JP2024018514A - Lift exclusively for small cargo - Google Patents

Abstract

To provide a lift exclusively for a small cargo, in which a guide rail can be easily and precisely installed in a hoistway.SOLUTION: A lift exclusively for a small cargo comprises four guide rails 2 set up in a hoistway 1, a car 3 that transports a small cargo that can be raised and lowered along each guide rail 2, a counterweight 5 connected to the car 3 via a rope 4, and a lifting drive device 6 that operates the rope 4 to drive the car 3 up and down. Each guide rail 2 has a frame structure supported on all sides by left and right RG brackets 8 that are continuous in a rectangular shape and front and rear cross members 9. The left and right RG brackets 8 are provided with positioning retainers 11A1, 11A2, 11B1, and 11B2 that define the distance between the pair of guide rails 2 disposed on one side wall of the hoistway 1.SELECTED DRAWING: Figure 1

Description

TECHNICAL FIELD The present invention relates to a lift for small parcels.

BACKGROUND ART As one type of elevator installed in a building, a small cargo elevator is known that specifically transports relatively lightweight and small cargo. In general, this type of elevator for small cargo has a hoistway with multiple stopping positions, a basket for carrying small cargo that can be raised and lowered along a guide rail installed in the hoistway, and a rope for transporting small cargo. It is equipped with a counterweight connected to the car and a lifting drive device that operates a rope to move the car up and down. Luggage loading and unloading ports are installed at multiple stopping positions for loading and unloading small items into and out of the car. (For example, see Patent Document 1).

Conventionally, in such cargo elevators, when installing guide rails in the hoistway that serve as elevator tracks for the car and counterweight, the guide rails are bolted to support brackets that are fixed to the hoistway wall in advance. . At that time, if the building structure is RC (reinforced concrete construction), the support brackets are fixed to the hoistway wall with anchor bolts, and if the building is a steel structure, multiple horizontal beams (intermediate beams) are attached to the hoistway wall. However, support brackets were welded and fixed to these horizontal crosspieces. In addition, if it is difficult to fix the support bracket with anchor bolts or attach a horizontal crosspiece, install a dedicated steel structure inside the hoistway, and bolt the support bracket to the horizontal crosspiece of this steel structure to guide it. Rails were being laid.

JP2015-229565A

In the conventional technology described above, the guide rail is bolted to the support bracket fixed to the shaft wall in advance, and the horizontal distance accuracy (rail gauge accuracy) required for the guide rail depends on the mounting position of the support bracket. Therefore, the difficulty of fixing the support bracket to the hoistway wall is high, and there is a problem in that considerable skill level of the worker and construction time are required to ensure accuracy. In addition, if a dedicated steel structure is erected inside the hoistway and guide rails are installed on support brackets bolted to the horizontal beams of this steel structure, the construction is difficult and requires a lot of time. In addition to this issue, there was also the issue of requiring space to install a steel structure within the hoistway.

The present invention was made in view of the above circumstances, and its purpose is to provide an elevator exclusively for small cargo, in which guide rails, which serve as elevator tracks for the car and counterweight, can be easily and precisely installed in the hoistway. Our goal is to provide the following.

In order to achieve the above object, one aspect of the small cargo elevator according to the present invention includes a plurality of guide rails installed vertically in a hoistway, and a small cargo transport elevator that can be raised and lowered along the plurality of guide rails. A car, a counterweight connected to the car via a rope, and an elevating drive device that operates the rope to drive the car up and down, and the plurality of guide rails are arranged in a continuous rectangular shape. The frame structure is self-supporting using two beam members, and the beam member is provided with a positioning retainer that defines the distance between the pair of guide rails arranged on one side wall of the hoistway. It is characterized by being

According to the small cargo elevator of the present invention, it is possible to easily and precisely install the guide rail, which serves as the elevator track for the car and the counterweight, in the hoistway. Note that problems, configurations, and effects other than those described above will be made clear by the description of the embodiments below.

FIG. 1 is an external perspective view of a small luggage elevator according to an embodiment. FIG. 1 is a longitudinal cross-sectional view of a small luggage elevator according to an embodiment. FIG. 1 is a cross-sectional view of a small luggage elevator according to an embodiment. 4 is a detailed view of part A in FIG. 3. FIG. It is a perspective view of an RG bracket and a cross member. FIG. 3 is a perspective view showing how the guide rail is attached to the pit base. FIG. 3 is a perspective view showing the work of attaching the RG bracket and cross member to the guide rail. It is an explanatory view showing a connection part of divided rails which constitute a guide rail.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is an external perspective view of a lift for small items according to an embodiment, FIG. 2 is a vertical sectional view of an elevator for small items according to an embodiment, FIG. 3 is a cross-sectional view of an elevator for small items according to an embodiment, and FIG. is a detailed view of part A in FIG. 3. Note that for convenience of explanation, the X-axis, Y-axis, and Z-axis are defined as shown in FIG. 1, respectively.

The parcel elevator according to this embodiment is configured to transport parcels between the first floor and the second floor. As shown in FIGS. 1 and 2, this elevator for small cargo has a plurality of (for example, four) guide rails 2 installed vertically in a hoistway 1, and small cargo that can be moved up and down along each guide rail 2. It is equipped with a transportation cage 3, a counterweight 5 connected to the cage 3 via a rope 4, and a lifting drive device 6 that operates the rope 4 to drive the cage 3 up and down. On Road 1, the first and second floors are set as stopping positions.

The building structure of the building in which the hoistway 1 is provided is not particularly limited, and may be, for example, an RC (reinforced concrete structure) or a steel frame structure. At the stop positions set on the first and second floors of the hoistway 1, there are provided baggage loading/unloading ports 7 for loading and unloading small luggage into and out of the car 3. The baggage inlet/outlet 7 is defined by a gate-shaped three-sided frame in which a pair of left and right side frames 7a, 7b and an upper frame 7c are continuous, and a sill 16 connected to the lower ends of both side frames 7a, 7b. On the back side of the loading/unloading port 7, a vertically opening loading/unloading door 7e is provided. Further, on the upper frame 7c of the baggage inlet/outlet 7, an operation panel 7f having operation buttons for elevating and lowering commands, etc. is installed.

The guide rail 2 is made of a square steel tube, and the car 3 is guided by the guide rail 2 and moves up and down within the ascending and descending path of the hoistway 1. Two guide rails 2 are installed along both walls of the hoistway 1 facing each other with the car 3 in between, a total of four guide rails 2, two of which also serve as guides for the counterweight 5. Although the details will be described later, the four guide rails 2 are connected to the hoistway as a frame structure supported on all sides by a pair of left and right rail gauge brackets (hereinafter referred to as RG brackets) 8 and a pair of front and rear cross members 9. It is located inside.

The car 3 is provided with a vertically opening type car door 3a for loading and unloading small items, and the car 3 moves up and down within the up-and-down path with the car door 3a closed. The car door 3a is provided with a mechanism that is linked to the opening/closing operation of the loading/unloading door 7e provided at the luggage loading/unloading port 7. When the car 3 is in a stopped position corresponding to the loading/unloading port 7, When the loading/unloading door 7e is opened/closed, the car door 3a is opened/closed in conjunction with the opening/closing operation.

The lifting drive device 6 includes a sheave that drives the rope 4 by frictional force, a motor that drives the sheave, a speed reducer, and the like. The elevator drive device 6 is arranged in a machine room 10 provided above the hoistway 1, and inside the machine room 10 there is a device that controls the operation of the elevator drive device 6 based on commands from an operation panel 7f. A control panel 19 is arranged.

As shown in FIGS. 3 and 4, the car 3 is guided in the vertical direction by four guide rails 2, two of which are also used as guide rails for the counterweight 5. The car 3 is in contact with the guide rail 2 via a car guide shoe 25, and the counterweight 5 is in contact with the guide rail 2 via a CW guide shoe 26.

Next, the frame structure of the guide rail 2 will be explained using FIGS. 5 to 8. Here, FIG. 5 is a perspective view of the RG bracket 8 and cross member 9, FIG. 6 is a perspective view showing how the guide rail 2 is attached to the pit base, and FIG. 7 is a perspective view of how the RG bracket 8 and cross member 9 are attached to the guide rail 2. A perspective view showing the work, and FIG. 8 is an explanatory view showing a connecting portion of divided rails that constitute the guide rail 2.

As shown in FIG. 5, the pair of RG brackets 8 are long plate-shaped beam members, and the distance between the opposing guide rails 2 is defined by these RG brackets 8.

One RG bracket 8 includes an L-shaped retainer 11A1 that defines the distance between opposing guide rails 2 in the Y-axis direction (depth direction), and an L-shaped retainer 11A1 that defines the distance between opposing guide rails 2 in the X-axis direction (width direction). Two defining plate-shaped retainers 11A2 are provided at adjacent positions. The two retainers 11A1 are fixed to predetermined positions of the RG bracket 8 by tightening bolts, and the length between the protruding pieces that stand up from these retainers 11A1 is set to the distance between the opposing sides of the guide rail 2 in the Y-axis direction. There is. The two retainers 11A2 are fixed to the plate surface of the RG bracket 8 by welding at positions inside the projecting pieces of the retainer 11A1.

The other RG bracket 8 includes a U-shaped (concave) retainer 11B1 that defines the distance between the guide rails 2 in the Y-axis direction, and an L-shaped retainer 11B1 that defines the distance between the guide rails 2 in the X-axis direction. Two retainers 11B2 are provided at adjacent positions. The two retainers 11B1 are fixed to predetermined positions of the RG bracket 8 by tightening bolts, and the length between the protruding pieces that stand up from the inside of these retainers 11B1 is set to the distance between the opposing sides of the guide rail 2 in the Y-axis direction. has been done. The two retainers 11B2 are bolted to projecting pieces that stand up from the inside of the retainer 11B1. Further, a long hole 11a extending horizontally is bored in the projecting piece that stands up from the outside of the retainer 11B1, and as will be described later, the RG bracket 8 and the cross member 9 are fixed by bolts inserted through the long hole 11a. It has become so.

Note that the fixing means for providing the retainers 11A1, 11A2 and the retainers 11B1, 11B2 to the RG bracket 8 is not limited to the above embodiment, and for example, the retainers 11A1 and 11B1 may be fixed using welding instead of bolting. Alternatively, it may be formed integrally with the RG bracket 8 using press working or the like.

The pair of cross members 9 are long plate-shaped beam members, and these cross members 9 are connected to the ends of the left and right RG brackets 8 by bolting.

A frame structure of the guide rail 2 is formed by combining the pair of RG brackets 8 and the pair of cross members 9 in a frame shape. As shown in FIG. 6, the frame structure of the guide rail 2 is formed based on a pit base 12 placed in a pit of the hoistway 1. The pit base 12 sets the basic dimensions of the frame structure, and four base members are connected via rail receivers 13 in a frame shape. The pit base 12 is integrated in advance in the factory with the dimensional accuracy of each part ensured.The pit base 12 is fixed in the pit with the levelness properly adjusted, and four The guide rail 2 is tightly bolted to two surfaces of the corresponding rail receiver 13.

Here, each guide rail 2 is composed of a plurality of divided rails connected via a connecting part, and the number of divided divided rails and the individual lengths are determined based on the height of the hoistway 1 (Z-axis (direction) is set appropriately according to the dimensions, the hall floor position of the stopping floor, etc. In this embodiment, a guide rail 2 whose length is set from the bottom of the pit to near the middle between the first and second floors is used as the lowest divided rail, and these four guide rails (divided rails) 2 are installed at the four corners of the pit base 12.

In this way, the left and right RG brackets 8 and the front and rear cross members 9 are assembled at a height near the hall floor on the first floor for each of the lowermost guide rails (divided rails) 2 erected at the four corners of the pit base 12. It is attached. To explain the process of assembling these RG brackets 8 and cross members 9, as shown in FIG. Temporarily fix. At that time, by bringing the projecting pieces of the retainers 11A1 and 11B1 provided on the left and right RG brackets 8 into close contact with the two sides of the two corresponding guide rails 2, the depth direction of each guide rail 2 (Y-axis direction) The facing distance and vertical parallelism are defined with high precision.

At the same time, the retainers 11A2 and 11B2 provided on the left and right RG brackets 8 are brought into close contact with the surface of the guide rail 2 that is perpendicular to the surface on which the protrusions of the retainers 11A1 and 11B1 are brought into close contact. In this state, while the RG template 15 is brought into close contact with the two guide rails 2, the front and rear cross members 9 are bolted to the left and right RG brackets 8 in the width direction (X-axis direction) of each guide rail 2. The distance between the opposing sides is defined. At that time, since the bolt insertion hole provided in the retainer 11B1 is a long hole 11a whose long axis is in the horizontal direction, the bolt fastening position of the RG bracket 8 and cross member 9 can be adjusted using this long hole 11a as an adjustment allowance. By making fine adjustments, the distance between opposing guide rails 2 in the X-axis direction is defined with high precision.

A sill 16 is attached to the front cross member 9 whose height is adjusted near the hall floor on the first floor, and this sill 16 is connected to the lower end (floor position) of the luggage entrance 7 on the first floor. (See Figure 1). Then, after bolting the cross member 9 to the RG bracket 8, remove the RG template 15, firmly fix the retainers 11A1 and 11B1 of the left and right RG brackets 8 to the corresponding guide rails 2, and then remove the clamper 14. The guide rail 2 itself is made into a frame, and a self-supporting structure of the guide rail 2 is formed. Then, in order to prevent the guide rail 2 assembled to the frame structure from swinging, steady bolts (not shown) screwed into the left and right RG brackets 8 and the front and rear cross members 9 are pushed into the inner wall of the hoistway 1. guess.

At the height position of the upper frame 7c of the luggage entrance 7 on the first floor, the left and right RG brackets 8 of the second stage and the front and rear cross members 9 are attached to each of the lowermost guide rails 2 assembled to the frame structure. is assembled using the same procedure as above. Here, the sill 16 is not attached to the second stage cross member 9, and this cross member 9 is bolted to the upper frame 7c of the luggage entrance 7 on the first floor.

Each lowermost guide rail (divided rail) 2 assembled into the frame structure is connected to the next guide rail (divided rail) 2 near the middle between the first and second floors, and the upper and lower parts of this joint are The left and right RG brackets 8 of the third stage and the front and rear cross members 9 are assembled to each guide rail 2 in the same manner as described above. As shown in FIG. 8, the retainer 11B1 (or 11A1) and plate nut 17 of the RG bracket 8 are arranged on both sides of the two vertically divided guide rails 2 at this joint, and these retainers 11B1 (or 11A1) and plate nut 17 are fastened together with bolts 18. Thereby, the bolting of the RG bracket 8 and the plate nut 17 to the guide rail 2 can be performed simultaneously. Note that the sill 16 is not attached to the third stage cross member 9.

The left and right RG brackets 8 and the front and rear cross members 9 of the 4th, 5th, and 6th stages are assembled using the same procedure as above for the next stage guide rail 2 connected to the bottom divided rail. It is attached. Here, a sill 16 is attached to the fourth stage cross member 9, and this sill 16 is connected to the lower end of the luggage entrance 7 on the second floor. Further, in order to prevent the guide rail 2 of the next stage from swinging, a steadying bolt screwed into the fourth stage RG bracket 8 and cross member 9 is abutted against the inner wall of the hoistway 1. Further, the sills 16 are not attached to the cross members 9 of the fifth and sixth stages, and the cross members 9 of the fifth stage are bolted to the upper frame 7c of the luggage opening 7 on the second floor.

As shown in FIG. 1, a pair of beam receivers 20 are bolted to the top end of the next stage guide rail (divided rail) 2. The beam receiver 20 is made of steel and has an L-shaped cross section, and is arranged parallel to the left and right RG brackets 8 (in the Y-axis direction). Further, a pair of machine beams 21 are bolted together to bridge the left and right beam receivers 20. The machine beam 21 is made of steel and has a C-shaped cross section, and is arranged parallel to the front and rear cross members 9 (in the X-axis direction).

Four pillars 22 are erected on the left and right beam receivers 20, handrails 23 are installed on these pillars 22, and a floorboard 24 is laid between the left and right beam receivers 20. As a result, a machine room 10 is defined above the hoistway 1 for accommodating the elevating drive device 6 and the like. Here, the top end of each guide rail 2, which forms the floor surface of the machine room 10, has a strong frame structure with the beam receivers 20 and machine beams 21 orthogonal to each other, so that the heavy lifting drive device 6 cannot be used. It can be stably supported on the machine beam 21.

Further, inside the guide rail 2 of the frame structure, a car guide shoe 25 attached to the frame of the car 3 is in contact with the side surfaces of the four guide rails 2, and is in contact with the frame of the counterweight 5. The attached CW guide shoes 26 are in contact with the sides of the two guide rails 2 (see FIG. 4). Thereby, the car 3 is guided in the vertical direction by the four guide rails 2, and the counterweight 5 is guided in the vertical direction by the two guide rails 2. Further, one end of a rope 4 hung over a sheave of the lifting drive device 6 is connected to the car 3, and the other end of the rope 4 is connected to a counterweight 5.

In the small cargo elevator configured in this way, when a lift command is issued from the operation panel 7f provided at the baggage inlet/outlet 7, the control panel 19 disposed in the machine room 10 receives the lift command. The elevator drive device 6 is operated so that the car 3 arrives at the stop floor corresponding to the baggage entrance 7. At this time, by rotating the sheave of the lifting drive device 6 and driving the rope 4 by the frictional force between the sheave and the rope 4, the car 3 is guided by the four guide rails 2 and moves up and down in the hoistway 1. Accordingly, the counterweight 5 is guided by the two guide rails 2 and moves up and down in the opposite direction to the car 3.

As explained above, the parcel elevator according to the present embodiment includes four guide rails 2 erected in the hoistway 1 and a basket for transporting parcels that can be raised and lowered along each guide rail 2. 3, a counterweight 5 connected to the car 3 via a rope 4, and a lifting drive device 6 that operates the rope 4 to drive the car 3 up and down, and each guide rail 2 is continuous in a rectangular shape. It has a frame structure that can stand on its own using left and right RG brackets 8 and front and rear cross members 9. Since positioning retainers (11A1, 11A2, 11B1, 11B2) are provided to define the distance, the RG bracket 8 and cross member 9, which ensure dimensional accuracy, can be assembled to each guide rail 2 on site. The frame-structured guide rail 2 can be easily and precisely installed in the hoistway 1. This eliminates the need to fix support brackets to the hoistway wall or erect a dedicated steel structure, making it possible to reduce the construction time and number of parts for guide rail 2, regardless of the type of building structure. .

In addition, in the small cargo elevator according to the present embodiment, one of the guide rails 2 includes a retainer (first regulating portion) 11A1 that defines the distance between the opposing guide rails 2 in the depth direction, and a retainer 11A1 that defines the distance between the guide rails 2 in the width direction. A retainer (second defining part) 11A2 that defines the distance between opposing faces is provided, and a retainer (first defining part) 11B1 that defines the distance between opposing faces in the depth direction of the guide rail 2 is provided on the other guide rail 2; A retainer (second defining portion) 11B2 is provided that defines the distance between the opposing guide rails 2 in the width direction. As a result, the retainers 11A1 and 11B1, which are the first regulating portions, are brought into close contact with one of the two mutually orthogonal surfaces of the guide rail 2, and the retainers 11A2, 11B2, which are the second regulating portions, are brought into close contact with the other surface. The distance between opposing rails 2 in the depth direction and width direction can be easily and highly accurately defined.

In addition, in the small luggage elevator according to the present embodiment, since the retainer 11B fixed to one RG bracket 8 is provided with a long hole 11a extending horizontally, the front and rear cross members 9 can be connected to the left and right RG brackets. When bolting the RG bracket 8 and the cross member 9, the bolting position between the RG bracket 8 and the cross member 9 can be adjusted with high precision using the long hole 11a as an adjustment allowance.

In addition, in the elevator for small cargo according to the present embodiment, a plurality of stopping positions are set in the elevator path of the hoistway 1, and a small cargo is placed in and out of the car 3 at each of the plurality of stopping positions. Since the loading/unloading port 7 is provided and the cross member 9 is bolted to the upper frame 7c of the loading/unloading port 7 on each floor, the guide rail 2 is stably supported at the building opening of the loading/unloading port 7 on each floor. can do. Note that although the parcel elevator according to this embodiment is configured to transport parcels between the first and second floors, the number of floors at which it stops is not limited to the second floor, but may be the third floor or higher. It's okay.

In addition, in the elevator for small cargo according to the present embodiment, a pit base 12 integrated into a frame shape via a rail receiver 13 is placed in a pit of the hoistway 1, and a lowermost stage divided into a plurality of parts is installed. Since the guide rails 2 are erected at the four corners of the pit base 12 in close contact with the rail receivers 13, the pit base 12, which has been manufactured with dimensional accuracy in advance, is transported to the site and installed in the hoistway 1. By placing the guide rail 2 in the pit, the guide rail 2 having a frame structure defined with high dimensional accuracy can be easily installed in the hoistway 1.

In addition, in the small cargo elevator according to the present embodiment, the plate nut 17 is bolted to two vertically continuous divided rails via a joint, and the plate nut 17 and the retainer of the RG bracket 8 11B (or 11A) are fastened together with bolts 18, it is possible to smoothly connect two vertically continuous divided rails.

In addition, in the elevator for parcels according to this embodiment, a pair of beam receivers 20 are fixed to the top end of the uppermost guide rail (divided rail) 2, and a machine beam 21 is constructed between these beam receivers 20. Since the elevator drive device 6 is placed in the machine room 10 on the machine beam 21, the floor surface of the machine room 10 is strengthened by the beam receiver 20 and the machine beam 21, which are perpendicular to each other. It has a high frame structure, and the heavy lifting drive device 6 can be stably supported on the floor of the machine room 10.

Note that the present invention is not limited to the above-described embodiments, and can be modified in various ways without departing from the gist of the present invention, and all technical matters included in the technical idea described in the claims are included in the present invention. Subject to invention. Although the embodiments described above are preferred examples, those skilled in the art can realize various alternatives, modifications, variations, or improvements based on the content disclosed in this specification. These are within the scope of the appended claims.

1 Hoistway 2 Guide rail 3 Car 3a Car door 4 Rope 5 Counterweight 6 Lifting drive device 7 Loading/unloading port 7a, 7b Side frame 7c Upper frame 7e Loading/unloading door 7f Operation panel 8 RG bracket (beam member)
9 Cross member (beam member)
10 Machine room 11A1, 11B1 Retainer (first regulation part)
11A2, 11B2 Retainer (second regulation part)
11a Elongated hole 12 Pit base 13 Rail receiver 14 Clamper 15 RG template 16 Sill 17 Plate nut 18 Bolt 19 Control panel 20 Beam receiver 21 Machine beam 22 Pillar 23 Handrail 24 Floor board 25 Car guide shoe 26 CW guide shoe

Claims (8)

Multiple guide rails installed in the hoistway,
A basket for transporting small items that can be raised and lowered along the plurality of guide rails;
a counterweight connected to the cage via a rope;
a lifting drive device that operates the rope to drive the car up and down;
Equipped with
The plurality of guide rails have a self-supporting frame structure using four continuous rectangular beam members,
The beam member is provided with a positioning retainer that defines a distance between the pair of guide rails arranged on one side wall of the hoistway.
A lift exclusively for small luggage. In the elevator for small luggage according to claim 1,
Of the four beam members, two of the beam members are rail gauge brackets fixed to the opposing guide rails, and the remaining two beam members are cross members connected to the paired rail gauge brackets. and
The retainer is provided on each of the two rail gauge brackets,
A lift exclusively for small luggage. In the parcel elevator according to claim 2,
The retainer has a first defining part that defines a distance between the opposing guide rails in the depth direction, and a second defining part that defines the distance between the opposing guide rails in the width direction,
The first regulating portion is in close contact with one of the two mutually orthogonal surfaces of the guide rail, and the second regulating portion is in close contact with the other surface.
A lift exclusively for small luggage. In the elevator for small luggage according to claim 2,
At least one end of the cross member is fixed to the rail gauge bracket with a bolt inserted through a horizontally extending elongated hole.
This elevator is exclusively for small luggage. In the parcel elevator according to claim 2,
A plurality of stopping positions are set on the hoisting route of the hoistway, and each of the plurality of stopping positions is provided with a baggage loading/unloading port for loading and unloading small parcels from the car,
The cross member is bolted to the upper frame of the baggage entrance.
A lift exclusively for small luggage. In the parcel elevator according to claim 2,
A pit base integrated into a frame shape is placed in the pit of the hoistway via rail receivers at the four corners,
The guide rail consists of a plurality of divided rails connected in the vertical direction via a connecting part,
The lowermost divided rail is erected at the four corners of the pit base in close contact with the rail receiver,
A lift exclusively for small luggage. In the elevator for small luggage according to claim 6,
A plate nut is bolted to the two divided rails that are continuous via the connecting portion,
the plate nut and the retainer are fastened together;
This elevator is exclusively for small luggage. In the elevator for small luggage according to claim 1,
A pair of beam receivers are fixed to the top ends of the plurality of guide rails, and a machine beam is installed between these beam receivers,
The lifting drive device is disposed inside the machine room while being placed on the machine beam.
This elevator is exclusively for small luggage.