JPS62120261A - Lifting guide rail device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention is useful for transferring a carrier from one of two guide rails of different heights to the other, or for transferring a carrier on a guide rail at a higher level. This invention relates to an elevating guide rail device used for elevating cargo to and from low-level loading/unloading work positions.

(Prior art and its problems) An elevating guide rail device used for the above purpose has a guide rail support member protruding from one side of an elevating body that is supported by a column so as to be able to rise and fall. A guide rail is supported on a rail support member, and when the elevating body stops at a predetermined stop position, the guide rail is configured to connect with a fixed side guide rail.

In such a lifting guide rail AM, the guide rail support member is raised at a position near the guide rail! ! The guide on the guide rail support member cantilevered from the elevating object cannot be suspended by the driving chain; in other words, the elevating object must be suspended by the elevating drive chain at a position near the support. The rail will fall slightly below the stop level of the elevating object due to the deflection of the guide rail supporting member and the inclination of the guide rail supporting member due to the play between the elevating guide rail on the column side and the elevating guide roller on the elevating object side. .

At the lower limit position, there is no problem because the guide rail support member can be stopped by the stopper on the fixed side directly below the guide rail, but at the hu limit position or intermediate stop position, the stopping position of the elevating body is Rather than setting it to match the level of the guide rail, it must be set so that the guide rail connects accurately with the fixed guide rail. However, as mentioned above, it is not possible to correct the cracks in the guide rail itself due to the cracks in the guide rail support member, so there is a risk that a step may occur between the guide rail and the guide rail on the fixed side.

(Means for Solving the Problems) The present invention proposes an elevating guide rail device that can solve the conventional problems as described above, and its features are as follows:
When the elevating body is at the upper limit position or intermediate stop position,
A movable push-up support means for supporting the guide rail support member by slightly pushing it up at a position near the guide rail is disposed on the side of the lifting path, and when the guide rail support member is supported by the push-up support means, the guide rail is connected to the fixed side guy 1 rule.

(Example) An example of the present invention will be described below based on the attached illustrative drawings.

In FIGS. 1 and 2, reference numeral 1 denotes a pair of left and right vertical columns, each of which is provided with a lifting guide 1/2. Reference numeral 3 denotes a pair of left and right elevating bodies that are supported by both vertical branches 1 so as to be movable up and down, and are connected and integrated with each other by a guide rail support member 4 arranged on one side of the support column 1. #6, on which a guide rail 5 is supported on the member 4, is a hanging chino that drives the elevating body 3 up and down, and a drive gear wheel is pivotally supported on a pedestal 7 installed between the upper ends of the pillars 1. 8 is connected to an engagement L7, and the other end is connected to a counterweight that moves up and down within the support column 1.

Reference numeral 9 denotes a motor that drives the drive gear 8 in any forward or reverse direction. Reference numeral 10 denotes an upper limit stopper for regulating the upper limit position of the elevating body 3, and is attached to a frame 11 connected downward from the pedestal 7 so that its height can be adjusted.

At both ends of the guide rail support member 4 in the guide rail length direction, horizontal shaft rollers 12a for steady rest in the left and right direction (guide rail length direction) are provided, as shown in FIGS. 3 and 4.
, 12b and a horizontal shaft roller 13a for steadying in the longitudinal direction.
, 13b, and the supported horizontal shaft roller 14 are each pivotally supported.

A fixed frame 15 is installed outside the upper end of the lifting path of the guide rail support member 4, and a vertical steady rest guide of an appropriate length is provided on the fixed frame 15 and is close to each of the horizontal shaft rollers 12a to +3b for steady rest. A push-up support means 17 is provided for pushing up the guide rail support member 4 at a position near the guide rail 5 via the rail 16 and the supported horizontal axis roller 14.

111. As shown in FIG. 5, the push-up support means 17 includes an inclined guide surface 21a and an inclined guide surface 21a on the upper side of the tip of the movable base 20, which is supported by a pair of guide rails 18 via a guide roller 19 so as to be movable in the horizontal direction. A cylinder unit 22 that forms a horizontal support surface 21b following this and moves in and out of the movable table 20 is also provided.

In FIGS. 1 and 2, reference numeral 23 denotes a fixed guide rail that connects with the guide rail 5 at the upper limit position. Fourth
In the figure, reference numerals 24a to 24d refer to guide rollers for longitudinal steadying that are pivotally supported by the elevating body 3, and by sandwiching the elevating guide rail 2 of the column 1 from the front and back, the elevating body 3 and the guide rail support member 4 are Regulate posture. In addition, as shown in FIG. 3, the elevating body 3 is pivotally supported by a guide roller 25 for stopping the movement of the elevating member 3 from left and right, which abuts on the elevating guide rail 2 from the left and right.

When connecting the lifting guide rail 5 to the fixed side guide rail at a low level 1 or from the loading/unloading work position to the fixed side guide rail 23 at a high level, the motor 9 rotates the driving gear 8 to drive the lifting and lowering. The lifting body 3 is raised along the lifting guide rail 2 of the support column 1 by the hanging chainer 6. As the lifting body 3 rises, the guide rail support member 4 and the guide rail 5 are moved up 4. However, the horizontal shaft rollers 12a to 13b for steady rest at both ends of the stop guide rail support member that reach the vicinity of the upper area enter the inside of the guide rail 16 for steady rest on the fixed frame 15 side, and the above-mentioned each Roller 123~+3
By closely relocating the member b, the front, rear, left and right positions of both ends of the guide 1 and the support member 4 are regulated. In this state, the elevating body 3
When it reaches the upper limit position and comes into contact with the upper limit stopper 10t, the motor 9 stops rotating the drive gear 8 and applies a brake to lock the drive gear 8.

As a result, the end of the elevating guide rail 5 faces the end of the fixed guide rail 23. In this state, the movable platform 20 of the push-up support means 17 is advanced by the cylinder unit 22, and as shown in FIG. As shown in FIG. 5, the tip inclined guide surface 2 of the movable base 20? a scoops up the supported horizontal axis rollers 14 at both ends of the guide rail support member and pushes the rollers 14 up to the horizontal support surface 21b.

That is, the position of the guide rail support member 4 near the guide rail 5 is pushed by a slight amount via the supported horizontal shaft roller 14.
- Geru.

When the lowering body 3 is lowered, the rollers 24a and 24 in FIG.
d are in contact with each other, and there is a slight gap between the rollers 24b, 24C and the elevating guide rail 2. As described above, both ends of the guide rail support member 4 are pushed up by the support means 17.
When the roller 24 is pushed down by a slight amount,
b. Due to the existence of a play between 24C and the lifting guide rail 2, the guide rail support member 4 can move.By pushing both ends of the guide rail support member 4, the guide rail support member 4 is moved. The guide 1 is completely horizontal in the direction (front-back direction) perpendicular to the length direction of the knoll 5, and is connected to the fixed guide rail 23 without any step. In other words, the installation heights of the upper limit stopper 10 and the push-down support means 17 are adjusted so that such a result can be obtained. Once the lifting guide rail 5 is connected to the fixed guide rail 23, the carriage can be moved between the two guide rails 5.23.

Incidentally, the elevating guide rail 5 can also be connected to a fixed side guide rail having an intermediate height. In this case, when a stopper for regulating the lifting stop position of the elevating body 3 is also used, the stopper must be constructed so as to be able to move in and out of the elevating path. Of course, it is also possible to carry out the process without using such a stopper.

(Operations and effects of the invention) As described above, according to the elevating guide rail device of the present invention,
After stopping the elevating object at a predetermined value 1, the push-up support means is activated to push up the guide rail support member, which is cantilevered from the elevating object, by a slight amount near the guide rail, thereby providing a guide for the elevating object. The deflection and inclination of the rail support member can be corrected, and the guide rail supported on the guide rail support member can be completely connected to the fixed side guide rail without creating a step difference. Transport vehicles can be transferred safely and smoothly between rails.

[Brief explanation of drawings]

Figure 1 is a front view of the main part, Figure 2 is a side view of the main part, Figure 3 is an enlarged cross-sectional plan view of the main part, Figure 4 is a longitudinal side view of the same, and Figure 5 is a side view of the main part.
The figure is a side view of the push-up support means.

Claims (1)

[Claims] A guide rail support member is provided to protrude to one side from an elevating body that is movably supported by a column, and the guide rail is supported on the guide rail support member, and the elevating body is at a rising limit position or an intermediate stop position. When the guide rail support member is slightly pushed up and supported at a position in the vicinity of the guide rail, a push-up support means that can be freely extended and withdrawn is disposed beside the ascending and descending path;
In the state supported by this push-up support means,
An elevating guide rail device in which the guide rail is connected to a fixed side guide rail.