US 6,098,756 AGranted

Guide rail lubricating device for elevator, and case and oil-retaining member for the lubricating device

AssigneesHitachi Building Systems Co., Ltd., Nanshin Kiko Co., Ltd.

InventorsNobumichi Shigetomi, Masaki Nakano, Tomoharu Onishi, Tokiji Tamaru, Shigeyuki Sato, Atsushi Hotta

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Abstract

In each of oil-retaining sheets, an end edge and side edges of a recess are separated from each other. The side edges are formed into tongue portions covered by first anti-wear meshes which prevent loosing of the side edges, and these tongue portions are maintained in sliding contact with their corresponding side walls of a guide portion of a guide rail. The end edge is covered by a second anti-wear mesh which prevents loosing of the end edge, and the second anti-wear mesh is maintained in sliding contact with an end wall of the guide portion. A gap is also formed to maintain the tongue portions and the second anti-wear mesh out of contact with each other.

Claims25

Dependent claims

A guide rail lubricating device for an elevator, said device being provided at least with:

a bottomed case for being mounted on an ascending/descending unit operably ascendable and descendable within a shaft, said bottomed case having a recess through which a guide portion of a guide rail is extendible,
an oil-retaining member accommodated within said case, and composed of plural oil-retaining sheets having oil absorbing property and oil retaining property, stacked one over the other and having recesses formed in at least one sides thereof to allow said guide portion to extend therethrough, and
a lid having a recess, through which said guide portion is extendible, and generally covering a top opening of said case,
whereby lubricating oil with which said oil-retaining sheets are impregnated is supplied to said guide portion from said recesses of said oil-retaining sheets,
wherein:
side edges and an end edge of said recess in each of said oil-retaining sheets are separated from each other;
said side edges are formed in tongue portions covered by first wear-resistant meshes, which serve to prevent loosing of said side edges, such that said tongue portions can be maintained in sliding contact with side walls of said guide portion;
said end edge of said recess in said oil-retaining sheet is covered by a second wear-resistant mesh, which serves to prevent loosing of said end edge, such that said second wear-resistant mesh can be maintained in sliding contact with an end wall of said guide portion;
and
gaps are formed between said side edges and said end edge, respectively, such that said tongue portions and said second wear-resistant mesh can be maintained out of contact with each other.

7 more elements

A guide rail lubricating device for an elevator, said device being provided at least with:

a bottomed case for being mounted on an ascending/descending unit operably ascendable and descendable within a shaft, said bottomed case having a recess through which a guide portion of a guide rail is extendible,
an oil-retaining member accommodated within said case, and composed of plural oil-retaining sheets having oil absorbing property and oil retaining property, stacked one over the other and having recesses formed in at least one sides thereof to allow said guide portion to extend therethrough, and
a lid having a recess, through which said guide portion is extendible, and generally covering a top opening of said case,
whereby lubricating oil with which said oil-retaining sheets are impregnated is supplied to said guide portion from said recesses of said oil-retaining sheets,
wherein:
side edges and an end edge of said recess in each of said oil-retaining sheets are separated from each other;
said side edges are formed in tongue portions covered by first wear-resistant meshes, which serve to prevent loosing of said side edges, such that said tongue portions can be maintained in sliding contact with side walls of said guide portion;
said end edge of said recess in said oil-retaining sheet is covered by a second wear-resistant mesh, which serves to prevent loosing of said end edge, such that said second wear-resistant mesh can be maintained in sliding contact with an end wall of said guide portion;
and
said first wear-resistant meshes and said second wear-resistant mesh are made of nylon fibers having a 140-denier diameter and are formed in knitted structures of approximately 1 mm in thickness.

7 more elements

A guide rail lubricating device for an elevator, said device being provided at least with:

a bottomed case for being mounted on an ascending/descending unit operably ascendable and descendable within a shaft, said bottomed case having a recess through which a guide portion of a guide rail is extendible,
an oil-retaining member accommodated within said case, and composed of plural oil-retaining sheets having oil absorbing property and oil retaining property, stacked one over the other and having recesses formed in at least one sides thereof to allow said guide portion to extend therethrough, and
a lid having a recess, through which said guide portion is extendible, and generally covering a top opening of said case,
whereby lubricating oil with which said oil-retaining sheets are impregnated is supplied to said guide portion from said recesses of said oil-retaining sheets,
wherein:
said plural oil-retaining sheets comprise:
contact oil-retaining sheets, in which:
recesses, through which said guide portion extends, are formed with dimensions set smaller than contour dimensions of said guide portion,
side edges and an end edge of said recess in each of said contact oil-retaining sheets are separated from each other,
said side edges are formed in tongue portions covered by first wear-resistant meshes, which serve to prevent loosing of said side edges, such that said tongue portions can be maintained in sliding contact with side walls of said guide portion, and
said end edge of said recess is covered by a second wear-resistant mesh, which serves to prevent loosing of said end edge, such that said second wear-resistant mesh can be maintained in sliding contact with an end wall of said guide portion, and
non-contact oil-retaining sheets, in which:
recesses, through which said guide portion extends, are formed with dimensions set greater than contour dimensions of said guide portion such that side edges and an end edge of each of said recesses can be maintained out of contact with said guide portion;
said contact oil-retaining sheets and said non-contact oil-retaining sheets are alternately stacked one over the other into said oil-retaining member;
and
each of said contact oil-retaining sheets has gaps formed between said tongue portions thereof and said second wear-resistant mesh associated therewith, respectively, such that said tongue portions and said second wear-resistant mesh can be maintained out of contact with each other.

13 more elements

An oil-retaining member for a guide rail lubricating device for an elevator, comprising:

contact oil-retaining sheets, in which:
recesses, through which a guide portion extends, are formed with dimensions set smaller than contour dimensions of said guide portion,
side edges and an end edge of said recess in each of said contact oil-retaining sheets are separated from each other,
said side edges are formed in tongue portions covered by first wear-resistant meshes, which serve to prevent loosing of said side edges, such that said tongue portions can be maintained in sliding contact with side walls of said guide portion, and
said end edge of said recess is covered by a second wear-resistant mesh, which serves to prevent loosing of said end edge, such that said second wear-resistant mesh can be maintained in sliding contact with an end wall of said guide portion, and
non-contact oil-retaining sheets, in which:
recesses, through which said guide portion extends, are formed with dimensions set greater than contour dimensions of said guide portion such that side edges and an end edge of each of said recesses can be maintained out of contact with said guide portion;
wherein
said contact oil-retaining sheets and said non-contact oil-retaining sheets are alternately stacked one over the other such that one of said non-contact oil-retaining sheets is arranged in a top part within said case and one of said contact oil-retaining sheets is arranged in a bottom part within said case;
all of said contact oil-retaining sheets and said non-contact oil-retaining sheets are fastened together by plural fastening members;
said non-contact oil-retaining sheets and said contact oil-retaining sheets are provided with positioning through-holes, respectively, at locations adjacent said recesses through which said guide portion can extend, and said non-contact oil-retaining sheets and said contact oil-retaining sheets other than one located in a bottom part within said case, are all provided with oiling holes, respectively, such that oilways are formed communicating from an upper side of one of said non-contact oil-retaining sheets, said one non-contact oil-retaining sheet being located in a top part within said case, to an upper side of said contact oil-retaining sheet located in said bottom part within said case;
said non-contact oil-retaining sheets and said contact oil-retaining sheets are all provided with inverted-setting preventing pin insertion bores, respectively, such that an inverted-setting preventing pin arranged within said case can be inserted into said inverted-setting preventing pin insertion bores only when said tightened non-contact oil-retaining sheets and contact oil-retaining sheets are placed in a right direction in said case;
and
each of said non-contact oil-retaining sheets and said contact oil-retaining sheets has a main body made of kapok in the form of a sheet and is provided with a mesh covering said main body at both entire upper and lower sides thereof.

11 more elements

Dependencies are inferred from the claim text.