JPH1179570A - Cargo elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To smoothly and accurately perform correction of the inclination of a cargo chamber without generating the hunting phenomenon and without generating excessive load on a frame of the cargo chamber, rising and lowering frames and meshing parts to racks even if one-side rising is generated on the load chamber to be raised and lowered by motors respectively provided on right and left parts. SOLUTION: Guide rails 3 and racks 4 are provided on the right and left parts of a hoistway, rising and lowering frames 7, 7 are supported on them, and motors M and reduction gears G for pinions to be meshed with racks are respectively mounted. Both ends of the frame 12 of the cargo chamber 1 are connected to the rising and lowering frames through connecting shafts 13, 13, an inclination detecting member is provided on the frame, limit switches and sliders which collide with them by the movement are attached to the rising and lowering frame adjacent to it, the sliders are interlocked with the inclination detecting member, and the motor whose wising or lowering operation is advanced, out of motors mounted on the rising and lowering frames is turned off by the detecting operation of the inclination detecting member.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in an elevator for luggage which vertically moves a box-shaped luggage room for storing luggage from the first floor to the second and third floors of a building.

[0002]

2. Description of the Related Art Conventionally, an elevator A for luggage has a tower-shaped machine frame 2 serving as a hoistway for a luggage compartment 1 formed in a box shape, as shown in FIGS. A guide rail 3 which is constructed at a predetermined place in the building and which serves as a guide for the luggage room 1 to be lifted and lowered on the inner side of the left and right sides thereof.
3) A pair of right and left 3 is symmetrically erected, and racks 4 and 4 are respectively assembled to them along a vertical direction.

In the luggage compartment 1, rollers 10, which are joined to the front and rear rail surfaces of the guide rails 3, are supported on the left and right side surfaces of the luggage compartment 1 via brackets 11.
The luggage room 1 is guided by the guide rails 3 by the rollers 10.
It is supported to go up and down along 3.

On the lower surface side of the floor 1a of the luggage compartment 1, a motor storage room W is installed so as to be continuous with the luggage compartment 1, and a motor M and a speed reducer G are incorporated therein. The shaft ends of the conduction shafts S, which communicate with the shafts, protrude from the left and right sides of the luggage compartment 1, and the pinion gears 5, 5 are respectively assembled thereto, and they are attached to the aforementioned guide rails 3, 3. Each of the racks 4 is assembled with the assembled racks 4.

[0005] A control panel 6 for controlling the operation of the motor M is mounted at an appropriate position on the outer surface of the machine frame 2, and the motor M is operated in the reverse direction by operating the control panel. The luggage compartment 1 is raised and lowered.

[0006]

The above-described conventional elevator A for luggage has a motor M for driving up and down and a speed reducer G mounted on the lower surface side of the luggage compartment 1 so that the luggage compartment 1 is provided.
Is lowered to a level where the floor surface thereof is flush with the floor on the first floor of the building.
There is a restriction on the installation in which the pit P into which the vehicle enters enters must be constructed at the bottom of the hoistway of the luggage compartment 1.

Conventionally, there is an elevator for luggage in which the motor M and the speed reducer G are mounted and mounted on the upper surface of the ceiling of the luggage compartment 1. In addition, a space for accommodating the mechanical parts such as the motor M and the speed reducer G must be ensured, which has the same problem as that of the above-described embodiment.

[0008] In addition, depending on the user who uses the elevator A for luggage, there is a demand for increasing the width of the floor left and right. In this case, the transmission shaft S protruding left and right from the speed reducer G is required. -It is necessary to replace or add S to a long one, and this work has a troublesome problem.

From these facts, separate motors are respectively attached to the left and right side surfaces of the luggage compartment 1, and the left and right pinions are driven by the respective separate motors.
Attempts have been made to allow the design and construction of the left and right widths to be performed without restrictions, but this means that the motors used will have individual differences and will operate at a unique rotational speed. As a result, the left and right sides of the luggage compartment 1 move up and down at different speeds, and the floor surface is tilted, which causes a problem in that the frame of the luggage compartment, the elevating frame, and the pinion that meshes with the rack may be overwhelmed. come.

If a level detector is provided in the luggage compartment to control the operation of the left and right motors in order to correct the one-sided lifting, a hunting phenomenon that repeats on and off may occur. As a result, there is a problem that smooth correction cannot be performed.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems occurring in the conventional means. The present invention has been made to solve the above problem. Even if one side of the luggage rises, the luggage frame, the lifting frame, and the meshing part with the rack will not be forced, and the inclination of the luggage compartment will be corrected smoothly and without any hunting phenomenon. The purpose is to provide a new means to ensure this.

[0012]

According to the present invention, a guide rail 3 and a rack 4 are provided on both left and right sides of a hoistway for raising and lowering the luggage compartment 1 as means for achieving the above-mentioned object. The motors M and the reduction gears G for driving the pinion 5 meshing with the rack 4 are separately mounted on the vertically movable frames 7, 7, respectively. The left and right ends of the frame 12 of the luggage compartment 1 are connected to the frames 7 and 7 via connecting shafts 13 so as to be bent and rotatable. A member 90 is provided, and the lifting frame 7 on the side adjacent to the member 90 is provided.
In addition, a pair of limit switches 95 and 95 and a slider 93 that alternately abuts them by movement are assembled, and the slider 93 is connected to the inclination detecting member 90 via a connection mechanism 94. In addition, the detection operation of the inclination detecting member 90 controls the motor M, which is mounted on the left and right lifting frames 7.7, to turn off the motor M on the side where the lifting operation is progressing. Is to raise an elevator for luggage.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the elevator for luggage according to the present invention, a guide rail and a rack are provided vertically on both left and right sides of a hoistway for lifting and lowering a luggage compartment, and the left and right sides of the luggage compartment are provided. Are provided with lifting frames, respectively, and rollers are respectively supported on the lifting frames, and the pinions are fitted to the guide rails, respectively, and are respectively supported on the racks. By driving the pinions, the left and right lifting frames are respectively guided. The lifting and lowering frame is guided by the frame, and the left and right lifting frames are connected and supported via a connection shaft so that the frame of the luggage compartment can be freely rotated up and down. By moving the frame up and down, the luggage compartment is guided by the guide rail so as to freely move up and down the hoistway.

[0014] Driving of a pinion that is supported by lifting frames provided on both left and right sides of the luggage compartment is performed by providing motors and reduction gears on the left and right lifting frames, respectively, and operating the motors via the reduction gears. The operation is performed by individually driving the motors, and the operation of the motors provided separately for each of them is controlled to be turned on / off by the operation of an inclination detection device provided to detect the left and right inclination of the luggage compartment.

An inclination detecting device for controlling the operation of a lifting drive motor mounted on and supported by the left and right lifting frames connected to the left and right sides of the luggage compartment via connecting shafts, respectively, is provided on the frame of the luggage compartment. When the floor surface is correctly aligned with a horizontal surface, it will be in a vertical position, serving as a ruler for the luggage compartment, and detecting the inclination of the luggage compartment when the luggage is tilted left and right. Providing a detection member,
The left and right lifting frames are provided with a pair of limit switches arranged in parallel at a predetermined interval on one of the frames, and freely move in the direction in which the switches are arranged. By providing an abutment member for alternately contacting the switches and turning on the switches alternately, the abutment member is connected to a tilt detection member provided on the frame of the above-mentioned luggage compartment via a linkage mechanism. When the luggage compartment is tilted left and right, when the tilt angle reaches a predetermined angle, one of the limit switches is operated to output a detection signal, and the detection signal is used to operate the left and right vertical drive motors. Is controlled.

The control of the motors separately provided on the left and right lifting frames by the detection operation of the tilt detecting device is such that the tilt detecting device detects the horizontal tilt of the luggage compartment in the process of raising the luggage compartment. In response to the detection signal, the motor on the side where the luggage compartment is moving up is turned off, and the luggage compartment is returned to a horizontal position, and is turned on when there is no detection signal.

In the process of lowering the luggage compartment,
According to the detection signal when the inclination detecting device detects the inclination of the luggage compartment in the left-right direction, the motor on the side where the luggage compartment is descending is turned off, so that the luggage compartment is turned on by returning to a horizontal position. Control.

[0018]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a first embodiment of the present invention;

FIG. 3 is a front view of a luggage elevator A for carrying out the present invention. In FIG. 3, reference numeral 1 denotes a luggage compartment assembled in a box shape, and 2 denotes a luggage compartment. That can be constructed with steel frames to form a hoistway
Are guide rails which stand upright at both left and right sides of the hoistway, 4 and 4 are racks provided on the guide rails, 7 and 7 are left and right lifting frames guided up and down by the guide rails 3 and 3, and 12 are Connecting shaft 13 to lifting frame 7.7
L, a frame of the luggage compartment 1 connected via 13, L denotes an inclination detection device for detecting the left and right inclination of the luggage compartment 1.

As shown in FIGS. 5 and 6, the elevating frame 7 has a main frame 70 formed in a rectangular enclosure shape corresponding to the side shape of the luggage compartment 1 in a side view, and an outer surface side thereof. The elevator rails 71 are arranged so as to sandwich the guide rail 3 from the front and rear, and are provided in a pair at the front and rear. Opposite inner surfaces of the elevator frames 71 are provided with guide rails as shown in FIG. Rollers 10 contacting the rail surface of the guide rail 3 so as to sandwich it from the front and rear, and a pinion 5 that meshes with a rack 4 attached to the guide rail 3 is supported pivotally.

A motor M for driving the pinion 5 and a reducer G for reducing the output shaft of the motor M and transmitting the output shaft to the drive shaft of the pinion 5 are provided on one outer surface of the pair of elevator frames 71. It is mounted.

Reference numeral 6 denotes a control panel for mounting the motors M, M provided separately on the left and right elevating frames 7, 7 at positions corresponding to the respective floors on the front side of the machine frame 2. The left and right elevating frames 7.7 are driven by driving the pinions 5.5 in the forward and reverse directions by operating the switches.
Are individually driven up and down to move the luggage compartment 1 up and down.

The frame 12 of the luggage compartment 1 is provided with the left and right ends at the bottom thereof and the main frame 70 of the left and right elevating frames 7.
The lower shaft 70 is connected to the lower end thereof by the connecting shafts 13 so as to be freely turned up and down. When there is a difference in the lifting operation of 7,
The lifting frame 7.7 holds the vertical position, and only the luggage compartment 1 is inclined left and right. A link 72 is provided at the lower end of the main frame 70 so as to be rotatable left and right via the connecting shaft 14 so that the tilting and rotation of the luggage compartment 1 with respect to the lifting frame 7 is smoothly performed. Out of the left and right ends of the bottom of the link 72, the end opposite to the side on which the tilt detection member 90 described later is provided is connected to the lower end of the link 72 by the connection shaft 13. The link 72 may be provided at the lower end of the main body 70 of each of the left and right elevating frames 7.

Numeral 90 denotes an inclination detecting member of the inclination detecting device L for detecting the left and right inclination of the luggage compartment 1, and the frame 12 of the luggage compartment 1
When the floor surface of the luggage compartment 1 is correctly aligned with a horizontal surface at one end of the left and right end portions of the bottom portion of the bottom, the load is in a posture perpendicular to the horizontal surface, When the luggage compartment 1 is tilted left and right, it is tilted right and left together with the luggage compartment 1 to detect the left and right inclination of the luggage compartment 1. The operation is performed.

Reference numeral 91 denotes limit switches 95.9 for converting the detection operation by the inclination detecting member 90 into a detection signal.
5 is provided on the lifting frame 7 on the side adjacent to the inclination detecting member 90 so as to protrude outward along the left-right direction. , The limit switches 95
The pair is arranged and mounted on the mounting frame 91 so as to be arranged in a pair on the left and right. In addition, this mounting machine frame 91 has a lower portion of the pair of limit switches 95 and 95,
A slider 93 which can be moved in a direction parallel to the switches 95 by a guide member 92 is assembled. A pair of limit switches arranged in parallel by movement are provided at both ends of the slider 93 in the moving direction. 95, 95 operating pieces 96, 96 against these switches 95, 95
Abutment members 97, 97 for actuating are formed. The slider 93 is connected to the above-described inclination detecting member 90 via a linkage mechanism 94, and the inclination of the inclination detecting member 90 due to the inclination of the luggage compartment 1 causes the slider 93 to slide left and right. The lifting frame 7
7 rises and falls faster than the other due to the individual difference of the motors MM mounted separately on them, and the luggage compartment 1 inclines left and right with respect to the elevating frame 7.7, the inclination reaches a predetermined angle. By the way, the inclination detecting device L outputs a detection signal, and performs control to turn off the motor M on the side where the elevation operation is progressing.

The control of the motors MM by the inclination detecting device L is such that, when the luggage compartment 1 is lifted, the inclination detecting device L is tilted leftward or rightward. When the inclination of the luggage compartment 1 is detected, the operation of the motor M on the side where the ascending operation is proceeding is turned off by the detection signal, whereby the luggage compartment 1 returns to the horizontal state and the detection signal of the inclination detection device L is transmitted. Is eliminated, the stopped motor M is controlled to operate again, and in the case of the stroke of lowering the luggage compartment 1, when the inclination detecting device L detects the inclination of the luggage compartment 1, the reverse operation is performed. Then, the operation of the motor M on the descending side is stopped, so that the signal for detecting the inclination of the luggage compartment 1 returning to the horizontal level disappears, so that the stopped motor M is operated again. This is done by controlling.

[0027]

As described above, the luggage elevator A according to the present invention comprises the left and right lifting frames 7, 7 mounted on the left and right sides of the luggage compartment 1 with the lifting motors M, M, respectively. Since it is mounted, there is no driving mechanical part on the upper surface side and the lower surface side of the luggage compartment 1, so no pit and upper space are required on the hoistway, and the left and right widths of the luggage compartment 1 are reduced. It is possible to freely design without being restricted by the driving means.

If the left and right elevating frames 7.7 come up or down due to individual differences between the left and right motors MM, the elevating frames 7.
By the operation of the connecting shafts 13 between the frame 7 and the frame 12 of the luggage compartment 1, only the luggage compartment 1 is inclined left and right, and the inclination of the luggage compartment 1 is changed to the inclination provided on the frame 12 of the luggage compartment 1. The detection is performed based on the inclination of the detection member 90, and the slider 93 provided on the lifting frame 7 is moved by the operation thereof.
However, by abutting against one of the limit switches 95 provided in the pair and operating it, the motor M attached to the lifting frame 7 on the side where the lifting operation is advanced is turned off. Lifting and lowering only the side that was late, luggage room 1
Is controlled to be turned on again by moving the slider 93 away from the limit switches 95, 95, so that it is possible to correct the phenomenon of the lifting of the luggage compartment 1 without causing a hunting phenomenon. Can do it.

When the luggage compartment 1 is lifted up, the luggage compartment 1
Is bent and rotated with respect to the lifting frame 7.7 by the connecting shaft 13, so that the cargo room 1 and the lifting frame 7.7
The luggage compartment 1 can be moved up and down by the left and right motors MM without causing excessive force.

Further, the connection between the lifting frame 7.7 and the cargo room 1 is made by a tilt detecting member 90 serving as a ruler rod of the tilt detecting device L.
When the link 72 is provided on the side opposite to the side provided with, the operation of tilting the luggage compartment 1 with respect to the elevating frame 7.7 and the operation of detecting the inclination can be performed more smoothly and accurately.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of an entire conventional luggage elevator.

FIG. 2 is a bottom view of a main part of the luggage elevator according to the first embodiment;

FIG. 3 is a front view of a luggage elevator according to the present invention;

FIG. 4 is a rear view of the elevator.

FIG. 5 is a side view of an essential part of the luggage elevator.

FIG. 6 is a cross-sectional plan view of an essential part of the luggage elevator.

FIG. 7 is an overall schematic diagram of the inclination detecting device of the luggage elevator.

FIG. 8 is an enlarged front view of the inclination detecting device of the luggage elevator.

[Explanation of symbols]

A: elevator for luggage, G: reduction gear, L: inclination detector, M: motor, P: pit, S: conduction shaft, W: motor storage room, 1: luggage room, 1a: floor, 10: roller,
11: bracket, 12: frame of luggage compartment, 13/14
... connecting shaft, 2 ... machine frame, 3 ... guide rail, 4 ... rack,
5 pinion, 6 control panel, 7 lifting frame, 70
Main frame, 71: elevator frame, 72: link, 90: inclination detecting member, 91: mounting frame, 92: guide member, 93: slider, 94: linkage mechanism, 95: limit switch, 96
... Actuating piece, 97.

Claims (2)

[Claims] 1. A guide rail 3 and a rack 4 are respectively provided on the left and right sides of a hoistway for raising and lowering the luggage compartment 1 in the up and down direction. A pinion 5 meshing with the rack 4
The motor M and the speed reducer G for driving the frame are separately mounted, and the left and right ends of the frame 12 of the luggage compartment 1 are connected to the lifting frames 7.7 via connecting shafts 13 so as to be freely rotatable. Then, the luggage compartment 1 is mounted on the frame 12 of the luggage compartment 1.
And a tilt detecting member 90 which is tilted together. A pair of limit switches 95 and a pair of limit switches 95 and a slider 93 which alternately abuts them by movement are assembled to the lifting frame 7 on the side adjacent thereto. The slider 93 is connected to the tilt detecting member 90 via a linking mechanism 94, and the detection operation of the tilt detecting member 90 causes the left and right lifting frames 7, 7 to move.
An elevator for luggage, characterized in that the motor M on the side of the motor MM mounted on the side where the raising / lowering operation is proceeding is controlled to be turned off. 2. A link pivoting left and right by a connecting shaft 14 at the lower end of the lifting frame 7 opposite to the inclination detecting member 90 provided on the frame 12 of the luggage compartment 1 of the left and right lifting frames 7. 2. The luggage elevator according to claim 1, wherein a lower end of the link is connected to the frame of the luggage compartment via a connecting shaft.