JP2010112062A - Guide mechanism of ascending/descending chain - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To guide an ascending/descending chain for ascending/descending a sunshade member by a simple method, so as to make the ascending/descending chain suspended in a position away from a surface of the sunshade member. <P>SOLUTION: A device for ascending/descending the sunshade member lifts/lowers the sunshade member 1 by winding the ascending/descending chain 7 around a rotary member 5 journaled on one end of a winding shaft 2 arranged in a head unit 3, and winding/unwinding an ascending/descending cord 13 wound around the winding shaft 2 by operating the ascending/descending chain 7. An auxiliary pulley 10 is arranged in a predetermined location positioned on the indoor side with respect to a mounting position of the rotary member 5, and the ascending/descending chain wound around the rotary member 5 is guided by the auxiliary pulley 10. Thus, the ascending/descending chain 7 is suspended on the indoor side at a predetermined distance from the surface of the sunshade member 1. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an elevating chain guide mechanism for guiding an elevating chain for elevating an awning member such as a roll screen, a pleated screen, or a roman shade attached to a window frame.

  The raising and lowering of sunshades such as roll screens, pleated screens, and roman shades installed on the window frame is generally made by rotating a rotating member attached to one side of a winding shaft disposed in the head unit. The lifting / lowering chain or the lifting / lowering string is rotated by a user's operation, whereby the lifting / lowering cord is wound or the lifting / lowering cord is unwound from the winding shaft.

  Specifically, for example, there is a screen operating device that folds and lifts a pleated screen as described in Patent Document 1 from below. In the screen operating device described in Patent Document 1, a cover that supports a pulley body that lifts and lowers the screen body is provided in parallel with the pulley body, and another pulley body that meshes with the pulley body is provided. The operating chain is engaged with the operating chain, and the operating chain is moved from the position of the screen body by the operating angle adjusting member so that the operating chain is separated from the screen body.

Japanese Unexamined Patent Publication No. 2007-126901, page 1, FIG.

  By the way, since it is not preferable that the operating chain hanging from the head unit interferes with the screen main body, the screen operating device shown in Patent Document 1 is wound up to position the operating chain hanging down from the screen main body. An operating angle adjusting member is attached to a cover that pivotally supports a pulley body that is engaged with a shaft to regulate the position of the cover, and two pulley bodies that are pivotally supported on the cover are configured in parallel.

  However, it is troublesome in terms of the mechanism to adjust the position-regulating member of the cover and the engagement position of the two pulleys, and the lifting chain can perform the same function with a simpler configuration. The guide mechanism was desired.

  Therefore, the present invention provides a lifting chain guide mechanism for positioning the operating chain (elevating chain) to hang down from the screen body (awning member) with a simple mechanism, not a complicated mechanism as in the prior art. The purpose is to provide. Specifically, the present invention provides a lifting chain guide mechanism that can set the operating member of the lifting chain away from the awning member by a simple method without disposing a cover position regulating member on the cover of the rotating body. Objective.

  In order to solve the above-mentioned problem, the invention described in claim 1 is characterized in that the elevating chain is wound around a rotating member pivotally supported on one end of a hoisting shaft disposed in the head unit, and is wound around the hoisting shaft by operating the elevating chain. In an elevating device for an awning member that winds or unwinds an elevating cord and thereby raises or lowers the awning member, an auxiliary pulley is arranged at a predetermined position located on the indoor side of the mounting position of the rotating member, and the lifting is wound around the rotating member The elevating chain is suspended from the interior of the room at a predetermined distance from the surface of the sunshade by guiding the chain with an auxiliary pulley.

  In order to solve the above-mentioned problem, the invention according to claim 2 is the guide mechanism of the lifting chain according to claim 1, wherein the auxiliary pulley is a rotating member pivotally supported on a side plate attached to the end of the head unit. It is characterized in that it is disposed on the side plate at a position below the attachment position and on the indoor side and not in contact with the rotating member.

    In order to solve the above-mentioned problems, a third aspect of the present invention is the lifting chain guide mechanism according to the first or second aspect, wherein the lifting chain is a ball chain in which a plurality of spheres are arranged at predetermined intervals. A plurality of grooves are formed on the outer periphery of the rotating member so as to mesh with the sphere of the ball chain.

  The elevating chain guide mechanism according to the present invention can be used for a sunshade member such as a roll screen, a pleat screen, a roll blind, etc., and the elevating chain is attached to a rotating member pivotally supported on one end of a winding shaft disposed in the head unit. Winding and operating the lifting chain to wind the lifting / lowering cord around the winding shaft or to feed the lifting / lowering cord, thereby raising and lowering the sunshading member, the auxiliary pulley on the indoor side from the mounting position of the rotating member As a result, the elevating chain is positioned at the indoor position away from the surface of the sunshade member. Further, the auxiliary pulley is not in contact with the rotating member, and therefore the auxiliary pulley rotates as the lifting chain moves.

  According to the elevating chain guide mechanism of the present invention, the elevating chain is guided by the auxiliary pulley arranged at a position away from the rotating member arranged in the side plate of the head unit in the indoor side direction. There is an effect that the lifting / lowering chain can be suspended from the surface of the awning member to the indoor side without adjusting the engagement position with the member and the like, but with a simple mechanism.

  Further, according to the lifting chain guide mechanism according to the present invention, since the auxiliary pulley that freely rotates is arranged in the side plate of the head unit, there is an effect that the rotating member is smoothly rotated. In addition, there is an effect that the operation position of the elevating chain can be operated without being obstructed by the sunshade member by the auxiliary pulley.

  Hereinafter, an embodiment of a guide mechanism for a lifting chain according to the present invention will be described in detail with reference to the drawings. FIG. 1 is a schematic view showing the structure of a lifting chain guide mechanism according to the present invention, FIG. 2 is a cross-sectional view showing the main part in the side plate of the head unit, and FIG. 3 shows a state in which the sunshade member of FIG. 4 is a front view of FIG.

  First, the raising / lowering chain guide mechanism according to the present invention is provided on a pleated screen as an awning member 1 as shown in FIG. Of course, it is needless to say that the present invention can be applied to other sunshade members such as a roll screen, a pleated screen, and a roman shade.

  The illustrated awning member 1 is a pleated screen in which a bellows-like fold is formed. The upper end edge of the awning member 1 is fixed to the head unit 3 having the fixtures 14 and 14, and the lower end edge is a bottom unit as a weight. 12 is fixed. And inside the head unit 3, the winding shaft 2 is rotatably mounted along the longitudinal direction, and the upper ends of the two lifting cords 13, 13 are wound around the winding shaft 2, respectively. The lower ends of the elevating cords 13 and 13 are fixed to the bottom unit 12. A rotating member 5 that drives the winding shaft 2 is attached to one end of the winding shaft 2, and a shaft 6 a serving as a rotating shaft of the rotating member 5 is connected to the rotation center of the winding shaft 2. And is supported by a side plate 4 described later. A plurality of grooves 5 a are formed on the outer periphery of the rotating member 5 so that the balls 8 of the elevating chain 7 in which a large number of balls 8 are arranged at predetermined intervals are fitted.

  The side plate 4 is a member that is attached to both ends of the head unit 3, and the side plate 4 has a through hole 4 a that serves as a bearing for the shaft 6 a of the rotating member 5. Further, as shown in FIG. 1, the side plate 4 is provided with a shaft hole 4b for mounting the shaft rod 6b of the auxiliary pulley 10 at a position below the mounting position of the rotating member 5 and on the indoor side. Has been. In addition, the formation position of the shaft hole 4b is set apart from a position where the outer periphery of the rotating member 5 and the outer periphery of the auxiliary pulley 10 do not contact each other. A chain 7 is attached to the outer periphery of the rotating member 5 and the auxiliary pulley 10. In this way, the position where the lifting chain 7 hangs down by the auxiliary pulley 10 is guided to the near side (inside the room) from the surface of the awning member 1, so that the lifting chain 7 can be prevented from interfering with the awning member 1. The user can easily perform the raising and lowering operation of the awning member 1. Further, a lid 4c is attached to the side plate 4 as a cover for internal functions. A side plate (not shown) that supports the winding shaft 2 is also provided at the end of the head unit 3 opposite to the end of the head unit 3 on which the side plate 4 provided with the rotating member 5 and the auxiliary pulley 10 is provided. It has been.

  Unlike the rotating member 5, the auxiliary pulley 10 only has to guide the elevating chain 7 to the indoor side, so that the groove 5a for fitting the ball 8 does not need to be provided. Therefore, the outer periphery of the auxiliary pulley 10 is a smooth surface so as to smoothly guide the ball 8 of the lifting chain 7. Here, a guide wall 11 is provided inside the side plate 4 to guide the chain 7 moving along the outer periphery of the rotating member 5 and the auxiliary pulley 10 so as not to come off the rotating member 5 and the auxiliary pulley 10. The guide wall 11 is formed in accordance with the outer peripheral shape of the rotating member 5 and the auxiliary pulley 10, and extends from the upper side of the auxiliary pulley 10 to the vicinity of the lower side of the auxiliary pulley 10 through the vicinity of the outer periphery of the rotating member 5. It is formed in this way.

  Thus, as shown in FIG. 3, the lifting chain guide mechanism according to the present invention is such that the position where the lifting chain 7 guided by the rotating member 5 and the auxiliary pulley 10 hangs down from the surface of the awning member 1 (chamber). It is located at a predetermined interval on the inside.

  Next, the operation of the lifting chain guide mechanism will be described. First, the hoisting shaft 2 is rotated by operating the elevating chain 7 that drives the rotating member 5 pivotally supported by the side plate 4 on one side of the head unit 3 to rotate the rotating member 5. As a result, the lifting / lowering cord 13 attached to the winding shaft 2 is wound or unwound, and the awning member 1 moves up and down. At this time, the elevating chain 7 that meshes and moves with the outer periphery of the rotating member 5 is guided by the auxiliary pulley 10 and moves from the position directly below the rotating member 5 to the indoor side and hangs down. A constant interval is maintained from. Therefore, the awning member 1 does not interfere with the operation of the lifting chain 7.

  As described above, preferred examples of the present invention have been described in detail, but the present invention is not limited to such specific embodiments, and within the scope of the gist of the present invention described in the claims, Needless to say, various modifications and changes are possible.

It is a front view which shows the outline | summary of the guide mechanism of the raising / lowering chain which concerns on this invention. It is a partial front sectional view of the guide mechanism of the lifting chain of FIG. It is a side view which shows the relationship between a sunshade member and a raising / lowering chain. FIG. 4 is a front view of FIG. 3.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Awning member 2 Winding shaft 3 Head unit 4 Side plate 4a Through hole 4b Shaft hole 4c Cover body 5 Rotating member 5a Groove 6a Shaft bar 6b Shaft bar 7 Lifting chain 8 Ball 10 Auxiliary pulley 11 Guide wall 12 Bottom unit 13 Lifting cord 14 Installation Ingredients

Claims (3)

A lifting / lowering chain is wound around a rotating member pivotally supported on one end of a winding shaft disposed in the head unit, and a lifting / lowering cord wound around the winding shaft is wound or unwound by operating the lifting / lowering chain, thereby In the guide mechanism of the lifting chain that goes up and down,
An auxiliary pulley is disposed at a predetermined position located on the indoor side of the mounting position of the rotating member, and a lifting chain wound around the rotating member is guided by the auxiliary pulley, thereby a predetermined distance from the surface of the sunshade member. An elevating chain guide mechanism characterized in that the elevating chain is suspended on the indoor side separated from the other.   The auxiliary pulley is at a position lower than the mounting position of the rotating member that is pivotally supported by a side plate that is mounted on the end of the head unit, and on the indoor side, and does not contact the rotating member. The raising / lowering chain guide mechanism according to claim 1, wherein the raising / lowering chain guide mechanism is disposed on the side plate at a position.   2. The lifting chain is a ball chain in which a plurality of spheres are arranged continuously at a predetermined interval, and a plurality of grooves that mesh with the spheres of the ball chain are formed in the outer periphery of the rotating member. The elevating chain guide mechanism according to claim 2.

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