JP7469194B2 - Window opening and closing handle box - Google Patents

Description

This disclosure relates to a window opening and closing handle box (hereinafter referred to as a handle box) capable of winding up a wire for opening and closing a window.

For example, in the handle box described in Patent Document 1, a release switch that is pressed is provided on the face plate. The release switch is an operating part for changing the locking mechanism from a locked state to an unlocked state. The locking mechanism is a mechanism for switching between a locked state, which prohibits the reversal of the winding drum for winding the wire, and an unlocked state, which allows reversal.

JP 2000-80856 A

The winding drum is stored inside a storage box. The front side panel of the storage box is usually covered with a face plate. Therefore, when winding the wire, the person operating the handle box must open the face plate.

In view of the above, the present disclosure discloses an example of a handle box in which the faceplate can be displaced between a position that covers the front side panel surface and a position that exposes the front side panel surface.

It is desirable for a window opening/closing handle box (10) capable of winding up a wire for opening and closing a window to have at least one of the following configuration requirements:

That is, the components include a storage box (12) that houses a winding drum (14) for winding up the wire, a face plate (11) that covers the front side panel surface (12B) of the storage box (12), and a hinge member (20) made of a metal bar bent into a predetermined shape that connects the storage box (12) and the face plate (11), allowing the face plate (11) to be swung between a position that covers the front side panel surface (12B) and a position that exposes the front side panel surface (12B).

The hinge member (20) has a locking portion (20A) that is rotatably fitted into a locking hole (11A) provided on the back surface of the face plate (11), and includes a locking portion (20A) that extends in a direction parallel to the rotation axis direction, a through-hole (20B) that extends from the locking portion (20A) through a through-hole (12C) provided in the front side plate surface (12B) to the back surface side of the front side plate surface (12B), and a restricting portion (20C) that can contact the back surface (12D) side of the front side plate surface (12B).

Furthermore, the restricting portion (20C) contacts the back surface (12D) side, thereby restricting the engaging portion (20A) from moving away from the front side panel surface (12B) beyond a predetermined distance in a direction perpendicular to the front side panel surface (12B).

As a result, in the window opening and closing handle box (10), when the face plate (11) is in a position that exposes the front side panel surface (12B), the position of the face plate (11) can be prevented from becoming unstable.

Furthermore, since the hinge member (20) is made of a metal rod, the strength and durability of the hinge member (20) are improved compared to when the hinge member is made of resin.

Incidentally, the symbols in parentheses above are examples showing the corresponding relationship with the specific configurations etc. described in the embodiments described below, and the present disclosure is not limited to the specific configurations etc. shown by the symbols in parentheses above.

FIG. 2 is a diagram showing a smoke exhaust window according to the first embodiment. FIG. 2 is a diagram showing a handle box according to the first embodiment. FIG. 2 is a diagram showing a handle box according to the first embodiment. FIG. 4 is a diagram showing the internal structure of the handle box according to the first embodiment. FIG. 2 is a diagram showing a handle box according to the first embodiment. FIG. 2 is a diagram showing a handle box according to the first embodiment. 5A and 5B are diagrams illustrating a transmission member according to the first embodiment. FIG. 4 is a diagram showing an adjustment section according to the first embodiment. FIG. 2 is a diagram showing a hinge member according to the first embodiment. FIG. 2 is a structural explanatory diagram of a hinge member according to the first embodiment. FIG. 2 is a structural explanatory diagram of a hinge member according to the first embodiment. FIG. 2 is a structural explanatory diagram of a hinge member according to the first embodiment. FIG. 2 is a structural explanatory diagram of a hinge member according to the first embodiment. FIG. 2 is a structural explanatory diagram of a hinge member according to the first embodiment. FIG. 2 is a structural explanatory diagram of a hinge member according to the first embodiment. 5A to 5C are explanatory views of the operation of the hinge member according to the first embodiment.

The following "embodiment of the invention" shows an example of an embodiment that falls within the technical scope of this disclosure. In other words, the invention-specific matters described in the claims are not limited to the specific configurations and structures shown in the embodiment below.

The arrows and diagonal lines indicating directions in each figure are included to facilitate understanding of the relationships between the figures and the shapes of each component or part. Therefore, the invention presented in this disclosure is not limited to the directions in each figure.

Note that "left" and "right" in the figures refer to the right hand side when an observer views the window opening and closing handle box from the front, and "left" refers to the left hand side when an observer views the window opening and closing handle box from the front. Furthermore, figures with diagonal lines do not necessarily represent cross-sectional views.

At least one of each of the components or parts described with a reference symbol is provided, unless otherwise specified by "one". In other words, unless otherwise specified by "one", the component may be provided in two or more. The window opening and closing handle box shown in this disclosure includes at least the components or parts described with a reference symbol.

First Embodiment
<1. Overview of window opening and closing device>
In this embodiment, a handle box for opening and closing a window (hereinafter, referred to as a handle box) 10 according to the present disclosure is applied to a smoke exhaust window 1 shown in FIG.

The smoke exhaust window 1 is composed of a window frame 3, a screen 5, and a stay damper 7. The window frame 3 is a frame that outlines the opening of the smoke exhaust window 1. The screen 5 is a member for closing the opening. The screen 5 is rotatably connected to the window frame 3 via a hinge (not shown).

The stay damper 7 exerts a force (hereinafter referred to as the separating force) that separates the shoji screen 5 from the window frame 3. The stay damper 7 according to this embodiment has a cylindrical cylinder and a rod that extends and retracts from the cylinder. A spring or high-pressure gas that generates the separating force is enclosed inside the cylinder.

The handle box 10 is a manual winding device for winding up the wire 5A. The wire 5A is a wire for opening and closing the smoke exhaust window 1. In other words, when the wire 5A is wound up on the handle box 10, the screen 5 swings closer to the window frame 3, and the opening, i.e., the smoke exhaust window 1, is closed.

When the wound wire 5A is released, the staying damper 7 exerts a separating force that causes the screen 5 to swing away from the window frame 3, and the opening, i.e., the smoke exhaust window 1, is opened.

2. Handle box configuration
2.1 Overview of the handle box
2 and 3, the handle box 10 at least includes a face plate 11, a storage box 12, and a hinge member 20. The storage box 12 includes a box body 12A and a front side panel surface 12B.

As shown in FIG. 4, the box body 12A is a storage section that stores the winding device 13, the transmission member 17, etc. As shown in FIG. 3, the front side panel surface 12B is a member that covers a part of the front opening of the box body 12A.

As shown in FIG. 2, the face plate 11 is a member that covers the front side panel surface 12B. As shown in FIG. 3, the face plate 11 is connected to the storage box 12 via a hinge member 20.

<Winding device>
The winding device 13 is a device for winding up the wire 5A. As shown in Fig. 4, the winding device 13 at least includes a winding drum 14 and a locking mechanism 15. The winding drum 14 is a rotating body that can rotate in both forward and reverse directions, and winds up the wire 5A during forward rotation. Therefore, when the winding drum 14 rotates in the reverse direction, the wound wire 5A is released from the winding drum 14.

To rotate the winding drum 14 in the normal direction, the operator must insert the handle 30 into the winding drum 14 and rotate the handle 30, as shown in FIG. 5. The handle 30 is stored in the front side panel surface 12B in a disassembled state into two members 30A and 30B, as shown in FIG. 3.

As shown in FIG. 6, the handle 30 has a handle body 31 and a grip portion 32. The handle body 31 is a generally L-shaped portion having a short side portion 31A and a long side portion 31B. The grip portion 32 is a portion that is gripped by the operator.

The short side portion 31A is the portion that is inserted into the winding drum 14. The long side portion 31B is the portion that extends in a direction that intersects with the longitudinal direction of the short side portion 31A (in this embodiment, approximately perpendicular). The long side portion 31B is connected to the short side portion 31A at the base end portion 31C of the long side portion 31B.

The tip 31D of the long side 31B, i.e., the portion where the grip 32 is provided, is located on the opposite side of the base end 31C to the tip 31E of the short side 31A in a direction parallel to the short side 31A (the front-to-rear direction in this embodiment).

In other words, in the handle 30 according to this embodiment, the tip side of the member 30B is bent so as to bend relative to the long side portion of the member 30A. In other words, the tip side of the member 30B is bent so as to bend relative to an imaginary line in the vertical direction passing through the base end portion 31C.

<Lock mechanism>
The locking mechanism 15 is a mechanism that can switch between a locked state that prohibits reverse rotation of the winding drum 14 and an unlocked state that allows reverse rotation. As shown in Fig. 4, the locking mechanism 15 is configured to have at least a release member 15A, a ratchet mechanism 15B, and a transmission member 17.

The transmission member 17 is disposed on the back side of the face plate 11, i.e., on the front side panel surface 12B side. The transmission member 17 transmits the pressing force acting on the face plate 11 to the locking mechanism 15 as an operating force for putting the locking mechanism 15 into an unlocked state.

As shown in FIG. 7, the transmission member 17 is configured to have a main body portion 17A and an adjustment portion 17B. The adjustment portion 17B is fastened to the main body portion 17A by a fastener such as a flat head screw 17C.

As shown in FIG. 8, the portion of the adjustment portion 17B that comes into contact with the main body portion 17A has stepped portions 17D and 17E. The stepped portions 17D and 17E are configured in a spiral staircase shape centered on the insertion hole 17F of the flat head screw 17C.

<2.2 Detailed configuration of hinge member>
The hinge member 20 enables the faceplate 11 to be displaced between a position where the faceplate 11 covers the front side panel surface 12B (see FIG. 2) and a position where the front side panel surface 12B is exposed (see FIG. 3).

The hinge member 20 is made of a metal bar bent into a predetermined shape as shown in FIG. 9. Note that the hinge member 20 according to this embodiment is symmetrical about the approximate center in the left-right direction in FIG. 9.

The hinge member 20 is configured with a locking portion 20A, a through portion 20B, a first restricting portion 20C, a second restricting portion 20D, and a third restricting portion 20E, etc.

As shown in FIG. 10, the locking portion 20A is a portion that rotatably fits into the locking hole 11A provided on the back surface of the face plate 11, and is a linear portion that extends in a direction parallel to the rotation axis Lo.

As shown in FIG. 11, the through-hole 20B is a portion that extends from the locking portion 20A through the through-hole 12C to the back side of the front side plate surface 12B. As shown in FIG. 10, the through-hole 12C is an elongated through-hole that is provided in the front side plate surface 12B and extends in a direction perpendicular to the rotation axis Lo (in the vertical direction in this embodiment).

<First Restriction Part>
12, the first restricting portion 20C is a portion that can come into contact with the back surface 12D of the front side plate surface 12B. By coming into contact with the back surface 12D, the first restricting portion 20C restricts the locking portion 20A from moving away from the front side plate surface 12B in a direction perpendicular to the front side plate surface 12B (in this embodiment, toward the front) beyond a predetermined dimension.

In other words, as shown in FIG. 12, when the first restricting portion 20C is in contact with the back surface 12D of the front side panel surface 12B, the hinge member 20 is restricted from moving forward, and thus the displacement of the locking portion 20A, i.e., the locking hole 11A of the face plate 11, is restricted.

<Second Restriction Part>
As shown in Fig. 13, the second restricting portion 20D is a portion that can come into contact with an abutment portion 12E provided on the back surface 12D of the front side plate surface 12B. As shown in Fig. 9, the second restricting portion 20D is provided on the opposite side to the locking portion 20A across the first restricting portion 20C in the normal direction L1 (on the upper side of the first restricting portion 20C in Fig. 9).

The normal direction L1 refers to the direction perpendicular to the extension direction of the first restricting portion 20C (in this embodiment, the direction parallel to the rotation axis Lo). In other words, when the face plate 11 is fully open (see FIG. 10), the second restricting portion 20D is located above the first restricting portion 20C, and the locking portion 20A is located below the first restricting portion 20C.

Incidentally, there are an infinite number of directions that are perpendicular to the extension direction of the first restricting portion 20C. However, a direction in which the second restricting portion 20D does not exist has no technical meaning. Therefore, the normal direction L1 is a direction perpendicular to the extension direction of the first restricting portion 20C in which the function of the second restricting portion 20D can be exerted.

The second restricting portion 20D, as shown in FIG. 14, contacts the abutment portion 12E to restrict the maximum rotation angle of the locking portion 20A when it is rotated around an axis parallel to the rotation axis Lo (a direction perpendicular to the paper surface of FIG. 14).

Specifically, in this embodiment, when the first restricting portion 20C is in contact with the back surface 12D of the front side panel surface 12B, the locking portion 20A can be rotated in the direction of the arrow around the contact point between the first restricting portion 20C and the back surface 12D.

For example, in FIG. 14, when the hinge member 20 rotates from the state shown by the two-dot chain line to the state shown by the solid line around the contact point between the first restricting portion 20C and the back surface 12D, and the second restricting portion 20D comes into contact with the abutment portion 12E, the locking portion 20A cannot be rotated further leftward beyond the state shown by the solid line. In other words, the second restricting portion 20D restricts the maximum rotation angle when the locking portion 20A is rotated around an axis parallel to the rotation axis Lo.

<Third Regulating Part>
15, the third restricting portion 20E is a portion that can contact an inner wall 12F of the through hole 12C at an end portion in the extension direction of the through hole 12C (a lower end portion in this embodiment). The third restricting portion 20E contacts the inner wall 12F at least when the first restricting portion 20C and the second restricting portion 20D are in contact with the rear surface 12D.

The third restricting portion 20E is provided in a portion of the through portion 20B. Therefore, the third restricting portion 20E extends in a direction substantially perpendicular to the locking portion 20A, the first restricting portion 20C, and the second restricting portion 20D.

<2.3 Restriction part of face plate>
10, the face plate 11 is provided with a fourth restricting portion 11B that can come into contact with the through-hole portion 20B. The fourth restricting portion 11B restricts the maximum rotation angle of the face plate 11 around the locking portion 20A by coming into contact with the through-hole portion 20B.

In other words, as shown in FIG. 11, when the face plate 11 is in a fully open state, the fourth restricting portion 11B comes into contact with the penetration portion 20B near the locking portion 20A. Therefore, the face plate 11 cannot be further rotated around the locking portion 20A from this state.

2.4 Operation of the Face Plate and Hinge Members
When the faceplate 11 changes from a state in which it covers the front side panel surface 12B (hereinafter also referred to as a closed state) to an open state, as shown in Figure 16, the hinge member 20 first moves forward to a position where the first regulating portion 20C contacts the back surface 12D of the front side panel surface 12B.

When the first restricting portion 20C comes into contact with the back surface 12D of the front side panel surface 12B, the hinge member 20 rotates around the contact point between the first restricting portion 20C and the back surface 12D. Then, when the second restricting portion 20D comes into contact with the abutment portion 12E, the rotation stops.

When the hinge member 20 rotates, the contact point between the penetration portion 20B and the inner wall 12F changes so that the penetration portion 20B comes into rolling contact with the inner wall 12F. When the third restriction portion 20E is in contact with the inner wall 12F, the entire hinge member 20 is restricted from being displaced downward.

At this time, the first restricting portion 20C and the second restricting portion 20D are in contact with the back surface 12D of the front side plate surface 12B, so that the position and posture of the hinge member 20 relative to the front side plate surface 12B is maintained.

When the position and posture of the hinge member 20 is maintained, only rotational displacement of the face plate 11 around the locking portion 20A is possible. Then, when the penetration portion 20B and the fourth restriction portion 11B come into contact, the rotational displacement of the face plate 11 around the locking portion 20A stops.

In this embodiment, a permanent magnet (not shown) is provided on one of the face plate 11 and the front side panel surface 12B, and a ferromagnetic body such as iron (not shown) is provided on the other. The attractive force between the permanent magnet and the ferromagnetic body holds the face plate 11 in a position covering the front side panel surface 12B.

3. Features of the handle box according to this embodiment
The hinge member 20 according to this embodiment is made of a metal bar bent into a predetermined shape, and includes a first restricting portion 20C. The first restricting portion 20C is a portion that can come into contact with the rear surface 12D of the front side plate surface 12B.

The first restricting portion 20C contacts the rear surface 12D side, thereby restricting the engagement portion 20A from moving away from the front side panel surface 12B in a direction perpendicular to the front side panel surface 12B (in this embodiment, toward the front) beyond a predetermined distance.

As a result, the displacement of the locking hole 11A of the face plate 11 is restricted, so that when the face plate 11 is in a position that exposes the front side panel surface 12B, the position of the face plate 11 is prevented from becoming unstable.

When the second restricting portion 20D of the hinge member 20 contacts the rear surface 12D side of the face plate 11, the rotational displacement of the locking portion 20A about an axis parallel to the rotation axis Lo is restricted. This restricts the position of the hinge member 20, stabilizing the position of the hinge member 20.

The third restricting portion 20E contacts the inner wall 12F at least when the first restricting portion 20C and the second restricting portion 20D are in contact with the rear surface 12D side. This maintains the position of the hinge member 20. Therefore, the position of the hinge member 20 is stable.

When the fourth restricting portion 11B comes into contact with the through portion 20B, the maximum rotation angle of the face plate 11 around the locking portion 20A is restricted. This prevents the face plate 11 from opening excessively.

The adjustment portion 17B of the transmission member 17 is provided with stepped portions 17D and 17E. This makes it possible for the adjustment portion 17B to absorb any variation in the distance between the face plate 11 and the transmission member 17.

The tip side of the member 30B that constitutes the handle 30 is bent so as to bend toward an imaginary line in the vertical direction that passes through the base end 31C. This makes it possible to prevent interference between the handle 30 and the face plate 11 when the operator rotates the handle 30.

Other Embodiments
In the above embodiment, the tip side of the member 30B constituting the handle 30 is bent so as to be warped relative to a vertical imaginary line passing through the base end 31C. However, the present disclosure is not limited to this. That is, the present disclosure may be configured such that, for example, the tip side of the member 30B is located on a vertical imaginary line passing through the base end 31C.

In the above embodiment, the adjustment portion 17B of the transmission member 17 is provided with stepped portions 17D and 17E. However, the present disclosure is not limited to this. That is, the disclosure may be, for example, a spiral shape in which the adjustment portion 17B changes in dimensions steplessly.

In the above-described embodiment, the first restricting portion 20C, the second restricting portion 20D, the third restricting portion 20E, and the fourth restricting portion 11B were provided. However, the present disclosure is not limited to this. In other words, the disclosure may be, for example, a hinge member 20 in which at least one of the first restricting portion 20C, the second restricting portion 20D, the third restricting portion 20E, and the fourth restricting portion 11B is eliminated.

Furthermore, the present disclosure is not limited to the above-mentioned embodiments as long as it conforms to the spirit of the disclosure described in the above-mentioned embodiments. Therefore, the present disclosure may be a configuration in which at least two of the above-mentioned embodiments are combined, or a configuration in which any of the constituent elements illustrated or the constituent elements described with reference numerals in the above-mentioned embodiments are eliminated.

REFERENCE SIGNS LIST 10: Handle box 11: Face plate 12: Storage box 12A: Box body 12B: Front side plate surface 20: Hinge member 20A: Locking portion 20B: Through portion 20C: First restricting portion 20D: Second restricting portion 20E: Third restricting portion

Claims (6)

A handle box for opening and closing a window capable of winding up a wire for opening and closing a window,
A storage box containing a winding drum for winding the wire;
A face plate covering a front side panel surface of the storage box;
a hinge member that connects the storage box and the face plate and is made of a metal bar bent into a predetermined shape, and that enables the face plate to be displaced between a position that covers the front side panel surface and a position that exposes the front side panel surface;
The hinge member is
a locking portion rotatably fitted into a locking hole provided on the back surface of the face plate, the locking portion extending in a direction parallel to the rotation axis;
a through-hole extending from the locking portion to a back surface of the front side plate through a through-hole provided in the front side plate, and a restricting portion capable of contacting the back surface of the front side plate,
Furthermore, the regulating portion contacts the back side to regulate the engagement portion from moving away from the front side panel surface in a direction perpendicular to the front side panel surface by more than a predetermined distance. The restricting portion is a portion extending in a direction parallel to the rotation axis,
When a direction perpendicular to the extension direction of the restricting portion is defined as a normal direction,
a second restricting portion that is contactable with the back surface side of the hinge member and is disposed on a side opposite to the locking portion with respect to the restricting portion in the normal direction;
2. A window opening and closing handle box as described in claim 1, wherein the second regulating portion contacts the back side to regulate the maximum rotation angle when the engaging portion is rotationally displaced around an axis parallel to the rotation axis. The through hole is configured as an elongated hole extending in a direction perpendicular to a direction parallel to the rotation axis,
the hinge member has a third restriction portion at an end portion in an extension direction of the through hole, the third restriction portion being capable of contacting an inner wall of the through hole,
3. The window opening and closing handle box according to claim 2, wherein the third restricting portion contacts the inner wall at least when the restricting portion and the second restricting portion contact the rear surface side. the face plate is provided with a fourth restriction portion capable of contacting the through portion,
4. The window opening and closing handle box according to claim 3, wherein the fourth restricting portion comes into contact with the through-hole, thereby restricting a maximum rotation angle of the face plate about the locking portion as a rotation center. a locking mechanism accommodated in the storage box, the locking mechanism being switchable between a locked state in which the winding drum is prohibited from rotating in the rewinding direction and an unlocked state in which the winding drum is permitted to rotate;
a transmission member disposed on a back surface side of the face plate, the transmission member transmitting a pressing force acting on the face plate to the lock mechanism as an operating force for putting the lock mechanism into an unlocked state,
The transmission member includes a main body portion and an adjustment portion,
5. The window opening and closing handle box according to claim 1, wherein a portion of said adjustment portion that comes into contact with said main body portion is configured as a stepped portion. A winding handle for rotating the winding drum is provided, the winding handle being substantially L-shaped and having a short side portion and a long side portion,
A window opening and closing handle box as described in any one of claims 1 to 5, wherein the tip end of the long side portion is located on the opposite side to the tip end of the short side portion relative to the base end portion of the long side portion in a direction parallel to the short side portion.

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