JPH0122433B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention includes a handle shaft integral with the handle mounted on a handle base so as to be rotatable, and a locking arm fitted between the handle base of the handle shaft and the handle moved in the locking direction of the handle. This relates to a tightening handle device that can be rotated from an unlocked position to a locked position by rotating the handle.More specifically, it is attached to a sliding frame of a shoji screen, and the pulling mechanism inside the sliding frame is activated by rotating the handle. This invention relates to a tightening handle device for a soundproof sash, in which a locking arm is engaged with a seat attached to a joining stile or mullion of the other shoji to draw and pull the shoji.

Generally, in the case of a pulling mechanism in a stile that is activated by the rotation of the handle of a tightening handle device, the pulling start angle (handle The handle is designed to rotate 150 degrees as described below, and the pulling start angle is approximately the middle angle position of the full rotation angle of this handle), at which point the inner and outer shoji come into pressure contact with the airtight material of the window frame. For the first time, the movement of the inner and outer shoji in the opening and closing directions becomes heavier, so the handle moves approximately in the locking direction.
Until the locking arm rotates 80 degrees, the locking arm is rotated to the drawing possible position (in this specification, the position where the locking arm bites into the catch and the shoji can be drawn is referred to as the drawing possible position). If this is not the case, when the locking arm comes into contact with the catch, the shoji will not be drawn and moved, and the middle part of the stile will bend inward and outward, causing the catch to lock. The locking arm may escape from the arm, causing the locking arm to not engage properly with the catch, resulting in a locking error and the need to redo the locking operation of the handle.

However, in conventional locking handle devices of this type, in order to place emphasis on safety, the handle is rotated in the locking direction so that the handle does not protrude far into the room when the lock is completed. First, only the handle rotates about 60 degrees, and then the locking arm rotates together with the handle about 90 degrees from the unlocked position to the locked position. Therefore, when the locking arm comes into contact with the catch, the handle is always rotated approximately 90 degrees from the unlocked position in the locking direction. Therefore, in such a tightening handle device connected to the above-mentioned pulling mechanism, the locking arm does not bite into the catch when the handle is operated, and the locking arm is only able to engage with the catch. Even when the shoji is closed, it is still possible to draw the shoji by operating the handle.
There was an operational drawback in that the driver could not pull the vehicle closer and had to operate the steering wheel again.

Therefore, in view of the above-mentioned drawbacks of the conventional device, the present invention is designed to allow the handle to be rotated further relative to the locking arm in the locked state for safety. At the time when the locking arm contacts the strike plate, the handle is rotated by a small angle, approximately the same as the locking arm, and the locking arm is rotated before the pulling mechanism inside the stile begins to make the shoji and window frame airtight. The object is to provide a tightening handle device in which the king arm is brought into contact with the catch seat to improve the grip of the locking arm on the catch seat, and the handle shaft is
In a tightening handle device that is connected to a pulling mechanism in a stile that starts airtightly pulling the shoji and window frame together at a pulling start angle that is approximately in the middle of the full rotation angle of the handle shaft, the locking arm is connected to the handle. Fitted onto the shaft so as to be movable in the axial direction, first and second cylindrical end cams are mounted on the opposing surfaces of the handle pedestal and the locking arm, and third and fourth cylindrical end cams are mounted on the opposing surfaces of the locking arm and the handle. are formed, respectively, and by rotating the handle in the locking direction, the handle and locking arm are rotated together from the unlocked position to the drawable position, and then the locking arm is moved toward the handle base, and It is characterized in that the handle and the locking arm are configured to rotate relative to each other.

Next, one embodiment of the present invention will be described in detail based on the drawings.

In Figures 1 to 3, 1 is an airtight sash outer shoji, 2 is a joining frame of the outer shoji 1, 3 is a glass plate, 4 is an airtight material, 5 is an inner shoji, and 6 is the inner shoji 5. The stile 7 also shows a glass plate. Reference numeral 8 denotes a tightening handle device attached to the joining frame 2 of the outer shoji 1. Next, this tightening handle device 8 will be explained. Reference numeral 9 denotes a handle pedestal attached to the inner surface of the stile 2 of the outer shoji 1 with screws 10, and a shaft hole 9a is bored in the center. Further, as shown in FIGS. 4A and 5, on the upper surface 9b of this handle pedestal 9, a rotation-stopping protrusion 11 with an opening angle θ1 (180 degrees in the drawing) is formed around the shaft hole 9a. The stopper wall 11 has an opening angle θ2 on the opposing surface facing the locking arm 18, which will be described later.
(90 degrees in the drawing) and a predetermined distance l1 (for example, 3 mm) from the first cam upper surface 12a.
Opening angle θ3 (60 degrees in the drawing)
the first cam lower surface 12c, and the top of these first cams,
A first cylindrical end face cam 12 (hereinafter referred to as the first cam 12) is formed as an end face cam, and is formed with a first cam slope 12b having an opening angle θ4 (30 degrees in the drawing) connecting the lower surfaces 12a and 12c. A handle shaft 14 having a handle 13 integrally fixed to one end thereof is rotatably fitted into the shaft hole 9a of the handle base 9. This handle shaft 14 is connected to a pulling mechanism, which will be described later, which is built into the joining frame 2 of the outer shoji 1, and the pulling mechanism is operated by rotating the handle shaft 14 in the locking direction. There is. An engagement wall 16 with an opening angle θ5 (90 degrees in the drawing) is formed on the boss 15 of the handle 13.
6, as shown in FIG. 4D and FIG. 6, a fourth cam lower surface 17c is provided on the opposing surface facing the locking arm 18, which will be described later, and the fourth cam lower surface 17c is raised by a predetermined amount l2. Opening angle θ6 (105 in the drawing)
A fourth cylindrical end surface cam as an end surface cam consisting of a fourth cam upper surface 17a with an angle of .degree. 17 (hereinafter referred to as 4th
A cam 17) is formed. As shown in FIG. 3, a locking arm 18 is fitted into the handle shaft 14 so as to be rotatable and axially movable between the handle 13 and the handle base 9. This locking arm 18 is rotatably equipped with a roller 19 at its tip, and has a shaft hole 18 at its base for inserting the handle shaft.
A is drilled. Also, the base of this locking arm 18 has an opening angle θ8 toward the handle base 9 side.
A boss 20 is formed at an angle of 255 degrees (255 degrees in the drawing), and the boss 20 has a handle pedestal 9 on the opposite surface facing the handle pedestal 9 as shown in FIGS. 4B and 5.
An engagement wall 21 is formed with an opening angle θ9 (90 degrees in the drawing) that can engage with the rotation stopper wall 11 of The second cam lower surface 22c is formed into a planar shape, and the opening angle θ10 (in the drawing) is formed to be higher by a predetermined amount l3 than the second cam lower surface 22c.
A second cylinder as an end cam consisting of a second cam upper surface 22a with an angle of 135 degrees) and a second cam slope 22b with an opening angle θ11 (30 degrees in the drawing) connecting the second cam upper surface 22a and the second cam lower surface 22c. End cam 22
(hereinafter referred to as second cam 22) is formed.
As shown in FIG. 9 C1, this second cam 22 moves the locking arm 18 from the unlocked position to the locked direction at a predetermined angle θ12 (75 degrees in the drawing) with respect to the handle base 9.
The relative position of the second cam slope 22b is set so that it can match the first cam 12 with almost no gap when rotated, and the opening angle θ11 of the second cam slope 22b and the opening of the first cam slope 12b Angle θ4,
The predetermined heights l1 and l3 are set to be equal. The above angle θ12 is the angle at which the movement of the locking arm 18 toward the handle base 9 by rotating the handle 13 in the locking direction is completed, and is not necessarily 75
Although the angle is not limited to 90 degrees, it is preferable that the angle is somewhat smaller than 90 degrees, which is the angle at which the locking arm 18 completes pulling. When the locking arm 18 is in the unlocked position, the engagement wall 21 has a play in the locking direction at an angle θ17 (90 degrees in the drawing) with the rotation stopper wall 11 of the handle base 9, as shown in FIG. 9A1. The relative position is set to . Further, an engagement wall 23 having an opening angle θ13 (210 degrees in the drawing) that can engage with the engagement wall 16 of the handle 13 is formed at the base of the locking arm 18. As shown in FIG. 4C and FIG. 6, a third cam upper surface 24a with an opening angle θ14 (120 degrees in the drawing) is formed on the opposing surface facing the third cam upper surface 24a, and a predetermined amount l4 is formed lower than the third cam upper surface 24a. The lower surface 24c of the third cam has an opening angle θ15 (45 degrees in the drawing), and the upper and lower surfaces 24a of these third cams.
24c and a third cam slope 24b with an opening angle θ16 (45 degrees in the drawing).
is formed. The relative position of the third cam slope 24b is set so that the third cam 24 can match the fourth cam 17 with almost no gap when the locking arm 18 and the handle 13 are oriented in the same direction. The opening angle θ16 of the slope 24b, the opening angle θ7 of the fourth cam slope 17b, and the predetermined heights l4 and l2 are set to be equal, respectively. Further, the predetermined amount l4 is set to be equal to the predetermined amount l3 of the second cam 22. When the locking arm 18 and the handle 13 are in the same direction, the engagement wall 23 is attached to the handle 1 as shown in FIG. 9A2.
The relative position is set so that there is play in the unlocking direction at an angle θ18 (60 degrees in the drawing) with the engagement wall 16 of No. 3. Furthermore, in the locking arm 18, the second cam 22 and the third cam 24 are approximately sandwiched between the first cam 12 and the fourth cam 17 when the handle 13 is rotated to the maximum extent in the unlocking direction and the locking direction. The distance between the handle pedestal 9 and the handle 13 is set so that the locking arm 18 is in the locked state and movement in the direction of the handle shaft 14 is prevented.
The angle θ19 (45
degree) until the rotated position (drawable position a2), the fourth cam slope 17b and the third cam slope 24b engage, and the handle 13 rotates integrally with the handle 13 from the unlocked position to the locking direction. It is becoming more and more common.
The size of this angle θ19 is such that when the locking arm 18 comes into contact with a catch seat 25, which will be described later, it can reliably bite into this catch seat if the middle part of the joining stile does not bend toward the interior or outside. possible rotational positions (typically 35
degree).

Next, 25 is a screw 26 on the outer surface of the connecting frame 6,
As the locking arm 18 rotates in the locking direction, the rollers 19 of the locking arm 18 engage with the upper surface of the catch seat attached at 26 to pull the outer and inner shoji 1 and 5 together. A locking receiver 27 is integrally provided. Further, when the roller 19 of the locking arm 18 rotates toward the locking receiver 27, the roller 19 and the tip of the support shaft 19a of the roller 19 engage with the catch seat 25, and the outer shoji 1, A tapered surface 28 is formed to perform a draw of 5.

Next, a drawing mechanism in the connecting frame 2 shown in FIG. 10 will be explained. In this pulling mechanism, reference numeral 29 denotes a support fitting attached to the middle part of the connecting frame 2, which rotatably supports the handle shaft 14.
A crank 30 is fixed to this handle shaft 14, and a crank pin 31 at the tip of this crank 30
is engaged with the long hole 32a of the slider 32.
A connecting rod 33 is welded to the upper end of the slider 32, and a pulling piece 34 made of synthetic resin is connected to the upper end of the connecting rod 33. This pulling piece 34 is moved around the upper frame by rotating the handle 13. It engages with the pulling piece 35 to pull the upper part of the outer shoji 1 together. Also, a connecting plate 3 is provided at the lower end of the slider 32.
A connecting rod 37 integral with 6 is fixed so as to be adjustable upwardly and downwardly. The lower end of this connecting plate 36 is connected to the connecting frame 2.
L-shaped rotating member 38 rotatably pivoted to
The other arm 38b is connected to one arm 38a of the
is engaged with the rail 39 to draw the lower part of the outer shoji 1 together. And this rail 39
The rotating member 38, the pulling piece 35, and the pulling piece 34 move the outer and inner shoji 1, 5 when the handle 13 is rotated approximately 80 degrees from the unlocked position to the locked direction. Start contacting the airtight material of the window frame, and then turn the handle 13 to remove it.
The inner shoji 1 and 5 are configured to be pressed against the airtight material of the window frame.

Next, the action of the tightening handle device 8 with the above structure is determined by moving the inner shoji 1, 5 in the closing direction and releasing the inner shoji 1, 5. Due to the repulsive force of the pulling members, etc., the outer and inner shoji 1 and 5 do not close completely, resulting in a relatively large positional shift between the stile 2 and the stile 6, as shown in Figure 2. Let me explain the case.
First, when the handle 13 is rotated from the unlocked position a1 in FIG. 1 (the state of each cam slope at this time is shown in FIG. 9 A1 and A2) in the locking direction,
The fourth cam slope 17b of the fourth cam 17 and the third cam slope 24 of the third cam 24 of the locking arm 18
b is engaged, and the first and second cam upper surfaces 12
a, 22a are in sliding contact and the locking arm 18 is prevented from moving in the direction of the handle pedestal 9. Therefore, the handle 13 and the locking arm 18 remain integrated from the unlocked position a1 when the locking arm 18 is moved toward the handle pedestal 9. The second cam slope 22b and the first cam slope 12b of the handle pedestal 9 begin to engage at the drawing possible position a2 in Fig. 1 (from the unlocked position a1 in the locking direction as shown in Fig. 9 B1 and B2 in the drawing) Rotate to the 45 degree rotated position). Locking arm 18
While being rotated to this position, the roller 19 of the locking arm 18 and the tip of the support shaft 19a of the roller 19 engage with the tapered surface 28 of the catch seat 25, and then,
The outer and inner shoji 1 and 5 begin to be drawn in the closing direction, and at the same time, the locking arm 18 receives a reaction force accompanying the drawing of the outer and inner shoji 1 and 5. As described above, when the locking arm 18 starts pulling the outer and inner shoji 1 and 5, the amount of rotation of the handle 13 from the unlocked position a1 is as small as the amount of rotation of the locking arm 18, and the pulling mechanism Since the pulling start angle has not been reached, the pulling mechanism inside the sliding stile 2, which is moved by the rotation of the handle 13 in the locking direction, moves the outer and inner sashes 1 and 5 to the window frame (not shown). Since there is no pressure contact with the airtight material and no large resistance is applied to the outer and inner shoji 1 and 5 in the drawing direction, the outer and inner shoji 1 and 5 are closed without escaping from each other in the indoor-outdoor direction (frame direction). This causes the locking arm 1 to move in the direction of
8 firmly bites into the catch seat 25. After that, when the handle 13 is further rotated, the first and second cam upper surfaces 1
The sliding contact between 2a and 22a comes off, and the locking arm 1
The second cam slope 22b of 8 is the first cam slope 22b of the handle base 9.
Although the locking arm 18 begins to face the cam slope 12b, the locking arm 18 receives a reaction force in a direction that prevents rotation, so the locking arm 18 moves toward the third cam slope 2.
4b and the fourth cam slope 17b of the handle 13, the handle 13 is pushed toward the handle base 9. Therefore, the locking arm 18 is connected to the second cam slope 22b.
is moved toward the handle pedestal 9 while engaging with the first cam slope 12b of the handle pedestal 9, and is also rotated in the locking direction. Starting to climb 24b relatively, rocking arm 1
8 begins to rotate in the locking direction. Then, the handle 13 is rotated 120 degrees in the locking direction as shown in FIG. 9 C2 to the axial movement completion position a.
5 (at this time, the locking arm 18 completes its axial movement), the locking arm 18 is moved toward the handle base 9 by a predetermined amount l1 (=l2, l3, l4), and the second cam slope 22b is moved to the second cam slope 22b. As shown in FIG. 9C1, the cam is completely engaged with the first cam slope 12b of the handle base 9. At this time, locking arm 1
8 is rotated from the unlocked position a1 to the position a3 in FIG. 1, which is rotated 75 degrees in the locking direction. Therefore, the tip of the roller 19 or the support shaft 19a of the locking arm 18 pushes the tapered surface 28 of the seat 25 in the shoji closing direction by the rotation of the locking arm 18 and the movement toward the handle base 9. Outside, inside shoji 1,
After 5 is largely drawn, the tapered surface 28 is relatively almost on top of the other, and the drawing of the outer and inner shoji 1 and 5 is almost completed, and the outer and inner shoji 1 and 5 are almost completely closed. Make it. In addition to the above, the drawing amount of the inner shoji 1 and 5 is that the locking arm 18 has a tapered surface 28.
The amount and locking arm 1 caused by riding on the
8 is the sum of the amount l1 moved toward the handle pedestal 9 side, which is larger by the amount l1 than that of the conventional device, and the outer and inner shoji 1 and 5 can be separated by that much. When the handle 13 is rotated 120 degrees in the locking direction as described above, the fourth cam slope 17b of the handle 13 ascends the third cam slope 24b of the locking arm 18, and the third and fourth cam upper surfaces 17a, 24a starts sliding contact. The handle 13 then locks the engaging wall 16 into the locking arm 18.
The handle 1 until it touches the engagement wall 23 (the position where the handle 13 is rotated 135 degrees in the locking direction)
When the handle 13 is rotated 135 degrees in the locking direction, the engagement wall 16 engages with the engagement wall 23, and the subsequent rotation of the handle 13 in the locking direction causes the locking to occur. The arm 18 is forcibly rotated in the locking direction. After that, the handle 13 is rotated 150 degrees in the locking direction (position a6 in Figure 1).
When the handle 13 is rotated to the locking direction, the locking arm 18 is rotated 90 degrees to the locking direction (position a4 in FIG. 1) as shown in FIG. 9 D2, and at this time, Locking arm 1
As shown in FIG. 9 D1, the engaging wall 21 of the locking arm 18 is engaged with the rotation preventing protruding wall 11 of the handle base 9, and the locking arm 18 is prevented from further rotation, and at the same time, the handle 13 is also prevented from rotating further. Rotation is prevented.
As mentioned above, the locking arm 18 is
When the rollers 19 are rotated from the position 3 to the locking position a4, the rollers 19 engage with the locking receivers 27 of the seats 25 and pull the intermediate parts of the connecting frames 2 and 6 of the outer and inner shoji 1 and 5 toward each other. Then, the connecting frame 6 is crimped onto the airtight material 4. Also, while rotating the handle 13 from the position a2 in FIG. 1 to the position a6 in FIG. The upper and lower ends of the stile 2 are drawn toward the indoor side, and the airtight material 4 is crimped to the stile 6, and the stile 6 is crimped to the airtight material of the window frame. When the handle 13 is rotated to the locked position as described above, the handle 13 is rotated 150 degrees from the unlocked position a1 and faces diagonally downward, which is safe because the handle 13 does not protrude far into the room. be.

Next, when releasing the outer and inner shoji 1 and 5, rotate the handle 13 in the unlocking direction, and the engaging wall 16 of the handle 13 will be at the a4 (90 degree) position in FIG. comes into contact with the engagement wall 23 of the locking arm 18, the locking arm 18 and the handle 13 become one, and thereafter the locking arm 18 and the handle 13 are rotated together. When the locking arm 18 is at position a3 (75 degrees) in FIG. By the time 13 reaches position a2 (45 degrees) in FIG. are opposed to each other, and then the handle 13 and the locking arm 18 are returned to the original unlocked position a1.

Note that the present application is not limited to the above embodiment; for example, the predetermined height of each end cam may be a small amount that allows the handle to lock and rotate the locking arm. , it is also possible to make changes within the range that can achieve the purpose of the present application.

As described above, in the present invention, the handle shaft is configured to start pulling the shoji and window frame airtightly at a pulling start angle that is approximately in the middle of the full rotation angle of the handle shaft. In the locking handle device that is connected to the locking mechanism, when the handle is rotated in the locking direction, the handle and locking arm are rotated almost integrally from the unlocked position to the drawable position. The pulling mechanism inside the frame allows the locking arm to come into contact with the catch before starting to press the shoji to the airtight material of the window frame, so that when the locking arm comes into contact with the catch, You can move the shoji smoothly with light force and make this locking arm stick to the catch.
This has the effect of allowing the locking operation using the handle to be carried out reliably and easily. Furthermore, even if the handle and locking arm are designed to rotate almost integrally from the unlocked position to the drawing position as described above, the handle and locking arm will rotate relative to each other after that. Therefore, when the door is fully locked, the handle can be rotated to a position where it does not protrude far into the room, which has the safety effect of reducing the risk of injury from hitting the handle. . Furthermore, since the locking arm is rotated and moved by the rotation of the handle using the end cam, there is an operational advantage that the lock can be easily locked simply by rotating the handle.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; FIG. 1 is a front view of the locking handle device, FIG. 2 is a sectional view of the handle in FIG. 1 when it is in the unlocked position, and FIG. A right side view with some parts omitted, A in Fig. 4 is a front view of the handle pedestal, B is a rear view of the locking arm, C is a front view of the locking arm, D is a rear view of the handle, and Fig. 5 is a Figure 6 is an exploded perspective view of the handle pedestal and locking arm, Figure 6 is an exploded perspective view of the locking arm and handle, Figure 7 is a sectional view of Figure 1, and Figure 8 is the right side with a portion of Figure 7 omitted. side view,
A1, A2, B1, B2, C1, C2 in Fig. 9,
D1 and D2 are explanatory views of the operation of each end cam, and FIG. 10 is a front view of the pulling mechanism. 9...Handle pedestal, 11...Rotation stopper wall,
12...First cylindrical end cam, 13...Handle,
14... Handle shaft, 15... Boss, 17... Fourth cylindrical end cam, 18... Locking arm, 2
0... Boss, 22... Second cylindrical end cam, 23...
...Engagement wall, 24...Third cylindrical end surface cam.

Claims (1)

[Claims] 1. A handle shaft integral with the handle is rotatably attached to a handle pedestal attached to a stile of a shoji, and the handle shaft is provided with an unlock position between the handle pedestal and the handle in conjunction with the rotation of the handle. A locking arm is fitted that rotates between the locking position and the locking position to engage and disengage the catch, and the handle shaft is used to airtightly pull the shoji and window frame at a pulling start angle that is approximately halfway through the full rotation angle of the handle shaft. In the tightening handle device connected to the pulling mechanism in the joining frame, the locking arm is fitted onto the handle shaft so as to be movable in the axial direction, and the opposing surfaces of the handle pedestal and the base of the locking arm and first, second, third, and fourth cylindrical end cams each comprising a cam upper surface, a cam lower surface, and a cam slope connecting these cam upper surfaces and the cam lower surface, on opposing surfaces of the locking arm and the base of the handle. The height difference between the upper surface of these cams and the lower surface of the cams is set to be the same, and the shape of these cylindrical end surface cams is such that the handle is at an angular position smaller than the pulling start angle from the unlocked position a1, Draw possible position a where the locking arm begins to engage with the catch
2, the upper surfaces of the first and second cylindrical end cams slide against each other to prevent the locking arm from moving toward the pedestal, and the third and fourth cylindrical end cams The cam slopes engage each other and rotate the handle and locking arm together,
While the handle rotates from the drawable position a2 to the locking arm axial movement completion position a5, the cam slope of the second cylindrical end cam faces the cam slope of the first cylindrical end cam and locks. While allowing the arm to move toward the pedestal, the cam slope of the fourth cylindrical end cam moves relative to the cam slope of the third cylindrical end cam to move the locking arm toward the pedestal, and the handle moves in the axial direction. A tightening handle device characterized in that the cam upper surfaces of the third and fourth cylindrical end cams are formed in sliding contact with each other during rotation from the movement completion position a5 to the locking position a6.