JP2004008440A - Horizontality keeping device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a horizontality keeping device which is very simple in structure and small in installing space, and which always keeps an object to be installed horizontally without being affected by the inclination and movement of an installation base. <P>SOLUTION: The horizontality keeping device 1 has two pairs of an arc-shaped rail 3 curved downward so as to lower its center and a rocking slider 5 travelling along the arc-shaped rail 3 disposed vertically so as to be in directions orthogonal to each other. Furthermore, the horizontality keeping device 1 is provided with: a fixing frame 7 provided on the side of a distal end for installation and fixing; an operation part rocking slider 5B provided on the side of an operation part for keeping horizontality; and a base end side rocking slider 5A provided between the fixing frame 7 and the operation part rocking slider 5B. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a horizontal attitude setting device that always sets an attitude of an installation object so as to maintain a horizontal attitude without being affected by the inclination of the installation base, and particularly to a horizontal attitude setting device using a centripetal force based on gravity. The present invention relates to a horizontal maintenance device configured to maintain a horizontal posture.
[0002]
[Prior art]
For example, when riding on a car or a train and going down a long downhill for a long period of time, the trachea may be clogged because the airway is slightly bent. On board a voyage, nothing is as painful as seasickness during stormy storms.
In addition, the inclination, inundation, and sinking of a carrier caused by a tank truck or trailer rolling over due to imbalance or a collapse of a cargo have become a serious social problem in recent years.
These are all caused by the fact that the frame or floor of an automobile, train or ship serving as an installation base is integrally fixed to a seat, a bed or a pallet for luggage which is an installation object.
[0003]
That is, if the installation base is tilted, the object to be installed is similarly tilted, and if the installation base vibrates violently, the object to be mounted vibrates similarly violently.
In addition, gas cylinders such as LPG filled with liquefied gas, vinyl chloride poly tanks containing kerosene etc. for storage, drums and tanks filled with petroleum and flammable chemicals, and water tanks containing tropical fish etc. If the device falls down due to an earthquake or the like, it may cause liquid leakage, damage to the container, or fire.
Further, precision instruments such as various instruments and precision balances are required to maintain a horizontal posture so that reliable numerical values can be always obtained.
In addition, those that store a large amount of liquid and use this as a shaking balancer for earthquake countermeasures have recently been adopted for high-rise buildings such as high-rise buildings. However, installing such a swing balancer requires an enormous installation space, and most of the floors are divided by the swing balancer, so that efficient use of the installation space cannot be achieved.
[0004]
[Problems to be solved by the invention]
The present invention, in view of the existence of such conventional technology and the problems of the conventional technology, requires only an extremely simple structure and requires a small installation space, and is not affected by the inclination and movement of the installation base. An object of the present invention is to provide a horizontal maintenance device that can always maintain an installation object horizontally.
[0005]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the invention according to claim 1 has two sets of an arcuate rail curved downward so as to have a lower center and a swing slider running along the arcuate rail. It is characterized by being arranged vertically.
[0006]
According to a second aspect of the present invention, in the horizontal maintenance device according to the first aspect, the arc-shaped rail is a square rod-shaped member having a sliding surface on an upper surface and a lower surface, and is disposed so as to vertically sandwich the arc-shaped rail. The swing slider is configured to swing by a plurality of rolling rollers.
[0007]
According to a third aspect of the present invention, in the level maintaining device according to the first or second aspect, the level maintaining device is provided on a fixed frame provided on a base end side for mounting and fixing, and on an operation portion side for maintaining level. It is characterized in that it comprises an operating part side swing slider, and a base end side swing slider provided between the fixed frame and the operating part side swing slider.
[0008]
According to a fourth aspect of the present invention, in the horizontal maintenance device according to the third aspect, the fixed frame has two side plates arranged at opposing positions, and a plurality of connecting rods connecting the two side plates, It is characterized by comprising two base end side arc-shaped rails fixed to the two side plates.
[0009]
According to a fifth aspect of the present invention, in the horizontal maintenance device according to the third or fourth aspect, the operating portion side swing slider is provided with two side plates arranged at opposing positions, and a plurality of side plates connecting the two side plates. It is characterized by comprising a plurality of connecting rods and a plurality of rolling rollers provided in an idle state with respect to the two side plates.
[0010]
According to a sixth aspect of the present invention, in the horizontal maintenance device according to any one of the third to fifth aspects, the base-end-side oscillating slider includes two side plates arranged at opposing positions and the two side plates. Similar to a base-side swing frame including a plurality of connecting rods to be connected, and a base-end-side swing frame that is arranged so as to be orthogonal to the base-side swing frame and connected integrally. Operating portion side swing frame, two operating portion side arc-shaped rails fixed to two side plates of the operating portion side swing frame, and two side plates of the base end side swing frame. And a plurality of rolling rollers provided in an idle state.
[0011]
According to a seventh aspect of the present invention, in the horizontal maintenance device according to any one of the first to sixth aspects, the horizontal maintenance device is a frame serving as an installation base for vehicles such as automobiles, ships, airplanes, and trains; It is characterized in that it is provided between an object to be installed, such as a seat and a bed, which is installed in the vehicle.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the horizontal maintenance device 1 of the present invention will be specifically described by taking the illustrated embodiment as an example.
The leveling device 1 uses a vehicle body frame F of a passenger car as shown in FIG. 1 as an installation base, a seat S installed on the vehicle body frame F as an installation target, and a space between the vehicle body frame F and the seat S. Used to intervene.
In this specification, the side on which the vehicle body frame F is provided will be described as a base end side, and the side on which the seat S is provided will be described as an action section side.
[0013]
The horizontal maintenance device 1 is constructed by mechanically arranging two sets of an arcuate rail 3 and a swinging slider 5 running along the arcuate rail 3 so as to be orthogonal to each other.
When the two sets of the arc-shaped rail 3 and the swing slider 5 are distinguished vertically, the one located on the lower base end side is the base end-side arc rail 3A and the base end side swing slider 5A, and the upper action. Those located on the part side are identified as the action part side arc-shaped rail 3B and the action part side swing slider 5B.
[0014]
The leveling device 1 is structurally installed and fixed to the vehicle body frame F, holds the fixed frame 7 provided on the base end side, and the seat S horizontally, and swings the operation unit side provided on the operation unit side. It is configured by including a moving slider 5B, and a base-end-side swing slider 5A provided between the fixed frame 7 and the action-unit-side swing slider 5B.
[0015]
The fixed frame 7 has two side plates 9 arranged at opposing positions, two connecting rods 11 for connecting the two side plates 9, and two two fixed to the inner wall surface of the two side plates 9. It is configured by including a base end side arc-shaped rail 3A and fixing bolts 13 used for fixing these members.
The side plate 9 is a rectangular plate-like member which is fixedly mounted to the vehicle body frame F via a bracket (not shown) or the like.
[0016]
Further, the connecting rod 11 is a round bar-shaped member, and female screws to which fixing bolts 13 are attached are formed on both end surfaces.
Similar connecting rods 11 and fixing bolts 13 are used for a base-end-side swing slider 5A and an action-unit-side swing slider 5B, which will be described later.
The base-end side arc-shaped rail 3A is a rectangular rod-shaped member having a rectangular cross section curved downward so that the center thereof becomes lower. The upper and lower surfaces of the base-end side arc-shaped rail 3A are smooth, and will be described later. It is the sliding contact surface of the moving roller.
An action-portion-side arc-shaped rail 3B described later also has a similar configuration.
[0017]
The action-unit-side swing slider 5 </ b> B freely slides on two outer side walls of the two side plates 15, three connecting rods 11 connecting the two side plates 15, and outer wall surfaces of the two side plates 15. It is configured by including six rolling rollers 17 provided in a state and fixing bolts 13 used for fixing these members.
The side plate 15 is a flat plate-shaped member formed by chamfering the apex of a triangle to form a hexagon. The side plate 15 is connected to the seat S via a bracket (not shown) or the like as appropriate.
[0018]
The rolling roller 17 is a ball-bearing member having a flange 19 formed at one end. A washer 21 is interposed between the rolling roller 17 and the side plate 15, and the side plate 15 is screwed by the fixing bolt 13 and the connecting rod 11. It is mounted in the idle state with respect to.
A rolling roller 17 having a flange 19 of the same configuration and a washer 21 are also provided on a base-end-side swing slider 5A described later.
[0019]
The base-end-side swing slider 5A has a base-end-side swing frame 25 and an action-unit-side swing frame 29 that is integrally connected to the base-end-side swing frame 25. The action-portion-side swing frame 29 is disposed above the base-end-side swing frame 25 and in a direction orthogonal to the base-end-side swing frame 25. The base-end-side swing frame 25 includes two side plates 23 facing each other and three connecting rods 11 connecting the two side plates 23. The action part side swing frame 29 is constituted by two side plates 27 facing each other and two connecting rods 11 connecting these two side plates 27.
Further, the base-end-side swing slider 5A includes two action-portion-side arc-shaped rails 3B fixed to the inner wall surfaces of the two side plates 27 of the action-portion-side swing frame 29, and a base-end-side swing frame. 25, six rolling rollers 17 provided in an idle state with respect to the outer wall surfaces of the two side plates 23, and fixing bolts 13 used for fixing these members.
[0020]
Among them, the side plate 23 provided on the lower base end side is a flat plate-shaped member having the same hexagonal shape as the side plate 15 in the operating portion side swing slider 5B.
The side plate 27 provided on the upper working portion side is a rectangular plate-like member, and the upper corner of the side plate 23 and the lower corner of the side plate 27 are joined by welding. And the action part side swing frame 29 are integrally connected.
[0021]
Next, an operation state of the leveling device 1 of the present invention thus configured will be described.
1) When a rapidly changing horizontal force acts on the fixed frame, for example, when the vehicle starts suddenly or applies a sudden brake, turns a sharp curve, or receives vibrations caused by an earthquake or the like.
In FIG. 4, when the force in the X direction acts on the fixed frame 7, the base end side swing slider 5A moves in the −X direction by a stroke proportional to the magnitude of the applied force, and then gradually. Decays, converges, and returns to a horizontal position.
[0022]
When a force in the Y direction in FIG. 4 acts on the fixed frame 7, the acting portion-side oscillating slider 5B moves in the −Y direction by a stroke proportional to the magnitude of the applied force due to the reaction of the force, and then gradually attenuates. Then, it converges and returns to the horizontal posture.
In FIG. 4, when a force in the Z direction acts on the fixed frame 7, the base end side swing slider 5A moves in the −X direction by a stroke proportional to the X direction component of the applied force due to the reaction of the force. After that, it gradually attenuates, converges, and returns to the horizontal posture.
On the other hand, the acting portion-side swing slider 5B moves in the −Y direction by a stroke proportional to the Y-direction component of the applied force, then gradually attenuates, converges, and returns to the horizontal posture.
[0023]
2) When a gently changing horizontal force acts on the fixed frame, for example, when the vehicle gradually accelerates or decelerates, or when turning while reducing the speed.
In this case, irrespective of the force acting on the fixed frame 7, the base end side swing slider 5A and the action portion side swing slider 5B try to maintain the same position, so that the seat S maintains the horizontal posture.
[0024]
3) When the fixed frame is inclined, for example, when the vehicle is traveling on a long downhill or uphill, or when the vehicle is stopped on an inclined ground.
In this case, the position of the lowest point of the curved arc-shaped rail 3 changes according to the direction and angle at which the fixed frame 7 is inclined, so that the swing slider 5 moves the center of gravity to the position of the lowest point of the arc-shaped rail 3. And the horizontal position of the seat S is maintained.
As described above, the horizontal maintenance device 1 uses the operation of the centrifugal force based on the gravity of the swing slider 5 to maintain the level of the seat S, which is the installation target.
[0025]
Although the embodiment of the present invention has been described in detail above, the specific configuration is not limited to this embodiment, and even if there is a design change without departing from the gist of the present invention, the present invention is not limited to this embodiment. include.
For example, the horizontal maintenance device 1 of the present invention is applied to vehicles other than passenger vehicles, such as ambulances, taxis, buses, trucks, tank trucks, trailers and ships, trains, monorails, cable cars, airplanes, amusement parks, and the like. It can be used to maintain the horizontal attitude of various objects such as seats and beds of vehicles and pallets and containers for cargo handling.
[0026]
In addition, as a countermeasure against earthquakes, liquid leakage caused by tilting or rollover of LPG gas cylinders, plastic tanks containing kerosene, etc., drums or tanks filled with petroleum or flammable chemicals, or water tanks containing tropical fish, etc. In order to prevent damage to the container or the occurrence of a fire, the horizontal maintenance device 1 of the present invention can be provided between the container and the floor on which they are installed.
Further, it is possible to use the horizontal maintenance device 1 of the present invention as a vibration isolator for suppressing the shaking of a building during an earthquake, and to use precision instruments such as various instrument panels and precision balances for which accurate measurement is required. Alternatively, it is of course possible to apply the horizontal maintenance device 1 of the present invention to a storage case or the like that stores easily broken glass products, pottery, liquor bottles, and the like.
[0027]
Also, as shown in FIG. 5, the positional relationship among the fixed frame 7, the base-end-side swing slider 5A, and the action-unit-side swing slider 5B is changed upside down, as shown in FIG. It is also possible to provide a roller conveyor type horizontal maintenance device 33 in which the positional relationship between the arc-shaped rails 3 and the rolling rollers 17 is reversed as shown in FIG.
In addition, a magnet or the like may be provided at the lowest point of the arc-shaped rail 3 in order to speed up the damping and convergence of the oscillating slider 5 or to reduce the oscillating stroke. It is also possible to provide. Further, it is of course possible to provide safety stoppers at both ends of the arc-shaped rail 3 for the purpose of preventing the swing slider 5 from excessively oscillating and dropping from the arc-shaped rail 3.
[0028]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, an installation space is small with an extremely simple structure, and it is possible to always maintain the installation object horizontally without being affected by the inclination and movement of the installation base.
Therefore, it is possible to always enjoy a comfortable drive or voyage without feeling uncomfortable while riding a car or a ship. In addition, it is possible to prevent a load collapse caused by losing the balance that frequently occurs in a tank lorry, a trailer, a carrier ship, or the like, and it is also possible to prevent a liquid leak, a damage to a container, a fire, and the like caused by an earthquake or the like.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing a horizontal maintenance device according to an embodiment of the present invention.
FIG. 2 is a front view showing the horizontal maintenance device according to the embodiment of the present invention.
FIG. 3 is a side view showing the leveling device according to the embodiment of the present invention.
FIG. 4 is a plan view showing a horizontal maintenance device according to the embodiment of the present invention.
FIG. 5 is a front view showing a horizontal maintenance device according to another embodiment of the present invention.
FIG. 6 is a side view showing a horizontal maintenance device according to still another embodiment of the present invention.
[Explanation of symbols]
REFERENCE SIGNS LIST 1 horizontal maintenance device 3 arc-shaped rail 3A base-end-side arc-shaped rail 3B action-section-side arc-shaped rail 5 swing slider 5A base-end-side swing slider 5B action-section-side swing slider 7 fixed frame 9 side plate 11 connecting rod 13 fixing bolt 15 Side Plate 17 Rolling Roller 19 Flange 21 Washer 23 Side Plate 25 Base End Side Swing Frame 27 Side Plate 29 Working Unit Side Swing Frame 31 Suspended Leveling Device 33 Roller Conveyor Type Leveling Device F Body Frame S Seat

Claims (7)

A horizontal maintenance device wherein two sets of an arcuate rail curved downward so as to lower the center and a swing slider running along the arcuate rail are arranged vertically so as to be orthogonal to each other. 2. The horizontal maintenance device according to claim 1, wherein the arc-shaped rail is a rectangular rod-shaped member having a sliding surface on an upper surface and a lower surface, and is swung by a plurality of rolling rollers arranged so as to vertically sandwich the arc-shaped rail. A leveling device, wherein the moving slider is configured to swing. The horizontal maintenance device according to claim 1, wherein the horizontal maintenance device is provided with a fixed frame provided on a base end side for mounting and fixing, and an operation part side swing slider provided on an operation part side for maintaining horizontal. And a base end side swing slider provided between the fixed frame and the action section side swing slider. 4. The horizontal maintenance device according to claim 3, wherein the fixed frame is fixed to the two side plates disposed at opposing positions, a plurality of connecting rods connecting the two side plates, and the two side plates. 5. A horizontal maintenance device comprising two base end side arc-shaped rails. 5. The horizontal maintaining device according to claim 3, wherein the action portion-side swing slider is provided with two side plates arranged at opposing positions, a plurality of connecting rods connecting the two side plates, and A horizontal maintenance device, comprising: a plurality of rolling rollers provided in an idle state with respect to two side plates. In the horizontal maintenance device according to any one of claims 3 to 5, the base end side swing slider includes two side plates arranged at opposing positions and a plurality of connecting rods that connect the two side plates. A base-end-side swing frame provided, and an action-portion-side swing having the same configuration as that of the base-end-side swing frame which is disposed so as to be orthogonal to the base-end-side swing frame and is integrally connected to the base-end-side swing frame A frame, two action portion side arc-shaped rails fixed to two side plates of the action portion side swing frame, and provided in a free running state with respect to the two side plates of the base end portion swing frame. And a plurality of rolling rollers. The leveling device according to any one of claims 1 to 6, wherein the leveling device is a frame serving as an installation base of a vehicle such as an automobile, a ship, an airplane, or a train, and an installation such as a seat or a bed installed on the frame. A level maintaining device provided between an object and an object.

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