TWI710719B - Sealing member of linear slide - Google Patents

Abstract

The present invention provides a sealing member of a linear slide rail, which can inhibit the intrusion of fine foreign matter into the gap between the guide rail and the slide, and reduce the sliding resistance of the sealing member to the guide rail. The solution of the present invention is a sealing member for a linear slide rail. The linear slide rail has a guide rail 3 and a sliding member movably embedded on the guide rail 3 via a ball belonging to a rotating body. The sealing structure The material is installed on the sliding member of the linear slide rail and seals the opening of the gap between the guide rail 3 and the sliding member; in the sealing member, the sliding part 2a slidingly contacted with the guide rail 3 is impregnated It is composed of rubber or resin fibers 2c.

Description

Sealing member of linear slide

The present invention relates to a sealing member installed on a linear slide rail, which is used in working machinery, industrial machinery and the like.

In the past, there has been known a linear slide rail composed of a guide rail and a slider movably installed on the guide rail via a rotating body. The linear slide rail system is provided with a gap between the guide rail and the sliding member. If foreign objects such as garbage, dust, cutting powder enter the gap, it will prevent the rotating body from rotating smoothly. Generally, in order to prevent the entry of such foreign matter, a sealing member that seals the opening of the gap between the guide rail and the slider is installed at both ends of the slider in the front-rear direction.

For example, the sealing member of the linear slide track disclosed in Patent Document 1 has a sealing lip portion slidably connected to the guide rail, and the sealing lip portion uses rubber or synthetic resin containing a lubricating material. According to this sealing member, the opening of the gap between the guide rail and the slider can be sealed to prevent foreign matter from entering the gap. In addition, rubber or synthetic resin containing lubricating material is used for the sealing lip that slides in contact with the guide rail. This eliminates the need to supply lubricant from outside.

[Prior Technical Literature]

[Patent Literature]

Patent Document 1: Japanese Patent Application Laid-Open No. 6-346919.

However, in the linear slide sealing member disclosed in Patent Document 1, in order to improve the sealing performance to the extent that fine foreign matter does not enter the gap between the guide rail and the slide, the sealing lip must be A certain amount of force or more is pressed against the guide rail, and as a result, there is a problem that the sliding resistance is increased and the sliding property is deteriorated.

Therefore, the object of the present invention is to provide a sealing member for a linear slide rail, which can suppress the intrusion of fine foreign matter into the gap between the guide rail and the slide member, and can reduce the sliding resistance of the sealing member to the guide rail.

(1) One aspect of the present invention is a sealing member for a linear slide rail, the linear slide rail system has a guide rail and a sliding member movably embedded on the guide rail via a rotating body, and the sealing member system The sliding member installed on the linear slide rail seals the opening of the gap between the guide rail and the sliding member; in the sealing member, the sliding part that is slidably connected to the guide rail is impregnated with rubber Or composed of resin fibers.

According to the configuration of (1) above, since the sliding part of the sealing member that is slidably connected to the guide rail is composed of fibers impregnated with rubber or resin, even if the sliding part is made to prevent fine foreign matter from entering The gap between the guide rail and the slider is used in a state where the guide rail is pressed against the guide rail. Compared with the case of using a sealing member composed of rubber or resin, the sliding resistance of the slider to the guide rail can be changed. small. That is, it is possible to simultaneously solve the two problems of suppressing the intrusion of fine foreign matter into the gap between the guide rail and the sliding member and the sliding resistance of the sliding member to the guide rail when the guide rail moves in the axial direction.

(2) Another aspect of the present invention may also be a sealing member for a linear slide rail, the linear slide rail system has a guide rail and a sliding member movably embedded on the guide rail via a rotating body, and the seal The member is installed on the sliding member of the linear slide rail to seal the opening of the gap between the guide rail and the sliding member; the sealing member has a reinforcing plate and is attached to the reinforcing plate and is impregnated with Rubber or resin fibers; in the sealing member, the sliding part that is in sliding contact with the guide rail is composed of fibers impregnated with the rubber or resin.

According to the above-mentioned configuration (2), in addition to obtaining the same functions and effects as the case of the above-mentioned configuration (1), the shape of the fiber impregnated with rubber or resin can be maintained by the reinforcing plate. In particular, it is possible to maintain the shape of the sliding contact portion made of the fiber, and thereby stable sealing performance can be expected.

(3) Another aspect of the present invention can also be a sealing member for a linear slide rail. The linear slide rail has a guide rail and a sliding member movably embedded on the guide rail via a rotating body. The seal The member is installed on the sliding member of the linear slide rail to seal the opening of the gap between the guide rail and the sliding member; the sealing member has a laminated structure, and the laminated structure contains: impregnated with rubber Or a first layer composed of resin fibers; and a second layer composed of a reinforcing plate; in the sealing member, the sliding part that slidably contacts the guide rail is also composed of the aforementioned laminated structure.

According to the above-mentioned configuration (3), the sliding part of the sealing member that is slidably connected to the guide rail contains the first layer composed of fibers impregnated with rubber or resin and the second layer composed of reinforcing plates. The sliding part is used in a state where the sliding part is pressed against the guide rail so that no fine foreign matter enters the gap between the guide rail and the slider. Compared with the use of a sealing member made of pure rubber or resin In this case, the sliding resistance of the sliding member to the guide rail can still be reduced. That is, it is possible to simultaneously solve the two problems of a trade-off relationship between the suppression of the intrusion of fine foreign matter into the gap between the guide rail and the slider and the sliding resistance of the slider when the guide rail moves in the axial direction. In addition, when the slider moves on the guide rail, the deflection of the sliding contact portion of the first layer in the sliding direction is stuck to the single side of the first layer and is suppressed by the second layer composed of a reinforcing plate. Even if the force of pressing the sliding part against the guide rail is light, sufficient airtightness can be ensured.

(4) The sealing member of the linear slide rail according to another aspect of the present invention has the above-mentioned (3) structure, or the above-mentioned laminated structure may further include a third layer made of felt or foam ; The sliding part that is slidably connected to the guide rail is also composed of a laminated structure that further contains the third layer.

According to the configuration of (4) above, by impregnating the third layer made of felt or foamed material with the lubricant in advance, the lubricant can be supplied to the sliding contact portions of the first and second layers, thereby There is no need to supply lubricant from elsewhere.

1‧‧‧Linear slide

2, 2A, 2B‧‧‧Sealing structure

2a、2Aa‧‧‧Sliding joint

2Ad, 2Ae, 2d, 2e‧‧‧Protrusions

2b‧‧‧Support board

2c‧‧‧Fiber-containing sealing layer (fiber impregnated with rubber or resin)

2f‧‧‧Reinforcing plate

3‧‧‧Guide rail

4‧‧‧Ball (rotating body)

5‧‧‧Sliding Parts

6, 8‧‧‧Rotating groove of the rail side rotating body

9,12‧‧‧Rotation groove of sliding part side rotating body

10‧‧‧Concave

11‧‧‧Sleeve

13,17‧‧‧Ball return path

14‧‧‧End cap

15, 18‧‧‧curved passage

16‧‧‧Back

19‧‧‧Bolt

20‧‧‧Through hole

21‧‧‧Level 1

22‧‧‧Level 2

23‧‧‧Level 3

Fig. 1 is a perspective view showing a linear slide rail and its sealing member in the first embodiment or the second embodiment of the present invention.

2 is a perspective view showing the linear slide rail and its sealing member in the first embodiment or the second embodiment of the present invention, and is a view in which a part of the slider is cross-sectioned to expose a ball belonging to a rotating body.

Fig. 3(a) is a front view showing the sealing member of the linear slide according to the first embodiment of the present invention.

Fig. 3(b) is an A-A cross-sectional view of Fig. 3(a).

Fig. 4(a) is a front view showing a sealing member of a linear slide according to a second embodiment of the present invention.

Fig. 4(b) is a B-B cross-sectional view of Fig. 4(a).

Fig. 5(a) is a front view showing a sealing member of a linear slide according to a modification of the first embodiment of the present invention.

Fig. 5(b) is a C-C cross-sectional view of Fig. 5(a).

Hereinafter, the sealing member of the linear slide rail according to the first embodiment of the present invention will be described with reference to the drawings.

The linear slide rail 1 exemplified in Figures 1 and 2 is mainly composed of the following components: a sealing member 2; a guide rail 3; and a slider 5 on the guide rail 3 via a ball 4 belonging to a rotating body on the shaft The direction is movably embedded.

The guide rail 3 extends linearly, and rail-side rotor rotation grooves 6 are formed in the axial direction on both side surfaces of the guide rail 3. In addition, rail-side rotor rotation grooves 8 are also formed in the axial direction on both sides of the upper surface of the guide rail 3.

The slider 5 has the appearance of a substantially rectangular parallelepiped, and a recessed portion 10 that is freely fitted in the guide rail 3 is formed in the center of the lower part of the slider 5. Sleeves 11 are formed on both sides of the recess 10, and slider-side rotor rotation grooves 12 facing the rail-side rotor rotation groove 6 are formed on the inner surfaces of the two sleeve portions 11. A plurality of balls 4 belonging to the rotor are rotatably loaded between the rail-side rotor rotation groove 6 and the slider-side rotor rotation groove 12 facing each other. In addition, ball return passages 13 are formed in the axial direction within the thickness of the two sleeves 11 of the slider 5; in addition, the ball return passages 13 are formed at both ends of the slider 5 in the front-rear direction and viewed from the axial direction. A U-shaped curved path 15 is formed in the end cap 14 to communicate the ball return passage 13 with the rail-side rotor rotation groove 6 and the slider-side rotor rotation groove 12 to form an endless The ball loops the road.

On the bottom surface of the back 16 of the slider 5 are formed a slider-side rotating body rotating groove 9 facing the rail-side rotating body rotating groove 8, and a rail-side rotating body rotating groove 8 and a slider-side rotating body rotating groove facing each other are formed A large number of balls 4 belonging to the rotating body are rotatably loaded between 9. In addition, a ball return passage 17 is also formed in the axial direction in the thickness of the back 16 of the slider 5; in addition, similarly, the end cap 14 is formed with the ball return passage 17 and the rail-side rotating body rotating groove 8. The U-shaped curved passage 18 communicating with the slider-side rotor turning groove 9 constitutes an endless ball circulation path.

The sealing member 2 is installed on both end faces or single end faces in the front-rear direction of the slider 5 with bolts 19 to seal the opening of the gap between the guide rail 3 and the slider 5. The sealing member 2 of this embodiment is, for example, as shown in FIG. 3, and has: a support plate 2b made of rubber, resin, or metal that does not contain fibers; and a fiber-containing sealing layer 2c made of rubber or resin impregnated The fiber is formed so as to extend from the support plate 2b to the sliding part 2a slidably connected to the guide rail 3. The fiber-containing sealing layer 2c may be formed at least in the sliding part 2a. In addition, although the boundary between the support plate 2b and the fiber-containing sealing layer 2c is shown by a solid line in FIG. 3 for convenience of description, it does not clearly indicate the real boundary.

The sealing member 2 is shown in FIG. 3( a) when viewed from the axial direction, and the sliding contact portion 2 a slidably contacting the guide rail 3 corresponds to the cross-sectional shape of the guide rail 3. In particular, when the sealing member 2 is installed on the slider 5, the sliding portion 2a often abuts against the guide rail 3 without a gap, so that the gap between the guide rail 3 and the slider 5 will not be fine. The guide rail 3 is pressed against the guide rail 3 with a pressure to the extent that foreign matter (a foreign matter of a size that deteriorates the rotation of the rotating body) has entered. That is, the size and shape of the sliding contact portion 2a and other necessary sizes and shapes are set in such a manner. Of course, the shape of the sliding connection portion 2a also corresponds to the rail-side rotating body rotation grooves 6, 8. The sliding connection portion 2a is formed with a convex portion 2d which is fitted and slidably connected to the rail-side rotation body rotation groove 6; and a convex portion 2e, fitted and slidably connected to the rotating groove 8 of the rail-side rotating body.

The size and shape of the outline of the sealing member 2 other than the sliding portion 2a does not need to be strictly defined, but in this embodiment, the size and shape of the portion other than the sliding portion 2a of the sealing member 2 corresponds to the shape of the end cap 14. , The sealing member 2 as a whole is formed into a substantially U-shaped shape. In addition, the reference numeral 20 in FIG. 3 is a through hole through which the aforementioned bolt 19 is inserted.

The fiber-containing sealing layer 2c can be made of aramid fiber, nylon, urethane, cotton, silk, hemp, acetate, rayon, and fluorine. Fiber and polyester (polyester), etc., and impregnated with rubber or resin. The shape of the fiber may be a short fiber shape or a long fiber shape, for example.

By impregnating the fibers with rubber or resin, the rubber or resin material enters between the fibers, and the fibers are adhered to each other and entangled to form a fiber-containing sealing layer 2c. In addition, the fiber is impregnated with rubber, etc., to reduce the abrasion caused by the friction between the fibers, and in addition, it can also be the surface of the fiber-containing sealing layer 2c that occurs between the fiber-containing sealing layer 2c and the guide rail 3 The improvement of wear resistance.

In addition, the rubber may be any one that can impregnate fibers. For the rubber, for example, urethane rubber, nitrile rubber, silicon rubber, fluororubber, acrylic rubber, ethylene-propylene rubber can be used alone. Rubber (ethylene-propylene rubber), butyl rubber (isoprene rubber), chlorinated polyethylene rubber (chlorinated polyethylene rubber), epichlorohydrin rubber (epichlorohydrin rubber), hydrogenated nitrile rubber (hydrogenated) nitrile rubber, chloroprene rubber, polybutadiene rubber, styrene butadiene rubber, natural rubber, etc. Or use these rubbers through various Things that have been denatured. These rubbers can be used alone or in a mixture of multiple rubbers. In addition, in addition to the vulcanizing agent, rubber can also be compounded in suitable amounts such as vulcanization accelerators, anti-aging agents, softeners, plasticizers, fillers, and coloring agents that have been used as rubber compounding agents from the past. In addition, in order to improve the lubricity of the fiber-containing sealing layer 2c, the rubber may also contain graphite, silicone oil, fluorine powder, or molybdenum disulfide, etc. Solid lubricants. In addition, it can also be used instead of the above rubber or together with the above rubber: Acrylic resin, polyester resin, urethane resin, vinyl chloride resin, polypropylene , Polycarbonate (polycarbonate), polyethylene terephthalate resin (PET resin; polyethylene terephthalate resin), fluororesin (fluororesin), polyethylene (polyethylene), AS resin (acrylonitrile styrene resin; acrylonitrile/styrene) Resin), ABS resin (acrylonitrile butadiene styrene resin; acrylonitrile/butadiene/styrene resin), polystyrene resin (polystyrene resin), polyvinyl chloride (polyvinyl chloride), polyvinylidene chloride (polyvinylidene chloride), Thermoplastic or thermosetting resins such as polyvinyl acetate, nylon, alkyd resin, phenol resin, epoxy resin, and thermoplastic resin.

The above-mentioned impregnation treatment of fibers with rubber or resin is suitable for use in a method of impregnating predetermined fibers (short fibers, long fibers, or cloth) after the rubber or resin is dissolved in a solvent or the like into a liquid state. As a precursor of the fiber-containing sealing layer 2c, a cloth formed of fibers in a sheet shape can be used. The method of impregnation treatment of the rubber or resin of the cloth can also be carried out in the same manner as described above.

Examples of fabric components include non-woven fabrics in which fibers are entangled irregularly, woven fabrics or knitted fabrics (knit fabrics) that are regularly formed. Compared with those made of only fibers (short fibers or long fibers), since these cloths are sheet-like, they have a feature that they can be easily impregnated with rubber or the like (easy to handle). In addition, as for the weaving method of the above-mentioned woven fabric, plain weave, sateen weave, twilled weave, and the like can be used.

In addition, the above-mentioned cloth preferably has a certain degree of stretchability. When the cloth is formed into a shape that follows the shape of the rail-side rotor turning grooves 6, 8, by making the cloth stretchable, it has a shape that makes it easy for the cloth surface to follow the rail-side rotor turning grooves 6, 8 and It has the advantage that the surface of the finished fiber-containing sealing layer 2c is not prone to wrinkles and the like, and the surface can be finished uniformly. As a result, the sliding resistance generated between the guide rail 3 and the sealing member 2 can be further reduced.

(Effects of the sealing member of the linear slide of the first embodiment)

According to the above configuration, since the sliding part 2a of the sealing member 2 with respect to the guide rail 3 is made of fiber impregnated with rubber or resin, even if the gap between the guide rail 3 and the slider 5 is not The sliding part 2a of the sealing member 2 is pressed against the guide rail 3 with a pressure to the extent that fine foreign matter enters. Compared with the case of using a sealing member made of rubber or resin, it can still be used. The sliding resistance of the slider 5 to the guide rail 3 becomes smaller. In addition, since the fiber-containing sealing layer 2c contains fibers, it has higher durability than a sealing member made of rubber or resin alone.

Next, the sealing member of the linear slide rail of the second embodiment of the present invention will be described with reference to the drawings. In addition, since the structure other than the sealing member is the same as that described in the first embodiment, the description other than the sealing member will be omitted below.

As shown in FIG. 4, the sealing member 2A of the linear slide rail according to the second embodiment has a laminated structure including: a first layer 21 composed of fibers impregnated with rubber or resin; and a second layer 22, made of resin or metal; and the third layer 23, made of felt (felt). The sealing member 2A is installed on both end surfaces or single end surfaces of the slider 5 in the front-rear direction with bolts 19. The installation is carried out in the following manner: the first layer 21 is arranged on the side closest to the slider 5, the second layer 22 is arranged on the side not close to the slider 5 in the first layer 21, and the second layer 22 is The third layer 23 is arranged on the side not close to the slider 5.

The first layer 21 made of fibers impregnated with rubber or resin is made of the same material as the fiber-containing sealing layer 2c described in the first embodiment, and its manufacturing method and the like are as described above. This material functions as a sealing member in the same way as rubber and the like, and as described in the first embodiment, it has a sliding resistance to the guide rail 3 compared to a sealing member made of rubber or resin. Small advantages.

The second layer 22 made of resin or metal functions as a reinforcing plate for maintaining the shape of the entire sealing member 2A. In addition, the second layer 22 is designed to support the sliding contact portion 2Aa of the first layer 21 when the slider 5 moves on the guide rail 3, and play the role of moving the sliding contact portion 2Aa of the first layer 21 in the sliding direction. The effect of deflection to restrain. The second layer 22 may be resin or metal, but since the adhesiveness of the resin is superior, the durability of the laminated structure of the sealing member 2A can be improved.

By impregnating the third layer 23 made of felt with lubricant in advance, the lubricant can be supplied to the sliding contact portions 2Aa of the first layer 21 and the second layer 22. This eliminates the need to supply lubricant from elsewhere. As the felt system, Aromatic polyamide, carbon fiber, polyester fiber, fire-resistant fiber, natural fiber can be used alone or in combination, and it is usually formed into a non-woven fabric. In addition, the third layer 23 may not be made of felt but may be made of foamed material. This is because the foam material can also contain a lubricant, which can achieve the same effect as the thing made of felt.

In this embodiment, the first layer 21 to the third layer 23 have substantially the same contour shape when viewed from the axial direction, and a sliding contact with the guide rail 3 is formed on any one of the first layer 21 to the third layer 23的滑接部2Aa. In particular, the sliding portion 2Aa of the first layer 21 always abuts against the guide rail 3 without a gap, and is set so that there is no fine foreign matter in the gap between the guide rail 3 and the slider 5. The size and shape of the guide rail 3 is pressed by the pressure to the extent that the foreign matter of the size deteriorated by the rotation). As for the sliding contact portion 2Aa of the second layer 22 and the third layer 23, since they do not exhibit a sealing function, they are desirably a size and shape that slightly abuts the guide rail 3. The sliding portion 2Aa of the sealing member 2A is also formed with a convex portion 2Ad fitted and slidably connected to the rail-side rotating body rotation groove 6 and a convex portion 2Ae fitted and slidably connected to the rail-side rotating body rotating groove 8.

The size and shape of the outline part of the sealing member 2A other than the sliding part 2Aa does not need to be rigorously defined. However, in this embodiment, the size and shape of the part other than the sliding part 2Aa of the sealing member 2A corresponds to the shape of the end cap 14. On the whole, it is roughly ㄈ shape. In addition, the reference numeral 20 in FIG. 4 is a through hole through which the aforementioned bolt 19 is inserted.

The sealing member 2A having the above-mentioned laminated structure can be manufactured by various conventional manufacturing methods. For example, an adhesive can be applied to the bonding surface of the first layer 21 and the second layer 22 respectively, and the first layer 21 and the second layer 22 may be laminated, and also on the bonding surface of the second layer 22 and the third layer 23 After the adhesive is applied separately and the second layer 22 and the third layer 23 are laminated, they are press-formed, and then deep-drawn into a shape as shown in FIG. 4(a) to be manufactured.

(Effects of the sealing member of the linear slide of the second embodiment)

According to the above configuration, the sliding part 2Aa of the sealing member 2A that is slidingly connected to the guide rail 3 is composed of the first layer 21 composed of fibers impregnated with rubber or resin and the second layer 22 that functions as a reinforcing plate. Since the sliding part 2Aa is pressed against the guide rail 3 in such a way that the gap between the guide rail 3 and the slider 5 will not enter the guide rail 3, it is used in a state of In the case of a sealing member made of rubber or resin, the sliding resistance of the sliding member 5 with respect to the guide rail 3 can still be reduced. In addition, when the slider 5 moves on the guide rail 3, the sliding contact portion 2Aa of the first layer 21 is supported by the second layer 22, thereby preventing the sliding contact portion 2Aa of the first layer 21 from moving in the sliding direction. Since it is flexed, even if the force of pressing the sliding portion 2Aa against the guide rail is reduced, sufficient sealing performance can be ensured. In addition, since the first layer 21 of the sealing member 2A contains fibers, it is more durable than a sealing member composed solely of rubber or resin. In addition, by impregnating the third layer 23 made of felt or foamed material with lubricant in advance, the lubricant can be supplied to the sliding contact portion 2Aa of the first layer 21 sliding to the guide rail 3, making it unnecessary to Supply lubricant elsewhere.

In the foregoing, although the embodiments of the present invention have been described based on the drawings, the specific configuration is of course not limited by these embodiments. The scope of the present invention is shown not by the description of the above-mentioned embodiments but by the scope of patent application, and also includes all changes within the meaning and scope equivalent to the scope of patent application.

For example, in the above-mentioned embodiment, although the linear slide rail having the rotary grooves of the rotor formed on both sides and the upper surface of the guide rail is taken as an example, the sealing member of the present invention is not limited to the above Types of linear slides, and can be applied to various types of linear slides.

In addition, in the first embodiment described above, the fiber of the "fiber-containing sealing layer 2c" is impregnated with rubber or the like, but the present invention is not limited to this as long as the fiber is impregnated with rubber or the like. And the sliding resistance between the metal surface and the low is enough. In addition, a sheet-like cloth formed of fibers may be used to form the fiber-containing sealing layer 2c. For example, canvas, velvet, denim, woven fabric, or knitted fabric impregnated with rubber or the like can be used. In addition, it is also possible to use fibers that expand and contract on one side of the vertical and horizontal directions or on both sides.

In addition, in the above-mentioned first embodiment, only the sliding portion 2a of the sealing member 2 that is slidingly connected to the guide rail 3 and its vicinity are made the fiber-containing sealing layer 2c, and the others are made the supporting plate 2b, but for example, FIG. 5 The sealing member 2B shown may also have: a reinforcing plate 2f, which is composed of a resin plate or a metal plate in order to maintain the shape; and a fiber-containing sealing layer 2c, so as to cover the entire surface of the reinforcing plate 2f The attachment is composed of fibers impregnated with rubber or resin. This sealing member 2B also has the same protrusions 2d and 2e and through holes 20 as the sealing member 2 shown in FIG. 3. In the example shown in FIG. 5, the fiber-containing sealing layer 2c covers the entire reinforcing plate 2f, but at least the sliding part 2a that is slidably connected to the guide rail 3 is made of the fiber-containing sealing layer 2c. The sliding portion 2c may be formed of materials other than the fiber-containing sealing layer 2c, for example, rubber, resin, or metal that does not contain fiber. According to this sealing member 2B, the shape of the fiber-containing sealing layer 2c can be maintained by the reinforcing plate 2f, and in particular, the shape of the sliding portion 2a can be maintained, and stable sealing performance can be expected.

In addition, in the above-mentioned second embodiment, although the sealing member 2A has a laminated structure including the first layer 21 to the third layer 23, it may be omitted when there is a supply of lubricant from other places. The third layer 23 made of felt or foamed material.

In addition, in the above-mentioned second embodiment, as the sealing member 2A, the area layer first layer 21 on one side of the second layer 22 and the third layer 23 on the other area layer of the second layer 22 are used as the sealing member 2A. The sealing member 2A is installed in such a manner that the first layer 21, the second layer 22, and the third layer 23 are arranged in the order from the side close to the slider 5. However, each layer in the sealing member 2A is laminated The order is not limited by this. For example, it may be arranged in the order of the second layer 22, the first layer 21, and the third layer 23 from the side approaching the slider 5; it may also be arranged in the order of the third layer 23, the third layer 23 and the third layer from the side approaching the slider 5. The two layers 22 and the first layer 21 are arranged in this order; the third layer 23, the first layer 21, and the second layer 22 may be arranged in the order from the side closer to the slider 5.

2‧‧‧Sealing structure

2a‧‧‧Sliding joint

2b‧‧‧Support board

2c‧‧‧Fiber-containing sealing layer (fiber impregnated with rubber or resin)

2d、2e‧‧‧Protrusion

3‧‧‧Guide rail

6, 8‧‧‧Rotating groove of the rail side rotating body

20‧‧‧Through hole

Claims (4)

A sealing member for a linear slide rail, the linear slide rail has a guide rail and a sliding member movably embedded on the guide rail via a rotating body, the sealing member is installed on the linear slide rail The sliding member seals the opening of the gap between the guide rail and the sliding member; in the sealing member, the sliding part that slidably contacts the guide rail is because the fibers are impregnated with rubber to make the fibers adhere to each other It is composed of fibers that are neatly wound and have stretchability that can follow the shape of the guide rail side. A sealing member for a linear slide rail, the linear slide rail has a guide rail and a sliding member movably embedded on the guide rail via a rotating body, the sealing member is installed on the linear slide rail The sliding member seals the opening of the gap between the guide rail and the sliding member; the sealing member has a reinforcing plate and a fiber attached to the reinforcing plate and impregnated with rubber; the sealing member is The sliding part of the guide rail is formed by impregnating the fibers with rubber so that the fibers are entangled with each other and having stretchability that can follow the shape of the guide rail side. A sealing member for a linear slide rail, the linear slide rail has a guide rail and a sliding member movably embedded on the guide rail via a rotating body, the sealing member is installed on the linear slide rail slide The opening of the gap between the guide rail and the sliding member is sealed; the sealing member has a laminated structure, and the laminated structure contains rubber impregnated between the fibers so that the fibers are entangled with each other. The first layer composed of the elastic fibers that can follow the shape of the guide rail side and the second layer composed of the reinforcing plate; in the sealing member, the sliding part that slidably contacts the guide rail is also composed of the aforementioned Constructed by layered structure. The sealing member for linear slide rails as described in claim 3, wherein the laminated structure system further includes a third layer made of felt or foamed material; the sliding contact part slidingly connected to the guide rail is also further Consists of a laminated structure containing the third layer described above.

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