JPH05272278A - Peep monitor of door - Google Patents

Abstract

PURPOSE: To view the front, the right and the left sides the under side, and below as occasion demands by a peep monitor installed on a wall or a door. CONSTITUTION: A plurality of surveillance ports disposed axially and non-axially relative to a hollow housing 12 protruding from a door surface. A mirror 134 is moved between a first direction crossing the axis of the housing at an acute angle and a second direction parallel to the axis of the housing and paced away therefrom by a knob 14 stretching externally from the rear of a door and having peep ports in alignment on the axis of the surveillance port in an axial direction. The mirror 134 is moved by rotating the knob based on a housing and when the mirror is situated in the first direction, a see-through line running from the viewing port 90 to some one of the surveillance ports through the mirror is formed at different points of time. When the mirror is directed to the second direction, a see-through line running from the viewing port directly to a surveillance port 36 in an axial direction is formed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a peep monitoring device attached to a door, and more particularly to a device capable of looking straight ahead, right and left, and downward at any time.

[0002]

2. Description of the Related Art Problems related to home security are frequently reported. The biggest problem among them is
Now and in the past, how to easily identify people who have visited a house or residence. People have attached various devices to identify visitors. For a long time, various peepholes have been used to identify visitors. During this time, this traditional peephole has also been progressively improved, using a super-wide-angle fisheye lens to increase the field of view, and disguising as a one-way glass, for example, to hide people in the house.

Generally speaking, multifamily housing, especially urban apartments, presents special problems. For example, improper lighting around a house or irregularly shaped walkways can be a good place to hide a visitor who is trying to hide them.

[0004] Various attempts have been made to improve the apparatus in order to obtain a wide-angle and bright field of view, but there are various problems in the conventional apparatus, for example, it is difficult to see, the reliability is low, the player is liable to mischief, and the spread of fire is promoted. Have one or several problems such as

US Pat. No. 3,973, miyakawa et al.
No. 835 discloses a periscope with a fixed unidirectional or see-through mirror. See 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 amount of effective light that reaches the eyepiece when looking axially.

US Pat. No. 4,050,792 discloses a peep device consisting of one housing and three separate see-through parts providing a paranoma screen. The field of view is inherently limited by the position of each perspective component and cannot be seen at right angles. Furthermore, in the case of separate perspective parts, the perspective lines of the three devices must each be adjusted. Lastly, the structure of this device is easy to spread because the mounting holes in the door act as a chimney that draws in smoke.

Degunan, US Pat. No. 4,964,7
No. 11 discloses a peep device with a swingably mounted mirror having an opaque reflective surface aligned with a plurality of surveillance ports. By rotating the eyepiece, the mirror can be swung to a position in front of the surveillance port to see the radial direction, and further by turning the eyepiece to move the mirror off the axis of the field of view Can be done. However, whether the line of sight seen between the peep port on one side of the door and the surveillance port on the other side of the door is looking directly or through a mirror, observer Often confused by the observer, and when the visible image is difficult to discern (eg, when the aisle illumination is dim), it may not be possible to determine when the perspective is in the intended direction. .. It is possible to provide an indication on the eyepiece to determine when the perspective line is in the intended direction (which perspective line it is), but such an indication of the eyepiece A person who presses his eyes against the surveillance port of the lens cannot see this mark and is useless. Accordingly, one object of the present invention is to provide a peep device capable of providing highly accurate surveillance along any line of sight. Another object is to provide a peep device in which all perspectives 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 the device which is capable of blindly contacting the observer to inform them of any one of the perspective lines. Is. Yet another object is to provide a device characterized by high reliability and resistance to mischief. Another object is to provide a device that is simple, easy to manufacture, use and maintain.

[0009]

The above objects of the present invention are accomplished by the following door or wall mounted peep device. This device is (A) an axially extending hollow housing that is non-rotatably mounted to and through a wall or door surface, prior to said housing projecting outwardly from said surface. And a rear portion extending through the surface and projecting outwardly from a rear surface opposite the wall or door; the front portion being relative to the cam surface and the housing axis. Forming a plurality of monitoring ports arranged axially and non-axially;

(B) A hollow inner tube rotatably extending axially 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 in the front portion, and
A rear portion of the tube projecting outwardly from the opposite rear surface;

(C) A rotatable hollow knob mounted on the rear portion of the tube outside of the opposite rear surface and rotating with it, co-axial with the axial monitoring port. Some have a peep port to be placed;

(D) A mirror assembly disposed in and rotating with the inner tube, the mirror assembly being parallel to a first orientation transverse to the axis of the inner tube at an acute angle. And a second mirror at a position away from the axis, the mirror assembly having a curved cam follower for engaging the cam surface. Via the housing, the knob is rotated relative to the housing to rotate the mirror, and when the mirror is in the first orientation, monitoring the non-axial direction from the peep port through the mirror. A line of sight to any one of the ports is formed at different times, and when the mirror is in the second orientation, a line of sight is formed from the peep port directly to the axial surveillance port. What to do,
Is included.

In a preferred embodiment, rotation of the knob causes rotation of the mirror so that the line of sight from the peep port through the mirror to any one of the sideways and downward surveillance ports. It is formed continuously at different times. One opening where the front end of the tube is generally U-shaped and allows a line of sight from the peep port through the mirror to any one of the non-axial monitoring ports Have sides.
The cam surface defines a 360 ° groove of approximately 180 ° semicircular and approximately 180 ° semielliptical.

The mirror is typically opaque, and when placed in perspective from the peep port to the sideways or downwards monitoring port, about 20-40 relative to the longitudinal axis of the inner tube.
Placed at an angle of °.

In one particularly preferred embodiment, the housing and the inner tube provide a snap action to the user indicating that a perspective line has been established between the peep port and any one of the monitoring ports. Form a means of doing. 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 that provide the monitoring from the peep port. One of the ports
It is used to receive the above-mentioned corrugated portion when a perspective line to one is made. The corrugated washer is non-rotatably attached to a rear portion of the housing, and a plurality of notches provided at 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 Pyrex lens is inside 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 within the device. The housing and the front portion of each of the tubes are plastic. A wide-angle lens is arranged at each of the monitoring ports. A magnifying lens is disposed in the inner tube in a perspective line between the peep port and the surveillance port.

[0016]

1 is a perspective view of a peep monitoring system in accordance with the present invention, generally designated by the reference numeral 10. FIG. This peep 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, this device 10 is for mounting a door 16 (shown by a chain line), and an axially extending housing 12 is mounted on the door 16 so as not to rotate. Especially through the door 16,
An aperture or hole is provided that connects the front or outer surface 20 and rear or inner surface 22 of the door 16. The terms front or outer surface and rear or inner surface of the door are, of course, relative to the person using the peep monitoring device. The housing 12 passes through the front portion 30 of the door 16 that projects outwardly from the front or outer surface 20 of the door 16 and outwardly from the rear or inner surface 22 of the door 16 opposite. And a rear portion 32 that protrudes.

Referring now to FIGS. 2-4 and 6, the front portion 30 of the housing is generally dome shaped, has a flat tip and extends axially along the axis of the housing. A monitoring port 36, a plurality of lateral or lateral monitoring ports 38, 40, and a downward facing monitoring port 42 are formed. A lens 44 is fixed in each surveillance port. Preferably, these lenses are wide-angle lenses with a field of view of approximately 58 °, without the need for ultra-wide-angle lenses.

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

Each lens 44 is attached to each 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 surveillance port 42 is mounted at 35 ° so that the field of view outside the door is maximized and the front or outer surface of the door 16 is minimized. The lens 44 of each surveillance port 34 is positioned to provide an axial, lateral, and downward field of view with respect to the axis of the housing, respectively, to cover any external field of view. It does not have an upward field of view, because it is unlikely that a sudden intruder will hang on anything other than the front portion 30 of the housing, for example on the ceiling of the aisle. Sideways and downward monitoring ports 38, 40, 42 are doors 1
Despite being separated from the front or outer surface 20 of 6,
Wide-angle lens 44 in surveillance port 34 provides a wide field of view such that a sudden intruder near the door cannot be hidden (either on one side or underneath front portion 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 located 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 portion 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 The rear portion 32 does not move backwards with respect to the door 16.

To prevent 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.
A washer 58 is preferably placed between this nut 56 and the interior or interior surface 22 of the door. The mounting nut 56 and the shoulder 54 fix 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 attached to the door 16 with only a slight scratch. I can.

A washer-shaped annular connecting member 60, which is a functional and structural part of the housing 12, has front and rear parts 3.
0 and 32 are connected. The central portion of this connecting member 60 is placed behind the flange 50 of the rear portion 32 of the housing and restrains its rearward movement relative to the front portion 30 of the housing. The outer part of the connecting member 60 is fixed to the front part 30 of the housing by means of three screws 62, whose heads project rearwardly from the connecting member 60.

The exposed and rearwardly projecting head 62 of the screw 62 merely abuts 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 forward. To prevent it from rotating with respect to one another, or a recess (not shown) is provided on the front or outer surface of the door 16 to receive the heads of the three screws 62, and the screw heads and the recesses. The fit between and allows the front portion 30 of the housing to remain stationary with respect to the door 16. In either case, the screw 62 allows the housing 12 to be mounted on the door 16 so as not to rotate. If desired, the head of the screw 62 may be filled in the countersink of the connecting member 60 so that it is flush and a projection (not shown) protruding rearward is provided on the connecting member 60 or the front part 30 of the housing ( Housing 12 instead of head)
Can be fixed to the door 16 so as not to rotate.

A cam, generally designated by the reference numeral 70, is non-rotatably mounted inside the front portion 30 of the housing. This is structurally better separated, but functionally part of this part. Bevels or contours are provided on the inner and / or outer edges of the cam 70 to allow non-rotatable placement relative to the rest of the front portion 30 of the housing. The cam 70 can be an integral part of the front portion 30 of the housing, if the material of the front portion 30 of the housing is suitable and the method of assembly thereof permits. Figure 7
If the cam 70 is not an integral part of the front portion 30 of the housing, as shown in FIG. 3, the outer periphery of the cam is sized and dimensioned to prevent rotation of the cam 70 relative to the front portion 30 of the housing. .. Alternatively or additionally, the inner circumference of the cam 70 may for the same purpose form an anti-rotation surface that abuts a part of the inner surface of the front portion 30 of the housing. See, for example, slot 73 on the inner peripheral surface that receives a protrusion (not shown) on front portion 30 of the housing. For reasons described below, the cam 70 has a cam surface in the form of a 360 ° groove 72 extending around a U-shaped central aperture 74. This groove 72 is formed in two separate parts, namely a semicircular groove part 76 extending 180 ° along the lower part of the aperture and a semicircular or semi-elliptical part extending 180 ° along the upper part. Shaped groove portion 78. The semi-circular groove portion 76 is provided only on the back surface of the cam 70, whereas the semi-elliptical groove portion 78 is 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, a U-shaped hollow inner tube 80 extending in the axial direction is rotatable with respect to the housing 12 and is coaxial with the longitudinal axis of the housing 12. It is provided in. This tube 80
A tube front portion 82 disposed at least partially within the housing front portion 30 and a tube rear portion 84 extending at least partially outward from the rear or inner surface 22 of the door 16. And the two tube sections extend axially through the rear section 32 of the housing and thus through the door 16. After the rear portion 84 of the tube projects further from the rear end of the rear portion 32 of the housing and after mounting the housing 12 on 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 this is fixed non-rotatably. The front part 82 of the tube and the rear part 84 of the tube are fixed to each other at the neck 114 and the housing 1
It is possible to rotate as one unit for two.

The rotary knob 14 has an axial monitoring port 36.
It has a peep port 90 coaxially arranged with. An eyepiece lens 92 is sandwiched between a pair of washers 94 and placed in the knob 14, and an assembly of the eyepiece lens 92 and a pair of washers 94 serves as an eyepiece lens assembly, and the rigid body insertion part 96 and the pipe It is held in place within knob 14 by the rear end 86 of portion 84. In particular, knob 1
This rigid insert 9 made of steel to strengthen 4
6 prevents radial or rearward movement of the eyepiece assembly, while the rear end 86 of the inner tube prevents forward movement.
This eyepiece lens 92 does not have a degree, but it has a magnifying lens assembly in front of it, which has a magnifying lens 100 on the front side and a degree made of Pyrex or other heat resistant material. Not the intermediate lens 102
And a washer 104 on the rear side. The 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. This magnifying lens assembly is arranged along the length of the rear portion 84 of the tube,
It is held in place by abutting the split tubes 110 and 112 inside. Abutting the split tube 112 behind the magnifying lens assembly against the washer 94 helps to hold the eyepiece lens assembly in place. The front end of the split tube 110 is restricted from moving forward by the portion of the neck 114 that has a reduced diameter at the front end of the 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 the hole of the door 16 along the Pyrex lens 102. Try to make up the Fire Barrier. These components combine to prevent the chimney effect where flames are drawn through the holes in the door 16 and into the room behind the door. Therefore, unless otherwise required under other conditions, other portions of the housing 12 (for example, the front portion 30 of the housing, the connecting member 60, etc.), the inner pipe 8
0 (eg, the front portion 82 of the tube) and the other parts (eg, knob 14) need not be particularly fire resistant, eg, ABS plastic (acrylonitrile butadiene styrene resin), but are preferably inexpensively molded. It is better that it is easy (for example, injection molding), has rigidity, and has high strength. By doing so, the peep monitoring device 10 of the present invention is made substantially more continuous as it is a continuous wall of metal, making it more difficult to tamper with, and other parts of the device, such as the front part 30 of the plastic housing and the plastic. The front part 82) of the tube is destroyed by an intruder,
The Pyrex protects the holes in the door 16 in the event of a fire.

The front portion 82 of the tube is generally U-shaped for reasons that will be explained later. As shown in FIG. 7, a bearing 120 is located 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 as its front end structurally and functionally. The rear end of the front portion 82 of the tube is secured to the neck 114 at the front end of the rear portion 84 of the tube for rotation as a unit.

In particular, as shown in FIGS. 2, 3, 7 and 10,
A mirror assembly, generally indicated at 130, is a front portion 82 of the tube.
It is arranged as if it were rotating as a unit. The mirror assembly 130 includes a flat, typically rectangular mirror 134 (having an opaque reflective surface) and a frame 132 having a central aperture 136.
Is supported on this frame and operates as one unit. Although a general glass mirror requires the frame 132, it goes without saying that the mirror 134 that has sufficient strength and can be formed into the frame 132 can be used by replacing it with the mirror assembly 130. I can.

At one end of the frame 132 there is a pair of outwardly projecting hinge pins, and preferably a cam follower 140 intermediate the hinge pins 138. The hinge pin 138 is formed on the front surface of the bearing 120 by the fitting recess 1
It is sized and rotatably fitted in 42, and the mirror assembly 130 and the bearer ring 120 are engaged as if they rotate as a unit. This fitting recess 14
2, the mirror assembly 130 further has its hinge pin 13
It is possible to rotate around 8. This mirror assembly 130
It has such a geometry that it can be accommodated in the front portion 82 of the U-shaped tube such that the mirror faces the open surface of this portion. By rotating the inner tube 80, the mirror assembly 1
30 and the bearing 120 can be rotated.

The cam follower 140 is preferably in the form of a curved protrusion, ie a curved flat pin, and the cam 7 is
It is dimensioned to engage in a zero groove 72. Knob 1
4 rotation is transmitted to the mirror assembly 130 via the mounting screw 88, the inner tube 80, and the curved cam follower 1.
40 moves along the longitudinal direction of the semicircular groove portion 76,
The reflective surface of the mirror 134 (preferably 20 to the axis of the tube).
40 degree acute angle), first one lateral monitoring port 3
8, 40, then the downward facing monitoring port 42, and finally the other one of the lateral monitoring ports 40, 38 is brought into a functionally collocated position. When the knob 14 is further rotated, the mirror assembly 130 is further rotated and the cam follower 140 is rotated.
Moves in the semi-elliptical groove portion 78 of the cam groove 72. This semi-elliptical groove portion 78 with respect to the position of the hinge pin 138.
The curved surface of the mirror acts on the cam follower 140, and the mirror assembly 130
Is pivoted up about the hinge pin 138 to create an axis parallel to and away from the axis of the tube so that axial monitoring of the peep port 90 of the knob 14 and the front portion 30 of the housing. A direct view to the port 36 is possible. Similarly, when the cam follower 140 leaves the semi-elliptical groove portion 78 and returns to the semi-circular groove portion 76, the groove 72 exerts pressure on the cam follower 140,
The mirror assembly 130 returns to its initial 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, 78.

The semi-elliptical groove portion 78 has a large radius and a small radius that form three curved portions sandwiching the two flat portions 72A and 72B, respectively. The resulting shape creates a semi-elliptical groove with apex 72C. These flat portions allow the curved cam follower 140 to smoothly pass through the semi-elliptical groove portion 78,
Does not support the groove. The curved cam follower 140 is curved as shown in FIG. 3 to prevent it from slipping out of the grooves 78,76 when the mirror assembly rotates.

Therefore, the mirror 134 has a first orientation (solid line in FIGS. 2 and 3 and broken line in FIG. 2) that intersects the axis of the inner tube at an acute angle.
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 rotated (always) and rotated (only at certain times). In particular, when the mirror 134 is facing the first direction,
The line of sight is formed through the mirror at different times from the peep port 90 through each of the sideways and downward facing surveillance ports 38, 40, 42, and when the mirror is in the second orientation, the line of sight is , A line directly connecting the peep port 90 and the axial monitoring port 36. At this time, the mirror assembly 130 is oriented in the second orientation, completely into the open side of the front portion 82 of the U-shaped tube, away from the axis of the tube,
Located above and substantially parallel to it.

The initial orientation of the knob 14 (and thus of the mirror assembly 130) and the subsequent direction of rotation causes movement of the mirror (viewing axially directly from the axial monitoring port 36) in a second orientation. Occurs shortly after looking through either of the lateral monitoring ports 38, 40. Furthermore, if desired, a separate cam groove can be used to change the order of peeping through rotation of knob 14.

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

When the mirror assembly 130, and in particular its curved cam follower 140, moves in the groove 78 and approaches a direction parallel to the axis of the tube (ie, the second orientation of FIG. 10), the cam follower is driven. Hinge pin 13 where part 140 is a constant distance from cam 70
It rotates around 8 and further enters into the groove 72. Since the cam follower 140 penetrates the full depth of the groove portion 76, the groove portion 78 must be made deeper or, as shown, 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,
It only really needs a part that functions as a cam surface.

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 to forcibly rotate the assembly and the bearing 120. However, in this way, the frame 132 is easily worn by repeated use. Thus, in the case of the present invention, as shown in FIGS. 7 and 8, a pair of diametrically opposed projections 160 at the front end of the front portion 82 of the tube.
And a pair of diametrically facing recesses 162 for receiving the protrusion 160 are formed in the bearing 120, and the rotation of the knob 14 is directly transmitted to the bearing 120 via the tube 80, and the bearing 120 is rotated to rotate the hinge pin 1.
The engagement of 38 with the recess 142 causes the mirror assembly 130 to rotate. As a result, even after repeated use,
There is no tendency for the mirror to move out of the desired center position, which increases the stability of the mirror (immediately reduces mirror shuddering).

As shown in FIG. 5, the rear surface 170 of the knob 14 is shown.
By providing an indicator, in this case an arrow, and adjusting the knob to this position, it is possible to view the axial direction directly from the peep port 90 via the axial monitoring port 36. (For example, use the display "forward" with arrow 172.) However, as noted above, such a display is of little use when the observer is looking into the peeping port 90. This display, especially arrow 17
2 can be extended, and / or the sides of the knob can be flattened so that the person using the device can sense this tactilely, but the knob is still rotated to the proper position. In some cases, it may be difficult to confirm which monitoring port 36 to 42 is being used.

Thus, as shown next in FIGS. 2, 3, 8 and 10, in the preferred embodiment of the present invention, the knob 14 is rotated to rotate the mirror assembly 130, ie (either directly or Means are provided to non-visually indicate when the line of sight (via 134) is completed between the peep port 90 and one of the monitoring ports 36-42. This means includes 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 corrugated washer 180 is fixed to the rear part 32 of the housing by a pin 190 at only one position.
When 92 is pushed by the notched portion of the rear portion 184 of the tube, it allows the rest of the washer 180 to extend slightly outwardly.

As shown, the corrugated washer 180 has a corrugated portion 192 extending across its annulus, while the rear surface 184 of the tube has a pair of notches extending perpendicularly to each other on its circumferential surface. I have 182. Of course, instead of this, the corrugated washer 180 is provided with a pair of corrugations 192 arranged at right angles to each other and the rear surface 184 of the tube
Other arrangements are possible, including arrangements where only form a single corrugation 182. 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 properly oriented and the peep port 90 and the monitoring ports 36-42 are shown. When a see-through line is formed between the corrugated portion 192 and the notch portion 182 (whether through a mirror or directly), the corrugated portion 192 and the notch portion 182 are engaged with each other, and when the corrugated portion 192 is fitted to the corrugated washer 180, it can be heard. A clicking sound and / or a tactile sensation is generated, and the completion of the perspective line can be easily detected.

Yet another function of this corrugated washer 180 is to constantly apply a forward pressure on the inner tube 80 and the bearing 120 to push 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 attach the device 10 to the door 16, an aperture of suitable geometry to receive the rear portion 32 of the housing is drilled in the door, preferably a shoulder for receiving the 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. This device 10 is mounted to it from the front of the door, except for the knob 14, mounting nut 56 and washer 58 (screw 6).
The second head fits in the recess provided in the door, and the shoulder 54
Abut the shoulder provided in the aperture) so that the threaded rear end 52 of the housing 12 projects from the rear or inner outer surface 22 of the door 16. The washer 58 is then attached and the mounting nut 56 is fitted to the threaded end 52. The knob 14 is then fitted over the threaded end 52 and nut 56 and secured to the tube end 86 by tightening the mounting screw 88. This completes the preparation for using the device 10.

How to use this device 10 is the peep port 9
Peek at 0, turn knob 14 360 ° (usually 270 ° is enough), look for the perspective line from peep port 90 through each monitoring port 36-42, and the moment you hear or feel the snap sound Stop rotating. If you couldn't see anything then, the lights outside the door were off, or the surveillance port was intentionally blocked, probably by an intruder.

In summary, the present invention provides a peep monitoring device that has a high degree of perspective accuracy along all perspective lines and that all perspective lines have the same perspective accuracy. This peep monitoring device functions as a fire protection device and has a high degree of reliability and a high degree of resistance to mischief. Manufacture, use and maintenance are simple and easy. In one preferred embodiment, the device non-visually informs the observer when one perspective is reached.

While the preferred embodiment of the invention has been shown and described in detail, modifications and improvements thereof will be straightforward to those skilled in the art. Therefore, the spirit and scope of the present invention should be limited only by the claims of the present invention, and not by the description of the above specification.

[Brief description of drawings]

1 is a perspective view of a peep monitoring device according to the present invention, FIG.

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

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

FIG. 4 is a front view of FIG.

FIG. 5 is a rear view of FIG.

FIG. 6 is an enlarged perspective view of the front portion of the housing,

FIG. 7 consists of drawings a and b, where drawing a is an exploded perspective view of the mirror assembly and its cam, and drawing b is a front view of this cam.

FIG. 8 is a perspective view showing the inner tube in an exploded manner;

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

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

[Explanation of symbols]

10 ... Peep monitoring device, 12 ... Housing, 14 ... Knob, 16 ... Door, 30 ... Front part of housing, 32 ...
Rear part of housing, 34 ... Monitoring port, 36 ... Axial monitoring port, 38, 40 ... Lateral monitoring port, 4
2 ... Downward monitoring port, 44 ... Lens, 74 ... U-shaped central aperture, 76 ... Semi-circular groove part, 78 ... Semi-elliptical groove part, 80 ... Inner tube, 82, 84 ... In front of tube, 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 ... Wave washer.

Claims (23)

[Claims] 1. A hollow, axially extending housing penetrating through and non-rotatably attached to a wall or door surface prior to said housing projecting outwardly from said surface. A portion and a rear portion extending through the surface and projecting outwardly from a rear surface opposite the wall or door; the front portion being relative to the cam surface and the shaft of the housing. Forming a plurality of monitoring ports arranged axially and non-axially; and (B) a hollow inner tube rotatably extending axially relative to the housing, which is in front of the tube. 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 external from the opposite rear surface. The one protruding in the direction; (C) the opposite side A rotatable hollow knob mounted on the rear portion of the tube and rotating with the rear portion of the tube, having a peep port located on the same axis as the axial monitoring port, (D) A mirror assembly disposed in and rotating with the inner tube, the mirror assembly being parallel to the axis of the inner tube in a first orientation transverse to the axis of the inner tube at an acute angle. And a second mirror at a position away from the axis, the mirror assembly having a curved cam follower for engaging the cam surface. Via the housing, the knob is rotated relative to the housing to rotate the mirror, and when the mirror is in the first orientation, monitoring the non-axial direction from the peep port through the mirror. At different times when the line of sight to any one of the ports is different Peep surveillance, each formed such that a perspective line is formed from the peep port directly to the axial surveillance port when the mirror is in the second orientation. apparatus. 2. The knob is rotated to rotate the mirror so that a line of sight from the peeping port through the mirror to any one of the non-axial monitoring ports is continuously and sequentially obtained. The device according to claim 1, wherein the device is formed at different times. 3. Rotating the knob to a point allows the mirror to be rotated to a position off the line of sight from the peep port directly to the axial surveillance port. Item 2. The device according to item 2. 4. The front end of the front portion of the tube is generally U
One of the non-axial monitoring ports from the peep port through the mirror and having one open side,
The device according to claim 1, which allows a perspective line up to one. 5. A perspective line can be created from the peep port directly to the axial monitoring port by pivoting the mirror upwards toward the open side of the front portion of the tube. The device according to claim 4. 6. The apparatus of claim 1, wherein the cam surface defines a 360 ° groove. 7. The apparatus of claim 6 wherein said cam surface defines a 360 ° groove about 180 ° semi-circular and about 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 the mirror has an opaque reflective surface. 10. The housing and the inner tube form a snap action means to indicate to a user that a perspective line between the peep port and one of the monitor ports has been created. The device of claim 1, wherein 11. The housing and the inner tube form means for snapping the user through each time a perspective line is created between the peep port and the monitor port. The device according to claim 10. 12. 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 that extend from the peep port. 12. The device of claim 11, wherein the device is used to receive the corrugated portion when a line of sight to any one of the monitoring ports is made. 13. The corrugated washer is non-rotatably attached to a rear portion of the housing, and a plurality of cutouts provided at intervals on the circumference are provided at equal intervals. The described device. 14. The means for performing the snap action serves to push the cam follower into the cam surface.
0 device. 15. The apparatus of claim 1 further including means for pushing the curved cam follower toward the cam surface. 16. A rear portion of the housing is made of metal, a rear portion of the inner tube is made of metal, and a Pyrex lens is in the rear portion of the tube. The apparatus of claim 1, wherein the apparatus is disposed such that the rear portion of the housing, the rear portion of the inner tube, and the lens of Pyrex form a fire barrier within the apparatus. 17. The apparatus of claim 1, wherein the rear portion of each of the housing and the tube is made of metal and the front portion of each of the housing and the tube is made of plastic. 18. The apparatus according to claim 1, wherein a wide-angle lens is disposed at each of the monitoring ports. 19. The apparatus of claim 1, wherein a magnifying lens is located in the inner tube in a perspective line between the peep port and the surveillance port. 20. (A) A hollow axially extending housing that extends through the surface of a door and is non-rotatably attached thereto, the portion before the housing protruding outward from the front surface of the door. And a rear portion made of metal that extends through the door and projects outwardly from a rear surface opposite the door; the front portion having a cam surface and an axis relative to the housing. And a plurality of monitoring ports arranged axially and non-axially are formed, and the cam surface is formed by a semi-circular portion at about 180 ° and a semi-elliptical portion at about 180 °. (B) a hollow inner tube rotatably extending axially with respect to the housing, the front section of the tube and the rear section of the tube being formed. The front of the tube is made of plastic and the housing (C) the door being at least partially disposed in the front portion and the rear portion of the tube being metallic and projecting outwardly from the rear surface of the opposite door; A rotatable, rotatable knob that extends outwardly from the rear surface and is removably attached to the rear portion of the tube and rotates with it to provide a viewing port that is co-axial with the axial monitoring port. (D) A mirror assembly disposed within the inner tube and rotating therewith adjacent to a front portion of the housing, the first mirror assembly having a sharp angle across the axis of the inner tube. Orientation and
A curve including one mirror movable relative to a second orientation parallel to and away from the axis of the inner tube, the mirror assembly engaging the cam surface; A cam follower is formed through which the knob is rotated with respect to the housing to rotate the mirror, and when the mirror is in the first orientation, the mirror is viewed from the peep port. A perspective line to any one of the non-axial monitoring ports is formed at different time points through the, and when the mirror is in the second orientation, the axial monitoring is directly from the peep port. A longitudinal axis of the inner tube is formed when a perspective line 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 surveillance ports. About 20-40 ° angle (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 the Pyrex lens to form a fire barrier in the device; (F) a wide angle lens respectively disposed in the surveillance port; (G) the peep in the inner tube. A magnifying lens disposed on a perspective line between the viewing port and the surveillance port, wherein the knob is rotated to rotate the mirror and the sideways direction from the peep port through the mirror. And forming a perspective line to any one of the downward and downward monitoring ports at different points of time, and rotating the knob to a certain point so that the mirror can be seen directly from the observation port to the monitoring port. Out of place A peep monitoring device for door installation that can be rotated to a stationary position. 21. The housing and the inner tube include means for snapping to indicate to a user that a perspective line has been created between the peep port and one of the monitoring ports, the snapping action. Means for non-rotatably attached to the rear portion of the housing to provide a corrugated washer having at least one corrugated portion and a perspective line from the peep port to one of the monitoring ports. 21. The apparatus of claim 20 including a plurality of spaced notches in the circumferential surface of the inner tube used to receive the corrugated portion of the corrugated washer. 22. The front end of the inner tube is generally U-shaped, has one open side, and forms a perspective line from the peeping port through the mirror to the non-axial monitoring port. And the mirror pivots upward toward the open side of the U-shaped front end of the inner tube to form a perspective line from the peep port directly to the axial monitoring port. 21. The device according to claim 20, which enables 23. The semi-elliptical groove has a large radius and a small radius forming three curved portions,
21. The device of claim 20, wherein the two curved portions are connected to each other with the two flat portions in between.