JP5489670B2 - Locking device - Google Patents

Description

  The present invention relates to a locking device that unlocks and locks using a key, and more particularly to a locking device for furniture, household items, and the like.

  Conventionally, various research and development have been conducted on locking devices. For example, Patent Document 1 discloses a lock with an open / close display mechanism.

  In the lock with an open / close display mechanism described in Patent Document 1, when the cylindrical lock body having the lock fixing means which is the outer cylinder and the unevenness of the inserted key which is the inner cylinder are aligned with the lock fixing means, the unlocking is performed. In the rotary lock of the type in which the rotary body that is the inner cylinder can be replaced from the front without the existing opening / closing display mechanism consisting of a rotary body having a keyhole into which a key that is locked and rotated within the lock body can be inserted. The rotating body that is a cylinder is provided with a display window that is cut out at a part of the collar that engages with the lock body, and the lock body is provided with a part of the display window that is cut out at a part of the collar of the rotating body. Correspondingly, a separate display part that can determine whether it is open or closed is provided, and an inner cylinder stopper for rotation regulation is formed on the back side of the collar part of the rotating body that regulates the relation between the display window and the display part, The inner cylinder stopper is provided at a position substantially opposite to the display window of the collar, and is provided at the collar of the rotating body in the inlay part of the lock body. It discloses a one outer tube stopper for restricting the rotation to collide with the cylinder stopper is formed.

Japanese Patent No. 4248032

  However, the lock with the open / close display mechanism described in Patent Document 1 is provided with a separate display unit that can determine open / close, but the open / close display (hereinafter referred to as open / close information) is small depending on the situation, so that it is visually recognized. There is a problem that it is difficult. Specifically, in a locking device such as a desk, since the locking device is provided below the desk, an operator sitting in a chair may not be able to easily recognize the opening / closing information of the locking device. is there.

  Further, as the aging society progresses, there is a problem that the operator cannot recognize the opening / closing information of the locking device if the area of the display unit is small.

  An object of the present invention is to provide a locking device that facilitates recognition of opening / closing information displayed on a display unit.

(1)
A locking device according to one aspect is a locking device that locks and unlocks by inserting a key into a keyhole and rotating, and has a flange portion at one end side and a keyhole formed at one end side. An inner cylinder and an outer cylinder having a flange portion and holding at least a part of the inner cylinder, and the flange portion of the inner cylinder is at least a part of the flange portion of the outer cylinder along the extending direction of the key hole The window portion is provided in a part of the flange portion of the inner cylinder.

  The locking device according to the present invention has a size in which the flange portion of the inner cylinder hides the flange portion of the outer cylinder along the extending direction of the key hole, and a window portion is provided in a part of the flange portion of the inner cylinder. It is.

  In this case, the size of the window portion of the flange portion of the inner cylinder can be increased. That is, since the structure which fits the flange part of an inner cylinder to the flange part of an outer cylinder is not employ | adopted, the flange part of an inner cylinder can be enlarged and it is about 3 times compared with the case where it fits. A window can be formed. As a result, locking and unlocking of the locking device can be easily determined.

(2)
The window portion may be made of a transparent member.

  In this case, since a part of the flange portion of the inner cylinder is made of a transparent member, the flange portion of the outer cylinder can be easily visually recognized. Specifically, at the time of locking, a portion colored on the flange portion of the outer cylinder can be visually recognized through the transparent member of the inner cylinder.

(3)
The window part may consist of a notch part.

  In this case, since a part of the flange portion of the inner cylinder is cut away, the flange portion of the outer cylinder can be easily visually recognized. Specifically, at the time of locking, a portion colored on the flange portion of the outer cylinder can be visually recognized through the notch portion of the inner cylinder.

(4)
The flange portion of the inner cylinder may be formed of at least one of an annular shape, an elliptical shape, and a rectangular shape.

  In this case, the flange portion can have various shapes. That is, in the case of the conventional structure, since the flange portion of the inner cylinder is fitted to the flange portion of the outer cylinder, the flange portion of the inner cylinder needs to be annular from the structure in which the key is inserted and rotated. there were. However, in the structure of the present invention, the structure that fits the flange part of the outer cylinder is not adopted, and the structure of the size that hides the flange part of the outer cylinder along the extending direction of the keyhole is adopted. The range of selection of the shape of the flange portion can be widened.

(5)
The flange portion of the inner cylinder may cover and hide a part of the peripheral surface of the flange portion of the outer cylinder.

  In this case, since the flange portion of the inner cylinder covers part of the peripheral surface of the flange portion of the outer cylinder, the crime prevention function can be enhanced, the area of the display portion can be increased, and the display portion is recognized. The possible viewing angle can be expanded.

(6)
The inner cylinder and the outer cylinder may be provided for furniture.

  The inner cylinder and the outer cylinder are provided for furniture and can realize a crime prevention function and privacy protection with a simple structure.

(7)
The periphery of the flange portion may be chamfered.

  In this case, since the flange portion is chamfered, it is possible to prevent catching when the key is rotated.

  According to the present invention, it is possible to enlarge the display unit and facilitate recognition of the opening / closing information.

The schematic diagram which shows an example of the locking device which concerns on 1st Embodiment concerning this invention. Typical sectional drawing which shows the internal structure of the locking device which concerns on 1st Embodiment. Typical front view which shows the state at the time of rotating the locking device shown in FIG. The schematic diagram which shows an example of the locking device which concerns on 2nd Embodiment. Typical sectional drawing which shows the internal structure of the locking device which concerns on 2nd Embodiment. Typical front view which shows the state at the time of rotating the locking device shown in FIG. The schematic diagram which shows an example of the locking device which concerns on 3rd Embodiment. The schematic diagram which shows an example of the locking device which concerns on 4th Embodiment. Typical sectional drawing which shows the internal structure of the locking device which concerns on 4th Embodiment. Typical front view which shows the state at the time of rotating the locking device shown in FIG. The schematic diagram which shows an example of the locking device which concerns on 5th Embodiment Typical sectional drawing which shows the internal structure of the locking device which concerns on 5th Embodiment. Typical front view which shows the state at the time of rotating the locking device shown in FIG.

  Embodiments according to the present invention will be described below with reference to the drawings. In the present embodiment, the locking devices according to the first to fifth embodiments will be described with specific examples.

(First embodiment)
FIG. 1 is a schematic diagram showing an example of a locking device 100 according to the first embodiment of the present invention, and FIG. 2 is a schematic cross-section showing an internal structure of the locking device 100 according to the first embodiment. FIG. FIG. 1A shows the front surface of the locking device 100, and FIG. 1B shows the side surface of the locking device 100.

  As shown in FIGS. 1 and 2, the locking device 100 mainly includes an inner cylinder 200 and an outer cylinder 300. The inner cylinder 200 is provided so as to be fitted inside the outer cylinder 300, and is formed so that the flange portion 301 of the outer cylinder 300 contacts the flange portion 201 of the inner cylinder 200.

  As shown in FIG. 2, the inner cylinder 200 is provided with a key mechanism 210. The key mechanism 210 is a mechanism that can be unlocked and locked by inserting a key (not shown) into the key hole 220 of the inner cylinder 200 and rotating it in the direction of arrow R (see FIG. 3).

  As shown in FIGS. 1 and 2, the flange portion 201 of the inner cylinder 200 has an outer peripheral portion having the same diameter as the flange portion 301 of the outer cylinder 300. Further, the flange portion 201 of the inner cylinder 200 has a notch portion 202.

  In addition, a fixing member 230 larger than the outer cylinder 300 is provided in the opposite direction to the key hole 220 of the inner cylinder 200 so that the inner cylinder 200 of the locking device 100 does not come out of the outer cylinder 300. Thereby, it is possible to prevent the locking device 100 from being broken by extracting the inner tube 200 from the outer tube 300.

  FIG. 3 is a schematic front view showing a state when the locking device 100 shown in FIG. 1 is rotated.

First, as shown in FIG. 1, the flange part 301 of the outer cylinder 300 is provided with a display part 303, and the display part 303 (FIG. 1 (a) hatched part) is provided with a red display.
Further, as shown in FIG. 3, no red display is provided on the portion 304 other than the display portion 303 of the flange portion 301 of the outer cylinder 300.

  As a result, as shown in FIG. 3, when the inner cylinder 200 is rotated in the direction of the arrow R, that is, when the locking device 100 is unlocked, the region 304 is located at the region corresponding to the notch 202. Is displayed, and when the inner cylinder 200 is rotated in the direction opposite to the direction of the arrow R, that is, when the locking device 100 is locked, the display unit 303 is displayed at a portion corresponding to the notch 202. Is done.

In this case, since the flange portion 201 of the inner cylinder 200 and the flange portion 301 of the outer cylinder 300 have the same diameter, the area of the display portion 303 can be increased.
That is, in the conventional locking device, the structure in which the flange portion of the inner cylinder is fitted to the flange portion of the outer cylinder is employed for crime prevention. In this case, the flange portion of the outer cylinder and the flange portion of the inner cylinder are employed. The area overlapping with the notch is reduced, and the visibility of the display unit is lowered. In particular, it may not be visible depending on the elderly and the arrangement of the locking device.
On the other hand, in the locking device 100 according to the present embodiment, the area of the display unit 303 can be increased. Therefore, the recognition of the opening / closing information can be facilitated.

(Second Embodiment)
Hereinafter, the second embodiment will be described. FIG. 4 is a schematic view showing an example of the locking device 100a according to the second embodiment, and FIG. 5 is a schematic cross-sectional view showing the internal structure of the locking device 100a according to the second embodiment. Fig.4 (a) shows the front surface of the locking device 100a, and FIG.4 (b) shows the side surface of the locking device 100a.

  4 and 5 is different from the locking device 100 in that an inner cylinder 200a is provided instead of the inner cylinder 200.

  As shown in FIGS. 4 and 5, the inner cylinder 200 a is provided with an L-shaped flange portion 205 instead of the flat flange portion 201 of the inner cylinder 200. Accordingly, a notch 202a is provided instead of the notch 202. Further, a display unit 303 a is provided instead of the display unit 303.

  Specifically, the flange part 205 of the inner cylinder 200 a has a shape that encloses the flange part 301 of the outer cylinder 300, and the notch part 202 a is provided with a notch to a part that encloses the flange part 301. Furthermore, the display part 303a is provided on both the front side (see FIG. 4A) and the side part (circumferential surface side shown in FIG. 4B) of the flange part 301 of the outer cylinder 300.

  Next, FIG. 6 is a schematic front view showing a state when the locking device 100a shown in FIG. 4 is rotated.

First, as shown in FIG. 4, the flange part 301 of the outer cylinder 300 is provided with a display part 303a, and the display part 303a (FIG. 4 (a) hatched part) is provided with a red display.
Further, as shown in FIG. 6, no red display is provided on the portion 304 other than the display portion 303 a of the flange portion 301 of the outer cylinder 300.

  As a result, as shown in FIG. 6, when the inner cylinder 200 a is rotated in the direction of the arrow R, that is, when the locking device 100 a is unlocked, a region 304 is formed at a portion corresponding to the notch portion 202. Is displayed, and when the inner cylinder 200a is rotated in the direction opposite to the direction of the arrow R, that is, when the locking device 100a is locked, the display unit 303a is displayed at a portion corresponding to the notch 202a. Is done.

  In this case, since the flange portion 205 of the inner cylinder 200a encloses the flange portion 301 of the outer cylinder 300, the display portion 303a can be recognized not only from the front but also from the side (FIG. 4B). )reference). As a result, in furniture such as desks, even when the locking position of the locking device 100a is below, the operator can check the display unit 303a from the side and determine locking or unlocking.

(Third embodiment)
Hereinafter, the third embodiment will be described. FIG. 7 is a schematic diagram illustrating an example of the locking device 100b according to the third embodiment. FIG. 7A shows the front of the locking device 100b, and FIG. 7B shows the side of the locking device 100b.

  The locking device 100b shown in FIG. 7 is different from the locking devices 100 and 100a in that an inner cylinder 200b is provided instead of the inner cylinders 200 and 200a.

  The inner cylinder 200b of the locking device 100b shown in FIG. 7 is that a transparent member 204 is provided instead of the notch 202 of the inner cylinder 200. Thereby, the display of the display part 303 of the outer cylinder 300 can be visually recognized by rotating the inner cylinder 200b.

  Moreover, you may provide a transparent part instead of the notch part 202a of the flange part 205 like the locking device 100a which concerns on 2nd Embodiment.

(Fourth embodiment)
Hereinafter, the fourth embodiment will be described. FIG. 8 is a schematic diagram illustrating an example of the locking device 100c according to the fourth embodiment, and FIG. 9 is a schematic cross-sectional view illustrating the internal structure of the locking device 100c according to the fourth embodiment. Fig.8 (a) shows the front surface of the locking device 100c, and FIG.8 (b) shows the side surface of the locking device 100c.

  The locking device 100c shown in FIGS. 8 and 9 is different from the locking device 100 in that instead of the circular flange portion 201 and the flange portion 301 of the locking device 100, an elliptical flange portion 201c and a flange portion 301c are provided. Is a point.

  As shown in FIGS. 8 and 9, the flange portion 201c of the inner cylinder 200c and the flange portion 301c of the outer cylinder 300c mainly have the same elliptical diameter, and the notch portion 202c is provided in the flange portion 201c. ing. Further, a display unit 303 c is provided instead of the display unit 303.

  FIG. 10 is a schematic front view showing a state when the locking device 100c shown in FIG. 8 is rotated.

First, as shown in FIG. 8, the flange portion 301c of the outer cylinder 300c is provided with a display portion 303c, and the display portion 303c (FIG. 8 (a) hatched portion) is provided with a red display.
Moreover, as shown in FIG. 10, red display is not provided in parts 304 other than the display part 303c of the flange part 301c of the outer cylinder 300c.

  As a result, as shown in FIG. 10, when the inner cylinder 200c is rotated 180 degrees in the direction of the arrow R, that is, when the locking device 100c is unlocked, a portion corresponding to the notch 202c is formed. When the part 304 is displayed and the inner cylinder 200c is rotated 180 degrees in the direction opposite to the direction of the arrow R, that is, when the locking device 100c is locked, the part 304 is displayed on the part corresponding to the notch 202c. The part 303c is displayed.

(Fifth embodiment)
Hereinafter, the fifth embodiment will be described. FIG. 11 is a schematic view showing an example of the locking device 100d according to the fifth embodiment, and FIG. 12 is a schematic cross-sectional view showing the internal structure of the locking device 100d according to the fifth embodiment. FIG. 11A shows the front of the locking device 100d, and FIG. 11B shows the side of the locking device 100d.

  The locking device 100d shown in FIGS. 11 and 12 is different from the locking device 100 in that a flange portion 201d made of a rectangle and a flange portion 301d made of a rectangle are provided instead of the flange portion 201 made of a circle and the flange portion 301 of the locking device 100. It is.

  As shown in FIGS. 11 and 12, the flange portion 201d of the inner cylinder 200d and the flange portion 301d of the outer cylinder 300d are mainly formed in a rectangular shape, and the notch portion 202d is provided in the flange portion 201d. Yes. Further, a display unit 303 d is provided instead of the display unit 303.

  FIG. 13 is a schematic front view showing a state when the locking device 100d shown in FIG. 11 is rotated.

First, as shown in FIG. 13, the flange portion 301d of the outer cylinder 300d is provided with a display portion 303d, and the display portion 303d (FIG. 11 (a) hatched portion) is provided with a red display.
Further, as shown in FIG. 13, no red display is provided on the portion 304 other than the display portion 303 d of the flange portion 301 d of the outer cylinder 300 d.

  As a result, as shown in FIG. 13, when the inner cylinder 200c is rotated 90 degrees in the direction of the arrow R, that is, when the locking device 100d is unlocked, the portion corresponding to the notch portion 202d is formed. When the part 304 is displayed and the inner cylinder 200c is turned 90 degrees in the direction opposite to the direction of the arrow R, that is, when the locking device 100d is locked, the part 304 is displayed on the part corresponding to the notch 202d. The part 303d is displayed.

  As described above, the locking devices 100c and 100d according to the fourth and fifth embodiments are not limited to a circular shape, and various shapes can be adopted. Since the flange portion 301 of the cylinder 300 has the same diameter, the areas of the display portions 303c and 303d can be increased.

In the above embodiment, the fixing member 230 is provided at the end of the inner cylinder 200. However, the present invention is not limited to this, and a screw fastening mechanism may be provided at the end of the inner cylinder 200. An insertion / removal prevention mechanism may be provided.
Furthermore, although the case where the display portions 303 to 303d are provided at one place has been described, the present invention is not limited to this, and a plurality of places may be provided together with the notch portions. Instead of degrees, any other angle may be used.

  Furthermore, in the second embodiment, by providing the flange portion of the inner cylinder so as not to be buffered with the flange portion of the outer cylinder, the elliptical and rectangular flange portions 201 according to the fourth and fifth embodiments are provided. May be provided.

  As described above, in the locking devices 100a to 100d according to the present embodiment, the display of the display units 303 to 304 can be enlarged. That is, since the structure in which the flange portion 201 of the inner cylinder 200 is fitted to the flange portion 301 of the outer cylinder 300 is not adopted, the flange portion 201 of the inner cylinder 200 can be enlarged and compared with the case of fitting. About 3 times as many windows can be formed. As a result, locking and unlocking of the locking device can be easily determined.

  Moreover, the display part 303 and the site | part 304 can be confirmed easily by comprising the notch part 202 and the transparent member 204. FIG.

  Furthermore, the locking and locking of the locking device 100 can be confirmed from an oblique direction by adopting a configuration that encloses the flange 301 as in the flange 205 according to the second embodiment.

  In the locking device 100 according to the present invention, the key hole 220 corresponds to the key hole, the locking devices 100 to 100d correspond to the locking device, and the flange portions 201, 205, 201b, 201c, and 201d of the inner cylinder are the inner cylinder. Corresponding to the flange portion, the inner cylinders 200 to 200d correspond to the inner cylinder, the flange portions 301, 301b, 301c and 301d of the outer cylinder correspond to the flange portions of the outer cylinder, and the outer cylinders 300, 300c and 300d Corresponding to the outer cylinder, the relationship between the flange portion 201 and the flange portion 301 and the relationship between the flange portion 205 and the flange portion 301 correspond to the size of the cover, and the cutout portions 202 to 202d and the transparent member 204 are windows. It corresponds to a part, a transparent member, and a notch.

  A preferred embodiment of the present invention is as described above, but the present invention is not limited thereto. It will be understood that various other embodiments may be made without departing from the spirit and scope of the invention. Furthermore, in this embodiment, although the effect | action and effect by the structure of this invention are described, these effect | actions and effects are examples and do not limit this invention.

100, ..., 100d Locking device 201, 205, 201b, 201c, 201d Inner cylinder flange 200, ..., 200d Inner cylinder 202, ..., 202d Notch 204 Transparent member 220 Key hole 300, 300c, 300d Outer cylinder 301, 301b, 301c, 301d Flange of outer cylinder

Claims (4)

A locking device that locks and unlocks by inserting a key into a keyhole and turning,
An inner cylinder having a flange portion formed of at least one of an annular shape, an elliptical shape, and a rectangular shape on one end side, and the keyhole formed on the one end side;
An outer cylinder having a flange portion and holding at least a part of the inner cylinder,
The flange portion of the inner cylinder has a size that hides at least the flange portion of the outer cylinder along the extending direction of the key hole, and a locking device in which a window portion is provided in a part of the flange portion of the inner cylinder . The locking device according to claim 1, wherein the window portion is made of a transparent member.
The locking device according to claim 1, wherein the window portion includes a cutout portion.
The locking device according to any one of claims 1 to 3 , wherein the flange portion of the inner cylinder includes a mechanism that covers a part of a peripheral surface of the flange portion of the outer cylinder.