JP4157926B2 - Shutter switch box - Google Patents

Description

The present invention relates to a switch box for operating a shutter, and more particularly to a switch box structure having an excellent crime prevention function.

Conventionally, a switch box for shutter operation has been installed on the outdoor side of the shutter device. FIG. 7 shows a conventional switch box. The switch box 1 includes a box 2 having an opening, a lid 3 for opening and closing the opening of the box 2, and a push button switch (open button 4, stop button 5, closed button) accommodated in the box 2. 6). A key hole 7 is formed in the lid 3, the lid 3 of the switch box is opened by a key operation using a key (not shown), and the opening button 4 is pressed to raise the shutter curtain and open the opening. Open.

However, recently, a crime has been made in which a hole is directly drilled from the top of the lid 3 without using the key of the switch box, and the shutter curtain is raised by using the hole to raise the shutter curtain to enter the room. Has occurred.
JP 2003-172081 A

An object of the present invention is to provide a switch box having a structure in which the shutter is not opened even when the lid is drilled without opening the lid of the switch box. . Another object of the present invention is to prevent the shutter from being opened without separately providing a new switch or its wiring. Another object of the present invention is to provide a shutter opening prevention means that can be realized by simply exchanging parts for an existing switch box. Still another object of the present invention is to provide a shutter opening / closing prevention means that does not interfere with a normal opening / closing operation such as a remote control operation.

The technical means employed by the present invention in order to achieve such a problem is that, in a switch box having a lid and a push button switch provided therein, a plate-like spring member is provided between the back surface of the lid and the push button switch. the provided, the spring member is in the lid closed, the force directed to the spring member from the lid side to the push button switch is applied, press the stop button push button switch with bulges push button switch side It is comprised so that it may be comprised. In the shutter device, while the stop button is pressed, a signal is not transmitted to the motor of the switch even if the open button or the close button is pressed, and the stop button is pressed by the plate spring member. If it is, the shutter cannot be opened.

In a preferred embodiment, the spring member is supported at both ends, and the spring member normally bulges to the back surface side of the lid, and when a force acts on the spring member from the lid side, Configured to bulge. When a force directed from the lid toward the push button switch acts on the spring member, the spring member warps around the supported end portions and bulges toward the push button switch. Since the bulged state of the spring member bulged to the push button switch side is maintained, the stop button is continuously pushed. More specifically, both ends of the spring member are supported separately from the back surface of the lid.

Although the spring member can be provided on the box side of the switch box, in a preferred embodiment, the spring member is attached to the lid. By attaching the spring member to the lid, when the lid is opened, the pressing of the stop button by the spring member is released, and a normal opening / closing operation can be performed. In one preferable aspect, two support pieces are provided on the back surface of the lid body at a predetermined interval, and both ends of the spring member are respectively supported by the support pieces, so that the spring member is attached to the lid body. .

In another preferred embodiment, the spring member is mounted so as to cover substantially the entire surface of the lid. By doing so, the tip of the drill abuts against the spring member regardless of which part of the lid body is drilled, and the spring member can be effectively bulged and deformed toward the push button switch. The lid is usually provided with a key portion, and the spring member is formed in a shape that avoids the key portion.

In a preferred embodiment, the spring material has a pressing protrusion protruding toward the push button switch, and the spring material is configured to press the stop button through the protrusion. The protrusion may be a member separate from the spring material or a part of the spring member. By providing the protrusion, the stop button can be more reliably pressed when the spring member bulges toward the push button switch. The protrusion is preferably provided at the most bulging portion of the leaf spring member (for example, the central portion between the upper and lower ends of the leaf spring member).

In a preferred aspect, the provision of the spacer prevents the spring material bulging toward the push button and pressing the push button switch from returning to its original position. Normally, a space is formed between the upper part of the spring member and the back surface of the lid, and a spacer is provided in the space. The spacer is configured to move downward (by expanding the space) when the spring member bulges toward the push button, and to be positioned at an intermediate portion in the vertical direction of the spring member. The spacer restricts the spring member bulged to the push button side from bulging again to the back side of the lid. In one aspect, the spacer is moved downward along the rotation axis of the lid, and further downward movement is restricted by contacting the spacer with an intermediate portion of the rotation axis. A stopper is provided. Preferably, the “intermediate part in the vertical direction of the spring member” where the spacer moved downward is located is the central part in the vertical direction of the spring member or the vicinity thereof.

Since the switch box according to the present invention has a leaf spring member configured to bulge to the push button switch side and press the stop button of the push button switch when a force is applied from the lid body side, When drilling is performed on the body, the tip of the drill comes into contact with the spring member, so that the spring member bulges toward the button switch and presses the stop button of the push button switch, and the shutter is released. Is prevented. The present invention uses the stop button originally provided in the switch box, and it is not necessary to provide a separate switch or its wiring, and it does not require much time for installation. Since only the box of the switch box needs to be replaced, it can be easily adopted for an existing switch box. Since the switch for restricting the opening operation is not always pressed in a state in which the lid is closed, the normal opening operation by a remote control operation or the like is not hindered.

As shown in FIGS. 1 and 2, the shutter operation switch box 1 includes a rectangular parallelepiped box 2 having an opening on the front surface, a push button switch accommodated in the box 2, And a lid 3 that opens and closes the opening. The lid 3 is provided with a locking piece 8 that engages and disengages on the opening frame side of the box 2 by rotating in conjunction with the key operation. A key hole 7 is formed in the lid 3, and when a key (not shown) is inserted into the key hole 7 and operated, the locking piece 8 is rotated and retracted to the lid 3 side. Opening is possible. The push button switch can be operated by rotating the lid 3 to open the opening of the box 2.

The push button switch has three buttons, that is, an open button 4, a stop button 5, and a close button 6. The stop button 5 is arranged in the order of the close button 6, and the stop button 5 is located at a substantially central part of the height of the shutter box 1. The open button 4, the stop button 5, and the close button 6 are electrically connected to the shutter opening / closing device.

FIG. 4 is a circuit diagram showing the opening / closing operation of the shutter. The contact PBS of the stop button 5 is normally closed, and the contact PBU of the open button 4 and the contact PBD of the close button 6 are normally open. When the open button 4 is pressed, the contact PBU is closed and an open signal is transmitted to the motor M of the switch to raise the shutter curtain. When the close button 6 is pressed, the contact PBD is closed and a close signal is transmitted to the motor M of the switch to lower the shutter curtain. When the stop button 5 is pressed, the contact PBS is opened, and a part of the opening and closing circuits is cut off. Accordingly, the shutter curtain opening / closing operation is restricted while the stop button 5 is being pressed.

FIG. 3 is a diagram showing the lid 3, and the lid 3 here has a reinforcing structure as compared with the conventional lid 3 as shown in FIG. 7. The lid 3 has a vertically rectangular plate-shaped main body 30 and reinforcing pieces 31, 32, 33, 34 provided on the back surface of the main body 30 in proximity to the four peripheral edges of the main body. The main body 30 constituting the surface portion of the lid 3 is provided with a receiving hole 35 for providing a key portion. The reinforcing piece includes an upper reinforcing piece 31, a lower reinforcing piece 32, a rotating distal end side reinforcing piece 33, and a rotating proximal end side reinforcing piece 34. In the illustrated example, the upper reinforcing piece 31 and the lower reinforcing piece are provided. A U-shaped reinforcing frame body is formed by the rotation tip side reinforcing piece 33 and the rotation tip side reinforcing piece 33, and the turning base end side reinforcing piece 34 is formed slightly shorter than the turning tip side reinforcing piece 33. The rotation tip side reinforcing piece 33 is formed with an opening 36 through which the locking piece 8 rotated by a key operation is projected and retracted.

Between the upper reinforcing piece 31 and the lower reinforcing piece reinforcing piece 32, there is provided a single rotating shaft 37 extending in the vertical direction in the vicinity of the rotating base end side. The upper and lower ends penetrate through the reinforcing pieces 31 and 32 and are pivotally supported by the upper and lower parts of the opening of the box body 2. The lid 3 rotates with respect to the box 2 via the rotation shaft 37 to open and close the opening of the box 2. In the conventional switch box, a short rotation shaft is provided only in the upper and lower parts of the lid, but by adopting a single long rotation shaft 37 as shown in FIG. Strength can be improved. The lid body of the conventional switch box shown in FIG. 7 is composed only of a plate-shaped main body. On the other hand, what provided the reinforcement pieces 31,32,33,34 as shown in FIG. 3 can respond | correspond effectively with respect to prying from the outside. Further, the reinforcing pieces 32 can be used for mounting the spring material 10 as described later.

As shown in FIGS. 1 and 2, the flat spring material 10 is mounted on the back side of the lid 3 with both upper and lower ends supported. The distance between the upper and lower support portions of the spring material 10 is smaller than the height of the leaf spring material 10, and the spring material 10 is curved in a bow shape with the upper and lower support portions as fulcrums. It is supported between the upper and lower support parts. The spring material 10 is mounted on the lid 3 so that the upper and lower support portions (upper and lower ends) of the spring material 10 are located at a position separated from the rear surface of the lid 3 to the rear side (push button switch side). A space is formed between the spring material 10 and the back surface of the lid 3. The spring material 10 is normally attached to the lid 3 in a state of being bulged toward the lid 3 using the space with the upper and lower support portions (upper and lower ends) as fulcrums. (The left figure in FIG. 1, the solid line in FIG. 2). In the illustrated example, the bulging portion of the spring material 10 is normally in contact with the back surface of the lid 3, but the bulging portion of the spring material 10 is not always in contact with the back surface of the lid 3. Good.

On the other hand, a space is also formed between the spring material 10 and the push button switch, and the spring material 10 can bulge toward the push button switch. The upper and lower ends of the spring material 10 are fixed, and even when a force acts on the spring material 10, the upper and lower ends move in the vertical direction, and the upper and lower ends move in the front-rear direction. There is no. Therefore, in the state where the spring material 10 bulges toward the back surface of the main body 30 of the lid 3, when a force acting from the lid to the push button switch acts on the spring material 10, the spring material 10 Due to the force, the upper and lower support parts warp around the fulcrum, and conversely bulge toward the pushbutton switch. The spring material 10 has a central portion in the height direction (vertical direction) that bulges most toward the push button switch, and the most bulged portion faces the stop button 5 of the push button switch. A pressing protrusion 11 that protrudes toward the push button switch (stop button 5) is provided at a central portion in the height direction of the spring material 10 (that is, a portion that swells most). When the spring material 10 bulges to the push button switch side, the pressing projection 11 presses the stop button 5 and interrupts the opening / closing drive circuit. Even if the open button 4 is pressed in this state, the shutter curtain cannot be raised. The pressing protrusion 11 is set to a height that does not hit the stop button 5 in a normal state in which the spring material 10 bulges to the back side of the lid body.

The spring material 10 is a plate material having a substantially vertical rectangular shape, and covers a substantially entire surface of the lid 3 although a notch is formed at a central portion in the height direction so as to avoid a key portion provided in the lid 3. It is provided as follows. Therefore, no matter which part is drilled from the outside of the lid 3, the tip of the drill comes into contact with the spring material 10, and a force toward the push button switch acts on the spring material 10, so that the spring material 10 is Warps around the upper and lower ends and bulges toward the pushbutton switch. The spring material 10 is preferably a metal leaf spring such as a leaf spring steel, but may be a spring material made of a member other than a metal such as a resin as long as it has a predetermined strength and elasticity.

A configuration for mounting the spring member 10 and the lid 3 will be described with reference to FIG. In a preferred embodiment, the leaf spring material 10 includes a spring material main body 100 that can be deformed into a bow shape, and mounting pieces 101 that are integrally formed at both upper and lower ends of the main body 100. The leaf spring material 10 can be bent toward the lid body 3 side and the push button switch side with the upper and lower end portions of the main body 100 as fulcrums, and the leaf spring material 10 swelled toward the lid body side has a push button switch. When a force directed toward is applied, the main body 100 is warped with the upper and lower ends of the main body 100 as fulcrums, and the swelled toward the push button switch. The leaf spring material 10 is attached to the lid 3 via the upper and lower attachment pieces 101. In a preferred embodiment, the upper and lower attachment pieces 101 are attached to the upper and lower support pieces 12 provided on the back surface of the lid 3. Is attached. The upper and lower support pieces 12 are attached to an upper reinforcing piece 31 and a lower reinforcing piece 32 provided on the back surface of the lid 3.

The upper and lower support pieces 12 have an L shape in a side view from a horizontal piece 120 extending toward the push button switch and a vertical piece 121 extending perpendicularly from the tip of the horizontal piece 120. Upper and lower ends of the main body 100 of the leaf spring material 10 are in contact with the vertical piece 121 of the support piece 12 from the lid 3 side. Further, the horizontal mounting piece 101 of the spring material 10, the horizontal piece 120, the upper reinforcing piece 31, and the lower reinforcing piece 32 of the support piece 12 have substantially the same dimensions, and the mounting piece 101 of the spring material 10. Is in close contact with the upper reinforcing piece 31 and the lower reinforcing piece 32, and the tip of the mounting piece 101 of the spring material 10 is in contact with the back side of the lid 3. When a force acts on the leaf spring material 10 from the lid 3 side, the contact portion between the upper and lower ends of the main body 100 of the leaf spring material 10 and the vertical piece 121 is warped and the leaf spring material 10 is warped. It bulges toward the pushbutton switch.

In FIG. 5, the upper and lower support pieces 12 are attached to the upper reinforcing piece 31 and the lower reinforcing piece 32 provided on the back surface of the lid 3, but the configuration of the upper and lower support pieces 12 is limited to this. Instead, the portions having the upper reinforcing piece 31 and the lower reinforcing piece 32 may constitute the support piece 12. When the lid 3 does not have a reinforcing piece, the upper and lower support pieces 12 may be provided directly on the back side of the lid 3.

FIG. 6 is a view showing another configuration of mounting of the leaf spring material and the lid. 6A, the upper reinforcing piece 31 and the lower reinforcing piece 32 also serve as upper and lower supporting pieces, and the upper reinforcing piece 31 and the lower reinforcing piece 32 are bent vertically at the ends. The piece 121 is formed, and the upper and lower ends of the main body 100 of the leaf spring material 10 are in contact with the vertical piece 121 of the support piece from the lid 3 side. The mounting pieces 101 at the upper and lower ends of the leaf spring material 10 are formed in a U shape in side view, and the upper and lower support pieces (the upper reinforcing piece 31 and the lower reinforcing piece 32) are formed with locking holes. The U-shaped mounting piece 101 in a side view is locked in the locking hole.

FIG. 6B is a view showing another configuration of mounting the leaf spring material and the lid, and shows an improved type of the support piece shown in FIG. A second horizontal piece 122 is formed by bending the central portion of the vertical piece 121 of the support piece inward, and a notch is formed in the central portion in the width direction of the upper and lower ends of the main body 100 of the leaf spring material 10. The horizontal piece 122 is locked to the notch. 5 and 6 show the mounting configuration of the leaf spring material 10 and the lid 3, it will be understood by those skilled in the art that various configurations can be employed for mounting the leaf spring material 10 and the lid 3. It can be easily understood, and the configuration of mounting the leaf spring material according to the present invention is not limited to the illustrated one.

In the switch box 1 configured as described above, when drilling is directly performed from the surface of the lid body 3 of the switch box 1, when the drilling of the lid body 3 is completed, a bow provided on the back side of the lid body 3 The tip of the drill comes into contact with the spring material 10 curved into a shape, and a force toward the push button switch acts on the spring material 10. With this force, the spring material 10 is warped and bulges toward the stop switch 5, and the pressing projection 11 provided on the spring material 10 presses the stop switch 5 to shut off the shutter opening / closing drive circuit. Furthermore, even if drilling is performed and the open button is pressed, the shutter curtain cannot be raised while the stop switch 5 is pressed. The spring material 10 also has a role of releasing the tip of the drill during drilling. That is, since the tip of the drill hits the spring material in an inclined manner, the tip escapes and it is difficult to make a hole. In addition, when spring steel is used as the spring material, the tip of the drill is attached to the spring steel in order to make a hole because the material is hard. In this case, the spring steel expands to the push button side by the pressing force. And press the stop button. Even in the switch box 1 in which the lid 3 is drilled, if the lid 3 is opened using a key, the spring material 10 mounted on the lid body rotates together with the lid 3 and the spring material 10 The pressing of the stop button 5 by the pressing protrusion 11 is released, and a normal opening / closing operation becomes possible. To return the spring material 10 to the original state, it is only necessary to open the lid body and press the spring material 10 to bulge toward the lid side. Moreover, the switch box 1 of this invention can be comprised also by replacing | exchanging the box 2 and the cover body 3 with respect to the existing switch box.

8 and 9 show another preferred embodiment. The spring material 10 bulging toward the push button switch and pressing the stop button 5 returns to the original position on the lid side, and the stop button 5 The present invention relates to a mechanism that prevents the pressing from being released. FIG. 8 shows a normal time, and the spring member 10 has a bow-shaped posture with the upper and lower end portions as fulcrums and the central portion in the vertical direction bulges toward the lid. The upper and lower ends of the spring material 10 are separated from the back surface of the lid body, and a space S is formed between the back surface of the lid body and the upper portion of the spring material 10. The space S is defined by the back surface of the lid body, the upper reinforcing piece 31 of the lid body, and the surface portion of the upper portion of the spring member 10 extending obliquely downward from the push button switch side toward the lid body side. The space S is narrowed from the upper side to the lower side by the surface portion of the inclined spring material 10. In a normal state, the spacer 20 is provided in the space S. The lower end of the spacer 20 is in contact with and supported by the surface portion of the inclined spring material 10. Specifically, the spacer 20 is a member having a substantially square shape in a front view and a cross-sectional view, and is provided so as to be movable in the vertical direction with respect to the rotation shaft 37 of the lid. As described above, the lower end of the spacer 20 is in contact with the inclined spring material 10 so that it does not fall.

When the spring material 10 bulges to the push button switch side from the state of FIG. 8, the upper portion of the spring material 10 inclined shape moves to the push button switch side, so that the space S becomes large. Since the space S is enlarged, the spacer 20 is not supported by the inclined surface portion of the spring member 10, and thus moves downward along the rotation shaft 37 by its own weight. A stopper 21 is provided at the central portion in the vertical direction of the rotation shaft 37 (the central portion in the vertical direction of the spring member 10), and the spacer 20 abuts against the stopper 21, so that the spacer 20 is further moved downward. Movement is restricted. Therefore, while the spring material 10 bulges toward the push button switch and presses the stop button 5, the spacer 20 has a vertical central portion of the bulging spring material 10 or its vicinity (in the drawing, the central portion). Is located on the back side (lid side). In this state, even if it is attempted to return the spring material 10 to the original position, since the surface portion of the spring material 10 abuts against the spacer 20, the spring material 10 cannot bulge to the cover body side and automatically In addition, the spring material 10 bulges again toward the push button, and the pressing projection 11 presses the stop button 5. The spacer prevents the most bulging portion of the central portion in the vertical direction of the spring member 10 from moving to the back side of the lid body from the line connecting the upper and lower ends of the spring member. The shape and configuration of the spacer 20 are not limited to those illustrated.

INDUSTRIAL APPLICABILITY The present invention is effective for crime prevention measures for a shutter operation switch box (measures for drilling a lid by a drill).

It is a figure which shows the switch box which concerns on this invention, and shows in the state which opened the cover so that the inside was easy to see for convenience of explanation. The left figure shows the form of the leaf spring material in the normal state, and the leaf spring material bulges toward the outside (the lid side) and has a bow shape. The right figure shows the form of the leaf spring material when the stop button is pressed, and the leaf spring material bulges inward (to the push button switch side) and has a bow shape. In the right figure, assuming that the lid is closed, the pressing protrusion of the leaf spring material comes into contact with the stop button and presses the button. The switch box which concerns on this invention is shown, the left figure is a longitudinal cross-sectional view, and the right figure is a front view shown by notching a part. In the left diagram, the leaf spring material corresponding to the leaf spring material in the left diagram in FIG. 1 is indicated by a solid line, and the leaf spring material corresponding to the leaf spring material in the right diagram in FIG. 1 is indicated by a two-dot chain line. It is a figure which shows the cover body of the switch box which concerns on this invention. It is a circuit diagram which shows the opening / closing operation | movement of a shutter. It is a figure which shows the structure of mounting | wearing with a leaf | plate spring material and a cover body. It is a figure which shows the other structure of mounting | wearing with a leaf | plate spring material and a cover body. The conventional switch box is shown, the left figure is a longitudinal cross-sectional view, and the right figure is a front view with a part cut away. It is explanatory drawing of the mechanism which prevents that the press of a stop button is cancelled | released in a cover body closed state. It is explanatory drawing of the mechanism which prevents that the press of a stop button is cancelled | released in a cover body closed state.

Explanation of symbols

1 Switch Box 2 Box 3 Lid 4 Open Button 5 Stop Button 6 Close Button 10 Leaf Spring Material 11 Pressing Projection

Claims (7)

In a switch box having a lid and a push button switch provided therein, a plate-like spring member is provided between the back surface of the lid and the push button switch, and the spring member is in the closed state of the spring. When a force directed toward the member from the lid side to the push button switch is applied, the shutter operation switch box, characterized by being configured to press the stop button push button switch with bulges push button switch side . 2. The shutter operation according to claim 1, wherein the spring member normally bulges to the back side of the lid, and bulges to the push button switch side when a force is applied to the spring member from the lid side. Switch box. The shutter operation switch box according to claim 2, wherein both ends of the spring member are supported by being separated from the back surface of the lid. 4. The shutter operation switch box according to claim 1, wherein the spring member is attached to the lid. 5. The shutter operation switch box according to claim 4, wherein the spring member is mounted so as to cover substantially the entire surface of the lid. 6. The spring material according to claim 1, wherein the spring material has a pressing protrusion protruding toward the push button switch, and the spring material presses the stop button through the protrusion. A switch box for shutter operation, characterized by The space between the upper part of the spring member and the back surface of the lid is normally formed in any one of claims 1 to 6, and a spacer is provided in the space. The member is configured to move downward when the member bulges toward the push button switch, and is positioned at an intermediate portion in the vertical direction of the spring member. The spring member bulges toward the push button switch. A switch box for operating a shutter, which restricts the bulge from expanding again to the back side of the lid.

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