KR20220053169A - Rail assembly - Google Patents

Abstract

A rail assembly guiding linear movement of a moving objet comprises: a guide slit formed along a moving route of the moving object; a rail which includes a parallel slit support unit formed in a longitudinal direction on both sides of the guide slit; a moving unit which moves along the rail together with the moving object; a housing which is mounted on at least one end of both ends of the rail and provides a convex screen tape; and a scraper which fastens an end of the screen tape and the moving unit, and moves along the parallel slit support unit. The rail assembly continuously discharges foreign materials in a certain direction while preventing inflow of the foreign materials.

Description

rail assembly {RAIL ASSEMBLY}

The present invention relates to a rail, and more particularly, to a rail assembly that blocks the inflow of foreign substances and enables continuous discharge.

A moving object such as a car seat may move in a straight line along a predetermined path. Rails may be installed on the floor to move these moving objects. In general, such rails may be provided with guide slits that open upwards. However, foreign substances such as dust or garbage may be introduced into the rail through the guide slit, and the introduced foreign substances may interfere with smooth operation or cause unsanitary management.

Korean Patent Application Laid-Open No. 10-2010-0120768 discloses "a device for blocking foreign substances in a seat rail". In the foreign material inflow blocking device, the contents of blocking the guide slit of the rail cover with a screen member and protecting the rollers therein are described. However, while the screen member moves along the guide slit, foreign substances may be continuously introduced into the gap, but there is no solution to this.

In addition, since the screen member is provided as a flat plate, there is no function to guide foreign substances to a specific position, and there may be a case where the high heel enters the guide slit and does not fall out.

Japanese Patent Application Laid-Open No. 2001-001800 (published on January 1, 2001) discloses an installation structure of a vehicle seat. The above installation structure is also to prevent the intrusion of garbage into the rail. The slider moves along the rail and coil springs are wound around the front and rear ends of the slider to block the guide slit opened upward. can

However, the coil spring also only blocks the guide slit, and although the scraper has a function of scooping up foreign substances to the outside of the guide slit, it is also impossible to remove foreign substances that fall to the side of the scraper. Since it can flow into the slit, it cannot be a fundamental solution.

In addition, when a narrow object such as a high heel penetrates into the guide slit, the coil spring cannot provide an effective resistance force.

The present invention provides a rail assembly capable of continuously discharging foreign substances in a predetermined direction while guiding the linear movement of a moving object such as a sheet and blocking the inflow of foreign substances.

The present invention provides a rail assembly using a screen, in which moving parts and a screen are easily mounted.

The present invention provides a rail assembly capable of providing effective resistance even when a sharp object enters a guide slit by improving resistance to a vertical force applied to a screen.

According to an exemplary embodiment of the present invention for achieving the above-described objects of the present invention, the rail assembly for guiding the linear movement of the moving object includes a guide slit formed along the movement path of the moving object and a length at both sides of the guide slit. A rail including a parallel slit support formed in the direction, a moving part moving along the rail together with a moving object, a screen housing mounted on at least one of both ends of the rail and providing a screen tape having a convex cross-section, and an end of the screen tape and a scraper that binds the moving part and moves along the parallel slit support part.

Since the screen tape has a convex cross-section, foreign substances flowing into the guide slit are primarily blocked, and the foreign substances stagnated on the guide slit can be naturally induced to move to both sides of the screen tape.

And since the screen tape having an upwardly convex cross section is supported by the parallel slit support, it is possible to provide effective resistance to vertical force without buckling downward even when the screen tape is pressed from above.

To this end, the screen tape may be provided as a metal tape molded into a curved surface, and the scraper may include a convex upper surface corresponding to the shape of the screen tape.

By being provided as a metal tape, as well as being provided in a thin thickness, it is possible to provide an efficient normal force by dispersing the vertical force applied to the center to both sides.

The screen housing may include an opening formed at the front upper portion for the screen tape to enter and exit, and an internal partition wall formed inside the opening to form a dust discharge path to the lower portion of the opening and block the inside from the dust discharge path.

Therefore, foreign substances guided to both sides by the convex screen tape can move toward the screen housing along the scraper while the moving part moves along the rail. It does not enter, and before that, it can be discharged downward along the dust discharge path.

In addition, an internal partition wall is formed between the dust discharge path and the inside of the screen housing to define the dust discharge path and prevent foreign substances from being introduced into the housing.

In order to support the screen tape convex upward, the opening may be provided with a protruding stop protrusion so as to support the bottom surface of the screen tape. The stopper not only holds the screen tape firmly, but also allows the scraper to stop at the opening of the screen housing.

The stop protrusion can prevent the screen tape from entering the screen housing in a state in which the screen tape is not bound to the moving part or in an initial state, and can stably support the scraper in the process of binding the screen tape and the moving part.

The screen tape may be stored in a wound state inside the screen housing, and the screen housing may include a reel for winding the screen tape on an outer surface and a spring providing a force in a direction for winding the screen tape. A spring spring may be used as the spring, and the reel may be provided in the form of a bobbin inside the screen housing or may be provided in a fixed structure protruding from the inner wall of the screen housing.

The scraper includes a binding groove formed on the bottom surface, and the moving part includes an extended part including a binding protrusion corresponding to the binding groove, and the binding protrusion is bound to the binding groove while the moving part is in close contact with the scraper, so that the ends of the scraper and the screen tape may be easily initially mounted or bound to the moving part.

The rail assembly of the present invention can continuously discharge foreign substances from top to bottom, that is, in a certain direction, while guiding the linear movement of a moving object such as a sheet and blocking the inflow of foreign substances.

The rail assembly of the present invention is a rail assembly that blocks a guide slit with a screen, and it is easy to mount and separate the moving parts and the screen.

The rail assembly of the present invention can provide effective resistance even when a sharp or narrow object enters the guide slit by improving the resistance to the vertical force applied to the screen.

1 is a perspective view of a rail assembly according to an embodiment of the present invention.
Figure 2 is a front view for explaining the use of the rail assembly of Figure 1;
3 is an exploded view of the rail assembly of FIG. 1 ;
FIG. 4 is a cross-sectional view taken along line AA of the rail assembly of FIG. 1 ;
FIG. 5 is a cross-sectional view taken along line BB of the rail assembly of FIG. 1 ;
6 is a CC sectional view of the rail assembly of FIG. 1 ;
FIG. 7 is a cross-sectional view illustrating coupling between the screen tape and the moving part of the rail assembly of FIG. 1 .
8 is a perspective view illustrating a screen housing of the rail assembly of FIG. 1 .
9 is a perspective view of a rail assembly according to an embodiment of the present invention.
10 is a perspective view illustrating a screen housing of the rail assembly of FIG. 9 .
11 is a cross-sectional view illustrating a screen housing of the rail assembly of FIG. 9 .

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, but the present invention is not limited or limited by the embodiments. For reference, in the present description, the same numbers refer to substantially the same elements, and may be described by citing the contents described in other drawings under the above rules, and the contents determined to be obvious to those skilled in the art or repeated may be omitted.

Figure 1 is a perspective view of a rail assembly according to an embodiment of the present invention, Figure 2 is a front view for explaining the use of the rail assembly of Figure 1, Figure 3 is an exploded view of the rail assembly of Figure 1, Figure 4 is 1 is a cross-sectional view of the rail assembly A-A, FIG. 5 is a cross-section B-B of the rail assembly of FIG. 1, FIG. 6 is a cross-sectional view of the rail assembly of FIG. 1, and FIG. 7 is a cross-sectional view between the screen tape and the moving part of the rail assembly of FIG. It is a cross-sectional view for explaining the coupling.

1 to 7 , the rail assembly 100 is for guiding the linear movement of a moving object, and may be bound to a moving object such as a vehicle seat 10, and a guide slit ( 112) to prevent foreign substances falling to the floor from flowing into the rail.

For reference, in the present embodiment, the vehicle seat 10 is exemplified as a moving object, but in another embodiment, it may be used in combination with various moving objects in various sizes in various places such as homes, factories, and vehicles.

The rail assembly 100 includes a rail 110 having a guide slit 112 formed therein, a moving part 120 moving along the rail 110 , a screen housing 130 supplying a screen tape 140 , and a scraper 150 . may include

Specifically, the rail 110 includes a guide slit 112 formed in the longitudinal direction, and for this purpose, it may be formed as a U-shaped or C-shaped body with an open top as a whole. In this embodiment, the moving part 120 is partially accommodated and moved along the rail 110, but in some cases, wiring to be connected to the moving object 10 inside the rail 110, a wiring guide, etc. may be further added. there is.

In this embodiment, parallel slit support parts 114 formed in the longitudinal direction on both sides of the guide slit 112 may be provided. The parallel slit support 114 may be provided in the shape of a groove for accommodating both edges of the screen tape 140 or the scraper 150, but may alternatively be provided in the shape of a support jaw with an open top, and externally It may also be provided as a structure for supporting both edges of the screen tape and the scraper without distinction.

The moving part 120 may be slidably mounted inside the rail 110 . Although the moving unit 120 is provided in a cube shape in the present embodiment, it may have various shapes and connection structures corresponding to the moving objects to be coupled.

Extension parts 122 may be formed on the front and rear surfaces of the moving part 120 , and binding protrusions 124 may be formed upwards on the extension parts 122 , respectively. The binding protrusion 124 may include an inclined surface to facilitate entry into the front and rear, respectively, and, as will be described later, the bottom surface of the binding groove 154 of the scraper 150 fixed to the bottom surface of the end of the screen tape 140 . can be entered and bound.

A screen housing 130 may be provided at the front and rear ends of the rail 110 , respectively, and the screen housing 130 may provide a screen tape 140 capable of being bound to the moving unit 120 . In this embodiment, the screen tape 140 may be provided in a wound state inside the screen housing 130 , and the moving part 120 may block the guide slit 112 exposed as it moves along the rail 110 . So that the screen tape 140 can enter and exit the opening 132 of the screen housing 130 .

In this embodiment, the screen tape 140 is provided as a thin metal tape, and a coating such as nylon may be added to the surface thereof. Externally, the screen tape 140 may have a curved cross-section in a generally upwardly convex shape. Therefore, as shown in Fig. 4 (a), when a force to press the screen tape 140 between the guide slits 112 is generated, both ends are supported by the parallel slit support 114, so that the screen tape 140 is not buckling. It can support the pressing force.

In addition, as shown in (b) of FIG. 4 , when foreign substances such as dust accumulate on the screen tape 140 , the foreign substances can gradually move to both sides of the screen tape 140 , and the foreign substances naturally moving to both sides are shown in FIG. It can be moved by being pushed to either side by both ends of the illustrated scraper 150 .

When the screen tape 140 formed of a metal tape is wound in the screen housing 130 , it may be wound in a flattened state, and may be restored to its original convexly curved shape as it comes out of the opening 132 .

Referring to FIG. 7 , a process of binding the screen tape 140 to the moving unit 120 can be confirmed. The moving part 120 includes the extension part 122 in which the binding protrusion 124 is formed in front and back, and can move along the rail 110 .

In an initial state in which the screen tape 140 is not bound or in a separated state, the scraper 150 is fixed to the end of the screen tape 140 , and the inner end of the screen tape 140 is bound by a spring 160 . It can be moved in an inward winding direction.

Basically, the spring 160 may rotate the screen tape 140 to be wound inward, and the screen tape 140 may be provided on the outer surface of the reel protrusion formed inside the screen housing 130 in a wound state.

Referring to (a), the scraper 150 can be maintained in a state blocked by the opening 132 of the screen housing 130 , and a stop protrusion 139 is formed on the outer wall of the scraper 150 and the screen tape 140 . ) can be prevented from going into the inside of the screen housing 130 .

The moving part 120 can move to the screen housing 130 that is not yet coupled to the screen tape 140 on the opposite side, and the binding protrusion 124 of the moving part 120 touches the bottom of the scraper 150. It may be combined with the binding groove 154 by riding in.

And when the moving part 120 moves in the opposite direction, the extension part 122 and the scraper 150 of the moving part 120 can move together as long as they remain bound.

In this way, the moving unit 120 and the screen tape 140 can be easily bound by a simple operation of attaching and separating the moving unit 120 to and from the screen housing 130 .

The screen housing 130 is formed inside the opening 132 and the opening 132 formed in the front upper portion to allow the screen tape 140 to enter and exit to form a dust discharge path 134 to the lower portion of the opening 132 and discharge the dust. It may include an interior bulkhead 136 that blocks the interior 138 from the pathway 134 .

Foreign substances guided to both sides by the convexly curved screen tape 140 may move toward the screen housing 130 together with the scraper 150 in the process of the moving part 120 moving along the rail, and once the screen housing ( When the scraper 150 enters the opening 132 , the foreign material that has moved to 130 does not flow into the interior 138 of the screen housing 130 , but is blocked by the internal partition wall 136 before that, and thus the dust discharge path 134 . ) can be discharged downward.

The internal partition wall 136 is formed between the dust discharge path 134 and the interior 138 of the screen housing 130, and defines the dust discharge path 134 as well as the entry of foreign substances into the interior 138 of the housing. can prevent

In order to support the upwardly convex screen tape 140 , a stop protrusion 139 capable of supporting the bottom surface of the screen tape 140 may be formed in the opening 132 . The stop protrusion 139 can firmly support the screen tape 140 as well as, as shown in FIG. (132) can be prevented.

The screen tape 140 may be stored in a wound state inside the screen housing 130 , and the screen housing 130 has a reel for winding the screen tape 140 on the outer surface and a direction in which the screen tape 140 is wound. A spring 160 that provides rotational force may be built-in. Of course, the screen tape may be stored crumpled or bent without being wound around the reel, and may be provided to move to other parts such as rails.

However, when the tape is wound and stored using a spring or the like, it occupies a small volume and a continuous restoring force is provided by the spring to prevent lifting or loosening of the screen tape.

A spring 160 may be used as the spring 160 , and the reel may be provided in the form of a separate bobbin inside the screen housing 130 or as a fixed structure protruding from the inner wall of the screen housing.

Figure 9 is a perspective view of the rail assembly according to an embodiment of the present invention, Figure 10 is a perspective view for explaining the screen housing of the rail assembly of Figure 9, Figure 11 is for explaining the screen housing of the rail assembly of Figure 9 It is a cross section.

9 to 11 , the rail assembly 200 serves to guide the vehicle seat, and blocks the guide slit with the screen tape 240 to prevent foreign substances falling to the floor from flowing into the rail.

The moving unit 220 may include a plurality of mounting holes and the like corresponding to the actual vehicle seat, and the rail 210 , the moving unit 220 , the screen housing 230 , the screen tape 240 , and the scraper 250 . For a description of the above, reference may be made to the description of the above embodiment.

In FIG. 9 , the screen tape 240 and the scraper 250 are integrally formed, and are not yet bound to the moving unit 220 , and as shown in FIG. 7 , the moving unit 220 is connected to both ends of the rail 210 . By moving once in a row, the binding protrusion of the moving unit 220 and the binding groove of the scraper 250 can be coupled to each other.

The rail 210 includes a guide slit 212 formed in the longitudinal direction, and for this purpose, it may be formed as a U-shaped or C-shaped body with an open top as a whole. In this embodiment, the moving unit 220 is accommodated and moved along the rail 210 , and the moving unit 220 can move in a rolling motion using bearings or rollers inside the rail 210 , and is mounted on the vehicle seat. A wiring that can be connected to an installed driving motor or fan, etc., a wiring guide, etc. may be built-in together.

In this embodiment, the screen tape 240 is provided as a thin metal tape, and the screen tape 240 can be drawn out of the screen housing 230 by being wound or unwound inside the screen housing 230 . . Here again, the screen tape 240 may have a curved cross-section in a convex upward shape.

The screen housing 230 is formed inside the opening 232 and the opening 232 formed in the front upper portion to allow the screen tape 240 to enter and exit to form a dust discharge path 234 to the lower portion of the opening 232 and discharge the dust. It may include an interior bulkhead 236 blocking the interior from the path 234 .

Foreign substances that have moved to the screen housing 230 do not flow into the inside of the screen housing 230 when the scraper 250 enters the opening 232 , but are blocked by the internal partition wall 236 before that and the dust discharge path 234 . ) can be discharged downward.

The internal partition wall 236 is formed between the dust discharge path 234 and the interior 238 of the screen housing 230, and defines the dust discharge path 234 as well as the entry of foreign substances into the interior 238 of the housing. can prevent

A mainspring spring may be built into the screen housing 230 , and the reel may be provided in the form of a separate bobbin inside the screen housing 230 to rotate in a direction in which the tape is wound by the spring.

As described above, although described with reference to preferred embodiments of the present invention, those skilled in the art can variously modify and change the present invention without departing from the spirit and scope of the present invention as set forth in the claims below. You will understand that it can be done.

100: rail assembly 110: rail
120: moving unit 130: screen housing
140: screen tape 150: scraper
160: spring

Claims (6)

In the rail assembly for guiding the linear movement of a moving object,
a rail including a guide slit formed along a movement path of the moving object and parallel slit support portions formed in a longitudinal direction at both sides of the guide slit;
a moving unit moving along the rail together with the moving object;
a screen housing mounted on at least one of both ends of the rail and providing a screen tape having a convex cross-section;
and a scraper binding the end of the screen tape and the moving part and moving along the parallel slit support. According to claim 1,
The screen tape is provided as a metal tape molded into a curved surface, and the scraper includes a convex upper surface corresponding to the shape of the screen tape. According to claim 1,
The screen housing includes an opening formed in the front upper portion for the screen tape to enter and exit, and an internal partition wall formed inside the opening to form a dust discharge path to a lower portion of the opening and block the inside from the dust discharge path,
The rail assembly, characterized in that before the foreign material moved toward the screen housing by the scraper is introduced into the screen housing, it is discharged to the lower part of the rail assembly through the dust discharge path. 4. The method of claim 3,
The rail assembly according to claim 1, wherein a stop protrusion supporting the bottom surface of the screen tape in the opening and stopping the scraper with respect to the screen housing is formed. 4. The method of claim 3,
The screen tape is stored in a wound state inside the screen housing,
The screen housing includes a reel for winding the screen tape on an outer surface and a spring for providing a force in the winding direction of the screen tape. According to claim 1,
The scraper includes a binding groove formed on the bottom surface,
The moving part includes an extension including a binding protrusion corresponding to the binding groove,
The rail assembly, characterized in that the end portions of the scraper and the screen tape are bound to the moving part by binding the binding protrusion to the binding groove while the moving part is in close contact with the scraper.

Images