JPH06156940A - Elevator - Google Patents

Abstract

PURPOSE:To provide a noiseless elevator for low floors having a small drive part by mechanically elevating a car by means of a hydraulic lifter or a pneumatic lifter and a pantograph type expandable arm. CONSTITUTION:In an elevator 1, when water or air is fed to a hydraulic lifter 9 or a pneumatic lifter with the aid of a pump, the hydraulic lifter 9 is expanded upward and a flat mount 10 attached to the upper surface plate thereof is raised. Resultant from the rise thereof, a roller 8 is rolled in a manner to approach the inside. The links 50-59 of a pantograph type expandable arm 5 are raised. The whole of the expandable arm 5 is expanded to raise a gauge 3 attached to the topmost links 58 and 59 thereof. Meanwhile, when a pressure is decreased, the bellows of the hydraulic lifter 9 or the pneumatic lifter is compressed under the weight of a flat mount 10, water or air is delivered in an uniform ratio, and the hydraulic lifter 9 is contracted to lower the flat mount 10. This constitution causes prevention of a drive mechanism from the generation of noise and reduction of the size of an internal mechanism owing to constitution of the expandable arm.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator utilizing pneumatic pressure or hydraulic pressure.

[0002]

2. Description of the Related Art Conventionally, as a drive device for an elevator, a rope type or a hydraulic jack type is known.

[0003]

However, there is a problem in that the elevator of the drive device as described above is used in a general residence, which is a low floor of the first to third floors, and the drive device takes up too much space. Incorporating a motor or hydraulic system also has the problem of noise and mechanical odor. 1-3
There was a demand for the development of a safe elevator in a relatively narrow space on the lower floors.

[0004]

According to the present invention, a gauge is raised and lowered by a pneumatic lifter or a hydraulic lifter, but a bellows type hydraulic lifter or a bellows type pneumatic lifter (hydraulic jack / pneumatic jack) is used instead of a cylinder. It is proposed that the hydraulic lifter or pneumatic lifter and a pantograph type telescopic arm be used to mechanically move the gauge up and down.

According to the present invention, the gauge and the base are vertically connected by a pair of left and right pantograph type telescopic arms, and the equal height nodes of the left and right lower links constituting the telescopic arms are respectively connected by axes. A roller is provided on each shaft, and the roller is rotatably supported by a vertically moving flat platform mounted on a hydraulic lifter or a pneumatic lifter, and the roller is rolled by vertically moving the hydraulic lifter or the pneumatic lifter platform. , The distance between the parallel shafts is widened or narrowed through the rolling,
It is an elevator that raises and lowers the gauge by expanding and contracting the expandable arm. The upper end of the telescopic arm is connected to the gauge, but one end is pivotally supported and the other end is provided with a roller. Dehydration water is used as the water for the hydraulic lifter to prevent rusting of the elevator itself and indoor equipment, and antifreeze (glycerin) is added in cold regions.

In the elevator having this structure, when water or air is sent to the hydraulic lifter or the pneumatic lifter by a pump, the hydraulic lifter or the pneumatic lifter expands, and the flat base attached to the upper surface plate rises. This rise is then transmitted to the rollers, and the rollers receiving the upward force roll toward the inside. Each link of the pantograph type telescopic arm rises, the entire telescopic arm extends, and the gauge attached to the tip link rises. If the pressure in that state is maintained, the gauge will continue to stop in the raised position. When the pressure is lowered, the bellows of the hydraulic lifter or the pneumatic lifter are compressed and contracted due to the weight of the flatbed etc., and the flatbed is lowered. At this time, the rollers movably mounted on this flat base roll, and the rollers move away from each other.
Pull down each link so that it collapses, fold it, and lower the gauge. By such an operation, the gauge can be moved up and down.

The elevator according to the present invention was developed on the assumption that it will be used for elevating and lowering a relatively low floor such as a general house, and is intended to carry a small number of people for the elderly and the physically handicapped and for a few people. It has the minimum required device configuration.

Therefore, although a device such as a door opening mechanism is provided, a heavy balancer and a shock absorber are not provided. This is because a hydraulic lifter or a pneumatic lifter can sufficiently substitute for the buffer function. Therefore, it is compact and lightweight as a whole. Still another mechanism for ensuring safety, a rail mechanism for guiding the ascending / descending track of the gauge, and a stopper, for example, are added to the elevator based on known techniques.

The elevator according to the present invention is a pantograph type telescopic arm utilizing a quadrilateral mechanism for moving up and down a flat base of a hydraulic lifter or a pneumatic lifter (hydraulic jack / pneumatic jack) through rolling of rollers. It transmits so as to change the interval of the shafts that connect the nodes of equal height of the lower link, and tilts the link by the rolling of the roller, and transmits it to the next link to extend and retract the telescopic arm as a whole. This is the operating principle of raising and lowering the gauge.

In the pantograph type telescopic arm of the present invention, the uppermost link is pivotally supported on the bottom of the gauge, and the lowest link is pivotally supported on the base. The upper end link of the telescopic arm is connected to the gauge, but the front side is pivotally supported and the roller is provided on the rear side. Although the pivotal support part of the lowest link rotates,
It is a mounting method that does not slide left and right. In addition, the expandable arm of the pantograph system is pivoted at the middle intersection (where the link intersects with Χ), and it is an expandable arm that utilizes the parallelogram mechanism. This special pantograph system is effective for foldability and safety of fixing the gauge, and is also useful for low noise and weight reduction.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the elevator according to the present invention will be described with reference to the drawings. FIG. 1 is a side view showing the principle of the elevator 1, and FIG. 2 is a front view. In the embodiment, the links 50, 51, 52, 53, 54 constituting the telescopic arm 5 by vertically connecting the gauge 3 for moving up and down the elevator frame 2 and the base 4 with the pair of left and right telescopic arms 5 of the pantograph system.・ 55 ・ 56 ・ 57
The lower ends of the left and right lowest links 50 and 51 of 58 and 59 are pivotally supported by the machine base 4, and the tips of the highest links 58 and 59 are pivotally supported by the bottom of the gauge 3. The uppermost links 58 and 59 pivotally supported on the bottom of the gauge 3 are mounted so that the front link 59 is pivotally supported and the rear link 58 is provided with a roller 80 to move back and forth. In addition, the pivotal support portion of the lowest link 50/51 rotates, but does not slide left and right. The expandable arm 5 of the pantograph system shown in the embodiment employs a parallelogram linkage mechanism in which the middle portion is pivotally supported and the middle portion is a pivotal support. The expandable arm 5 connects the joints 6 of the left and right lowest links 50 and 51 with shafts 7, and rollers 8 are provided on the shafts 7. The roller 8 is rotatably supported by a flat base 10 mounted on a hydraulic lifter 9 and moving up and down. The roller 8 is rolled by the up-and-down movement of the flat base 10 of the hydraulic lifter 9, and the distance between the parallel shafts 7 is changed by widening or narrowing the roller 8 through the rolling, and the gauge 3 is expanded and contracted by the telescopic arm 5. It is a mechanism for raising and lowering. Since the roller 8 reciprocates on the flat base 10 by a predetermined width, although not shown, the flat base 10 is provided with a groove or a guide for accommodating the roller 8 so that the roller 8 moves in a fixed path, or the roller 8 Measures such as attaching a protective cover to prevent foreign matter from entering the track can be appropriately adopted.

The rising height of the gauge 3 is determined by appropriately designing the number and length of combinations of the links 5, such as raising the gauge 3 by 3 m by raising the flat base 10 of the hydraulic lifter 9 by 20 Cm. .

The hydraulic lifter 9 is equipped with a circulating water tank, a pump and a controller, and expands and contracts by the operation of the pump. The pump operates with 100V household power and uses circulating water. Depending on the case, it may be possible to expand and contract the hydraulic lifter 9 by combining water and a pump. The hydraulic lifter 9 is assembled by fitting an intermediate ring into a concave portion of a bellows-shaped synthetic resin bellows and fitting upper and lower face plates. The main material of the bellows type hydraulic lifter 9 or the pneumatic lifter is made of a synthetic resin material having high durability and fire resistance.

Next, the operation of the elevator according to the present invention will be described based on embodiments. The elevator 1 with this configuration
When water or air is sent to the hydraulic lifter 9 by a pump, the hydraulic lifter 9 stretches, and the flat base 1 attached to the top plate
0 rises. Then, the roller 8 that has received this lift,
Roll to move inward. Pantograph type telescopic arm 5
Each link 50 to 59 rises, the entire telescopic arm 5 extends, and the gauge 3 attached to the topmost link 58, 59 at its tip is raised. That is, the gauge 3 is raised by increasing the rising width of the flat base 10 several times. Gauge 3 and base 4 are telescopic arms 5
Since the gauges 3 are connected with each other, the rise of the gauge 3 is restricted by the maximum extension of the telescopic arm 5. If the pressure in that state is maintained, the gauge 3 continues to stop at the predetermined position.

On the other hand, if the pressure is lowered, the hydraulic lifter 9 or the bellows of the pneumatic lifter is compressed by the weight of the flat stand 10 or the like, and water or air is sent out at an equal rate (including forcibly discharging by a pump). The hydraulic lifter 9 is contracted to lower the flat base 10. At this time, the roller 8 movably mounted on the flat base 10 rolls and the roller 8 facing
Move away from each other, and each link 50 to 59 is tilted and folded to lower the gauge 3. By this operation, the gauge is moved up and down. This is because the roller 80 provided on the link 58 connected to the bottom of the gauge 3 is more refracted to effectively use the space. Incidentally, it is also possible to provide a roller at the tip of the links 50 and 51 connected to the base 4 so as to open and close.

In operation of the elevator, it is possible to freely move the gauge 3 up and down by driving the pump with a switch to pressurize and forcibly reducing the pressure with the switch or discharging water to reduce the pressure.

The elevator according to the present invention has the structure and operation described above, and has the following unique effects. It is inexpensive to manufacture and economical. The installation work is simple, the structure is simple, and the running cost is economical. The pump is fully driven by a 100V power supply and is suitable for home use. Compact and space saving. The drive part is a hydraulic lifter / pneumatic lifter, and there is no noise. Since the hydraulic lifter is located directly under the gauge, it has a buffer function in case of emergency. Since the gauge is moved up and down by multiplying the lifting width of the flat base with the telescopic arm, the lifting mechanism could be downsized. As described above, the elevator according to the present invention uses a small hydraulic lifter or a pneumatic lifter, and the raising / lowering width of the elevator is raised / lowered several times by the telescopic arm that is the link mechanism of the pantograph system. . In particular, by using a hydraulic lifter, the fire resistance inside the elevator system is secured, the drive mechanism is made noiseless, and the expandable arm makes the internal mechanism smaller, making it an excellent elevator for low-rise floors such as general houses. There is.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of an elevator according to the present invention, with a gauge in a raised position.

FIG. 2 is a front view showing an embodiment in which an elevator frame of an elevator according to the present invention is omitted.

FIG. 3 also shows an embodiment of the elevator according to the present invention, in which the gauge of the embodiment of FIG. 1 is in the lowered position,
Side view with telescopic arms folded

[Explanation of symbols]

 1 Elevator 2 Elevator Frame 3 Gauge 4 Base 5 Telescopic Arm 6 Section 7 Axis 8 Roller 9 Water Lifter 10 Flat 50-59 Link 80 Roller

Claims (1)

[Claims] 1. A gauge and a base are vertically connected by a pair of left and right expandable arms of a pantograph system, and the equal height nodes of the left and right lower links constituting the expandable arm are connected by respective shafts, and the respective shafts are connected. An elevator characterized in that a roller is provided on the roller, and the roller is rotatably supported by a vertically moving flat platform mounted on a hydraulic lifter or a pneumatic lifter.