JP4152471B2 - Guard arm device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a guard arm device in which a window shoji or door is half-opened for ventilation or delivery of mail, and particularly when the door or shoji is closed, the guard arm can be reliably returned to the storage case. The present invention relates to a guard arm device that can be used.
[0002]
[Prior art]
Various types of guard arm devices have been proposed and put to practical use, but those shown in FIGS. 1 to 4 are easy to use because the guard arm automatically returns to the storage case when the guard arm device is not in operation. .
[0003]
The guard arm device in the illustrated embodiment is applied to a rotating window. First, the structure will be briefly described.
[0004]
As shown in FIGS. 1 and 2, the guard arm device is mounted between the free edge of the shoji 2 of the rotary window having the window glass 1 and the shoji frame 3 and is provided on the shoji 2 side. It has a storage case 4 and a strike 5 provided on the side of the shoji frame 3.
[0005]
An elongated hollow storage case 4 having a box shape that is attached to the free side edge of the rotary type shoji 2 or the shoji frame with a screw 6 or the like at the flange portion has an opening 8 in the front plate 7, so In operation, the guard arm 9 is accommodated through the opening 8.
[0006]
Reference numeral 11 denotes a partition plate provided to be inclined in the storage case 4 and partitions the front guard arm storage portion and the rear space portion. In the central portion of the partition plate 11, an escape hole 13 for mounting a later-described action member 12 is provided.
[0007]
The guard arm 9 has an elongated plate shape, and has a flanged engaging projection 14 fixed forward at the tip, and a support shaft 15 fixed rearward at the base end. The guard arm 9 is attached to the storage case 4 so as to be able to advance and retreat, tilt and rotate on the support shaft 15.
[0008]
In FIG. 1, reference numeral 16 denotes a support plate for supporting the support shaft 15 of the guard arm 9 so as to be able to advance and retract, tilt and rotate, and is fixed to the storage case 4.
[0009]
Further, the guard arm 9 is urged in a retreating direction by an urging means 17 such as a compression coil spring wound around the support shaft 15, and the compression coil spring 17 in the illustrated example is in the length direction. Is fixedly provided between the support plate 16 and the rear portion of the support shaft 15 and has no relationship with the present invention, so that the description of the function is omitted, and is held and placed between the cam piece 18.
[0010]
The strike 5 for engaging and guiding the engagement protrusion 14 of the guard arm 9 when the guard arm is operated is fixed to a predetermined position of the shoji frame 3 with a screw 6 or the like at the flange portion.
[0011]
As shown in FIG. 3 and FIG. 5, the front surface of the strike 5 formed in, for example, a shallow box shape, as shown in the drawing, has a flange-like bulged portion 14 a at the tip of the engaging protrusion 14 in the guard arm 9. There is provided an engagement long hole 22 composed of a fitting hole 19 having a diameter larger than that of the diameter and a guide long hole 21 having a narrow width continuous therewith.
[0012]
In the guard arm device configured as described above, when the operation knob 23 on the indoor side is lowered with fingers, as shown in FIG. 4, the linkage of the action members held between the leg pieces 24 and 24 at the inner ends thereof is performed. The piece 25 is lowered, and the protruding piece 26 projects the tip of the guard arm 9 out of the storage case 4 against the biasing means 17.
[0013]
Then, as shown in FIG. 1, when the engaging protrusion 14 is fitted into the strike fitting hole 19 and the shoji 2 is opened there, the guard arm 9 is engaged as shown in FIG. While the joint protrusion 14 is guided by the guide long hole 21 of the strike 5 and rotates around the support shaft 15, the opening angle of the shoji 2 is limited according to the length of the guard arm 9.
[0014]
On the other hand, when the shoji is closed and the guard arm 9 and the strike 5 are aligned with each other in the expected direction of the shoji and the operation knob 23 (see FIG. 2) is pushed up, the guard arm 9 is automatically moved by the elastic force of the biasing means 17. Pull into the storage case 4.
[0015]
[Problems to be solved by the invention]
Incidentally, as shown in FIG. 5, the conventional guard arm device has no margin between the side edge of the guard arm 9 and the opening edge of the opening 8, so that the guard arm 9 is retracted into the storage case 4. When 9 is tilted, the inner surface of the guard arm 9 is caught by the opening edge of the opening 8, and a state in which the guard arm 9 is not pulled into the storage case 4 occurs.
[0016]
When the width of the opening 8 is increased in order to prevent this, the guard arm 9 is retracted into the storage case 4 while being tilted, so that the engaging projection 14 is the strike engagement long hole 22 in the next operation of the guard arm device. There is an inconvenience that it may not be possible to engage with.
[0017]
An object of the present invention is to provide a strike that can surely retract the guard arm into the storage case even if the guard arm is slightly inclined, thereby eliminating the above-described disadvantages.
[0018]
[Means for Solving the Problems]
To achieve the above object, the invention described in claim 1 is an elongated plate-like body having an engaging projection at the tip and a support shaft at the base, and is attached to a rotary type shoji or door. With respect to the hollow storage case, a guard arm that can be moved forward and backward and tilted through the opening of the front plate on the front side of the storage case and can be rotated and urged in a backward direction, and the inner space of the storage case are moved forward. A partition plate that is divided into a guard arm storage portion and a rear space portion, a fitting hole that is attached to the shoji frame or door frame and engages with the engagement protrusion when the guard arm device is operated, and is provided continuously therewith. Strike that has an engagement long hole made of a guide long hole, and is guided to be movable in a predetermined direction in the storage case and linked to the operating means on the indoor side, and stores the guard arm when the guard arm is activated From position to working position In those with a working member having a projecting piece which only protrude, to expand the width of the opening of the front plate guard arm and out, as well as to fit within the opening even slightly tilted guard arm, the partition plate from the front Bend into a trapezoidal cross section, and at least the top of the trapezoid where the guard arm tip is stored is set to the length of the guard arm, and the length of the base is set to the width of the front plate opening. It is characterized by that.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
The present invention will be described below with reference to FIGS.
The gist of the present invention will be described in one word. As shown in FIG. 6, the width of the opening 8 of the front plate 7 is widened so that the guard arm 9 can be accommodated in the opening 8 even if the guard arm 9 is slightly tilted. Bend in a trapezoidal shape with a trapezoidal cross section when viewed from the front, at least the top of the trapezoid where the tip of the guard arm is housed is about the width of the guard arm, and the bottom is the opening of the front plate Set to about the width of.
[0020]
Since the guard arm device according to the present invention configured as described above has a margin in the width of the opening 8, the tip end of the guard arm 9 is accommodated in the opening 8 even when the guard arm 9 is slightly swung when returning to the storage case 4.
[0021]
When the guard arm 9 is accommodated in the storage case 4, specifically, the space between the front plate 7 and the partition plate 11 by the elasticity of the urging means 17 (see FIG. 4), as shown in FIG. If the guard arm 9 is not tilted, it will fit straight into the storage case.
[0022]
On the other hand, when the guard arm 9 is tilted and the tip thereof swings to the left or right, the tip of the guard arm abuts against the slope of the sleeve plate 27 of the partition plate, and the guard arm is straightened by the wedge action. In this manner, the angle position is corrected, and it slides along the sleeve plate 27 to a reference angle position, that is, an angle position of 6 o'clock on the watch face as shown in FIG.
[0023]
If the partition plate has a U-shaped cross section as in the guard arm device for doors previously proposed by the applicant, for example, the guard arm device proposed by Japanese Utility Model No. 5-43908, both sleeves are What is necessary is just to expand and make a cross-sectional trapezoid.
[0024]
On the other hand, when the partition plate is slanted in order to save space like the guard arm device of the rotary type shoji in the illustrated embodiment, a little effort is required.
[0025]
That is, as shown in FIG. 7, the partition plate 7 in the illustrated embodiment has a box shape with one surface opened, one end (upper end) being shallow and the lower end being deep when viewed from the front, As shown in FIG. 8, the flange 28 is integrally formed, and the flange 28 is attached to the storage case so as to be sandwiched between the opening edge of the storage case 4 and the front plate 7.
[0026]
On the other hand, the width of the partition plate 8 is set such that the upper end is large and the lower end is small. That is, as shown in FIG. 9 in which the dimensional difference is exaggerated for the sake of clarity, a value obtained by adding the width x of the upper end of the partition plate 8 and the width of the sleeve plates 27 and 27 to the width of the lower end. Let x be the same dimension.
[0027]
Then, if the sleeve plates 27, 27 are cut along the dotted lines in FIG. 9 and the flanges 28, 28 are integrally formed at the cut edges as shown in FIG. 10, the flanges 28, 28 are parallel to each other. become. In addition, in FIG. 10, the connection plate in the upper end of the partition plate 8 of an Example, and the bottom plate of a lower end are abbreviate | omitted.
[0028]
【The invention's effect】
As is apparent from the above description, the present invention increases the width of the opening of the front plate through which the guard arm enters and exits, bends the partition plate into a trapezoidal shape when viewed from the front, and houses the tip of the guard arm. Since the length of the trapezoidal top of the trapezoid is set to about the width of the guard arm and the length of the bottom is set to about the width of the opening of the front plate, the opening can be opened even if the guard arm is tilted slightly. The guard arm can be securely stored.
[0029]
Further, when the guard arm is inclined and passes through the opening, there are various effects such as automatic adjustment of the angle of the guard arm by the wedge action with the sleeve plate.
[Brief description of the drawings]
FIG. 1 is a partially longitudinal side view showing an embodiment of a guard arm device for a window in a normal state (a guard arm is inoperative).
FIG. 2 is a plan view thereof.
3A and 3B are views showing a strike removed from the embodiment of FIG. 1, wherein FIG. 3A is a front view, and FIG. 3B is a side view.
FIG. 4 is a vertical partial side view showing the embodiment of FIG. 1 in an operating state of a guard arm.
FIG. 5 is an explanatory view showing the engagement state of the guard arm and the strike when the guard arm is in operation, with the shoji open, and the frame and the guard arm are seen from the front, and the strike is seen from the back. It is.
FIG. 6 is a front view of a guard arm device according to an embodiment of the present invention, in which the guard arm is indicated by a chain line.
7A and 7B are diagrams showing a partition plate removed from the embodiment of FIG. 6, in which FIG. 7A is a front view, and FIG. 7B is a side view.
8 is a cross-sectional view of the guard arm device taken along line VIII-VIII in FIG. 6;
FIG. 9 is a diagram for explaining the structure of the partition plate and shows a state before the sleeve plate is cut.
FIG. 10 is a diagram for explaining the structure of a partition plate, showing a state in which a sleeve plate is cut and a flange is formed at the cut edge.
[Explanation of symbols]
2 Shoji 3 Shoji frame 4 Storage case 7 Front plate 8 Opening 9 Guard arm 11 Partition plate 12 Action member 13 Relief hole 14 Engagement projection 15 Support shaft 17 Energizing means 19 Fitting hole 21 Guide long hole 22 Engagement long hole 26 Projection 27 Sleeve board 28 Flange

Claims (1)

An elongated plate-like body with an engaging protrusion at the tip and a support shaft at the base, and a hollow storage case attached to a rotary type shoji or door, through the front plate opening on the front of the storage case A guard arm that is mounted so as to be able to advance and retreat, tilt and rotate, and is biased in a backward direction; and a partition plate that divides the internal space of the storage case into a front guard arm storage portion and a rear space portion A strike hole that is attached to a shoji frame or door frame and engages with an engagement protrusion when the guard arm device is operated, and an engagement long hole formed by a guide long hole continuously provided therewith; A working member that is guided so as to be movable in a predetermined direction in the storage case and is linked to an operating means on the indoor side, and has a projecting piece that projects the guard arm from the storage position toward the operating position when the guard arm is operated. To things There are, to expand the width of the opening of the front plate guard arm and out, as well as to fit within the opening even slightly tilted guard arm, bent into a trapezoidal cross section looking at the partition plate from the front, at least the guard arm A guard arm device characterized in that the length of the trapezoidal top of the portion in which the tip of the trapezoid is stored is set to about the width of the guard arm, and the length of the bottom is set to about the width of the opening of the front plate.

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