JP7028668B2 - Winding device for windows - Google Patents

Description

The present disclosure relates to a window winder that winds a wire for opening and closing a window.

The wire of the window winding device is wound on a cylindrical or cylindrical winding drum, for example, as described in Patent Document 1.

Registered Utility Model No. 3210221

The width dimension of the window winder with a cylindrical or columnar take-up drum is larger than the diameter dimension of the take-up drum. Therefore, in the window winding device described in Patent Document 1, it is difficult to reduce the width dimension of the window winding device.

In view of the above points, the present application discloses an example of a window winding device capable of reducing the width dimension.

The window winding device is, for example, an endless annular body (14) having an annular body (14) to which one end of a wire (5A) is connected and a first rotation in which the annular body (14) is hung. The direction in which the first rotating body (15A) and the second rotating body (15B) and the wire (5A), which are the body (15A) and the second rotating body (15B) and are arranged at positions separated from each other, are wound. Is preferably provided with a drive unit (16) for rotating the annular body (14).

As a result, in the window winding device, when the annular body (14) rotates in the direction in which the wire (5A) is wound, the wire (5A) has a shape (for example, an oval) drawn by the annular body (14). It is wound up in a shape).

That is, if the peripheral length of the annular body (14) is the same as the peripheral length of the winding drum configured in the cylindrical member, the wire to be wound when the annular body (14) makes one rotation. The length of (5A) and the length of the wire wound when the cylindrical winding drum makes one rotation are the same length.

Since the annular body (14) rotates while being hung on the first rotating body (15A) and the second rotating body (15B), the shape drawn by the annular body (14) is not circular and at least two. It has a shape (for example, an oval shape) including a linear portion and at least two arc-shaped portions.

Therefore, for example, if the minor axis direction of the elliptical circle coincides with the width direction of the window winding device, the width dimension of the window winding device is the conventional winding drum provided with a cylindrical winding device. It is smaller than the widthwise dimension of the window winder.

That is, the window winding device can wind a wire (5A) having a length equal to or longer than that of the conventional window winding device, and the width direction dimension is the conventional window winding device. Can be smaller than the device.

Incidentally, the reference numeral in each of the parentheses is an example showing a correspondence relationship with the specific configuration and the like described in the embodiment described later, and the present invention is limited to the specific configuration and the like shown in the reference numeral in the parentheses. It's not rumo.

It is a figure which shows the outline of a smoke exhaust window. It is a figure which shows the structure of the window winding apparatus which concerns on 1st Embodiment. It is a figure which shows the front of the window winding apparatus which concerns on 1st Embodiment. It is a figure which shows the structure of the window winding apparatus which concerns on 1st Embodiment. It is a figure which shows the structure of the window winding apparatus which concerns on 1st Embodiment. It is a figure which shows the structure of the window winding apparatus which concerns on 1st Embodiment. It is a figure which shows the structure of the wind winding device for a window which concerns on 2nd Embodiment. It is a figure which shows the structure of the wind winding device for a window which concerns on 2nd Embodiment.

The following "invention embodiment" shows an example of an embodiment belonging to the technical scope of the present invention. That is, the matters specifying the invention described in the claims are not limited to the specific configuration, structure, etc. shown in the following embodiments.

It should be noted that the arrows and the like indicating the directions attached to each figure are described in order to make it easier to understand the relationship between each figure. The inventions described herein are not limited to the directions given in each figure.

At least one member or part described with a reference numeral is provided, unless otherwise specified by "one" or the like. That is, if there is no notice such as "one", two or more of the members may be provided.

(First Embodiment)
1. 1. Outline of Window Opening / Closing Device As shown in FIG. 1, this embodiment is an example of a window winding device 10 applied to a smoke exhaust window 1. The smoke exhaust window 1 includes a window frame 3, a shoji screen 5, a stay damper 7, and the like. The window frame 3 is a frame portion that borders the opening of the smoke exhaust window 1.

The window frame 3 includes at least two vertical frame portions 3A, 3B, and at least two horizontal frame portions 3C, 3D, and the like. The vertical frame portions 3A and 3B are crosspieces extending in the vertical direction. The horizontal frame portions 3C and 3D are horizontal rails extending in the horizontal direction. The vertical frame portions 3A and 3B and the horizontal frame portions 3C and 3D are made of light metal such as aluminum.

The shoji 5 is a member for closing the opening above the horizontal frame portion 3D, and can swing to the window frame 3 (in the present embodiment, the horizontal frame portion 3D) via a hinge (not shown). Is linked to. A panel material such as a glass plate is fixed to the opening below the horizontal frame portion 3D in a state of being fitted into the opening.

The stay damper 7 is a member that exerts a force for separating the shoji 5 from the window frame 3 (hereinafter referred to as a separation force). The smoke exhaust window 1 according to the present embodiment has two stay dampers 7. One end side of each stay damper 7 is attached to each of the vertical frame portions 3A and 3B.

The window winding device 10 is a device for winding the wire 5A. The wire 5A is a cord for swinging the shoji 5. When the wire 5A is wound around the window winding device 10, the shoji 5 is oscillated and displaced so as to approach the window frame 3, and the opening, that is, the smoke exhaust window 1 is closed.

When the wire 5A wound around the window winding device 10 is released, the sliding force 5 exerted by each stay damper 7 causes the shoji 5 to swing and displace so as to be separated from the window frame 3, that is, the opening, that is, the opening. The smoke exhaust window 1 is open (the state shown in FIG. 1).

2. 2. Window winding device 2.1 Outline of window winding device The window winding device 10 according to the present embodiment is housed in the vertical frame portion 3A (see FIG. 1). As shown in FIG. 2, the window winding device 10 includes a base material 11, a face plate 12, a winding mechanism 13, and the like.

The base material 11 according to the present embodiment includes a first base plate 11A, a second base plate 11B, a block portion 11C, and the like. The first base plate 11A and the second base plate 11B are strip-shaped members, and are arranged so as to face each other so as to sandwich the winding mechanism 13.

The block portion 11C is fixed to the first base plate 11A and the second base plate 11B by fasteners such as screws while being sandwiched between the first base plate 11A and the second base plate 11B.

The face plate 12 is a cover that is mounted on the indoor side of the vertical frame portion 3A and covers the base material 11 (in this embodiment, the second base plate 11B). As shown in FIG. 3, the face plate 12 is provided with a through hole communicating with the operation button 12A and the handle insertion portion 12B.

The operation button 12A is an operation unit operated by an operator. When the operation button 12A is pressed by the operator, the window winding device 10, that is, the wire 5A wound by the winding mechanism 13, is opened, and the smoke exhaust window 1 is opened.

The handle insertion portion 12B is a portion where the take-up handle (not shown) can be detachably inserted. When the operator rotates the take-up handle with the take-up handle attached to the handle insertion portion 12B, the open wire 5A is taken up by the take-up mechanism 13.

When the wire 5A is wound by the winding mechanism 13, the shoji 5 approaches the window frame 3, so that the smoke exhaust window 1 is closed. The operation button 12A and the handle insertion portion 12B are attached to the base material 11.

2.2 Winding mechanism The winding mechanism 13 is a mechanism for winding the wire 5A. As shown in FIG. 4, the winding mechanism 13 is a mechanism for winding the wire 5A into a shape (in this embodiment, an oval shape) drawn by the endless roller chain 14. The roller chain 14 is an example of an endless annular body, and one end of a wire 5A is directly or indirectly connected as shown in FIG.

That is, as shown in FIG. 2, the winding mechanism 13 includes at least one roller chain 14, a first sprocket 15A, a second sprocket 15B, a drive unit 16, and the like.

The first sprocket 15A and the second sprocket 15B are examples of the first rotating body and the second rotating body. The two sprockets 15A and 15B are arranged at positions separated from each other. A roller chain 14 is hung on the two sprockets 15A and 15B. The distance between the rotation centers of the two sprockets 15A and 15B is equal to the linear portion length of the oval shape drawn by the roller chain 14.

The drive unit 16 is a mechanism for rotating the roller chain 14 in the direction in which the wire 5A is wound (hereinafter referred to as the winding direction). The drive unit 16 has at least a first gear 16A, a second gear 16B, and the like.

The first gear 16A is a spur gear that rotates integrally with the first sprocket 15A. The second gear 16B is a spur gear that rotates integrally with the handle insertion portion 12B and meshes with the first gear 16A.

Therefore, when the operator rotates the take-up handle in the take-up direction with the take-up handle attached to the handle insertion portion 12B, the rotation is transmitted to the first sprocket 15A. Therefore, the roller chain 14 rotates in the winding direction. The second sprocket 15B rotates in accordance with the rotation of the roller chain 14.

The centrifugal brake 16C is a braking device for suppressing the rotation speed of the first sprocket 15A from becoming excessively high. That is, the centrifugal brake 16C is a braking device in which the braking force increases as the rotational speed of the first sprocket 15A increases.

As a result, when the first sprocket 15A rotates in the direction in which the wire 5A is opened (hereinafter referred to as the opening direction), the rotation speed of the first sprocket 15A is suppressed from becoming excessively high. Since the rotation speed when the first sprocket 15A rotates in the winding direction is small, the braking force generated by the centrifugal brake 16C is substantially 0.

When the roller chain 14 rotates in the winding direction, as shown in FIG. 5, the wire 5A is hung on the outer peripheral surface 17A of the first winding drum 17 and the outer peripheral surface 18A of the second winding drum 18. It is taken up by.

That is, the outer peripheral surface 17A of the first take-up drum 17 is a cylinder or an outer peripheral surface of a cylinder curved around the rotation center axis L1 of the first sprocket 15A. The outer peripheral surface 18A of the second take-up drum 18 is a cylinder or an outer peripheral surface of a cylinder curved around the rotation center axis L2 of the second sprocket 15B.

The first take-up drum 17 is an example of a first take-up member that can rotate about the rotation center axis L1 of the first sprocket 15A. Therefore, the outer peripheral surface 17A of the first take-up drum 17 is a circumferential surface centered on the rotation center axis L1 of the first sprocket 15A. The outer peripheral surface 17A according to the present embodiment is a conical circumferential surface.

The second take-up drum 18 is an example of a second take-up member that can rotate about the rotation center axis L2 of the second sprocket 15B. Therefore, the outer peripheral surface 18A of the second take-up drum 18 is a circumferential surface centered on the rotation center axis L2 of the second sprocket 15B. The outer peripheral surface 18A according to the present embodiment is a conical circumferential surface.

The first take-up drum 17 according to the present embodiment is integrated with the first sprocket 15A and rotates in synchronization with the first sprocket 15A. Similarly, the second take-up drum 18 is integrated with the second sprocket 15B and rotates in synchronization with the second sprocket 15B.

The ratchet mechanism 19 shown in FIG. 6 is a device for switching between a case where the first sprocket 15A is in a regulated state and a case where the first sprocket 15A is in a released state. Under regulated conditions, the first sprocket 15A cannot rotate in the open direction. The released state is the state in which the regulated state is released.

The first sprocket 15A can always rotate in the winding direction regardless of the state of the ratchet mechanism 19. The ratchet mechanism 19 includes a ratchet gear 19A, a pawl 19B, and the like. The ratchet gear 19A rotates forward and reverse integrally with the first sprocket 15A.

The pawl 19B can be displaced between the restricted position (position indicated by the solid line) engaged so as to be hooked on the ratchet gear 19A and the release position (position indicated by the alternate long and short dash line) separated from the engaged position. be.

When the operation button 12A is operated, the operating member 19C moves from the position indicated by the solid line to the position indicated by the alternate long and short dash line, and the pawl 19B is displaced from the regulated position to the released position. When the pawl 19B is in the release position, the first sprocket 15A is in the release state.

When the take-up handle is attached to the handle insertion portion 12B, the return slider 19D (see FIG. 2) is displaced, and the actuating member 19C and the pawl 19B return to the positions shown by the solid lines, that is, the regulated positions. Therefore, the first sprocket 15A is in a regulated state.

3. 3. Features of the window winding device according to the present embodiment If the peripheral length of the roller chain 14 is the same as the peripheral length of the winding drum configured in the cylindrical member, the roller chain 14 makes one rotation. The length of the wire 5A to be wound when the winding is performed and the length of the wire to be wound when the cylindrical winding drum makes one rotation are the same length.

Since the roller chain 14 rotates while being hung on the first sprocket 15A and the second sprocket 15B, the shape drawn by the roller chain 14 is not circular, but at least two linear portions and at least two arcs. It has a shape with a part of, that is, an oval shape.

Then, in the window winding device 10 according to the present embodiment, when the roller chain 14 rotates in the winding direction, the wire 5A is wound in the shape drawn by the roller chain 14, that is, in an oval shape.

Therefore, if the minor axis direction of the elliptical circle coincides with the width direction of the window winding device 10 (horizontal direction in this embodiment), the width dimension of the window winding device 10 is a cylinder. It is smaller than the widthwise dimension of a conventional window winder with a shaped wind drum.

That is, the window winding device 10 according to the present embodiment can wind a wire 5A having a length equal to or longer than that of the conventional window winding device, and has a width direction dimension of the conventional window. Can be smaller than a winder.

In the window winding device 10 according to the present embodiment, the first winding drum 17 and the second winding drum 18 are rotatable. As a result, when the wire 5A is released from the window winding device 10 and when the wire 5A is wound by the window winding device 10, the outer peripheral surface 17A and the second winding of the first winding drum 17 are wound. It is suppressed that a large resistance is generated on the outer peripheral surface 18A of the drum 18.

In the window take-up device 10 according to the present embodiment, the first take-up drum 17 rotates in synchronization with the first sprocket 15A, and the second take-up drum 18 rotates in synchronization with the second sprocket 15B. As a result, the first take-up drum 17 and the second take-up drum 18 can be rotated in synchronization with the rotation of the roller chain 14.

In the window winding device 10 according to the present embodiment, when the wire 5A is released from the window winding device 10 and when the wire 5A is wound by the window winding device 10, the first It is surely suppressed that a large resistance is generated on the outer peripheral surface 17A of the first take-up drum 17 and the outer peripheral surface 18A of the second take-up drum 18.

(Second Embodiment)
In the above-described embodiment, the wire 5A is wound so as to be hung on the first take-up drum 17 and the second take-up drum 18. However, in the window winding device 10 according to the present embodiment, as shown in FIG. 7, the wire 5A is configured to be wound around the roller chain 14 itself.

Specifically, as shown in FIG. 8, a flange body 14B having a substantially U-shaped cross section or a substantially U-shaped cross section is fixed to each plate 14A constituting the roller chain 14. As a result, the roller chain 14 itself functions as a bobbin (pincushion).

Since the same configuration requirements and the like as those in the above-described embodiment are designated by the same reference numerals as those in the above-described embodiment, duplicate description will be omitted.
(Other embodiments)
The annular body according to the above-described embodiment was composed of a roller chain 14. However, the invention disclosed in the present specification is not limited to this. That is, the annular body may be composed of a chain other than the roller chain (for example, a silent chain) or a belt such as a V-belt or a toothed belt.

The first take-up drum 17 and the second take-up drum 18 according to the above-described embodiment have a rotatable configuration. However, the invention disclosed in the present specification is not limited to this. That is, for example, the first take-up drum 17 and the second take-up drum 18 may have a non-rotatable configuration. In this configuration, it is sufficient that the outer peripheral surfaces 17A and 18A are provided in a range of at least 180 degrees.

In the above-described embodiment, the shape drawn by the roller chain 14 is oval. However, the invention disclosed in the present specification is not limited to this. That is, the shape drawn by the roller chain 14 may be, for example, an elliptical shape, a spindle shape, a polygonal shape, or the like.

In the above-described embodiment, when the roller chain 14 rotates in the winding direction, the wire 5A is a window winding device having a shape drawn by the roller chain 14, that is, a configuration in which the wire 5A is wound in an oval shape. However, the invention disclosed in the present specification is not limited to this.

That is, for example, as described in Japanese Patent Application Laid-Open No. 2013-249183, even in a window winding device in which a wire 5A is hung on a moving pulley and a fixed pulley, the width dimension can be reduced. It is possible to obtain a take-up device.

Furthermore, the present invention is not limited to the above-described embodiment as long as it conforms to the gist of the invention described in the claims. Therefore, at least two of the plurality of embodiments described above may be combined.

1 ... Smoke exhaust window 3 ... Window frame 5 ... Sprocket 5A ... Wire 7 ... Stay damper 10 ... Window winding device 11 ... Base material 11A ... 1st base plate 11B ... 2nd base plate 11C ... Block part 12 ... Face plate 12A ... Operation button 12B ... Handle insertion part 13 ... Winding mechanism 14 ... Roller chain 15A ... 1st sprocket 16B ... 2nd sprocket 16 ... Drive unit 16A ... 1st gear 16B ... 2nd gear 16C ... Centrifugal brake 17 ... 1st winding Drum 17A ... Outer surface 18 ... Second take-up drum 18A ... Outer surface 19 ... Ratchet mechanism 19A ... Ratchet gear 19C ... Actuating member 19D ... Return slider

Claims (3)

In a window winder that winds a wire to open and close a window,
An endless annular body in which one end of the wire is directly or indirectly connected to the annular body.
The first rotating body and the second rotating body to which the annular body is hung, and the first rotating body and the second rotating body arranged at positions separated from each other,
A drive unit for rotating the annular body in the direction in which the wire is wound ,
The first winding member having an outer peripheral surface curved around the rotation center axis of the first rotating body, and the first winding member.
A second winding member having an outer peripheral surface curved around the rotation center axis of the second rotating body is provided.
The annular body is a roller chain.
The first rotating body and the second rotating body are sprockets that rotate by meshing with the roller chain.
Further, when the wire is wound, the wire is wound around the outer peripheral surface of the first winding member and the outer peripheral surface of the second winding member . The first winding member is a rotating body that can rotate around the rotation center axis of the first rotating body, and the outer peripheral surface of the first winding member has the rotation center axis of the first rotating body. It is the central circumferential surface,
The second winding member is a rotating body that can rotate around the rotation center axis of the second rotating body, and the outer peripheral surface of the second winding member has the rotation center axis of the second rotating body. The winder for a window according to claim 1 , which is a circumferential surface around the center. The first take-up member is configured to rotate in synchronization with the first rotating body.
The window winding device according to claim 2 , wherein the second winding member is configured to rotate in synchronization with the second rotating body.

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