KR20120115625A - Cage - Google Patents

Cage Download PDF

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Publication number
KR20120115625A
KR20120115625A KR1020110033041A KR20110033041A KR20120115625A KR 20120115625 A KR20120115625 A KR 20120115625A KR 1020110033041 A KR1020110033041 A KR 1020110033041A KR 20110033041 A KR20110033041 A KR 20110033041A KR 20120115625 A KR20120115625 A KR 20120115625A
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KR
South Korea
Prior art keywords
protrusion
groove
assembled
assembly
rolling element
Prior art date
Application number
KR1020110033041A
Other languages
Korean (ko)
Inventor
권영주
Original Assignee
권영주
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 권영주 filed Critical 권영주
Priority to KR1020110033041A priority Critical patent/KR20120115625A/en
Publication of KR20120115625A publication Critical patent/KR20120115625A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/46—Cages for rollers or needles
    • F16C33/50—Cages for rollers or needles formed of interconnected members, e.g. chains
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C29/00—Bearings for parts moving only linearly
    • F16C29/04—Ball or roller bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C29/00—Bearings for parts moving only linearly
    • F16C29/04—Ball or roller bearings
    • F16C29/041—Ball or roller bearings having rollers crossed within a row
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/46—Cages for rollers or needles
    • F16C33/4617—Massive or moulded cages having cage pockets surrounding the rollers, e.g. machined window cages
    • F16C33/4623—Massive or moulded cages having cage pockets surrounding the rollers, e.g. machined window cages formed as one-piece cages, i.e. monoblock cages
    • F16C33/4629—Massive or moulded cages having cage pockets surrounding the rollers, e.g. machined window cages formed as one-piece cages, i.e. monoblock cages made from metal, e.g. cast or machined window cages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/46—Cages for rollers or needles
    • F16C33/4617—Massive or moulded cages having cage pockets surrounding the rollers, e.g. machined window cages

Abstract

PURPOSE: A cage is provided to use a plurality of assemblies in which a single connector is joined, thereby obtaining a cage at required length regardless of the length of standard product. CONSTITUTION: A cage comprises a first part(10) and a second part(20). The first and second parts have holes. A part of a connected surface of a connector is exposed to outside through the holes. A protrusion or groove is formed in a front part of the first part. The rest one between the protrusion or groove is formed in a rear part of the second part. The protrusions are formed in the front and rear parts of the first and second parts so that an assembly in which the first and second parts are joined is assembled while being rotated at 90 degrees with respect to front and rear shafts of other assemblies. The protrusion and grooves are placed at 90 degree angular intervals with respect to the front and rear shafts.

Description

Cage {Cage}

The present invention relates to a cage whose length can be adjusted.

Prior Art 1  : steal( Steel Material Cage

The conventional cage is a cage made of steel, as shown in FIG. 1, and includes a part 90, a plurality of holes 92 formed in the part 90, and a plurality of holes 92. And a plurality of needle rollers or balls 93 assembled in the hook, and a hook 91 for holding the plurality of needle rollers or balls 93 in the hole 92.

These steel cages are manufactured by press-processing on needle rollers or ball materials to form a hole, and according to the length of the guides used, many kinds of products are required for lengths, resulting in high initial manufacturing costs. The problem arises.

In addition, it is made of steel (Steel), a problem that often occurs rust occurs.

In addition, when the length is extended, the length is extended by welding, in which case damage to the product is caused by the heat applied, and if not welded in a straight line it causes a loss due to the defect of the product.

When the length is reduced, the cutting surface is used after grinding or cutting, and the user cuts the cut surface. At this time, a problem occurs that the user hurts the cut surface.

In addition, when the hook 91 protrudes up and down due to the characteristics of the product, the holding force of the needle roller or the ball 93 is lowered, or it is difficult to assemble the needle roller or the ball 93 to the part 90, and to correct this. Attempts to adjust the hook 91 causes a problem that damages the product.

Prior art 2  : Made of synthetic resin Cage

The conventional cage, as shown in Figure 2, is a cage made of a synthetic resin material, the needle roller or ball 93, the second part 95, the plurality of needle roller or ball 93 is assembled, and the And a first part 94 covered and assembled to the needle roller or ball 93 and the second part 95.

The needle roller or ball 93 is assembled by rotating 90 degrees about the front and rear axis.

The first part 94 has a plurality of first holes 98 formed on the upper surface thereof so that a part of the needle roller or the ball 93 is exposed to the outside.

A plurality of second holes (not shown) are formed in the second part 95 when a part of the needle roller or the ball is exposed to the outside.

The cage of synthetic resin material, compared with the cage of steel (Steel), and reduces the processing cost and weight, there is an advantage that can be used by cutting when reducing the length, there is a problem that it is difficult to extend the length.

In addition, the cage of the synthetic resin material, injection mold is required for each length of the product, and each mold is produced according to the length of the product, the initial manufacturing cost is high, the difficulty of mold management occurs.

At the time of assembly, the needle roller or the ball 93 is arranged on the second part 95 which is long, and then the first part 94 is covered and assembled, wherein the direction of the needle roller is misaligned or the ball 93 is disposed. The problem arises that it is difficult to assemble apart.

The present invention has been made to solve the above-described problem, an object of the present invention is to provide a cage that is easy to assemble the needle roller or ball, to prevent damage to the product and to reduce the initial manufacturing cost.

Cage of the present invention for achieving the above object, the first part and the second part provided with a hole so that a part of the transmission surface of the rolling element is exposed to the outside, and the projection or groove is formed in front of the first part, The other part of the protrusion or the groove is formed at the rear of the second part, and the first part and the second part can be assembled by rotating the assembly combined with the front and rear axes of the other assembly by combining the first part and the second part. Projections and grooves are formed in front and rear of the part and the second part, the projections and grooves are characterized in that the interval of 90 degrees with respect to the front and rear axis.

The first part may include a semi-circular arc-shaped groove formed on an inner surface to assemble the rolling element, a first hole in which a portion of the upper surface is opened so that a portion of the rolling element is exposed to the outside, and a first part formed on the front surface of the first part. And a first insertion groove formed at a rear surface of the first part and into which the first protrusion is inserted, and having a front surface of the first part, the front surface of which is assembled to the rear of the first part of the other assembly. A fine groove formed therein and a fine groove or protrusion formed at a lower front corner to be assembled with the upper part of the second part, and a rear of the first part is formed at an upper rear corner to be assembled with the front of the first part of the other assembly. A formed groove and a fine groove or first protrusion formed at a lower rear edge thereof are formed to be assembled with the upper part of the second part.

The second part may include a semi-circular arc-shaped groove formed on an inner surface to assemble the rolling element, a second hole partially opened when a portion of the rolling element is exposed to the outside, and a second portion formed on the front surface of the second part. And a second insertion groove formed on a rear surface of the second part and into which the second protrusion is inserted. The front surface of the second part has a front lower corner to be assembled with the rear of the second part of the other assembly. And a fine groove or a protrusion formed at an upper front corner to be assembled with the lower part of the first part, and at the rear of the second part, at a rear lower corner to be assembled with the rear of the second part of another assembly. And a fine groove or a second protrusion formed at a corner of an upper rear portion of the protrusion to be assembled with the lower portion of the first part.

The protrusion may include a first protrusion formed on the front surface of the first part and a second protrusion formed on the front surface of the second part. The groove may be further formed on the first protrusion and the second protrusion, and the groove may be formed in the first protrusion. It characterized in that it comprises a first groove formed in the lower portion of the first projection, and a second groove formed in the upper portion of the second projection.

According to the cage of the present invention as described above, there are the following effects.

The method according to claim 1, because a plurality of assemblies combined with one rolling element is used to be assembled, it can be produced and used to the required length without limitation to the length of the standard product. In addition, when adjusting the length, the assembly is extended or disassembled, so that unnecessary mold production can be avoided and initial manufacturing cost can be reduced.

The method according to claim 2, wherein the rolling elements are assembled to the first and second parts one by one, thereby reducing the risk of losing the rolling elements, making lengthening or reducing the length of the rolling elements easier, and reducing the defective rate of the product. Can be.

The disassembly of claim 3 can be facilitated.

1 is a perspective view of a cage of a conventional steel (Steel) material.
Figure 2 is a perspective view of the cage of a conventional synthetic resin material.
3 is a perspective view of a cage according to a preferred embodiment of the present invention.
4 is an exploded view of the assembly of FIG. 3.
5 is a perspective view of the part of FIG. 3;
6 is a side cross-sectional view of FIG.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

For reference, the same configuration as the prior art of the configuration of the present invention to be described below will be referred to the above-described prior art, and a detailed description thereof will be omitted.

Figure 3 is a perspective view of the cage according to a preferred embodiment of the present invention, Figure 4 is an exploded view of the assembly of Figure 3, Figure 5 is a perspective view of the part of Figure 3, Figure 6 is a side cross-sectional view of FIG.

As shown in FIG. 3, the cage of the present invention includes a first part 10 and a second part 20 provided with holes 11 and 21 so that a part of the transmission surface of the rolling element 30 is exposed to the outside. A protrusion 12 or a groove (not shown) is formed at the front of the first part 10, and the other of the protrusion (not shown) or the groove 45 is formed at the rear of the second part 20. Is formed.

The first part 10 and the first part 10 and the second part 20 to which the assembly 1a combined are rotated by 90 degrees with respect to the front and rear axes of the other assembly 1b. The protrusions 23 and the grooves 45 are formed at the front and the rear of the second part 20, and the protrusions 23 and the grooves 45 are spaced 90 degrees with respect to the front and rear shafts I. do.

[Motor body 30]

The rolling element 30 is assembled between the first part 10 and the second part 20 to be described later.

The rolling element 30 is preferably composed of a needle roller or a ball so as to cloud the inner surface of the first part 10 and the second part 20 to be described later.

The radius of the vertical direction of the rolling element 30 is preferably greater than the height of the first part 10 and the second part 20 to be described later. Therefore, when assembling to the first part 10 and the second part 20 to be described later, a part is exposed to the outside and assembled.

[Part 1 (10)]

As shown in FIG. 5, the first part 10 includes a semicircular arc-shaped groove 100 formed on an inner surface of the rolling element 30 so that the rolling element 30 is assembled, and a portion of the upper surface such that a portion of the rolling element 30 is exposed to the outside. Is formed in the first hole 11, the first projection 13 formed on the front surface of the first part 10, the rear surface of the first part 10 and the first projection 13 It includes a first insertion groove 40 is inserted.

The inner surface of the first part 10 is formed with a semi-circular arc-shaped groove 100 so that the rolling element 30 is assembled.

The radius of the semi-circular arc-shaped groove 100 is greater than or equal to the radius of the rolling element 30, the vertical radius of the semi-circular arc-shaped groove 100 is greater than the height of the first part (10). desirable.

Thus, when assembling the rolling element 30 to the first part 10, a part of the rolling element 30 is exposed to the outside and assembled.

The first hole 11 is formed on the upper surface of the first part 10 so that a part of the rolling element 30 is exposed to the outside.

The first hole 11 exposes a part of the rolling element 30 inserted into the semi-circular arc-shaped groove 100 to the outside, and is formed from the left side to the right side of the first part 10.

The first hole 11 is formed by a portion where the radius of the semi-circular arc-shaped groove 100 is out of the upper surface of the first part 10. Therefore, the size of the first hole 11 may be formed differently depending on the radius of the semi-circular groove 100 and the height of the first part 10.

The first protrusion 13 is formed on the front surface of the first part 10.

The first protrusion 13 includes a first protrusion head 131 and a first protrusion body 132 formed at the rear of the first protrusion head 131.

The first protrusion head 131 has a semicircular arc shape.

The height in the vertical direction of the first protrusion head 131 is preferably smaller than the height of the first part 10.

The first protrusion body 132 is formed at the rear of the first protrusion head 131.

The first protrusion body 132 has a semicircular arc shape.

Preferably, the diameter of the first protrusion body 132 is smaller than the diameter of the first protrusion head 131.

The lower surface of the first protrusion head 131 and the first protrusion body 132 is positioned on the same line as the lower surface of the first part 10.

In addition, the front of the first part 10, fine grooves (15a, 15b) formed in the upper upper corner to be assembled with the rear of the first part 10 of the other assembly (1b), and the second part 20 It includes a fine groove 16 or a protrusion 17 formed in the lower front corner to be assembled with the top of the.

The fine grooves 15a and 15b include a left fine groove 15a and a right fine groove 15b formed at the upper front edge.

The left fine groove 15a has a rectangular shape and is coupled to the left protrusion 18a formed at the rear of the first part 10 of the other assembly 1b.

The right fine groove 15b has a rectangular shape and is coupled to the right protrusion 18b formed at the rear of the first part 10 of the other assembly 1b.

The fine groove 16 is formed at the lower left corner of the front surface, and includes a right angle fine groove 16a and a hook fine groove 16b formed inward from the right angle fine groove 16a.

The rectangular fine groove 16a has a rectangular shape.

The hook fine groove 16b is formed by digging inward from the upper surface of the right angle fine groove 16a.

The fine groove 16 is coupled to the upper protrusion 27 of the second part 20 to be described later.

The protruding portion 17 is formed at the lower right corner of the front side, and is formed downward from the lower surface of the first part 10.

The protrusion 17 includes a right angle protrusion 17a and a hook protrusion 17b formed inward from the right angle protrusion 17a.

The right angle protrusion 17a has a rectangular shape.

The hook protrusion 17b protrudes inward from a lower surface of the right angle protrusion 17a.

The protrusion 17 is coupled to the fine groove 26 of the second part 20 to be described later.

As shown in FIG. 6, at the rear surface of the first part 10, a first insertion groove 40 into which the first protrusion 13 of the other assembly 1b is inserted is formed.

The first insertion groove 40 includes a first large insertion groove 41 and a first small insertion groove 42 formed behind the first large insertion groove 41.

The first large insertion groove 41 is a semi-circular arc shape, the first projection head 131 of the other assembly (1b) is inserted.

The diameter of the first large insertion groove 41 is equal to or larger than the radius of the first protrusion head 131 of the other assembly 1b, and the height in the vertical direction is preferably smaller than the height of the first part 10. .

The first small insertion groove 42 is formed behind the first large insertion groove 41.

The first small insertion groove 42 is a semi-circular arc shape, the first protrusion body 132 of the other assembly (1b) is inserted.

Preferably, the diameter of the first small insertion groove 42 is smaller than the diameter of the first large insertion groove 41.

The lower surface of the first large insertion groove 41 and the first small insertion groove 42 is located on the same line as the lower surface of the first part 10.

In addition, the rear surface of the first part 10, the projections (18a, 18b) formed in the upper corner of the rear surface to be assembled with the front of the first part 10 of the other assembly (1b), and the second part 20 to be described later It includes a first protrusion 19 or a first fine groove (not shown) formed in the lower rear corner to be assembled with the top of the.

The protrusions 18a and 18b are formed to protrude rearward from the upper rear corners, and include a left protrusion 18a and a right protrusion 18b.

The left protruding portion 18a has a rectangular shape and is coupled to the left fine groove 15a formed in front of the first part 10 of the other assembly 1b.

The right protrusion 18b has a rectangular shape and is coupled to the right fine groove 15b formed in front of the first part 10 of the other assembly 1b.

The first protrusion 19 is formed to protrude downward from the lower left corner of the rear surface, and includes a first rectangular protrusion 19a and a first hook protrusion (not shown).

The first rectangular protrusion 19a has a rectangular shape.

The first hook protrusion (not shown) is formed to protrude inward from the left side of the first rectangular protrusion 19a.

The first protrusion 19 is coupled to the fine groove 290 of the second part 20 to be described later.

The first fine groove (not shown) is formed at the lower right corner of the rear surface and is coupled to the second protrusion 29 of the second part 20 to be described later.

A first side hole 12 is formed in the side surface of the first part 10.

The first side holes 12 are formed on the left side and the right side, respectively, and have a semicircular arc shape.

The first side hole 12 is in contact with a part of the left side and the right side of the rolling element 30 when assembling the rolling element 30 to the first part 10, the radius of the first side hole 12 Is smaller than the radius of the semi-circular groove 100.

This first side hole 12 has the advantage of fixing the position of the rolling element 30 during cage operation and to prevent interference with the object.

[Part 2 (20)]

As shown in FIG. 4, the second part 20 is partially formed when the semicircular arc-shaped groove 200 formed on the inner surface of the rolling element 30 and the rolling element 30 are exposed to the outside. Is formed in the second hole 21 is open, the second projection 23 formed on the front of the second part 20, the rear surface of the second part 20 and the second projection 23 It includes a second insertion groove 45 is inserted.

A semi-circular arc-shaped groove 200 is formed on the inner surface of the second part 10 to assemble the rolling element 30.

The radius of the semi-circular groove 200 is greater than or equal to the radius of the rolling element 30, the vertical radius of the semi-circular groove 200 is greater than the height of the second part (20). Do.

Thus, when assembling the rolling element 30 to the second part 20, a part of the rolling element 30 is exposed to the outside and assembled.

A second hole 21 is formed in the lower surface of the second part 20 so that a part of the rolling element 30 is exposed to the outside.

The second hole 21 exposes a part of the rolling element 30 inserted into the semi-circular arc-shaped groove 200 to the outside, and is formed from the left side to the right side of the second part 20.

The second hole 21 is formed as long as the radius of the semi-circular groove 200 is out of the upper surface of the second part 20. Therefore, the size of the second hole 21 may be formed differently depending on the radius of the semi-circular groove 200 and the height of the second part 20.

The second protrusion 23 is formed on the front surface of the second part 20.

The second protrusion 23 includes a second protrusion head 231 and a second protrusion body 232 formed behind the second protrusion head 231.

The second protrusion head 231 has a semicircular arc shape.

The height of the second protrusion head 231 in the vertical direction is preferably smaller than the height of the second part 20.

A second protrusion body 232 is formed at the rear of the second protrusion head 231.

The second protrusion body 232 has a semicircular arc shape.

The diameter of the second protrusion body 232 is preferably smaller than the diameter of the second protrusion head 231.

The upper surfaces of the second projection head 231 and the second projection body 132 are positioned on the same line as the upper surface of the second part 20.

In addition, the front surface of the second part 20, fine grooves (25a, 25b) formed in the lower front corner to be assembled with the rear of the second part 20 of the other assembly (1b), and the first part 10 It includes a fine groove (26) or protrusions (27) formed in the front upper corner to be assembled with the bottom of the.

The fine grooves 25a and 25b include a left fine groove 25a and a right fine groove 25b formed at the lower front edge.

The left fine groove 25a has a rectangular shape and is coupled to the left protrusion 28a formed at the rear of the second part 20 of the other assembly 1b.

The right fine groove 25b has a rectangular shape and is coupled with the right protrusion 28b formed at the rear of the second part 20 of the other assembly 1b.

The fine groove 26 is formed at the upper right corner of the front surface, and includes a right angle fine groove 26a and a hook fine groove 26b formed inward from the right angle fine groove 26a.

The right fine groove 26a has a rectangular shape and is coupled to the right angle protrusion 17a of the first part 10.

The hook fine groove 26b is formed by digging inward from the left side surface of the rectangular fine groove 26a, and is coupled to the hook protrusion 17b of the first part 10.

The protruding portion 27 is formed at the left upper front corner and protrudes upward from the upper surface of the second part 20.

The protrusion 27 includes a right angle protrusion 27a and a hook protrusion 27b formed inward from the right angle protrusion 27a.

The right angle protrusions 27a have a rectangular shape and are coupled to the right angle grooves 16a of the first part 10.

The hook protrusion 27b is formed to protrude inward from the bottom surface of the right angle protrusion 27 and is coupled to the hook fine groove 16b of the first part 10.

On the rear surface of the second part 20, a second joining groove 45 into which the second protrusion 23 of the other assembly 1b is inserted is formed.

The second insertion groove 45 includes a second large insertion groove 46 and a second small insertion groove 47 formed at the rear of the second large insertion groove 46.

The second large insertion groove 46 has a semicircular arc shape, and the second protrusion head 231 of the other assembly 1b is inserted therein.

The diameter of the second large insertion groove 46 is equal to or larger than the radius of the second protrusion head 231 of the other assembly 1b, and the diameter in the vertical direction is preferably smaller than the height of the second part 20. Do.

A second small insertion groove 47 is formed at the rear of the second large insertion groove 46.

The second small insertion groove 47 has a semicircular arc shape, and the second protrusion body 132 of the other assembly 1b is inserted therein.

The diameter of the second small insertion groove 47 is preferably smaller than the diameter of the first large insertion groove 46.

The upper surface of the second large insertion groove 46 and the second small insertion groove 47 is located on the same line as the upper surface of the second part 20.

In addition, the rear surface of the second part 20, the projections (28a, 28b) formed in the lower corner of the rear surface to be assembled with the front of the second part 20 of the other assembly (1b), and the lower part of the first part 10 And a second protrusion 29 or a second fine groove 290 formed at an upper edge of the rear surface so as to be assembled with each other.

The protruding portions 28a and 28b protrude rearward from the lower rear edge thereof and include a left protruding portion 28a and a right protruding portion 28b.

The left protruding portion 28a has a rectangular shape and is coupled to the left fine groove 25a formed in front of the second part 20 of the other assembly 1b.

The right protrusion 28b has a rectangular shape and is coupled to the right fine groove 25b formed in front of the second part 20 of the other assembly 1b.

The second protrusion 29 is formed to protrude upward from the upper right corner of the rear surface, and includes a second rectangular protrusion 29a and a second hook protrusion 29b.

The second rectangular protrusion 29a has a rectangular shape and is coupled to a first rectangular fine groove (not shown) of a first fine groove (not shown) formed at a lower right corner of the rear side of the first part 10.

The second hook protrusion 29b is formed to protrude inward from the left side of the second rectangular protrusion 29a and is coupled to the first hook fine groove (not shown) of the first fine groove (not shown).

The second fine groove 290 is formed at the upper left corner of the rear side, and the second hook fine groove 290a and the second hook fine groove (not shown) formed inward from the right side of the second rectangular fine groove 290a. Include.

The second rectangular fine groove 290a has a rectangular shape and is coupled to the first rectangular protrusion 19a of the first part 10.

The second hook fine groove (not shown) is formed by digging inward from the right side of the second rectangular fine groove (290a), it is coupled to the first hook fine groove (not shown) of the first projection (19).

A second side hole 22 is formed in the side surface of the second part 20.

The second side holes 22 are formed on the left side and the right side, respectively, and have a semicircular arc shape.

The upper surface of the second side hole 22 is in the same line as the upper surface of the semi-circular groove 200.

The second side hole 22 is in contact with a part of the left side and the right side of the rolling element 30 when assembling the rolling element 30 to the second part 20, the radius of the second side hole 22. Is smaller than the radius of the semi-circular groove 200.

This second side hole 22 has the advantage of fixing the position of the rolling element 30 during cage operation and to prevent interference with the object.

[Groove 14 / groove 24]

Grooves 24 and 25 are further formed in the first protrusion 13 and the second protrusion 23.

The grooves 24 and 25 may include a first groove 14 formed below the first protrusion 13 and a second groove 24 formed above the second protrusion 24.

The first groove 14 is formed in the front lower portion of the first protrusion 13.

The first groove 14 is formed from the front lower portion of the first projection head 131 to the front lower portion of the first part 10, and is formed in an inverted U shape.

The height of the first groove 14 is preferably smaller than the height of the first projection head 131.

The second groove 24 is formed at the front upper portion of the second protrusion 23.

The second groove 24 is formed in a U shape from the lower portion of the front surface of the second protrusion head 231 to the lower portion of the front portion of the second part 20.

The height of the second groove 24 is preferably smaller than the height of the second protrusion head 231.

When disassembling the assembled assembly (1a, 1b), the first groove 14 and the second groove 24, by inserting a tool into the groove (14, 24) using the principle of the lever There is an advantage that the 10 and the second part 20 can be easily disassembled.

Hereinafter, the operation of the present embodiment having the above-described configuration will be described.

The rolling element 30 is inserted into the semi-circular arc-shaped groove 200 of the second part 20.

The upper part of the second part 20 is covered with the first part 10.

The first protrusion 13 and the second protrusion 23 of the other assembly 1b are assembled into the first insertion groove 40 and the second insertion groove 45 of the assembly 1a.

As described above, although described with reference to a preferred embodiment of the present invention, those skilled in the art various modifications or variations of the present invention without departing from the spirit and scope of the invention described in the claims below Can be carried out.

As mentioned above, the cage which concerns on this invention is especially suitable for the cage which can be adjusted in length.

1a: assembly 1b: other assembly
30: rolling element
10: first part 20: second part
100: semi-circular arc groove 200: semi-circular arc groove
11: first hole 21: second hole
12: first side hole 22: second side hole
13: first projection 23: second projection
131: first projection head 231: second projection head
132: the first projection body 232: the second projection body
14: first groove 24: second groove
15a: Left Fine Groove 25a: Left Fine Groove
15b: Right Fine Groove 25b: Right Fine Groove
16: Fine Home 26: Fine Home
16a: right pine groove 26a: right pine groove
16b: Hook Fine Groove 26b: Hook Fine Groove
17: protrusions 27: protrusions
17a: right angle protrusion 27a: right angle protrusion
17b: hook protrusion 27b: hook protrusion
18a: left projection part 28a: left projection part
18b: right protrusion 28b: right protrusion
19: first protrusion 29: second protrusion
19a: first right angle protrusion 29a: second right angle protrusion
29b: second hook protrusion
290: second pine home
290a: second right pine groove
290b: Second hook pine groove
40: first insertion groove 45: second insertion groove
41: first large insertion groove 46: second large insertion groove
42: first small insertion groove 47: second small insertion groove

Claims (3)

A first part and a second part provided with holes so that a part of the rolling surface of the rolling element is exposed to the outside;
A protrusion or groove is formed in front of the first part, and the other of the protrusion or groove is formed in the rear of the second part.
Projections and grooves are formed in front and rear of the first part and the second part so as to assemble the assembly in which the first part and the second part are coupled by rotating 90 degrees about the front and rear axes of the other assembly, The protrusion and the groove is a cage, characterized in that spaced 90 degrees with respect to the front and rear axis. The method according to claim 1,
The first part may include a semi-circular arc-shaped groove formed on an inner surface to assemble the rolling element, a first hole in which a portion of the upper surface is opened so that a portion of the rolling element is exposed to the outside, and a first formed on the front surface of the first part. And a first insertion groove formed on a rear surface of the first part and into which the first protrusion is inserted.
In the front of the first part, a fine groove formed in the upper front corner to be assembled with the rear of the first part of the other assembly, and a fine groove or protrusion formed in the lower front corner to be assembled with the upper part of the second part,
On the rear surface of the first part, a protrusion formed at the upper rear corner to be assembled with the front of the first part of the other assembly, and a fine groove or first protrusion formed at the lower rear corner to be assembled with the upper part of the second part is formed. ,
The second part may include a semi-circular arc-shaped groove formed on an inner surface to assemble the rolling element, a second hole partially opened when a portion of the rolling element is exposed to the outside, and a second portion formed on the front surface of the second part. And a second insertion groove formed on a rear surface of the second part and into which the second protrusion is inserted.
The front of the second part, the fine groove formed in the lower front corner to be assembled with the rear of the second part of the other assembly, and the fine groove or protrusion formed in the upper front corner to be assembled with the lower part of the first part,
The rear part of the second part includes a protrusion formed at a lower rear corner to be assembled with the rear part of the second part of the other assembly, and a fine groove or a second protrusion formed at the upper rear corner to be assembled with the lower part of the first part. Cage. The method according to claim 1 or 2,
The protrusion includes a first protrusion formed on the front surface of the first part and a second protrusion formed on the front surface of the second part,
Grooves are further formed in the first protrusion and the second protrusion,
The groove is a cage characterized in that it comprises a first groove formed in the lower portion of the first projection, and a second groove formed in the upper portion of the second projection.
KR1020110033041A 2011-04-11 2011-04-11 Cage KR20120115625A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020110033041A KR20120115625A (en) 2011-04-11 2011-04-11 Cage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020110033041A KR20120115625A (en) 2011-04-11 2011-04-11 Cage

Publications (1)

Publication Number Publication Date
KR20120115625A true KR20120115625A (en) 2012-10-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020110033041A KR20120115625A (en) 2011-04-11 2011-04-11 Cage

Country Status (1)

Country Link
KR (1) KR20120115625A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180002229U (en) * 2017-01-12 2018-07-20 쑤-잉 리 Positive linear motion apparatus
CN110822042A (en) * 2018-08-14 2020-02-21 咸阳蓝博机械有限公司 Rack anti-creep cross guide rail pair
WO2022163050A1 (en) * 2021-01-29 2022-08-04 Thk株式会社 Linear motion guide device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180002229U (en) * 2017-01-12 2018-07-20 쑤-잉 리 Positive linear motion apparatus
CN110822042A (en) * 2018-08-14 2020-02-21 咸阳蓝博机械有限公司 Rack anti-creep cross guide rail pair
WO2022163050A1 (en) * 2021-01-29 2022-08-04 Thk株式会社 Linear motion guide device

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