JP4057689B2 - Guard arm device for windows - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a guard arm device for a window that is used for the purpose of partially opening a shoji of the window. Examples of the window to which the present invention is applied include a rotary type whose shoji has a hinge and a pivot, that is, a half-open window, a double-open window, a vertical sliding window, a side sliding window, or a drake window.
[0002]
[Prior art]
The guard arm device is generally used as a door for an entrance / exit for confirmation of a visitor or delivery of a postal item, and is used for a window to be attached to a rotary window for ventilation. There is no suitable guard arm device, and the fact is that it has hardly been put into practical use.
[0003]
[Problems to be solved by the invention]
The guard arm device for a window according to the present invention is formed so that the main body side of the device is flattened as a whole so that it can be equipped even if the shoji or shoji frame has a relatively narrow edge, and the shoji for ventilation Even if the shoji may be winded in the open state, the open angle position can be reliably held, while the shoji can be clicked at the open angle position when closing the shoji from the open hold state. The present invention has been proposed for the purpose of enabling the shoji to be closed with a small force by releasing the proper restraint state in advance with the operating means.
[0004]
[Means for Solving the Problems]
In order to achieve the above object, a guard arm device for a window according to the present invention is a hollow arm that is attached to a rotary type shoji or shoji frame with a guard arm having an engaging protrusion at the tip and a support shaft at the base end. Attaching the guard arm to the frame so that it can move forward and backward and turn on the support shaft, and urge the guard arm in a backward direction; the engagement protrusion of the guard arm is attached to a shoji frame or a rotary shoji It is to be selectively engaged when the guard arm is actuated in an engagement slot consisting of a strike hole to be inserted and a guide slot that is continuous therewith; the guard arm is moved from the stowed position to the operating position in the frame. In order to project, an action member having a projecting piece is pivotally supported; the action member is linked to an operation means provided on the interior side of the shoji or shoji frame to rotate the actuating member. A cam piece having a trough that clicks with the driven member and a relief portion that is continuous with the trough in the axial direction is provided at the rear of the support shaft of the guard arm so as to be able to rotate together with the support shaft. The driven member is urged toward the cam piece between the cam piece and the action member, can move in a direction substantially perpendicular to the rotation center line of the cam piece, and can be tilted with respect to the front-rear direction by the rotation of the action member. way that the shaft and its axis is provided with a pivot means comprising a pair of long holes which are fitted between the frame to; and, the driven member, shoji is maximally opened, Kakarigo突guard arm When the part reaches the end of the guide slot of the strike and cannot move any further, one end is automatically and click-fitted into the valley of the cam piece that rotates as the guard arm swings Open the shoji In addition, the fitting between one end of the driven member and the valley of the cam piece can be released by moving one end of the driven member to the relief portion of the cam piece by rotating the action member. It is characterized by that.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described based on embodiments shown in the drawings.
1, 2, and 5, reference numeral 10 denotes a rotary type shoji, 20 denotes a window glass of the shoji 10, 30 denotes a shoji frame (window), and 40 denotes a sealing material that also serves as a buffer attached to the shoji frame 30. Each is shown.
[0006]
An elongated hollow frame 1 having a box shape that is attached to the open end surface of the rotary type shoji 10, that is, the end face of the open side collar or the shoji frame with a screw 91 or the like at the flange portion, has an opening 12 in the front plate 11, When the guard arm device is not operated, the guard arm 3 is accommodated through the opening 12.
[0007]
Reference numeral 13 denotes a partition plate provided to be inclined in the frame 1 and divides the front guard arm storage portion and the rear space portion. In the central portion of the partition plate 13, an escape hole 14 for mounting a later-described action member 4 is opened.
[0008]
The guard arm 3 has a long and narrow plate shape, and has a coupling protrusion 31 fixed at the front end thereof and a support shaft 32 fixed at the rear end thereof. The guard arm 3 is attached to the frame 1 so as to be able to advance and retreat on the support shaft 32 and to be rotatable.
[0009]
In FIG. 1, reference numeral 15 denotes a support plate having a U-shaped cross-section for supporting the support shaft 32 of the guard arm 3 so as to be able to advance and retreat, and is fixed to the frame 1.
[0010]
The guard arm 3 in the illustrated example is allowed to tilt with respect to the front-rear direction when the guard arm 3 is moved forward and backward together with the support shaft 32, but both the guard arm (3) and the support shaft (32) are allowed to move. It is also possible to advance and retract straight in the horizontal direction without tilting.
[0011]
Further, the guard arm 3 is urged in a backward direction by an urging means 33 such as a compression coil spring wound around a support shaft 32, that is, rightward in FIG. In the longitudinal direction, 33 is provided between the support plate 15 and a flange 34 fixed to the central portion of the support shaft 32.
[0012]
The strike 2 that engages and guides the engagement protrusion 31 of the guard arm 3 when the guard arm is operated is fixed to a predetermined position of the shoji frame 30 or the rotary shoji at, for example, a flange portion.
[0013]
As clearly shown in FIGS. 7 and 10, the front surface of the strike 2 formed in a shallow box shape or the like has a flange-like bulging portion 31 a at the tip of the engagement protrusion 31 in the guard arm 3. An engagement long hole 21 including a fitting hole 21a having a diameter larger than the diameter and a narrow guide long hole 21b connected to the fitting hole 21a is provided.
[0014]
1, 2, and 5 is a member for projecting the guard arm 3 from the storage position in the frame 1 to the operating position. For example, one plate member is flat. It is formed by bending so as to form a U-shape, and is pivotally supported by a pivot 45 in a space portion behind the frame 1.
[0015]
Working member 4 in the illustrated example, planar Whereas U-shaped body, projecting pieces 41 projecting from the front, pushing pieces 42, 43 and one of the side plates form a pair of projecting upward in one of the side plates It consists of the linkage piece 44 which protruded toward back from.
[0016]
In order to rotate the action member 4 within an angle range of θ (see FIG. 1), operating means 5 provided on the indoor side of the shoji 10 or the shoji frame is linked.
[0017]
As shown in FIGS. 5 and 6, the operation means 5 of the illustrated example can slide up and down within a range of a distance l by means of a knob 53 within the substrate 51, which is fixed to the shoji 10 with screws 93 or the like. In order to engage the movable operation plate 52 and the linkage tail piece 44 of the working member 4 projecting from the rear opening 16 of the frame 1 in a movable relationship, a pair of projections integrally projecting on the back surface of the operation plate 52 are provided. It consists of leg pieces 54 and 54 which comprise.
[0018]
The operation means 5 is of a type in which the operation plate 52 is linearly slid. However, as another operation means, a rotation type such as a thumb lock of a general lock may be used, although not shown. it can. In this case, it goes without saying that the inner end side of the thumb turn is linked to the action member 4 and the knob portion on the outer end side is exposed to the indoor side.
[0019]
As shown in FIGS. 1, 2, 8, and 9, a connecting shaft portion 32 a having an oblong or other non-circular cross section is formed at the rear portion of the support shaft 32 of the guard arm 3 according to the present invention. The non-circular shaft portion 32a is inserted into an engagement long hole 61 provided along the diameter at the front portion of the cam piece 6 in the axial direction.
[0020]
The cam piece 6 is rotatably supported by a shaft portion 17 that projects integrally with the rear plate (back plate) of the frame 1 at the rear portion in the axial direction, and the U-shaped support plate described above. Since it is held down by 15 legs, it can be rotated at the same position.
[0021]
However, since the cam piece 6 is connected to the non-circular shaft portion 32a of the support shaft 32 with the engagement long hole 61 as described above, the rotation of the support shaft 32 is transmitted to the cam piece 6 as it is. Tilt of the support shaft 32 when the guard arm 3 advances and retreats is allowed in the cam 6, and the rotation of the support shaft 32 can be transmitted to the cam piece 6 even in a tilted state.
[0022]
Although not shown in the drawings, when the guard arm (3) and the support shaft (32) are moved forward and backward, the support arm (32) can be moved straight without being tilted. The rear part can be fixed to the cam piece (6).
[0023]
The cam piece 6 has a disc shape as a whole, and has, for example, a V-shaped trough portion 62 having a click action between the cam surface and a driven member 7 described later. The part 62 has a relief part 63 that is continuous in the axial direction. In other words, the escape portion 63 forms a step portion in the vicinity of the valley portion 62 in the circumferential direction of the cam piece 6.
[0024]
In the illustrated cam piece 6, the trough 62 is formed forward and the escape portion 63 is formed rearward in the axial direction. However, if the tilting direction of the driven member 7 described later is changed, the trough 62 and the escape portion 63 are formed. The positions before and after can be reversed.
[0025]
The driven member 7 having an elongated plate shape has side plates 71 and 71 bent, for example, on both sides in the length direction, and further, spring receivers 72 (see FIG. 1) cut and raised from the main body portion between the side plates 71 and 71. See).
[0026]
A compression coil spring 73 is elastically provided between the spring receiver 72 of the driven member 7 and the spring receiver 18 cut and raised from the rear plate (back plate) of the frame 1. The driven member 7 that is movably mounted between the cam members 6 is biased so that one end thereof is pressed against the cam surface of the cam piece 6.
[0027]
Needless to say, the biasing means 73 of the driven member 7 is not limited to the compression coil spring, and other types of springs such as a torsion spring and a tension coil spring may be used.
[0028]
Further, the driven member 7 can move in a direction substantially perpendicular to the rotation center line of the cam piece 6, and any one of the push pieces 42 and 43 is engaged with the rotation of the action member 4. In order to be able to tilt with respect to the front-rear direction (left-right direction in FIG. 1), a pivoting means 8 comprising a shaft 81 and a long hole 82 into which the shaft 81 is movably fitted is provided between the frame 1 and the frame 1. .
[0029]
When the other end (lower end) of the driven member 7 is pushed forward or rearward by the pushing piece 42 or 43 of the action member 4, the driven member 7 is the inner wall of the frame 1 including the pivoting means 8 and the partition plate 13. Etc., so that it is guided in the required direction.
[0030]
The pivoting means 8 in the illustrated example is formed in pin-like shafts 81 and 81 fixed to both side plates of the frame 1 and both side plates 71 and 71 of the driven member 7 for fitting these shafts 81 and 81 separately. However, even if each shaft (81) is provided on the driven member 7 side and each long hole (82) is provided on the frame 1 side, a pivot that exhibits the same action is provided. A landing means is configured.
[0031]
Next, the operation of the window guard arm device of the illustrated example as a whole will be described.
[0032]
FIG. 1 and FIG. 5 show a guard arm non-actuating device which is a normal state of this device, and the guard arm 3 is housed in a storage position in the frame 1. At that time, one end of the driven member 7 is pressed against a cylindrical surface other than the valley portion 62 of the cam surface, and the driven member 7 occupies a lower position [see FIGS. 1 and 9A].
[0033]
Here, when the knob 53 of the operation means 5 on the indoor side is displaced downward by hand, the action member 4 linked so as to be sandwiched between the pair of leg pieces 54 and 54 rotates clockwise in FIG. Therefore, the projecting piece 41 of the action member 4 protrudes forward and advances the guard arm 3 toward the operating position against the biasing means 33.
[0034]
In the operating state of the guard arm 3, as shown in FIGS. 2 and 9B, the engaging protrusion 31 is fitted into the fitting hole 21a of the strike 2, and at that time, the driven member 7 is at the other end. Although the (lower end) is pushed backward by the pushing piece 43 in front of the action member 4 and tilts forward, the abutting position of the cam piece 6 at one end of the driven member 7 moves forward, but the one end continues to be a cam. Pressed against a cylindrical surface other than the valley of the surface.
[0035]
Therefore, when the shoji 10 is opened, the guard arm 3 swings about the support shaft 32 by the engagement projection 31 being guided by the guide long hole 21b of the strike 2 as shown by a chain line in FIG. On the other hand, the opening angle of the shoji 10 is limited according to the length of the guard arm 3.
[0036]
During this time, the rear cam piece 6 is also rotated by the rotation of the support shaft 32, and as shown in FIGS. 3 and 9C, the biasing means 73 is applied to the trough 62 of the cam piece 6. One end of the driven member 7 biased upward is fitted.
[0037]
Here, a click action is exhibited, and the fitting between the valley 62 of the cam piece 6 and one end of the driven member 7 causes the pivot 32 to rotate, that is, the guard arm 3 swings in the return direction with a large drag. Since the movement is suppressed, the opening angle position for the ventilation of the shoji 10 is maintained in a stable state even if the shoji 10 is raised by a considerably strong wind.
[0038]
By the way, in the apparatus according to the present invention, when the shoji 10 is pulled from the half-opened state of the shoji 10 shown in FIGS. Since the fitting between the valley 62 of the piece 6 and the driven member 7 acts as a resistance against the closing of the shoji, a large force is required to close the shoji 10.
[0039]
Therefore, in this apparatus, as shown in FIGS. 4 and 9D, the knob 53 of the operation means 5 is returned to the initial upper position by hand in advance. Then, the action member 4 rotates counterclockwise, the other end (lower end) of the driven member 7 is pushed forward by the pushing piece 42 behind the action member 4, and the driven member 7 tilts backward. .
[0040]
Then, with the subsequent inclination, one end (upper end) of the driven member 7 slides in the axial direction of the cam 62 from the state of fitting with the valley portion 62 of the cam piece 6 and comes into contact with the rear escape portion 63. It will be. That is, the fitting between the end of the driven member 7 and the valley 62 of the cam piece 6 is released.
[0041]
Here, if the shoji 10 is closed by pulling the handle of the shoji 10, the end of the driven member 7 is in contact with the cam piece 6 at the escape portion 63 that forms a smooth aspect. Out.
[0042]
If the shoji 10 is completely closed, the projecting piece 41 of the action member 4 has already been displaced to the rear position, so that the guard arm 3 is retracted together with the support shaft 32 by the biasing means 33, while the guard arm 3 The engagement protrusion 31 comes out in the fitting hole 21a of the strike 2, and the guard arm 3 automatically returns to the normal storage position [see FIGS. 1 and 9A].
[0043]
【The invention's effect】
According to the above-described guard arm device for a window of the present invention, since the hollow frame constituting the main body side of the device can be formed flat as a whole, the shoji or shoji frame has a relatively thin fold. Even if it is, it can be installed in the bag.
[0044]
In addition, even when the shoji is exposed to strong wind in the open state of the shoji for ventilation, the opening angle of the shoji can be maintained in an extremely stable state.
[0045]
Furthermore, the strong click-like restraint state of the shoji at the opening angle position can be released in advance by the operating means, and various effects can be achieved such that the shoji can be easily closed with a small force.
[Brief description of the drawings]
FIG. 1 is a longitudinal side view showing an embodiment of a guard arm device for a window according to the present invention with a shoji placed in a closed position in a non-operating state of the guard arm.
2 is a longitudinal side view showing the apparatus of FIG. 1 with the shoji placed in a closed position in a guard arm operating state. FIG.
FIG. 3 is a longitudinal side view of the apparatus shown in FIG. 1 with the shoji open when the guard arm is in operation.
4 is a longitudinal partial side view showing the initial stage of the process of closing the shoji after operating the operating means so that the guard arm is inactivated in the apparatus of FIG. 1;
5 is a plan view thereof in the state of FIG. 1. FIG.
6A and 6B are diagrams showing the operating means removed from the apparatus shown in FIG. 1, wherein FIG. 6A is a front view, and FIG. 6B is a side view.
7A and 7B are diagrams showing a strike removed from the apparatus shown in FIG. 1, wherein FIG. 7A is a front view, and FIG. 7B is a side view.
8 is a perspective view of the cam piece removed from the apparatus of FIG. 1. FIG.
FIGS. 9A and 9B are explanatory views showing the relationship between the cam piece and the driven member as viewed from the back, and FIGS. 9A to 9D are respectively shown corresponding to FIGS. In addition, in (C) and (D) of this figure, in order to make the drawing easy to understand, the surface where one end of the driven member is actually in contact is represented by a solid line, and the surface on the non-contact side is represented by a chain line. did.
FIG. 10 is an explanatory view showing the engagement state of the guard arm and the strike in the operating state of the guard arm with the shoji open. However, in this figure, the frame and the guard arm are shown as seen from the front, and the strike is shown as seen from the back.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Shoji 30 Shoji frame 1 Frame 2 Strike 21 Engagement long hole 21a Fitting hole 21b Guide elongate hole 3 Guard arm 31 Engagement protrusion 32 Support shaft 4 Action member 41 Projection piece 5 Operation means 6 Cam piece 62 Valley part 63 Escape part 7 driven member 8 pivoting means 81 shaft 82 long hole

Claims (1)

A guard arm having an engagement protrusion at the distal end and a support shaft at the base end is attached to a rotary frame or a hollow frame attached to the frame so that the support shaft can be advanced and retracted and rotated. The guard arm is urged in a retreating direction; the engagement protrusion of the guard arm is an engagement slot comprising a strike fitting hole attached to a shoji frame or a rotary shoji and a guide slot that is continuous therewith A guard arm that is selectively engaged when the guard arm is actuated; in order to project the guard arm from the stowed position toward the actuated position in the frame, an action member having a projecting piece is pivotally supported. The action member is linked to operating means provided on the indoor side of the shoji or shoji frame to rotate it; the guard arm support shaft is clicked between the driven member and the driven member. A cam piece having a trough portion having a relief and a relief portion continuous in the axial direction at the trough portion is provided so as to be able to rotate together with the support shaft; the driven member is directed to the cam piece between the cam piece and the action member. The shaft and the shaft are fitted between the frame so that the shaft can move in a direction substantially perpendicular to the rotation center line of the cam piece and can be tilted with respect to the front-rear direction by rotating the action member. Provided with pivot means comprising a set of holes; and the follower member is fully open when the shoji is opened and the engagement projection of the guard arm is brought into contact with the end of the guide slot of the strike. When it is no longer possible, one end of the cam piece that rotates as the guard arm swings is automatically and click-fitted so that the shoji can be held in an open state. The valley of the cam piece Window guard arm device is fit fits, characterized in that to be able to release by moving one end of the driven member to the relief portion of the cam piece by rotation of the working member.

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