JP2021004480A - Foldable handle and window opening/closing device - Google Patents

Abstract

To provide a foldable handle with an improved integrated feeling with a base body of a window opening/closing device in a folded form, which conveys a smoother impression.SOLUTION: An arm part 3 is composed of a first arm 5, a second arm 6 and a tip support part 7. An operation part 4 is rotatably supported by the tip support part 7. A base end part 5A of the first arm 5 is turnably mounted on a base part 2 around a rotary shaft JA1 of a first base end part. A tip part 5B of the first arm 5 is turnably mounted on the tip support part 7 around a rotary shaft JB1 of a first tip part. A base end part 6A of the second arm 6 is turnably mounted on the base part 2 around a rotary shaft JA2 of a second base end part. A tip part 6B of the second arm 6 is turnably mounted on the tip support part 7 around a rotary shaft JB2 of a second tip part. A rotary center G of the operation part 4 rotatably supported by the tip support part 7 is parallel to a rotary center H of a drive shaft D in a usage form A, and orthogonally intersects with the rotary center H of the drive shaft D in a folded form B.SELECTED DRAWING: Figure 4

Description

The present invention relates to a foldable handle used for a window opening / closing device that opens a shoji attached to a window frame to the outside of the room.

As a foldable handle used for a window opening / closing device that opens the shoji attached to the window frame to the outside of the room, the handle does not protrude significantly from the base of the window opening / closing device in the folded state so that it can be viewed integrally with the base. (See, for example, Patent Document 1).

The foldable handle (4) of Patent Document 1 can be folded around the handle shaft (15). Then, the device main body (1) is formed in a horizontally long shape, and the foldable handle (4) is attached to the device main body (1) in a state where the foldable handle (4) is folded (Patent Document 1). 1 and 6).

Japanese Patent No. 5261292

In the window opening / closing device of Patent Document 1, the foldable handle (4) is used in the upright state (FIGS. 2, 3, and 7 of Patent Document 1), and the knob (16) operated by the user is used. In consideration of the operability of the user, the handle (4) faces the user side in a direction orthogonal to the surface in the direction of rotation.

When the foldable handle (4) of Patent Document 1 is folded when not in use (FIGS. 1 and 6 of Patent Document 1), the foldable handle (4) is attached to the apparatus main body (1) as described above. I'm letting you. At that time, the knob (16) is directed toward the device body (1) so that the foldable handle (4) can be seen integrally with the device body (1).
As a result, it is necessary to form the knob storage portion (19), which is a recess for storing the knob (16), in the cover main body (3).

The knob storage portion (19) formed in the cover body (3) is a relatively large recess for storing the knob (16) facing the device body (1) side (FIG. 1 of Patent Document 1, FIG. FIG. 6).
Therefore, there is room for improvement from the viewpoint of giving a smoother impression by enhancing the sense of unity with the substrate of the window opening / closing device (device body (1)).

An object of the present invention is to provide a foldable handle that gives a smoother impression by enhancing the sense of unity with the substrate of the window opening / closing device in a folded form when not in use, and a window opening / closing device.

The gist of the present invention is as follows.
[1] A base attached to the drive shaft of a window opening / closing device that opens / closes a shoji screen of an opening / closing window.
An arm portion attached to the base portion and rotatable with respect to the base portion,
An operation unit attached to the tip of the arm unit and rotatable with respect to the arm unit,
With,
It is a foldable handle that can take a usage form in which the drive shaft is rotated and a folding form in which the drive shaft is folded when not in use.
The arm portion is composed of a first arm, a second arm, and a tip support portion.
The tip support portion rotatably supports the operation portion,
The base portion is provided with a first base end rotation shaft and a second base end rotation shaft parallel to the first base end rotation shaft.
The tip support portion is provided with a first tip rotation shaft and a second tip rotation shaft parallel to the first base end rotation shaft.
The base end portion of the first arm is rotatably attached to the base portion around the first base end portion rotation axis, and the tip end portion of the first arm is attached to the tip support portion. Attached so that it can rotate around the first tip rotation axis,
The base end portion of the second arm is rotatably attached to the base portion around the second base end portion rotation axis, and the tip end portion of the second arm is attached to the tip support portion. Attached so that it can rotate around the second tip rotation axis,
The center of rotation of the operating portion rotatably supported by the tip supporting portion is
In the usage pattern, it is parallel to the rotation center of the drive shaft and
In the folded form, it is orthogonal to the center of rotation of the drive shaft.
Foldable handle.

[2] One of the two arms of the first arm and the second arm has a U-shape in the cross-sectional shape in the direction orthogonal to the longitudinal direction.
In the folded form,
The U-shaped cross-sectional opening of one of the two arms faces the substrate of the window switchgear.
The other of the two arms is housed in the opening.
The foldable handle according to the above [1].

[3] In the folded state, the surface of one of the two arms and the surface of the operating portion are flush with each other.
The foldable handle according to the above [2].

[4] A window opening / closing device provided with the foldable handle according to any one of the above [1] to [3].

According to the foldable handle and the window opening / closing device according to the present invention, the following actions and effects are mainly exhibited.
(1) In the foldable form, since the operation portion of the foldable handle faces the direction along the substrate of the window opening / closing device, it is not necessary to form a recess in the substrate for accommodating the operation portion.
(2) Thereby, in the window opening / closing device provided with the foldable handle, it is possible to give a smoother impression with enhanced sense of unity with the substrate of the window opening / closing device.

It is a perspective view which shows the usage form of the foldable handle which provided the foldable handle which concerns on embodiment of this invention in the built-in window opening and closing device. It is a perspective view which shows the folding form of the foldable handle. It is a perspective view which shows the state which the foldable handle is removed from the drive shaft of a window opening / closing device. It is a vertical cross-sectional view and an external view of the foldable handle. The solid line is a vertical cross-sectional view showing the folded form, the alternate long and short dash line is a vertical cross-sectional view showing the used pattern, and the alternate long and short dash line is an external view showing the folded form and the form in the middle of the used pattern. It is an exploded perspective view of the foldable handle. FIG. 5 is a cross-sectional view of the foldable handle in a foldable form, cut at an intermediate position in the longitudinal direction at a plane orthogonal to the longitudinal direction, and viewed from the tip end side to the base end portion side. It is a perspective view which shows the usage form of the foldable handle which provided the foldable handle which concerns on embodiment of this invention in an exposed type window opening and closing device. It is a perspective view which shows the folding form of the foldable handle.

Hereinafter, embodiments according to the present invention will be described with reference to the drawings.

<Window opening / closing device: "Built-in type"example>
1 to 3 are perspective views showing the foldable handle 1 according to the embodiment of the present invention together with the window opening / closing device C for opening / closing the shoji of the opening / closing window, and FIG. 1 is a usage embodiment A of the foldable handle 1. FIG. 2 shows a folding form B of the folding handle 1, and FIG. 3 shows a state in which the folding handle 1 is removed from the drive shaft D of the window opening / closing device C.
The window opening / closing device C is used for an opening / closing window in which a shoji (not shown) attached to a window frame (only the lower frame F is shown in FIGS. 1 to 3) opens to the outside of the room, and has a function of opening / closing the shoji. ..
The window opening / closing device C shown in FIGS. 1 to 3 is a so-called "built-in type" in which a portion protruding from the lower frame F is small.

In the usage mode A of FIG. 1, when the user holds the operation unit 4 and rotates the handle 1, the drive shaft D (FIG. 3) of the window opening / closing device C is rotated, so that the shoji attached to the window frame is used. Can be opened and closed.
In the folding mode B of FIG. 2, in which the handle 1 is folded when not in use after performing the required opening / closing operation in the usage mode A, the handle 1 includes the operation unit 4 and is a substrate of the window opening / closing device C, for example, a substrate cover. Follow E.

<Folding handle>
As shown in the vertical sectional view and the external view of FIG. 4, the foldable handle 1 has a base 2 attached to the drive shaft D of the window opening / closing device C and an arm attached to the base 2 and rotatable with respect to the base 2. A portion 3 and an operating portion 4 attached to the tip of the arm portion 3 and rotatable with respect to the arm portion 3 are provided.

The arm portion 3 is composed of a first arm 5, a second arm 6, and a tip support portion 7, and the tip support portion 7 rotatably supports the operation portion 4.
The base portion 2 has a first base end rotation shaft JA1 and a second base end rotation shaft JA2 parallel to the first base end rotation shaft JA1.
The tip support portion 7 has a first tip rotation shaft JB1 and a second tip rotation shaft JB2 parallel to the first base end rotation shaft JA1.

The base end portion 5A of the first arm 5 is rotatably attached to the base portion 2 around the first base end portion rotation shaft JA1. The tip portion 5B of the first arm 5 is rotatably attached to the tip support portion 7 around the first tip rotation shaft JB1.
The base end portion 6A of the second arm 6 is rotatably attached to the base portion 2 around the second base end portion rotation shaft JA2. The tip portion 6B of the second arm 6 is rotatably attached to the tip support portion 7 around the second tip portion rotation shaft JB2.

Next, an example of the detailed structure of the foldable handle 1 will be described mainly with reference to the exploded perspective view of FIG.

A rivet 11A is inserted into one through hole 5a of the base end portion 5A of the first arm 5, the through hole 2a of the base 2, and the other through hole 5a of the base end portion 5A of the first arm 5 to crimp the shaft end. .. As a result, the base end portion 5A of the first arm 5 is rotatably attached to the base portion 2 around the first base end portion rotation shaft JA1.
A rivet 11B is inserted into one through hole 5b of the tip portion 5B of the first arm 5, the through hole 7a of the tip support portion 7, and the other through hole 5b of the tip portion 5B of the first arm 5 to crimp the shaft end. .. As a result, the tip portion 5B of the first arm 5 is rotatably attached to the tip support portion 7 around the first tip portion rotation shaft JB1.

A rivet 12A is inserted into one through hole 6a of the base end portion 6A of the second arm 6, the through hole 2b of the base 2, and the other through hole 6a of the base end portion 6A of the second arm 6 to crimp the shaft end. .. As a result, the base end portion 6A of the second arm 5 is rotatably attached to the base portion 2 around the second base end portion rotation shaft JA2.
A rivet 12B is inserted into one through hole 6b of the tip portion 6B of the second arm 6, the through hole 7b of the tip support portion 7, and the other through hole 6b of the tip portion 6B of the second arm 6 to crimp the shaft end. .. As a result, the tip portion 6B of the second arm 6 is rotatably attached to the tip support portion 7 around the second tip portion rotation shaft JB2.

The slide bearing 9 is fitted onto the support shaft 8 of the tip support portion 7. In that state, as shown in FIG. 4, the head portion 8A at the tip of the support shaft 8 contacts the end surface of the slide bearing 9, so that the slide bearing 9 is prevented from coming off.
The support shaft 8 and the slide bearing 9 of the tip support portion 7 are inserted into the recess 4A (FIG. 4) of the operation portion 4. As a result, as shown in FIG. 4, the locking portion 9A of the slide bearing 9 is locked to the locking portion 4B of the operating portion 4. The operation unit 4 is prevented from coming off from the support shaft 8 and the slide bearing 9 of the tip support portion 7, and is in a state of being rotatable around the rotation center G.

In the foldable handle 1 assembled in this way, the spline hole 2A (FIG. 5) of the base portion 2 is fitted to the spline shaft 10 of the drive shaft D of the window opening / closing device C shown in FIG. The foldable handle 1 is attached to the drive shaft D by screwing the set screw 13 shown in FIG. 4 from the attachment hole 2B shown in FIG.

In the foldable handle 1, as shown in FIG. 4, the base 2, the first arm 5, the second arm 6, and the tip support portion 7 form a four-node link mechanism.
Then, the length of each of those "links" is defined as follows.
That is, the positions of the first base end rotation shaft JA1 and the second base end rotation shaft JA2 in the base portion 2, and the first tip portion rotation shaft JB1 and the second tip end rotation shaft JB2 in the tip support portion 7. The position of is determined so as to realize the following (1) and (2).
(1) In the usage mode A, the rotation center G of the operation unit 4 rotatably supported by the tip support portion 7 is parallel to the rotation center H of the drive shaft D.
(2) In the folding form B, the rotation center G of the operation unit 4 rotatably supported by the tip support portion 7 is orthogonal to the rotation center H of the drive shaft D.

<Form of foldable handle and effect>
In the usage mode A of FIG. 4, the foldable handle 1 has the contact portion 7A of the tip support portion 7 in contact with the inner surface 5E of the first arm 5, so that the position of the operation portion 4 with respect to the first arm 5 is stable.
In the usage mode A shown in FIG. 4, as described above, the rotation center G of the operation unit 4 is parallel to the rotation center H of the drive shaft D.
Therefore, in the usage mode A, the operation unit 4 faces the user side in a direction orthogonal to the plane in which the handle 1 rotates, so that the operability is high.

In the folding form B of FIG. 4, in which the foldable handle 1 is folded when not in use, the rotation center G of the operation unit 4 is orthogonal to the rotation center H of the drive shaft D, as described above.
Therefore, in the folding form B, as shown in the perspective views of FIGS. 2 and 3, the operation unit 4 faces the direction along the substrate (base cover E) of the window opening / closing device C. It is not necessary to form a recess in the substrate (base cover E) for accommodating the operation unit 4.

According to such a foldable handle 1, it is not necessary to form the recess in the base of the window opening / closing device C, and in the folding form B, the operation unit 4 is oriented in the direction along the base (base cover E) of the window opening / closing device C. It is suitable.
As a result, in the window opening / closing device C provided with the foldable handle 1, as shown in FIG. 2, it is possible to give a smoother impression with enhanced sense of unity with the substrate (base cover E) of the window opening / closing device C. ..

In addition, in a conventional window opening / closing device in which the substrate does not have a recess for accommodating the operation unit, when the operation unit is provided with a conventional folding handle in a folded form in which the operation unit faces away from the substrate, the conventional folding handle Can be easily replaced with the foldable handle 1 of the present invention.
As a result, in the conventional window opening / closing device in which the recess is not provided in the substrate, the operating portion 4 of the foldable handle 1 which is the folding form B faces the direction along the substrate, so that the operating portion separates from the substrate in the folding form. Since the operation unit 4 does not protrude toward the room side as compared with the conventional one provided with the folding handle facing in the direction, it is possible to give a smoother impression with enhanced sense of unity with the base of the window opening / closing device.

As shown in the exploded perspective view of FIG. 5 and the cross-sectional view of FIG. 6, the first arm 5 has a cross-sectional shape of "U" (or "U") in the direction orthogonal to the longitudinal direction. And has an opening of 5D.
Then, in the folding form B, the opening 5D of the first arm 5 faces the substrate (base cover E) of the window opening / closing device C as shown in FIGS. 3 and 4, and the opening is opened as shown in FIGS. 4 and 6. The second arm 6 is housed in 5D.
Therefore, the smooth appearance of the foldable handle 1 in the foldable form B is not impaired.

Further, as shown in the perspective view of FIG. 2, the vertical sectional view of FIG. 4, and the external view, in the folded form B, the surfaces 5C of the first arm and the surface of the operation unit 4C located on the outside are flush with each other. , The sense of unity between the first arm 5 which is the arm portion 3 and the operation portion 4 is improved, and the appearance becomes smoother.

<Window opening / closing device: "exposed type"example>
The window opening / closing device C shown in FIGS. 7 and 8 is a so-called “exposed type” in which a portion protruding from the lower frame F is large, and the “exposed type” window opening / closing device C is folded according to the embodiment of the present invention. An example including the formula handle 1 is shown.
FIG. 7 shows a usage mode A and FIG. 8 shows a folding mode B of the foldable handle 1.
Even when the "exposed" window opening / closing device C is provided with the foldable handle 1 according to the embodiment of the present invention, the same effect as the above effect can be obtained.

All the descriptions of the above embodiments are examples, and the present invention is not limited thereto. Various improvements and modifications can be made without departing from the scope of the present invention.

1 Foldable handle 2 Base 2A Spline hole 2B Mounting hole 2a, 2b Through hole 3 Arm 4 Operation part 4A Recess 4B Locking part 4C Surface 5 First arm 5A Base end 5B Tip 5C Surface 5D Opening 5E Inner surface 5a, 5b Through hole 6 Second arm 6A Base end 6B Tip 6a, 6b Through hole 7 Tip support 7A Stopping part 7a, 7b Through hole 8 Support shaft 8A Head 9 Slide bearing 9A Locking part 10 Spline shaft 11A, 11B, 12A, 12B Rivets 13 Set screw A Usage form B Folding form C Window opening / closing device D Drive shaft E Base cover F Lower frame G, H Rotation center JA1 1st base end rotation shaft JA2 2nd base end rotation Shaft JB1 1st tip rotation shaft JB2 2nd tip rotation shaft

Claims (4)

The base attached to the drive shaft of the window opening / closing device that opens / closes the shoji of the opening / closing window,
An arm portion attached to the base portion and rotatable with respect to the base portion,
An operation unit attached to the tip of the arm unit and rotatable with respect to the arm unit,
With,
It is a foldable handle that can take a usage form in which the drive shaft is rotated and a folding form in which the drive shaft is folded when not in use.
The arm portion is composed of a first arm, a second arm, and a tip support portion.
The tip support portion rotatably supports the operation portion,
The base portion is provided with a first base end rotation shaft and a second base end rotation shaft parallel to the first base end rotation shaft.
The tip support portion is provided with a first tip rotation shaft and a second tip rotation shaft parallel to the first base end rotation shaft.
The base end portion of the first arm is rotatably attached to the base portion around the first base end portion rotation axis, and the tip end portion of the first arm is attached to the tip support portion. Attached so that it can rotate around the first tip rotation axis,
The base end portion of the second arm is rotatably attached to the base portion around the second base end portion rotation axis, and the tip end portion of the second arm is attached to the tip support portion. Attached so that it can rotate around the second tip rotation axis,
The center of rotation of the operating portion rotatably supported by the tip supporting portion is
In the usage pattern, it is parallel to the rotation center of the drive shaft and
In the folded form, it is orthogonal to the center of rotation of the drive shaft.
Foldable handle. One of the two arms, the first arm and the second arm, has a U-shape in the cross-sectional shape in the direction orthogonal to the longitudinal direction.
In the folded form,
The U-shaped cross-sectional opening of one of the two arms faces the substrate of the window switchgear.
The other of the two arms is housed in the opening.
The foldable handle according to claim 1. In the folded state, the surface of one of the two arms and the surface of the operating portion are flush with each other.
The foldable handle according to claim 2. A window opening / closing device provided with the foldable handle according to any one of claims 1 to 3.

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