JP2010119805A - Curtain apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a curtain apparatus for automatically opening/closing a pair of right and left curtains via one driving device, and facilitating the mounting and phase-matching of the curtains. <P>SOLUTION: The curtain apparatus includes: rotary driving shafts 4; and sliding support members 8 to abut on the rotary driving shafts and slid. A center stop part without a ball screw part formed therein is arranged at the center of the rotary driving shafts. A ball screw part 4A in right hand threads is formed in one shaft part from the center stop part, and a ball screw part 4B in a left screw direction is formed in the other shaft part. Each sliding support member includes: a body shaft part 31 for storing and holding a ball to be engaged with the ball screw part; and a cap member 32 having a curtain support part. The respective sliding support members are arranged in the respective ball screw parts, and then, mounted onto respective upper parts at the front ends of the pair of right and left curtains respectively. The pair of right and left curtains are integrally opened/closed by the normal and reverse rotation of the rotary driving shafts 4. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a curtain device, and more particularly to a curtain device capable of automatically opening and closing a curtain.

  Conventionally, a curtain is configured such that a curtain runner is slidably mounted on a curtain rail, a curtain hook for hanging the curtain is hooked on the curtain runner, and an end of the curtain is picked and opened.

  Also, if two curtains are symmetrically arranged on one curtain rail, each person manually opens and closes each curtain to open and close the curtain from a remote location. Can't do it.

For this purpose, it is desired to be able to open and close the curtain by remote control using an electric motor. A curtain hook is attached to a nut member that moves back and forth by rotating the feed ball screw member forward and backward. An electric curtain device that opens and closes has already been filed (for example, see Patent Document 1).
Japanese Patent Laid-Open No. 10-192130

  However, since the curtain is not only automatically opened and closed, but often manually opened and closed, it is preferable that the curtain can be easily opened and closed manually. Further, a general residential curtain is a double-open curtain, and a pair of two curtains is configured to open and close from an intermediate portion thereof. Since the electric curtain device described in Patent Document 1 is an automatic opening / closing device for one-sided opening, in order to cope with a double-opening curtain using this device, an electric curtain device is installed in each of a pair of two curtains. This is not preferable because it is necessary and the cost is increased.

  In addition, if the pair of two curtains is configured to be opened and closed by a single electric device, it is important to have a configuration in which the curtain is accurately opened and closed at an intermediate butting portion.

  Therefore, when automatically opening and closing the pair of left and right curtains, it is important to facilitate the manual movement of the respective curtains and to facilitate the phase adjustment and the opening and closing operation of the respective left and right curtains.

  In view of the above problems, an object of the present invention is to provide a curtain device that automatically opens and closes a pair of left and right curtains via a single drive device, and facilitates curtain mounting and phase alignment.

  In order to solve the above-described problems, the present invention provides an outer cylinder having an opening groove portion that constitutes a curtain rail, a rotary drive shaft that is housed along the axial direction inside the outer cylinder, and is rotatably supported. A sliding support member that abuts on the rotational drive shaft and slides along the opening groove portion is provided, and a central stop portion in which a ball screw portion is not formed is provided at the central portion of the rotational drive shaft. A ball screw portion in the right screw direction is formed on one shaft portion, and a ball screw portion in the left screw direction is formed on the other shaft portion, and the ball that engages with the ball screw portion is accommodated in the sliding support member. A main body shaft portion to be held and a cap member having a curtain support portion are provided, and the slide support members are disposed on the respective ball screw portions, respectively, and are respectively disposed on upper ends of the pair of left and right curtains. The above-mentioned sliding support member is mounted and the front The rotary drive shaft is rotated in the forward direction and simultaneously moved in the direction to close the pair of left and right curtains to close the curtain, and the rotary drive shaft is rotated in the reverse direction and simultaneously moved in the direction to open the pair of left and right curtains. The curtain is opened, and the pair of left and right curtains are integrally opened and closed.

  According to this configuration, since the sliding support member reciprocates as the rotation drive shaft rotates forward and backward, each curtain hook is attached to the curtain support portion of the sliding support member, and one drive device is used. A pair of left and right curtains can be automatically opened and closed.

  According to the present invention, in the curtain device configured as described above, the sliding support member applies an urging spring that presses the ball against the ball screw portion against the main body shaft portion, and the urging spring applies an urging force to the ball. It is characterized by having a cap member stored in the position. According to this configuration, it is possible to apply an urging force to the ball so that the sliding support member slides easily and reliably according to the rotation of the rotary drive shaft.

  According to the present invention, in the curtain device configured as described above, a curtain hook mounting hole serving as a curtain support portion is provided in the cap member. According to this configuration, the curtain can be easily mounted on the sliding support member by hooking the curtain hook on the curtain hook mounting hole of the cap member.

  According to the present invention, in the curtain device configured as described above, the height of engagement between the ball screw portion and the ball, the length of the biasing spring, and the spring force are such that the sliding support member can be slid by human power. It is characterized by that. According to this configuration, since the curtain can be easily slid manually by a person, manual operation of the curtain can be easily performed.

  According to the present invention, in the curtain device configured as described above, when the sliding movement of the sliding support member is stopped during the rotation of the rotary drive shaft, the accommodated ball is idled around the ball screw portion. It is a feature. According to this configuration, even when one curtain reaches the moving end during the automatic opening / closing operation of the curtain, the ball can idle and stop at that position.

  According to the present invention, in the curtain device configured as described above, when the drive device includes a drive motor capable of forward and reverse rotation, and the load torque of the motor exceeds a predetermined safe torque threshold value, the safety torque threshold value is exceeded. Further, the rotation driving of the motor is stopped. According to this configuration, the driving device stops when an abnormal torque exceeding the threshold is applied, so that the driving device can be prevented from being damaged.

  Further, the present invention is characterized in that, in the curtain device configured as described above, a torque generated when the pair of left and right sliding support members stops and idles is used as the safety torque threshold value. According to this configuration, when the left and right curtains reach the moving end, the drive of the driving device is automatically stopped, and the fully closed state and the fully open state of the curtain can be easily achieved. For this reason, the phases of the left and right curtains can be easily matched.

  According to the present invention, in the curtain device configured as described above, a sliding roller is disposed on the main body shaft portion, and the sliding is performed along an inner wall portion of the outer cylinder or along a rail member mounted therein. The moving support member slides. According to this configuration, since the sliding support member that supports the curtain is easily slidable in the axial direction of the outer cylinder, the curtain can be automatically opened and closed using a driving device with a small driving force.

  According to the present invention, in the curtain device configured as described above, the outer cylinder is a cylinder, the support plates that rotatably support the rotary drive shaft are provided at both ends, and the drive device is attached to the support plate at one end. It is characterized by. According to this configuration, it is possible to obtain a curtain device that automatically opens and closes by attaching a curtain to a cylindrical curtain rail having a clean appearance.

  According to the present invention, in the curtain device having the above-described configuration, the outer cylinder is a square cylinder, a support plate that rotatably supports the rotary drive shaft is provided at both ends, and the drive device is attached to the support plate at one end. It is characterized by that. According to this configuration, it is possible to obtain an automatic opening / closing curtain device suitable for an interior in which a square is preferred.

  According to the present invention, in the curtain device configured as described above, the drive device is provided with a communication function means to automatically open and close the curtain by remote control. According to this configuration, not only a person who is indoors but also a person who is outdoors can automatically open and close the curtain by remote control.

  According to the present invention, an outer cylinder having an opening groove portion that constitutes a curtain rail, a rotary drive shaft that is housed along the axial direction of the outer cylinder and is rotatably supported, and the rotary drive shaft A sliding support member that is in contact with and slides along the opening groove is provided, and a central stopping portion that is not formed with a ball screw portion is provided at the central portion of the rotary drive shaft. A ball screw portion in the screw direction is formed, a ball screw portion in the left screw direction is formed on the other shaft portion, and each of the sliding support members is mounted on the upper end side of each pair of left and right curtains. The rotary drive shaft is rotated in the forward direction and simultaneously moved in the direction of closing the pair of left and right curtains to close the curtain, and the rotary drive shaft is rotated in the reverse direction and simultaneously opened in the direction of opening the pair of left and right curtains. Move and open the curtain, Since a structure for opening and closing together the numeric, and forward reverse rotation drive shaft via one of the drive unit can be a pair of left and right curtain automatically opened and closed.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic explanatory view showing the overall configuration of a curtain device according to the present invention. FIG. 2 is a schematic explanatory view showing a mounting state of the sliding support member. FIG. 3 is an enlarged explanatory view showing a central stop portion of the rotary drive shaft. Moreover, the same code | symbol is used about the same structural member, and detailed description is abbreviate | omitted suitably.

  As shown in FIG. 1, the curtain device 1 according to the present invention is provided with a rotation drive shaft 4 (4 </ b> A, 4 </ b> B) rotatably inside an outer cylinder 2 constituting a curtain rail. A sliding support member 8 that slides and moves accordingly is provided. In addition, the curtain 3 is configured to be opened and closed by hooking a curtain hook 9 at the moving side end of the curtain 3 (3A, 3B) on the sliding support member 8 capable of sliding movement.

  The outer cylinder 2 is formed with an opening groove 21 (see FIG. 2) constituting a curtain rail, and support plates 7A and 7B for rotatably supporting the rotary drive shaft 4 are attached to both ends. Further, the driving device 5 is attached to the support plate 7A at one end.

  The drive device 5 is a drive motor capable of forward and reverse rotation, and can be decelerated to an appropriate rotational speed via the deceleration coupling 6.

  As will be described later, the rotary drive shaft 4 is formed with a ball screw portion, and the sliding support member 8 includes a ball B that engages with the ball screw portion. Therefore, when the rotary drive shaft 4 is rotated, the ball B moves with the rotation of the ball screw portion, and the sliding support member 8 devised with a predetermined detent is reciprocated.

  When the curtain 3 is a single curtain and is in a single-open shape, the curtain 3 can be opened and closed by rotating the rotational drive shaft 4 having the same shape of the ball screw portion forward and reverse. However, when the curtain 3 is composed of two curtains 3A and 3B and is double-opened, for example, a ball screw portion 4A in the right-handed direction is formed on one side from the central portion of the rotary drive shaft 4, and the left side on the other side By forming the ball screw portion 4B in the screw direction, it is possible to open and close the curtain 3 (3A, 3B) by rotating the rotational drive shaft 4 forward and backward in the same manner.

  Next, the sliding support member 8 and the mounting structure of the sliding support member 8 will be described in detail with reference to FIG.

  The sliding support member 8 includes a main body shaft portion 31 that accommodates and holds the ball B and a cap member 32 having a curtain support portion. For example, an opening that exposes the upper end of the ball B is formed at one end (upper side of the drawing) of the main body shaft portion 31, and a cap member 32 is attached to the other end (lower side of the drawing). Further, an urging spring SP that presses the ball B against the ball screw portion is accommodated in the hollow shape. The biasing spring SP is configured not to fall through the cap member 32. That is, the cap member 32 has a function of storing the urging spring SP at a position where an urging force is applied to the ball.

  In addition, a sliding roller 34 is disposed on the main body shaft portion 31 so that the sliding support member slides along the inner wall portion of the outer cylinder 2 or along the rail member 22 mounted therein. It is configured. If it is this structure, since the sliding support member 8 which supports a curtain becomes easy to slide in the axial direction of an outer cylinder, a curtain can be opened and closed automatically using a drive device with small driving force.

  Further, since the curtain hook mounting hole 33 serving as the curtain support portion is provided in the cap member 32, the curtain hook can be easily mounted by being hooked on the curtain hook mounting hole 33.

  The outer cylinder 2 has, for example, a cylindrical shape, and has an opening groove portion 21 through which the cap member 32 of the sliding support member 8 can be inserted along the lower axial direction. The sliding support member 8 can be inserted from the end opening of the outer cylinder 2 or from the opening groove 21. This is because the sliding roller 34 is provided on both sides of the main body shaft portion 31 so that the diameter of the sliding roller 34 is smaller than the width of the opening groove portion 21, so that the wide direction is set to the opening. It can be inserted through the opening groove 21 by rotating 90 degrees so as to match the length direction of the groove 21.

  When the sliding support member 8 is inserted from the opening groove portion 21, the position where the ball B is engaged with the ball screw portion of the rotation drive shaft 4 (4A, 4B) becomes the stop portion. When rotated 90 degrees from this state, the sliding roller 34 is fitted into the inner peripheral surface of the outer cylinder 2 or the rail member 22 mounted inside the outer cylinder, and is arranged in a predetermined posture.

  As described above, the sliding support member 8 is slidable in accordance with the rotation of the rotary drive shaft 4 via the ball B engaged with the ball screw portion, so that the forward and reverse rotations of the rotary drive shaft are achieved. Move back and forth. Therefore, the curtain 3 can be integrally opened and closed by hooking the curtain hook 9 at the moving side end of the curtain 3.

  The curtain hook 9 of other curtains can be attached via a sliding support member 8A having a shape in which the ball B is not mounted. Since the sliding support member 8A does not have the ball B but has the sliding roller 34, the sliding support member 8A is slidable along the inner peripheral surface of the outer cylinder 2 or the rail member 22, and follows the movement of the curtain 3. To do.

  Further, the outer cylinder 2 may have a shape other than a cylindrical shape, for example, a rectangular tube shape as indicated by an imaginary line in the drawing. Therefore, by using the outer cylinder 2 having an outer shape suitable for the indoor interior in which the curtain device 1 is disposed, an automatic opening / closing curtain device having a preferable appearance can be obtained.

  The rotary drive shaft 4 is over-transferred via a drive device 5 capable of normal rotation and reverse rotation and a deceleration coupling 6 so that the curtain can be opened and closed at a predetermined speed.

  For example, a coil spring can be used as the biasing spring SP. Further, the engagement height between the ball screw portion and the ball B, the length of the urging spring SP, and the spring force are set such that the sliding support member 8 can be slid by human power. If it is this structure, a person can slide a curtain easily by manual work and the opening / closing operation by a curtain will become easy.

  Further, with the above configuration, the ball B mounted on the sliding support member 8 easily gets over the ball screw portion with a small force, so that even if the rotary drive shaft 4 rotates, it can be easily idled. it can. Therefore, even if the sliding movement of the sliding support member 8 is stopped while the rotation drive shaft 4 is rotating, the accommodated ball B gets over the ball screw part and can be easily stopped as it is. . That is, even when one curtain (3A or 3B) reaches the moving end during the automatic opening / closing operation of the curtains 3A, 3B, the ball B is idled and stops at that position.

  In order to make the ball B easy to idle, the engagement depth of the ball B with the ball screw portion is defined to be a predetermined shallow depth. That is, the engagement depth is suppressed to a small amount so that the ball B can be driven by being in contact with the ball screw portion that rotates as the rotary drive shaft 4 rotates. The length of the urging spring SP is such that the ball B extends and contracts beyond the ball screw portion, and its spring force is also sufficiently weak.

  For this reason, since the ball B is pressed against the ball screw portion with a weak force, when an external force or load is applied, the engagement relationship between the ball B and the ball screw portion is immediately released. Therefore, even if the rotational drive shaft 4 is rotationally driven, the sliding support member 8 is idle, and it can be said to be safe because it does not rotate or move. In addition, a weak force is sufficient for the opening / closing operation of the curtain 3, and the sliding support member 8 is idled when an extra external force or load is applied. 3A and 3B can be opened and closed safely.

  In order to reciprocate the sliding support member 8 with forward and reverse rotation of the rotary drive shaft 4, it is necessary to prevent the slide support member 8 from rotating even if the rotary drive shaft 4 rotates. In the present embodiment, sliding rollers 34 are provided on both sides of the sliding support member 8, and the rotation is prevented as a configuration in which these sliding rollers 34 are supported by the rail member 22.

  The rotary drive shaft 4 has, for example, a right screw direction ball screw portion 4A formed on one side of the shaft and a left screw direction ball screw portion 4B formed on the other side of the shaft. Further, a central stop portion in which neither the left or right ball screw portion is formed is provided at the intermediate portion thereof. This will be described with reference to FIG.

  As shown in FIG. 3, a central stop portion 4C is provided between the ball screw portion 4A and the ball screw portion 4B. The central stop portion 4C is not formed with a ball screw and has a larger diameter than the ball screw portions 4A and 4B. Moreover, if the rotational drive shaft 4 is long, a support block for supporting the intermediate portion thereof can be mounted. In particular, in the case of a curtain device corresponding to a long curtain, it is preferable that the central portion of the long rotation drive shaft 4 is supported by a support block and fixed to the wall. If it is a short curtain, it is not necessary, so it is sufficient to simply provide a large diameter portion.

  When one of the sliding support members 8 reaches the central stop portion 4C, the load increases, the ball B gets over the ball screw portion, and the sliding support member 8 starts to idle. When the other sliding support member 8 reaches the central stop portion 4C, the load increases in the same manner, the ball B gets over the ball screw portion, and both sliding support members 8 start to idle.

  Therefore, the driving state of the driving device 5 can be controlled by utilizing the increase in load at this time, and the rotation / stop of the rotary drive shaft 4 can be controlled.

  That is, the rotation drive shaft 4 continues to rotate until both sliding support members 8 arrive at the central stop 4C, and only when both sliding support members 8 have reached both of the loads. A high load corresponding to the sum can be detected to stop the rotation of the rotary drive shaft 4.

  As described above, the left and right sliding support members reach the central stop portion 4C by setting the torque generated when the pair of left and right sliding support members 8 reach the central stop portion 4C and idle as a torque threshold. Then, the driving device 5 can be stopped, and the pair of left and right curtains 3A and 3B can reach the central stop portion 4C, and the curtain can be closed at the same time. That is, the combined load of the loads received by both sliding support members 8 is set as a torque threshold, and the drive torque when the load torque of the drive device 5 exceeds a predetermined torque threshold is compared with the predetermined torque threshold. It is set as the structure which stops the rotational drive of the apparatus 5. FIG.

  The driving device 5 in this case is preferably a brushless motor capable of forward and reverse rotation. If it is this structure, it will become a motor with a low noise and a long life, and low-speed rotation is also possible via the deceleration coupling 6, and the opening and closing operation of a curtain can be performed quietly.

  With the configuration as described above, when the curtains 3A and 3B are closed via the driving device 5, even if the sliding support member 8 attached to one curtain reaches the central stop first, The rotation of the rotary drive shaft 4 is continued, the sliding support member 8 mounted on the other curtain reaches the central stop, finally reaches a predetermined torque threshold, and the closing operation of the curtains 3A and 3B is stopped. . Thereafter, when the drive device 5 is restarted and the rotary drive shaft 4 is rotated in the reverse direction, the respective sliding support members 8 move in the direction of opening the respective curtains 3A and 3B.

  Thus, regardless of the initial mounting position of the sliding support member 8, once the left and right pair of curtains 3A, 3B are once fully closed or fully opened, each sliding support member 8 is in a predetermined corresponding position. Set to Thereafter, the pair of left and right curtains 3A and 3B are opened and closed simultaneously according to the forward and reverse rotations of the drive device 5.

  Therefore, it is not necessary to consider the mounting position when the curtain is removed and then remounted after the curtain is replaced or washed, and the curtain hook 9 is simply fitted into the curtain hook mounting hole 33. The curtain can be easily replaced.

  Further, the drive device 5 can be provided with a communication function means 10 to automatically open and close the curtain 3 (3A, 3B) by remote control. For example, by making control possible via infrared communication, the curtain can be opened and closed automatically by remote operation, not only for people who are indoors, but also for people who are outdoors, using mobile phones and control devices that can communicate with infrared rays. Can do.

  As described above, according to the present invention, the outer cylinder having the opening groove portion constituting the curtain rail, the rotary drive shaft that is housed along the axial direction inside the outer cylinder and is rotatably supported, A sliding support member that abuts on the rotational drive shaft and slides along the opening groove portion is provided, and a central stop portion that is not formed with a ball screw portion is provided at the central portion of the rotational drive shaft. A right-handed ball screw part is formed on the shaft part of the left side, and a left-handed ball screw part is formed on the other shaft part. Attach a support member, rotate the rotation drive shaft in the forward direction and simultaneously move in the direction to close the pair of left and right curtains to close the curtain, rotate the rotation drive shaft in the reverse direction to move the pair of left and right curtains Move in the opening direction simultaneously to open the curtain Since the pair of right and left curtain is configured to be opened and closed together, and forward reverse rotation drive shaft via one of the drive unit can be a pair of left and right curtain automatically opened and closed.

  In addition, since the engagement height of the ball screw portion and the ball, the length of the biasing spring, and the spring force are set to such an extent that the sliding support member can be slid by human power, any position of the rotary drive shaft can be obtained. It is possible to mount the sliding support member, and it is not necessary to consider the relative positions of the left and right curtains, and the curtain mounting operation can be easily performed.

  Therefore, the present invention can be suitably used as a curtain device that automatically opens and closes a pair of left and right curtains automatically.

It is a schematic explanatory drawing which shows the whole structure of the curtain apparatus which concerns on this invention. It is a schematic explanatory drawing which shows the mounting state of a sliding support member. It is expansion explanatory drawing which shows the center stop part of a rotational drive shaft.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Curtain apparatus 2 Outer cylinder 3, 3A, 3B Curtain 4 Rotation drive shaft 4A Ball screw part of right screw direction 4B Ball screw part of left screw direction 4C Central stop part 5 Drive device 8 Sliding support member 9 Curtain hook 10 Communication function Means 21 Opening groove 22 Rail member 31 Main body shaft 31 and curtain support 32
32 Cap member 33 Curtain hook mounting hole (curtain support part)
34 Sliding roller SP Biasing spring B Ball

Claims (11)

An outer cylinder having an opening groove portion constituting a curtain rail, a rotation drive shaft that is housed along the axial direction inside the outer cylinder and is rotatably supported, and abuts the rotation drive shaft to the opening groove portion. A sliding support member that slides along,
A central stop portion in which a ball screw portion is not formed is provided at the center portion of the rotational drive shaft, a ball screw portion in the right-hand screw direction is formed from the center stop portion to one shaft portion, and a left-hand screw is formed on the other shaft portion. Forming the ball screw part in the direction,
The sliding support member is provided with a main body shaft portion that houses and holds a ball that engages with the ball screw portion, and a cap member that has a curtain support portion,
The sliding support members are arranged on the ball screw portions, the sliding support members are mounted on the upper ends of the left and right pair of curtains, and the rotation drive shaft is set in the forward direction. To rotate and simultaneously move in the direction to close the pair of left and right curtains, close the curtain, rotate the rotation drive shaft in the reverse direction and simultaneously move in the direction to open the pair of left and right curtains, open the curtain, A curtain device characterized by integrally opening and closing a pair of left and right curtains.   The sliding support member includes an urging spring that presses the ball against the ball screw portion on the main body shaft portion, and the cap member houses the urging spring in a position to apply an urging force to the ball. The curtain device according to claim 1.   The curtain device according to claim 2, wherein a curtain hook mounting hole serving as a curtain support portion is provided in the cap member.   4. The engagement height between the ball screw portion and the ball, the length of the urging spring, and the spring force are set such that the sliding support member can be slid by human power. The curtain device described in 1.   The curtain device according to claim 4, wherein when the sliding movement of the sliding support member is stopped during the rotation of the rotary drive shaft, the accommodated ball is idled around the ball screw portion.   The drive device includes a drive motor capable of forward and reverse rotation, and the rotational torque of the motor is stopped when the load torque of the motor exceeds a predetermined safe torque threshold value and exceeds the safe torque threshold value. The curtain device according to any one of claims 1 to 5.   The curtain device according to claim 6, wherein a torque generated when the pair of left and right sliding support members stops and idles is set as the safety torque threshold value.   A sliding roller is disposed on the main body shaft portion, and the sliding support member slides along an inner wall portion of the outer cylinder or along a rail member attached to the inside. The curtain device according to any one of claims 1 to 7.   9. The method according to claim 1, wherein the outer cylinder is a cylinder, a support plate that rotatably supports the rotary drive shaft is provided at both ends, and a drive device is attached to the support plate at one end. The curtain device described in 1.   9. The method according to claim 1, wherein the outer cylinder is a square cylinder, a support plate that rotatably supports the rotary drive shaft is provided at both ends, and a drive device is attached to the support plate at one end. Curtain device according to crab.   The curtain device according to any one of claims 1 to 10, wherein the drive device is provided with a communication function means to automatically open and close the curtain by remote operation.

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