JP6786339B2 - Counterweight guidance device - Google Patents

Description

The present invention relates to a counterweight guidance device that guides the raising and lowering of a counterweight in an elevator type parking device.

FIG. 1 is a schematic view showing an elevator type parking device 1.
The elevator type parking device 1 includes a cage 3 in which four corners are suspended from a suspension rope 2 (for example, a wire rope) to move up and down a vertical hoistway, and an elevating mechanism 4 for raising and lowering the cage 3.

The elevating mechanism 4 includes a sheave drive device 5, a driven sheave 6, a drive sheave 7, and a counterweight 8. The sheave drive device 5 rotates the drive sheave 7. An intermediate portion of the hanging rope 2 is hung on the drive sheave 7, one end of the hanging rope 2 is fixed to the cage 3, and the other end of the hanging rope 2 is fixed to the counterweight 8. ..

Therefore, when the drive sheave 7 rotates, the hanging rope 2 hung on the drive sheave 7 is fed out toward the cage 3 or pulled up from the cage side toward the counterweight 8 depending on the direction of rotation. As a result, the cage 3 moves up and down. In the example of FIG. 1, four such hanging ropes 2 are provided. Each of these four hanging ropes 2 extends from the four corners of the cage 3 and is hung on the driven sheave 6, the driving sheave 7, and the driven sheave 6 in this order, and extends to the counterweight 8.

The elevating mechanism 4 described above is called a traction type (friction type) because the cage 3 is elevated and lowered by the frictional force between the drive sheave 7 and the suspension rope 2. The traction type elevating mechanism 4 is suitable for many parking devices from low to high rise.
In addition, in order to reduce the diameter of the drive sheave 7 of the elevating mechanism 4, the four corners of the cage 3 may be suspended by a plurality of (for example, two) suspension ropes 2.

On the other hand, another drum type is known as the elevating mechanism 4. The drum-type elevating mechanism 4 winds the hanging rope 2 around a cylindrical drum, winds up the hanging rope 2, and rewinds the hanging rope 2. The drum type elevating mechanism 4 is suitable for a low-rise to middle-rise parking device.

The conventional elevator type parking device described above usually includes an elevating guide mechanism for guiding the elevating and lowering of the counterweight 8.
The elevating guide mechanism of the counterweight 8 is disclosed in, for example, Patent Documents 1 and 2.

In Patent Documents 1 and 2, counterweights are attached so as to be able to move up and down along a pair of guide rails via a plurality of guide shoes.

Japanese Unexamined Patent Publication No. 2004-91135 Japanese Unexamined Patent Publication No. 11-35245

In Patent Documents 1 and 2, the pair of guide rails is a member having a T-shaped cross section fixed to the main body of the apparatus, and has convex portions that extend continuously in the vertical direction. On the other hand, a recess is formed in the plurality of guide shoes, and a convex portion of the guide rail is fitted in the recess to prevent the counterweight from swinging or falling during ascending / descending.

The guide rail has high flexural rigidity and is firmly fixed to the main body of the device. Further, the guide shoe is firmly fixed to the counterweight directly or via a mounting bracket.

When an earthquake or the like occurs, a large horizontal force (hereinafter, "excessive horizontal force") proportional to the weight of the counterweight acts on the above-mentioned elevating guide mechanism.
Conventional guide shoes are usually made of a lubricating resin (eg, engineering plastic). Therefore, when an excessive horizontal force acts on the elevating guide mechanism, the guide shoe may be damaged, and the debris may be scattered or dropped, damaging the stored vehicle or the like.

In addition, if the guide shoe is surrounded by a highly rigid reinforcing metal fitting to prevent damage to the guide shoe, the bolt fixing the reinforcing metal fitting to the counterweight may break or the guide rail may be deformed due to excessive horizontal force. was there.
If the bolt breaks, the bolt, guide shoe, reinforcing metal fitting, etc. will fall, increasing the possibility of damaging the stored vehicle or the like. Further, if the guide rail is deformed, it takes a long time to replace the guide rail, and the restoration of the device is delayed.

The present invention has been devised to solve the above-mentioned problems. That is, an object of the present invention is to provide a counterweight guide device that can prevent debris from scattering or falling even when an excessive horizontal force acts due to an earthquake or the like, and can recover in a short period of time. ..

According to the present invention, a guide rail that extends continuously in the vertical direction along the hoistway and has a guide surface that prevents horizontal movement of the counterweight.
A sliding guide fixed to the counterweight and guiding the counterweight up and down along the guide rail is provided.
The sliding guide includes a guide shoe having a U-shaped sliding surface that faces the guide surface and extends in the vertical direction and surrounds the guide surface .
It has a shatterproof member fixed to the outer surface of the guide shoe.
The guide shoe is an integral part and is composed of a plurality of segments separated from each other by an excessive horizontal force acting on the counterweight.
The scattering prevention member is an integral part which can be deformed together with a plurality of the segments, and are fixed respectively to the plurality of segments,
The guide surface has two outer planes extending in the width direction of the counterweight and parallel to each other and end faces orthogonal to the outer planes.
The plurality of the segments consist of one first segment having a second sliding surface facing the end surface and a pair of second segments having a first sliding surface facing the outer plane.
The first segment is fixed to the counterweight with the shatterproof member on its outer surface sandwiched between them.
The widthwise inner end of the second segment is integrated with the first segment so that the excessive horizontal force in the thickness direction of the counterweight is transmitted to the second segment via the first segment. Are connected
The guide shoe is provided with a counterweight guide device having a concave groove along a virtual boundary surface separated from each other by the excessive horizontal force at the inner end portion in the width direction .

According to the configuration of the present invention, the guide shoes are composed of a plurality of segments separated from each other by an excessive horizontal force. Therefore, when an excessive horizontal force acts due to an earthquake or the like, the guide shoe is divided into a plurality of predetermined segments.

Further, the shatterproof member fixed to the outer surface of the guide shoe is an integral part that can be deformed together with the plurality of segments, and is fixed to each of the plurality of segments. Therefore, even if the guide shoe is divided into a plurality of segments, it is fixed to the scattering prevention member which is an integral part, so that it is possible to prevent the guide shoe fragments from scattering and falling.

Further, even if the guide shoe or the shatterproof member is damaged or deformed due to an earthquake or the like, the entire sliding guide can be easily and quickly replaced by attaching and detaching bolts, so that the sliding guide can be restored in a short period of time.

It is a schematic diagram which shows the elevator type parking device. It is a perspective view which shows the embodiment of the elevator type parking device provided with the counterweight guide device according to this invention. It is a perspective view which shows the counterweight guide device of 1st Embodiment by this invention. It is a front view (A) of the part A of FIG. 3 and the sectional view (B) of BB thereof. FIG. 4B is an enlarged view of a sliding guide, a guide shoe, and a shatterproof member of FIG. 4B.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, the same reference numerals are given to the common parts in each figure, and duplicate description is omitted.

FIG. 2 is a perspective view showing an embodiment of an elevator type parking device 10 provided with a counterweight guidance device according to the present invention.

In this figure, P is a pallet on which a vehicle is placed, 13 is a hoistway, and K is a cage that moves up and down the hoistway 13.

In FIG. 2, the elevator parking device 10 includes a plurality of (four sets in this example) suspension ropes 12A, a single counterweight 14, a plurality of upper sheaves 16, and a drum-type elevating mechanism 18.

The plurality of suspension ropes 12A suspend the four corners of the cage K on which the vehicle is placed, extend vertically upward, and are moved up and down in synchronization with each other from the upper part of the hoistway 13.
The elevating mechanism 18 is installed in the upper part of the hoistway 13, and a plurality of suspension ropes 12A are synchronously elevated and lowered. In this example, the elevating mechanism 18 has a cylindrical drum 18a and a drum driving device 18b that rotationally drives the drum 18a.

In this example, the four sets of hanging ropes 12A have the lower ends 11a fixed to the four corners of the cage K on which the vehicle is placed, the cage K is suspended and extends vertically upward, and the drums are passed through (or directly) the upper sheave 16. It is wrapped around 18a.
Further, the lower ends 11b of the other two sets of hanging ropes 12B are fixed to both upper ends of the counterweight 14 and are wound around the drum 18a via the upper sheave 16.
The winding directions of the hanging rope 12A and the hanging rope 12B with respect to the drum 18a are opposite to each other, and when one is wound, the other is wound.

The hanging rope 12A and the hanging rope 12B are preferably wire ropes, and may have the same dimensions and materials.
Further, although the number of hanging ropes 12A and 12B is one in this figure, it is preferable that the number of hanging ropes is two or more. The diameter of the upper sheave 16 (pulley) can be reduced by forming each set of hanging ropes 12A and 12B with two or more ropes.

The counterweight 14 is preferably set to a weight that reduces the drive load by adding the weight distribution in the presence or absence of the vehicle (for example, the weight of the pallet P) to the weight of the cage K.
With the above-described configuration, the weight on the cage side and the weight on the counterweight side cancel each other out via the drum 18a, so that the drive load of the drum drive device 18b can be reduced.
The elevator type parking device to which the present invention is applied is not limited to the above-mentioned example as long as it includes the counterweight 14. For example, the elevator parking device may have the traction type elevating mechanism shown in FIG.

FIG. 3 is a perspective view showing the counterweight guide device 20 according to the first embodiment of the present invention.
In this figure, the counterweight guide device 20 includes a guide rail 22 and a sliding guide 24.

The guide rail 22 extends continuously in the vertical direction along the hoistway 13.
In this example, a pair of guide rails 22 are located parallel to each other and are firmly fixed to a fixed portion (not shown) of the elevator type parking device 10. The guide rails 22 are not limited to one pair (two), and may be one or three or more.

Further, the guide rail 22 has a guide surface 23 for preventing the counterweight 14 from moving horizontally.
In this example, the guide surface 23 has two outer planes 23a parallel to each other and an end surface 23b intersecting (orthogonal in this example) the two outer planes 23a parallel to each other, as shown in FIG. 5A. The outer plane 23a and the end surface 23b are continuously positioned without a step over the moving range of the sliding guide 24.
In this example, the guide rail 22 is a square pipe having a square cross section, but is not limited to this, and may be a rolled material or a welded structure having a T-shaped, L-shaped, or rectangular cross-section.

In FIG. 3, the sliding guide 24 is fixed to the counterweight 14 and guides the counterweight 14 so as to be able to move up and down along the guide rail 22. In this example, two sliding guides 24 are fixed to both side surfaces of the counterweight 14 in the width direction (X direction in FIG. 5A).

FIG. 4 is a front view (A) of a portion A of FIG. 3 and a sectional view (B) thereof.

In FIGS. 4A and 4B, the sliding guide 24 is firmly fixed to the guide mounting bracket 30 by the shoe fixing bolt 31 and the nut, and the guide mounting bracket 30 is firmly fixed to the counterweight 14 by the guide fixing bolt 32. It is fixed.
The guide mounting bracket 30 is a welded structure made of a steel plate in this example, and is high in that a large horizontal force (excessive horizontal force) acting on the counterweight 14 can be reliably transmitted to the guide rail 22 via the sliding guide 24. It has rigidity.

In FIGS. 4A and 4B, the sliding guide 24 has a guide shoe 26 and a shatterproof member 28.
The guide shoe 26 is preferably an engineering plastic having a small sliding resistance with respect to a metal surface, for example, a polyamide resin.

FIG. 5 is an enlarged view of the sliding guide 24 of FIG. 4B and an enlarged view of the guide shoe 26 and the shatterproof member 28.

In FIG. 5B, the guide shoe 26 has a sliding surface 27 that slides along the guide rail 22. The sliding surface 27 is located so as to face the guide surface 23 of the guide rail 22, and extends in the vertical direction (perpendicular to the paper surface in the drawing).
In this example, the sliding surface 27 is composed of two first sliding surfaces 27a facing the two outer planes 23a and one second sliding surface 27b facing the end surface 23b, and surrounds the guide surface 23. It is a concave surface of a glyph.

The excessive horizontal force acting on the sliding guide 24 due to an earthquake or the like is the width direction of the counterweight 14 (X direction in FIG. 5A) and the thickness direction of the counterweight 14 (Y direction in FIG. 5A). Can be thought of as acting on.
In this case, the first horizontal force FX in the X direction is supported by the end surface 23b of the guide rail 22 via the second sliding surface 27b, and the second horizontal force FY in the Y direction is supported via the first sliding surface 27a. It is supported by the outer plane 23a of the guide rail 22.

In FIG. 5B, the guide shoe 26 is composed of a plurality of segments 26a, 26b, 26c separated from each other by an excessive horizontal force acting on the counterweight 14. The plurality of segments 26a, 26b, 26c are integrally formed in this example, and their shapes and dimensions are set so as to be separated at a predetermined position due to an expected excessive horizontal force.

The virtual boundary surface b (indicated by a broken line in the figure) in which the plurality of segments 26a, 26b, and 26c are separated from each other is preferably set in advance starting from a stress concentration point generated in the guide shoe 26 due to an excessive horizontal force.
Further, the guide shoe 26 may be provided with a concave groove c (for example, a slit) at a stress concentration portion along the virtual boundary surface b.

The plurality of segments is three in this example, but the present invention is not limited to this, and may be two or four or more.
Further, the planned position to be separated, for example, the virtual boundary surface b does not have to be strictly accurate, and may be separated at a position other than the planned position.

With the above configuration, the guide shoe 26 can be divided into a plurality of preset segments 26a, 26b, 26c by the excessive horizontal force acting on the counterweight 14, and the generation of debris other than the segments can be minimized. Can be done.

In FIGS. 5A and 5C, the shatterproof member 28 is an integral part that can be deformed together with the plurality of segments 26a, 26b, and 26c, and is fixed to the outer surface of the guide shoe 26.

In this example, the shatterproof member 28 is, for example, a member obtained by bending a thin metal plate having a thickness of 0.5 to 2 mm into a U shape. As shown in FIG. 5A, the three U-shaped inner surfaces 29a, 29b, and 29c are fixed to the plurality of segments 26a, 26b, and 26c, respectively.
In this example, the segment 26a and the inner surface 29a are fixed by fastening the adhesive applied between them, the shoe fixing bolt 31, and the nut. Further, the adhesion between the segments 26b and 26c and the inner surfaces 29b and 29c is due to the tightening of the adhesive applied between them and the segment fixing bolt 33.
The shatterproof member 28 is provided with a bolt hole through which the shaft portion of the shoe fixing bolt 31 and the segment fixing bolt 33 passes.

Further, in this example, the tapered surface 27c is provided at the corner where the virtual boundary surface b of the outer surface of the guide shoe 26 is located. The tapered surface 27c diagonally connects the inner surface 29a and the inner surface 29b of the shatterproof member 28, and the inner surface 29a and the inner surface 29c.
On the other hand, as shown in FIG. 5C, the line of intersection (folding curve 29d) between the inner surface 29a and the inner surface 29b and the inner surface 29a and the inner surface 29c is located outside the tapered surface 27c.

According to the above configuration, when the guide shoe 26 is divided into a plurality of segments 26a, 26b, 26c by an excessive horizontal force, as shown by a broken line in FIG. 5C, the inner surface with the folding curve 29d as the rotation axis. 29b and the inner surface 29c open outward.
At this time, the plurality of segments 26a, 26b, 26c are fixed to the inner surfaces 29a, 29b, 29c of the shatterproof member 28, respectively. Therefore, even if the guide shoe 26 is divided into a plurality of segments 26a, 26b, 26c, it is fixed to the scattering prevention member 28 which is an integral part, and the fragments of the guide shoe 26 can be prevented from scattering and falling.

The shatterproof member 28 described above is not limited to a metal plate, and may be a plate material made of FRP or engineering plastic.
Further, the shatterproof member 28 and the segments 26a, 26b, 26c are preferably fixed by screw coupling, adhesion, or double-sided tape.

According to the above-described embodiment of the present invention, the guide shoe 26 is composed of a plurality of segments 26a, 26b, 26c separated from each other by an excessive horizontal force. Therefore, when an excessive horizontal force acts, the guide shoe 26 is predetermined. It is divided into a plurality of segments 26a, 26b, 26c.

Further, the shatterproof member 28 fixed to the outer surface of the guide shoe 26 is an integral part that can be deformed together with the plurality of segments 26a, 26b, 26c, and is fixed to the plurality of segments 26a, 26b, 26c, respectively. Therefore, even if the guide shoe 26 is divided into a plurality of segments 26a, 26b, 26c, it is fixed to the scattering prevention member 28 which is an integral part, and the fragments of the guide shoe 26 can be prevented from scattering and falling.

Even if the guide shoe 26 breaks at a position other than the planned position, the inner surfaces 29a, 29b, and 29c of the scattering prevention member 28 are fixed to the outer surface of the guide shoe 26 with an adhesive, so that the fragments of the guide shoe 26 are scattered. It is possible to significantly prevent the fall.

Further, even if the guide shoe 26 or the shatterproof member 28 is damaged or deformed due to an earthquake or the like, the entire sliding guide 24 can be easily and quickly replaced by attaching and detaching the guide mounting bracket 30, so that restoration can be performed in a short period of time. It is possible.

It should be noted that the present invention is not limited to the above-described embodiment, and it goes without saying that various modifications can be made without departing from the gist of the present invention.

b Virtual interface, c Recess, P pallet, K cage,
1 Elevator parking device, 2 Hanging rope (wire rope), 3 Cage,
4 elevating mechanism, 5 sheave drive device, 6 driven sheave, 7 drive sheave,
8 counterweight, 10 elevator type parking device, 11a, 11b lower end,
12A, 12B hanging rope (wire rope), 13 hoistways, 14 counterweights,
16 upper sheave, 18 elevating mechanism, 18a drum, 18b drum drive,
20 counterweight guide device, 22 guide rail, 23 guide surface,
23a outer plane, 23b end face, 24 sliding guide, 26 guide shoe,
26a, 26b, 26c segment, 27 sliding surface, 27a first sliding surface,
27b second sliding surface, 28 shatterproof member, 29a, 29b, 29c inner surface,
30 guide mounting bracket, 31 shoe fixing bolt, 32 guide fixing bolt,
33 segment fixing bolt

Claims (5)

A guide rail that extends continuously in the vertical direction along the hoistway and has a guide surface that prevents the counterweight from moving horizontally.
A sliding guide fixed to the counterweight and guiding the counterweight up and down along the guide rail is provided.
The sliding guide includes a guide shoe having a U-shaped sliding surface that faces the guide surface and extends in the vertical direction and surrounds the guide surface .
It has a shatterproof member fixed to the outer surface of the guide shoe.
The guide shoe is an integral part and is composed of a plurality of segments separated from each other by an excessive horizontal force acting on the counterweight.
The scattering prevention member is an integral part which can be deformed together with a plurality of the segments, and are fixed respectively to the plurality of segments,
The guide surface has two outer planes extending in the width direction of the counterweight and parallel to each other and end faces orthogonal to the outer planes.
The plurality of the segments consist of one first segment having a second sliding surface facing the end surface and a pair of second segments having a first sliding surface facing the outer plane.
The first segment is fixed to the counterweight with the shatterproof member on its outer surface sandwiched between them.
The widthwise inner end of the second segment is integrated with the first segment so that the excessive horizontal force in the thickness direction of the counterweight is transmitted to the second segment via the first segment. Are connected
The guide shoe is a counterweight guide device having a concave groove along a virtual boundary surface separated from each other by the excessive horizontal force at the inner end portion in the width direction . The shatterproof member is a plate material made of metal, FRP, or engineering plastic.
The counterweight guide device according to claim 1, wherein the shatterproof member and the segment are fixed to each other by screw coupling, adhesion, or double-sided tape. The counterweight guide device according to claim 1, wherein the guide rail is a rolled material or a welded structure having a T-shaped, L-shaped, or rectangular cross-sectional shape. The guide mounting bracket fixed to the counterweight and
A shoe fixing bolt for fixing the first segment to the guide mounting bracket is provided.
The counterweight guide device according to claim 1, wherein the shatterproof member has a bolt hole through which the shoe fixing bolt passes. The counterweight guide device according to claim 1, wherein the shatterproof member is a member obtained by bending a metal plate having a thickness of 0.5 to 2 mm into a U shape.

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