JP3085744U - Security device for key device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inexpensive safety device which is easy to operate with a simple configuration, regardless of the shape and height of an inner operation piece of a key device and the shape of a case of the inner operation piece. A safety device includes a plate-like base portion detachably fixed at a predetermined position away from an inner operation piece of an opening / closing door, a guide member, and an inner operation side of the guide member. A movable table 15 slidably mounted on the movable table, and a pair of holding rods 2 arranged in parallel and horizontally on the movable table.
4 is provided. The holding bar has an inclined portion 24b which is inclined with respect to the longitudinally opposite end portions which are parallel to each other by bending the intermediate portion in the longitudinal direction at a predetermined angle,
It was attached to the movable table so as to be rotatable around the axis.
By moving the movable base, the locked inner operation piece is sandwiched by the pair of holding bars, whereby the locked state of the inner operation piece can be fixed, and an unauthorized unlocking operation from the outside can be prevented.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention is used for a key device that can be switched between locking and unlocking by an inside operation piece protruding inside the opening and closing door, and the locking state by the inside operation piece can be released by an operation from the outside of the opening and closing door. The present invention relates to a safety device for a key device that can be locked so as not to be locked.

[0002]

[Prior art]

 Although this type of key device is intended to prevent unauthorized entry into the room from the outside, it can be unlocked by a special method from the outside, so there is a problem with its security. Therefore, appropriate safety devices are also required from the viewpoint of crime prevention. Conventionally, as a safety device for a key device of this type, for example, as shown in Japanese Patent Application Laid-Open No. 2001-107607, there is known an inner operation piece restricting member which is attached to an inner operation piece and regulates an unlocking operation thereof. Have been. The inner operation piece restricting member has a restricting hole penetrating the inner operation piece, and a restricting member main body provided with a rotation preventing piece at an end portion, and a restricting member provided on the back side of the restricting member main body. And an adsorbing member that adsorbs to the outer case of the inner operation piece formed of a metal member. The inner operation piece regulating member covers the attraction member formed of the magnetic metal member in a state where the regulating member body is put on the outer case of the key device in a locked state, and the regulating hole is fitted to the inner operation piece. It is attached to the inner operation piece by adsorbing to the outer case. Accordingly, the inner operation piece restricting member can reliably prevent an unauthorized unlocking of the locked key device from the outside.

[0003]

[Problems to be solved by the invention]

 By the way, the inside operation piece regulating member has a regulation hole that penetrates the inside operation piece, and the shape of the inside operation piece in a general key device is a vertical flat plate shape having a flat plate, There are various shapes such as an elliptical plate. Therefore, it is necessary to prepare various types of inner operation piece restricting members having various restricting holes, and there is a problem that the product management is complicated and the cost is relatively increased.

[0004] In addition, as for the shape of the inner operation piece of the key device, there is also a type in which the inner operation piece is simply attached to a cylindrical projection in addition to the one provided with the box-shaped case. In particular, since it is difficult to attach the inner operation piece regulating member to the cylindrical projection, there is a problem that the versatility as a safety device for a key device is lacking. Furthermore, in addition to the shape of the inner operation piece of the key device, since the height from the surface of the door to the inner operation piece is not fixed by the key device, the height of the safety device that regulates the inner operation piece is constant. However, there is a problem that the versatility is poor.

[0005] The present invention is intended to solve the above-described problem, and the operation is easy with a simple configuration regardless of the shape and height of the inner operation piece of the key device and the shape of the case of the inner operation piece. It is an object of the present invention to provide an inexpensive, highly versatile key device safety device.

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, a structural feature of the invention according to claim 1 is that it is attached to the door and can be locked and unlocked by a key inserted from the outside of the door. Locking and unlocking can be switched by the inside operation piece protruding inside the door, and furthermore, it is a safety device used for a key device in which locking and unlocking operations by the key and the inside operation piece are linked. A plate-shaped base that is detachably fixed at a position away from the inner operation piece of the door, a movable base slidably mounted on the base toward the inner operation side, and a movable base A pair of clamping rods arranged parallel to each other along the moving direction, fixed to the moving table so that the distance between them and the distance from the moving table can be adjusted, and having one end protruding from the moving table. Move the table and use a pair of By sandwiching the inner operating piece of state, it is to disable release the locked state of the inner operating piece.

[0007] In the invention of claim 1 having the above configuration, the safety device can be easily attached to the opening / closing door by fixing the base portion to a position distant to the side of the inner operation piece of the opening / closing door. Therefore, the safety device can be used without being affected by the shape of the inner operation piece. Then, with the distance and height of the pair of holding rods adjusted according to the shape and height of the inner operation piece, slide the movable base slidably attached to the base part, and fix the movable base to the movable base. The locked inner operation piece is sandwiched between the pair of holding rods. As a result, it is possible to reliably prevent the unlocking operation of the inner operation piece due to an unauthorized operation from the outside of the opening / closing door. In addition, since the interval and height of the pair of holding bars can be easily adjusted according to the shape and height of the inner operation piece, they are not affected by the shape and height of the inner operation piece. The versatility of the safety device will be improved, and mass production of a single product will be possible, which will reduce the price.

[0008] Further, the safety device is provided with a plate-shaped base portion detachably fixed at a predetermined position away from the inner operation piece of the opening / closing door, and a transfer device slidably mounted on the base portion toward the inner operation piece. The moving table and the moving table are arranged in parallel with each other along the moving direction, and an intermediate portion between both ends in the longitudinal direction is parallel to each other. It is constituted by a pair of clamping rods that are fixed to the movable table by the side part so as to be rotatable around the axis, and by moving the movable table, the locked inner operation piece is sandwiched by the pair of clamping rods. The locked state of the inner operation piece can not be released (the invention of claim 2 above). Thus, by rotating the pair of holding rods about the axis and fixing them at a desired position, the distance between them and the height with respect to the base portion can be freely adjusted.

Further, the safety device is detachably fixed at a predetermined position away from the inner operation piece of the opening / closing door, a plate-like base portion, a support base fixed to the base portion, and a support base parallel to each other. And a pair of clamping rods that are mounted horizontally, are adjustable in distance from each other and the distance from the moving table, and are slidably mounted on the inner side of the operating piece and protrude from the moving table. Then, the locked state of the inner operation piece can not be released by pinching the inner operation piece in the locked state by moving the pair of holding rods (invention of claim 3). With this arrangement, with the interval and height of the pair of holding rods adjusted according to the shape and height of the inner operation piece, the pair of holding rods attached to the support base are slid, and the locked inner side is moved. The locked state of the inner operation piece can be maintained by fixing the holding bar sandwiching the operation piece to the support base.

[0010] Further, the safety device is detachably fixed to a predetermined position away from the inside operation piece of the opening / closing door, a plate-like base portion, a support base fixed to the base portion, and a support base parallel to the support base. Are arranged at an angle, and the middle part between them is inclined with respect to both ends in the longitudinal direction, which are parallel to each other.The one end in the longitudinal direction enables the support base to rotate around the axis. It is composed of a pair of holding rods attached, and by moving the pair of holding rods, the locked inner operating piece can be sandwiched and the locked state of the inner operating piece can not be released (the invention of claim 4). ). As a result, with the distance and height of the pair of holding rods adjusted according to the shape and height of the inner operation piece, the pair of holding rods mounted on the support base were slid to lock the pair. The locked state of the inner operation piece can be maintained by fixing the holding bar sandwiching the inner operation piece to the support base. In addition, the base can be attached to the door with an adhesive double-sided tape. Thus, the base can be easily fixed to and removed from the door.

[0011]

[Embodiment of the invention]

 Hereinafter, an embodiment of the present invention will be described with reference to the drawings. 1 to 4 are a front view, a plan view, a left side view, and a right side view of a key device safety device (hereinafter, referred to as a safety device) used for a key device attached to an opening / closing door according to a first embodiment. This is shown in a plan view. 5 and 6 show the use state of the safety device in a front view and a plan view.

The safety device 10 includes a plate-shaped base 11 that is detachably fixed to the side of the inner operation piece 3 of the key device 2 attached to the opening and closing door 1, a guide member 12, and a guide. A movable table 15 slidably mounted on the inner side of the operating member on one side, and a movable table 15 disposed parallel to and horizontal to the movable table 15 and rotatably mounted on the movable table 15 about an axis. It is constituted by a pair of holding bars 24. The key device 2 is a well-known cylinder lock or the like, and can be locked and unlocked by rotating a key (not shown) inserted from the outside of the opening and closing door 1. Locking and unlocking can be switched by the provided inner operation piece 3, and locking and unlocking operations by the key and the inner operation piece 3 are linked.

The base portion 11 of the safety device 10 is a long rectangular metal plate, and a guide made of a long rectangular metal plate except for both ends in the longitudinal direction and both ends in the width direction. The member 12 is fixed. The guide member 12 is a guide portion 13 that is lifted by bending at both ends in the width direction, and a gap is provided between the guide portion 13 and the base portion 11.

The moving table 15 includes a hexagonal cylinder 16 having a longitudinal length substantially half that of the guide member 12 and a hexagonal cylinder 16 formed by sequentially bending a long rectangular metal plate by bending. A fixed plate portion 17 made of a metal plate and having the same longitudinal length as the hexagonal tube portion 16 for fixing the pair of holding rods 24 is provided. The hexagonal cylinder 16 has a hexagonal cylindrical shape in which a rectangular cross-section in the direction perpendicular to the longitudinal direction is formed by connecting a rectangle to the bottom side of both legs 16a having the shape of a trapezoid. A pair of engaging pieces 16c which are bent at a right angle and slightly protrude in opposite directions are formed at the ends of a pair of vertical plate portions 16b following both legs 16a in the shape of a trapezoid. A pair of mounting holes (not shown) are provided at both ends in the longitudinal direction of the upper bottom portion 16d of the isosceles trapezoidal portion of the hexagonal cylinder portion 16. The lower plate 18 of the fixed plate 17 is fixed to the upper bottom 16d by welding or the like.

The fixed plate 17 has a lower plate 18 and an upper plate 19 which are formed by bending a metal plate. The lower plate portion 18 and the upper plate portion 19 are symmetrical to each other, and have fixed portions 18a and 19a whose both ends in the width direction extend along the longitudinal direction. A pair of mounting holes (not shown) are provided corresponding to the mounting holes of the upper bottom portion 16. The fixing portions 18a and 19a are formed by bending a flat plate at a predetermined angle, and have a chevron-shaped cross section at right angles to the longitudinal direction that is folded halfway. The lower plate portion 18 is fixed to the upper bottom portion 16d with the fixing portion 18a facing the hexagonal tube portion 16 side.

Further, a pair of bolts 21 inserted from the side of the hexagonal cylinder 16 are fixed to the mounting hole of the hexagonal cylinder 16 and the mounting hole of the lower plate 18 by welding or the like. An upper plate 19 is attached to the lower plate 18 through a bolt 21 so as to overlap with each other, and is fixed by a nut 22 screwed to the bolt 21. A pair of holding bars 24 are inserted into the fixing portions 18a and 19a of the lower plate portion 18 and the upper plate portion 19, and are fixed by tightening nuts 22.

The holding bar 24 is formed by bending a metal round bar, has a length substantially equal to the length of the base unit 11, and is fixed to the lower plate unit 18 and the upper plate unit 19. The base 24a is fixed to the base 24a, the inclined part 24b is bent at a slight angle at the inner end of the base 24a, and the holding part 24c is folded back at the tip of the inclined part 24b so as to be parallel to the base 24. It is configured. The clamping rod 24 is rotatable in the fixed portions 18a and 19a by loosening the nut 22. In FIGS. 1 to 4, the interval between the holding portions 24 c is an intermediate interval equal to the interval between the base portions 24 a, and is at the lowest position closest to the base portion 11.

For example, as shown in FIG. 7, by rotating the holding bar 24, the interval between the holding portions 24 c is an intermediate interval equal to the interval between the base portions 24 a, but is the most distant from the base portion 11. To the highest position, so that when the inner operation piece is at a high position, it can be appropriately handled. Further, as shown in FIG. 8, by rotating the holding rod 24 to make the holding portion 24c horizontal, the distance of the holding portion 24c from the base 11 is an intermediate position, but the distance between the holding portions 24c is reduced. It can be maximized, which makes it possible to respond appropriately when the width of the inner operation piece is wide. In addition, by rotating the holding bar 24, the interval between the holding portions 24c and the distance from the base portion 11 can be changed to desired dimensions, and accordingly, various heights and widths of the inner operation piece can be appropriately adjusted. It is possible to respond.

In the safety device 10 configured as described above, as shown in FIGS. 5 and 6, the base portion 11 is attached to the back surface at a position away from the side of the inner operation piece 2 of the door 1. Adhering with the double-sided adhesive tape 14 is convenient because it is possible to easily fix without having to prepare a separate fixing member. Note that an adhesive, a magnet, or the like can be used instead of the double-sided adhesive tape. Therefore, the safety device 10 can be used without being affected by the shape of the inner operation piece 2, and is excellent in versatility. Then, with the interval and height of the pair of holding bars 24 adjusted according to the shape and height of the inner operation piece 2, the pair of holding bars 24 are fixed to the fixing portions 18 a of the lower plate portion 18 and the upper plate portion 19. It is fixed to the moving table 15 by clamping the nut 19a and tightening the nut 22. Further, by sliding the movable base 15 attached to the base part 11, the inner operation piece 2 in the locked state is tightly and firmly gripped by the pair of gripping rods 24 fixed to the movable base 15. be able to. As a result, the act of releasing the locked state of the inner operation piece 2 due to an unauthorized operation from the outside can be reliably prevented. In addition, since the interval and height of the pair of holding rods 24 can be easily adjusted according to the shape and height of the inner operation piece, they are not affected by the shape and height of the inner operation piece 2. Therefore, the versatility of the safety device is improved, and mass production is possible with a single product, so that the price can be reduced.

Next, a second embodiment will be described. 9 to 12 show a front view and a plan view of the safety device 30 used for the key device attached to the opening / closing door according to the embodiment. The safety device 30 has a structure in which the guide member 12 of the safety device 10 is eliminated, a support table 32 fixed to the base 11 is provided in place of the movable table 15, and a base 33 a of a clamping rod 33 attached to the support table 32. Are lengthened, and the inclined portion 33b and the holding portion 33c have the same length. Other configurations are the same as those of the safety device 10, and similar portions are denoted by the same reference numerals.

The safety device 30 is fixed to the support base 32 by moving the holding bar 33 with respect to the support base 32 and holding the locked inner operation piece 2 by the holding portion 33 c on the distal end side. By doing so, the inner operation piece 2 can be locked in a locked state. Thus, also in the present embodiment, the same effect as in the first embodiment can be obtained. In addition, since the safety device 30 does not require a guide member, the configuration can be simplified as compared with the safety device 10, and as a result, the manufacturing cost of the safety device 30 can be further reduced.

In the above embodiment, a simple safety device for manually moving the moving table or the holding bar has been described. However, an automatic device for automatically moving the movable table or the holding bar by an external remote control operation may be added. . In addition, the safety device shown in the above embodiment is an example, and various changes can be made without departing from the gist of the present invention.

[0023]

[Effect of the invention]

 According to the present invention, the key device safety device can be used without being affected by the shape of the inner operation piece. In addition, since the locked inner operation piece can be held by a pair of holding rods fixed to the movable base or the support base, the unlocking operation of the inner operation piece due to an unauthorized operation from the outside of the opening / closing door can be prevented. It can be prevented reliably. In addition, since the distance and height of the pair of pincers can be easily adjusted according to the shape and height of the inner operation piece, the versatility of the safety device is improved, and mass production of a single product is possible. Because it becomes possible, the price can be reduced.

[Brief description of the drawings]

FIG. 1 is a front view showing a safety device for a key device according to a first embodiment of the present invention.

FIG. 2 is a plan view showing the safety device.

FIG. 3 is a left side view showing the safety device.

FIG. 4 is a right side view showing the safety device.

FIG. 5 is a front view showing a use state of the safety device.

FIG. 6 is a plan view showing a use state of the safety device.

FIG. 7 is a front view and a left side view showing another embodiment of the safety device.

FIG. 8 is a front view and a left side view showing still another embodiment of the safety device.

FIG. 9 is a front view showing a safety device according to a second embodiment.

FIG. 10 is a plan view showing the safety device.

FIG. 11 is a front view showing a use state of the safety device.

FIG. 12 is a plan view showing a use state of the safety device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Opening / closing door, 2 ... Key device, 3 ... Inside operation piece, 10 ... Safety device for key devices, 11 ... Base part, 12 ... Guide member, 15
... Mobile table, 16 hexagonal cylinder part, 17 fixed plate part, 18 lower plate part, 19 upper plate part, 21 bolt, 22 nut, 24 clamping pin, 24a base part, 24b inclined part, 2
4c: clamping portion, 30: safety device, 32: support base, 33:
Clamping bar, 33a: base, 33b: inclined portion, 33c: clamping portion.

Claims (5)

[Utility model registration claims] 1. A lock which is attached to an opening and closing door and can be locked and unlocked by a key inserted from the outside of the opening and closing door, and is also locked and locked by an inner operation piece protruding inside the opening and closing door. It is a safety device used for a key device which can be switched for unlocking and in which locking and unlocking operations by the key and the inside operation piece are linked, a predetermined position of the opening / closing door separated from the inside operation piece. A plate-shaped base portion detachably fixed to, a moving table slidably attached to the inner operation piece side on the base portion, and arranged on the moving table in parallel with each other along the moving direction, A pair of clamping bars that are fixed to the moving table so that the distance between them and the distance from the moving table can be adjusted, and have one end protruding from the moving table; The inside operation in the locked state By sandwiching the key device for a safety device, characterized in that disabling release the locked state of the inner operating piece. 2. A lock which is attached to an opening and closing door and can be locked and unlocked by a key inserted from outside of the opening and closing door, while being locked and unlocked by an inner operation piece protruding inside the opening and closing door. It is a safety device used for a key device which can be switched for unlocking and in which locking and unlocking operations by the key and the inside operation piece are linked, a predetermined position of the opening / closing door separated from the inside operation piece. A plate-shaped base portion detachably fixed to, a moving table slidably attached to the inner operation piece side on the base portion, and arranged on the moving table in parallel with each other along the moving direction, An intermediate portion between the two ends in the longitudinal direction parallel to each other is an inclined portion, and a pair of one end portions in the longitudinal direction are fixed to the movable table so as to be rotatable around the axis. With a pincer By sandwiching the inner operating piece of the locking state by the pair of holding rods by moving the moving table, the key device for a safety device, characterized in that disabling release the locked state of the inner operating piece. 3. A lock which is attached to the door and can be locked and unlocked by a key inserted from the outside of the door, while locking and locking can also be performed by an inner operation piece protruding inside the door. It is a safety device used for a key device which can be switched for unlocking and in which locking and unlocking operations by the key and the inside operation piece are linked, a predetermined position of the opening / closing door separated from the inside operation piece. A plate-shaped base portion detachably fixed to the base, a support fixed to the base, and arranged parallel and horizontally to each other on the support, and the distance between each other and the distance from the movable base are adjusted. And a pair of clamping rods attached to the support table and slidably protruding from the moving table, and the inner side in the locked state is moved by moving the pair of clamping rods. Hold the operation piece The safety device for a key and wherein the disabling release the locked state of the inner operating piece. 4. A lock which is attached to the door and can be locked and unlocked by a key inserted from the outside of the door, and can be locked and locked by an inner operation piece protruding inside the door. It is a safety device used for a key device which can be switched for unlocking and in which locking and unlocking operations by the key and the inside operation piece are linked, a predetermined position of the opening / closing door separated from the inside operation piece. A plate-shaped base portion detachably fixed to the base portion, a support base fixed to the base portion, and an intermediate portion between the longitudinally opposite end portions disposed parallel to each other on the support base and parallel to each other. Has a pair of holding bars rotatably mounted on the support base around an axis by one end portion in the longitudinal direction, and moves the pair of holding bars. Locked by The sandwiching the inner operation piece, the key device for a safety device, characterized in that disabling release the locked state of the inner operating piece. 5. The method according to claim 1, wherein the base is attached to the door by an adhesive double-sided tape.
The safety device for a key device according to any one of claims 1 to 4.