JP3242976B2 - Door peep monitoring device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a peeping monitoring device mounted on a door, and more particularly to a device which can be viewed straight forward, right and left, and downward at any time.

[0002]

2. Description of the Related Art Problems relating to home security and defense are frequently reported. The biggest problem is that
Now and in the past, how to easily identify who came to a house or residence. People have come with a variety of devices to help identify visitors. For a long time, various peepholes have been used to identify visitors. During this time, the traditional peepholes have also evolved to use ultra-wide-angle fisheye lenses to enlarge their field of view or disguise, for example, like one-way glass, to hide people in the house.

[0003] Generally speaking, the residence of many families, especially urban apartments, has special problems. For example, improper lighting around the house or irregularly shaped passages make it a good hiding place for visitors who might not be able to find it.

Various attempts have been made to improve the apparatus in order to obtain a wide-angle, bright field of view. However, conventional apparatuses have various problems, for example, they are difficult to see, have low reliability, are easily mischievous, and promote fire spread. Have one or several of the following problems:

No. 3,973, by Miyakawa et al.
No. 835 discloses a periscope having a fixed one-way or watermark mirror. Look in the axial direction through a one-way mirror,
Also, by adjusting the position of the mirror, the radiation direction can be seen. However, this mirror acts like a filter, reducing the effective amount of light reaching the eyepiece when looking in the axial direction.

[0006] US Pat. No. 4,050,792 discloses a peeping device consisting of one housing and three separate translucent components providing a paranoma screen. The field of view is inherently limited by the position of each perspective component and cannot be seen in a right angle direction. Further, in the case of individually separated perspective parts, the perspective lines by the three devices must be adjusted respectively. Finally, the construction of the device is easy to spread because the mounting holes in the door act as chimneys to inhale smoke.

US Pat. No. 4,964,7 by Degnan
No. 11 discloses a prying device having a pivotally mounted mirror having an opaque reflective surface aligned with a plurality of monitoring ports. By turning the eyepiece, the mirror can be swung to a position in front of the monitoring port and the radial direction can be seen, and further by turning the eyepiece and moving the mirror off the axis of the field of view, Can be done. However, whether the line of sight looking between the peeping port on one side of the door and the monitoring port on the other side of the door is direct or through a mirror, the observer Obscure observers are often confused, and when the visible image is difficult to distinguish (for example, when the passage lighting is dim), it may not be possible to determine when the perspective line is oriented in the intended direction . An indication can be provided on the eyepiece so that it is possible to determine when the line of sight is oriented in the intended direction and which one it is, but such an indication on the eyepiece is Anyone looking at the lens's surveillance port with their eyes pressed cannot see this mark and is useless. Accordingly, one object of the present invention is to provide a peeping device that can provide highly accurate monitoring along any line of sight. Another object is to provide a peeping device in which all lines of sight have similar monitoring accuracy. Yet another object is to provide a device that acts as a fire protection device.

It is also an object of the present invention to provide a preferred embodiment of a device capable of invisibly contacting a surveillant to indicate that one of the perspectives has been reached. It is. Yet another object is to provide a device characterized by high reliability and low mischief. It is a further object to provide a device that is simple and easy to manufacture, use and maintain.

[0009]

SUMMARY OF THE INVENTION The above objects of the present invention are attained by the following door or wall-mounted peeping device. The device comprises: (A) an axially extending hollow housing that is non-rotatably mounted through and through a surface of a wall or door, where the housing protrudes outward from the surface. A rear portion extending through the surface and projecting outwardly from a rear surface opposite the wall or door; the front portion having a cam surface and an axis relative to the housing axis. Forming a plurality of monitoring ports disposed axially and non-axially;

(B) A hollow inner tube that extends axially rotatably with respect to the housing, having a front portion of the tube and a rear portion of the tube, the front portion of the tube being the front portion of the housing. Located at least partially within the front part, and
A rear portion of the tube protruding outward from the opposite rear surface;

(C) a rotatable hollow knob which is mounted on the rear portion of the tube and which is rotatable with the rear portion of the tube, which is outside the rear surface of the opposite side, and is coaxial with the axial monitoring port. One with a peep port arranged;

(D) a mirror assembly disposed within and rotating with the inner tube, the mirror assembly being in a first direction crossing the axis of the inner tube at an acute angle and parallel to the axis of the inner tube; And a mirror that is movable between a second orientation remote from the axis and the mirror assembly having a curved cam follower engaging the cam surface, Turning the knob relative to the housing to rotate the mirror such that when the mirror is in the first orientation, the non-axial direction monitoring through the mirror from the peep port. Perspective lines leading to any one of the ports are respectively formed at different times, and when the mirror is in the second orientation, a perspective line is formed from the peep port directly to the axial monitoring port. Things to do
Contains.

In a preferred embodiment, the mirror is rotated by rotating the knob to provide a line of sight from the peep port through the mirror to one of the lateral and downward monitoring ports. They are formed successively at different points in time. One open end, wherein the front end of the tube is generally U-shaped and can make a line of sight from the peep port through the mirror to any one of the non-axial monitoring ports; Has sides.
The cam surface forms a 360 ° groove of about 180 ° semi-circular and about 180 ° semi-elliptical.

The mirror is typically opaque and, when placed in a line of sight from the peep port to the sideways or downwardly directed monitoring port, is about 20-40 relative to the longitudinal axis of the inner tube.
It is arranged at an angle of °.

In one particularly preferred embodiment, the housing and the inner tube are snapped to indicate to the user that a line of sight has been made between the peep port and any one of the monitoring ports. Is formed. More particularly, a corrugated washer having at least one corrugated portion is attached to the housing, and the inner tube has a plurality of circumferentially spaced notches, which allow the monitoring port to access the monitoring port. One of the ports
When a line of sight is formed, the wave portion is used as if it were received. The corrugated washer is non-rotatably mounted to the rear portion of the housing, and a plurality of notches provided at equal intervals on the circumference are provided at equal intervals. To prevent the spread of fire, the rear part of the housing is made of metal, the rear part of the inner tube is made of metal, and a lens made of Pyrex is placed in the rear part of the tube. The rear portion of the housing, the rear portion of the inner tube, and the lens of Pyrex form a fire barrier in the device. The housing and the front part of each of the tubes are plastic. A wide-angle lens is arranged at each of the monitoring ports. A magnifying lens is disposed within the inner tube on a line of sight between the peep port and the monitoring port.

[0016]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of an apparatus for monitoring a peep according to the present invention; FIG. The peeping monitoring device 10 is externally composed of a housing 12 extending in the axial direction and a rotatable knob 14.

As shown in FIGS. 2, 3 and 10, the apparatus 10 is for mounting a door 16 (indicated by a dashed line), and an axially extending housing 12 is non-rotatably mounted on the door 16. In particular, the door 16 penetrates this,
An aperture is provided that connects the front or outer surface 20 and the rear or inner surface 22 of the door 16. The terms front or outside surface and rear or inside surface of the door are, of course, expressions relative to the person using the peep monitor. The housing 12 has a forward portion 30 projecting outwardly from a front or outer surface 20 of the door 16 and a penetrating door 16 extending outwardly from a rear or inner surface 22 opposite the door 16. And a protruding portion 32.

Referring now to FIGS. 2-4 and 6, the front portion 30 of the housing is generally dome-shaped, flattened at the tip, and axially disposed along the axis of the housing. A monitoring port 36, a plurality of lateral or lateral monitoring ports 38, 40 and a downward monitoring port 42 are formed. A lens 44 is fixed in each monitoring port. Preferably, these lenses are wide-angle lenses with a field of view of approximately 58 ° and there is no need for an ultra-wide-angle lens.

The wide-angle lens 44 is preferably a plano-concave lens, that is, the inner surface of each lens is concave and the outer surface on the opposite side is flat. In the description of the present invention, the term wide-angle lens means a lens having a field of view that extends from one end of the field of view to another end of the field of view at least 50 °. The lens can be made of glass, plastic (eg, acrylic products), or other transparent materials. The acrylic lens is particularly preferably, for example, an acrylic lens of about 65 diopters having a focal length of about 50 mm and a center thickness of about 1.5 mm. Of course, a series of different specifications are used for lenses made of different materials, for example, for a glass lens of about 65 diopters,
The focal length can be about 13-16 mm and the center thickness can be about 6 mm.

Each lens 44 is connected to a respective monitoring port,
For the lateral monitoring ports 38, 40, an acute angle of 20-40 °, preferably 25 °, with respect to the axis of the housing,
The downward-facing monitoring port 42 is mounted at 35 ° to maximize viewing of the passage outside the door and minimize viewing of the front or outer surface of the door 16. The lens 44 of each monitoring port 34 is positioned to provide an axial, lateral, and downward view with respect to the axis of the housing, respectively, and covers all external views. It does not have an upward field of view, since there is firstly no chance of a sudden intruder hanging outside of the front part 30 of the housing, for example on the ceiling of the aisle. Sideways and downward monitoring ports 38, 40, 42 are door 1
Despite being away from the front or outer surface 20 of 6,
The wide-angle lens 44 in the monitoring port 34 has such a wide field of view that a sudden intruder near the door cannot be hidden (either on one side or below the front part 30 of the housing). , Located in the front part 30 of the housing.

The rear portion 32 of the housing 12 is generally cylindrical. The front end of the door 16 disposed in front of the front or outer surface 20 forms a radially outwardly extending flange 50, while at least partially from the rear or inner surface 22 of the door 16. A screw is cut on the circumferential surface of the rear end extending outward. Preferably, as shown, the shaft portion between the front and rear ends of the rear portion 32 of the housing has a shoulder 54 that engages a similar shoulder of a hole through the door 16 and includes The rear portion 32 does not shift backward with respect to the door 16.

To limit the forward movement of the rear portion 32 of the housing, a mounting nut 56 is screwed into the threaded rear end 52 of the rear portion 32 of the housing.
Preferably, a washer 58 is placed between the nut 56 and the inside or inside surface 22 of the door. The mounting nut 56 and shoulder 54 secure the position of the rear portion 22 of the housing relative to the door 16 so that the front portion 30 of the housing can be easily mounted to the door 16 with only minor scratches. I can do it.

A washer-like annular connecting member 60 which is a functional and structural part of the housing 12 is connected to the front and rear parts 3.
0 and 32 are connected. This centered portion of the connecting member 60 is located behind the flange 50 of the rear portion 32 of the housing and suppresses backward movement relative to the front portion 30 of the housing. The outer part of the connection member 60 is fixed to the front part 30 of the housing by three screws 62, the heads of which protrude rearward from the connection member 60.

The exposed rearwardly projecting head 62 of the screw 62 merely rests on the front or outer surface 20 of the door 16 and the friction between them causes the front portion 30 of the housing to move the door 16 forward. Or a recess (not shown) is provided on the front or outer surface of the door 16 for receiving the heads of the three screws 62 and the screw head and the recess. Can prevent the front portion 30 of the housing from moving with respect to the door 16. In either case, the screw 12 allows the housing 12 to be mounted on the door 16 so as not to rotate. If desired, the head of the screw 62 is buried in the countersunk hole of the connecting member 60, flush, and a rearwardly projecting projection (not shown) is provided on the connecting member 60 or on the front portion 30 of the housing (for the screw). Head 12), housing 12
Can be fixed so as not to rotate with respect to the door 16.

A cam, generally designated by the reference numeral 70, is non-rotatably mounted within the front portion 30 of the housing. It is better to separate it structurally, but it is functionally part of this part. Bevels or contours are provided on the inner and / or outer edges of the cam 70 so that it can be non-rotatably positioned with respect to other portions of the front portion 30 of the housing. This cam 70 can be an integral part of the front part 30 of the housing, if the material of the front part 30 of the housing is suitable and its method of assembly allows. FIG.
When the cam 70 is not an integral part of the front part 30 of the housing as shown in FIG. 2, the outer periphery of the cam is shaped and shaped to prevent the rotation of the cam 70 with respect to the front part 30 of the housing. . Alternatively or additionally, the inner periphery of the cam 70 may form an anti-rotation surface that abuts a portion of the inner surface of the front portion 30 of the housing for the same purpose. See, for example, a slot 73 on the inner peripheral surface that receives a protrusion (not shown) on the front portion 30 of the housing. This cam 70 has a cam surface in the form of a 360 ° groove 72 extending around a U-shaped central aperture 74 for reasons to be described later. This groove 72 is formed in two separate parts: a semicircular groove part 76 extending 180 ° along the lower part of the aperture and a semicircular or semielliptical part extending 180 ° along the upper part. And a groove portion 78 of the shape. The semi-circular groove portion 76 is provided only on the back surface of the cam 70, while the semi-elliptical groove portion 78 extends deeper than the groove portion 76, and preferably extends through the cam 70. The reason will be described later.

Next, as shown in FIGS. 2, 3, 8 and 10, an axially extending U-shaped hollow inner tube 80 is rotatable with respect to the housing 12 and coaxial with the longitudinal axis of the housing 12. It is provided in. The tube 80 includes a tube front portion 82 disposed at least partially within the housing front portion 30 and a tube extending at least partially outward from the rear or inner surface 22 of the door 16. has a portion 84 after the portion of the two tubes 82 and 84
Penetrates the rear portion 32 of the housing , and thus the door 16
And extends in the axial direction. The rear portion 84 of the tube protrudes further from the rear end of the rear portion 32 of the housing, and after the housing 12 is attached to the door 16 with the nut 56, the mounting screw 88 causes the knob 14 to move to the rear end of the tube 84. Adjacent to it and non-rotatably fixed. A front portion 82 of the tube and a rear portion 84 of the tube are secured to each other with a neck 114;
The housing 12 can be rotated as a single unit.

The rotation knob 14 has an axial monitoring port 36.
And a peep port 90 which is coaxially arranged on the line. An eyepiece 92 is placed in the knob 14 sandwiched between a pair of washers 94, and the assembly of the eyepiece 92 and the pair of washers 94 forms an eyepiece assembly as a rigid plug-in part 96 and behind the tube. The rear end 86 of the portion 84 is held in place in the knob 14. In particular, knob 1
This rigid plug-in part 9 made of steel to strengthen 4
6 prevents radial movement or backward movement of the eyepiece assembly, while rear end 86 of the inner tube prevents forward movement.
This eyepiece 92 is not prescription, but is preceded by a magnifying lens assembly which is connected to the front magnifying lens 100 and a prescription made of pyrex or other heat resistant material. Not intermediate lens 102
And a washer 104 on the rear side. Magnifying lens 100 is preferably made of acrylic or glass,
It has a refractive index of 10.4 diopters and a focal length of about 94.8 mm. The magnifying lens assembly is disposed along the length of the rear portion 84 of the tube and the rear portion 84
It is held at a predetermined position by contacting the split pipes 110 and 112 in the inside. The split tube 112 behind the magnifying lens assembly abuts against the washer 94 to help hold the eyepiece assembly in place. The forward end of split tube 110 is restricted from moving forward by the portion of neck 114 having a reduced diameter at the forward end of rear portion 84 of the tube. Mounting nut 56, washer 5
8, the insert 96, the rear part 32 of the housing, the rear part 84 of the tube and the split tubes 110, 112 are preferably made of refractory metal and penetrate through the hole in the door 16 along the Pyrex lens 102. To form a fire barrier. These components work together to prevent a chimney effect where the flame is drawn through the holes in the door 16 into the room behind the door. Therefore, other parts of the housing 12 (for example, the front part 30 of the housing, the connecting member 60, etc.), the inner pipe 8, unless otherwise required.
0 (e.g., tube front portion 82) and other components (e.g., knob 14) need not be particularly fire resistant, e.g., ABS plastic (acrylonitrile butadiene styrene resin), but are preferably inexpensive and molded. However, it is preferable that the material has high rigidity and high strength. In this way, the peep monitoring device 10 of the present invention is substantially more muffled by a substantially continuous metal wall, and other parts of the device (eg, the front portion 30 of the plastic housing and the plastic 82) is destroyed by an intruder,
In the event of a fire, Pyrex protects the hole in door 16.

The front portion 82 of the tube is generally U-shaped for reasons that will be described later. As shown in FIG. 7, a bearing 120 is disposed between the cam 70 and the front end of the front portion 82 of the tube. The bearing 120 rotates with the inner tube 80 and can be considered structurally and functionally as its front end. The rear end of the front portion 82 of the tube is fixed for rotation as a unit to the neck 114 at the front end of the rear portion 84 of the tube.

In particular, as shown in FIGS.
A mirror assembly, generally designated by reference numeral 130, is a portion 82 in front of the tube.
Are arranged so as to rotate as one unit. The mirror assembly 130 includes a flat, typically square mirror 134 (with an opaque reflective surface) and a frame 132 having a central aperture 136.
Is supported on this frame, and operates as one unit. A general glass mirror requires a frame 132, but it goes without saying that a mirror 134 having sufficient strength and capable of forming the frame 132 can be used by itself as a replacement for the mirror assembly 130. I can do it.

At one end of the frame 132 is a pair of outwardly projecting hinge pins, and preferably, a cam follower 140 intermediate the hinge pins 138. The hinge pin 138 is provided in the fitting recess 1 on the front surface of the bearing 120.
The mirror assembly 130 and the bearing 120 are engaged so as to rotate as one unit. This fitting recess 14
2, further, the mirror assembly 130 has its hinge pin 13
8 can be rotated. This mirror assembly 130
It is dimensioned so that it can fit into the front portion 82 of the U-shaped tube, such that the mirror faces the opening of this portion. The rotation of the inner tube 80 causes the mirror assembly 1
30 and the bearing 120 can be rotated.

The cam follower 140 is preferably in the form of a curved projection, ie a curved flat pin, and the cam 7
It has a shape and size that engages in the zero groove 72. Knob 1
The rotation of the cam follower 1 is transmitted to the mirror assembly 130 via the inner tube 80 via the mounting screw 88 via the mounting screw 88.
40 moves along the longitudinal direction of the semicircular groove portion 76,
The reflecting surface of the mirror 134 (preferably 20 to
40 ° acute angle), first one lateral monitoring port 3
8, 40, then downwardly facing monitoring port 42, and finally one other lateral monitoring port 40, 38. When the knob 14 is further rotated, the mirror assembly 130 further rotates, and the cam follower 140
Moves in the semi-elliptical groove portion 78 of the cam groove 72. This semi-elliptical groove portion 78 relative to the position of the hinge pin 138
Of the mirror assembly 130 acts on the cam follower 140,
Is pivoted upward about the hinge pin 138, creating an axis parallel to and away from the axis of the tube, resulting in an axial monitoring of the viewing port 90 of the knob 14 and the front portion 30 of the housing. Direct viewing between the port 36 is enabled. Similarly, when the cam follower 140 separates from the semi-elliptical groove portion 78 and returns to the semi-circular groove portion 76, pressure is applied to the cam follower 140 by the groove 72,
The mirror assembly 130 returns to its original orientation at an acute angle to the axis of the inner tube. Since the cam follower 140 has a curved shape, the mirror assembly does not come off the cam grooves 72 and 78.

The semi-elliptical groove portion 78 has a large radius and a small radius forming three curved portions sandwiching the two flat portions 72A and 72B, respectively. The resulting shape creates a semi-elliptical groove with a vertex 72C. These flat portions allow the curved cam follower 140 to smoothly pass through the semi-elliptical groove portion 78 without being supported by the groove. The curved cam follower 140 is shown in FIG.
And prevents the mirror assembly from slipping out of the grooves 78 and 76 when the mirror assembly rotates.

Thus, mirror 134 is oriented in a first direction (solid line in FIGS. 2 and 3 and dashed line in FIG. 2) at an acute angle across the axis of the inner tube.
And a second orientation (shown in FIG. 10) parallel to and away from the axis of the inner tube. By rotating the knob 14, and thus the inner tube 80 relative to the housing 12, the mirror can be (always) rotated (and only at a certain time). In particular, when the mirror 134 faces the first direction,
The line of sight is formed at different times from the peep port 90, through each of the sideways and downward facing monitoring ports 38, 40, 42, through the mirror, and when the mirror is in the second direction, the line of sight is , Formed by a line directly connecting the peep port 90 and the monitoring port 36 in the axial direction. At this time, the mirror assembly 130 is oriented in the second orientation, completely away from the axis of the tube into the open side of the front portion 82 of the U-shaped tube,
It is located thereon and substantially parallel thereto.

Depending on the initial orientation of the knob 14 (and thus of the mirror assembly 130) and the subsequent direction of rotation, movement of the mirror (in the axial direction directly from the axial monitoring port 36) to a second orientation of the mirror. Occurs immediately after viewing through either of the lateral monitoring ports 38,40. Further, if desired, a different cam groove can be used to change the order of peeping performed through the rotation of knob 14.

In the first orientation, the reflecting surface of the mirror is preferably
In other words, it is inclined at an acute angle of 20 to 40 degrees (same as the acute angle formed by the wide-angle lens 44 with respect to the axis of the housing) with respect to the axis of the inner tube, and the sideways and downward monitoring ports 38, 40. , 42 are reflected by mirror 134 in the axial direction of the tube to enter peep port 90 without distortion. The mirror 134 is preferably at 25 ° to the rays coming from the lateral monitoring ports 38, 40 and 35 ° to the rays coming from the downward monitoring ports 42.

When the mirror assembly 130, particularly its curved cam follower 140, moves in the groove 78 and approaches a direction parallel to the tube axis (ie, the second direction in FIG. 10), the cam follower The hinge pin 13 having a fixed distance from the cam 70
It rotates about 8 and further enters the groove 72. The cam follower 140 extends all the way to the depth of the groove 76 .
Therefore , the groove portion 78 must be further deepened or, as shown in the figure, completely penetrate the cam 70. Although the cam surface is shown as groove 72, not all surfaces of groove 72 are required to guide cam follower 140 as desired. That is, according to the present invention,
Only the portion that functions as the cam surface is actually needed.

The torque generated by the rotation of the knob 14 can be directly applied to the side surface of the mirror assembly 130 via the tube 80, and the assembly and the bearing 120 can be forcibly rotated. However, in this case, the frame 132 is easily worn by repeated use. Therefore, in the case of the present invention, as shown in FIGS. 7 and 8, a pair of diametrically opposed projections 160 are formed on the front end of the front portion 82 of the tube.
And a pair of diametrically opposed recesses 162 for receiving the projections 160 are formed in the bearing 120, and the rotation of the knob 14 is directly transmitted to the bearing 120 via a tube 80, and the bearing 120 is rotated to rotate the hinge pin 1.
The mirror assembly 130 is caused to rotate by the engagement between the recess 38 and the recess 142. As a result, even if used repeatedly,
The mirror is less likely to deviate from the desired center position and the mirror is more stable (immediately less mirror shuddering).

As shown in FIG. 5, the rear surface 170 of the knob 14
, In this case an arrow, and by setting the knob to this position, the axial direction can be viewed directly from the peep port 90 via the axial monitoring port 36. (For example, the display "forward" is used with arrow 172.) However, as described above, such a display is of little use when the observer is pressing his eye into the peep port 90. This display, especially arrow 17
2, the knob is rotated to the proper position even if the knob is protruded and / or the side of the knob is flattened so that a person using the device can sense it tactilely. It is sometimes difficult to confirm which monitoring port 36 to 42 is watching.

Therefore, as shown in FIGS. 2, 3, 8, and 10, in a preferred embodiment of the present invention, the knob 14 is rotated to rotate the mirror assembly 130, ie, (directly or mirrorly). Means are provided to non-visually indicate (via 134) when the line of sight has been completed between the pry port 90 and one of the monitoring ports 36-42. This means has a corrugated washer 180 that is non-rotatably mounted in the rear portion 32 of the housing and a plurality of corresponding corrugated cuts formed in the rear surface 184 of the front portion 82 of the tube. This wave washer 180 is fixed to the rear part 32 of the housing by a pin 190 at only one place, and the wave
When the 92 is pushed by the uncut portion of the rear portion 184 of the tube, it allows the remaining portion of the washer 180 to extend slightly outwardly.

As shown, the corrugated washer 180 has one corrugated portion 192 extending across its annular portion, while the rear surface 184 of the tube has a pair of notches extending perpendicularly to each other in its circumferential surface. 182. Of course, instead, the corrugated washer 180 may be provided with a pair of corrugations 192 disposed at right angles to each other, and
Can be other configurations, including those where only a single waveform 182 is formed. In each case, the knob 14 and thus the front portion 82 of the tube rotate relative to the rear portion 32 of the housing, the mirror 134 is oriented properly, and the viewing port 90 and the monitoring ports 36-42 are turned. If a line of sight (whether through a mirror or directly) is formed between the two, the corrugated portion 192 and the notch portion 182 are engaged, and can be heard when the corrugated portion 192 is fitted to the corrugated washer 180. A loud snapping sound and / or tactile sensation is generated, and the completion of the perspective line can be easily detected.

Still another function of the corrugated washer 180 is to constantly apply forward pressure to the inner tube 80 and the bearing 120 to press the bearing 120 against the cam 70 while holding the hinge pin 138 of the mirror assembly 130 therebetween. The function is to push the cam follower 140 into the cam groove 72.

To mount the device 10 to the door 16, an aperture of appropriate geometry to receive the rear portion 32 of the housing is drilled into the door, preferably having a shoulder therein for receiving a shoulder 54 therein. To have. A small drill hole is provided in the front or outer surface 20 of the door 16 to receive the head of the screw 62. The device 10 is mounted on the front of the door, except for the knob 14, the mounting nut 56 and the washer 58 (screw 6).
2 fits into the recess provided in the door, and the shoulder 54
Abuts against a shoulder provided in the aperture) such that the threaded rear end 52 of the housing 12 projects from the rear or inner outer surface 22 of the door 16. Next, a washer 58 is attached, and the mounting nut 56 is fitted to the threaded end 52. Next, the knob 14 is fitted over the threaded end 52 and the nut 56 and secured to the tube end 86 by tightening the mounting screw 88. Thus, the preparation for using the device 10 is completed.

The usage of the device 10 is as follows.
Peep 0, turn knob 14 360 ° (usually 270 ° is enough), look for the perspective line from peep port 90 via each monitoring port 36-42, and the moment you hear or feel the snapping sound Stop rotation. If you don't see anything then, the lights outside the door have gone out, or the monitoring port has been deliberately blocked, probably by an intruder.

Summarizing the above, the present invention provides a peeping monitoring device having a high degree of perspective accuracy along all the perspective lines, and all the perspective lines having the same perspective precision. This peep monitor acts as a fire protection device and has a high degree of reliability and a high degree of resistance to mischief. Manufacturing, use and maintenance are simple and easy. In one preferred embodiment, the device non-visually informs the observer when one perspective has been reached.

While the preferred embodiment of the invention has been illustrated and described in detail, it will be readily apparent to those skilled in the art that modifications and improvements may be made. Accordingly, the spirit and scope of the present invention should be limited only by the claims of the present invention, and not by the foregoing description.

[Brief description of the drawings]

FIG. 1 is a perspective view of a peep monitor according to the present invention;

FIG. 2 is a cross-sectional view taken along line 2-2 of FIG. 1;

FIG. 3 is a cross-sectional view of the cross-sectional view of FIG. 2 taken along a line 3-3 in FIG. 2 at right angles;

FIG. 4 is a front view of FIG. 2;

FIG. 5 is a rear view of FIG. 2;

FIG. 6 is an enlarged perspective view of a front portion of a housing;

FIG. 7 is composed of dividing diagrams a and b, wherein the dividing diagram a is an exploded perspective view showing the mirror assembly and its cam, the dividing diagram b is a front view of the cam,

FIG. 8 is an exploded perspective view showing an inner tube;

FIG. 9 is an exploded perspective view showing a knob and a part of a housing;

FIG. 10 is similar to FIG. 2, but with the knob 18
It is sectional drawing which shows the state after rotating by 0 degree.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 ... Peep monitoring device, 12 ... Housing, 14 ... Knob, 16 ... Door, 30 ... Front part of housing, 32 ...
Rear part of the housing, 34 monitoring port, 36 monitoring port in the axial direction, 38, 40 monitoring port in the lateral direction, 4
2 ... Downward monitoring port, 44 ... Lens, 74 ... U-shaped central aperture, 76 ... Semi-circular groove part, 78 ... Semi-elliptical groove part, 80 ... Inner pipe, 82, 84 ... In front of pipe, Rear part, 90: peep port, 92: eyepiece, 110,
112: split tube, 130: mirror assembly, 132: frame, 134: mirror, 138: hinge pin, 140: cam follower, 180: corrugated washer.

──────────────────────────────────────────────────続 き Continued on the front page (73) Patent holder 599089549 580 Sylvan Avenue, Englewood Cliffs, New Jersey 07631 U.S.A. S. A. (56) References US Pat. No. 4,946,711 (US, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) E06B 7/30

Claims (21)

(57) [Claims] 1. An axially extending hollow housing which is non-rotatably mounted through and through a surface of a wall or door, wherein the housing has not yet protruded outwardly from the surface. And a rear portion extending through the surface and projecting outwardly from a rear surface opposite the wall or door; the front portion having a cam surface and a shaft relative to the housing axis. And (B) a hollow inner tube rotatably extending axially relative to said housing, said inner tube being in front of said tube. Having a portion and a rear portion of the tube, the front portion of the tube being at least partially disposed within the front portion of the housing, and the rear portion of the tube being disengaged from the opposite rear surface. And (C) the opposite side as described above. A rotatable hollow knob mounted outside of the rear face and attached to the rear portion of the tube and rotating therewith, having a peep port located on the same axis as the axial monitoring port; (D) a mirror assembly disposed within and rotating with said inner tube, said mirror assembly being in a first direction transverse to the axis of said inner tube at an acute angle and parallel to the axis of said inner tube; And a mirror that is movable between a second orientation remote from the axis and the mirror assembly having a curved cam follower engaging the cam surface, Turning the knob relative to the housing to rotate the mirror such that when the mirror is in the first orientation, the non-axial direction monitoring through the mirror from the peep port. At different points of view to any one of the ports Are respectively formed, when the mirror is in the second orientation, to as line of sight leading to monitoring port direct the axial direction from the peeping port is formed, ones and; wherein, said housing And the inner tube are above the peep port
Line of sight to any one of the monitoring ports
And a means for performing a snap operation for indicating to the user.
A peeping monitoring device characterized in that: 2. The mirror is rotated by rotating the knob, and the lines of sight from the peep port to one of the non-axial monitoring ports via the mirror are continuously and continuously formed. 2. The device according to claim 1, wherein each device is formed at a different time. 3. Rotation of the knob to a point allows the mirror to be pivoted out of line of sight from the peep port directly to the axial monitoring port. Item 3. The apparatus according to Item 2. 4. The front end of the front part of said tube is generally U-shaped.
Any one of the non-axial monitoring ports through the mirror from the peep port and having one open side surface
The device of claim 1, wherein the line of sight can be up to four. 5. A line of sight from the peep port to the axial monitoring port can be created by pivoting the mirror upward toward the open side of the front portion of the tube. An apparatus according to claim 4. 6. The apparatus according to claim 1, wherein said cam surface forms a 360 ° groove. 7. The apparatus of claim 6, wherein the cam surface defines a 360 ° groove that is approximately 180 ° semi-circular and approximately 180 ° semi-elliptical. 8. The device of claim 7, wherein the semi-elliptical portions of the groove have curved portions that connect to each other via a flat portion. 9. The apparatus of claim 1, wherein said mirror has an opaque reflective surface. 10. The housing and the inner tube form a means for snapping to indicate to the user whenever a line of sight is created between the peep port and the monitoring port. The device of claim 1 . 11. A corrugated washer having at least one corrugated portion is attached to said housing, and said inner tube has a plurality of circumferentially spaced notches which are displaced from said peep port. The apparatus of claim 10 , wherein the apparatus is used to accept the wave portion when a line-of-sight to any one of the monitoring ports is created. 12. The waveform washer is non-rotatably attached to the latter part of the said housing, are provided at a plurality of notches equally spaced arranged with intervals on the circumference, claim 11 The described device. 13. means for the snap action serves to push the cam follower on the cam surface, according to claim 1
The described device. 14. The apparatus of claim 1, further comprising means for pushing said curved cam follower toward said cam surface. 15. The rear part of the housing is made of metal, the rear part of the inner tube is made of metal, and a lens made of Pyrex is inserted in the rear part of the tube. The device of claim 1 wherein the rear portion of the housing, the rear portion of the inner tube, and the lens of Pyrex form a fire barrier in the device. 16. The apparatus of claim 1, wherein a rear portion of each of said housing and said tube is made of metal and a front portion of each of said housing and said tube is made of plastic. 17. The apparatus of claim 1, wherein a wide-angle lens is located at each of said monitoring ports. 18. The apparatus of claim 1, wherein a magnifying lens is disposed within the inner tube on a line of sight between the peep port and the monitoring port. 19. An axially extending hollow housing which penetrates the surface of the door and is non-rotatably mounted thereto, before the housing projects outwardly from the front surface of the door. And a rear portion made of metal and extending through the door and projecting outward from a rear surface opposite the door; having a front surface with a cam surface;
A plurality of monitoring ports arranged in an axial direction and a non-axial direction with respect to the axis of the housing, wherein the cam surface has a semicircular portion at a portion of about 180 ° and a semicircular portion at a portion of about 180 °; (B) a hollow inner tube rotatably extending axially with respect to said housing, said hollow inner tube comprising a front portion of said tube and said tube. A rear portion of the tube, the front portion of the tube being plastic and at least partially disposed within the front portion of the housing, and the rear portion of the tube being metal and opposite (C) a rotatable hollow that extends outwardly from the rear surface of the door and is removably attached to the rear portion of the tube and rotates therewith. With the knob, it is located on the same axis as the above axial monitoring port (D) a mirror assembly disposed within said inner tube and rotating therewith adjacent a front portion of said housing, said mirror assembly forming an acute angle with said inner tube axis; The first direction to cross with
A curved mirror that is movable with respect to a second orientation parallel to and spaced from the axis of the inner tube, wherein the mirror assembly engages the cam surface. A cam follower, through which the knob is rotated relative to the housing to rotate the mirror, and when the mirror is in the first orientation, the mirror is moved from the peep port to the mirror. Perspective lines leading to any one of the non-axial monitoring ports via the are formed at different times, and when the mirror is in the second orientation, the axial monitoring can be performed directly from the peep port. A perspective line leading to the port is formed, and the mirror has an opaque reflective surface and is positioned on the perspective line from the peep port to the lateral and downward monitoring ports, and the longitudinal axis of the inner tube. About 20-40 ° angle to (E) a Pyrex lens placed in the rear end of the rear portion of the tube, the rear portion of the housing, and the rear portion of the tube; And (F) a wide-angle lens disposed at each of the monitoring ports; and (G) a peep in the inner tube. A magnifying lens disposed in line of sight between the viewing port and the monitoring port, wherein the knob is rotated to rotate the mirror, and the sideways view from the peep port through the mirror. And a perspective line leading to any one of the downward-looking monitoring ports is formed at different times, and the knob is rotated to one point to move the mirror directly from the peep port to the monitoring port. Deviated from It can be rotated location, the housing and the inner pipe, the peeping port and upper
Line of sight to any one of the monitoring ports
Not make form the means for a snap operation shown the door to the user
A peep monitoring device for mounting on a door. 20. The snapping means is non-rotatably mounted to a rear portion of the housing, and includes a corrugated washer having at least one corrugated portion, the corrugated washer extending from the peep port to one of the monitoring ports. 20. The apparatus of claim 19 , comprising: a plurality of spaced apart notches on the circumferential surface of the inner tube that are used to receive the wave portions of the corrugated washer when the line of sight is made. 21. The front end of the inner tube is generally U-shaped, has one open side, and forms a perspective line from the peep port to the non-axial monitoring port through the mirror. And the mirror pivots upwardly toward the open side of the U-shaped front end of the inner tube to form a line of sight from the peep port directly to the axial monitoring port. 20. The device of claim 19 , wherein: