection mechanism Y _2.

The first manual connection mechanism Y ₁ is composed of a lower positioning mechanism Ya and an intermediate height attachment / detachment connection mechanism Yb.
First, the lower positioning mechanism Ya will be specifically described.
The base frame 1 has a pair of left and right bent pipe members 14, 14 including a horizontal portion 11 in the front-rear direction and an upright portion 13 extending upward and slightly forward in an inclined manner, and further, the upright portions 13, 13 It has a horizontal pipe portion 15 that bridges the upper ends of the pipes to the left and right. Further, it has a horizontal girder 16 that connects and integrates the left and right horizontal portions 11 and 11. Further, a moving wheel 17 is attached to the curved portion 12.

The cross girder 16 has a cross-sectional shape obtained by bending a plate material by a press or the like, and has an inclined surface 16B tilted backward and downward, and positioning holes 16A and 16A provided on the inclined surface 16B. (See Fig. 4, Fig. 9, and Fig. 11). Small convex portions 2B and 2B for locking such as bolt heads protruding from the lower end surface 2A of the fixed guide frame 2 are wound into the holes 16A and 16A and positioned.

Further, the lower end surface 2A of the fixed guide frame body 2 is a plane orthogonal to the longitudinal direction line of the fixed guide frame body 2, and is inclined upward and backward as shown in FIGS. 1 to 3 and 7 to 9 and the like. When the fixed guide frame body 2 is assembled, the lower end surface 2A thereof is received by the inclined surface 16B.
As described above, the lower positioning mechanism Ya has the rearwardly downwardly inclined inclined surface 16B of the base frame 1 that receives the lower end surface 2A of the fixed guide frame 2 of the main body 10 (as described above). It is composed of a positioning hole portion 16A provided on the inclined surface 16B and a locking small convex portion 2B projecting from the lower end surface 2A.

Next, the intermediate height attachment / detachment connection mechanism Yb will be described. The horizontal pipe portion 15 of the base frame body 1 supports the intermediate height position of the fixed guide frame body 2 (from the back surface) so as to keep the fixed guide frame body 2 in the upward backward tilted posture. An intermediate height attachment / detachment connection mechanism connects the lock pin 22 and the bolted knob 19 to be connected in a state where the fixed guide frame 2 (the back surface) and the horizontal pipe portion 15 of the base frame 1 are in contact with each other. Yb has it.

As shown in FIGS. 7, 8, 11, and 12, the box-shaped fixtures 21 and 21 with holes are attached to the vertical members of the fixed guide frame 2, and the holes of the fixtures 21 and 21 are above the holes. A locking means is provided with a gate-shaped operating member 20 inserted from the door and a coil spring built into the mounting tool 21 (although not shown), and the gate-shaped operating member 20 hangs down to the left and right. An embodiment in which the lower end of the portion is used as the lock pin 22 is shown.
Then, the lock pins 22 and 22 can be inserted into the locking holes 15A and 15A provided in the horizontal pipe portion 15 of the base frame 1 at the same time so that they can be inserted and removed at the same time. The fixed guide frame 2 can be reliably attached to the base frame 1.

In the present invention, the lock pin 22 can be freely inserted and detached as independent left and right short rods, each of which can be inserted and detached into the coil spring (or its own weight, etc.) lock hole 15A. Yes (not shown).
In this way, after fixing the fixed guide frame 2 to the base frame 1 quickly and easily with the lock pins 22 and 22, the bolted knobs 19 and 19 are immediately attached to the back surface of the fixed guide frame 2. The fixed guide frame body 2 can be fixed to the base frame body 1 by screwing into the screw holes of.

In the fixed guide frame body 2, the elevating frame body 3, the electric cylinder, other drive mechanisms, and the like are assembled in advance to form the main body portion 10 (as a unit). Therefore, it can be said that the unit-shaped main body 10 can be quickly, easily, and firmly attached to the base frame _{1 by the first manual connecting mechanism Y 1.}
Moreover, assembly (mounting) and disassembly can be performed quickly and easily without using a work tool.

Next, before explaining the attachment structure of the seat portion 5 to the cursor 4 ─── the second manual connection mechanism Y ₂ ───, first, the shape, structure, and attachment configuration of the cursor 4 will be described.
The cursor 4 has a plan view channel shape obtained by pressing a steel plate, and has a pair of left and right protruding side piece portions 4A and 4A, and a flat plate portion 4B forming a rear wall. Further, the cursor 4 is movable in the vertical direction (relatively) with respect to the elevating frame body 3, and two rolling rollers 4C and 4C are attached to each of the left and right protruding side pieces 4A and 4A. Have. The rolling rollers 4C and 4C guide the cursor 4 while rolling to the vertical girders 3A and 3A at the left and right ends of the elevating frame body 3.

The elevating frame body 3 has a front wall plate 3B, and narrow slits 3C and 3C are formed along the left and right side edges thereof. The side pieces 4A and 4A of the cursor 4 project through the slit 3C from the inside to the front as a penetrating shape.

The front wall plate 3B has a rectangular shape (when viewed from the front) and occupies substantially the upper half of the elevating frame body 3. The fixed guide frame 2 is provided with a front wall plate 2D that occupies substantially the lower half thereof, and the front wall plate 2D is along the left and right vertical girders 2E and 2E of the fixed guide frame 2 (narrow width). Slits 2C and 2C are penetrated, and the slits 2C and 2C and the slits 3C and 3C (described above) have the same slit width dimension and the same left-right spacing, and the protruding side of the cursor 4 that moves up and down. The single portions 4A and 4A can be smoothly moved from the upper slits 3C and 3C to the lower slits 2C and 2C. On the contrary, it moves smoothly from the bottom to the top.

The protruding side pieces 4A and 4A of the cursor 4 have an upper opening-shaped recess 4E for receiving the seat portion 5 (side view). Further, the seat portion 5 has a lateral arm support pipe 5A on the back surface side. This pipe 5A is fitted into the recess 4E from above, and then the bolting knobs 5C attached to the left and right mounting pieces 5B and 5B provided on the seat portion 5 are grasped and rotated by hand and screwed into the screw holes of the cursor 4. Once worn, the seat portion 5 can be quickly and easily attached to the cursor 4.
That is, the second manual connecting mechanism Y ₂ is provided with respect to the upper opening-shaped recesses 4E and 4E of the cursor 4 and the recesses 4E and 4E, which are provided so as to project forward from the elevating frame body 3 of the main body 10. It is configured to include a horizontal pipe 5A of the seat portion 5 to be laid horizontally, and further to include a bolted knob 5C screwed into the screw hole of the cursor 4.

Next, in FIGS. 5 to 10, 25 is an electric actuator for linear reciprocating movement, and in the present invention, it may be referred to as an electric cylinder 25. The electric cylinder 25 has a structure composed of an electric motor, a speed reducer, a rotating nut member whose rotation speed of the electric motor is decelerated by the speed reducer and driven to rotate, a screw shaft, and the like.
The elevating frame body 3 is moved up and down along the fixed guide frame body 2 by such an electric cylinder 25. In the present invention, the cursor 4 has an elevating stroke twice the elevating stroke of the elevating frame body 3. The double speed conversion means W for raising and lowering the seat portion 5 is provided.

In the simplified configuration diagram of FIG. 10, the rear view of FIGS. The pulley 30 is attached to an upper portion of the elevating frame body 3.
Specifically, the uppermost ends of the left and right vertical girders 3A and 3A of the elevating frame body 3 are connected by the grip rod 3D, but at a position slightly below the grip rod 3D, the left and right vertical girders 3A, An upper girder 3E connecting the 3A is formed, and a pair of moving pulleys 30 and 30 are arranged on the upper girder 3E.

The electric cylinder 25 is arranged at the center position in the left-right direction when viewed from the front front (or rear) of the electric lift chair, and the double speed conversion means W has a pair of the electric cylinders 25 in between and symmetrically. It is arranged.
Therefore, the moving pulleys 30 and 30 are also arranged symmetrically (with a pair) (see FIGS. 5, 6 and 10).

Reference numeral 31 denotes a long flexible member suspended from below in an inverted U shape with respect to the moving pulley 30, and in the example, a belt-shaped belt is shown. One end 31A of the long flexible member 31 is attached to the horizontal lower girder 2F of the fixed guide frame body 2. In FIG. 10, the attached position is indicated by a cross, and in FIGS. 5, 6, and 9, the case where the attachment pin 8 is attached is shown.

Further, the other end 31B of the long flexible member 31 is attached to the cursor 4. In FIG. 10, the attachment position of the other end 31B of the long flexible member 31 to the cursor 4 is indicated by a cross, and in FIGS. 5 and 6, the attachment to the cursor 4 with the belt tension adjusting bracket 9 interposed therebetween. Indicates the case where it is.

When viewed from the back (or front of the front), as shown in FIGS. 5, 6 and 10, the electric cylinder 25 is arranged along the _{left and right center lines L 0.} That is, the electric cylinder 25 is arranged at the center position on the left and right. The pair of double speed conversion means W, W are arranged symmetrically with the _{electric cylinders 25 in between, with respect to the left and right center lines L 0.}
Although the case of a belt is shown as the long flexible member 31, the long flexible member 31 may be a wire (wire material), a chain, or the like.

As shown in FIG. 10, when the electric cylinder 25 extends at a predetermined speed V, the elevating frame body 3 rises at the same speed V. At this time, the moving pulley 30 also moves upward at the same speed V.
At this time, the cursor 4 to which the other end 31B of the long flexible member 31 is attached and the seat portion 5 move upward at twice the speed of 2V.
In other words, the cursor 4 and the seat portion 5 move up and down with an elevating stroke that is twice the elevating stroke of the elevating frame body 3.

As shown in FIGS. 15 (B), 5 and 7, the seat 5 and the cursor 4 are in the lowest position and the seat 6 is in contact with the floor surface, and 15 (A) and FIG. 6, As shown in FIG. 8, the state in which the seat portion 5 and the cursor 4 are in the highest position and assisting the person (user) M with weak legs to stand up from the seat portion 6 is compared with the state. Then, the following becomes clear.

That is, (i) the elevating difference (stroke) of the cursor 4 (and the seat portion 5) is twice the elevating difference (stroke) of the elevating frame body 3. (Ii) Conversely, the elevating difference (stroke) of the elevating frame body 3 is only half of the required elevating difference (stroke) of the seat portion 5 (determined in advance). (iii) Therefore, the vertical height dimension of the elevating frame body 3 and the fixed guide frame body 2 can be sufficiently reduced as compared with the conventional electric elevating chair described in Patent Document 2 as the prior art document. (Iv) The required stroke of the electric cylinder 25 can be reduced by half, and its length dimension can be reduced. (V) Therefore, the positions of the upper ends of the elevating frame body 3 and the fixed guide frame body 2 in the state shown in FIG. 15 (B) are sufficiently lowered. (Vi) As a result, even if it is used side by side with a normal sitting chair in an elderly occupancy facility, it will not be noticeable and will be used without hesitation. (vii) Moreover, as shown in FIG. 15 (A), the height position of the seat portion 6 when the person M with weak legs stands up is the same as the conventional height, and the function of assisting the standing up is fully exhibited. do.

Further, in the simplified configuration explanatory view shown in FIG. 10 and in FIGS. 5 to 9, in the state where the electric cylinder 25 is not operated ─── under the non-driving state ───, the seat portion 5 is suddenly lifted. External force may act. For example, the seat portion 5 may be grasped by a person's hand to carry the electric lift chair, and an external force in the lifting direction (upward direction) also acts on the cursor 4 to which the seat portion 5 is attached.
When such an unexpected force is applied, the seat portion 5 and the cursor 4 move upward to loosen the long flexible member 31. If such a loosening of the long flexible member 31 occurs, problems such as the long flexible member 31 being separated from the moving pulley 30 and the long flexible member 31 being entangled with other objects occur, and the seat There is a risk that the unit 5 and the cursor 4 cannot be moved up and down.

Therefore, in order to prevent the above-mentioned long flexible member 31 from loosening, a counter means K is attached.
In FIG. 10 shown in a simplified manner, first, the schematic configuration of the counter means K will be described by attaching a moving pulley 40 (for the counter) to the lower portion of the elevating frame body 3 and moving the moving pulley 40 upward. A flexible long body 41 for counters such as wires, belts, chains, etc. suspended in a U shape is provided.
One end 41A of the flexible elongated body 41 is attached to the fixed guide frame body 2, and the other end 41B is attached to the cursor 4 (via the coil spring 41C).

Therefore, the counter means K can move the cursor 4 up and down with an elevating stroke twice the elevating stroke of the elevating frame body 3, and can follow the double speed conversion means W (described above). The coil spring 41C is added so that the double speed conversion means W and the counter means K absorb the difference in each stroke and each speed difference due to the dimensional error and the operation error of each component. It is a thing.
In this way, the other end 41B of the flexible elongated body 41 is indirectly attached to the cursor 4, but it may be attached directly to the cursor 4 if desired (not shown).

Although the basic outline of the counter means K has been described with reference to FIG. 10, a specific structure will be additionally described with reference to FIGS. 9 and 7, FIGS. 7 and 8, and FIGS. 5 and 6.
The moving pulley 40 is attached to the lower portion of the elevating frame body 3 by the attachment 3F. One end 41A of the flexible elongated body 41 is attached to the cover plate 2G constituting the fixed guide frame body 2 (see FIG. 9), and the other end 41B is connected to the coil spring 41C via the connecting piece 41D. There is. The U-shaped mounting piece 4F is fixed to the flat plate portion 4B, and the coil spring 41C can be elastically shortened and deformed in the U-shaped mounting piece 4F, and is always flexible and long. The other end 41B of the body 41 is pulled up. In this way, the flexible long body 41 itself is prevented from bending (loose).

According to the above-described embodiment, the base frame body 1 installed on the floor surface; the fixed guide frame body 2 vertically attached from the base frame body 1; and the fixed guide frame body 2 that can be raised and lowered along the fixed guide frame body 2. With the elevating frame body 3 assembled to; with the cursor 4 assembled so as to be able to move up and down along the elevating frame body 3; with the seat portion 5 attached to the cursor 4; along the fixed guide frame body 2. An electric cylinder 25 that raises and lowers the elevating frame body 3; a moving pulley 30 attached to an upper portion of the elevating frame body 3 and an inverted U-shaped suspension from below on the moving sliding wheel 30 at one end 31A of the fixing guide. The cursor has a long flexible member 31 attached to the frame 2 and the other end 31B attached to the cursor 4, and has an elevating stroke twice the elevating stroke of the elevating frame 3. Since the configuration is provided with the double speed conversion means W for raising and lowering the seat portion 5 and the seat portion 5, the vertical height dimension of the lifting frame body 3 and the fixed guide frame body 2 (of the back) as compared with the conventional electric lifting chair. The height dimension) can be sufficiently reduced, and the positions of the upper ends of the elevating frame body 3 and the fixed guide frame body 2 can be sufficiently lowered in the state shown in FIG. 15 (B). Therefore, even if it is used side by side with a normal sitting chair in a facility for the elderly, it can be used comfortably without being noticeable. Further, the height of the seat portion 6 when the person M with weak legs stands up is the same as the conventional height (see FIG. 15 (A)), and the function of assisting standing up can be fully exerted.

As described in detail above, the present invention includes a base frame body 1 installed on the floor surface; a main body portion 10 having a fixed guide frame body 2, an elevating frame body 3, and an electric cylinder 25 for elevating drive; a seat portion. The seat portion 5 having the 6 and the back portion 7 as foldable; _{was configured to be disassembled and assembled via a manual connecting mechanism Y 0} that does not use a work tool, so that it can be disassembled into 3 pieces as illustrated in FIG. Therefore, even a weak person such as a woman can easily carry, store, and take out the work. For example, it is possible to support the activities of female employees in facilities for the elderly. Moreover, it can be easily and quickly disassembled and assembled by hand without using work tools such as spanners, wrenches, pliers, and screwdrivers. Therefore, each operation of disassembly and storage and take-out and assembly can be performed quickly and efficiently.

Further, the manual connection mechanism Y _{0 disassembles and assembles the first manual connection mechanism Y 1} that freely disassembles and assembles the base frame 1 and the main body 10, and the main body 10 and the seat 5. Since it is equipped with a second manual connection mechanism Y ₂ that freely connects, the base frame 1, the main body 10, and the seat 5 can be assembled efficiently in order in the assembly work of the electric lift chair. It has become possible to go. On the contrary, in the disassembling work, the seat portion 5 may be removed, and then the main body portion 10 may be removed from the base frame body 1 and disassembled, so that the work can be efficiently performed in order.

Further, the first manual connecting mechanism Y ₁ is formed on a rearwardly downwardly inclined inclined surface 16B of the base frame 1 that receives the lower end surface 2A of the fixed guide frame 2 of the main body 10 and the inclined surface 16B. A lower positioning mechanism Ya having a positioning hole portion 16A provided; and a locking small convex portion 2B protruding from the lower end surface 2A and inserted into the hole portion 16A; the fixed guide frame body 2 A horizontal pipe portion 15 that supports the intermediate height position of the fixed guide frame body 2 is provided on the base frame body 1 so as to keep the fixed guide frame body 2 and the pipe portion 15 in an upwardly tilted posture. Since it is equipped with an intermediate height attachment / detachment connection mechanism Yb having a lock pin 22 and a knob 19 with bolts to connect with the lower positioning mechanism Ya, the lower end of the fixed guide frame 2 is attached to the base frame 1 by the lower positioning mechanism Ya. On the other hand, accurate positioning can be easily and quickly performed, and moreover, it plays a role of assisting in maintaining a stable upward and backward tilted posture. Further, the lower positioning mechanism Ya can stably maintain the lower position of the fixed guide frame body 2, and the intermediate height attachment / detachment connecting mechanism Yb can firmly hold the upper backward tilted posture.
Moreover, the lock pin 22 of the intermediate height attachment / detachment connection mechanism Yb can be easily locked to the pipe portion 15, and then the bolted knob 19 can be rotated, so that the work does not require skill. Can be easily done.

Further, the second manual connecting mechanism Y ₂ is provided with respect to the upper opening-shaped recesses 4E and 4E of the cursor 4 and the recesses 4E and 4E, which are provided so as to project forward from the elevating frame body 3 of the main body 10. Since the horizontal pipe 5A of the seat portion 5 to be laid horizontally is provided, and further, the knob 5C with a bolt screwed into the screw hole of the cursor 4 is provided, the seat portion 5 is horizontal. The pipe 5A can be easily and quickly laid horizontally on the recesses 4E and 4E as an inset shape from above. If the bolted knob 5C is rotated in such a stable horizontal state, the mounting work can be performed more quickly.

Further, since the main body portion 10 has a double speed conversion means W for raising and lowering the cursor 4 with an elevating stroke twice the elevating stroke of the elevating frame body 3, the vertical height dimension of the main body portion 10 can be adjusted. It can be made small enough, and even if it is used side by side with a family seat in the user's home, it is inconspicuous and can be used comfortably by the user without hesitation. The work of assembling the main body 10 by _{the first manual connecting mechanism Y 1} and the second manual connecting mechanism Y ₂ without exposing the long flexible member 31 and the moving pulley 30 regardless of the portion 10. However, the disassembling work can be performed safely, easily and quickly.

1 Base frame body 2 Fixed guide frame body 2A Lower end surface 2B Small convex part for locking 3 Elevating frame body 4 Cursor 4E Recessed part 5 Seat part 5A Pipe 5C Bolted knob 6 Seat part 7 Back part
10 Main body
15 Horizontal pipe part
16A hole
16B slope
19 Bolted knob
22 Lock pin
25 Electric Cylinder W Double Speed Conversion Means Y ₀ Manual Connection Mechanism Y ₁ First Manual Connection Mechanism Y ₂ Second Manual Connection Mechanism Ya Lower Positioning Mechanism Yb Intermediate Height Detachable Connection Mechanism

The present invention relates to an electric lift chair.

There are known elevating chairs in which the seat and back are electrically raised and lowered so that elderly people with weak legs and people with disabilities can easily stand up and sit down (see Patent Documents 1 and 2). ).

Jikkai Sho 59-147514 Japanese Unexamined Patent Publication No. 2007-68920

However, the conventional electric lift chairs described in Patent Documents 1 and 2 have a structure that cannot be easily disassembled, and are transported to the user's house at the start of rental and at the end of rental in a bulky assembled state. , I had to transport it from the user's house and store it. In particular, it was difficult for female employees working at rental companies and long-term care shops to carry it alone, so it was carried by two people.
The electric lift chair of Patent Document 2 has a foldable structure, and can be stored without being a little bulky if folded. However, the total weight in the folded state remains large, and it is difficult to carry it by one person.

Therefore, the present invention relates to a base frame body installed on the floor surface; a main body portion having a fixed guide frame body, an elevating frame body, and an electric cylinder for elevating drive; a seat portion having a seat portion and a back portion foldable. And; are configured to be disassembled and assembled freely via a manual connecting mechanism that does not use work tools; the manual connecting mechanism is a first manual connecting mechanism that connects the base frame and the main body so as to be disassembled and assembled. The first manual connecting mechanism is provided with a second manual connecting mechanism for freely disassembling and assembling the main body and the seat ; the first manual connecting mechanism is a base that receives the lower end surface of the fixed guide frame of the main body. It has a rearwardly downwardly inclined inclined surface of the frame body, a positioning hole portion provided in the inclined surface; and a locking small convex portion that protrudes from the lower end surface and is inserted into the hole portion. The lower positioning mechanism; an intermediate height detachable connecting mechanism having a knobbed locking pin and a bolt for connecting the body and the pipe portion; are provided.

Further, the work includes a base frame body installed on the floor surface; a main body portion having a fixed guide frame body, an elevating frame body, and an electric cylinder for elevating drive; and a seat portion having a seat portion and a back portion foldable; It is freely disassembled and assembled via a tool-free manual connecting mechanism; the manual connecting mechanism includes a first manual connecting mechanism for disassembling and assembling the base frame and the main body, and the main body. A second manual connecting mechanism for freely disassembling and assembling the seat portion and the seat portion; the second manual connecting mechanism; It is provided with a shaped recess and a horizontal pipe of the seat portion that is laid horizontally on the recess, and further includes a knob with a bolt that is screwed into the screw hole of the cursor.
Further, the main body portion includes a double speed conversion means for raising and lowering the cursor with an elevating stroke twice the elevating stroke of the elevating frame body.

According to the present invention, it can be quickly and easily disassembled and stored by human hands without using work tools such as spanners, wrenches, pliers, and screwdrivers, and conversely, it can be easily and quickly assembled. , Can be used.
It is generally said that female employees are difficult to carry unless they weigh 15 kg or less, but in the present invention, parts can be divided into parts weighing less than 15 kg, and female employees in the welfare equipment rental industry. It supports the success of.

It is a perspective view which shows one Embodiment of this invention. It is a side view. It is a perspective view which shows the state which the seat part and the like are in the process of ascending. It is a perspective view explaining the disassembled state. It is the back view of the main part which shows the shortened state. It is the back view of the main part which shows the extended state. It is a side view which shows the state which the seat part is in the lowest position. It is a side view which shows the state which the seat part is in the highest position. It is an enlarged side view of the main part shown in a partial cross section. It is a simplified block diagram for demonstrating the double speed conversion means which attached the counter flexible body and the like. It is a partial cross-sectional side view which showed the disassembled state of a base frame body and a main body part, and explained the 1st manual connection mechanism. It is a rear perspective view of the main part explaining the 1st manual connection mechanism. It is a perspective view explaining the 2nd manual connection mechanism for connecting a main body part and a seat part. It is an enlarged perspective view of a main part. It is an explanatory view of a usage state, (A) is an explanatory view of a standing assist state, and (B) is an explanatory view of a state of sitting at the lowest position of the seat portion.

Hereinafter, the present invention will be described in detail based on the illustrated embodiments.
In FIGS. 1 to 4, 1 is a base frame body installed on the floor surface, and 2 is a fixed guide frame body vertically attached (assembled) from a rear portion of the base frame body 1. Is.
Reference numeral 3 denotes an elevating frame body assembled so as to be able to elevate along the fixed guide frame body 2. The elevating frame body 3 is elevated and driven by the electric cylinder 25 described later. Reference numeral 10 denotes a main body portion in which the fixed guide frame body 2, the elevating frame body 3, and the electric cylinder 25 are assembled (integrally).

Further, the cursor 4 is assembled so that it can be moved up and down along the elevating frame body 3.
Reference numeral 5 denotes a seat portion that is detachably attached to the cursor 4, and has a seat portion 6 and a back portion 7 that are mutually foldable and unfoldable (see FIG. 4).

Then, as shown in FIGS. 1 to 14, the base frame body 1 installed on the floor surface, the main body portion 10 having the fixed guide frame body 2, the elevating frame body 3, and the elevating drive electric cylinder 25, and The seat portion 5 having the seat portion 6 and the back portion 7 foldable is configured so as to be disassembled and assembled via _{a manual connecting mechanism Y 0 that does not use a work tool.}
Moreover, the manual connection mechanism Y _{0 connects the first manual connection mechanism Y 1} that freely disassembles and assembles the base frame 1 and the main body 10, and the main body 10 and the seat 5 that can be disassembled and assembled. 2 It is equipped with a manual connection mechanism Y _2.

The first manual connection mechanism Y ₁ is composed of a lower positioning mechanism Ya and an intermediate height attachment / detachment connection mechanism Yb.
First, the lower positioning mechanism Ya will be specifically described.
The base frame 1 has a pair of left and right bent pipe members 14, 14 including a horizontal portion 11 in the front-rear direction and an upright portion 13 extending upward and slightly forward in an inclined manner, and further, the upright portions 13, 13 It has a horizontal pipe portion 15 that bridges the upper ends of the pipes to the left and right. Further, it has a horizontal girder 16 that connects and integrates the left and right horizontal portions 11 and 11. Further, a moving wheel 17 is attached to the curved portion 12.

The cross girder 16 has a cross-sectional shape obtained by bending a plate material by a press or the like, and has an inclined surface 16B tilted backward and downward, and positioning holes 16A and 16A provided on the inclined surface 16B. (See Fig. 4, Fig. 9, and Fig. 11). Small convex portions 2B and 2B for locking such as bolt heads protruding from the lower end surface 2A of the fixed guide frame 2 are wound into the holes 16A and 16A and positioned.

Further, the lower end surface 2A of the fixed guide frame body 2 is a plane orthogonal to the longitudinal direction line of the fixed guide frame body 2, and is inclined upward and backward as shown in FIGS. 1 to 3 and 7 to 9 and the like. When the fixed guide frame body 2 is assembled, the lower end surface 2A thereof is received by the inclined surface 16B.
As described above, the lower positioning mechanism Ya has the rearwardly downwardly inclined inclined surface 16B of the base frame 1 that receives the lower end surface 2A of the fixed guide frame 2 of the main body 10 (as described above). It is composed of a positioning hole portion 16A provided on the inclined surface 16B and a locking small convex portion 2B projecting from the lower end surface 2A.

Next, the intermediate height attachment / detachment connection mechanism Yb will be described. The horizontal pipe portion 15 of the base frame body 1 supports the intermediate height position of the fixed guide frame body 2 (from the back surface) so as to keep the fixed guide frame body 2 in the upward backward tilted posture. An intermediate height attachment / detachment connection mechanism connects the lock pin 22 and the bolted knob 19 to be connected in a state where the fixed guide frame 2 (the back surface) and the horizontal pipe portion 15 of the base frame 1 are in contact with each other. Yb has it.

As shown in FIGS. 7, 8, 11, and 12, the box-shaped fixtures 21 and 21 with holes are attached to the vertical members of the fixed guide frame 2, and the holes of the fixtures 21 and 21 are above the holes. A locking means is provided with a gate-shaped operating member 20 inserted from the door and a coil spring built into the mounting tool 21 (although not shown), and the gate-shaped operating member 20 hangs down to the left and right. An embodiment in which the lower end of the portion is used as the lock pin 22 is shown.
Then, the lock pins 22 and 22 can be inserted into the locking holes 15A and 15A provided in the horizontal pipe portion 15 of the base frame 1 at the same time so that they can be inserted and removed at the same time. The fixed guide frame 2 can be reliably attached to the base frame 1.

In the present invention, the lock pin 22 can be freely inserted and detached as independent left and right short rods, each of which can be inserted and detached into the coil spring (or its own weight, etc.) lock hole 15A. Yes (not shown).
In this way, after fixing the fixed guide frame 2 to the base frame 1 quickly and easily with the lock pins 22 and 22, the bolted knobs 19 and 19 are immediately attached to the back surface of the fixed guide frame 2. The fixed guide frame body 2 can be fixed to the base frame body 1 by screwing into the screw holes of.

In the fixed guide frame body 2, the elevating frame body 3, the electric cylinder, other drive mechanisms, and the like are assembled in advance to form the main body portion 10 (as a unit). Therefore, it can be said that the unit-shaped main body 10 can be quickly, easily, and firmly attached to the base frame _{1 by the first manual connecting mechanism Y 1.}
Moreover, assembly (mounting) and disassembly can be performed quickly and easily without using a work tool.

Next, before explaining the attachment structure of the seat portion 5 to the cursor 4 ─── the second manual connection mechanism Y ₂ ───, first, the shape, structure, and attachment configuration of the cursor 4 will be described.
The cursor 4 has a plan view channel shape obtained by pressing a steel plate, and has a pair of left and right protruding side piece portions 4A and 4A, and a flat plate portion 4B forming a rear wall. Further, the cursor 4 is movable in the vertical direction (relatively) with respect to the elevating frame body 3, and two rolling rollers 4C and 4C are attached to each of the left and right protruding side pieces 4A and 4A. Have. The rolling rollers 4C and 4C guide the cursor 4 while rolling to the vertical girders 3A and 3A at the left and right ends of the elevating frame body 3.

The elevating frame body 3 has a front wall plate 3B, and narrow slits 3C and 3C are formed along the left and right side edges thereof. The side pieces 4A and 4A of the cursor 4 project through the slit 3C from the inside to the front as a penetrating shape.

The front wall plate 3B has a rectangular shape (when viewed from the front) and occupies substantially the upper half of the elevating frame body 3. The fixed guide frame 2 is provided with a front wall plate 2D that occupies substantially the lower half thereof, and the front wall plate 2D is along the left and right vertical girders 2E and 2E of the fixed guide frame 2 (narrow width). Slits 2C and 2C are penetrated, and the slits 2C and 2C and the slits 3C and 3C (described above) have the same slit width dimension and the same left-right spacing, and the protruding side of the cursor 4 that moves up and down. The single portions 4A and 4A can be smoothly moved from the upper slits 3C and 3C to the lower slits 2C and 2C. On the contrary, it moves smoothly from the bottom to the top.

The protruding side pieces 4A and 4A of the cursor 4 have an upper opening-shaped recess 4E for receiving the seat portion 5 (side view). Further, the seat portion 5 has a lateral arm support pipe 5A on the back surface side. This pipe 5A is fitted into the recess 4E from above, and then the bolting knobs 5C attached to the left and right mounting pieces 5B and 5B provided on the seat portion 5 are grasped and rotated by hand and screwed into the screw holes of the cursor 4. Once worn, the seat portion 5 can be quickly and easily attached to the cursor 4.
That is, the second manual connecting mechanism Y ₂ is provided with respect to the upper opening-shaped recesses 4E and 4E of the cursor 4 and the recesses 4E and 4E, which are provided so as to project forward from the elevating frame body 3 of the main body 10. It is configured to include a horizontal pipe 5A of the seat portion 5 to be laid horizontally, and further to include a bolted knob 5C screwed into the screw hole of the cursor 4.

Next, in FIGS. 5 to 10, 25 is an electric actuator for linear reciprocating movement, and in the present invention, it may be referred to as an electric cylinder 25. The electric cylinder 25 has a structure composed of an electric motor, a speed reducer, a rotating nut member whose rotation speed of the electric motor is decelerated by the speed reducer and driven to rotate, a screw shaft, and the like.
The elevating frame body 3 is moved up and down along the fixed guide frame body 2 by such an electric cylinder 25. In the present invention, the cursor 4 has an elevating stroke twice the elevating stroke of the elevating frame body 3. The double speed conversion means W for raising and lowering the seat portion 5 is provided.

In the simplified configuration diagram of FIG. 10, the rear view of FIGS. The pulley 30 is attached to an upper portion of the elevating frame body 3.
Specifically, the uppermost ends of the left and right vertical girders 3A and 3A of the elevating frame body 3 are connected by the grip rod 3D, but at a position slightly below the grip rod 3D, the left and right vertical girders 3A, An upper girder 3E connecting the 3A is formed, and a pair of moving pulleys 30 and 30 are arranged on the upper girder 3E.

The electric cylinder 25 is arranged at the center position in the left-right direction when viewed from the front front (or rear) of the electric lift chair, and the double speed conversion means W has a pair of the electric cylinders 25 in between and symmetrically. It is arranged.
Therefore, the moving pulleys 30 and 30 are also arranged symmetrically (with a pair) (see FIGS. 5, 6 and 10).

Reference numeral 31 denotes a long flexible member suspended from below in an inverted U shape with respect to the moving pulley 30, and in the example, a belt-shaped belt is shown. One end 31A of the long flexible member 31 is attached to the horizontal lower girder 2F of the fixed guide frame body 2. In FIG. 10, the attached position is indicated by a cross, and in FIGS. 5, 6, and 9, the case where the attachment pin 8 is attached is shown.

Further, the other end 31B of the long flexible member 31 is attached to the cursor 4. In FIG. 10, the attachment position of the other end 31B of the long flexible member 31 to the cursor 4 is indicated by a cross, and in FIGS. 5 and 6, the attachment to the cursor 4 with the belt tension adjusting bracket 9 interposed therebetween. Indicates the case where it is.

When viewed from the back (or front of the front), as shown in FIGS. 5, 6 and 10, the electric cylinder 25 is arranged along the _{left and right center lines L 0.} That is, the electric cylinder 25 is arranged at the center position on the left and right. The pair of double speed conversion means W, W are arranged symmetrically with the _{electric cylinders 25 in between, with respect to the left and right center lines L 0.}
Although the case of a belt is shown as the long flexible member 31, the long flexible member 31 may be a wire (wire material), a chain, or the like.

As shown in FIG. 10, when the electric cylinder 25 extends at a predetermined speed V, the elevating frame body 3 rises at the same speed V. At this time, the moving pulley 30 also moves upward at the same speed V.
At this time, the cursor 4 to which the other end 31B of the long flexible member 31 is attached and the seat portion 5 move upward at twice the speed of 2V.
In other words, the cursor 4 and the seat portion 5 move up and down with an elevating stroke that is twice the elevating stroke of the elevating frame body 3.

As shown in FIGS. 15 (B), 5 and 7, the seat 5 and the cursor 4 are in the lowest position and the seat 6 is in contact with the floor surface, and 15 (A) and FIG. 6, As shown in FIG. 8, the state in which the seat portion 5 and the cursor 4 are in the highest position and assisting the person (user) M with weak legs to stand up from the seat portion 6 is compared with the state. Then, the following becomes clear.

That is, (i) the elevating difference (stroke) of the cursor 4 (and the seat portion 5) is twice the elevating difference (stroke) of the elevating frame body 3. (ii) Conversely, the elevating difference (stroke) of the elevating frame body 3 is only half of the required elevating difference (stroke) of the seat portion 5 (determined in advance). (iii) Therefore, the vertical height dimension of the elevating frame body 3 and the fixed guide frame body 2 can be sufficiently reduced as compared with the conventional electric elevating chair described in Patent Document 2 as the prior art document. (iv) The required stroke of the electric cylinder 25 can be reduced by half and its length dimension can be reduced. (v) Therefore, the positions of the upper ends of the elevating frame body 3 and the fixed guide frame body 2 in the state shown in FIG. 15B are sufficiently lowered. (vi) As a result, even if it is used side by side with a normal sitting chair in a facility for the elderly, it will be used inconspicuously and without hesitation. (vii) Moreover, as shown in FIG. 15 (A), the height position of the seat portion 6 when the person M with weak legs stands up is the same height as before, and the function of assisting standing up is fully exhibited. do.

Further, in the simplified configuration explanatory view shown in FIG. 10 and in FIGS. 5 to 9, in the state where the electric cylinder 25 is not operated ─── under the non-driving state ───, the seat portion 5 is suddenly lifted. External force may act. For example, the seat portion 5 may be grasped by a person's hand to carry the electric lift chair, and an external force in the lifting direction (upward direction) also acts on the cursor 4 to which the seat portion 5 is attached.
When such an unexpected force is applied, the seat portion 5 and the cursor 4 move upward to loosen the long flexible member 31. If such a loosening of the long flexible member 31 occurs, problems such as the long flexible member 31 being separated from the moving pulley 30 and the long flexible member 31 being entangled with other objects occur, and the seat There is a risk that the unit 5 and the cursor 4 cannot be moved up and down.

Therefore, in order to prevent the above-mentioned long flexible member 31 from loosening, a counter means K is attached.
In FIG. 10 shown in a simplified manner, first, the schematic configuration of the counter means K will be described by attaching a moving pulley 40 (for the counter) to the lower portion of the elevating frame body 3 and moving the moving pulley 40 upward. A flexible long body 41 for counters such as wires, belts, chains, etc. suspended in a U shape is provided.
One end 41A of the flexible elongated body 41 is attached to the fixed guide frame body 2, and the other end 41B is attached to the cursor 4 (via the coil spring 41C).

Therefore, the counter means K can move the cursor 4 up and down with an elevating stroke twice the elevating stroke of the elevating frame body 3, and can follow the double speed conversion means W (described above). The coil spring 41C is added so that the double speed conversion means W and the counter means K absorb the difference in each stroke and each speed difference due to the dimensional error and the operation error of each component. It is a thing.
In this way, the other end 41B of the flexible elongated body 41 is indirectly attached to the cursor 4, but it may be attached directly to the cursor 4 if desired (not shown).

Although the basic outline of the counter means K has been described with reference to FIG. 10, a specific structure will be additionally described with reference to FIGS. 9 and 7, FIGS. 7 and 8, and FIGS. 5 and 6.
The moving pulley 40 is attached to the lower portion of the elevating frame body 3 by the attachment 3F. One end 41A of the flexible elongated body 41 is attached to the cover plate 2G constituting the fixed guide frame body 2 (see FIG. 9), and the other end 41B is connected to the coil spring 41C via the connecting piece 41D. There is. The U-shaped mounting piece 4F is fixed to the flat plate portion 4B, and the coil spring 41C can be elastically shortened and deformed in the U-shaped mounting piece 4F, and is always flexible and long. The other end 41B of the body 41 is pulled up. In this way, the flexible long body 41 itself is prevented from bending (loose).

According to the above-described embodiment, the base frame body 1 installed on the floor surface; the fixed guide frame body 2 vertically attached from the base frame body 1; and the fixed guide frame body 2 that can be raised and lowered along the fixed guide frame body 2. With the elevating frame body 3 assembled to; with the cursor 4 assembled so as to be able to move up and down along the elevating frame body 3; with the seat portion 5 attached to the cursor 4; along the fixed guide frame body 2. An electric cylinder 25 that raises and lowers the elevating frame body 3; a moving pulley 30 attached to an upper portion of the elevating frame body 3 and an inverted U-shaped suspension from below on the moving sliding wheel 30 at one end 31A of the fixing guide. The cursor has a long flexible member 31 attached to the frame 2 and the other end 31B attached to the cursor 4, and has an elevating stroke twice the elevating stroke of the elevating frame 3. Since the configuration is provided with the double speed conversion means W for raising and lowering the seat portion 5 and the seat portion 5, the vertical height dimension of the lifting frame body 3 and the fixed guide frame body 2 (of the back) as compared with the conventional electric lifting chair. The height dimension) can be sufficiently reduced, and the positions of the upper ends of the elevating frame body 3 and the fixed guide frame body 2 can be sufficiently lowered in the state shown in FIG. 15 (B). Therefore, even if it is used side by side with a normal sitting chair in a facility for the elderly, it can be used comfortably without being noticeable. Further, the height of the seat portion 6 when the person M with weak legs stands up is the same as the conventional height (see FIG. 15 (A)), and the function of assisting standing up can be fully exerted.

As described in detail above, the present invention includes a base frame body 1 installed on the floor surface; a main body portion 10 having a fixed guide frame body 2, an elevating frame body 3, and an electric cylinder 25 for elevating drive; a seat portion. The seat portion 5 having the 6 and the back portion 7 as foldable; _{was configured to be disassembled and assembled via a manual connecting mechanism Y 0} that does not use a work tool, so that it can be disassembled into 3 pieces as illustrated in FIG. Therefore, even a weak person such as a woman can easily carry, store, and take out the work. For example, it is possible to support the activities of female employees in facilities for the elderly. Moreover, it can be easily and quickly disassembled and assembled by hand without using work tools such as spanners, wrenches, pliers, and screwdrivers. Therefore, each operation of disassembly and storage and take-out and assembly can be performed quickly and efficiently.

Further, the manual connection mechanism Y _{0 disassembles and assembles the first manual connection mechanism Y 1} that freely disassembles and assembles the base frame 1 and the main body 10, and the main body 10 and the seat 5. Since it is equipped with a second manual connection mechanism Y ₂ that freely connects, the base frame 1, the main body 10, and the seat 5 can be assembled efficiently in order in the assembly work of the electric lift chair. It has become possible to go. On the contrary, in the disassembling work, the seat portion 5 may be removed, and then the main body portion 10 may be removed from the base frame body 1 and disassembled, so that the work can be efficiently performed in order.

Further, the first manual connecting mechanism Y ₁ is formed on a rearwardly downwardly inclined inclined surface 16B of the base frame 1 that receives the lower end surface 2A of the fixed guide frame 2 of the main body 10 and the inclined surface 16B. A lower positioning mechanism Ya having a positioning hole portion 16A provided; and a locking small convex portion 2B protruding from the lower end surface 2A and inserted into the hole portion 16A; the fixed guide frame body 2 A horizontal pipe portion 15 that supports the intermediate height position of the fixed guide frame body 2 is provided on the base frame body 1 so as to keep the fixed guide frame body 2 and the pipe portion 15 in an upwardly tilted posture. Since it is equipped with an intermediate height attachment / detachment connection mechanism Yb having a lock pin 22 and a knob 19 with bolts to connect with the lower positioning mechanism Ya, the lower end of the fixed guide frame 2 is attached to the base frame 1 by the lower positioning mechanism Ya. On the other hand, accurate positioning can be easily and quickly performed, and moreover, it plays a role of assisting in maintaining a stable upward and backward tilted posture. Further, the lower positioning mechanism Ya can stably maintain the lower position of the fixed guide frame body 2, and the intermediate height attachment / detachment connecting mechanism Yb can firmly hold the upper backward tilted posture.
Moreover, the lock pin 22 of the intermediate height attachment / detachment connection mechanism Yb can be easily locked to the pipe portion 15, and then the bolted knob 19 can be rotated, so that the work does not require skill. Can be easily done.

Further, the second manual connecting mechanism Y ₂ is provided with respect to the upper opening-shaped recesses 4E and 4E of the cursor 4 and the recesses 4E and 4E, which are provided so as to project forward from the elevating frame body 3 of the main body 10. Since the horizontal pipe 5A of the seat portion 5 to be laid horizontally is provided, and further, the knob 5C with a bolt screwed into the screw hole of the cursor 4 is provided, the seat portion 5 is horizontal. The pipe 5A can be easily and quickly laid horizontally on the recesses 4E and 4E as an inset shape from above. If the bolted knob 5C is rotated in such a stable horizontal state, the mounting work can be performed more quickly.

Further, since the main body portion 10 has a double speed conversion means W for raising and lowering the cursor 4 with an elevating stroke twice the elevating stroke of the elevating frame body 3, the vertical height dimension of the main body portion 10 can be adjusted. It can be made small enough, and even if it is used side by side with a family seat in the user's home, it is inconspicuous and can be used comfortably by the user without hesitation. The work of assembling the main body 10 by _{the first manual connecting mechanism Y 1} and the second manual connecting mechanism Y ₂ without exposing the long flexible member 31 and the moving pulley 30 regardless of the portion 10. However, the disassembling work can be performed safely, easily and quickly.

1 Base frame body 2 Fixed guide frame body 2A Lower end surface 2B Small convex part for locking 3 Elevating frame body 4 Cursor 4E Recessed part 5 Seat part 5A Pipe 5C Bolted knob 6 Seat part 7 Back part
10 Main body
15 Horizontal pipe part
16A hole
16B slope
19 Bolted knob
22 Lock pin
25 Electric Cylinder W Double Speed Conversion Means Y ₀ Manual Connection Mechanism Y ₁ First Manual Connection Mechanism Y ₂ Second Manual Connection Mechanism Ya Lower Positioning Mechanism Yb Intermediate Height Detachable Connection Mechanism

Claims (5)

The base frame (1) installed on the floor and
A main body (10) having a fixed guide frame (2), an elevating frame (3), and an electric cylinder (25) for elevating drive,
A seat portion (5) having a seat portion (6) and a back portion (7) that can be folded freely.
An electric lift chair characterized by being freely disassembled and assembled via a manual connection mechanism (Y _{0) that does not use work tools.} The manual connection mechanism (Y _{0 ) includes a first manual connection mechanism (Y 1} ) that connects the base frame body (1) and the main body portion (10) so as to be disassembled and assembled, and the main body portion (10). The electric lift chair according to claim 1, further comprising a _{second manual connection mechanism (Y 2} ) for disassembling and assembling the seat portion (5). The first manual connection mechanism (Y ₁ ) is
On the rearward downward inclined inclined surface (16B) of the base frame body (1) which receives the lower end surface (2A) of the fixed guide frame body (2) of the main body (10), and the inclined surface (16B). The provided positioning hole (16A) and
A lower positioning mechanism (Ya) having a locking small convex portion (2B) that protrudes from the lower end surface (2A) and is inserted into the hole portion (16A).
The horizontal pipe portion (15) that supports the intermediate height position of the fixed guide frame body (2) is provided with the base frame body (1) so as to keep the fixed guide frame body (2) in an upward and backward tilted posture. An intermediate height attachment / detachment connection mechanism (Yb) having a lock pin (22) and a bolted knob (19) for connecting the fixed guide frame body (2) and the pipe portion (15).
The electric lift chair according to claim 2. The second manual connection mechanism (Y ₂ ) is
With respect to the upper opening-shaped recesses (4E) (4E) of the cursor (4) provided so as to project forward from the elevating frame body (3) of the main body (10) and the recesses (4E) (4E). Claims provided with a horizontal pipe (5A) of the seat portion (5) to be laid horizontally, and further provided with a bolted knob (5C) screwed into the screw hole of the cursor (4). Item 2. The electric lift chair according to item 2. The fourth aspect of the present invention, wherein the main body (10) includes a double speed conversion means (W) for raising and lowering the cursor (4) with an elevating stroke twice the elevating stroke of the elevating frame body (3). Electric lift chair.

Images