JP2008169596A - Security sensor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a security sensor which enhances safety by applying double coming-off prevention for preventing a sensor coping from coming off from a spandrel wall etc. of a balcony, in case of the disengagement of such a normal locking means for the sensor coping that a locking pawl and a locking groove are forcedly fitted together, as a coming-off means for the sensor coping. <P>SOLUTION: In this security sensor, the sensor coping 5 for covering a pressure sensor 8 of a top portion of the spandrel wall 1 etc. of the balcony is provided. When the sensor coping 5 is pushed down by a load, the security sensor makes the sensor coping 5 push the pressure sensor 8. The plurality of sensor copings 5 are provided in series; a connecting cover 20A for connecting ends of the adjacent sensor copings 5 (A and B) together is provided; and a stopper 23, which can abut on a lower portion of the top portion of the spandrel wall 1 etc. of the balcony, is provided for the connecting cover 20A. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a security sensor provided at the top of a balcony, a fence, a fence, or the like of a balcony.

  2. Description of the Related Art Conventionally, a crime prevention sensor is known that prevents a suspicious person from entering over the top of a balcony's waist wall or the like. These are mainly those that detect the intrusion of suspicious people using infrared sensors, ultrasonic sensors, capacitance detection sensors, magnetic sensors, or those that are monitored by an imaging monitoring monitor such as a camera. Yes (see, for example, Patent Documents 1 and 2).

  In such a security sensor, even if a small animal such as a cat or a bird invades, it is detected in the same manner as when a suspicious person has invaded, and a suspicious person has intruded even though the suspicious person has not invaded. In many cases, erroneous detection is performed, and if an attempt is made to increase detection accuracy, the structure becomes complicated, the number of parts increases, and the cost increases. In addition, when a camera or the like is provided, there is no sense of unity due to poor fit on the balconies of the balcony and the appearance is impaired.

  Therefore, the present applicant has provided a sensor head cover that covers the pressure sensor provided on the top of the waist wall of the balcony, and depending on the load (weight) of the suspicious person who tries to get over the sensor head cover by hand, We first proposed a security sensor that would press the pressure sensor when the sensor headboard was pushed down.

According to this, as in the case of using an infrared sensor or the like as a security sensor, it is possible to prevent the intrusion of a light small animal such as a cat or a bird as an intrusion of a suspicious person, and the structure is simplified. The number of parts is reduced and the cost is reduced, and the fit with the handrail provided on the top portion of the balconies of the balcony is improved, and there is a sense of unity and the appearance is improved.
JP 2001-153964 A JP 2002-15380 A

  However, in the crime prevention sensor according to the proposal of the present applicant, there has been a demand to be improved with respect to the means for preventing the sensor headstock from falling off.

  The present invention has been made to meet the above-mentioned demands. Even if the normal locking means of the sensor headboard such as the forced fitting of the locking claw and the locking groove is removed as the sensor headboard dropping means, An object of the present invention is to provide a security sensor that further improves safety by preventing double drop-off so that the sensor headwood does not fall off from the waist wall of the balcony.

  In order to solve the above-mentioned problems, the present invention is provided with a sensor head cover that covers a pressure sensor on the top of a balcony wall, fence, fence, etc., and when the sensor head pad is pushed down by a load, the pressure sensor is A security sensor adapted to be pressed, wherein a plurality of the sensor caps are provided in series, and a connecting cover for connecting the ends of adjacent sensor caps is provided. The present invention provides a security sensor characterized in that a stopper capable of coming into contact with a lower portion of a top portion such as a waist wall is provided.

  A handrail is attached to the top of the balcony such as the waist wall of the balcony, the pressure sensor on the upper portion of the handrail is covered with a sensor headboard, and the stopper extends in the orthogonal direction below the handrail. The both ends of the stopper are locked to both lower ends of the connection cover.

  According to a third aspect of the present invention, it is preferable that both end portions of the stopper are inserted and locked to both lower end portions of the connecting cover from the longitudinal direction of the connecting cover.

  According to a fourth aspect of the present invention, it is preferable that the stopper is provided with an oblique fixing screw, and the fixing screw is abutted against the lower end of the sensor headboard when screwed.

  According to a fifth aspect of the present invention, the inner surface of the connection cover is preferably provided with a packing that contacts the upper surface of the sensor headboard.

  According to the present invention, the connecting cover that connects the ends of the adjacent sensor headboards is provided with the stopper that can come into contact with the lower part of the top portion of the balcony wall, etc. Even if the usual means of locking the sensor headboard such as forcibly fitting is removed, the stopper of the connecting cover comes into contact with the lower part of the top part of the balcony's waist wall, etc. Therefore, safety is improved by preventing double dropout. Further, since the stopper can be provided by using the connection cover, the cost is reduced and the workability is improved.

  According to the second aspect, in the type in which the handrail is attached to the top portion of the balconies or the like of the balcony, the stopper is arranged so as to be able to contact the lower portion of the handrail by traversing the lower portion of the handrail in the orthogonal direction. Since both ends of the stopper can be locked to both lower ends of the connecting cover, the stopper can be rationally arranged.

  According to the third aspect, since the stopper can be engaged with both lower ends of the connecting cover by inserting the stopper from the longitudinal direction of the connecting cover, the assembling property is improved.

  According to the fourth aspect of the present invention, the stopper can be securely fixed to the connecting cover by screwing the stopper fixing screw and abutting the lower end of the sensor headboard, so that the stopper can be prevented from being displaced due to vibration or the like. Since the fixing screw is inclined, screwing workability by a screwdriver or the like is improved.

  According to the fifth aspect, since the packing is provided between the connection cover and the sensor headboard, it is possible to prevent the connection cover from being displaced in the longitudinal direction due to the elasticity of the packing, and water or dust can be removed from the gap between the ends of the sensor headboard. Intrusion into the sensor headboard can be prevented.

  Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings.

  1 is a perspective view of the main part of the balcony, FIG. 2 is an enlarged cross-sectional view of the main part of FIG. 1, and a handrail 2 along the waist wall 1 is provided on the top part (upper end part) of the waist wall 1, The handrail 2 is supported in a substantially horizontal state by a plurality of pillars 3 standing on the top portion of the waist wall 1. The handrail 2 is made of aluminum, for example, and is formed in a substantially horizontally long elliptical cross-sectional shape. The handrail 2 may be an existing one attached at the time of construction of a house.

  The handrail 2 is covered with a sensor headboard 5 from above. The sensor headboard 5 is an extruded die made of, for example, aluminum, and has a substantially inverted U-shaped cross-sectional shape.

  As shown in FIGS. 3A and 3B, a base material 6 extending in the longitudinal direction with a slightly wider width than the handrail 2 is disposed on the upper portion of the handrail 2. The central lower surface portion of the direction is directed to the upper surface of the handrail 2 and is fixed to the handrail 2 with screws or the like. The base material 6 is, for example, an extrusion mold material made of aluminum.

  A concave portion 6a extending in the longitudinal direction is formed on the central upper surface portion of the base material 6 in the width direction, and flat portions 6b extending in the longitudinal direction are formed on both sides thereof. A lower part of a sensor holder 7 made of a soft synthetic resin such as rubber or elastomer is fitted in the recess 6 a along the longitudinal direction of the base material 6, and both sides of the recess 6 a are inserted into the recesses 7 a on both sides of the sensor holder 7. By engaging the hook 6d, the sensor holder 7 is fixed to the recess 6a.

  A concave portion 7b for holding the cable-shaped pressure sensor 8 from above when the cable-shaped pressure sensor 8 is fitted from above is formed on the upper part of the sensor holder 7. The pressure sensor 8 is arranged in the longitudinal direction of the base material 6. The sensor holder 7 is fitted in a series.

  In the pressure sensor 8, when a pressing force (load) is applied to the surface, the portion is distorted, so that a voltage proportional to the pressing force (load) is induced.

  The sensor pressing member 9 that presses the pressure sensor 8 held by the sensor holder 7 is formed of an elastic body such as rubber or elastomer, and has a pressure as shown in detail in FIGS. A pressing base portion 9a facing the sensor 8 from above, a fixing portion 9b fixed to the flat portion 6b of the base material 6 with a screw 18, and a flexible connecting portion 9c connecting the fixing portion 9b and the pressing base portion 9a. A pair of semi-circular pressing protrusions 9d extending in a direction orthogonal to the pressure sensor 8 are formed on the pressing surface of the pressing base 9a in the longitudinal direction of the pressure sensor 8.

  As shown in FIG. 4 (d), the sensor pressing member 9 can retract the pressing base 9a from above the sensor holder 7 when the pressing base 9a is lifted with a finger while bending the connecting portion 9c. In this state, when the pressure sensor 8 is fitted into the sensor holder 7 and then the finger is released from the pressing base 9a, the pressing base 9a automatically returns to above the pressure sensor 8 by the elasticity of the connecting portion 9c. To come.

  Since the elasticity of the connecting portion 9c is set such that the pressing base portion 9a automatically returns above the pressure sensor 8, even if the pressing protrusion 9d contacts the pressure sensor 8, the portion is distorted and voltage is induced. There is no fear.

  A leaf spring material 11 extending in the longitudinal direction of the sensor headboard 5 is attached to the flat portions 6 b on both sides of the base material 6 at a predetermined interval in the longitudinal direction of the base material 6. The leaf spring material 11 may be attached to the flat portions 6b on both sides in a pair of left and right, but in a zigzag manner alternately on the left and right, corresponding to the attachment position of the sensor pressing material 9, that is, with respect to the pressure sensor 8. It may be offset and attached to either side. The leaf spring material 11 has screw holes formed in flat both end portions 11a, and screws 17 [FIG. 4 (FIG. 4 ( (See a)].

  In addition, a convex portion 11c that contacts the lower surface of the sensor headboard 5 is formed in the middle portion in the longitudinal direction, and concave portions 11d are formed on both sides of the convex portion 11c, respectively. Only the upper surface (mounting surface) of the base material 6 of the leaf spring material 11 is floated upward.

  The urging force of the leaf spring material 11 allows the sensor headboard 5 to be lifted upward. When the sensor headboard 5 is pushed down by the load against the lifting force (biasing force) of the leaf spring material 11, The pressing base 9a of the sensor pressing member 9 is displaced downward to press the pressure sensor 8.

  On both ends of the base material 6, downward locking claws 6 d are formed, and on both sides of the inner surface of the sensor cap 5, the locking cap 6 d of the base material 6 is forcibly fitted from above and the sensor cap 5 A locking groove 5a is formed to allow a downward stroke. Thereby, the sensor headboard 5 is attached to the base material 6 so as to be able to be pushed down and lifted.

  As shown in FIG. 1, a detection circuit block 13 to which the end of the pressure sensor 8 is connected is attached to the base material 6 positioned at the end of the waist wall 1, and the inner surface of the waist wall 1 in the vicinity thereof is attached to the base material 6. The notification unit box 14 to which the commercial power supply AC is connected is attached, and the signal line 15 of the detection circuit block 13 is connected to the notification unit box 14.

  When the sensor headboard 5 is pushed down against the lifting force (biasing force) of the leaf spring material 11 by a load (weight) of a suspicious person who tries to get over the sensor headboard 5 with a hand or the like, When the pressure sensor 8 is pressed by the pressing member 9, a voltage proportional to the pressing force (load) is induced in the pressure sensor 8, and this induced voltage is detected by the detection circuit block 13, for example, 20 kg or more. If it is a load (weight), it is determined that a suspicious person has entered, and an alarm sound or the like is notified from the notification unit box 14.

  Further, even if a light small animal such as a cat or a bird gets on the sensor headboard 5 and the sensor headboard 5 is pushed down against the lifting force (biasing force) of the leaf spring material 11, the induced voltage of the pressure sensor 8 is increased. If it is detected by the detection circuit block 13 and, for example, a load (weight) of several tens of grams to several kilograms, it is determined that a suspicious person has not entered, and an alarm sound or the like is not notified from the notification unit box 14.

  In this way, it is possible to prevent the intrusion of lightweight small animals such as cats and birds from being mistakenly detected by suspicious persons, as in the case of using an infrared sensor or the like as a security sensor, and the structure is simplified and the parts The number of points is reduced and the cost is reduced, and the fit with the handrail 2 provided on the top portion of the lumbar wall 1 or the like of the balcony is improved, and there is a sense of unity, and the appearance is improved.

  In the above configuration, the sensor head 5 is attached so that it does not fall off the base material 6 by forcibly fitting the locking groove 5a of the sensor head 5 to the locking claw 6d of the base material 6 from above. In the usual locking means (first drop prevention means) of the sensor headboard 5 such as forcibly fitting the locking pawl 6d and the locking groove 5a, deterioration of the locking claw 6d and the locking groove 5a over time, vibration, etc. Thus, it is desired to prevent double dropout by the second dropout prevention means so that the sensor headboard 5 does not fall off even if the lock is released.

  Therefore, as shown in FIG. 5, when a plurality of sensor caps 5 (A to C) are provided in series, a connecting cover 20 </ b> A that connects ends of adjacent sensor caps 5 (A to C). , 20B. The connecting cover 20A is a so-called linear joint, and the connecting cover 20B is a so-called corner joint. An end cap 21 is put on the open end of the sensor headboard 5 (A, C).

  As shown in detail in FIGS. 6 (a) and 6 (b), the connecting cover 20A is covered from above over the end portions of the sensor cap 5 (A) and the sensor cap 5 (B). The connecting cover 20A is an extruded die made of aluminum, for example, and has a substantially inverted U-shaped cross-sectional shape.

  At both lower ends of the connecting cover 20A, groove portions 20a folded in an inward U-shape are formed, and inward protrusions 20b are formed in the respective groove portions 20a.

  Referring to FIG. 7A, a horizontally long rectangular metal plate stopper 23 is provided. The stopper 23 crosses the lower side of the handrail 2 in the orthogonal direction and can contact the lower portion of the handrail 2. Has been placed. At both ends of the stopper 23, bent portions 23 a that are fitted into the groove portions 20 a of the connecting cover 20 A and locked are formed. As shown in FIG. 6B, the bent portion 23a is in contact with the protrusion 20b in the groove portion 20a, so that friction is applied so as not to be inadvertently removed from the groove portion 20a.

  The upper surface of the stopper 23 is set so as to come into contact with both lower end portions 5b of the sensor headboard 5 (A, B).

  If comprised as mentioned above, it will be in handrail 2 (equivalent to the lower part of top parts, such as the waist wall 1 of a balcony), to the connection cover 20A which connects the edge parts of adjacent sensor headboards 5 (A, B). Since the stopper 23 that can be contacted is provided, the locking means (first drop prevention means) for the normal sensor headboard 5 (A, B) such as forcibly fitting the locking claw 6d and the locking groove 5a should be used. Even if it comes off, the stopper 23 of the connecting cover 20A comes into contact with the lower part of the handrail 2 (see symbol a in FIG. 6A), so that the sensor headboard 5 (A, B) falls off the handrail 2. Therefore, the safety is further improved by the double dropout prevention by the stopper 23 which is the second dropout prevention means.

  Moreover, since the stopper 23 can be provided using the connection cover 20A, the cost is reduced and the workability is improved.

  Further, in the type as in the present embodiment in which the handrail 2 is attached to the top portion of the waist wall 1 or the like of the balcony, the stopper 23 is crossed in the orthogonal direction below the handrail 2 to the lower part of the handrail 2. Since the bent portions 23a, which are both ends of the stopper 23, can be fitted and locked in the grooves 20a, which are both lower ends of the connecting cover 20A, the stopper 23 can be rationally arranged. Can be placed.

  Further, the bent portion 23a of the stopper 23 can be fitted and locked in the groove portion 20a by being inserted into the groove portion 20a of the connecting cover 20A from the longitudinal direction (see symbol b in FIG. 5), so that the assembling property is improved. .

  As shown in FIGS. 7 (a), 7 (b) and 8, an internally threaded portion formed on the cut-and-raised portion 23b by forming a cut-and-raised portion 23b obliquely downward on one end side of the stopper 23. A fixing screw 24 is screwed into 23c obliquely upward (see arrow c in FIG. 8) so as to abut against at least one lower end 5b of the sensor headboard 5 (A, B).

  Thus, the stopper 23 can be securely fixed to the connecting cover 20A by screwing the fixing screw 24 of the stopper 23 and abutting against the lower end 5b of the sensor head 5 (A, B). The stopper 23 can be prevented from shifting, and the fixing screw 24 is inclined, so that the screwing workability by a screwdriver or the like is improved.

  As shown in FIG. 9 (a), when a packing 25 that contacts the upper surface of the sensor headboard 5 (A, B) is provided on the inner surface of the connecting cover 20A, as shown schematically in FIG. 9 (b), It is possible to prevent the connecting cover 20A from shifting in the longitudinal direction due to the elasticity of the packing 25, and water and dust enter the sensor headboard 5 (A, B) from the gap T at the end of the sensor headboard 5 (A, B). Can be prevented.

  In the above embodiment, the stopper 23 is provided on the connecting cover (straight joint) 20A. However, the same stopper 23 can be provided on the connecting cover (corner joint) 20B, and the end cap 21 is also provided. A similar stopper 23 can be provided.

  In the above embodiment, the sensor headboard 5 is provided on the top portion of the waist wall 1 of the balcony, but the sensor headboard 5 may be provided on the top portion of a fence or a fence.

It is a principal part perspective view of the balcony provided with the handrail which concerns on embodiment of this invention. It is a principal part expanded sectional view of FIG. It is a handrail from which the sensor headboard is removed, (a) is a perspective view, and (b) is an enlarged perspective view of a main part of (a). (A) is a perspective view of a leaf spring material and a sensor pressing material, (b) is a perspective view of the sensor pressing material viewed from the upper surface side, (c) is a perspective view of the sensor pressing material viewed from the lower surface side, (d) FIG. 4 is a side view of a sensor pressing member. It is a perspective view of the sensor headboard connected with the connection cover which concerns on embodiment of this invention. (A) is an expanded sectional view of the connection cover part of FIG. 5, (b) is the principal part enlarged view of (a). It is a stopper, (a) is a perspective view, (b) is an assembly perspective view of a fixing screw part. It is assembly | attachment sectional drawing of the fixing screw part of a stopper. (A) is a perspective view of the inner surface side of the connecting cover to which the packing is attached, and (b) is a schematic cross-sectional view showing the relationship between the sensor headboard, the connecting cover, and the packing.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Waist wall 2 Handrail 5 (A, B, C) Sensor headboard 5a Locking groove 5b Lower end part 6 Base material 6d Locking claw 7 Sensor holder 8 Pressure sensor 9 Sensor pressing material 11 Leaf spring material 20A, 20B Connection cover 20a Groove part 21 End cap 23 Stopper 23a Bending part 23b Cut and raised part 23c Female thread part 24 Fixing screw 25 Packing

Claims (5)

It is a security sensor that is equipped with a sensor headboard that covers the pressure sensor on the top part of the balcony's waist wall, fence, fence, etc., and that presses the pressure sensor when this sensor headboard is pushed down by a load,
A plurality of the sensor headboards are provided in series, and a connection cover for connecting the ends of adjacent sensor headboards is provided, and this connection cover is applied to a lower part of the top portion of the balcony such as a waist wall. Security sensor characterized by a stopper that can be touched.   A handrail is attached to the top portion of the balcony's waist wall, etc., and a pressure sensor at the top of the handrail is covered with a sensor headboard, and the stopper crosses the lower part of the handrail in the orthogonal direction at the bottom of the handrail. The security sensor according to claim 1, wherein the security sensor is arranged so as to be able to contact the stopper, and both end portions of the stopper are locked to both lower end portions of the connecting cover.   The security sensor according to claim 2, wherein both end portions of the stopper are inserted and locked to both lower end portions of the connection cover from the longitudinal direction of the connection cover.   The security sensor according to claim 2 or 3, wherein an oblique fixing screw is provided on the stopper, and the fixing screw is abutted against a lower end portion of the sensor headboard when screwed.   The security sensor according to any one of claims 2 to 4, wherein a packing that contacts an upper surface of the sensor headboard is provided on an inner surface of the connection cover.

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