JP7397549B1 - lift device - Google Patents

Abstract

An object of the present invention is to provide an elevating device that can ensure stability during an earthquake despite being a simple facility, and that can smoothly ascend and descend. An elevating device 1 includes a pair of opposing elevating guide parts, an elevating floor part 20 that can be moved up and down in an elevating direction DL along the elevating guide parts, and a pair of hoist parts 30 connected to the ends of the elevating guide parts. , 30. The elevating guide portion is fixed to walls 101a and 101b that are provided facing each other. The elevating floor section 20 has a bed main body 28 on which the user can lie down. When the hoist section 30 is operated, the elevating floor section 20 is guided by the elevating guide section and moves up and down in the elevating direction DL. [Selection diagram] Figure 1

Description

TECHNICAL FIELD The present invention relates to a lifting device capable of loading cargo.

People are often forced to live in small spaces in houses and shelters located in cities, and there is an increasing demand for equipment that can efficiently utilize space. In other words, there is a strong need for more efficient use of space.

Patent Document 1 discloses a bed body including a pair of sliding rails offset from the center of gravity, a rail guide for holding the sliding rails in a vertically movable manner, and a stopper for determining the lower end position of the bed body. It consists of a load-bearing column with It is an elevating bed. Further, the weight of the weight is set to be 80% to 100% of the total weight of the bed body and the sliding rail. The elevating bed disclosed in this patent document has a simple structure, has a small number of parts, can be provided at a low cost, and can be raised and lowered in a few seconds using only human power. It will also be possible to install it in rental housing, which is subject to restrictions.

Patent Document 2 discloses an elevating bed in which a bed frame can be raised and lowered along a plurality of guide rails, which incorporates a spirally wound steel strip, and is proportional to the unrolled length of the steel strip. Equipped with a constant force spring that can always apply a constant spring force by changing the spring constant, one end of the steel strip is connected to the bed frame, and the steel strip is wound up as the bed frame moves up and down. , it is constructed so that it can be unwound. The elevating bed disclosed in this patent document has a simple elevating device structure, can be manufactured at low cost, and can effectively utilize indoor space.

Utility model registration No. 3188239 Utility Model Publication No. 5-37165

However, since the inventions proposed in Patent Documents 1 and 2 are cantilever-type elevating beds, the bending at the tip of the bed body is greater than the base of the support, which hinders comfortable sleep. There is a possibility that Furthermore, since a large force is applied to the cantilevered portion, there are concerns about its strength. Furthermore, when an earthquake occurs, the bed body shakes significantly up and down and left and right, so the possibility of the sleeper being thrown off the bed cannot be ruled out.

Furthermore, the invention proposed in Patent Document 1 has a problem in that the weights for balancing the weight occupy a certain amount of space. No significant space savings can be expected. Furthermore, the invention proposed in Patent Document 2 has a problem in that it is difficult to synchronize the operations of the hoisting mechanisms provided on the left and right sides to move up and down.

The present invention has been made with attention to these problems, and aims to provide a lifting device that can ensure stability during an earthquake despite being a simple facility, and that can also move up and down smoothly. .

The invention for solving the above problem is an elevating device, which includes a pair of opposing elevating guide parts, an elevating floor part that can be moved up and down along the elevating guide parts with cargo loaded thereon, and an elevating floor part that can be moved up and down along the elevating guide parts with luggage loaded therein. a pair of hoist parts connected to each of the opposing ends to move the elevating floor part up and down, the elevating guide part being arranged at a predetermined interval in the first direction and extending in the elevating direction; It has two guide rails, the guide rail is fixed to the wall, the elevating floor part has a wheel part that rolls on the guide rail, the guide rail has a pair of opposing flanges, and the wheel part has a first wheel and a second wheel that is located below the first wheel and moves up and down in synchronization with the first wheel, and the first wheel rolls in contact with one flange. Additionally, the second wheel is characterized in that it rolls in contact with the other flange .

According to this configuration, the elevating device includes a pair of opposing elevating guide portions, and an elevating floor portion that can be moved up and down along the elevating guide portions with cargo loaded therein, and the elevating guide portion is the first elevating guide portion. Since it has at least two guide rails that are arranged at a predetermined interval in the direction and extend in the lifting direction, the lifting floor part can move up and down in the lifting direction while maintaining its posture. . Furthermore, since the guide rail is fixed to the wall, it has excellent strength and can ensure durability and stability, especially during earthquakes.

Preferably, each of the wheel portions rolling on at least two guide rails is connected to each other via a first frame extending in a first direction, and the pair of first frames provided opposite each other are connected to each other via a first frame extending in a first direction. The two frames are connected to each other via a second frame extending in a second direction perpendicular to the second direction.

According to this configuration, each of the wheel parts rolling on at least two guide rails is connected to each other via the first frame extending in the first direction, and the pair of first frames provided opposite each other are connected to each other via the first frame extending in the first direction. , are connected to each other via the second frame extending in the second direction orthogonal to the transverse direction, so the wheel portions can be firmly connected via the first frame and the second frame.

Preferably, the hoist section has a pair of sheaves attached to the first frame at predetermined intervals, and a winch that can wind up and unwind the wire while being fixed to the ceiling, and the end of the wire is fixed to the ceiling. and is housed in a winch via the lower ends of a pair of sheaves.

According to this configuration, since the hoist portion constitutes a movable pulley, the load on the winch required to move up and down the elevating floor portion can be reduced.

Preferably, the sheave is arranged between the wall and the first frame.

According to this configuration, the sheave is disposed in the gap created between the wall and the first frame, so it is possible to save space in the equipment.

Preferably, the pair of flanges face each other along the first direction.

According to this configuration, the first wheel rolls on one flange along the first direction, and the second wheel rolls on one flange along the first direction, so that the elevating floor part maintains a stable posture. It is possible to move up and down while ensuring that.

Preferably, the guide rail is equipped with a descent limiter that restricts the downward movement of the elevating floor, and when the elevating floor reaches the lower limit position, the elevating floor and the descent restricting portion are fitted into each other. It is characterized by

According to this configuration, the guide rail is equipped with a descent limiter that restricts the downward movement of the elevating floor, and when the elevating floor reaches the lower limit position, the elevating floor and the descent restricting section are fitted into each other. As a result, displacement of the elevating floor section in the first direction and the second direction is strongly suppressed at the lower limit position.

Preferably, the guide rail is equipped with a rise limiting part that limits the upward movement of the elevating floor part, and when the elevating floor part reaches the upper limit position, the elevating floor part and the rising restricting part are fitted into each other. It is characterized by

According to this configuration, the guide rail is equipped with a rise restriction part that restricts the upward movement of the elevating floor part, and when the elevating floor part reaches the upper limit position, the elevating floor part and the rise restriction part are fitted into each other. As a result, displacement of the elevating floor section in the first direction and the second direction is strongly suppressed at the upper limit position.

Preferably, the elevating floor section is characterized by having a bed body on which the user can lie down.

According to this configuration, since the elevating floor part has a bed body on which the bed body can lie down, the elevating device can be effectively used as a bed that can be installed in a living space where space saving is required or an evacuation space of a shelter.

It is a front sectional view of the elevating device installed in the underground shelter. It is a side view of the same. It is a plan sectional view of the same. FIG. 3 is a partial side sectional view illustrating the arrangement of a first wheel and a second wheel. FIG. 3 is a side view of the rise restriction section. FIG. 3 is a side view of the lowering limiter. This is a modification of the hoist section.

Hereinafter, an embodiment of the lifting device 1 of the present invention will be described in detail with reference to FIGS. 1 to 6.

As shown in FIGS. 1 and 2, the elevating device 1 includes a pair of opposing elevating guide parts 10, 10, an elevating floor part 20 that can be moved up and down in the elevating direction DL along the elevating guide parts 10, and an end of the elevating guide part 10. A pair of hoist parts 30, 30 connected to the parts are provided. The elevation guide parts 10, 10 are fixed to walls 101a, 101b that are provided opposite to each other. The elevating floor section 20 has a bed main body 28 on which the user can lie down. When the hoist section 30 is operated, the moving direction of the elevating floor section 20 is guided by the elevating guide section 10, and the elevating floor section 20 moves up and down in the elevating direction DL.

Although the elevating device 1 is installed in the indoor space of the shelter 100, it is not limited thereto. It can also be installed in a residence. Further, although the shelter 100 is a so-called underground shelter that is partially or entirely provided underground 120, it may be a shelter that is provided above ground.

The elevating guide section 10 is composed of two guide rails 50 and 60 extending in the elevating direction DL. The two guide rails 50 and 60 are arranged at a predetermined interval in the first direction D1 and are fixed to the wall 101a. Note that the guide rails 50, 60 form a pair, one guide rail 50, 60 being fixed to the wall 101a, and the other guide rail 50, 60 being fixed to the wall 101b facing the wall 101a. In this embodiment, the number of guide rails is two, but it is not limited to this. It is sufficient if there are a plurality of pieces, and the number may be three or more pieces.

Wheel parts 70a and 70b that roll on the guide rails 50 and 60 as will be described later are connected to each other via a first frame 21 that extends in the first direction D1. The first frames 21 form a pair and are provided facing each other. The pair of first frames 21, 21 are connected via a second frame 22 extending in the second direction D2. The first frame 21 and the second frame 22 are rigidly connected and form a ladder shape. Here, the first direction D1 is a direction along the wall 101a or the wall 101b, and the second direction D2 is a direction orthogonal to the first direction D1. Further, the lifting direction DL is a direction perpendicular to the first direction D1 and the second direction D2.

The bed body 28 is removably fixed to the second frame 22. It is preferable that the shape of the bed body 28 is large enough for the evacuee to lie down and sleep. It is also preferable that the device be lightweight and foldable. In this embodiment, the shape is determined assuming that the evacuee lies down along the second direction D2, but the shape is not limited to this. The shape may be determined assuming that the evacuee lies down along the first direction D1. Further, if the distance between the opposing walls 101a and 101b is wide, the shape may be such that two or more people can lie down in a row.

It is preferable that the bed main body 28 can maintain a horizontal posture at the lower limit position. Thereby, by lying down on the bed body 28, a comfortable sleep can be ensured.

A storage portion 29 is provided below the bed body 28 in which luggage (not shown) to be loaded can be stored. The storage section 29 has a height that does not contact the floor 103 when the elevating floor section 20 reaches the lower limit position, and a height that allows walking directly under the elevating floor section 20 when the elevating floor section 20 reaches the upper limit position. It is preferable. Note that the luggage may be loaded on the bed body 28. In this case, it is preferable that the cargo is shaped so that it does not come into contact with the ceiling 102 when the elevating floor section 20 reaches the upper limit position.

The hoist section 30 includes a pair of sheaves 31, 31, and a winch 32 that can wind up and unwind the wire 33. The sheave 31 is a disc-shaped member that can rotate about its axis, and the axis is fixed to the second frame 22 at predetermined intervals. The sheave 31 is arranged in a gap created between the wall 101a and the second frame 22.

The winch 32 is fixed to the ceiling 102. One end of the wire 33 is fixed to the ceiling 102, and is housed in the winch 32 via the lower ends of the pair of sheaves 31, 31. That is, the sheave 31 and winch 32 constitute a movable pulley. When the winch 32 is operated to wind up the wire 33, the sheave 31 moves upward with rotation. The elevating floor section 20 that rotatably fixes the sheave 31 moves up and down in synchronization with the sheave 31. Furthermore, the moving direction is limited to the lifting direction DL by the lifting guide section 10.

As shown in FIGS. 3 and 4, the guide rails 50 and 60 are fixed to the walls 101a and 101b and extend along the lifting direction DL. The guide rail 50 is a member having a groove-shaped cross section, and has a first flange 51 and a second flange 52 facing each other. The first flange 51 and the second flange 52 are connected via a web 53. The second flange 52 is fixed to the wall 101a. Since the guide rail 60 and the first flange 61, second flange 62, and web 63 that constitute the guide rail 60 have almost the same configuration as the guide rail 50, the first flange 51, the second flange 52, and the web 53, Explanation will be omitted.

The wheel portion 70a rolling on the guide rail 50 has a first wheel 71a and a second wheel 72a. The first wheel 71a and the second wheel 72a are fixed to the first frame 21 and have a structure that allows them to rotate around a rotation axis. The first wheel 71a rolls on the first flange 51, and the second wheel 72a located below the first wheel 71a rolls on the second flange 52.

The wheel portion 70b rolling on the guide rail 60 has a first wheel 71b and a second wheel 72b. The first wheel 71b and the second wheel 72b are fixed to the first frame 21 and have a structure that allows them to rotate around their respective rotation axes. The first wheel 71b rolls on the first flange 61, and the second wheel 72b located below the first wheel 71b rolls on the second flange 62.

The first frame 21 connects the first wheels 71a, 71b and the second wheels 72a, 72b, and the opposing first frames 21, 21 connect via the second frame 22, so that the elevating floor part 20 It is possible to stabilize the posture when moving up and down.

A mechanism in which the elevating floor section 20 moves up and down in the elevating direction DL while maintaining its posture will be described with reference to FIGS. 3 and 4.

When the elevating floor section 20 is about to displace from the wall 101a to the wall 101b, the first wheels 71a, 71b are pressed against the first flanges 51, 61, and the second wheels 72a, 72b are pressed against the first flanges 51, 61. 2 flanges 52 and 62, and a force acts on the elevating floor portion 20 to cause it to displace from the wall 101b toward the wall 101a. As a result, the elevating floor section 20 attempts to return to its original position.

Similarly, when the elevating floor section 20 attempts to displace from the wall 101b to the wall 101a, a force that tends to displace the elevating floor section 20 from the wall 101a toward the wall 101b acts on the elevating floor section 20. As a result, the elevating floor section 20 attempts to return to its original position.

As shown in FIG. 5, a lower end portion of the guide rail 50 is provided with a descent limiting portion 15a. Similarly, a lower end portion 15b of the guide rail 60 is attached to the lower end portion. The descent restriction portion 15a protrudes from the first flange 51 of the guide rail 50 toward the opposing wall 101b. The descent restriction portion 15b protrudes from the first flange 61 of the guide rail 60 toward the opposing wall 101b. Convex portions 16a, 16b are provided on the descent limiting portions 15a, 15b. The heights of the protrusions 16a and 16b from the floor 103 are set to be the same.

Attached to the lower end of the first frame 21 are abutting parts 76a and 76b in which concave parts 77a and 77b corresponding to the convex parts 16a and 16b are provided. The descending movement of the elevating floor section 20 is restricted by the contact between the descending limiters 15a and 15b and the abutting sections 76a and 76b, and the elevating and descending section reaches the lower limit position. At the same time, the convex portions 16a, 16b and the concave portions 77a, 77b are loosely fitted. Thereby, movement of the elevating floor section 20 in the first direction D1 and the second direction D2 is restricted.

For example, if you evacuate to a shelter after an earthquake, there is a high possibility that aftershocks will occur, and it is assumed that the elevating floor section 20 will shake or be damaged due to the aftershocks. This situation can be avoided by loosely fitting the recesses 77a and 77b. Thereby, the evacuee can sleep on the bed body 28 with peace of mind.

As shown in FIG. 6, a rise limiting portion 17a is attached to the upper end of the guide rail 50. Similarly, a rise limiter 17b is attached to the upper end of the guide rail 60. The structure of the upward limiters 17a and 17b is almost the same as that of the downward limiter, so a description thereof will be omitted.

At both ends of the second frame 22, abutting portions 78a and 78b are mounted, in which recessed portions 79a and 79b corresponding to the convex portions 18a and 18b are provided. The upward movement of the elevating floor section 20 is restricted by the contact between the ascent restricting sections 17a and 17b and the abutting sections 78a and 78b, and the elevating and descending section reaches the upper limit position. At the same time, the convex portions 18a, 18b and the concave portions 79a, 79b are loosely fitted. Thereby, movement of the elevating floor section 20 in the first direction D1 and the second direction D2 is restricted.

This embodiment is an example, and it goes without saying that modifications can be made without departing from the technical idea of the present invention. For example, as shown in FIG. 7, the hoist section 230 may have a fixed sheave 231 fixed to the wall 201. In this case, the force required to raise and lower the elevating floor section 20 can be halved compared to the hoist section 30 of this embodiment.

As mentioned above, the elevating device according to the present invention can be used as an elevating bed installed in a shelter, and can also be used for unloading and unloading work in factories, and as equipment for raising and lowering the floor of a residence to change the height. is also possible. As described above, it has a wide range of applications and has great industrial applicability.

1: Elevating device 10: Elevating guide parts 15a, 15b: Descent limiting parts 16a, 16b: Elevating limiting part 20: Elevating floor part 21: First frame 22: Second frame 28: Bed main body 30: Guide rail part 30
31: Sheave 32: Winch 33: Wires 50, 60: Guide rails 51, 61: First flanges 52, 62: Second flanges 70a, 70b: Wheel portions 71a, 71b: First wheels 72a, 72b: Second wheels 101a , 101b: Wall 102: Ceiling 103: Floor D1: First direction D2: Second direction DL: Lifting direction

Claims (8)

a pair of opposing lifting guide parts;
an elevating floor part that can be moved up and down along the elevating guide part with cargo loaded therein;
a pair of hoists connected to opposite ends of the elevating floor section to move the elevating floor section up and down;
The elevating guide section has at least two guide rails arranged at a predetermined interval in the first direction and extending in the elevating direction, the guide rails being fixed to a wall, and the elevating floor section It has a wheel part that rolls on a guide rail ,
The guide rail has a pair of opposing flanges,
The wheel portion includes a first wheel and a second wheel that is located below the first wheel and moves up and down in synchronization with the first wheel,
A lifting device characterized in that the first wheel rolls while being in contact with one of the pair of flanges, and the second wheel rolls while being in contact with the other of the pair of flanges . Each of the wheel units rolling on at least two guide rails is connected to each other via a first frame extending in a first direction, and the pair of first frames provided facing each other are perpendicular to the first direction. The elevating device according to claim 1, wherein the elevating device is connected to the elevating device via a second frame extending in a second direction. The hoist section includes a pair of sheaves that are attached to the first frame at predetermined intervals, and a winch that can wind up and unwind the wire while being fixed to the ceiling, and the end of the wire is fixed to the ceiling. 3. The lifting device according to claim 2, wherein the lifting device is housed in a winch via lower ends of the pair of sheaves. The lifting device according to claim 3, wherein the sheave is arranged between the wall and the first frame. The elevating device according to claim 1 , wherein the pair of flanges face each other along the first direction. The guide rail is equipped with a descent restriction portion that restricts the descent movement of the elevating floor portion;
The elevating device according to claim 1, wherein when the elevating floor portion reaches a lower limit position, the elevating floor portion and the descent limiting portion are fitted into each other. The guide rail is equipped with a rise limiting part that limits the upward movement of the elevating floor part,
The elevating device according to claim 1, wherein when the elevating floor portion reaches the upper limit position, the elevating floor portion and the rise limiting portion are fitted into each other. The elevating device according to any one of claims 1 to 7 , wherein the elevating floor section has a bed main body on which a person can lie down.

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