JP4152550B2 - Window guard arm device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a guard arm device (hereinafter simply referred to as a guard arm device) of a window such as a normal window supported by a hinge, a vertical sliding window, or a rake window, and in particular, the guard arm can be fixed when not in operation. In addition, the present invention relates to a novel guard arm device that is reliable in operation.
[0002]
[Prior art]
The inventors previously proposed a novel window guard arm device (hereinafter simply referred to as a guard arm device) in Japanese Patent Application No. 11-358058.
[0003]
The guard arm device includes a box-shaped machine frame mounted on one of the inner surface of the window frame and the free edge of the shoji facing the free edge of the shoji when the window is closed, and a receiving member mounted on the other. The support arm that is installed on the back side of the base end of the elongated plate-shaped guard arm has a pivot arm that pivots and tilts in the support shaft hole that opens in the bottom plate of the machine frame. The guard arm is provided so that the free end of the guard arm can move in the direction in which the shoji is located, and on the surface side of the free end of the guard arm, there is an engaging pin that protrudes toward the receiving member side, leaving a flange around the periphery. On the other hand, the receiving member has a guide hole in which a receiving hole allowing the engagement pin to enter and exit and a long hole extending in the vertical direction and slidably engaged with the engagement pin are provided. And a guard arm between the receiving member and the receiving member. An eaves member that covers the open end edge of the long hole on the side that does not interfere with the guard arm is integrally joined while maintaining a gap that can receive the flange portion of the free end of the shaft, A locking cam is integrally coupled to the inner end of the frame, and the guard arm is joined to the outer surface of the bottom plate of the machine frame by the elasticity of the compression coil spring fitted to the support shaft between the locking cam and the bottom plate of the machine frame. Further, a slider cam having an inclined surface that is guided between the base end of the guard arm and the outer surface of the machine frame is provided on the outer surface of the bottom plate of the machine frame so as to be movable in the vertical direction. In addition, a switching lever is provided in which the central portion is rotatably supported on the bottom plate of the machine frame, and the inner end actuating part is inserted into the machine frame through the side surface of the machine frame, and the inner end of the actuating part is provided. The drive pin installed in the machine is inserted through the opening in the bottom plate of the machine frame and linked to the slider cam. At the same time, this switching lever is rotated to the guard arm device non-operating side, and the inclined surface of the slider cam is inserted between the base end of the guard arm and the outer surface of the bottom plate of the machine frame to receive the free end of the guard arm. When separated from the member, the operating portion of the switching lever interferes with the movement locus of the locking cam.
[0004]
[Problems to be solved by the invention]
In general, since the width of the shoji is small in the guard arm device for a window, the relative angle between the receiving member and the guard arm in the horizontal plane is likely to be larger than that of the door guard arm device.
[0005]
Therefore, the guard arm device according to the above-mentioned Japanese Patent Application No. 11-358058 has room for improvement, such as the heel portion at the tip of the guard arm being easily crushed between the receiving member and the eaves member.
[0006]
The present invention eliminates the disadvantages of the conventional guard arm device described above, operates reliably even when the relative angle between the receiving member and the guard arm is increased, and is a window that can fix the guard arm when it is not operating. An object is to provide a guard arm device.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a box-shaped machine frame mounted on one of the inner surface of the window frame and the free edge of the shoji that faces the free edge of the shoji when the window is closed, and the other. A support shaft that is provided on the back side of the base end of the elongated plate-like guard arm and pivotally and pivotally mounted on the support shaft hole that is opened in the bottom plate of the machine frame. Thus, the guard arm is provided so as to be rotatable and the free end of the guard arm can be moved in the direction of finding the shoji. A projecting engagement pin is planted, and an engagement piece projecting in the machine frame direction is integrally projectingly provided on the base end side edge of the guard arm. A hole that allows entry and exit and a long hole that extends in the vertical direction and slidably engages with the engagement pin are connected. Thereby forming a the guide hole, it received so as to polymerize member, and receiving and maintaining a gap adapted to receive a flange portion of the free end of the guard arm between the members, when the guard arm device actuation, engaging The eaves member that covers the opening edge of the elongated hole on the side that does not slide on the pin is joined together, and the receiving member is inclined in the direction in which the eaves member is close to the machine frame, while it is formed at the inner end of the support shaft. The guard arm is urged in the direction close to the outer surface of the bottom plate of the machine frame by the elasticity of the compression coil spring fitted to the support shaft between the flange and the bottom plate of the machine frame, and further, the outer surface of the bottom plate of the machine frame Is provided with an inclined surface that is guided so as to be movable in the vertical direction between the machine frame and the base end of the guard arm, and has an inclined surface that is inclined in the vertical direction. The engagement pin engages with the long hole, and the guard arm tilts. when the guard arm apparatus operated, the guard arm The slider cam formed with arcuate relief groove to avoid interference with the engaging piece provided, which disengage the guard arm and the receiving member, the guard arm device inoperative the free end of the guard arm is separated from shoji At this time, the opening of the relief groove is moved to a position where it does not align with the engagement piece, thereby restraining the guard arm.
[0008]
【Example】
Embodiments of the present invention will be described below with reference to the drawings.
In FIG. 1, reference numeral 1 denotes a sliding sliding door window, reference numeral 2 denotes a window frame, and the free edge of the sliding door 1 moves in the direction of arrow A when the sliding door is opened.
[0009]
When the window is closed, an elongated plate-like guard arm 4 (see FIGS. 2 and 3) is pivotally attached to the inner surface of the window frame 2 facing the free side edge of the shoji 1 through the machine frame 3. .
[0010]
As shown in FIGS. 2 and 3, the machine frame 3 in the illustrated embodiment is a vertically long and shallow box-like body whose back (left side in FIG. 3) is open, and is integrally formed at the upper and lower opening edges. The attachment pieces that are not numbered are fixed with screws so that the opening on the back is joined to the inner surface of the window frame 2.
[0011]
On the other hand, as shown in FIG. 3, a support shaft 5 in a direction orthogonal to the inner surface is fixed to the rear surface of the base end (upper end) of the guard arm 4, that is, the inner surface side of the window frame 2 by caulking, for example. The support shaft 5 is inserted through a clearance hole 7 (see FIGS. 2 and 3) of a slider cam 6 to be described later, and is further opened to the bottom surface (the right side surface in FIG. 3) of the machine frame 3 without numbering. Is loosely fitted into the internal space of the machine casing 3.
[0012]
Further, an arm spring 9 as a compression coil spring is wound around the support shaft 5 between the flange 8 (see FIG. 3) formed at the inner end of the support shaft 5 and the bottom surface of the machine casing 3. .
[0013]
With the above-described configuration, the guard arm 4 is supported so as to be rotatable around the support shaft 5 and the support shaft 5 is loosely fitted with the support shaft hole on the bottom surface of the machine frame. The lower end in FIG. 3 can move in the direction in which the shoji 1 is found (the left-right direction in FIG. 3).
[0014]
On the other hand, on the surface of the guard arm 4 facing the shoji 1 at the free end, as shown in FIG. 2 and FIG.
[0015]
Corresponding to the engagement pin 12, as shown in FIG. 1, a vertically long plate-shaped receiving member 13 is fixed to the free end edge of the shoji 1 by screwing the upper and lower ends.
[0016]
As shown in FIG. 4, the receiving member 13 has a lower hole 14 that allows the engagement pin 12 to enter and exit, and a length that extends in the vertical direction and engages the engagement pin 12 slidably. A guide hole 16 that is continuous with the hole 15 is opened.
[0017]
In the illustrated embodiment, the elongated hole 15 is slightly inclined with respect to the vertical direction, but this inclination is not an essential configuration of the present invention.
[0018]
Further, as shown in FIGS. 1 and 6, the eaves member 17 is integrated with the receiving member 13 in such a manner that one side edge of the receiving member 13 is extended laterally and folded back to the center of the receiving member 13. Is bound to.
[0019]
The eaves member 17 maintains a gap that can receive the guard arm flange 11 between the receiving member 13 and the side that does not interfere with the guard arm 4 , in other words, the engagement pin 12 when the guard arm device is activated. The opening edge of the long hole on the side not in sliding contact with (the opening edge on the external space side in FIG. 1) is covered.
[0020]
Furthermore, as shown in FIGS. 1 and 6, the receiving member 13 is inclined so that the eaves member 17 is close to the machine casing 3.
[0021]
On the other hand, as shown in FIGS. 2 and 3, the slider cam 6 is supported and guided so as to be movable in the vertical direction between the surface of the machine frame 3, that is, the outer surface of the bottom surface of the machine frame 3 and the guard arm 4. Yes.
[0022]
As shown in FIGS. 3, 7 and 8, the slider cam 6 is a flat block made of a synthetic resin having a rectangular shape as a whole. In the left half of FIG. Slopes 18 and 18 are formed symmetrically so as to become thinner toward the bottom.
[0023]
The reason why the slope 18 is provided up and down is that the slider cam 6 is turned upside down according to the right and left opening of the shoji, so only the lower slope 18 is used in the illustrated embodiment.
[0024]
The slider cam 6 has an engagement between the support shaft 5 of the guard arm 4 and the longitudinal escape hole 7, and a guide pin 18 with a flange that is caulked to the surface of the machine frame 3 and a vertically long opening at the top of the slider cam 6. And a pair of guide shoes 19, 19 projecting from the right side surface in FIG. 7 are respectively formed in guide holes 21, 21 (see FIG. 7) opened on the bottom surface of the machine frame 3. By being slidably engaged, it is supported so as to be movable in the vertical direction.
[0025]
Note that the opening edge of one (left side) of the escape hole 7 of the slider cam 6 is stealed with the bow-shaped spring portion 22 left, and when the slider cam 6 moves up and down as will be described later. At the end of ascent and descent, it gives a click feeling to its operation.
[0026]
Further, as shown in FIGS. 2 and 7, below the slider cam 6, when the support shaft 5 of the guard arm is in an operating position described later, in other words, when the support shaft 5 is above the escape hole 7, An arc-shaped escape groove 23 centering on the center point O of the support shaft 5 is formed.
[0027]
Incidentally, although the escape groove 23 is also formed above the slider cam 6 in correspondence with the left and right opening of the shoji, the upper escape groove is centered on the support shaft center point below the slider cam 6. Needless to say.
[0028]
Corresponding to the escape groove 23, as shown in FIGS. 1 to 3, an engagement piece projecting in the direction of the machine frame 3 is integrally projected at the base end side edge of the guard arm 4.
[0029]
The engagement piece 24 is allowed to move along the escape groove 23 when the guard arm device shown in FIG. 2 and FIG. 3 is operated to allow the guard arm 4 to rotate. When the arm device becomes inoperative, the engagement piece 24 is not aligned with the opening of the escape groove 23, and as a result, the guard arm 4 is restrained from rotating by the side edge of the slider cam 6.
[0030]
Furthermore, in order to switch the slider cam 6 in the vertical direction, as shown in FIGS. 1, 2 and 4, a knob 26 is integrally coupled via a slide plate 25 having an L-shaped cross section.
[0031]
The bent portion of the slide plate 25 is engaged with the bottom surface of the slider cam 6 so as to hold the slider cam 6 as shown in FIG. 1, while the slider cam 6 has a bent portion as shown in FIGS. The slider cam 6 and the slide plate 25 are coupled to each other by engaging a pair of engaging claws 27 and 27 projecting from the left side edge with an engagement opening (not shown) formed in the slide plate 25. .
[0032]
In this case, it goes without saying that a long hole that loosely fits with the support shaft 5 of the guard arm is opened in the bent portion of the slide plate 25.
[0033]
The guard arm device according to one embodiment of the present invention constructed as described above should have a slider cam 6 integral with the knob 26 as shown in FIG. 9 when the knob 26 is raised as shown by the chain line in FIG. It is lowered to the position indicated by 9.
[0034]
At this time, the guard arm 4 is joined to the slope 18 below the slider cam 6 by the elastic force of the arm spring 9, and as a result, the engaging pin 12 becomes the receiving member 13 on the side of the shoji as shown in FIGS. The guard arm device is in a non-operating state with a standby position spaced from the stand.
[0035]
At this time, since the engagement piece 24 of the guard arm is restrained by the side edge of the slider cam as described above, the guard arm 4 is fixed to the machine frame 3 and can be prevented from being pulled out and mischievous.
[0036]
To operate this guard arm device, the knob 26 is pushed down as shown by the solid line in FIG. 4, and the slider cam 6 is placed at the lowered position shown in FIG.
[0037]
Then, since the guard arm 4 rides on the cross-sectional angle between the upper and lower slopes 18 and 18 of the slider cam, the guard arm 4 is slightly rotated counterclockwise in FIG. Move to the right.
[0038]
As a result, the engagement pin 12 of the guard arm is engaged in the engagement hole 14 of the receiving member 13 from the other side in FIG.
[0039]
At this time, since the collar portion 11 passes under the eaves member 17, there is no obstacle when the engagement pin 12 is engaged with the punch hole 14.
[0040]
When the shoji 1 is opened in this state, in other words, when the free end of the shoji 1 is raised in FIG. 1, the receiving member 13 moves to the right in FIG. 10, and the engagement pin 12 of the guard arm is engaged with the elongated hole. At the same time, the flange 11 of the guard arm enters the gap between the receiving member 13 and the eaves member 17.
[0041]
When the shoji is further opened, the engagement pin 12 of the guard arm slides through the long hole 15 and pulls the free end of the guard arm 4, so that the shoji 1 is connected to the window frame 2 via the guard arm 4. The opening of the shoji is regulated by opening the engaging pin 12 to the upper end of the guide hole 16.
[0042]
During the operation of the guard arm device described above, the movement to remove the engaging pin 12 from the guide hole 16 is prevented by the engagement between the eaves part 11 and the eaves member 17, while the eaves part 11 is removed from the eaves member 17. The movement to be removed from the gap between the receiving member 13 and the receiving member 13 is prevented by the engagement between the engaging pin 12 and the guide hole 16.
[0043]
Further, since the receiving member 13 is inclined in the direction in which the eaves member 17 is close to the machine casing 3, as shown in FIG. 11, the shoji 1 is opened and the guard arm 4 is interposed between the receiving member 13 and the eaves member 17. The free end of the is not drowned.
[0044]
When the shoji 1 is closed, the engaging pin 12 returns to the punch hole 14. At this time, when the knob 26 is raised, the free end of the guard arm 4 moves away from the shoji and the guard arm device returns to the standby state.
[0045]
【The invention's effect】
As is apparent from the above description, the present invention is such that the engagement pin of a normal short cylindrical body having no flange or ridge planted at the free end of the guard arm is engaged with the guide hole of the member, Since the movement of trying to pull out the guide hole from the guide hole is blocked by the eaves member, the movement of the free end of the guard arm when operating the guard arm device can be made smaller than the conventional one and limited The guard arm device can be incorporated in the space between the window frame and the shoji, and the structure of the guard arm device can be simplified.
[0046]
In addition, since the eaves member is attached to be inclined in the direction approaching the machine frame, even if the shoji is opened and the relative angle between the receiving member and the guard arm changes, there is no angling between them.
[0047]
Furthermore, for the same reason, it is not necessary to form an opening for avoiding interference with the engaging pin at the free edge of the shoji to which the receiving member is attached.
[0048]
In addition, since the guard arm is fixed to the machine frame by the engagement of the engagement piece and the slider cam when the guard arm device is not in operation, various effects such as preventing the guard arm from being pulled out and being mischievous can be obtained. Play.
[Brief description of the drawings]
FIG. 1 is a plan view of a guard arm device according to an embodiment of the present invention.
FIG. 2 is a front view thereof.
FIG. 3 is a longitudinal sectional view thereof.
FIG. 4 is a rear view showing a case where the guard arm device is in an operating state.
FIG. 5 is a rear view of the receiving member.
FIG. 6 is a plan view of a receiving member.
FIG. 7 is a front view of a slider cam.
FIG. 8 is a bottom view of the slider cam.
9 is a longitudinal sectional view of a guard arm device similar to FIG. 3, showing a case where the guard arm device is in an inoperative state. FIG.
FIG. 10 is a rear view of the receiving member similar to FIG. 5 and shows a mode of engagement of the guard arm with the engagement pin when the guard arm device is operated.
FIG. 11 is a diagrammatic plan view showing how the receiving member and the guard arm are engaged when the guard arm device is operated.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Shoji 2 Window frame 3 Machine frame 4 Guard arm 5 Support shaft 6 Slider cam 7 Escape hole 8 Flange 9 Arm spring 11 Eight part 12 Engagement pin 13 Receiving member 14 Extraction hole 15 Long hole 16 Guide hole 17 Elongation member 18 Slope 23 Escape Groove 24 engagement piece

Claims (1)

When the window is closed, it has a box-like machine frame attached to one of the inner surface of the window frame facing the free edge of the shoji and the free edge of the shoji, and a receiving member attached to the other, and is in the form of an elongated plate By pivotally attaching the support shaft planted on the back side of the base end of the guard arm to the support shaft hole opened in the bottom plate of the machine frame so as to be able to rotate and tilt, the guard arm can be rotated freely and the guard arm Provided so that the free end can move in the direction in which the shoji can be found, and on the surface side of the free end of the guard arm, an engaging pin protruding toward the receiving member side is planted, leaving a flange around the periphery, An engaging piece that protrudes in the frame direction is integrally provided on the edge of the guard arm on the base end side. On the other hand, the receiving member has a punch hole that allows the engaging pin to enter and exit, and extends vertically. And a guide member in which a long hole that is slidably engaged with the engaging pin is formed, and the receiving member So as to the polymerization, and subjected to keep a gap adapted to receive a flange portion of the free end of the guard arm between the members, when the guard arm device actuation, the open end of the engaging pin and the sliding contact is not the side of the long hole The eaves member covering the edge is joined together, and the receiving member is inclined in the direction approaching the machine frame, while the flange formed on the inner end of the support shaft and the bottom plate of the machine frame By the elasticity of the compression coil spring fitted to the support shaft, the guard arm is urged in the direction close to the outer surface of the bottom plate of the machine frame. is movably guided in the vertical direction between the, an inclined surface inclined in the vertical direction, the engaging pin engages the elongated hole, when the guard arm device actuation guard arm is tilted, engages the guard arm Arc-shaped to avoid interference with the piece The slider cam forming the lower groove is provided, which disengage the guard arm and the receiving member, when the guard arm device inoperative the free end of the guard arm is separated from shoji, inconsistent with the engagement piece of the opening of the relief groove A guard arm device for a window, wherein the guard arm is restrained by being moved to a position.

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