JP2010089918A - Elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an elevator for providing excellent conformity with a building to be set, and easily corresponding to the number of floors of the building with reduced cost. <P>SOLUTION: The elevator includes a cage guide frame 1 having a frame body for the lowermost floor provided at least corresponding to a first floor of the building, a frame body for the uppermost floor provided corresponding to the uppermost floor of the building, a frame body for the middle floor provided corresponding to middle floors as necessary to separate or joint freely, a driving drum 6 for a cage that can rotate around a vertical shaft inside the cage guide frame formed by piling up the frame body for the lowermost floor at the lowermost, the frame body for the uppermost at the uppermost, and the frame body for the middle floor mounted therebetween as necessary in a vertical direction and fixing them, and has a spiral carry screw mechanism at an outer circumference, and engagement projections 10 formed at the cage guide frame at certain intervals within the vertical length of the driving drum for the cage to be apart from each other in the vertical direction to interfere with the carry screw mechanism of the driving drum for the cage. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an elevator as a transport device that transports people and luggage in the vertical direction, and more particularly to a simple elevator that is safe and excellent in economic efficiency.

Large elevators used in publicly known buildings, etc., roll up a belt and move the cage attached to the end of this belt up and down. Although fluctuations occur and absorbing the position fluctuations is an extremely important function, an extremely expensive device is required to perform such functions.
On the other hand, as a simple elevator that does not use a belt as described above, for example, Patent Document 1 includes a guide (fixed shaft) having an outer spiral portion and a rotor screwed into the guide, and the rotor Is provided on the lifting body and is driven by a motor provided on the lifting body.
Patent Document 2 discloses a technology in which a large number of support rollers are provided in the vertical direction, a drum having a spiral meshing with the support roller is provided on the heel side, and the heel is moved up and down by rotating the drum. .
Both of these prior arts are a cage drive that is vertically guided by a vertical guide rail, and that is attached to the cage and is rotatable about a vertical axis and has a spiral carrying screw mechanism on the outer periphery. A drum, a drum motor for rotationally driving the cage driving drum, and an engagement provided on the cage guide frame at a distance equal to or shorter than the length of the driving drum in the vertical direction and spaced apart vertically. An elevator comprising a protrusion and a roller-like engagement protrusion that interferes with the carrying screw mechanism of the drive drum.
On the other hand, such a conventionally known elevator is provided with a spiral carrying screw mechanism on the worm-shaped outer periphery, and the screw also carries the cage vertically by carrying action. Since the cage is transported only by carrying the screw without using it, the stop position accuracy is remarkably high, and there is an excellent advantage that expensive equipment is not required.
However, because there is a limit to speeding up, it is not suitable for high-rise buildings, etc., and it can be considered an elevator that is excellent for transportation in homes or buildings that are not so expensive.
JP 2007-223808 A JP 7-109084 A

However, when considering such a simple elevator for home use, it is important that it can be easily incorporated as a part of a building. However, the conventional simple elevator is simply a spiral carrying screw mechanism around the worm-shaped outer periphery. It has the advantage that it has excellent stopping position accuracy, but it has only been proposed to improve the cage lifting drive system, and has various dimensions. It is a structure that cannot be easily attached to a house with two or more floors (the basement can also be considered).
In addition, when the building is a two-story building, a three-story building or more, and when including the basement, it is not a cost-effective structure that can easily follow the number of floors of the building.
Accordingly, an object of the present invention is to solve the problems in the conventional home elevator as described above, and it has good consistency with the building to be attached, and can be easily followed by the number of floors of the building, so that it does not cost much. Is to provide.

In order to achieve the above object, the present invention provides:
Provided corresponding to at least the lowest floor frame provided corresponding to the first floor of the building, the uppermost frame provided corresponding to the uppermost floor of the building, and the intermediate floor provided as necessary. A cage guide frame having a frame for an intermediate floor, which is separable and connectable, with the frame for the lowermost floor at the bottom, the frame for the uppermost floor at the top, and for the intermediate floor in between A cage guide frame that is fixed by stacking up and down by attaching the frame as required,
A vertical guide rail provided vertically in the cage guide frame;
A cage guided vertically by the vertical guide rail;
A cage drive drum mounted on the cage and rotatable about a vertical axis and having a spiral carrying screw mechanism on the outer periphery;
A drum motor for rotationally driving the cage driving drum;
Engagement protrusions provided vertically apart from the cage guide frame at regular intervals within the vertical length of the cage drive drum so as to interfere with the carrying screw mechanism of the drive drum;
It is comprised as an elevator provided with.
As an example of the engagement protrusion in the elevator as described above, there is an engagement protrusion formed by a roller that rotates around a horizontal axis by interference with the carrying screw mechanism of the rotating cage driving drum. Can be mentioned.
The length of the vertical guide rail is preferably the same as the length of the lowermost frame, the uppermost frame and the intermediate floor to which the vertical guide rail is to be attached. By stacking the frame, the top floor frame, and the intermediate floor frame, the vertical guide rails are connected vertically.
The cage guide frames stacked and fixed above and below are provided along the side of the building, and it is desirable that each cage guide frame is formed with a frame-side opening toward the building.
Further, the cage may include a cage-side opening on a surface facing the building and an opening / closing door that covers the cage-side opening so as to be freely opened and closed.
In this case, the open / close door is composed of two or more left and right movable doors that are suspended and moved by an upper guide rail, and each of the left and right movable doors includes one drive door and one or more drive doors. The drive door comprises a driven door, which is provided horizontally at the upper part of the cage-side opening, can rotate about a horizontal axis, and interferes with a door drive drum having a spiral carrying screw mechanism on the outer periphery. It is possible to employ a door including an interference member that moves the driven door by being interfered with the drive door and being pushed by the drive door.
Further, the cage driving drum may be a drum having a hollow inside and having a vent hole communicating with the hollow portion on the outer peripheral surface thereof, or a surface of the carrying screw mechanism and the engagement drum. A cage driving drum is proposed in which a ring-shaped unevenness contacting the engaging protrusion is formed on a contact surface with the mating protrusion.

According to the present invention, a frame for the lowermost floor (first floor) provided corresponding to at least the first floor of the building, a frame for the uppermost floor provided corresponding to the uppermost floor of the building, and if necessary A cage guide frame provided with a middle floor frame provided corresponding to the provided middle floor in a separable and connectable manner, wherein the lowermost frame is at the bottom, and the uppermost frame is provided. A cage guide frame that is fixed by stacking up and down by attaching the intermediate floor frame as necessary, a vertical guide rail provided vertically in the cage guide frame, A cage guided vertically by a vertical guide rail, a cage drive drum mounted on the cage, rotatable about a vertical axis, and provided with a spiral carrying screw mechanism on the outer periphery, and the cage drive A drum motor that rotates the drum; An engagement protrusion provided vertically apart from the cage guide frame at regular intervals within the vertical length of the cage drive drum so as to interfere with the carrying screw mechanism of the drive drum. An elevator is provided.
In this case, the cage guide frame is provided as needed, with the lowest floor frame provided corresponding to the first floor of the building, the uppermost frame provided corresponding to the uppermost floor of the building, and as required. A cage guide frame provided in an intermediate floor and corresponding to an intermediate floor so as to be separable and connectable. The lowermost frame is the lowest and the uppermost frame is the uppermost frame. In the meantime, the above-mentioned intermediate floor frame is mounted as needed by stacking it up and down, so that the frame on each floor can be installed regardless of the size of the house. The cage guide frame can be completed simply by stacking and stacking it, so it can be freely adapted to any size house, and can be freely adapted to any number of floors without cost. A possible elevator is provided.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings for understanding of the present invention. The following embodiment is an example embodying the present invention, and does not limit the technical scope of the present invention.
1 is a perspective view of the whole elevator according to an embodiment of the present invention, FIG. 2 is a side view of the whole elevator, FIG. 3 is a front view of the whole elevator, and FIG. 4 is an arrow AA in FIG. FIG. 5 is a view showing a connection relationship between a cage driving drum and a drum motor used in the elevator, FIG. 6 is a sectional view showing a single cage driving drum, and FIG. 7 is a guide rail used in the elevator. 8 is a cross-sectional view of the guide roller engaged with the door, FIG. 8 is a view showing the drive mechanism of the open / close door, and FIG. 9 is a detailed view of the door drive drum used in the open / close door drive mechanism.

First, the outline | summary of the elevator X which concerns on embodiment of this invention is demonstrated using FIG.
The elevator X shown in FIG. 1 is configured to be applied to a three-story building. However, the building applicable to the elevator X may be at least two floors, and the second floor is a basement one floor above the ground. It may be the first floor and the second floor, and the second floor above the ground.
It can also be applied to three or more floors as needed.
That is, the elevator X suitable for the three-story building shown in FIG. 1 has a first-floor frame (lowermost frame) 1-1 provided corresponding to the first floor of the building, and an uppermost building. A frame 1-3 for the top floor (ie, for the third floor) provided corresponding to the floor (in this case, the third floor portion) and an intermediate floor (ie, for the second floor) provided corresponding to the second floor as the intermediate floor )) The cage guide frame 1 that is detachable from the frame 1-2 is provided as an essential component. The cage guide frame 1 has the lowermost floor frame 1-1 at the bottom, the uppermost floor frame 1-3 at the uppermost position, and the intermediate floor frame 1-2 is mounted therebetween. It is fixed by stacking up and down and attached to the side of the building.
In the cage guide frame 1, four vertical guide rails 2, 2, 2, 2 (see FIGS. 3 and 4) are provided vertically. Is guided vertically.
The cage 4 is provided with a cage driving drum 6 that is rotatable about a vertical axis and that has a spiral carrying screw mechanism on the outer periphery. Details of the carrying screw mechanism will be described later.
The cage driving drum 6 is rotationally driven around the vertical axis by a drum motor 8 fixed to the cage 4.
On the other hand, the cage guide frame 1 is provided with engaging projections 10 and 10 that are fixedly separated from the cage guide frame 1 and spaced apart in the vertical direction at intervals equal to or shorter than the vertical length of the cage drive drum 6. , 10,... (See FIGS. 1, 5, 6), and the engagement protrusions 10, 10, 10,... Interfere with the carrying screw mechanism of the cage driving drum 6, thereby When the cage driving drum 6 is rotated by the drum motor 8, the cage 4 is driven up or down by the carrying action of the carrying screw mechanism.

Next, each of the above components will be specifically described with reference to the drawings.
First, the cage guide frame 1 will be described with reference to FIGS. 2 and 3 show a state in which the first-floor frame 1-1, the second-floor frame 1-2, and the third-floor frame 1-3 are stacked and fixed in this order. If the building to be built is two stories, or if it is three stories and only elevators up to the second floor are attached, the second-floor frame 1-2 is omitted.
Each frame has the same basic structure, but the roof 1-T with the pulley 12 attached to the top is attached to the third-floor frame 1-3, and the first-floor frame 1-1. Is different from others in that it is provided with a mounting portion (not shown) to the foundation.
Accordingly, each frame has a rectangular shape in which a frame member 12 (see FIG. 4) constituting each side of a rectangular solid and a guide 14 (see FIG. 3) that reinforces an intermediate portion in the vertical direction are joined by welding. It is a structure.
In this way, each frame has basically the same structure, so after each frame is assembled at the factory, it is transported to the construction site, stacked in contact with the building, and locked with bolts. Since it can be attached to the building with only simple work, assembly work becomes extremely easy.
Also, as long as you know the height of the first floor and the top floor of the building and the intermediate floor if necessary, the height of each frame is determined and can be designed immediately, so it can be easily applied to any construction. It is possible.
In the example shown in FIG. 2, there is a building on the side indicated by the arrow Y, and the user rides from the direction indicated by the arrow Y1, raises the cage 4 and descends in the direction indicated by the arrow Y2. Of course, Y1 and Y2 may be in directions different by 90 degrees. The direction of riding and the direction of getting off vary depending on the circumstances of the building.
Therefore, when the cage is stopped on the first floor, the user enters the building through the cage 4 and further operates the cage 4 up to the second and third floors, and the second or third floor. Get off at.

Next, the structure of the cage 4 and its vertical guide, support, and drive device will be described with reference to FIGS.
1 and 2 are front and side views, and FIG. 4 is a cross-sectional view taken along line AA (see FIG. 3).
As shown in the figure, the cage 4 is a rectangular frame made up of frame members that form rectangular sides, and the weight balance thereof is a balance weight W that moves up and down along the side surface of the cage guide frame 1. Kept by. That is, from the ceiling part of the cage 4, the weight is passed through a pulley 12-1 on the rooftop 1 -T provided further above the uppermost frame 1-3 and a pulley 12-2 on the side of the frame. A cable C extending to W is provided so that the weight of the cage 4 does not impose a heavy burden on the drive mechanism of the cage 4 described later due to the balance with the weight W.
Reference numeral 14 denotes a guide for guiding the balance weight W in the vertical direction.
As shown in FIG. 4, four vertical guide rails 2 having an L-shaped cross section in the vertical direction are fixed to the inside of the frame 1 -X at positions corresponding to the four corners of the cage 4. The lengths of these vertical guide rails 2 coincide with the vertical length of the frame 1-X.
Horizontal guide tubes 16 projecting diagonally outward from the four corners of the cage 4 are fixed to the upper or lower portion of the cage 4, and a slide tube 18 is slidably provided in the guide tube 16. It has been.
The sliding cylinder 18 is elastically urged outward by a spring 20 housed in the guide cylinder 16, and a guide wheel 22 attached to the tip of the sliding cylinder 18 so as to freely rotate is provided on the spring 20. By being pressed against the L-shaped portion of the vertical guide rail 2, the guide wheel 22 guides the vertical movement of the cage 4 in the vertical direction along the vertical guide rail 2.

Next, the drive mechanism of the cage 4 will be described.
FIG. 5 is a side view showing the cage drive drum 6 and the drum motor 8 as an example of a drive mechanism of the cage 4.
The cage drive drum 6 is a hollow cylindrical drum, and a spiral carrying screw mechanism 24 is formed on the outer periphery thereof. The carrying screw mechanism 24 is a kind of worm gear. The carrying screw mechanism 24 rotates about the vertical axis while engaging with the engaging protrusions 10, 10, 10,... Fixedly attached to the cage guide frame 1, so that the engaging protrusions 10, .. Are carried in the vertical direction, whereby the cage 4 moves in the vertical direction relative to the fixed cage guide frame 1.

The engaging protrusions 10, 10, 10,... Are fixedly attached to the cage guide frame 1 and spaced apart in the vertical direction at intervals equal to or shorter than the vertical length of the cage driving drum 6. As the cage drive drum 6 rotates and moves, the engaging projections 10, 10, 10,... That interfere with the cage drive drum 6 are sequentially switched, and the cage drive drum 6 and the cage 4 are As long as the engagement protrusions 10, 10, 10,... Are present, they can be raised or lowered.
The engagement protrusions 10, 10, 10,... Are preferably constituted by rollers such as bearings that rotate around a vertical axis in order to reduce friction with the carrying screw mechanism 24. In this embodiment, it is constituted by a bearing. Further, as shown in FIG. 5, a plurality of (for example, two) engaging protrusions 10 are provided as a single unit, and not only a single engaging protrusion 10 is provided, but also a plurality of engaging drums 6 are simultaneously engaged with a plurality of teeth of a plurality of cage driving drums 6. It is desirable from the standpoint of strength and smoothness of contact that they can be combined.

On the outer peripheral surface of the cage drive drum 6, a large number of through holes 25 are formed to communicate the outside with the hollow portion. As a result, when the cage driving drum 6 rotates, the air sandwiched between the engaging projection 10 and the outer peripheral surface of the cage driving drum 6 can escape from the through hole 25, and the air The generation of noise due to the compression is prevented.
Further, a cage drive as shown in FIG. 6 is provided on the surface of the carrying screw mechanism 24 and on the contact surface with the engaging protrusion 10 in order to reduce frictional resistance due to contact with the engaging protrusion 10. It is desirable to form concentric fine ring-shaped irregularities 26 around the rotation axis of the drum 6. This also prevents the generation of noise.

As described above, the cage 4 has an opening for getting on and off. As a normal usage, a person who enters from outside the room enters the house using the first floor portion of the elevator X as the entrance. That is, this elevator X itself has the function of an entrance. Therefore, the person who enters from the outside presses the switch of the elevator X to stop the elevator on the first floor and proceeds to the first floor of the building as it is. Thus, since the elevator X also serves as the entrance, it is desirable that the opening of the entrance and exit of the elevator X can be greatly opened.
Therefore, the door that opens and closes the opening of the elevator X needs to have a special structure.
8A and 8B are diagrams showing the opening / closing door driving mechanism as described above, where FIG. 8A is a front view of the door, FIG. 8B is a cross-sectional view taken along line BB in FIG. , Cc arrow sectional view.
In this example, a door provided with two doors on each of the left and right sides (a total of four doors) is shown.
From the outside to the building, the right door consists of two DR-O (outside) and DR-I (inside), and the left door consists of DL-O (outside) and DL-I (inside).
These doors are vertical shafts 36a suspended from wheels (bearings) 32a and 34b that travel along horizontal rails 32a and 32b that are confined to a rail box 30 provided horizontally at the upper end of the door. 36b, and can be translated only in the horizontal direction.
A drum box 40 for storing door drive drums 38 and 39 is provided on the lower side of the rail box. A horizontal drum shaft 44 rotatably supported by bearings 42a and 42b is accommodated in the drum box 40. The door drive drums 38 and 39 are arranged on the drum shaft 44 as shown in the figure. Installed at intervals.
A slider (not shown) that interferes with the door drive drums 38 and 39 (configured by a rotating roller), the right door DR-O (outside), DR-I (inside), and the left door are DL. -O (outer side) and DL-I (inner side) are connected by connecting levers 46a and 46b.
A motor 48 rotates the drum shaft 44 in the forward and reverse directions.
As shown in detail in FIG. 9, the door drive drums 38 and 39 are formed of spiral carrying screws.
Since the door drive mechanism is configured in this way, when the motor 48 rotates in the forward or reverse direction, the drum shaft 44 and the door drive drums 38 and 39 attached to the drum shaft 44 rotate in the forward or reverse direction. A slider (shown in the figure) that interferes with the spiral carrying screw of the drive drums 38 and 39 slides in the direction of the arrow Z1 (inward direction) or the arrow Z2 (outward direction), and the connecting levers 46a and 46b are attached to the slider. The inner doors DRI and DLI connected via the movement move in the direction of the arrow Z1 or Z2 to close or open the opening.

The perspective view of the whole elevator which concerns on one Embodiment of this invention. The side view of the whole elevator which concerns on one Embodiment of this invention. The front view of the whole elevator which concerns on one Embodiment of this invention. AA arrow sectional drawing in FIG. The figure which shows the connection relationship of the drive drum for cages used for the elevator which concerns on one Embodiment of this invention, and a drum motor. Sectional drawing which shows the drive drum single item for cages used for the elevator which concerns on one Embodiment of this invention. Sectional drawing of the guide roller engaged with the guide rail used for the elevator which concerns on one Embodiment of this invention. The figure which shows the drive mechanism of an opening-and-closing door. FIG. 3 is a detailed view of a door drive drum used in the opening / closing door drive mechanism.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Cage guide frame 1-1, 1-2, 1-3 ... Frame 2 ... Vertical guide rail 4 ... Cage 6 ... Cage drive drum 8 ... Drum motor 10 ... Engagement protrusion 16 ... Guide cylinder 18 ... Slide Moving cylinder 25 ... through hole

Claims (8)

Provided corresponding to at least the lowest floor frame provided corresponding to the first floor of the building, the uppermost frame provided corresponding to the uppermost floor of the building, and the intermediate floor provided as necessary. A cage guide frame having a frame for an intermediate floor, which is separable and connectable, with the frame for the lowermost floor at the bottom, the frame for the uppermost floor at the top, and for the intermediate floor in between A cage guide frame that is fixed by stacking up and down by attaching the frame as required,
A vertical guide rail provided vertically in the cage guide frame;
A cage guided vertically by the vertical guide rail;
A cage drive drum mounted on the cage and rotatable about a vertical axis and having a spiral carrying screw mechanism on the outer periphery;
A drum motor for rotationally driving the cage driving drum;
Engagement protrusions provided vertically apart from the cage guide frame at regular intervals within the vertical length of the cage drive drum to interfere with the carrying screw mechanism of the cage drive drum;
An elevator comprising   The elevator according to claim 1, wherein the engaging projection is configured by a roller that rotates around a horizontal axis by interference with the carrying screw mechanism of the rotating cage driving drum.   The vertical guide rail is the length of the lowermost frame, the uppermost frame and the intermediate floor to which the vertical guide rail is attached, and is the lowermost frame and uppermost frame. The elevator according to any one of claims 1 and 2, wherein the frame and the intermediate floor frame are stacked to be connected vertically.   The cage guide frame that is stacked and fixed above and below is provided along a side surface of the building, and a frame-side opening toward the building is formed for each cage guide frame. The elevator according to crab.   The elevator according to claim 4, wherein the cage includes a cage-side opening and an opening / closing door that covers the cage-side opening so as to be openable and closable on a surface facing the building.   The open / close door is composed of two or more movable doors each moved by being suspended by an upper guide rail, and the left and right movable doors are each composed of one drive door and one or more driven doors. The drive door is horizontally provided at the upper part of the cage-side opening, and has an engaging portion that can rotate about a horizontal axis and interferes with a door drive drum having a spiral carrying screw mechanism on the outer periphery. The elevator according to claim 5, further comprising an interference member that moves the driven door when the driven door interferes with the drive door and is pushed by the drive door.   The elevator according to any one of claims 1 to 6, wherein the cage driving drum is a drum having a hollow inside, and a vent hole communicating with the hollow portion is formed on an outer peripheral surface thereof.   The elevator according to any one of claims 1 to 7, wherein a ring-shaped unevenness that comes into contact with the engagement protrusion is formed on a surface of the carrying screw mechanism that is in contact with the engagement protrusion.

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