JP2013108345A - Rail type shading device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rail type shading device which can be stopped at a desired draw-out position, the rail type shading device having draw-out operation performed at an arbitrary part.SOLUTION: A rail type shading device comprises: rail units 1 having guide rails 12 extending in predetermined directions, respectively; a pair of installation units 2 each provided at one end side of each rail unit 1; a screen unit 3 having a take-up shaft 31 installed between the installation units 2 and a screen 32 having one end edge fixed to the take-up shaft 31 and the other end edge being provided with a grip bar 33; a runner unit 4 having an axle 41 inserted in the grip bar 33 and a pair of wheel bodies 42 fixed at both ends of the axle 41 such that they can roll along the guide rails 12, respectively, while engaging with the guide rails 12; and a resistance unit 5 provided in the grip bar 33 so as to cause friction between the grip bar 33 and the axle 41.

Description

  The present invention relates to a rail type shielding device in which a screen unit is guided and moved along a pair of rail units.

  For example, in a roll screen attached to a sunroof of an automobile, the screen has a fixed end fixed to a take-up roll and a free end located on the opposite side in the front-rear direction, and the free end is a grip bar. It is fixed to. Guide rails having guide grooves are provided on the left and right sides of the screen, and the left and right ends of the grip bar of the screen are fitted in the guide grooves of the guide rail. Accordingly, the screen can be fed out or wound up by sliding the grip bar along the guide groove. Further, in such a device, in order to appropriately adjust the shielding effect, the screen can be stopped at a desired feeding position by applying an urging force that antagonizes from both directions of the winding direction and the feeding direction to the grip bar. Some have a structure (see Patent Document 1).

Taiwan registered utility model No. M257288 specification

  However, in the rail-type screen device as in the above prior art, in order to smoothly slide the screen along the guide groove when the screen is extended or taken up, the grip bar is pulled by pulling the center portion of the grip bar. It is necessary to apply the force equally to the left and right sides.For example, if you pull the part away from the center part, the force applied to both sides becomes unbalanced, the grip bar becomes slanted, or it gets caught in the guide groove. There is a problem that it cannot move smoothly.

  Therefore, the present invention has an object to provide a rail-type shielding device that can stop at a desired deployed position and that can be extended or taken up not only at the center portion of the grip bar but also at an arbitrary portion. To do.

In order to achieve the above object, the present invention provides:
A pair of rail units each having a guide rail extending in a predetermined direction and parallel to each other at a predetermined interval;
A pair of mounting units respectively provided on one end side of each rail unit;
A winding shaft that is rotatably mounted between the mounting units and extends in a direction perpendicular to the guide rail, and one end edge of the winding shaft so that the winding shaft can be wound or unwound by the winding shaft A screen unit having a screen fixed to the winding shaft, and a grip bar provided at the other end of the screen and extending in a direction parallel to the winding shaft;
An axle that is rotatably inserted in the grip bar so as to extend in a direction parallel to the winding shaft, and both ends of the axle rotate and move along the guide rail while meshing with the guide rail. A runner unit having a pair of ring bodies fixed so as to be able to expand and store the screen by the rotational movement;
A resistance unit having a holder member provided on the grip bar so that a frictional resistance can be generated between the axle and the axle by contacting the axle;
A rail-type shielding device is provided.

  With the above configuration, the rail-type shielding device according to the present invention allows the wheels at both ends of the axle to roll along the guide rail in synchronization with each other by meshing the wheel and the guide rail. In addition, even if it is moved by holding the parts close to both ends, the axle does not become oblique, so that the screen can be extended or taken up at any part of the grip bar.

  In addition, since the grip bar is provided with a resistance unit that generates a frictional resistance with the axle, the grip bar can be stopped when the screen is at a desired deployment position.

It is a top view which shows preferable embodiment of the rail-type shielding apparatus which concerns on this invention. It is a fragmentary perspective view which shows the said embodiment. It is a partial disassembled perspective view which shows the said embodiment. It is a fragmentary sectional view showing the above-mentioned embodiment. It is a top view which shows the extended state in the rail type shielding apparatus of FIG.

  The rail-type shielding device of the present invention is attached to, for example, a window of a vehicle or a building to shield the light. However, the installation location and the installation direction are not limited to this.

  Hereinafter, the present invention will be described in detail with reference to the accompanying drawings by using preferred embodiments as examples.

  1-5 has shown one Embodiment of the rail-type shielding apparatus based on this invention.

  The rail-type shielding device according to the present invention includes a pair of rail units 1 and 1 that are parallel to each other at a predetermined interval, and a pair of attachment units 2 and 2 that are respectively provided on one end side of the pair of rail units 1 and 1. The screen unit 3 is provided so that one end edge is fixed between the pair of mounting units 2 and 2, and the other end edge of the screen unit 3 is inserted through the pair of rail units 1 and 1. The runner unit 4 and the resistance unit 5 provided on the screen unit 3 are provided.

  As shown in FIG. 2, each rail unit 1 has a guide rail 12 extending in a predetermined direction and a hollow guide frame 11 extending in parallel with the guide rail 12. The guide rail 12 is held inside the guide frame 11.

  The guide frame 11 includes a side wall 111 and an upper wall 112 and a lower wall 113 that extend from both ends of the side wall 111 toward the other rail unit 1 so as to be parallel to each other. 111, an upper wall 112, and a lower wall 113. A guide space 114 is defined inside the guide frame 11 by the side wall 111, the upper wall 112, and the lower wall 113, and the U-shaped openings formed by the guide frame 11 face each other between the rail units 1. ing.

  The guide rail 12 is a rack having a plurality of first teeth 121, 121... Whose upper surface is configured along the extending direction of the guide rail 12, and an upper wall 112 and a lower wall 113 inside the guide frame 11. Any one of them, specifically, it may be provided on the lower side during installation. Further, the guide rail 12 may be provided so as to be formed integrally with the guide frame 11. In the present embodiment, the guide rail 12 is laid on the inner side of the lower wall 113, that is, on the surface of the lower wall 113 facing the upper wall 112.

  The pair of attachment units 2 are for attaching the screen unit 3 to the installation location, and have attachment seats 21 provided on one end sides of the both guide rails 12, 12. In this embodiment, two mounting seats 21 are provided, one on each side of the guide rails 12 and 12, respectively, or alternatively, these two may be integrally formed to be one. Such a unit used for installing the screen is not the focus of the present invention, so further explanation is omitted.

  The screen unit 3 extends in a direction orthogonal to both the guide rails 12 and 12 and is wound around the winding shaft 31 and the winding shaft 31 that is rotatably spanned between the mounting seats 21. One end edge of the screen 32 is fixed to the take-up shaft 31 and the other end edge of the screen 32 is fixed so that the one end edge can be extended in a direction parallel to the take-up shaft 31. A hollow grip bar 33.

  Although not shown, the screen unit 3 further includes at least one elastic body for rotating the take-up shaft 31 in the direction in which the screen 32 is taken up. The other end is fixed to the winding shaft 31. As a result, the screen 32 is always pulled in the direction of being taken up by the take-up shaft 31 and is taken up by the take-up shaft 31 when no external force is applied. Since a winding mechanism using such an elastic body is widely used, further explanation is omitted here.

  The runner unit 4 is rotatably inserted into the grip bar 33 so as to extend in a direction parallel to the take-up shaft 31, and both ends of the axle 41 are engaged with the guide rails 12 respectively. A pair of ring bodies 42 fixed so as to be able to rotate and move along the guide rail 12.

  The ring body 42 is a cylindrical gear having a plurality of second teeth 421, 421... Configured so that the outer peripheral surface meshes with the plurality of first teeth 121, 121. By the above rotational movement, the runner unit 4 can move along the guide rail 12 so that the screen can be unfolded and stored. Further, as shown in the figure, the pair of left and right ring bodies 42 and 42 are sandwiched by the side walls 111 of the left and right guide frames 11 and 11 so as to be prevented from moving left and right during the rotational movement. Both of them do not fall off from the corresponding guide rail 12, hold the positive engagement between the ring body 42 and the guide rail 12, and can always roll both the ring bodies 42, 42 in synchronization.

  With such a configuration, when the grip bar 33 is moved in the extending direction of the guide rail 12, that is, in the deploying direction of the screen 32, the axle 41 rotates in the grip bar 33 and at the same time is fixed to the axle 41. Each ring body 42 that rolls rolls along the guide rail 12. At this time, the pair of wheel bodies 42 and 42 at both ends of the axle 41 are engaged with the first teeth 121 of the guide rails 12 between the side walls 111 of the left and right guide frames 11 and 11. However, since it rotates at every pitch without moving left and right, the rotation of both the left and right wheel bodies 42, 42 always synchronizes, so the axle 41 always keeps the direction orthogonal to the guide rail 12, without wobbling, It can move smoothly along the guide rail 12.

  As the ring body 42, for example, a ball or a wheel formed of a soft material such as silicon resin or rubber can be used. On the other hand, as the guide rail 12, for example, a plastic material that is harder than the material of the ring body 42 is used. Can do. In this way, the static frictional force between the guide rail 12 and the ring body 42 becomes relatively large, so that the meshing is stable and the sound generated when the ring body 42 rolls is reduced. Can be obtained. Naturally, on the contrary, a relatively hard material may be used for the ring body 42 and a relatively soft material may be used for the guide rail 12. In this way, the same effect can be obtained. However, the material mentioned above is an illustration, and this invention is not limited to this.

  The resistance unit 5 is for stopping the screen 32 at an arbitrary deployment position against an elastic body for rotating the winding shaft 31 so as to wind the screen 32. As shown, the holder member 51 provided on the grip bar 33 and the holder member 51 are fixed to the grip bar 33 so that a frictional resistance can be generated between the axle 41 and the axle 41 by contact with the axle 41. And a fastener 52 for the purpose.

  The holder member 51 is provided inside the grip bar 33 in the present embodiment, and is spaced from each other from both ends of the connection wall 512 so as to define an open space 513 together with the connection wall 512 and the connection wall 512. The holder walls 511 extending so as to face each other are formed in a U-shape.

  The open space 513 includes a penetrating part 514 that is located on the side close to the connecting wall 512 and through which the axle 41 is inserted, and an open part 515 that is located on the side far from the connecting wall 512 and does not pass through the axle 41. Contains.

  The cross-sectional shape of the penetrating part 514 corresponds to the cross-sectional shape of the axle 41 in order to allow the axle 41 to be inserted, and the distance between the two holder walls 511 in the opening part 515 is shorter than that in the penetrating part 514. As a result, the axle 41 is positioned at the through portion 514 so as to be sandwiched between the holder walls 511, and frictional resistance is generated between the axle 41 and the holder wall 511.

  In addition, screw holes 516 are provided at positions corresponding to the holder wall 511 on the side opposite to the connection wall 512 (that is, the opening portion 515 side) and the grip bar 33, and the fastener 52 is connected to the holder wall 511. Screwed into the screw hole 516. As a result, the holder member 51 can be fixed in the grip bar 33, and the position of the axle 41 with respect to the through portion 514 can be made more reliable.

  In this embodiment, one screw is used as the fastener 52, but the number of the fasteners 52 and the corresponding screw holes 516 is not limited thereto, and a plurality of screws 52 may be provided. In the present embodiment, the connecting wall 512 is disposed on the front side of the holder walls 511, that is, the developing direction side of the screen 32 on the holder walls 511, and the storage direction of the screen 32 on the rear side of the holder walls 511, that is, the holder walls 511. Although the screw holes 516 are respectively provided on the side, this arrangement may be reversed.

  Below, the operation | movement at the time of use in the rail-type shielding apparatus which concerns on this invention is demonstrated.

  The grip bar 33 is a position close to the take-up shaft 31, a storage position (FIG. 1) where almost the entire screen 32 is taken up by the take-up shaft 31, and a position away from the take-up shaft 31. The screen 32 can be moved by being pulled or pushed to an arbitrary position between the expanded position (FIG. 5) where the entire screen 32 is expanded.

  For example, when the screen 32 is drawn out, if the grip bar 33 is pulled from the storage position side toward the unfolded position side, the axle 41 and the ring body 42 move along the guide rail 12 as the grip bar 33 moves. At the same time, the screen 32 is unwound from the take-up shaft 31 and developed.

  On the contrary, when the screen 32 is wound, if the grip bar 33 is pushed from the unfolded position side toward the storage position side, the axle 41 and the ring body 42 are moved along the guide rail 12 as the grip bar 33 moves. At the same time, the screen 32 is wound around the winding shaft 31 and stored.

  In the process in which the screen 32 is drawn out and wound up as described above, the ring body 42 has the second teeth 421 between the left and right side walls 111 and the first teeth 121 of the guide rail 12. And the wheel body 42 is fixed to the axle 41, so that the axle 41 also rotates together with the wheel 42. At this time, the ring body 42 and the guide rail 12 are engaged with each other, and the rotation distances of the respective ring bodies 42 at both ends of the axle 41 are always synchronized, so that the movement distance is equal. Even if the operation is performed by holding only one of both ends, for example, not only in the vicinity of the center of 33, the wheel body 42 is not inclined and the axle 41 is inclined and caught. As a result, the grip bar 33 can be moved smoothly without being tilted during the movement, regardless of where the grip bar 33 is held.

  Further, as described above, the axle 41 is inserted through the holder member 51 and is in contact with the holder wall 511, and the fastener 52 is screwed into the screw hole 516 of the holder wall 511. In order to rotate 41, it is necessary to apply a force larger than the frictional force between the axle 41 and the holder wall 511. Therefore, when the grip bar 33 is moved and the screen 32 is expanded or stored, the grip bar 33 can be held at a desired position by the above-described frictional force, thereby holding the screen 32 at a desired feeding position. be able to. Note that the winding mechanism using the elastic body described above is configured such that the winding force is smaller than the frictional force by the resistance unit 5.

  Further, when the grip bar 33 is held at a desired position due to the engagement between the guide rail 12 and the ring body 42, the ring body 42 slides on the guide rail 12 and the grip bar 33 moves. Can be prevented.

  In summary, the rail-type shielding device according to the present invention is configured so that the axle body 41 and the ring body 42 are fixed, and the ring body 42 and the guide rail 12 are engaged with each other. When rolling along the guide rail 12, the wheel bodies 42 at both ends of the axle 41 can always roll in synchronization, so that the screen can be extended or taken up at any part of the grip bar 33. it can.

  In addition, since the resistance unit 5 including the holder member 51 that generates a frictional resistance with the axle 41 is provided, the grip bar 33 can be fastened when the screen 32 is at a desired feeding position.

  As mentioned above, although preferable embodiment of this invention was described, this invention is not limited to this, It cannot be overemphasized that it can change variously in the range which does not deviate from the summary.

1 rail unit 11 guide frame 111 side wall 112 upper wall 113 lower wall 114 guide space 12 guide rail 121 first tooth 2 mounting unit 21 mounting seat 3 screen unit 31 take-up shaft 32 screen 33 grip bar 4 runner unit 41 axle 42 wheel Body 421 Second tooth 5 Resistance unit 51 Holder member 511 Holder wall 512 Connection wall 513 Open space 514 Through portion 515 Open portion 516 Screw hole 52 Fastener

Claims (5)

A pair of rail units each having a guide rail extending in a predetermined direction and parallel to each other at a predetermined interval;
A pair of mounting units respectively provided on one end side of each rail unit;
A winding shaft that is rotatably mounted between the mounting units and extends in a direction perpendicular to the guide rail, and one end edge of the winding shaft so that the winding shaft can be wound or unwound by the winding shaft A screen unit having a screen fixed to the winding shaft, and a grip bar provided at the other end of the screen and extending in a direction parallel to the winding shaft;
An axle that is rotatably inserted in the grip bar so as to extend in a direction parallel to the winding shaft, and both ends of the axle rotate and move along the guide rail while meshing with the guide rail. A runner unit having a pair of ring bodies fixed so as to be capable of expanding and storing the screen by the rotational movement;
A resistance unit having a holder member provided on the grip bar so that a frictional resistance can be generated between the axle and the axle by contacting the axle;
A rail-type shielding device comprising: Each of the guide rails of the pair of rail units is a rack having a plurality of first teeth each having an upper surface configured along the extending direction of the guide rails.
2. The rail according to claim 1, wherein each of the pair of ring bodies is a cylindrical gear having a plurality of second teeth configured such that an outer peripheral surface thereof meshes with the plurality of first teeth. Type shielding device. The pair of rail units includes a pair of guide frames each having a side wall and an upper wall and a lower wall extending from the upper and lower ends of the side wall toward the other rail unit so as to be parallel to each other. With
Each of the guide rails of the pair of rail units is provided inside the pair of guide frames,
3. The rail according to claim 1, wherein the pair of ring bodies are sandwiched between the side walls of the pair of guide frames so as to be prevented from moving to the left and right during rotational movement. 4. Type shielding device. The holder member includes a connection wall, and holder walls extended to face each other at an interval from both ends of the connection wall so as to define an open space together with the connection wall, The open space is located on a side close to the connecting wall and includes a through portion through which the axle passes, and an open portion located on a side far from the connecting wall and through which the axle does not pass. The rail-type shielding apparatus as described in any one of 1-3. The grip bar is a hollow body, the holder member is provided in the grip bar, and the resistance unit further includes a fastener for fixing the holder member to the grip bar. 5. The rail type according to claim 4, wherein the fastener is screwed so as to pass through the grip bar and a side of the holder wall opposite to the connecting wall side. Shielding device.