JP2009007090A - Household elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve a connecting mechanism for connecting an inside door and an outside door of a household elevator. <P>SOLUTION: A first connector 18 structuring a connecting mechanism is structured of a first loosely fitting portions 18k and 18i by using a fixed piece 18a fixed to an inside door 9 and an upper and a lower lock receiver pieces 18g and 18h arranged between both the doors 9 and 6F or 6S and formed long in the width direction of the doors. On the other hand, a second connector 20 is structured of support shafts 20a respectively provided in each of the outside doors 6F and 6S in the first floor and the second floor so as to be projected toward the inside door 9, riding over the lock receiver pieces 18g and 18h, and rectangular lock pieces 20c each provided in a tip of the support shaft 20a. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention belongs to the technical field of home elevators provided in ordinary houses such as two-story and three-story houses.

  In recent years, it has been proposed that household elevators will be installed in ordinary houses so that elderly people and people with disabilities can freely move between the lower floor and the upper floor to improve the living environment. Yes. And when providing an elevator for home use in this way, there exists a problem that it is difficult to ensure the space for elevator installation large. Therefore, as a means of saving space in a home elevator, it is proposed that the inner door body provided in the lifting body and the outer door body provided in the hoistway are configured to open and close and swing. In the case of the configuration, there is a problem that the inner door body and the outer door body must be individually operated, and the operation becomes troublesome.

As means for improving this, conventionally, a connecting mechanism is provided between the inner door body and the outer door body, and the outer door body and the inner door body are integrated by positioning the lifting body at a preset stop position. Are connected to each other, and these door bodies are integrated by operating one of the door bodies, and can be integrally opened and closed by operating either of the door bodies. Has been advocated.
Japanese Utility Model Publication No. 50-81571

The conventional connecting mechanism includes a L-shaped locking piece in a plan view provided on the outer surface of the inner door body on the lifting body side, and a U-shaped locking groove shape in a plan view provided on the inner surface of the outer door body on the hoistway side. And the lifting body reaches a predetermined stop position so that the locking piece and the locking receiving piece are in a positional relationship in which they are locked inward and outward. By opening and closing one of the door bodies, the other door body is configured to open and close in conjunction. However, in such a configuration, the relative movement in the door width direction occurs between the locking piece and the locking receiving piece due to the opening operation of both doors. Although it is necessary to form a longer length in the direction, the length of the locking piece and the locking receiving piece is set to the relative displacement amount in order to securely hold the locking state between the locking pieces even when the door body is fully opened. In addition to the problem that the compactness is impaired, the locking piece and the locking receiving piece are in a state where one end of the longitudinal direction is cantilevered to each door body. Since it is the structure attached, there exists a problem that the front-end edge of a latching piece tends to shift | deviate position by making a latching piece long, and adjustment is difficult.
Further, since the locking piece and the locking receiving piece are configured to be relatively displaced in a direction in which the mutual locking area becomes smaller as both doors are opened, some load is applied to both door bodies in the opening posture of both door bodies. In the case of acting in the direction of separating, there is a problem that the load concentrates and acts on the tip portions of the locking piece and the locking receiving piece, so that the deformation tends to occur. Further, in this case, since the locking piece and the locking receiving piece are configured to be relatively movable in the vertical direction, the connection mechanism is not limited to the two-story structure, and corresponds to a three-story or four-story house. Although it can be installed in the elevator system, there is no member to regulate the position in the vertical direction when opening and closing both doors, so there is a possibility that both doors may be opened and closed with the vertical position shifted. There are problems to be solved by the present invention.

The present invention was created in view of the above-described circumstances to solve these problems, and the invention of claim 1 moves up and down a hoistway that communicates the downstairs and the upstairs of a building. When installing a connecting mechanism that connects the inner door body of the lifting body and the outer door body of the hoistway so as to be integrally opened and closed when the lifting body stops at a predetermined position. The connecting mechanism includes a first connecting body including a fixed piece fixed to either the inner or outer door body and a latch receiving piece that is disposed between the door bodies and is elongated in the width direction of the door body; And a second connecting body provided with a support piece projecting from the other door body beyond the latch receiving piece to the one door body side and a latch piece provided at the tip of the support piece. The locking piece is configured to be locked inward and outward at one end in the door width direction of the locking receiving piece with the stop at a predetermined position. In addition, the first connecting body has a first loosely fitting portion that allows the locking piece to move in the vertical direction as the lifting body moves up and down, and a support piece that moves relative to the door width direction when both door bodies are opened. It is a home elevator in which a second loosely fitting portion that is movable is formed.
According to a second aspect of the present invention, the first connecting body is provided in such a manner that the locking receiving piece and the fixed piece are integrally connected to each other in the vertical direction by connecting the upper and lower edges together with the connecting piece. The household elevator according to claim 1, wherein a locking groove is formed between the locking receiving piece and the locking receiving piece, and the locking piece is loosely fitted in the locking groove.
The invention according to claim 3 is the home elevator according to claim 2, wherein the first loosely fitting portion is formed by cutting out one end portion of the connecting piece in the door width direction.
According to a fourth aspect of the present invention, there is provided the household elevator according to any one of the first to third aspects, wherein the second loosely fitting portion is formed at an intermediate portion in the vertical direction of the locking receiving piece.

According to the invention of claim 1, not only can the compactness be achieved, but also the locking area of the first and second connected bodies is not reduced, the deformation of both can be prevented, and two-story It is possible to use a highly versatile connection mechanism that can accommodate a multi-story house such as a three-story building or a four-story building.
By setting it as invention of Claim 2, the intensity | strength in the elongate direction of a latching receiving piece can be equalize | homogenized, and the further deformation | transformation prevention can be aimed at.
According to the invention of claim 3, while securing the strength of the locking receiving piece, it is not limited to a two-story house, but can accommodate a multi-story house such as a three-story house and a four-story house.
According to the invention of claim 4, reliable connection can be achieved, the strength of the connection mechanism can be increased, and the doors can be opened and closed in a state where the positions of both door bodies are restricted in the vertical direction.

Next, an embodiment of the present invention will be described based on the drawings of FIGS.
In the drawings, reference numeral 1 denotes a home elevator provided in, for example, a entrance hall in a two-story residential room, and the elevator 1 has a configuration that saves space for up to two passengers. The hoistway 2 that constitutes the elevator 1 is formed in a rectangular shape that is long in the vertical direction where the part from the first floor to the second floor ceiling communicates, and in the space on the first floor (downstairs space) in order from the lower side. It is divided into a first part 3 facing, a second part 4 facing the ceiling space between the first floor and the second floor, and a third part 5 facing the space on the second floor (upstairs space). Yes. These first, second, and third parts 3, 4, and 5 are configured to use the wall surface of the housing (housing) as one side surface and cover the three sides with a face plate.

The first part 3 facing the space on the first floor is composed of a pair of left and right side pieces 3a and 3b and a first floor outer door body 6F constituting the front side surface. The first floor outer door body 6F has a right edge supported swingably via hinges 6a arranged at a plurality of locations in the vertical direction on the front edge of the right piece 3b. It is configured to swing open / close in the front / rear direction (inward / outward direction) with the left edge as a door tip.
On the other hand, the second part 4 includes a pair of left and right side pieces 4a and 4b and a front panel body 4c.
The third portion 5 facing the space on the second floor includes a pair of left and right side pieces 5a and 5b and a second floor outer door 6S that forms the front side. The second floor outer door body 6S is supported by a right edge on the front end edge of the right piece 5b so as to be swingable through hinges 6a disposed at a plurality of locations in the vertical direction. It is configured to swing open / close in the front / rear direction (inside / outside direction) with the section as a door tip.
Here, the 3rd site | part 5 is formed in the shape which can ensure the space which arrange | positions the drive box 7 mentioned later between the upper end part of the right-and-left side piece part 5a, 5b, and the second-floor ceiling surface.
6b is a handle provided on the outer surface of the first and second floor outer doors 6F and 6S, and 6e is an operation switch provided on the right side of the first and second floor outer doors 6F and 6S.

  On the other hand, reference numeral 8 denotes a lifting body (elevator cage) formed in a box shape that moves up and down in the hoistway 2. The lifting body 8 includes upper and lower side pieces 8a and 8b and left and right side pieces 8c and 8d. Furthermore, it is configured to be surrounded by the rear piece 8e. The outer side surfaces of these pieces 8a, 8b, 8c, 8d, and 8e are set to dimensions that are close to and opposed to the inner side surfaces of the first, second, and third portions 3, 4, and 5 constituting the hoistway 2, respectively. Has been. And the right end edge part of the inner side door body 9 which comprises the front side piece of the raising / lowering body 8 is connected with the front end edge of the right side piece part 8d so that rocking | fluctuation is possible via the hinge 9a arranged in multiple numbers by the up-down direction. The inner door body 9 is configured to swing open / close in the front / rear direction (inward / outward direction) using the left edge of the inner door body 9 as a door tip.

  Further, a pair of left and right first guide rollers 10 are provided at the front end edges of the left and right side pieces 8c and 8d of the lifting body 8, and a corner portion between the left and right side pieces 8c and 8d and the rear piece 8e. Are provided with second and third guide rollers 11 and 12. On the other hand, the hoistway 2 includes a first rail portion 13 that is located at the front end edge of each of the left and right side pieces 3a, 4a, 5a, 3b, 4b, and 5b and that guides the movement of the first guide roller 10 at the rear end. The second and third rail portions 14 and 15 that are located at the edge and guide the movement of the second and third guide rollers 11 and 12 are formed in a state of communicating in the vertical direction. As a result, the elevating body 8 travels so that the first, second, and third guide rollers 10, 11, and 12 can move up and down along the first, second, and third rail portions 13, 14, and 15, respectively. Thus, the movement in the inner and outer directions is restricted (stabilized), and it can be moved up and down in a state where the movement in the left and right direction is regulated (stabilized).

Further, on the door end side end surface of the inner door body 9 of the lifting body 8, there are provided fourth guide rollers 16 that are located at a plurality of positions in the vertical direction and project to the left side. A fourth rail portion 17 that guides the front portion of the roller 16 is formed. Further, the fourth rail portion 17 allows the fourth guide roller 16 to be displaced forward when the elevating body 8 stops at the preset first and second stop positions facing the first floor or the second floor. A notch (not shown) is formed. Accordingly, the inner door body 9 of the lifting body 8 is restricted in displacement in the front-rear direction by receiving the movement guide by the fourth rail portion 17 when the lifting body 8 moves up and down. The first and second stop positions are set such that forward displacement (open swing) is allowed through the notch.
In addition, 8f is a handrail provided in the interior of the elevator body 8, 8g is an operation switch provided in the interior of the elevator body 8, and 8h is a handle provided in the interior of the elevator body 8.

On the other hand, the drive box 7 includes an opening / closing machine (electric motor) 7a having a brake device (not shown) and a winding device 7c in which three belt bodies 7b are wound in parallel in the front-rear direction. These free ends of the belt body 7b are connected to the upper piece 8a of the lifting body 8 so that the lifting body 8 is suspended by the belt body 7b. . Then, along with the forward / reverse rotation drive of the opening / closing machine 7a, the belt body 7b is wound and unwound as the winding device 7c rotates forward / reversely. As a result, the lifting body 8 moves up and down, The first and second stop positions are set to communicate with each other.
Here, of the three belt bodies 7b, the belt body 7b located at the center in the front-rear direction is provided with a slack in advance and is connected to the lift body 8, and in normal use, a pair of front and rear belt bodies 7b. Is constructed so that the lifting / lowering body 8 is suspended and moved up and down, and the central belt body 7b is not involved in the up / down movement. Thus, the central belt body 7b is configured to function as an emergency suspension body that suspends the elevating body 8 when any of the front and rear belt bodies 7b is cut. In addition, 7d is a bullet machine for absorbing the slack of the central belt body 7b.

And the connection mechanism by which this invention was each implemented is provided between the inner side door body 9 provided in the raising / lowering body 8, and the 1st floor or the 2nd floor outer door bodies 6F and 6S provided in the hoistway 2.
The inner door body 9 corresponds to one door body of the present invention, and includes a pair of left and right vertical frame bodies 9b and 9c, a pair of upper and lower horizontal frame bodies 9d and 9e, and a horizontal position located at an intermediate portion in the vertical direction. The first connecting body 18 of the present invention is formed on the outer surface of the adjacent portion between the left vertical frame body 9b and the intermediate horizontal frame body 9f that is the door tip side of the inner door body 9. Is provided. A step is formed in the adjacent portion of the left vertical frame body 9b and the intermediate horizontal body body 9f. In order to eliminate the step, the base plate is long in the left-right direction (the width direction of the door bodies 6F, 6S, 9). 19 is fixed, and the first connector 18 in which the present invention is implemented is fixed to the base plate 19. The first connecting body 18 is formed so as to be long in the door width direction and to have a U shape in a side view by bending a metal plate material cut into a predetermined shape. The fixing piece 18a fixed to the base plate 19 of the first connecting body 18 is formed with a step piece 18b which is located at the middle in the vertical direction and protrudes toward the inner door body 9, and the step piece 18b is formed on the base plate 19. In this way, predetermined gaps S are formed between the lower fixing pieces 18c and 18d and the base plate 19 located above and below the step piece 18b.

Then, a pair of upper and lower upper and lower connections protruding from the upper and lower end edges of the fixed piece 18a, that is, the respective end edges of the upper and lower fixed pieces 18c and 18d, toward the outer door bodies 6F and 6S. The pieces 18e and 18f are bent, and the upper and lower pairs of upper and lower locking receiving pieces 18g and 18h are arranged in a direction approaching each other from the protruding end edges of the upper and lower connecting pieces 18e and 18f. It is extended and formed. As a result, the first connecting body 18 is U-shaped in a side view, and the upper and lower locking receiving pieces 18g, 18h are arranged between the inner door body 9 and the first and second floor outer door bodies 6F, 6S. Thus, a locking groove 18i having a preset inner and outer groove width T is formed between the fixed piece 18a (upper and lower fixed pieces 18c and 18d). Furthermore, a door width direction elongated opening 18j communicating with the locking groove 18i is formed between the leading edges of the upper and lower locking receiving pieces 18g, 18h. The opening length H is set to a predetermined opening length H, and the opening 18j corresponds to the second loose fitting portion 18j of the present invention.
Here, the upper and lower locking receiving pieces 18g and 18h are formed from the upper and lower edge portions of the upper and lower fixing pieces 18c and 18d via the upper and lower connecting pieces 18e and 18f, respectively. It will be formed in a state where it is cantilevered at one end in the short direction of the body 18, thereby constituting the second loosely fitting portion 18j and the strength of the lower locking receiving pieces 18g, 18h, It is comprised so that it can be made substantially constant in the whole door width direction belt.

  Further, the first connecting body 18 is a door bottom side portion of the upper and lower connecting pieces 18e, 18f, and a right end corresponding to one end in the door width direction of the present invention is cut away. A first loosely fitting portion 18k that penetrates in the vertical direction and communicates with the locking groove 18i is formed at one end of the first connecting body 18 in the door width direction. Further, in the first loose fitting portion 18k, a pair of inner and outer upper guide pieces 18m that are spaced apart from each other upward are formed at the upper end edges of the upper fixing piece 18c and the upper locking receiving piece 18g serving as the upper groove entrance. Has been. Furthermore, a pair of inner and outer lower guide pieces 18n that are separated from each other downward are formed at the lower end edges of the lower fixed piece 18d and the lower locking receiving piece 18h, which are the lower groove entrances of the first loosely fitting part 18k. It is bent. The upper and lower guide pieces 18c and 18n are formed between the step piece 18b and the upper and lower guide pieces 18m and 18n. The predetermined gap S is configured to be inclined toward the inner door body 9 side.

  On the other hand, the first and second floor outer door bodies 6F and 6S provided in the hoistway 2 correspond to the other door body of the present invention, and each door body 6F and 6S is a pair of left and right vertical frame bodies 6c and 6d, respectively. It is configured with. And the 2nd connection body 20 of this invention is each provided in the inner surface of the left side vertical frame 6c used as the door-end side of the outer side door bodies 6F and 6S. The second connecting body 20 includes a support shaft 20a corresponding to the support piece of the present invention, and the support shaft 20a is formed of a cylindrical shaft body having a predetermined outer diameter R. The outer diameter R is smaller than the opening length H of the second loose fitting portion 18j (R <H) so that the second loose fitting portion 18j of the first connecting body 18 can be relatively moved in the door width direction. It has been set to be. The base end portion of the support shaft 20a is integrally fixed to a rectangular mounting plate 20b. By fixing the mounting plate 20b to a predetermined position of the left vertical frame body 6c, the support shaft 20a is fixed. The tip is set so as to protrude toward the inner door body 9 side. A locking piece 20c made of a resin plate is fixed to the projecting tip of the support shaft 20a. The locking piece 20c is freely movable in the door width direction in the locking groove 18i of the first connecting body 18. The thickness T1 of the locking piece 20c is set to be thinner (smaller) than the groove depth T of the locking groove 18i. As will be described later, the door width of the locking piece 20c is set. The other end portion in the direction is configured to be relatively movable in the up and down direction in the first loosely fitting portion 18k. Further, the length H1 of one side of the locking piece 20c is formed in a square shape that is longer than the opening length H of the second loose fitting portion 18j (H <H1), and supports the central portion of the locking piece 20c. By fixing to the shaft 20a, it is formed in a shape extending (bulging) toward both sides in the vertical direction and both sides in the door width direction (left and right direction) with respect to the support shaft 20a.

  When fixing the 2nd connection body 20 comprised in this way to the 1st floor, 2nd floor outer side door body 6F, 6S, the raising / lowering body 8 stops in said 1st or 2nd stop position, and inner side door body 9 In the state where the first and second floor outer door bodies 6F and 6S are closed, the position of the support shaft 20a is formed on the first connecting body 18, and the lower locking receiving pieces 18g and 18h (first The loose fitting portion 18k) is fixed at a position slightly away from one end portion in the door width direction and in a state of being located in the middle portion in the vertical direction of the second loose fitting portion 18j. And the length of the support shaft 20a of the second connecting body 20 protrudes to the inner door body 9 side over the first connecting body 18 provided on the inner door body 9, beyond the lower locking receiving pieces 18g, 18h. It is set to be. Thus, when the inner door body 9 and the first or second floor outer door bodies 6F and 6S are closed, the locking piece 20c of the second connecting body 20 extends in the vertical direction with the support shaft 20a as a reference. In addition, the other end portion in the door width direction of the lower portions 20d and 20e is loosely fitted in the first loose fitting portion 18k, and the inner door body is provided at one end portion in the door width direction of the upper and lower locking receiving pieces 18g and 18h. It is set to lock from the 9 side.

  When the elevating body 8 reaches a short time before stopping at the first or second stop position on the first or second floor, the connecting mechanism configured in this way is a door of the lower parts 20d and 20e above the locking piece 20c. The first loosely fitting portion 18k approaches the width direction proximal end portion and is externally fitted to the locking piece 20c from below or above the first loosely fitting portion 18k. At this time, the locking piece 20c The upper and lower portions 20d and 20e are loosely fitted to the first loosely fitting portion 18k while being guided by the lower or upper guide pieces 18n and 18m serving as the groove entrance portions of the first loosely fitting portion 18k. Is set to Then, as the elevating body 8 reaches the first and second stop positions and stops, as described above, the support shaft 20a is formed on the first connecting body 18, and the lower locking receiving piece 18g, It is set so as to be positioned between 18h (the middle portion in the vertical direction of the second loosely fitting portion 18j). In this state, as described above, on the basis of the support shaft 20a of the locking piece 20c, the lower side portion 20d, 20e the other end side portion in the door width direction constitutes the first loosely fitting portion 18k, The lower side latch receiving pieces 18g and 18h are stacked on one end in the door width direction from the inner door body 9 side, and are configured to be locked in the inner and outer directions.

  And in the 1st or 2nd stop position, the 4th guide roller 16 is facing the notch of the 4th rail 17, and either one of the inner side door body 9 and the 1st floor or the 2nd floor outer door bodies 6F and 6S. When the opening / closing operation is performed, the inner door body 9 and the first-floor or second-floor outer door bodies 6F and 6S are configured to be integrally opened and closed. In this case, since the inner door body 9 and the first floor or second floor outer door bodies 6F and 6S have different swing connection positions, as shown in FIG. 7, the first and second connection bodies 18 and 20 are doors. Although the second connecting body 20 is relatively displaced in the width direction, the support shaft 20a is located between the lower locking receiving pieces 18g and 18h on the first connecting body 18 at the first and second stop positions. When the opening operation is performed from this state, the support shaft 20c is displaced toward the other end side in the door width direction when the opening operation is performed. 9 and the first floor or the second floor outer door bodies 6F and 6S are set to be relatively displaced. In the process of this relative displacement, the upper and lower portions 20d and 20e of the locking piece 20c are displaced while maintaining the locked state with the upper locking receiving pieces 18g and 18h on the first connecting body 18. Thus, the inner door body 9 and the first floor or second floor outer door bodies 6F and 6S are configured to be opened and closed while being connected (internal and external locking). Yes. At this time, the support shaft 20a of the second connecting body 20 moves in the second loosely fitting portion 18j of the first connecting body 18, thereby restricting the vertical movement of the door bodies 9, 6F or 6S. The body 9, 6F or 6S can be opened and closed with no back and forth rattling.

In the present embodiment configured as described, the elevator 1 winds and unwinds the belt body 7b by the winding device 7c based on the operation of the operation switches 6e and 8g. Go up and down in 2 and communicate between the first and second stop positions on the first and second floors. In this structure, the inner door body 9 provided on the lifting body 8 side and the first or second floor outer door bodies 6F and 6S provided on the hoistway 2 side have the lifting body 8 stopped at the first and second stop positions. As a result, it is integrally connected via the connecting mechanism to perform opening / closing swinging. In this case, the second connecting body 20 among the first and second connecting bodies 18 and 20 constituting the connecting mechanism. Is composed of a support shaft 20a and a locking piece 20c fixed to the tip end of the support shaft 20a, and upper and lower side portions 20d and 20e extending from the support shaft 20a are located above and below the first connecting body 18. It is configured to be locked (connected) by being locked to the locking receiving pieces 18g and 18h. As a result, it is not necessary to increase the size of both pieces as in the conventional connecting mechanism of the L-shaped locking piece in plan view and the U-shaped locking receiving piece in plan view, and the size can be reduced.
Moreover, the first and second connecting bodies 18 and 20 do not become smaller in mutual locking area in the process of opening the doors 9, 6 F and 6 S. Even in a state where the second-floor outer door bodies 6F and 6S are opened and a load easily acts on each of the doors 9, 6F and 6S, the locking area between the first and second connecting bodies 18 and 20 can be determined. Therefore, the deformation of the first and second coupling bodies 18 and 20 (the locking receiving pieces 18g and 18h and the locking piece 20c) can be prevented.
Furthermore, because the door width direction other end side portion of the locking piece 20c is fitted into the first loosely fitting portion 18k so as to be relatively movable in the vertical direction, not limited to a two-story house, a three-story building, It can accommodate a multi-storey house such as a four-story building, and can be a highly versatile connection mechanism.

  In addition, in the embodiment in which the present invention is implemented, the first connecting body 18 is formed in a U-shape when viewed from the side, and the upper and lower locking receiving pieces 18g and 18h are the upper and lower edges of the fixed piece 18. Is bent in a state extending from the bottom, and is not cantilevered in the long direction of the locking groove as in the prior art, but is cantilevered in the short direction. As a result, not only the adjustment of the first and second connecting bodies 18 and 20 is facilitated, but also the strength in the longitudinal direction of the upper and lower locking receiving pieces 18g and 18h is made uniform, so that the conventional connecting mechanism As described above, it is possible to eliminate the problem that the locking piece or the locking receiving piece is easily deformed in the fully opened state.

  In this case, the first loosely fitting portion 18k is formed by cutting out the connecting pieces 18e, 18f which are long in the door width direction provided to ensure the strength of the upper and lower locking receiving pieces 18g, 18h. Therefore, the strength of the latch receiving pieces 18g and 18h can be ensured, but it is not limited to a two-story house, but can be applied to a multi-story house such as a three-story or four-story house.

  Further, in this structure, the first connecting body 18 is provided with the second loosely fitting portion 18j between the pair of upper and lower locking receiving pieces 18g, 18h. 20d and 20e can be locked to the upper and lower locking receiving pieces 18g and 18h, respectively, so that a large locking area can be secured, the connection is ensured, and the strength of the connecting mechanism can be increased. In addition, since the support shaft 20c moves relative to the second loosely fitting portion 18j, the vertical movement of the door bodies 9, 6F, 6S is restricted, and the vertical rattling can be prevented in the opening / closing operation. .

Of course, the present invention is not limited to the embodiment described above, and the first and second connecting bodies may be attached to the inner door body and the outer door body, respectively. It is also possible to provide the second connecting body on the inner door body on the outer door body.
Further, the first connecting body does not necessarily need to be provided with a pair of upper and lower locking receiving pieces as in the above-described embodiment, and may have a configuration in which a single locking receiving piece is provided.
Further, in the present embodiment, the second connecting body is formed in a quadrangular shape using a resin plate body. However, the second connecting body may be formed in a circular shape, and further, a roller supported by a support piece may be used. Is possible.

1A and 1B are a front view in which a front portion of a home elevator is cut away and a side view of the home elevator, respectively. 2A and 2B are a front view and a side view of the lifting body, respectively. It is a perspective view of a 1st coupling body. It is a plane sectional view of a household elevator. It is an enlarged view of the principal part in FIG. 6A and 6B are enlarged side views for explaining the coupling mechanism, respectively, and an XX cross-sectional view in FIG. 6A. It is a top view explaining the open rocking | fluctuation of the inner side door body and outer side door body which were connected by the connection mechanism.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Home elevator 2 Hoistway 3 First part 6F First floor outer door body 6S Second floor outer door body 8 Lift body 9 Inner door body 18 First connection body 18e Upper connection piece 18g Upper lock receiving piece 18i Lock groove 18j First Two loose fitting portions 18k First loose fitting portion 20 Second connecting body 20a Support shaft 20c Locking piece 20d Upper piece

Claims (4)

  A home elevator provided with a lifting body that lifts and lowers a hoistway that communicates between the downstairs and the upper floor of a building, and an inner door body of the lifting body and an outer door body of the hoistway when the lifting body stops at a predetermined position In order to provide a connecting mechanism for connecting the door body to open and close integrally, the connecting mechanism is arranged between a fixed piece fixed to either the inside or outside door body and both door bodies, and is long in the width direction of the door body. A first connecting body provided with a shaped locking receiving piece, a support piece projecting from the other door body to the one door body side beyond the locking receiving piece, and a locking piece provided at the tip of the supporting piece And, with the stop at a predetermined position of the lifting body, and configured so that the locking piece is locked inward and outward in the door width direction one end of the locking receiving piece, The first connecting body includes a first loosely fitting portion that allows the locking piece to move in the vertical direction as the lifting body moves up and down, and an opening of both door bodies. Household elevator and a second loosely fitting portion to freely move relative to the Tobirahaba direction are formed a supporting piece along with.   The first connecting body is provided so that the vertical receiving edge and the fixing piece are integrally connected to each other in the vertical direction by connecting the edges in the vertical direction with the connecting piece. The household elevator according to claim 1, wherein a locking groove is formed therebetween, and a locking piece is loosely fitted in the locking groove.   The household elevator according to claim 2, wherein the first loosely fitting portion is formed by notching one end portion of the connecting piece in the door width direction.   The household elevator according to any one of claims 1 to 3, wherein the second loosely fitting portion is formed at an intermediate portion in the vertical direction of the latch receiving piece.

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