JP2573854Y2 - Construction elevator - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a construction elevator, and more specifically, a lifting frame of a transporter guided by a guide rail of a tower, a guide roller of which is always in correct contact with a guide surface of the guide rail and smoothly. The invention relates to a construction elevator that can be moved to a building.

[0002]

2. Description of the Related Art Conventionally, a construction elevator used to construct a building is provided along a guide rail provided with a tower which is erected by a support from a skeleton of the building.
A type that raises and lowers a lifting platform or cage (hereinafter referred to as a transporter) is widely used. Such a construction elevator is generally provided with a guide attached to an elevator frame of a transporter with respect to a guide rail, as is known, for example, from Japanese Utility Model Publication No. Sho 56-10779 or Japanese Unexamined Patent Publication No. 2-75590. Rollers are disposed at each of the upper and lower ends of the lifting frame, one guide roller for each of the right and left sides for guiding in the front-rear direction, and one guide roller for each of the left and right sides for receiving the load in the horizontal direction. It is provided to be able to move up and down. However, in addition to such a configuration, there is also known a type in which a guide roller is applied and guided and supported so as to sandwich the guide rail from the front-rear direction.

[0003]

As described above, in a conventional construction elevator, the lifting and lowering drive means of the transporter is driven by a driving method such as a method using a hanging cable or a method of meshing a rack and pinion. Are different, the arrangement correspondence of the transporter-side guide rollers with respect to the guide rails is almost unchanged. However, construction elevators, in other words, temporary elevators, are different from those provided as permanent equipment like permanent elevators because they have a short service period in one place and are not installed with high accuracy. Alternatively, since the elevating speed is much lower than that of the main elevator, it is difficult to combine the guide rollers of the transporter with the guide rails in a highly accurate state. It has such a rough configuration.

[0004] Therefore, in the conventional construction elevator, if the lifting speed of the carrier is to be increased, the contact state between the guide rails and the guide rollers becomes unstable. In other words, all the guide rollers are always in contact with the guide rails. Cannot be reliably brought into contact with the guide surface, and as a result, the guide of the transporter by the guide rail lacks smoothness. In particular, due to the load on which the guide rollers contacting the guide rails in the front-rear direction at the upper and lower ends of the lifting frame are mounted on the transporter, in principle, the upper guide rollers are moved to the front inner guide surface of the groove-shaped guide rail. , And the lower guide roller is in contact with the guide surface inside the rear of the guide rail, so that the carrier is entirely tilted forward and lowered. Therefore, when ascending the carriage with the load applied thereto, the guide rollers are rolled in contact with the guide surfaces of the guide rails, so that the normal speed during the ascent is about 10 to 15 m / min. When raised, the guide rollers are always in contact with the guide surface and are almost stable. However, when the lowering speed is increased when lowering the transporter, the acceleration of gravity acts to make the contact between the guide roller and the guide rail guide surface unstable.

However, in recent years, with the promotion of rationalization of construction work, it has been demanded to increase the elevating speed of construction elevators. Is always in contact with
It was necessary to be able to move up and down smoothly.

An object of the present invention is to solve such a problem and to propose a construction elevator having an improved guide mechanism so that a carrier can be raised and lowered smoothly at a higher speed than before.

[0007]

In order to achieve the above object, a construction elevator according to the present invention is guided by a guide rail attached to a side of a tower erected at a required height, and a front side of the tower. In the construction elevator for raising and lowering the transport device along the road, the lift frame of the transport device is provided with a pair of guide rollers and a pair of guide rollers in the width direction at the upper and lower sides on both right and left sides. A roller support that is unitized and fixed symmetrically with a roller mounting bracket and supports the guide roller in the front-rear direction is provided such that an intermediate position is pin-supported by a support piece of the guide roller mounting bracket, And the guide roller in the front-rear direction is aligned with the axis on a straight line passing through the center of the support pin of the roller support, and is brought into contact with the guide surface of the guide rail. The guide roller in the width direction is supported by a bracket protruding from the mounting seat plate of the guide roller mounting bracket and attached to the guide rail so as to be adjustable in and out of the guide rail. .

[0008]

In the construction elevator according to the present invention, two sets of guide rollers are provided at the upper and lower ends of the lifting frame, one set for the front-rear direction of the carrier and one set for the width direction. Each is provided symmetrically,
Since the guide rollers of each set are collectively attached to the guide roller mounting bracket provided with the lifting frame, the guide rollers are assembled while maintaining the positional relationship of the guide rollers correctly, and the workability in manufacturing as an elevator for high-speed operation is improved. . Further, a roller support for supporting the guide roller in the front-rear direction is provided so that an intermediate position is supported by a pin on a support piece of the guide roller mounting bracket, and the guide roller in the front-rear direction has an axis center of the roller. Since it is arranged so as to be aligned on a straight line passing through the center of the support pin of the support tool and abut on the guide surface of the guide rail, when loading and unloading luggage and the like on the carrier, the lifting frame is moved by the load. Even in the forwardly inclined position, the roller support simply rotates and displaces at the support piece and the support pin position on the lifting frame side, and the guide rollers arranged vertically with respect to the support pin are on the guide surface of the guide rail. You will always be in contact with and guided. Therefore, even if the lifting speed is increased, the lifting and lowering of the transporter is performed smoothly.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a construction elevator according to the present invention. FIG. 1 is a front view of an embodiment of a construction elevator according to the present invention, in which a part of a transporter is omitted, and FIG. 2 is a side view of the transporter. The elevator carrier 1 shown in these figures
2 and the rack / pinion meshing drive system, the only difference is in the drive type of the elevator, and the positional relationship between the lift frame 10 and the guide rail 5 attached to the tower 3 There is no change.

The elevating frame 10 of the transporter 1 has two guide rollers 25, 25 'for guiding the elevating frame 10 in the front-rear direction at the upper end and the lower end on both sides thereof.
And one guide roller 26 for guiding in the width direction.
Are provided as a set by a mounting bracket 20.
The guide rollers 25, 25 'and the guide roller 26 in the lateral width direction are arranged vertically symmetrically as shown in FIG.

Guide roller 2 by the mounting bracket 20
As shown in FIG. 3 and FIG. 4, the support pieces 22 project from the mounting seat plate 21 attached to the side surface of the lift frame 10, as shown in FIGS. Support pin 2 in the middle
Guide rollers 25, 25 'guided in the front-rear direction are rotatably mounted on both ends of the roller support 27 supported by the support member 4 so that the center of the support pin 24 is located on a line connecting their axes. Have been. Further, as shown in FIG. 4, the guide roller 26 in the lateral width direction is attached to the bracket 23 protruding from the mounting seat plate 21 as shown in FIG.
It is attached to the web of the guide rail 5 via a support leg 28 which can be adjusted at right angles to the web of the guide rail 5 at a position appropriately distant from the guide roller 25. Note that reference numeral 1 in FIG.
1 is a carrier bed, 12 is a handrail, 13 is a hanging pulley, 1
Reference numeral 5 denotes a safety device using a link mechanism.

According to the elevator of the present invention configured as described above, the guide rollers 25 and 25 ′ provided on both sides of the lifting frame 10 when the carrier 1 is moved up and down by the suspension cable 2 are used to move the guide rail 5. It is guided by the inner surfaces of the flange portions 5 'and 5 ", and the upper side is tilted forward by the load on the loading platform 11 provided on the front side of the lifting frame 10, while the lower side is displaced in the opposite direction. Upper guide roller 25, 25 '
Is in contact with the inner surface of the front flange 5 'of the guide rail 5,
The lower guide rollers 25, 25 'are guided in contact with the inner surface of the rear flange portion 5 "of the guide rail 5. Both pins are supported by a pin 24 at an intermediate portion of a roller support 27, as shown in the figure. In both cases, the two guide rollers 25, 25 'come into contact with the guide surfaces and are guided up and down, so that they can move in a more stable state than a single guide roller type.

[0013] The lifting speed of the transporter 1 is made faster than before,
Or, even if the action state of the load on the carrier 1 changes,
At each of the upper and lower ends of the lifting frame 10, each set of guide rollers 25, 25 ′ is formed by each roller support 27 supporting them as described above.
Since the intermediate portion is supported by the support piece 22 and the support pin 24 attached to the elevating frame 10 side on the line connecting the axis of 5 ′, the roller support 27 can be rotated. The guide rollers 25, 25 'are always moved by the front and rear flanges 5', 5 '
The guide frame 5 "is guided in contact with the guide surface of 5". Therefore, the smoothness when the lifting frame 10 is guided by the guide rail 5 at the time of lifting and lowering is not impaired.

Further, the guide roller 26 in the width direction and the guide rollers 25 and 25 'in the front-rear direction are connected to one mounting seat plate 2.
1 is attached to the elevating frame 10 by the guide roller mounting bracket 20 unitized by the support piece 22 and the bracket 23 attached to the bracket 1. Therefore, the guide roller mounting bracket 20 is symmetrically arranged vertically and horizontally. By preparing and assembling with the lifting frame 10, all the positional relations of the guide rollers can be set to predetermined conditions at the time of manufacturing, and operations such as assembly and disassembly can be easily performed.

[0015]

[Effects of the Invention] Since the construction elevator according to the invention is configured as described above, the guide rollers disposed at both upper and lower ends of the lifting frame are always used as guides when the transporter moves up and down along the guide rails. The guide roller is moved in contact with the rail, and particularly, even if the guide roller in the front-rear direction takes a forwardly inclined posture due to the load on the elevating frame, the roller is reliably brought into contact with the guide surface and rolled, so that the ascent and descent can be performed smoothly. In addition, since the guide rollers of each part are unitized, the operation of assembly and disassembly is easy as well as the production, and the setting of the contact state between each guide roller and the guide rail at the time of assembly is easy. Even with a machine, more accurate guidance can be performed, and the effect of enabling high-speed operation can be obtained.

[Brief description of the drawings]

FIG. 1 is a front view of an embodiment of a construction elevator according to the present invention, in which a part of a transporter is omitted.

FIG. 2 is a side view of a transporter portion.

FIG. 3 is a diagram illustrating a mounting portion of a guide roller which is a main part.

FIG. 4 is an IV-IV view of FIG. 3;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Carrier 2 Hanging cable 3 Tower 5 Guide rail 5 ', 5 "Flange part of guide rail 10 Elevating frame 11 Carrier bed 20 Guide roller mounting bracket 21 Mounting seat plate 22 Supporting piece 23 Bracket 24 Pin 25, 25', 26 Guide roller 27 Roller support tool 28 Support leg

Claims (1)

(57) [Scope of request for utility model registration] 1. A guide rail attached to a side of a tower erected at a required height guides the vehicle along a front side of the tower.
In a construction elevator for raising and lowering a carrier , the lifting frame of the carrier has vertical
Guide roller and width direction as a set of two in the front and rear direction
Guide roller mounting bracket as one set of guide rollers
Are unitized by being fixed symmetrically roller support for supporting the front-rear direction of the <br/> guide roller, the intermediate position is provided so as to be a pin supported by the support pieces of the guide roller mounting bracket and wherein the longitudinal direction of the guide rollers, so as to contact the guide surface of the guide rail engagement <br/> allowed Itasa the axial in a straight line passing through the support pin center of the roller support
And the guide roller in the width direction is the guide roller.
Bracket protruding from the mounting plate of the mounting bracket and attached
The guide rail supports the guide rail and adjusts
An elevator for construction, wherein the elevator is provided as possible.