JP2942792B2 - Lifting equipment for pool floors, etc. - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lifting device such as a pool floor that moves up and down along a wall surface of a pool or the like.

[Conventional technology and its problems]

In recent years, swimming has become popular as a sport that can be performed from infants to the elderly, along with heightened awareness of health care, so pools that are formed to the depth where adults can swim are used for middle or infants In order to be able to do this, various lifting devices such as a pool floor for raising and lowering the pool floor have been proposed.

An example of such a conventional elevating device such as a pool floor is described below. An elevating floor that can move up and down along a wall surface of the pool is fitted into an opening of the pool having a concave cross section. It is known that wire ropes are connected to the four corners of the above, and that the wire rope is wound up or unwound to raise and lower the elevating floor.

However, in the conventional elevating device such as a pool floor, in order to move the elevating floor horizontally, the wire ropes connected to the four corners of the elevating floor must be synchronously pulled. Therefore, there has been a problem that the pulling means of the wire rope becomes complicated and the entire apparatus becomes expensive.

The present invention has been made in view of the above situation, and an object thereof is to provide a pool floor or the like which has a simple configuration and can easily raise and lower a floor such as a pool with a simple configuration and is easy to maintain. It is intended to provide a lifting device.

[Configuration to solve the problem]

In order to achieve the above object, according to the present invention, an elevating device such as a pool floor is horizontally rotatably disposed on at least four corner lower surfaces of an elevating floor mounted so as to be able to move up and down along a wall surface of a pool or the like. A plurality of pulleys, a plurality of support pillars inserted through four corners of the lifting floor, and screwed with the pulleys, a connecting member wound around the plurality of pulleys, and a plurality of pulleys. And a pulley drive mechanism for driving one of the pulleys.

(Operation)

Therefore, in the elevating device for a pool floor or the like according to the present invention, when raising or lowering the elevating floor, one pulley is rotated in one of the forward and reverse directions by the pulley driving means.

Along with this, the other pulley is synchronously rotated via a connecting member wound around the one pulley, and the rotation of the pulley causes the pulley to move up and down while being screwed with each of the support columns. The elevation floor is moved up and down by vertical movement, and
The lifting floor can be held at a desired position.

〔Example〕

Hereinafter, the present invention will be described in detail based on an embodiment shown in the accompanying drawings.

As shown in FIG. 1, in this embodiment pool 1
The opening 1a is formed to have a concave cross section, and the elevating floor 10 is fitted in the opening 1a so as to be able to ascend and descend along the wall surface 1b of the pool 1, and at the four corners of the elevating floor 10 Is
As shown in FIG. 2, the support column 20 is penetrated,
The lift floor 10 is configured to be lifted and lowered via the pulley 30 that glare.

The elevating floor 10 has a large number of flooring members 11 formed of a synthetic resin, aluminum material or stainless steel and formed in a rectangular tube shape, and as shown in FIG. And is integrally connected to and supported by a support frame 12 disposed at the same position.

The connection between the support frame 12 and the floor material 11 can be performed by, for example, bolts and nuts 13 as shown in FIG. 3, but can also be connected by other known means such as welding.

Although not shown, the floor material 11 is configured such that both ends thereof are closed via a cap body.
The air is sealed inside the floor to raise and lower the floor 10 in water.
The weight of the lift is offset with the buoyancy to become substantially “zero”, so that the labor for raising and lowering the lifting floor 10 is further reduced.

In addition, the floor materials 11 are connected in a required number so that a floor area slightly smaller than the area of the opening 1a is obtained, and the lower surfaces of the four floors of the lifting floor 10 are shown in FIG. As described above, the swing prevention mechanism 14 for preventing the swing in the horizontal direction is attached.

The swing prevention mechanism 14 is composed of a bracket 14a fixed to the lower surface of the lifting floor 10 at the four corner lower surfaces, and an elastic roller 14b rotatably held by the bracket 14a. It is attached to be in contact with the wall 1b of the pool 1.

Holes 10a are provided at the four corners of the lift floor 10 thus configured.
The support pillars 20 each having a male screw 20a engraved on the outer periphery are loosely fitted in the holes 10a.

The support columns 20 are erected in a normal state penetrating the four corners of the pool 1, and pulleys 30 to be described later are threaded around the body of the support columns 20 located on the lower surface of the elevating floor 10.

In addition, by forming the support column 20 as a tubular body as in the embodiment, it is possible to obtain a larger stress for bending than a simple rod-shaped body, and it is possible to reduce the weight, which is convenient for transportation and handling. .

On the other hand, the lower end of the support column 20 is fixed to a bracket 21 fixed to the bottom surface 1c of the pool 1. The bracket 21 is fixed to the bottom surface 1c of the pool 1 via an anchor bolt (not shown). Of course, instead of this,
The lower end of the support column 20 can be directly buried in the bottom surface 1c of the pool 1.

On the other hand, a pulley 30 screwed around the outer periphery of the support column 20
The female screw 30a engraved on the inner circumference of the support column 2
It is screwed with the 0 male screw 20a and is screwed on the lower surface of the four corners of the elevating floor 10 so as to be rotated while maintaining a horizontal state.

In FIG. 3, reference numeral 31 denotes a bearing interposed between the pulley 30 and the lower surface of the elevating floor 10, and
Reference numeral 32 denotes a bearing disposed on the female screw 30a of the pulley 30.

The pulley 30 has a groove 30b having a V-shaped cross section on its outer periphery, and the wire rope 40 is wound around the groove 30b in a state of being wound twice.

That is, the wire rope 40 is connected to each pulley of each support column 20.
Each of the pulleys 30 is wound twice in a wound state, so that the pulleys 30 can be synchronously rotated with a small rotational operation force while preventing slippage between the wire rope 40 and each pulley 30.

Note that a chain may be used instead of the wire rope 40.

As shown in FIG. 5, the pulley driving means 50 for rotating and driving the pulley thus screwed is composed of a screw rod 51 and a drive source 52 for driving the screw rod 51. .

The screw rod 51 has a male screw 51a engraved on the outer periphery of its body, and its lower end is rotatably supported by a bearing member 52 fixed to the bottom surface 1c of the pool 1, and Near its upper end is a bearing member fixed to the wall 1b of the pool 1.
It is rotatably supported by 53.

The screw rod 51 has an upper end protruding above the upper end of the opening 1a of the pool 1, and a bevel gear 54 is fixed to the protruding end.

On the other hand, the drive source 52 is composed of an electric motor having a speed reducer, and a bevel gear 55 that meshes with the bevel gear 54 is fixed to the tip of the drive shaft 52a.

The pulley 30 rotated by the pulley driving means 50 is
The flange portion 30c (see FIG. 3) has a wide annular flange portion 32, and a gear portion 32a formed on the outer periphery of the flange portion 32 is a male screw 51a of the screw rod 51. It is configured to mesh with.

Next, when raising and lowering the raising and lowering floor 10 by the raising and lowering device such as the pool floor configured as described above, first,
As shown in FIG. 5, the drive source 52 is turned on and the bevel gear 55 is turned on.
By rotating the bevel gear 54 of the screw rod 51 meshing with the bevel gear 55 in one direction, the screw rod
The gear portion 32a of the flange portion 32 that meshes with the male screw 51a of the 51 rotates,
As a result, the pulley 30 rotates, and with this rotation of the pulley 30, the other pulleys 30 also rotate synchronously via the wire rope 40.

By the synchronous rotation of each pulley 30, each pulley 30 moves up and down along each support column 20, and the up and down floor 10 moves up and down along the wall surface 1b of the pool 1 by the up and down movement of each pulley 30,
And it can be stopped at the position of the post.

In the illustrated embodiment, the height dimension of each support column 20 has been described as an example in which the height of the lifting floor 10 is set at the height at which the floor 10 stops at the height for children. It goes without saying that the height dimension can be set to an appropriate height depending on the purpose of use.

〔The invention's effect〕

As described above, the elevating device for the pool floor or the like according to the present invention performs the elevating operation of the elevating floor fitted to the opening of the pool or the like by the pulleys and the support columns disposed on the four corner lower surfaces of the elevating floor. And the rotation of the pulley is performed by a simple pulley driving means, so that the raising and lowering floor can be set horizontally at a desired height position by a simple mechanism, and of course, the cost is greatly reduced. There are many excellent effects such as reduction and easy maintenance.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a pool to which a lifting device such as a pool floor according to an embodiment of the present invention is applied, FIG. 2 is a plan view showing the lifting floor, and FIG. 3 is an enlarged view of the lifting device. FIG. 4 is a front view showing a swing preventing mechanism on the ascending / descending floor, and FIG. 5 is a partially enlarged view showing a pulley driving mechanism. [Explanation of Signs] 1… Pool, 1a… Pool opening 1b… Pool wall, 1c… Pool bottom 10 …… Raising floor, 20… Support column 30… Pulley, 40… Wire Rope 50 ... Pulley driving means

Claims (1)

(57) [Claims] 1. A plurality of pulleys horizontally rotatable on at least four corner lower surfaces of an elevating floor mounted so as to be able to ascend and descend along a wall surface of a pool, and are inserted through four corners of the elevating floor, and A plurality of support columns screwed with the pulley, a connecting member wound around the plurality of pulleys, and a pulley driving mechanism for driving one of the plurality of pulleys. Elevating equipment such as pool floors.