JP2016089463A - Handle malfunction prevention device and casement - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a handle malfunction prevention device which: does not affect a width and design of a doorframe at a tip of a sliding door; does not limit other hardware installed on the doorframe; alleviates limitation of a minimum manufacturing height of the sliding door; and can offer increased flexibility to deal with a construction error and aging.SOLUTION: A handle malfunction prevention device has a handle shaft rotation control section 11 which: is installed inside a device case 10, where a handle shaft 12a penetrates, in a vertical doorframe 31 at a tip of a sliding door 3; allows the handle shaft 12a to be rotated when the sliding door 3 is operated to close an opening frame 2, by bringing a contacted section 21c1 of the opening frame 2 into contact with a tip contact section 11b4 of a first reciprocating member 11b and thereby moving a tip engagement section 11c3 of a second reciprocating member 11c in a direction away from the handle shaft 12a; and prohibits rotation of the handle shaft 12a when the sliding door 3 is operated to open the opening frame 2, by separating the tip contact section 11b4 of the first reciprocating member 11b from the contacted section 21c1 of the opening frame 2 and thereby making the tip engagement section 11c3 of the second reciprocating member 11c engage with a cam member 12b due to elastic force of a compressing spring 11a.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an apparatus for preventing malfunction of a handle that is attached to a sliding window such as a single-opening window, a vertical sliding window, a single-opening door, or the like that is openable and closable with respect to an opening frame. It relates to the provided window.

  For shojis such as single swing windows, vertical sliding windows and single doors (also called doors, hereinafter collectively referred to as shojis), the handle must be closed when the shoji is opened and rotated with the handle closed. In order to prevent a hand having a handle from being sandwiched between opening frames, a malfunction prevention device for a handle that locks the handle so that it does not rotate in a state in which the shoji is opened has been proposed (see, for example, Patent Document 1).

  In the handle mechanism in the shoji (door) of this patent document 1, the handle shaft of the handle passes through the vertical shaft at the tip of the shoji to convert the rotation of the handle shaft into a reciprocating motion. Is provided. Then, a slide body is arranged in a groove of an opening / closing machine frame provided integrally with the interlocking device on a vertical shaft, and a groove formed vertically on the lower end of the slide body along the side surface of the vertical shaft of the shoji tip An interlocking member called interlocking rod or interlocking rod is connected inside, and a locking / unlocking device (lock mechanism) is connected to the tip of the interlocking member, and the shoji is locked or unlocked to the opening frame by the locking / unlocking device. ing.

  And in the handle mechanism in the shoji of this patent document 1, a long hole part and its long hole are provided in the interlock member separate from the interlock device which the handle shaft of a handle penetrates and converts rotation of a handle shaft into reciprocating motion. While providing the notch part which consists of a large-diameter hole part which followed the part, the trigger comprised from the engaging part which has a large diameter part and a small diameter part in the notch part is provided, and the malfunctioning prevention apparatus of a handle | steering-wheel is comprised. .

  In the handle malfunction prevention device of Patent Document 1, when the shoji is closed, the interlocking member can move up and down, and the large-diameter portion of the trigger does not engage with the large-diameter hole portion of the notch portion of the interlocking member. The locking and unlocking device does not work, and the handle can be rotated to open the shoji.

  On the other hand, when the shoji is opened, the large-diameter hole provided in the interlocking member that moves up and down engages the large-diameter part of the trigger to prevent the interlocking member from moving up and down, and this prevents the handle from rotating. When the paper sliding door is closed, the fingers are prevented from being caught in the opening frame.

Japanese Patent Laid-Open No. 08-312206

  However, the handle malfunction prevention device described in Patent Document 1 described above is separate from the interlocking device through which the handle shaft penetrates, and the interlocking member installed so as to be able to reciprocate along the side surface of the vertical shaft at the end of the shoji. Since it is provided, there is a problem in that the width and the design of the downspout at the tip of the shoji are affected, and other metal fittings to be provided on the downspout are limited. In addition, it is a limiting factor for the minimum height of the shoji production range.

  In addition, since the handle malfunction prevention device is provided on an interlocking member that is separate from the linkage device through which the handle shaft penetrates and is capable of reciprocating along the vertical shaft at the front of the shoji, the mounting position of the handle malfunction prevention device Cannot be adjusted, and there is a problem that it is not possible to cope with processing errors and aging.

  Therefore, the present invention has been made paying attention to such problems, and is not provided in an interlocking member installed so as to be able to reciprocate along the side surface of the saddle tip, but in a device case through which the handle shaft passes. This will not affect the width and design of the edge of the shoji, and will not restrict other metal fittings that should be installed on the saddle. An object of the present invention is to provide a handle malfunction prevention device that can easily cope with a change, and an open window provided with the device.

In order to solve the above problems, the malfunction prevention device for a handle according to the present invention is a malfunction prevention device for a handle attached to a shoji attached to an opening frame so as to be openable and closable via a handle shaft. When the shoji is closed by the opening frame in an apparatus case provided on the saddle tip of the shoji and through which the handle shaft passes, the abutting portion comes into contact with the abutted portion of the opening frame and is elastic. The engaging portion is moved away from the handle shaft against the elastic force of the member to allow the handle shaft to rotate, and when the shoji is opened from the opening frame, the cover of the opening frame is covered. Provided is a handle shaft rotation control unit that moves away from the contact portion and moves the engagement portion toward the handle shaft by the elastic force of the elastic member and prohibits rotation of the handle shaft. It is characterized by.
Here, the handle shaft is provided with a cam portion, and the handle shaft rotation control portion is a first advance / retreat provided in the device case so as to be movable back and forth toward the contacted portion of the opening frame. A member, the elastic member for urging the first advancing / retracting member, and the advancing / retreating direction of the first advancing / retreating member, which are provided in the device case so as to be movable back and forth in the direction toward the cam portion. A second direction advancement / retraction member, and the first advancement / retraction member includes a direction change skew groove or a direction change inclination for converting the advance / retreat of the first advancement / retraction member into the advance / retreat of the second advancement / retraction member. While the direction change pin guided in the row groove is provided, the second advance / retreat member is provided with the direction change pin or direction engaged with the direction change oblique groove or the direction change pin provided in the first advance / retreat member. A conversion oblique groove is provided, and the contacted portion of the opening frame The first advancing / retreating member retreats against the elastic force of the elastic member when the abutting portion on the distal end side of the first advancing / retreating member abuts, and the second advancing / retreating member is moved by the retreating of the first advancing / retreating member. When the lever is retracted from the opening frame while retreating from the handle shaft and allowing the engaging portion on the distal end side of the second advancing / retracting member to move away from the cam portion to allow the handle shaft to rotate. The contact portion on the distal end side of the first advance / retreat member is separated from the contact portion of the opening frame, and the first advance / retreat member advances by the elastic force of the elastic member, and the first advance / retreat member advances. When the second advancing / retreating member advances toward the handle shaft and the engaging portion on the distal end side of the second advancing / retreating member engages with the cam portion to inhibit the rotation of the handle shaft. good.
The cam portion may be a cam member that rotates together with the handle shaft.
In addition, the handle shaft rotation control unit has the contact portion on the front end side, the engagement portion on the rear end side, the swing hook swinging in the main body case, and the swing shaft The elastic member configured to urge the abutting portion of the hook toward the abutted portion of the opening frame, and the abutting portion abuts on the abutting portion of the opening frame, thereby the elastic member. The engagement portion on the rear end side is separated from the handle shaft against the elastic force of the handle, and the handle shaft is allowed to rotate. On the other hand, when the shoji is opened from the opening frame, The contact portion is separated from the contacted portion, and the engagement portion on the rear end side is engaged with the handle shaft by the elastic force of the elastic member to prohibit the rotation of the handle shaft. Also good.
In addition, the casement window according to the present invention is a casement window provided with the handle malfunction prevention device configured as described above.

In the handle malfunction prevention device of the present invention, and the casement provided with the handle, when the shoji is closed by the opening frame in the device case through which the handle shaft passes, the handle shaft is allowed to rotate, Since it has a handle shaft rotation control unit that prohibits the rotation of the handle shaft when it is opened from the opening frame, it does not affect the width and design of the shoji's kite, and other metal fittings to be installed on that kite It is possible to provide an apparatus for preventing malfunction of a handle that is not limited and that relaxes the restriction on the minimum height of the shoji production range.
In addition, since the handle shaft rotation control unit is provided in the device case to configure the handle malfunction prevention device, if there is a processing error in the handle malfunction prevention device or a secular change occurs, the device case is attached together with the handle. It can be dealt with by removing and repairing the handle shaft rotation control part in it, or replacing every device case, so it is possible to easily cope with machining errors and aging.
In addition, since the handle cannot be rotated when the shoji is open, the handle is turned when the shoji is closed, and there is no risk of injury due to the hand holding the handle hitting the opening frame etc. can do.

It is a front view which shows the inside view of the shoji of embodiment which concerns on this invention. It is front sectional drawing of the principal part of the malfunction prevention apparatus (state which closed the shoji) of the handle | steering_wheel of embodiment which concerns on this invention. (A)-(c) is the front view of the to-be-contacted member which comprises the malfunctioning prevention apparatus of the handle | steering_wheel of Embodiment 1, respectively, a left view, and a top view. (A)-(c) is the front view, left view, and top view of an apparatus case which respectively comprise the malfunction prevention apparatus of the handle | steering_wheel of Embodiment 1. FIG. It is the BB sectional view taken on the line in FIG.4 (c). (A)-(c) is the top view of the cam member which comprises the malfunctioning prevention apparatus of the handle | steering_wheel of Embodiment 1, respectively, a front view, and a left view. FIGS. 4A to 4D are a front view, a plan view, a right side view, and a left side view, respectively, of a first advance / retreat member that constitutes the handle malfunction prevention device according to the first embodiment. FIGS. 5A to 5D are a front view, a rear view, a right side view, and a plan view of a second advancing / retreating member constituting the handle malfunction prevention device of Embodiment 1, respectively. It is the sectional view on the AA line in FIG. FIG. 3 is an enlarged front cross-sectional view of a main part of the handle malfunction prevention device (with the shoji closed) according to the first embodiment. It is front sectional drawing which shows the state which rotated the handle | steering-wheel 90 degree | times with the malfunction prevention apparatus (state which closed the shoji) of the handle | steering_wheel of Embodiment 1. FIG. It is a top sectional view showing the state where a shoji was opened a little with respect to an opening frame, and the 1st advance and retreat member advanced a little. It is a top sectional view showing the state where the shoji was opened with respect to the opening frame and the first advance / retreat member advanced to the maximum. It is front sectional drawing of the principal part of the malfunctioning prevention apparatus (state which opened the shoji) of the handle | steering_wheel of Embodiment 1. FIG. FIG. 3 is an enlarged front sectional view of the main part of the handle malfunction prevention device (with the shoji open) according to the first embodiment. (A), (b) It is front sectional drawing which shows the state which closed the shoji in the malfunction prevention apparatus of the handle | steering_wheel of Embodiment 2 which concerns on this invention, respectively, and the state which opened the shoji.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments 1 and 2 of a handle malfunction prevention device and a casement window having the same according to the present invention will be described below with reference to the drawings. The embodiment described below is merely a specific example of the present invention, and the present invention is not limited to the embodiment described below, and may be appropriately changed within the scope of the technical idea of the present invention. Is possible.
For example, the malfunction prevention device for a handle according to the present invention can be provided not only on a window that rotates on a horizontal axis, but also on a window that rotates on a vertical axis (vertical axis rotation window, sliding window, etc.).

Embodiment 1
As shown in FIG. 1, an apparatus 1 for preventing malfunction of a handle according to Embodiment 1 includes a single-open window, a vertical sliding window, and a single-open door that are attached to an opening frame 2 provided on a wall of a house. As shown in FIG. 2, a handle shaft rotation control unit 11 that permits or prohibits the rotation of the handle shaft 12 a in the device case 10 provided on the vertical rod 31 at the front end of the shoji 3. It is configured with.

  As shown in FIG. 2, a contacted member 21 is fixed to the opening frame 2 at a location facing the device case 10 of the malfunction prevention device 1 by screws 21d.

  The abutted member 21 is configured as shown in FIGS. 3A to 3C, and includes a base metal 21b provided with screw holes 21b1 and 21b1 for fixing to the opening frame 2 on both sides, and a tip. The contacted portion 21c1 is provided by folding back the portion, and the contacted metal fitting 21c provided with the oblique position adjusting oblique long holes 21c2 and 21c2 is provided. The metal fitting 21c fixes the position adjusting screws 21a and 21a through the position adjusting oblique long holes 21c2 and 21c2 so that the metal fitting 21c with respect to the base metal fitting 21b is moved vertically and indoors in FIG. 3A. The amount of protrusion can be adjusted.

  A device case 10 of the handle malfunction prevention device 1 as shown in FIG. 2 and the like is provided in the hollow portion of the vertical rod 31 at the front end (door end side) of the shoji 3, and the handle shaft 12a is not shown. A known reciprocating motion conversion device (not shown) for converting the rotation into reciprocating motion and a known locking / unlocking device (not shown) for locking and unlocking the shoji 3 to the opening frame 2 by the reciprocating motion are provided. . Therefore, a reciprocating motion of a reciprocating motion conversion device (not shown) is applied to a vertical hook 31 at the tip of the shoji 3 as shown in FIGS. .) Is provided with an interlocking member 31a that reciprocates (slides) along the longitudinal direction of the vertical rod 31.

  The device case 10 is a case for housing the handle shaft rotation control unit 11 constituting the malfunction prevention device 1 and is attached to the vertical shaft 31 at the tip of the shoji 3 as shown in FIG. The shaft 12a penetrates and is configured as shown in FIGS. 4 (a) to 4 (c) and FIG.

  That is, the device case 10 is mounted on the screw holes 10a and 10a for fixing to the vertical rod 31 of the shoji 3 and the handle shaft 12a of the handle 12 as shown in FIGS. 4 (a) to 4 (c) and FIG. A round hole 10b through which the cylindrical portion 12b3 of the cam member 12b, which is a cam portion, is rotatably supported and through which the handle shaft 12a passes is provided.

  Further, as shown in FIG. 2, the device case 10 includes a compression spring 11 a that is an elastic member constituting the handle shaft rotation control unit 11, and first advance / retreat members 11 b and X that advance and retreat in the X direction (indoor / outdoor direction). Since the second advancing / retracting member 11c that moves back and forth in the Y direction (vertical direction) orthogonal to the direction is built in, as shown in FIGS. 4 (a) to 4 (c) and FIG. Protrusions 10c for determining the installation position of the compression spring 11a and the first advance / retreat member 11b project inward with the width of the first advance / retreat member 11b so as to guide the advance / retreat in the X direction (see FIG. 2). A pair of X-direction guide portions 10d, 10d, a Y-direction guide hole 10e extending in the Y direction so as to guide the advance / retreat of the second advance / retreat member 11c in the Y direction (see FIG. 2), and the first advance / retreat member 11b4, which will be described later, Opening 10f for protruding from the case 10 is provided.

  The cam member 12b is configured as shown in FIGS. 6A to 6C, and includes a cam portion 12b1, a square hole 12b2 into which the handle shaft 12a of the handle 12 is inserted, and a round shape of the device case 10. The cylindrical portion 12b3 is inserted into the hole 10b and rotatably supports a handle shaft 12a (see FIG. 2) of the handle 12.

  As shown in FIG. 2, the handle shaft rotation control unit 11 includes a compression spring 11a that is an elastic member, a first advance / retreat member 11b that moves forward and backward in the X direction, and a first that moves forward and backward in the Y direction orthogonal to the X direction. It is comprised from the 2 advance / retreat member 11c, and is attached in the above-mentioned apparatus case 10 so that these components can exhibit each function.

  As shown in FIG. 2, FIG. 9, FIG. 10, etc. which will be described later, the compression spring 11a has a rear end portion fitted into a convex portion 10c (see FIG. 4) in the apparatus case 10, and a front end portion is a first advance / retreat member. It is mounted so as to abut against the rear end of 11b.

  The first advancing / retracting member 11b is provided in the apparatus case 10 so as to be able to advance and retract in the X direction by being guided by a pair of X direction guide portions 10d, 10d (see FIGS. 4A to 4C and FIG. 5). As shown in FIGS. 7A to 7D, the second forward / backward movement of the spring distal end accommodating portion 11b1 in which the distal end portion of the compression spring 11a is accommodated and the second forward / backward member 11c is movably fitted in the Y direction. The member loose fitting portion 11b2, the direction change pin 11b3 for transmitting the movement of the first advance / retreat member 11b in the X direction to the second advance / retreat member 11c and changing the direction, and the contacted portion attached to the opening frame 2 side It has a tip contact portion 11b4 that contacts the contacted portion 21c1 of the member 21.

  The second advancing / retracting member 11c is orthogonal to the Y direction (see FIG. 4) in conjunction with the advancing / retreating movement of the first advancing / retreating member 11b in the X direction in the device case 10 (see FIGS. 4A to 4C and FIG. 5). As shown in FIGS. 8A to 8D, it is inserted into the Y-direction guide hole 10e (see FIG. 4A) of the device case 10 and moved forward and backward. The Y direction guide pins 11c1 and 11c1 for guiding the movement of the member 11c in the Y direction and the direction changing pin 11b3 (see FIGS. 7A and 7B) of the first advancing / retracting member 11b are inserted, and the first. A direction-changing oblique groove 11c2 that converts the movement of the advancing / retracting member 11b in the X direction into a Y direction orthogonal to the X direction, and a tip engagement that engages with the tip of the cam member 12b mounted on the handle shaft 12a of the handle 12 Part 11c3.

  In this description, the tip engaging portion 11c3 engages with the cam member 12b that rotates together with the handle shaft 12a. However, a cam portion may be provided on the handle shaft 12a to directly engage the handle shaft 12a. .

  Next, the operation of the handle malfunction prevention device 1 of the first embodiment configured as described above will be described.

<State in which the shoji 3 is closed to the opening frame 2>
First, the state in which the shoji 3 is closed to the opening frame 2 will be described.

  When the shoji 3 is closed by the opening frame 2, as shown in FIG. 2, FIG. 9 showing a cross section along line AA in FIG. 2, and FIG. 10 showing an enlarged main part of FIG. Since the tip contact portion 11b4 of the first advance / retreat member 11b is in contact with the contacted portion 21c1 of the contacted member 21 attached to 2, the first advance / retreat member 11b is pushed in the X1 direction in FIG. In this state, the compression spring 11a is also contracted.

  At that time, as shown in FIG. 10, the second advancing / retracting member 11c is accommodated in the second advancing / retreating member loosely fitting portion 11b2 of the first advancing / retreating member 11b, and the direction change of the first advancing / retreating member 11b is changed to the direction changing oblique groove 11c2. The pin 11b3 is fitted and is in the maximum retracted state most retracted (retracted) in the Y1 direction which is the downward direction in FIG.

  In this case, as shown in FIG. 2, FIG. 9, FIG. 10, etc., even if the cam member 12b attached to the handle shaft 12a of the handle 12 rotates according to the rotation of the handle 12, the second advance / retract member 11c is Y1. Since it is in the maximum retracted state that is most retracted in the direction, the distal end portion of the cam member 12b does not engage with the distal end engaging portion 11c3 of the second advance / retreat member 11c.

  Therefore, in the state where the shoji 3 is closed by the opening frame 2, even if the handle 12 is rotated from the horizontal state as shown in FIG. 2 or the like to the vertical state as shown in FIG. Since it does not engage with the front end engaging portion 11c3 of the second advance / retreat member 11c, it can be freely rotated.

  As a result, a locking / unlocking device (not shown) is made to function in accordance with the rotation of the handle 12, and the shoji 3 is locked (locked) to the opening frame 2 or unlocked (free) to the opening frame 2. Can be in a state.

  In this description, for example, when the handle 12 is in a horizontal (horizontal) state as shown in FIGS. 2 and 10, a locking / unlocking device (not shown) is unlocked, and the shoji 3 is opened to the opening frame. When the handle 12 is in the vertical (downward) state as shown in FIG. 11, the unlocking device (not shown) is locked and the shoji 3 is opened. Although it is assumed that the frame 2 is locked and not opened, the opposite may be possible.

<The state in which the shoji 3 is opened from the opening frame 2>
Next, a state where the shoji 3 is opened from the opening frame 2 will be described.

  As described above, when the handle 12 is in the horizontal (sideways) state as shown in FIGS. 2 and 10, the locking / unlocking device (not shown) is in the unlocked state, and the shoji 3 is located with respect to the opening frame 2. Since it is in a free (openable / closable) state, when the user grasps the handle 12 and pushes it in the opening direction, the shoji 3 gradually opens with respect to the opening frame 2 in the Z1 direction in FIGS.

  Then, as shown in FIGS. 12 and 13, the first advancing / retreating member 11b that has been in contact with the contacted portion 21c1 on the opening frame 2 side has its tip contact portion 11b4 on the contacted member on the opening frame 2 side. It moves away from 21 and progresses in the X2 direction by the elastic force of the compression spring 11a.

  When the first advance / retreat member 11b advances in the X2 direction, as shown in FIGS. 14 and 15, the direction changing pin 11b3 of the first advance / retreat member 11b also advances in the X2 direction, so that the Y-direction guide pins 11c1, 11c1 and the device case 10 The second advancing / retracting member 11c slidable in the Y direction by the Y-direction guide hole 10e is guided by the movement in the X2 direction of the direction changing pin 11b3 of the first advancing / retracting member 11b guided by being fitted in the direction changing oblique groove 11c2. It advances toward the handle shaft 12a in the Y2 direction, that is, in FIGS.

  Here, when the shoji 3 is opened from the opening frame 2, the handle 12 is in a horizontal (sideways) state to bring the locking / unlocking device (not shown) into the unlocked state as described above. As shown in FIGS. 14 and 15, the cam member 12b attached to 12a faces downward in the vertical direction, that is, in the Y1 direction.

  Therefore, when the second advancing / retracting member 11c moves in the Y2 direction, the distal end engaging portion 11c3 of the second advancing / retreating member 11c engages with the distal end portion of the cam portion 12b1 of the cam member 12b.

  Then, in the state where the shoji 3 is opened from the opening frame 2, as shown in FIG. 14 and FIG. 15, the handle 12 is in a horizontal (sideways) state, and the distal end engaging portion 11c3 of the second advance / retreat member 11c is connected to the cam member 12b. Since the rotation of the handle shaft 12a is indirectly prohibited via the cam member 12b, the handle 12 cannot be rotated from the horizontal (lateral) state.

  As a result, when the user opens the shoji 3 from the opening frame 2, the handle 12 does not rotate from the horizontal (horizontal) state, and therefore, when the shoji 3 is closed, a finger or the like holding the handle 12 is moved to the opening frame 2. It can prevent pinching.

  Therefore, according to the handle malfunction prevention device 1 of the first embodiment, when the shoji 3 is closed by the opening frame 2 in the device case 10 through which the handle shaft 12a passes, the rotation of the handle shaft 12a is permitted. On the other hand, when the shoji 3 is opened from the opening frame 2, the handle shaft rotation control unit 11 that prohibits the rotation of the handle shaft 12 a is provided, so that the width and design of the vertical shaft 31 of the shoji 3 are not affected. In addition, it is possible to provide a handle malfunction prevention device that does not restrict other metal fittings to be provided on the vertical rod 31 and relaxes the restriction on the minimum height of the shoji production range.

  Further, since the handle shaft rotation control unit 11 is provided in the device case 10 to constitute the handle malfunction prevention device 1, the handle malfunction prevention device 1 has a processing error or a secular change occurs when the handle malfunctions. 12 can be dealt with by removing the device case 10 and repairing the handle shaft rotation control unit 11 in the device case 12 or replacing the device case 10 with each other, so that it is possible to easily cope with machining errors and secular changes. it can.

  In the above description, the handle shaft 12a of the handle 12 has been described as the handle shaft 12a having a square cross section. However, in the present invention, the present invention is not limited to this, and the cross section may of course be a rectangle or a polygon. .

  In the above description, the first advancing / retracting member 11b is provided with the direction changing pin 11b3, while the second advancing / retreating member 11c is provided with the direction changing oblique groove 11c2. However, the present invention is not limited thereto. Of course, the first advancing / retreating member 11b may be provided with the direction changing oblique groove 11c2, while the second advancing / retreating member 11c may be provided with the direction changing pin 11b3.

  In the above description, a reciprocating interlocking member 31a for transmitting the reciprocating motion of a reciprocating motion conversion device (not shown) to the locking / unlocking device (not shown) is provided on the vertical rod 31 at the tip of the shoji 3. As described above, the present invention is not limited to this, and when the locking / unlocking device (not shown) is directly driven by the handle shaft 12a, the reciprocating motion conversion device (not shown) and the interlocking member 31a are omitted. be able to.

Embodiment 2
In the description of the first embodiment, the handle shaft rotation control unit 11 is moved in the Y direction perpendicular to the X direction and the compression spring 11a that is an elastic member, the first advance / retreat member 11b that moves forward and backward in the X direction. The second advance / retreat member 11c that moves forward and backward has been described, but the present invention is not limited to this structure, and may be configured as in the second embodiment.

  In other words, the handle malfunction prevention device 1 according to the second embodiment includes, for example, the handle shaft rotation control unit 11 and the swing central shaft 10g of the device case 10 as shown in FIGS. 16 (a) and 16 (b). It is characterized by comprising a swing hook 11d swinging in the center and a torsion spring (torsion spring) 11e.

  The swing hook 11d swings about the swing center axis 10g of the device case 10, and has a tip contact with the contacted portion 21c1 of the contacted member 21 on the opening frame 2 side on the tip side. While having the portion 11d1, the rear end side has a rear end engaging portion 11d2 that directly engages the handle shaft 12a of the handle 12.

  The center of the torsion spring (torsion spring) 11e is inserted into the swinging center shaft 10g of the device case 10, and one end is locked to the tip contact portion 11d1 of the swinging hook 11d, while the other end The portion is locked to the spring locking portion 10h of the device case 10, and always biases the tip contact portion 11d1 of the swinging hook 11d toward the contacted member 21 on the opening frame 2 side.

  That is, as shown in FIG. 16A, in the state where the shoji 3 is closed by the opening frame 2, the swinging hook 11d is attached to the contacted portion 21c1 of the contacted member 21 attached to the opening frame 2. The tip contact portion 11d1 is pressed, and the rear end engaging portion 11d2 of the swinging hook 11d is not engaged with the handle shaft 12a of the handle 12.

  Therefore, in this case, the handle 12 can freely rotate, and the shoji 3 can be locked to the opening frame 2 by a locking / unlocking device (not shown) according to the rotation of the handle 12, Or it can be in a free (openable and closable) state.

  On the other hand, when the shoji 3 is opened from the opening frame 2, the tip contact portion 11d1 of the swinging hook 11d does not come into contact with the contacted member 21 on the opening frame 2 side and is not pressed. ), The torsion spring 11e is rotated counterclockwise.

  As a result, as shown in FIG. 16B, the rear end engaging portion 11d2 of the swinging hook 11d opposite to the front end abutting portion 11d1 is directly engaged with the handle shaft 12a of the handle 12, thereby Since the rotation of the shaft 12a is prohibited, the rotation of the handle 12 can be prevented.

  Therefore, according to the handle malfunction prevention device 1 of the second embodiment, the handle comprising the swing hook 11d and the torsion spring 11e is provided in the device case 10 provided in the vertical rod 31 at the tip of the shoji 3 and through which the handle shaft 12a passes. Since the shaft rotation control unit 11 is provided, like the handle malfunction prevention device 1 according to the first embodiment, the shaft 31 should be provided without affecting the width and design of the shovel 31 of the shoji 3. It is possible to provide a handle malfunction prevention device that does not restrict other metal fittings and relaxes the restriction on the minimum height of the shoji production range.

  In the above description of the first and second embodiments, the device case 10 of the handle malfunction prevention device 1 has been described as being incorporated in the vertical shaft 31 at the front end of the shoji 3, but the device case 10 penetrates the handle shaft 12a. Since it is sufficient, it may of course be provided so as to protrude outside the downboard 31 instead of in the downboard 31 at the front end of the shoji 3.

  Further, the abutted member 21 is not a separate component, and a shape with which the tip abutting portion 11d1 abuts may be provided integrally with the opening frame 2.

DESCRIPTION OF SYMBOLS 1 Handle malfunction prevention apparatus 10 Apparatus case 10a Screw hole 10b Round hole 10c Protrusion part 10d X direction guide part 10e Y direction guide hole 10f Opening part 11 Handle shaft rotation control part 11a Compression spring (elastic member)
11b First advancing / retracting member 11b1 Spring tip accommodating portion 11b2 Second advancing / retracting member loose fitting portion 11b3 Direction change pin 11b4 Tip contact portion 11c Second advance / retreat member 11c1 Y direction guide pin 11c2 Direction change oblique groove 11c3 Tip engagement portion 11d Swing Hook 11d1 Front end contact portion 11d2 Rear end engagement portion 11e Torsion spring (elastic member)
12 Handle 12a Handle shaft 12b Cam member 2 Opening frame 21 Abutting member 21a Position adjusting screw 21b Base bracket 21b1 Screw hole 21c Abutting bracket 21c1 Abutting portion 21c2 Position adjusting skewed long hole 21d Screw 3 Shoji 31 Vertical ３１ 31a Interlocking member

Claims (5)

A malfunction prevention device for a handle attached to a shoji attached to an opening frame so as to be openable and closable via a handle shaft,
When the shoji is closed by the opening frame in an apparatus case provided on the saddle tip of the shoji and through which the handle shaft passes, the abutting portion comes into contact with the abutted portion of the opening frame and is elastic. The engaging portion is moved away from the handle shaft against the elastic force of the member to allow the handle shaft to rotate, and when the shoji is opened from the opening frame, the cover of the opening frame is covered. Provided is a handle shaft rotation control unit that moves away from the contact portion and moves the engagement portion toward the handle shaft by the elastic force of the elastic member and prohibits rotation of the handle shaft. A handle malfunction prevention device characterized by The handle malfunction prevention device according to claim 1,
While the handle shaft is provided with a cam portion,
The handle shaft rotation control unit is
A first advancing / retracting member provided in the device case so as to be movable back and forth toward the contacted portion of the opening frame;
The elastic member for biasing the first advance / retreat member;
A second advancing / retreating member provided in the device case so as to be capable of advancing / retreating in a direction intersecting with the advancing / retreating direction of the first advancing / retreating member and moving toward the cam portion;
The first advancing / retracting member has a direction changing skew groove for converting the advancing / retreating movement of the first advancing / retreating member into the advancing / retreating movement of the second advancing / retreating member or a direction changing pin guided by the direction changing skew groove On the other hand, the second advancing and retracting member is provided with a direction changing pin or a direction changing oblique groove that engages with the direction changing skew groove or the direction changing pin provided in the first advancing and retracting member,
The first advancing / retracting member retreats against the elastic force of the elastic member by abutting the abutting portion on the distal end side of the first advancing / retreating member with the abutted portion of the opening frame, and the first advancing / retreating member The second advancing / retracting member retracts from the handle shaft by retreating to disengage the engaging portion on the distal end side of the second advancing / retreating member from the cam portion, and permits the handle shaft to rotate, Is opened from the opening frame, the abutting portion on the distal end side of the first advancing / retracting member is separated from the abutted portion of the opening frame, and the first advancing / retreating member is advanced by the elastic force of the elastic member. As the first advance / retreat member advances, the second advance / retreat member advances toward the handle shaft, and the engagement portion on the distal end side of the second advance / retreat member engages with the cam portion. Handle malfunction prevention device characterized by prohibiting rotation . In the handle malfunction prevention device according to claim 2,
The apparatus for preventing malfunction of a handle, wherein the cam portion is a cam member that rotates together with the handle shaft. The handle malfunction prevention device according to claim 1,
The handle shaft rotation control unit is
A swinging hook having the abutting part on the front end side and the engaging part on the rear end side and swinging in the main body case;
The elastic member that urges the contact portion of the swing hook toward the contacted portion of the opening frame,
When the abutting portion abuts against the abutted portion of the opening frame, the engaging portion on the rear end side is separated from the handle shaft against the elastic force of the elastic member, and the handle shaft is rotated. On the other hand, when the shoji is opened from the opening frame, the contact portion is separated from the contacted portion of the opening frame, and the engagement portion on the rear end side is moved by the elastic force of the elastic member. An apparatus for preventing malfunction of a handle, characterized in that the handle shaft is engaged to prohibit rotation of the handle shaft.   An opening window comprising the handle malfunction prevention device according to any one of claims 1 to 4.

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