JP3165974B2 - Counterweight device for elevator-type multilevel parking system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a counterweight device in an elevator-type multi-story parking device which can be suitably used for an elevator for transporting a vehicle.

[0002]

2. Description of the Related Art An elevator-type multi-story parking device has become widespread.

In this structure, multi-stage parking spaces S, S... Are provided in a parking structure A which is built high on the ground (FIG. 5).
A hoistway P on which the elevator E moves up and down is installed at the center. The elevator E is moved up and down by a drive motor M on the upper side via chains C, C to distribute a vehicle B loaded on the first floor to a parking space S on an arbitrary floor, and a vehicle B on an arbitrary floor. Can be transported to the first floor. A counter weight W is connected to the other ends of the chains C via the drive motor M.

The counterweight W is formed by stacking small weight members in multiple layers to adjust the total weight.
Move up and down along a pair of guide rails G provided on both sides of the guide rail. That is, the guide weights R, R,... On both sides of the counter weight W roll by contacting the guide rails G, G, and can move up and down smoothly.

[0005]

According to the prior art, since the counterweight W is suspended by the chains C, C, the elongation of the chains C, C is increased by long-term use, and the chain C, , C, the counter weight W is changed to the guide rails G, G
There is a problem that it may be difficult to move up and down smoothly along the road. That is, if there is a difference between the lengths of the chains C, C, the counterweight W is lifted only by the shorter one of the chains C, so that the guide rollers R, R.
It may cause squeaking or severe wear.

SUMMARY OF THE INVENTION In view of the above-mentioned problems in the prior art, an object of the present invention is to absorb a difference in elongation of a suspension member by swinging a weight body via a balance arm and a suspension member. Another object of the present invention is to provide a counterweight device in an elevator-type multi-story parking device capable of smoothly moving a counterweight up and down.

[0007]

In order to achieve the above object, the present invention provides a weight body, a guide roller disposed on the left and right side surfaces of the weight body, and engaged with the guide roller to move the weight body up and down. It consists of left and right guide rails, and a balance arm that suspends the weight body via a pair of suspension members connected to both ends, and the balance arm is connected to the weight body via a central connection pin, The gist of the invention is to swing up and down both ends to absorb a difference in elongation of the suspension member.

The weight main body accommodates a large number of rectangular weight members in a frame member, and the frame member connects the upper frame and the lower frame via left and right inward channel outer frames. Preferably, the frame member is provided with a pair of inner frames of the channel material opposed to the respective outer frames, and the weight member can be divided into two rows on the left and right sides and stored in the frame member.

[0009]

According to the structure of the present invention, the weight body can be moved up and down along the guide rail together with the balance arm by driving the pair of suspension members connected to both ends of the balance arm up and down. it can.
At this time, since the balance arm supports the entire weight of the weight body and hangs the weight body swingably through the center connecting pin, the length of the hanging member is increased by the extension of the hanging member. Even if a difference occurs, both ends swing upward and downward in response to the difference, and the entire weight of the weight body can be evenly distributed to both suspension members.
The weight main body can be moved quietly and smoothly by the guide roller engaging with the guide rail and being correctly guided in the vertical direction.

[0010] The frame member provided with the outer frame of the left and right inward channel material, by storing the end of the rectangular weight member in the outer frame, the weight member is vertically stacked and stably stored and held. be able to.

If the frame member is provided with the inner frame, the weight members in each row can be stored at both ends in the outer frame and the inner frame, and the unit weight of the weight member can be reduced to facilitate handling. .

[0012]

Embodiments will be described below with reference to the drawings.

The counterweight device in the elevator-type multi-story parking device includes a weight body 11, a balance arm 12, and guide rollers 13, 13,.
And left and right guide rails 20, 20 (FIG. 1).

The weight main body 11 accommodates and holds a large number of weight members 11a, 11a,... In a frame member formed by assembling a shape steel. The frame member includes an upper frame 11b of the I-shaped steel and a lower frame 11 of the downward channel material via left and right inward channel material outer frames 11c, 11c.
e, 11e. In addition, between the upper frame 11b and the lower frames 11e, 11e, inner frames 11d, 11d of a pair of channel materials facing the outer frames 11c, 11c are provided. Further, reinforcing members 11b1, 11b1,... Are attached to the upper frame 11b.

Between the outer frame 11c and the inner frame 11d, rectangular weight members 11a, 11a,. That is, the weight member 11a,
11a are the outer frame 11c at both ends and the inner frame 1
By storing it in 1d, it is stored in two separate rows on the left and right with respect to the frame member.

The balance arm 12 includes an upper frame 11b.
By forming the lower side obliquely upward to the left and right, both ends are formed in a tapered inverted triangular shape. The balance arm 12 includes the weight body 11
It is swingably connected to the upper portion of the weight main body 11 via brackets 11f, 11f on the upper frame 11b and connecting pins 11f2. That is, the balance arm 12
Inserts the central part between the brackets 11f, 11f,
The common connection pin 11f2 is inserted through the connection holes 11f1 and 11f1 of the center connection hole 12a and the brackets 11f and 11f, and is arranged in the same direction as the upper frame 11b.

At both ends of the balance arm 12, a pair of suspension members 31, 31 made of a chain
b, 12b. Suspension members 31, 3
Numeral 1 is connected to an elevator for transporting the vehicle via a lifting device (not shown), and the weight main body 11 can move up and down together with the balance arm 12 via the suspension members 31, 31.

Guide rollers 13, 13,..., 14, 14,... Are arranged on the left and right side surfaces of the weight body 11 (FIGS. 1, 3). Guide rollers 13, 13 ..., 14, 1
4 are the left and right guide rails 20 of the weight body 11,
20 is engaged.

Are mounted on upper and lower ends of side frames 13a, 13a parallel to the outer frames 11c, 11c of the weight body 11, and the guide rollers 14, 14,. A pair is attached to each of the upper end and the lower end. The side frames 13a, 13a are each formed of an inward channel material, and
1c is mounted via mounting plates 13a2, 13a2.

Each guide roller 13 has a bearing 13c.
(FIG. 3) and is fixed to the side frame 13a via a shaft 13b. A part of the outer periphery of the guide roller 13 projects toward the guide rail 20 through a roller window 13a1 which cuts out the side frame 13a. The pair of guide rollers 14 is mounted on the outer surface of the side frame 13 a facing the guide rail 20 near the guide roller 13.

Each guide rail 20 is formed by combining a rail member 21 made of an angle material and a base member 22 via a connecting bolt and nut 23. The guide rail 20 is a plate-like rib 21 formed of a part of the rail member 21.
a is arranged so as to face the side frame 13a of the weight body 11. Each of the guide rollers 13 rolls by contacting the leading edge of the rib 21a of the opposing guide rail 20 to form a pair of guide rollers 14, 14.
Rolls in contact with each other so as to sandwich the rib 21a from both sides.

The suspension member 3 is moved by a lifting device (not shown).
When the weights 1 and 31 are driven up and down, the weight body 11 moves up and down together with the balance arm 12. The weight body 11 is vertically guided via the guide rails 20, 20 and the guide rollers 13, 13,..., 14, 14,.

The balance arm 12 has a connecting pin 11f2
Supports the entire weight of the weight main body 11 at one point, and is divided into two suspension members 31 at both ends. Furthermore, since the balance arm 12 swings up and down with respect to the weight main body 11, it has an inverted triangular shape corresponding to the linear shape of the upper frame 11b of the weight main body 11.

The weight main body 11 includes suspension members 31, 31.
Even if the elongation occurs, it can be smoothly moved up and down without being affected by the elongation. For example, it is assumed that the left suspension member 31 is longer than the right suspension member 31 due to the extension of the suspension members 31 (FIG. 1). At this time, in the balance arm 12, the short suspension member 31 on the right side is tilted upward (two-dot chain line in the figure) and the other side is tilted downward according to the difference in the length of the suspension members 31, 31. Therefore, the weight main body 11 supported by the balance arm 12 at one point is not evenly biased toward the shorter suspension member 31, and the weight is equally distributed to both suspension members 31, 31.

In this way, the balance arm 12
The suspension member 3 swings up and down with respect to the weight body 11.
The weight body 11 can smoothly move up and down without squeezing, by absorbing the difference in elongation between the weights 1 and 31. In addition,
The quiet movement of the weight body 11 is an important advantage in night driving. When the weight body 11 moves up and down, each guide roller 13 prevents the weight body 11 from swinging left and right due to contact with the rib 21a (FIG. 3), and the guide rollers 14, 14 sandwich the rib 21a. In addition, the weight body 11 can be prevented from swinging back and forth.

Guide rollers 13, 13,..., 14, 14,.
Can be replaced with only the grooved guide rollers 13, 13 (FIG. 4). Each guide roller 13 has a groove 13 d having a concave cross section on the outer peripheral surface, and is engaged with the rib 21 a of the guide rail 20. Since the guide roller 13 has the functions of the guide rollers 14 and 14, the number of components is reduced and the overall structure can be simplified.

In the above description, the suspending members 31, 31 for suspending the weight main body 11 may be a string, such as a wire rope, in addition to a chain.

[0028]

As described above, according to the present invention, the balance arm is moved up and down by swinging the weight body via a pair of suspension members connected to both ends of the balance arm. Therefore, the extension of the suspension member can be absorbed to effectively prevent the creaking and abrasion of the guide roller, and the weight body can always be moved up and down smoothly.

[Brief description of the drawings]

FIG. 1 is a partially broken front view.

FIG. 2 is an enlarged exploded perspective view of a main part.

FIG. 3 is an enlarged sectional view taken along line XX of FIG. 1;

FIG. 4 is a diagram corresponding to FIG. 3, showing another embodiment.

FIG. 5 is an overall schematic explanatory view showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 ... Weight body 11a ... Weight member 11b ... Upper frame 11c ... Outer frame 11d ... Inner frame 11e ... Lower frame 12 ... Balance arm 13, 14 ... Guide roller 20 ... Guide rail 31 ... Suspension member

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B66B 1/00-19/06 E04H 6/18

Claims (3)

(57) [Claims] 1. A weight body, guide rollers disposed on left and right side surfaces of the weight body, left and right guide rails which engage with the guide rollers and guide the weight body up and down, and a pair of ends connected to both ends. And a balance arm that suspends the weight body via a suspending member of
The balance arm is connected to the weight main body through a center connecting pin, and swings both ends up and down to absorb a difference in extension of the suspension member. Counterweight device. 2. The weight body stores a large number of rectangular weight members in a frame member, and the frame member connects the upper frame and the lower frame via left and right inward channel material outer frames. The counterweight device in an elevator-type multi-story parking device according to claim 1, wherein: 3. The frame member is provided with a pair of inner frames of a channel material facing the respective outer frames, and the weight member is divided into two rows on the left and right sides and stored in the frame member. The counterweight device in the elevator type multi-story parking device according to claim 2.