Decorative cover for cylinder lock

Abstract

To provide a decorative cover having an easy-to-handle structure that exhibits a basic crime prevention function by covering a cylinder lock and also exhibits a design function and utility function. [Solution] The decorative cover 1 is a one-piece molded plastic product in which a hollow cover body 5 that covers the cylinder lock exposed on the outside of the front door and a hanging hook 6 that can hang an item are integrally formed. The cover body 5 has an exterior surface 5a that exhibits a design effect, and is structured to be removably attached and fixed to the cylinder lock, and the hanging hook 6 is in the form of a hook recess formed on the top of the cover body 5.

Description

[Technical field]

[0001] The present invention relates to a decorative cover for a cylinder lock, and more specifically, to a decorative cover technology that combines anti-theft function, design function, and utility function by covering a cylinder lock attached to an exterior door such as a front door. [Background technology]

[0002] Conventionally, exterior doors such as front doors that are connected to the exterior of a house are provided with locks such as cylinder locks. For example, a cylinder lock installed on a front door has a cylinder with a keyhole that protrudes from the door surface to the outside and is connected to a locking / unlocking mechanism inside the door. By inserting a handheld key into the keyhole of the cylinder and rotating it, the locking / unlocking mechanism is activated to lock or unlock the front door.

[0003] However, since cylinder locks are installed on exterior doors and exposed to the outdoors, they are susceptible to fraudulent activities such as unauthorized unlocking by burglars and other intruders and unauthorized mischief. In order to prevent such fraudulent activities, various security covers that cover the cylinder keyhole have been developed (see, for example, Patent Documents 1 and 2, etc.).

[0004] The use of these burglary prevention covers can provide an effective anti-theft function that looks good, and can also make it difficult to actually perform illegal acts on the keyhole. Incidentally, it has been reported that burglars and other intruders tend to give up on unlocking if it takes more than 10 minutes to do so. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2002-97821 A [Patent Document 2] JP 2011-202485 A Summary of the Invention [Problem to be solved by the invention]

[0006] The present invention is a further development of conventional anti-theft covers, and its purpose is to provide a decorative cover that has an easy-to-use structure that not only provides the basic anti-theft function of a anti-theft cover by covering a cylinder lock, but also provides decorative and utility functions. [Means for solving the problem]

[0007] In order to achieve the above-mentioned objective, the decorative cover for a cylinder lock of the present invention is a decorative cover that covers a cylinder lock installed on an outdoor door such as a front door, and is a one-piece molded plastic product in which a hollow cover body that covers the cylinder lock exposed to the outside of the outdoor door and a hanging hook capable of hanging an item are integrally formed, the cover body having an exterior surface that exhibits a design effect and is structured to be removably attached and fixed to the cylinder lock, and the hanging hook is in the form of a hanging recess formed on the top of the cover body.

[0008] In a preferred embodiment, the cover body has a flat rear wall that conforms to the door surface to which the cylinder lock is attached, and a cylinder lock insertion hole for inserting the cylinder lock is provided in this rear wall, and the upper edge of this cylinder lock insertion hole is structured to be suspended from above and engaged between the cylinder collar of the cylinder lock and the door surface.

[0009] In a preferred embodiment, a permanent magnet that is magnetically attracted to the door surface is provided above and / or below the cylinder lock insertion hole in the rear wall. Effect of the Invention

[0010] The decorative cover for the cylinder lock of the present invention is a one-piece molded plastic product in which a hollow cover body that covers the cylinder lock exposed on the outside of an exterior door and a hanging hook capable of hanging an item are integrally formed, and the cover body has an exterior surface that exhibits a design effect and is structured to be removably attached and fixed to the cylinder lock, and the hanging hook is in the form of a hanging recess formed on the top of the cover body, thereby obtaining the unique effects listed below, and by covering the cylinder lock, it is possible to provide a decorative cover with an easy-to-handle structure that not only exhibits the basic anti-theft function of a theft cover, but also exhibits design and utility functions.

[0011] (1) The decorative cover of the present invention is a one-piece molded plastic product consisting of a hollow cover body that covers the cylinder lock exposed on the outside of an exterior door and a hanging hook on which an item can be hung, which are integrally formed. Therefore, it effectively prevents direct fraudulent acts such as picking the keyhole, and also effectively deters fraudulent acts by visually indicating the presence of the decorative cover, thereby suppressing the intention to carry out fraudulent acts.

[0012] (2) The cover body has an exterior surface that exhibits a design effect. For example, by designing the exterior shape of the cover body itself or by applying a design color or pattern to the surface of the cover body, the cover body can function not only as a security cover for a cylinder lock, but also as a decorative accessory for an exterior door.

[0013] In addition, since the cover body has an exterior surface that provides a design effect, the presence of the decorative cover is visually eye-catching and more clearly visible, and the fraud prevention function of preventing the intention to carry out the above-mentioned fraudulent acts is more effectively exerted.

[0014] (3) The cover body is an integrally molded product with a hanging hook on which items can be hung. In addition to its basic function as a security cover for a cylinder lock, the cover can also perform a utility function of temporarily hanging various items.

[0015] (4) The cover body is structured so as to be removably attached and fixed to the cylinder lock, with a cylinder lock insertion hole for inserting the cylinder lock being provided in the rear wall of the cover body, and the upper edge portion of this cylinder lock insertion hole being suspended from above and engaged between the cylinder collar of the cylinder lock and the door surface, and a permanent magnet which is magnetically attracted to the door surface is provided at the lower position of the cylinder lock insertion hole, thereby enabling the cylinder lock to be attached and removed with simple operations and facilitating handling.

[0016] (5) Since the upper edge portion of the cylinder lock insertion hole in the cover body is designed to be suspended from above between the cylinder collar of the cylinder lock and the door surface, the cover body can also function as a security spacer to prevent so-called “bypass unlocking.”

[0017] In other words, the cylinder collar of the cylinder lock is structurally designed so that, when it is pulled toward the outdoors, it moves along the cylinder of the cylinder lock toward the outdoors and elastically separates from the door surface, creating a gap between the door surface and the cylinder collar. This gap makes it possible to perform unauthorized unlocking using a special tool, i.e., "bypass unlocking." The rear wall of the cover body fits into and engages the gap, acting as a spacer to fill the gap, thereby making it possible to effectively prevent bypass unlocking. [Brief description of the drawings]

[0018] [Figure 1] 1A and 1B show a decorative cover for a cylinder lock according to one embodiment of the present invention, and FIG. 1A is a perspective view from the front side, and FIG. 1B is a perspective view from the rear side. [Diagram 2]FIG. 2(a) is a front view of the decorative cover of the cylinder lock, and FIG. 2(b) is a rear view of the decorative cover. [Diagram 3] 3A and 3B show a state in which the decorative cover is attached to cover a cylinder lock of a door, with FIG. 3A being a side cross-sectional view and FIG. 3B being a plan cross-sectional view. [Figure 4] 4(a) to 4(c) are side cross-sectional views showing the procedure for attaching the decorative cover to cover a cylinder lock of a door. [Diagram 5] 1 is a front view showing the decorative cover attached to cover the cylinder lock of a front door. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. In the drawings, the same reference numerals denote the same components or elements.

[0020] The decorative cover for the cylinder lock of the present invention is shown in Figures 1 to 5. Specifically, this decorative cover 1 is intended to cover a cylinder lock 3 installed on a front door (outdoor door) 2 as shown in Figure 5, and is an integrally molded plastic product in which a hollow cover body 5 and a hanging hook 6 are formed integrally.

[0021] The front door 2 is attached to a door frame 7 provided at the entrance of the house via hinges 8, 8 so as to be able to be opened and closed toward the outdoors, and an opening / closing knob 9 and the cylinder lock 3 are provided on the door end side.

[0022] As shown in Figure 3, the cylinder lock 3 comprises a cylindrical cylinder 10 with a keyhole that protrudes from the door surface 2a to the outside and is connected to a locking / unlocking mechanism inside the front door 2 (not shown in detail). By inserting a handheld key into the keyhole of the cylinder 10 and rotating the cylinder 10, the locking / unlocking mechanism is activated to lock or unlock the front door 2.

[0023] A cylinder collar 11 is provided on the outer periphery of the cylinder 10 to cover the cylinder 10. The cylinder collar 11 is resiliently biased against the door surface 2a by the spring force of an internal spring (not shown), and the base end 11a of the cylinder collar 11 is abutted against and engaged with the door surface 2a. When the cylinder collar 11 is pulled outward against the spring force of the internal spring, the cylinder collar 11 slides outward on the cylinder 10, creating a gap between the base end 11a of the cylinder collar 11 and the door surface 2a. The decorative cover 1 of the illustrated embodiment is attached and fixed to the entrance door 2 by utilizing the installation structure of the cylinder collar 11, as described later.

[0024] The cover body 5 of the decorative cover 1 is in the form of a hollow box case that covers the cylinder lock 3, and the size of this hollow cover body 5 is slightly larger than the outer circumferential dimension of the cylinder lock 3 as shown in Fig. 3, and the thickness dimension is set to have shape retention that maintains the illustrated shapes of the integrally molded cover body 5 and hanging hook 6. Specifically, the thickness dimension is set to a degree that allows the original illustrated shapes of the decorative cover 1 (cover body 5, hanging hook 6) to be stably maintained without deformation even if an article of a predetermined weight or less is hung from the hanging hook 6 when the decorative cover 1 is attached and fixed to the door surface 2a of the entrance door 2 (Figs. 3 and 4).

[0025] In the illustrated embodiment, the thickness is set to a level that allows the bag to maintain sufficient shape even when a relatively heavy object is hung from the hanging hook 6, and is designed to be able to hang a relatively heavy object, such as a plastic bag containing two PET bottles filled with soft drinks.

[0026] The exterior surface 5a of the cover body 5 is formed to have an exterior shape as shown in the figure, and is configured to exhibit a predetermined design effect by being attached and fixed to the entrance door 2.

[0027] The specific mounting structure of the cover body 5 is such that it is removably mounted and fixed to the cylinder lock 3 of the entrance door 2.

[0028] The cover body 5 of the illustrated embodiment specifically has a flat rear wall 12 that conforms to the door surface 2a to which the cylinder lock 3 is attached, and this rear wall 12 is provided with a cylinder lock insertion hole 13 for inserting the cylinder collar 11 (and cylinder 10) of the cylinder lock 3.

[0029] The cylinder lock insertion hole 13 is in the form of a circular hole through which the cylinder collar 11 of the cylinder 10 can be inserted, and the arc-shaped upper edge portion 13a of the cylinder lock insertion hole 13 is structured to be suspended from above and engaged between the cylinder collar 11 and the door surface 2a of the front door 2, as shown in Figures 3(a) and 4(b) and (c). This will be described in detail later.

[0030] In addition, a permanent magnet 15 that is magnetically attracted to the door surface 2a is provided below the cylinder lock insertion hole 13 in the rear wall 12, taking advantage of the fact that the front door 2 is made of iron. For example, a neodymium magnet with strong adhesive power is preferably used as the permanent magnet 15. In this embodiment, the permanent magnet 15 is specifically in the form of a thin rectangular magnetic sheet.

[0031] The hanging hook 6 is capable of hanging an object, and specifically, is formed integrally with the top of the cover body 5, and as shown in the figure, has an arc-shaped cross section and a horizontally extending bottom recessed portion, allowing for a shape and structure that allows for temporary hanging of an umbrella, a shopping bag containing shopping items, a parcel delivered by a parcel service to be left at the door, a notice board, etc.

[0032] Then, referring to Figure 4, the cover body 5 is pushed toward the door surface 2a by aligning the cylinder lock insertion hole 13 in the rear wall 12 with the cylinder lock 3 of the front door 2, and the cylinder lock 3 having the cylinder collar 11 is inserted into the cover body 5 through the cylinder lock insertion hole 13, while the cover body 5 approaches the door surface 2a (Figure 4(a)).

[0033] Next, the arcuate upper edge portion 13a of the cylinder lock insertion hole 13 is placed against the abutment boundary between the base end 11a of the cylinder collar 11 and the door surface 2a, and the cover body 5 is pressed down along the door surface 2a, so that the arcuate upper edge portion 13a is inserted from above between the base end 11a of the cylinder collar 11 and the door surface 2a (at this time, the cylinder collar 11 slides slightly outward against the spring force of the internal spring), and the upper edge portion 13a of the cylinder lock insertion hole 13 abuts and engages from above against the surface of the cylinder 10 between the base end 11a of the cylinder collar 11 and the door surface 2a, thereby supporting the cover body 5 in a suspended state above the cylinder 10 (Figure 4(b)).

[0034] Finally, by pressing the lower part of the cover body 5 against the door surface 2a, the permanent magnets 15 on the back wall 12 are magnetically attracted to the door surface 2a, and the entire back wall 12 is supported and fixed along the door surface 2a (FIG. 4(c)). As a result, the decorative cover 1 is attached and fixed to the front door 2 with the cylinder lock 3 entirely covered.

[0035] Conversely, from the attached and fixed state of the decorative cover 1, the lower part of the cover body 5 is pulled away from the door surface 2a against the magnetic attraction force of the permanent magnet 15 while the cover body 5 is lifted upward, thereby removing the decorative cover 1 from the front door 2.

[0036] Therefore, by attaching and fixing the decorative cover 1 constructed as described above to the front door 2 in the manner described above, it completely covers the entire cylinder lock 3, as shown in Figure 5, and functions as a decorative item for the front door 2.

[0037] In addition, when in the above-mentioned attached and fixed state, the decorative cover 1 functions as a hanging means for temporarily hanging baggage, parcels left by a parcel service, etc., from the hanging hook 6 provided at the top of the cover body 5.

[0038] As described above in detail, the decorative cover 1 of this embodiment provides the unique effects listed below.

[0039] (a) The decorative cover 1 of this embodiment is a one-piece plastic molded product in which a hollow cover body 5 that covers the cylinder lock 3 exposed on the outside of the front door 2 and a hanging hook 6 on which an item can be hung are integrally formed. Therefore, it effectively prevents direct fraudulent acts such as picking the keyhole of the cylinder 10, and also effectively deters fraudulent acts by visually indicating the presence of the decorative cover 1 and suppressing the intention to carry out fraudulent acts.

[0040] (b) The cover body 5 has an exterior surface 5a that exhibits a design effect. For example, by designing the exterior shape of the cover body 5 itself or by applying a design color or pattern to the surface of the cover body 5, the cover body 5 can function not only as a security cover for the cylinder lock 3 but also as a decorative accessory for the front door 2.

[0041] In addition, since the cover body 5 has an exterior surface 5a that provides a design effect, the presence of the decorative cover 1 is visually noticeable and more clearly visible, and the fraud prevention function of preventing the intention to carry out the above-mentioned fraudulent acts is more effectively exerted.

[0042] (c) The cover body 5 is an integrally molded product in which the hanging hook 6, on which an item can be hung, is integrally formed. In addition to its basic function as a security cover for the cylinder lock 3, it can also perform a utility function of temporarily hanging various items.

[0043] (d) The cover body 5 is structured so as to be removably attached and fixed to the cylinder lock 3, with a cylinder lock insertion hole 13 for inserting the cylinder lock 3 being provided in the rear wall 12 of the cover body 5, and the upper edge portion 13a of this cylinder lock insertion hole 13 being suspended from above and engaged between the cylinder collar 11 of the cylinder lock 3 and the door surface 2a, and a permanent magnet 15 which is magnetically attracted to the door surface 2a is provided at the lower position of the cylinder lock insertion hole 13, thereby enabling the cylinder lock 3 to be attached and removed with simple operations and making it easy to handle.

[0044] (e) The upper edge portion 13a of the cylinder lock insertion hole 13 in the cover body 5 is structured to be suspended from above and engaged between the cylinder collar 11 of the cylinder 10 and the door surface 2a, so that the cover body 5 can also function as a security spacer to prevent so-called "bypass unlocking."

[0045] In other words, the cylinder collar 11 covering the cylinder 10 is structurally configured so that, when pulled toward the outside, it elastically separates from the door surface 2a, creating a gap between the cylinder collar 11 and the door surface 2a. This gap allows unauthorized unlocking through the use of a special tool, i.e., "bypass unlocking." The rear wall 12 of the cover body 5 fits into and engages the gap, acting as a spacer to fill the gap, thereby making it possible to effectively prevent bypass unlocking.

[0046] It should be noted that the above-described embodiments are merely preferred embodiments of the present invention, and the present invention is not limited to these embodiments, and various design modifications are possible within the scope of the present invention.

[0047] For example, the specific structure of each part constituting the decorative cover 1 is not limited to the embodiment shown in the drawings as long as it has a similar function, and other structures may be adopted. As an example, the following modifications are possible.

[0048] (1) The exterior surface 5a of the cover body 5 is not limited to the one shown in the figure, and may be redesigned to any other exterior surface that provides a similar design effect (an exterior shape, color, pattern, etc. with an aesthetically ingenious design).

[0049] (2) The specific shape and configuration of the hanging hook 6 is not limited to the illustrated embodiment, and various modifications are possible, so long as it is possible to hang an article.

[0050] (3) The specific shape of the permanent magnet 15 provided on the rear wall 12 of the cover body 5 is not limited to a rectangular shape as in the illustrated embodiment, and various arbitrary shapes can be adopted depending on the purpose. The size of the permanent magnet 15 is also not limited to a lower position of the cylinder lock insertion hole 13 as in the illustrated embodiment, and it can be set to any position and any size depending on the purpose, such as an upper position of the cylinder lock insertion hole, both upper and lower positions, or even extending widely around the cylinder lock insertion hole 13. [Explanation of symbols]

[0051] 1 Makeup cover 2. Entrance door (exterior door) 2a Front door surface 3 Cylinder lock 5 Cover body 5a External surface of cover body 6 Hanging hook 10 Cylinders 11 Cylinder collar 12 Rear wall of cover body 13 Cylinder lock insertion hole 13a Upper edge of cylinder lock insertion hole 15 Permanent magnets

Claims

1. A decorative cover for covering a cylinder lock installed on an exterior door such as a front door, The exterior door is fitted with a cover that is made of a plastic material and has a locking mechanism that locks the exterior door. The cover body has an exterior surface that exhibits a design effect and is structured to be removably attached and fixed to the cylinder lock; The hanging hook is in the form of a hook recess formed in the top of the cover body. A decorative cover for a cylinder lock.

2. The cover body has a flat rear wall along the door surface to which the cylinder lock is attached, and the rear wall is provided with a cylinder lock insertion hole into which the cylinder lock is inserted, The upper edge of the cylinder lock insertion hole is structured so that it is inserted and engaged from above between the cylinder collar of the cylinder lock and the door surface in a suspended manner.

2. The decorative cover for a cylinder lock according to claim 1.

3. A permanent magnet that is magnetically attracted to the door surface is provided above and / or below the cylinder lock insertion hole in the rear wall.

3. The decorative cover for a cylinder lock according to claim 2.

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