JP2009221749A - Installing structure of cylinder cover - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an installing structure of a cylinder cover which can securely prevent the destruction of a cylinder cover caused by mischievous conduct, an operating error or the like. <P>SOLUTION: The installing structure of the cylinder cover has a cylinder lock 2 and the cylinder cover 4. The locking and unlocking operation of the cylinder lock 2 can be performed by an unlocking key 1, and the cylinder cover 4 is rotatably connected to the attaching substrate 3 of the cylinder lock 2, covers the head of the cylinder lock 2 in a closed-lid state. A cover-engagement concavity 5 and a key acceptance part 6 are provided to the attaching substrate 3. The entire finger-catching part used at the time of raising operation of the cylinder cover 4 in the closed-lid state is engaged with and stored in the cover-engagement concavity 5, and the key acceptance part 6 is provided along the back of the cylinder cover 4 in the closed-lid state, allows the insertion of the unlocking key 1. Then an interference projection 7 is provided on the back of the cylinder cover 4 which interferes with the tip of the unlocking key 1 inserted into the key acceptance part 6 and which obtains turning moment in the lid-opening direction from the insertion-operation force of the unlocking key 1. Thus, the cylinder cover 4 can be turned in the lid-opening direction at an appropriate angle by the insertion operation of the unlocking key 1 to the key acceptance part 6. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a cylinder cover mounting structure.

  As a cylinder cover mounting structure that restricts the free opening operation of the cylinder cover that covers the cylinder lock, a structure described in Patent Document 1 is known.

In this conventional example, the cap board (cylinder cover) connected to the pedestal ring holding the cylinder lock is rotatable in a plane orthogonal to the rotation operation shaft, and is locked in a closed state covering the cylinder lock. The rotation operation is restricted by being locked to the body. The locking body is fixed to the spring plate-like arm plate, and the cylinder cover opening operation is performed by inserting the unlocking key from the notch for unlocking operation formed at the boundary between the pedestal ring and the cylinder cover. After that, the arm plate is pushed down by the unlocking key to release the locking body.
Japanese Utility Model Publication No. 4-51571

  However, the conventional example described above has the following problems. That is, in the above-described conventional example, the opening operation restriction of the cylinder cover is performed by the rotation restriction by the locking body, and the application of the rotational operation force to the cylinder cover is not prohibited. For this reason, it is not possible to prevent mischief or erroneous operation of forcibly rotating the cylinder cover, and as a result, it is not possible to prevent destruction of the cylinder cover due to the operation.

  The present invention has been made to eliminate the above-described drawbacks, and an object of the present invention is to provide a cylinder cover mounting structure that can reliably prevent the cylinder cover from being broken due to mischief or erroneous operation. Another object of the present invention is to provide a locking / unlocking control apparatus that employs the mounting structure described above.

  The cylinder cover 4 includes an interference projection 7 on the back surface, and is rotated between a closed state and an open state, and covers the head of the cylinder lock 2 in the closed state. When in the closed state, the cylinder cover 4 is fitted in the cover fitting concave portion 5 formed in the mounting base without leaving a finger hook portion necessary for performing the raising operation. Opening operation to the cylinder cover 4 is prohibited.

  The operation of the cylinder cover 4 from the closed state is performed by inserting the unlocking key 1 into the key receiving portion 6 and formed on the back surface of the cylinder cover 4 by the tip of the unlocking key 1 inserted into the key receiving portion 6. When the interference protrusion 7 is pushed, a rotational moment in the opening direction is generated in the cylinder cover 4. As a result, the cylinder cover 4 rotates in the opening direction by a predetermined angle, and thereafter, the opening operation can be performed using the side wall or the like that has appeared outside as a result of the rotation as a finger allowance.

  Therefore, in the present invention, the cylinder cover 4 is closed without a finger allowance necessary for the opening operation, so that a load cannot be applied to the cylinder cover 4 due to mischief, erroneous operation, etc. Breakage of the cover 4 can be prevented. Further, when the cylinder cover 4 is opened, the unlocking key 1 for unlocking the cylinder lock 2 covered by the cylinder cover 4 can be provided, and a special tool or the like is not required. I will not let you. Further, the opening operation of the cylinder cover 4 is performed by inserting the unlocking key 1 into the key receiving portion 6 and does not require squeezing by the unlocking key 1, so that destruction by squeezing can be reliably prevented.

  The cylinder cover 4 does not need to be completely moved to the open position by inserting the unlocking key 1, and the side wall orthogonal to the rotation base end edge or the rotation end edge is lifted from the surface of the mounting base 3 at a predetermined height. It is sufficient that the user rotates the finger so that the user can perform a rotating operation.

  In order to prevent rattling in the closed state, it is desirable to apply a biasing force to the cylinder cover 4 in the closing direction. In this case, the use of the torque hinge 8 further improves usability. Can be made. The torque hinge 8 has a neutral range where no torque is generated at an intermediate position at the end of the rotation stroke. When the rotational position deviates clockwise or counterclockwise from the neutral range, a biasing force is generated in the deviated direction. .

  When the torque cover 8 is used to pivotally support the cylinder cover 4 on the mounting base 3, the cylinder cover 4 is biased toward the opening rotation position side from the neutral range located between the opening rotation position and the closing rotation position. In this case, when the biasing force toward the lid rotation position is biased toward the lid rotation position, the biasing force toward the lid rotation position is generated. On the other hand, the interference protrusion 7 is set to elevate the cylinder cover 4 from the closed position to the neutral range by inserting the unlocking key 1, and after the unlocking key 1 is inserted, the unlocking key 1 is removed. Even so, the cylinder cover 4 is held in the upright position without being given a return torque in the closing direction.

  As a result, the user inserts the unlocking key 1 and raises the cylinder cover 4, then removes the unlocking key 1, then rotates the cylinder cover 4 in the opening direction, and then unlocks the key 1. Can be used to unlock the cylinder lock 2.

  The above mounting structure can be applied to various products, but when applied to a locking / unlocking control device provided with the cylinder lock 2 as an auxiliary locking / unlocking means of the electronic authentication means 9, the cylinder lock 2 which is not used in normal operation can be used. Since exposure to the outside of the head can be prevented, the degree of freedom of design processing for the locking / unlocking control device is increased. The locking / unlocking control device can be applied to, for example, an electric lock for a house, a door handle device for an automobile, and the like.

  According to the present invention, since the load of the opening operation force on the cylinder cover in the closed state is regulated, it is possible to reliably prevent the cylinder cover from being broken due to mischief or erroneous operation.

  1 and 2 show an embodiment of the present invention configured as an electric lock 11. The electric lock 11 is formed by accommodating an authentication device 9 and a locking / unlocking drive unit 12 in an apparatus housing 3 that becomes an attachment base 3 of a cylinder lock 2 to be described later, and is fixed to a house door 10 by appropriate means. .

  The authentication device 9 authenticates the input operator's locking / unlocking operation authority on the condition that the input from the personal identification number input unit 9b in which the numeric keys 9a are arranged in a matrix and the pre-registered code match. As shown in FIG. 1 (a), when the lid plate 13 that is closed when not in use is opened as shown in FIG. 2 (a) and authentication for the password entered from the authentication number input unit 9b is established, A motor (not shown) arranged in the drive unit 12 is driven to rotate the drive shaft, and the box lock 14 in the door 10 is locked and unlocked.

  Further, the cylinder lock 2 is mounted on the device casing 3 as an emergency locking / unlocking means when the locking / unlocking drive unit 12 fails or the operation of the battery 16 housed in the battery box 15 is stopped. . As shown in FIG. 2 (b), the cylinder lock 2 that is supposed to be used in an emergency is covered with a cylinder cover 4 so that the head is not exposed to the outside during normal operation. Exposed to. By covering the head of the cylinder lock 2 with the cylinder cover 4, it is possible to increase the degree of design freedom and to prevent water and dust from entering the cylinder lock 2 due to the constant exposure of the key insertion opening 2a. Intrusion is prevented.

  The details of the mounting portion of the cylinder cover 4 are shown in FIG. As shown in FIGS. 4 and 5, the cylinder cover 4 is a rectangular plate-like member in front view in which hinge blocks 4 a are bulged at both ends of one side edge, and the device is provided via a torque hinge 8 fixed to the hinge block 4 a. Fixed to the housing 3. In order to connect the torque hinge 8, a rectangular connection opening 4 b is opened on the side of the hinge block 4 a.

  As shown in FIG. 4, the torque hinge 8 is formed by connecting a movable portion 8b to a fixed cylindrical portion 8a so as to be relatively rotatable. The movable portion 8b is set with a stable rotational position with respect to the fixed cylinder portion 8a. Among the rotational angles (θ) between the stable rotational positions, an urging rotational range is set within a predetermined angular range (α) from the stable rotational position. Is done. The movable portion 8b behaves as a normal movable shaft when it is in a neutral range other than the energizing rotation range, and when entering the energizing rotation range, torque is given by a cam or the like not shown in the figure that is accommodated in the fixed cylinder portion 8a. And is biased toward the nearest stable rotation position.

  In order to connect the cylinder cover 4, the apparatus housing 3 includes a hinge member 18 fixed to the housing body 17. The hinge member 18 has a hinge fixing portion 18c that bulges on one side edge of the receiving plate portion in which the cylinder insertion hole 18b is opened at the center of the cylinder receiving recess portion 18a, and the receiving plate portion is a hinge on the housing body 17 side. After fitting into the receiving recess 17a, the cylinder receiving recess 18a is clamped by the head of the cylinder lock 2 and fixed to the housing body 17 (see FIG. 3). Further, the hinge member 18 is provided with a U-shaped protrusion 18e that protrudes from the back surface of the receiving plate portion 18d and fits into the U-shaped recess 17b on the housing body 17 side in a fixed state to the housing body 17. .

  The hinge fixing portion 18c is provided with a hinge fixing concave portion 18f that opens toward both sides, and the fixed cylinder portion 8a of the torque hinge 8 is fitted and fixed. As shown in FIG. 5, the cylinder cover 4 includes a hinge fixing portion 18c sandwiched between left and right hinge blocks 4a, and a movable portion 8b of the torque hinge 8 having a fixed cylinder portion 8a fixed to the hinge fixing portion 18c. It is connected to the hinge member 18 by being fixed to the connection opening 4b.

  In order to accommodate the cylinder cover 4 coupled to the apparatus housing 3 as described above, the apparatus housing 3 is formed with a cover fitting recess 5 that is opened downward (this specification) In the above, “upper and lower”, “front” and “back” are determined based on the state attached to the door 10.) The cylinder cover 4 is fitted in the cover fitting recess 5 in a closed state in which the head of the cylinder lock 2 is covered, and the surface thereof is substantially flush with the surface of the apparatus housing 3 as shown in FIG. It sinks to the position. In this state, the three edges excluding the rotation base end of the cylinder cover 4 are surrounded by the side wall of the cover fitting recess 5, and there is no part that becomes a finger allowance for causing the cylinder cover 4. For example, it is prevented that the opening operation is caused by illusion.

  In order to open the cylinder cover 4, a key receiving portion 6 is formed on the apparatus housing 3, and an interference projection 7 is formed on the cylinder cover 4. As shown in FIGS. 4 and 5, the key receiving portion 6 is disposed at the center of the lower end edge of the hinge receiving recess 17 a of the housing body 17, the bottom wall is on the housing body 17 side, and the ceiling wall is by the hinge member 18. It is formed. The key receiving portion 6 is formed to be slightly wider than the width dimension of the blade portion 1a of the unlocking key 1 used for locking and unlocking the cylinder lock 2, and the component on the side of the housing body 17 has a U-shaped recess 17b as a base end. As a concave groove having an inclined surface 17c inclined obliquely downward toward the front surface and reaching the bottom wall surface of the hinge receiving recess 17a.

  The back surface of the hinge member 18 is formed with an inclined surface 18g that faces the bottom wall on the side of the housing body 17 with a gap slightly larger than the plate thickness of the blade portion 1a of the unlocking key 1, The ceiling wall of the key receiving portion 6 is configured in a fixed state to the body main body 17.

  On the other hand, as shown in FIG. 6, the interference protrusion 7 is formed at a position that interferes with the tip of the blade portion 1 a of the unlocking key 1 inserted into the key receiving portion 6. When the unlock key 1 is further inserted from the inserted state of the unlock key 1 shown in FIG. 6, the tip of the blade portion 1 a presses the interference projection 7, and a moment in the opening direction is generated in the cylinder cover 4. As shown in FIG. 7A, the cylinder cover 4 rotates by a predetermined rotation angle with the blade portion 1a inserted until the tip comes into contact with the bottom wall of the U-shaped recess 17b. This angle is the rotational position of the neutral range of the torque hinge 8 described above. Even if the unlocking key 1 is removed from the key receiving portion 6 from this state, the cylinder cover 4 is held at the rotational position. As shown in FIG. 7 (b), the cylinder lock 2 can be operated by rotating the cylinder cover 4 to the open position and using the unlocking key 1 removed.

  After the cylinder lock 2 is operated, the cylinder cover 4 is forcibly rotated to the closing position by the urging force of the torque hinge 8 when the cylinder cover 4 is rotated to the urging rotation range near the closing position. Since the cylinder cover 4 is biased in the overstroke direction by the torque hinge 8 in the closed state, rattling or the like is prevented.

It is a figure which shows this invention, (a) is a front view, (b) is a 1B-1B sectional view taken on the line. It is a figure which shows an open state, (a) is a figure which shows the open state of a cover board, (b) is a figure which shows the cover open state of a cylinder cover. It is a figure which shows the state which attached the cylinder cover, (a) is a side view, (b) is principal part sectional drawing. It is sectional drawing which shows the assembly | attachment of the attaching part of a cylinder cover. It is a front view which shows the assembly | attachment of the attaching part of a cylinder cover. It is a figure which shows insertion of the unlocking key to a key receiving part, (a) is a front view, (b) is sectional drawing. FIG. 5 is a diagram illustrating a cylinder cover opening operation, where (a) illustrates a state in which the cylinder cover is rotated to a rotational position in a neutral range of the torque hinge, and (b) illustrates a state in which the cylinder cover is rotated to an open position. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Unlocking key 2 Cylinder lock 3 Mounting base 4 Cylinder cover 5 Cover fitting recessed part 6 Key receiving part 7 Interference protrusion 8 Torque hinge 9 Electronic authentication means

Claims (5)

A cylinder lock that can be unlocked and unlocked with an unlock key;
A cylinder cover that is rotatably connected to the mounting base of the cylinder lock and covers the head of the cylinder lock in the closed state;
A cover fitting recess that is fitted and accommodated in the mounting base without leaving a finger allowance that is caused by a cylinder cover in a closed state and used during operation;
A key receiving portion that allows insertion of the unlocking key along the back surface of the cylinder cover in the closed state; and
The back surface of the cylinder cover is provided with an interference projection that interferes with the tip of the unlocking key inserted into the key receiving portion and obtains a rotational moment in the opening direction from the insertion key insertion force.
A cylinder cover mounting structure in which the cylinder cover is rotated in an appropriate angle opening direction by inserting the unlocking key into the key receiving portion.   2. The cylinder cover mounting structure according to claim 1, wherein the interference protrusion is disposed in the vicinity of the rotation center of the cylinder cover, and the key receiving portion is provided corresponding to a rotation base end side edge of the cylinder cover. The cylinder cover is
When biased to the opening rotation position side from the neutral range located between the opening rotation position and the closing rotation position, the biasing force to the opening rotation position side is
When it is biased toward the lid rotation position, it is connected to the mounting base by a torque hinge that generates a biasing force toward the lid rotation position.
The cylinder cover mounting structure according to claim 1 or 2, wherein the cylinder cover is rotationally driven to a neutral range by a pressing operation at a tip of an unlocking key. A locking / unlocking control device provided with a cylinder lock as an auxiliary locking / unlocking means of the electronic authentication means,
A locking / unlocking control device, wherein the cylinder lock is covered by a cylinder cover mounted by the cylinder cover mounting structure according to claim 1, 2, or 3.   The locking / unlocking control apparatus according to claim 4, wherein the key receiving portion is opened downward in an installed state on the door.

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