JPH08175779A - Door sill polishing device of elevator - Google Patents

Abstract

PURPOSE: To improve finishing quality standard by way of extensively saving labour and working time required for sill polishing work by improving working efficiency by mechanization and by devising it possible to evenly and uniformly polish a sill surface. CONSTITUTION: A sill polishing device is furnished with a grinder 2 having a grinding disc 2a, an erecting piece 4 and a support base 5 to support the grinder 2 by way of holding a specified positionand a guide shoe to guide movement of the grinder 2 by way of engaging it with a guide groove 1b of a sill 1 free to slide. Additionally, it is furnished with bolt nuts 7a, 7b for inclined angle change of the grinder 2 and bolt nuts 8a, 8b for installation position change of the guide shoe 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator sill polisher used for polishing a sill on the floor side where dirt and scratches are conspicuous when repairing an elevator.

[0002]

2. Description of the Related Art In modernizing an aging elevator, existing parts may be partially used instead of removing all new elevator-related parts and installing new ones. The existing products are often used as they are. However, in that case, since the sill of the newly removed car is new, when the car lands on the floor and the sill on the floor side is lined up with the sill on the floor side, the sill on the floor side is attached. The stains and scratches on the surface become very conspicuous, and the aesthetic appearance is significantly impaired.

Therefore, in the modernization method in which the sill on the floor side is left as described above, it is necessary to polish the sill for cleaning all the floor side sills of the elevator stop floor by polishing the upper surface (sill surface). Conventionally, such threshold polishing work has generally been performed using sandpaper having a grain size of about 100 to 200 or a hard sponge towel.

[0004]

However, the above-mentioned conventional sill polishing work involves removing dirt such as mud and oil film adhered firmly over a long period of time, and polishing and repairing large and small scratches.
Since all work is done manually, the work efficiency is poor and the physical burden is high, and the same work must be done for all floor-side sills of the elevator stop floor, which requires a great deal of labor and work time. There was a problem that required. Further, since the polishing work by hand is likely to cause unevenness on the polished surface, the quality level of the finish could not be so high.

The present invention has been made in view of the above problems of the prior art, and an object thereof is to significantly reduce the labor and working time required for the sill polishing work, and to improve the quality level of the finished product. It is to provide a polishing device.

[0006]

The above-mentioned object of the present invention is as a sill polisher for polishing a sill provided at an entrance of an elevator and having at least one guide groove.
Apparatus provided with a grinder having a flexible polishing disk capable of high-speed rotation, holding means for holding the grinder in a predetermined posture and supporting it, and guide means for guiding the movement of the grinder along the longitudinal direction of the guide groove. Is achieved by using.

It is preferable that the holding means includes a posture changing mechanism for changing the inclination angle of the grinder with respect to the upper surface of the threshold. Further, it is preferable that the guide means includes a guide shoe that engages with the guide groove and is slidable in the longitudinal direction of the guide groove, and further, the guide means determines the position of the guide shoe with respect to the grinder. It is preferable to include a mounting position changing mechanism that changes along the width direction of the guide groove.

[0008]

In the sill polishing apparatus having the above-described structure, the grinder can be set at a predetermined inclination angle with respect to the upper surface (sill surface) of the sill by the holding means provided with the attitude varying mechanism or the like. Can be brought into contact with the sill surface by the contact pressure, and the movement of the grinder along the longitudinal direction of the guide groove of the sill is guided by the guide means provided with a guide shoe or the like. It is possible to move linearly along the guide groove while maintaining the posture. Therefore, if such a sill polishing apparatus is used, the sill surface can be uniformly polished with the polishing disk, and the working efficiency is greatly improved by mechanization. Also, if the position of the guide shoe with respect to the grinder can be changed along the width direction of the guide groove of the sill, it is possible to accurately position the polishing disk directly above the portion to be polished on the sill surface. it can.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the threshold polishing apparatus according to the present invention will be described below with reference to FIGS. Here, FIG. 1 is a side view when the present embodiment is used, FIG. 2 is a front view when the same embodiment is used, and FIG. 3 is a plan view of the same embodiment with a grinder omitted.

The sill polisher shown in these figures is an existing sill 1 on the floor side when modernizing an elevator.
A grinder 2 having a flexible polishing disk 2a capable of high-speed rotation, and a holding member 3 for mounting and holding the grinder 2 in order to divert the sill surface 1a. , A pair of upright pieces 4 for attaching the bolts 7a and the nuts 7b and supporting the holding member 3 at a desired inclination angle, and the pair of upright pieces 4.
And a guide shoe 6 fixed to the lower surface of the support 5 by attaching a bolt 8a and a nut 8b. Here, the polishing disk 2
Reference numeral a denotes a disk-shaped polishing member composed of a plurality of cloth emery papers having blade surfaces stacked in a circular shape. Further, the support base 5 extends in the lateral direction thereof and the bolt 8a is placed at an arbitrary position. A long hole 5a that can be fitted into the hole is formed. The elevator sill 1 is provided with two guide grooves 1b extending in the longitudinal direction thereof.
The guide shoe 6 is slidably engaged with b.

When using the sill polishing apparatus having such a structure, first, the guide shoe 6 is inserted into the guide groove 1b of the sill 1 with the bolt 8a and the nut 8b slightly loosened, and the guide groove 1b is inserted. By moving the support base 5 in the width direction of 1b and appropriately moving the guide shoe 6 along the long hole 5a, the polishing disk 2a is aligned right above the portion of the sill surface 1a to be polished. . Then, after the alignment is completed, the guide shoe 6 fixed to the support base 5 by fastening the bolt 8a and the nut 8b is inserted into the guide groove 1b.
And mount the support base 5 on the threshold surface 1a. Then, the bolts 7a and the nuts 7b are loosened a little, and the inclination angle of the holding member 3 with respect to the standing piece 4, that is, the threshold surface 1a.
By adjusting the inclination angle of the grinder 2 with respect to, the polishing disk 2a is adjusted so as to contact the sill surface 1a with a desired contact pressure, and if it can be adjusted, the bolt 7a and the nut 7b are fastened to fix the inclination angle. Turn into. Thereafter, while the grinder 2 is operated to rotate the polishing disk 2a at a high speed, the grinder 2 is gradually moved along the longitudinal direction of the guide groove 1b at a substantially constant speed, so that the sill surface 1a is extended over the entire length. Polishing is performed with the polishing disk 2a to remove stains and polish and repair scratches.

As described above, according to this embodiment, since the grinder 2 can be set at a predetermined inclination angle with respect to the sill surface 1a, the polishing disk 2a can be brought into contact with the sill surface 1a at a desired contact pressure. Since the guide shoe 6 can guide the movement of the grinder 2 along the longitudinal direction of the guide groove 1b to prevent the meandering, the grinder 2 maintains a predetermined posture with respect to the sill surface 1a. It can be moved linearly along the guide groove 1b.
Therefore, if such a sill polishing apparatus is used, the sill surface 1a can be uniformly polished with the polishing disk 2a, and the working efficiency is greatly improved by mechanization.
Further, since the mounting position of the guide shoe 6 fixed to the lower surface of the support base 5 can be changed along the width direction of the guide groove 1b,
The polishing disc 2 is provided directly above the portion to be polished on the threshold surface 1a.
a can be accurately aligned. As a result, the labor and work time required for the polishing work can be significantly reduced, and the polishing surface (sill surface 1
The unevenness is less likely to occur in a), and the quality level of the finished product is improved.

[0013]

As described above, in the elevator sill polishing apparatus according to the present invention, the grinder having the abrasive disc is guided along the guide groove of the sill while keeping the grinder having a predetermined posture with respect to the upper surface (sill surface) of the sill. Since it can be moved linearly, the sill surface can be evenly polished and
The mechanization greatly improves the work efficiency, which significantly reduces the labor and the work time required for the sill polishing work, and improves the quality level of the finished product.

[Brief description of drawings]

FIG. 1 is a side view of an embodiment of a sill polisher according to the present invention in use.

FIG. 2 is a front view of the same embodiment when in use.

FIG. 3 is a plan view of the same embodiment with a grinder omitted.

[Explanation of symbols]

 1 Sill 1a Sill surface 1b Guide groove 2 Grinder 2a Polishing disk 3 Holding member 4 Standing piece 5 Support stand 5a Long hole 6 Guide shoe 7a, 8a Bolt 7b, 8b Nut

Claims (4)

[Claims] 1. An apparatus for polishing a sill provided at an entrance of an elevator, the sill having at least one guide groove, the grinder having a flexible polishing disk rotatable at a high speed, and the grinder in a predetermined posture. An elevator sill polisher comprising: holding means for holding and supporting; and guide means for guiding the movement of the grinder along the longitudinal direction of the guide groove. 2. The elevator sill polisher according to claim 1, wherein the holding means includes a posture changing mechanism that changes an inclination angle of the grinder with respect to an upper surface of the sill. 3. The elevator according to claim 1, wherein the guide means includes a guide shoe that engages with the guide groove and is slidable in the longitudinal direction of the guide groove. Sill polisher. 4. The apparatus according to claim 3, wherein the guide means includes an attachment position changing mechanism that changes a position of the guide shoe with respect to the grinder along a width direction of the guide groove. Elevator threshold polishing equipment.