JP5971951B2 - Winding roller control device for light shielding curtain - Google Patents

Description

  The present invention relates to a control device, and more particularly to a device that controls the rotation of a winding roller for a light shielding curtain.

  2. Description of the Related Art Conventionally, a light-shielding curtain as a light-shielding device used indoors generally includes a winding roller, a light-shielding material suspended from the winding roller, and a string or chain that is wound around one end of the winding roller and hangs down. These strings or chains are means for controlling the raising and lowering of the light shielding material. By pulling the string or chain and rotating the take-up roller, the light shielding material is wound up or fed out to raise or lower the light shielding material. Yes.

  However, there is a risk that the hanging string or chain may wrap around the child's neck or limbs and lead to an unexpected accident, for example, in a place where a young child is present. In view of this, there has been proposed a light-shielding curtain in which a string or chain for controlling the take-up roller is replaced with a rod-like one for safety (see, for example, Patent Document 1 or 2).

  This uses a shaft instead of a string as a roller control device, the upper end of the shaft is connected to the winding roller side and hangs down.When the shaft is rotated with the vertical axis as the rotation axis, the angle of the rotation axis is changed. Since the rotation transmission mechanism capable of converting from the vertical axis to the horizontal axis is interposed, the take-up roller rotates around the horizontal axis and the light shielding material can be taken up.

  In order to make the shaft easier to rotate, a handle that extends from the lower end of the shaft and bends twice at a right angle and is formed in a substantially N-shape is attached to the lower end of the shaft via a hinge. This makes it easier to rotate the shaft.

US Patent Application Publication No. 2011/0186246 European Patent Application Publication No. 2369123

  However, in the above roller control device, if the handle for turning the shaft is made small, a large force is required for the rotation and it becomes difficult to control, and if it is made large, it can be turned even with a small force, but the rotation trajectory becomes large. It becomes difficult to control.

  As described above, the roller control device including the shaft and the handle for rotating the shaft is inefficient in controlling the rotation of the roller, both of which are large and small. there were.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a light-shielding curtain winding roller control device with improved transmission efficiency, smooth rotation, and simple structure.

  The present invention uses the following means in order to achieve the above object.

That is, the winding roller control device for a light-shielding curtain of the present invention is
A device for controlling rotation of the take-up roller in a light-shielding curtain provided with a take-up roller that rotates around a horizontal axis on which the head rail extends as a rotation axis and can wind up or feed out the light shielding material,
When coupled to the take-up roller, a spiral shaft extending along a vertical axis intersecting the horizontal axis, a sleeve shell surrounding the spiral shaft, a bearing provided in the sleeve shell, and the bearing It is comprised from the transmission member provided in the inside, and the rotation stop means provided over the said sleeve shell and the said bearing.

  The spiral shaft has a shaft end that can be coupled to the take-up roller side so that the take-up roller can be driven to rotate about the horizontal axis as the rotation axis when rotated with the vertical axis as the rotation axis. And a shaft body extending from the end of the shaft, and a thread groove is provided on the outer peripheral surface of the shaft body.

  The sleeve shell has a first end wall and a second end wall at both ends extending along the vertical axis, respectively, and a first peripheral wall adjacent to the first end wall and the second end wall. A second peripheral wall adjacent to the end wall of the sleeve, and surrounds the spiral shaft and is rotatably arranged so as to define a space inside the sleeve shell between the sleeve shell and the spiral shaft. .

  The bearing has an annular base wall that surrounds the shaft body of the spiral shaft, and an annular passive wall that surrounds the annular base wall, and the annular passive wall is at one end extending along the vertical axis. The bearing has a first passive end and a second passive end at the other end, and the bearing is configured such that the sleeve shell is subjected to external force along the vertical axis in the sleeve shell inner space. A lowering position where the first end wall and the first passive end are brought into contact with each other by being lowered; and the second passive end when the sleeve shell is raised by applying a force from the outside. It arrange | positions so that it can reciprocate between the pushing-up position which is a position where the said 2nd end wall contact | abuts.

The transmission member is supported on the annular base wall and is fitted in the screw groove,
The rotation stopping means is provided over the first peripheral wall and the annular passive wall so as to prevent the bearing from rotating with respect to the sleeve shell.

  By the above means, when the bearing is in the lowered position, rotation of the bearing relative to the sleeve shell is prevented, so that a force applied to the sleeve shell along the vertical axis causes the annular passive wall to It is transmitted to move along the vertical axis, and the spiral shaft rotates about the vertical axis by the fitting of the transmission member and the thread groove, and thereby the light shielding material can be taken up. .

  According to the above configuration, since the transmission member is fitted in the thread groove of the spiral shaft so as to be able to roll, the simple operation of pulling down and pushing up the sleeve attached to the spiral shaft can be performed with the spiral shaft. The take-up roller connected thereto can be quickly rotated, whereby the light shielding material can be taken up smoothly.

It is a perspective view showing one embodiment of a control device concerning the present invention. It is a disassembled perspective view of the control apparatus which concerns on this invention. It is sectional drawing of the axial direction which shows the state by which the control apparatus which concerns on this invention is pushed up. It is sectional drawing of the axial direction which shows the state by which the control apparatus which concerns on this invention is pulled down. FIG. 5 is a cross-sectional view taken along line 5-5 of FIG. FIG. 6 is a cross-sectional view taken along line 6-6 of FIG.

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

  1 to 3 show an embodiment of a control device 10 according to the present invention.

  The light-shielding curtain 1 includes a head rail 11 extending along the horizontal axis L1, two shaft guides 12 (only one is shown in FIG. 1) that are arranged so as to protrude from the head rail 11 and be spaced apart from each other. The two rotary sleeves 13 (only one is shown in FIG. 1) arranged so as to be rotatable about the horizontal axis L1 between the two shaft guides 12 and fixed so as to be sandwiched between the two rotary sleeves 13. The winding roller 14 that can be rotated together with the winding roller 14, the light-shielding material 15 that is wound and fed as the winding roller 14 rotates by fixing one end of the winding roller 14, and the two rotating sleeves 13. One of the two is fixed at one end, extends along the horizontal axis L1, passes through the shaft guide 12, and then intersects the horizontal axis L1. And connecting means 16 which is formed to bend to L2, which is composed, the other end of the connecting means 16 can be connected to the control device 10 as a connection end 161.

  The control device 10 according to this embodiment rotates with the horizontal axis L1 on which the head rail 11 extends in this way as a rotation axis, and includes a take-up roller 14 that can take up and feed out the light shielding material 15. This device controls the rotation of the take-up roller 14 in the curtain.

  When the control device 10 is coupled to the winding roller 14, the control device 10 is connected to the connection end 161 of the connection means 16 and extends along the vertical axis L 2, the sleeve shell 3 surrounding the spiral shaft 2, and the sleeve shell 3 The bearing 4 provided in the bearing 4, the transmission member 42 provided in the bearing 4, and the rotation stopping means 7 provided between the sleeve shell 3 and the bearing 4.

  The sleeve shell 3 can be lowered and raised by being gripped by a user's hand, for example.

  The spiral shaft 2 is provided with a helical thread groove 21 on the outer peripheral surface, and has a shaft end 22 connected to the connection end 161 of the connection means 16 at the upper end, and a shaft body 24 extending from the shaft end 22. Then, it is suspended along the vertical axis L2, and can be rotated using the vertical axis L2 as a rotation axis. Here, the connecting means 16 may be any means that can convert a force for rotating the spiral shaft 2 into a driving force for rotating the take-up roller 14. For example, various connecting mechanisms such as shaft couplings or gears may be used. You may use. As a result, when the spiral shaft 2 is rotated about the vertical axis L2, the take-up roller 14 is driven to rotate about the horizontal axis L1.

  The sleeve shell 3 has a first housing portion 31 and a second housing portion 33 that are formed in a hollow hemispherical shape each having an opening. Each of the first housing portion 31 and the second housing portion 33 is provided with a spline structure, and is configured so as to form one hollow sphere when the openings are connected together by this spline structure. Has been. Here, as the spline structure, for example, as in the present embodiment, the plurality of protrusions 335 correspond to the second casing portion 33, and the shape, position, and quantity correspond to the protrusions 335 in the first casing portion 31. Protrusion receiving holes 315 are provided so that the first and second housing portions 31 and 33 extend perpendicularly to the surfaces that abut each other when the openings of the first and second casing portions 31 and 33 form a single spherical shape. When inserted into the receiving hole 315, the first housing portion 31 and the second housing portion 33 may be engaged with each other and fixed.

  When the first housing portion 31 and the second housing portion 33 are thus connected, the sleeve shell 3 is formed in a hollow spherical shape.

  Further, the first housing portion 31 constituting the sleeve shell 3 includes the first peripheral wall 312 and the first end wall 311, and the second housing portion 33 includes the second peripheral wall 332 and the second peripheral wall 311. Each has an end wall 331. The first and second peripheral walls 312 and 332 are truncated semicircles extending in an arc shape correspondingly along the vertical axis L2 from the surface where the first and second housing portions 31 and 33 are in contact with each other. The first and second end walls 311 and 331 are spherical walls, and the upper and lower ends where the first and second peripheral walls 312 and 332 extend from each other further extend toward the vertical axis L2. It is the wall formed in. In other words, the sleeve shell 3 has a first end wall 311 and a second end wall 331 at both ends extending along the vertical axis L2, respectively, and the sleeve shell 3 further includes a first end wall. A first peripheral wall 312 adjacent to the wall 311 is formed, and a second peripheral wall 332 adjacent to the second end wall 331 is formed. Further, a first guide hole 314 is formed in the first end wall 311, and a second guide hole 334 is provided in the center of the second end wall 331, and these guide holes 314, 334 are passed through the respective centers. The spiral shaft 2 is passed through the sleeve shell 3 via the via.

  Thus, the sleeve shell 3 is penetrated by the spiral shaft 2 along the vertical axis L2, that is, the sleeve shell 3 surrounds the spiral shaft 2 and is rotatable with respect to each other. A sleeve shell inner space 32 is defined between the inner peripheral surface of the sleeve shell 3 and the spiral shaft 2.

  The bearing 4 is disposed in the sleeve shell inner space 32 through the spiral shaft 2 so as to be rotatable and vertically movable, and includes a base portion 410 and a cover portion 411.

  The base portion 410 has an annular base wall 416 extending along the extending direction of the spiral shaft 2, that is, along the vertical axis L 2 so as to surround the shaft body 24 of the spiral shaft 2. A transmission member receiving notch 419 that opens and receives the transmission member 42 so that the transmission member 42 can rotate is partially in the direction from one end (the upper end in the drawing) to the other end of the annular base wall 416 so as to be spaced apart from each other at equal intervals. It is provided as if cut. The number of transmission member receiving notches 419 corresponds to the number of transmission members 42.

  The cover portion 411 includes an annular passive wall 412 extending longer than the annular base wall 416 along the extending direction of the spiral shaft 2, that is, the vertical axis L <b> 2 so as to surround the annular base wall 416, and the annular passive wall 412. And an inward flange 413 formed in an annular shape so as to extend from one end (the upper end in the drawing) toward the vertical axis L2. In addition, the annular passive wall 412 has a first passive end 4121 at one end (upper end in the drawing) and a second passive end 4122 at the other end (lower end in the drawing). The first passive end 4121 is provided so as to extend inward from the periphery of the first passive end 4121 and to support the transmission member 42 in cooperation with the transmission member receiving notch 419.

  Moreover, the cover part 411 is being fixed to the base part 410 by the spline structure so that the base part 410 may be covered. More specifically, the annular passive wall 412 of the cover portion 411 and the annular base wall 416 of the base portion 410 are combined with each other by a spline structure. Here, the spline structure is an annular passive wall in this embodiment. The spline groove 415 is provided in the reference numeral 412 and the spline protrusion 417 is provided in the annular base wall 416 to be fitted to each other and fixed. However, the spline structure is not limited to this, and the cover part 411 and the base part 410 may be fixed. do it.

  Further, since the bearing 4 is only penetrated through the spiral shaft 2 and is not fixed, in the sleeve shell inner space 32, it is between the pushed-up position (position in FIG. 3) and the lowered position (position in FIG. 4). Can move along the spiral shaft 2, that is, along the vertical axis L2. Here, the pushed-up position refers to a position where the lower end of the bearing 4 and the sleeve shell 3 come into contact with each other when the sleeve shell 3 is lifted upward by applying a force from the outside, that is, the second passive end 4122 and the second passive end 4122. The position where the end wall 331 comes into contact refers to the position where the sleeve shell 3 is lowered downward by applying a force from the outside, that is, the position where the upper end of the bearing 4 and the sleeve shell 3 come into contact. The first passive end 4121 and the first end wall 311 are in contact with each other.

  The transmission member 42 uses a plurality of (four in this embodiment) spheres. The transmission member 42 is supported on the annular base wall 416 of the base portion 410 and is fitted in the screw groove 21. More specifically, each transmission member 42 is rotatably fitted in each transmission member receiving notch 419 provided on the annular base wall 416 and is in contact with the screw groove 21 so as to roll relative to the screw groove 21. doing. Thus, the transmission member 42 is arranged between the inward flange 413 and the transmission member receiving notch 419 in the direction parallel to the vertical axis L2, and in the direction parallel to the horizontal axis L1, the annular passive wall 412 of the cover portion 411 and the spiral shaft. The two screw grooves 21 are rotatably held.

  As described above, in this embodiment, the transmission member 42 is a sphere that can roll with respect to the spiral shaft 2. However, as another form, the transmission member 42 and the bearing 4 may be formed integrally. .

  The rotation stopping means 7 is provided between the first peripheral wall 312 and the annular passive wall 412 so that the rotation of the bearing 4 with respect to the sleeve shell 3 can be stopped when the bearing 4 is in the lowered position. More specifically, the rotation preventing means 7 includes a plurality of rod-shaped protrusions 313 provided so as to protrude inward from the inner peripheral surface of the first peripheral wall 312 in the first housing portion 31, and the rod-shaped protrusions 313. A plurality of anti-rotation protrusions 414 provided so as to protrude from the outer peripheral surface of the annular passive wall 412 of the cover portion 411 in the circumferential direction about the vertical axis L2 so as to be engaged and braked. 4 and 5, when the bearing 4 is in the lowered position, the protrusions 313 and 414 can be engaged to prevent the bearing 4 from rotating relative to the sleeve shell 3.

  With the above structure, when the bearing 4 is in the lowered position, rotation of the bearing 4 with respect to the sleeve shell 3 is prevented. Therefore, when a force is applied downward from the outside along the vertical axis L2 to the sleeve shell 3, Since the passive wall 412 is in contact with the first end wall 311, the annular passive wall 412 is moved along the vertical axis L <b> 2, and this force is further transmitted to the transmission member 42, and the transmission member 42 and the screw groove 21. , The spiral shaft 2 rotates about the vertical axis L2, and the light shielding material 15 can be taken up.

  Hereinafter, a mechanism for winding the light shielding material 15 using the control device 10 of the present invention will be described in more detail. As shown in FIGS. 2, 4, and 5, when an external force is continuously applied to the sleeve shell 3 in the direction of the free end of the spiral shaft 2, that is, downward in the drawing, the sleeve 2 is provided in the sleeve shell 3. The bearing 4 also moves downward along the spiral shaft 2 together with the sleeve shell 3. At this time, since the transmission member 42 and the screw groove 21 of the spiral shaft 2 are fitted, the transmission member 42 rolls along the spiral defined by the screw groove 21. As a result, a rotational force is generated on the bearing 4, but the rotation of the bearing 4 is further transmitted to the sleeve shell 3 because the rotation is prevented by the rotation stop means 7. However, since the sleeve shell 3 is gripped by the user, it cannot be rotated. Therefore, this rotational force leads to the rotation of the spiral shaft 2 (clockwise rotation in this embodiment). Then, the rotation of the spiral shaft 2 is transmitted to the take-up roller 14, and the take-up roller 14 can be rotated. With the above-described mechanism, it is possible to rotate the winding roller 14 by pulling down the sleeve shell 3 and wind the light shielding material 15. Further, when the sleeve shell 3 is lowered to a height that is difficult for the user to operate before the winding roller 14 finishes winding the light shielding material 15, the sleeve shell 3 is removed to continue the winding operation of the light shielding material 15. It can be returned to a high position again. As shown in FIGS. 3 and 6, for example, when the sleeve shell 3 is moved upward by a user's hand, the bearing 4 is moved to the pushed-up position accordingly. When a force toward the connection end of the spiral shaft 2, that is, upward in the drawing, is further continuously applied to the sleeve shell 3, the bearing 4 provided in the sleeve shell 3 also has a lower end of the sleeve shell 3, that is, a second It moves upward along the spiral shaft 2 together with the sleeve shell 3 so as to be pushed up by the end wall 331. At this time, since the transmission member 42 and the screw groove 21 of the spiral shaft 2 are fitted, the transmission member 42 rolls along the spiral defined by the screw groove 21, thereby rotating the bearing 4. Is born. The anti-rotation means 7 is only provided in the first casing portion 31 and not in the second casing portion 32. Therefore, when the bearing 4 is in the pushed-up position, only the bearing 4 rotates. However, the spiral shaft 2 does not rotate.

  As described above, when the sleeve shell 3 is raised, the bearing 4 rotates, so that the sleeve shell 3 can be returned to a high position without rotating the spiral shaft 2. Thereafter, by lowering the sleeve shell 3 again, the spiral shaft 2 can be continuously rotated only in the same direction, whereby the light shielding material 15 can be continuously and quickly wound up.

  On the contrary, when it is desired to feed out the light shielding material 15, that is, when it is desired to feed out the light shielding material 15 from the take-up roller 14, the direction opposite to that when the spiral shaft 2 is rotated by the operation of the sleeve shell 3 (in this embodiment, counterclockwise). It may be manually turned directly in the rotation). At this time, the user can easily rotate the spiral shaft 2 with the help of the weight of the light shielding material 15.

  As described above, the control device 10 according to the present invention has a simple structure, and can smoothly wind the light shielding material with an easy operation, and is particularly suitable for winding a longer light shielding material.

  Although the present invention has been described in detail according to specific embodiments, the present invention is not limited to the above-described embodiments and accompanying drawings, and covers various modifications included in the widest scope of interpretation. It should be understood that it is intended.

  The light-shielding curtain winding roller control device according to the present invention is a device that controls the winding-up of the light-shielding curtain such as a so-called roll screen because the winding roller can be quickly rotated by a simple operation to smoothly wind up the light-shielding material. Can be used as

DESCRIPTION OF SYMBOLS 1 Light shielding curtain 10 Control apparatus 11 Head rail 12 Shaft guide 13 Rotating sleeve 14 Winding roller 15 Light shielding material 16 Connection means 161 Connection end 2 Spiral shaft 21 Screw groove 22 Shaft end 24 Shaft body 3 Sleeve shell 31 1st housing part 311 First end wall 312 First peripheral wall 313 Rod-like protrusion 314 First guide hole 315 Projection receiving hole 32 Sleeve shell inner space 33 Second housing portion 331 Second end wall 332 Second peripheral wall 334 Second Guide hole 335 Protrusion 4 Bearing 410 Base part 411 Cover part 412 Annular passive wall 4121 First passive end 4122 Second passive end 413 Inward flange 414 Anti-rotation protrusion 415 Spline groove 416 Annular base wall 417 Spline protrusion 419 Transmission member receiver Notch 42 Transmission member 7 Anti-rotation means L1 Horizontal L2 vertical axis

Claims (5)

A device for controlling rotation of the take-up roller in a light-shielding curtain provided with a take-up roller that rotates around a horizontal axis on which the head rail extends as a rotation axis and can wind up or feed out the light shielding material,
A spiral shaft that extends along a vertical axis that intersects the horizontal axis when connected to the take-up roller, a sleeve shell that surrounds the spiral shaft, a bearing provided in the sleeve shell, And a rotation stop means provided over the sleeve shell and the bearing.
The spiral shaft has a shaft end that can be coupled to the take-up roller side so that the take-up roller can be driven to rotate about the horizontal axis as the rotation axis when rotated with the vertical axis as the rotation axis. And a shaft body extending from the shaft end, the outer peripheral surface of the shaft body is provided with a thread groove,
The sleeve shell has a first end wall and a second end wall at both ends extending along the vertical axis, respectively, and a first peripheral wall adjacent to the first end wall and the second end wall. A second peripheral wall is formed adjacent to the end wall, and surrounds the spiral shaft so as to define a space inside the sleeve shell between the sleeve shell and the spiral shaft, and is rotatably disposed.
The bearing has a base portion having an annular base wall surrounding the shaft body of the spiral shaft, and a cover portion having an annular passive wall surrounding the annular base wall, the annular passive wall being the vertical axis. The bearing has a first passive end at one end and a second passive end at the other end, and the bearing is in the sleeve shell inner space along the vertical axis, and the sleeve shell is external. The pull-down position is a position where the first end wall and the first passive end come into contact with each other when the force is applied and lowered, and the sleeve shell is raised by applying force from the outside. It is arranged so that it can reciprocate between a second passive end and a push-up position where the second end wall abuts.
The transmission member is rotatably supported by a transmission member receiving notch provided to open upward in the annular base wall and rotatably receive the transmission member, and is capable of rolling with respect to the screw groove. The threaded groove is fitted in contact with the threaded groove, and the annular passive wall extends inward from a peripheral edge of the first passive end and cooperates with the transmission member receiving notch. And an inward flange for supporting the transmission member is provided,
The rotation stopping means is provided over the first peripheral wall and the annular passive wall so as to prevent rotation of the bearing with respect to the sleeve shell,
When the bearing is in the lowered position, rotation of the bearing relative to the sleeve shell is prevented so that a force applied to the sleeve shell along the vertical axis causes the annular passive wall to move along the vertical axis. The spiral shaft rotates about the vertical axis by the fitting of the transmission member and the thread groove, and thereby the light shielding material can be taken up.
A winding roller control device for a light-shielding curtain. The anti-rotation means is provided in a circumferential direction with the vertical axis as an axis so as to be engaged and braked by a plurality of rod-like protrusions projecting inward from the first peripheral wall. A plurality of anti-rotation protrusions,
When a force along the vertical axis is applied to the sleeve shell, the spiral shaft rotates about the vertical axis by preventing rotation of the bearing with respect to the sleeve shell,
The winding roller control device for a light-shielding curtain according to claim 1 . The annular base wall of the base portion and the annular passive wall of the cover portion are combined with each other by a spline structure,
The winding roller control device for a light-shielding curtain according to claim 1 or 2 . The sleeve shell includes a first housing part having the first peripheral wall, and a second housing part having the second peripheral wall, and the first housing part and the second housing part. The housing part is combined with the spline structure,
The winding roller control device for a light-shielding curtain according to any one of claims 1 to 3 . In the first housing part and the second housing part, a first guide hole is provided in the first end wall, and a second guide hole is provided in the second end wall. The spiral shaft is passed through the first and second guide holes,
The winding roller control device for a light-shielding curtain according to claim 4 .