Installation structure of cylinder lock for front door and front door

Abstract

To provide a cylinder lock mounting structure and a cylinder lock mounting method which can be improved in aesthetic appearance.SOLUTION: A mounting structure of a cylinder lock 5, includes: the cylinder lock 5 having a cylinder section 51, a box lock section 53, and a thumb turn section 55; and a cylinder lock installation section 3 to which the cylinder lock 5 can be mounted, wherein the cylinder section 51 has a cylindrical body section 511, and a cylinder tip section 512 that protrudes from the body section 511 in an axial direction of the body section 511 and is smaller than the diameter of the body section 511, an indoor opening section 311 is formed larger than the diameter of the body section 511, and an outdoor opening section 321 is smaller than the diameter of the body section 511 and large enough to allow placement of the cylinder tip section 512.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] The present disclosure relates to an attachment structure for a cylinder lock and a method of attaching a cylinder lock.

Background Art

[0002] Conventionally, an attachment structure for a cylinder lock has been known (see, for example, Patent Document 1). The cylinder lock is attached to a door body by the attachment structure of the cylinder lock. The cylinder lock includes a box lock having a locking mechanism, a cylinder portion, and a thumb turn portion. The door body is capable of attaching the cylinder lock, and includes an indoor side plate portion formed with an indoor side opening, an outdoor side plate portion disposed opposite to the indoor side plate portion and formed with an outdoor side opening, and a side plate portion connecting an end portion of the indoor side plate portion and an end portion of the outdoor side plate portion and formed with a side opening.

[0003] Conventionally, when attaching a cylinder lock to a door body, after inserting and disposing the box lock into the interior of the door body from the side opening, the thumb turn portion is inserted into the interior of the door body from the indoor side of the indoor side plate portion through the indoor side opening so as to sandwich the box lock in the indoor-outdoor direction, and is disposed on the indoor side of the box lock, and the cylinder portion is inserted into the interior of the door body from the outdoor side of the outdoor side plate portion through the outdoor side opening and is disposed on the outdoor side of the box lock. Thereby, in the indoor-outdoor direction of the door body, the cylinder lock is attached to the door body in a state where the box lock is sandwiched between the cylinder portion and the thumb turn portion.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In the cylinder lock mounting structure described in Patent Document 1, the cylinder portion of the cylinder lock has a large diameter and is positioned to protrude from the exterior side of the door, so there is room for improvement from an aesthetic standpoint. A cylinder lock mounting structure that can improve aesthetics is needed.

[0006] This disclosure aims to provide a mounting structure for a cylinder lock and a mounting method for a cylinder lock that can improve the aesthetic design. [Means for solving the problem]

[0007] This disclosure relates to a cylinder lock capable of locking and unlocking a door, comprising: a cylinder lock having a cylinder portion, a box lock portion, and a thumbturn portion; and a cylinder lock mounting portion to which the cylinder lock can be mounted, comprising: an indoor plate portion having an indoor opening; an outdoor plate portion positioned opposite the indoor plate portion and having an outdoor opening; and a lateral plate portion connecting the indoor plate portion and the outdoor plate portion and having a lateral opening, wherein the cylinder portion has a cylindrical body portion and a cylinder tip portion protruding from the body portion in the axial direction of the body portion and being smaller than the diameter of the body portion, the indoor opening is formed to be larger than the diameter of the body portion, and the outdoor opening is formed to be smaller than the diameter of the body portion and to be large enough to accommodate the cylinder tip portion. [Brief explanation of the drawing]

[0008] [Figure 1] This figure shows a door or window fixture fitted with a cylinder lock according to one embodiment. [Figure 2] This is a perspective view of a door with a cylinder lock installed, as seen from the outside. [Figure 3] This is a perspective view of a door with a cylinder lock installed, as seen from the inside. [Figure 4] This is a cross-sectional view along line AA in Figure 3. [Figure 5] This is an exploded perspective view of the cylinder lock mounting structure as seen from the outside. [Figure 6] This is an exploded perspective view of the cylinder lock mounting structure as seen from the inside. [Figure 7] This is an enlarged cross-sectional view showing the cylinder part attached to the door frame. [Figure 8] This is a perspective view showing the state in which a cylinder tip cover member is attached to the tip of the cylinder part that is mounted on the outdoor side panel. [Figure 9A] This is a diagram illustrating the cylinder assembly process. [Figure 9B] This diagram illustrates the process of installing a box lock. [Figure 9C] This diagram illustrates the thumbturn mounting process and the cylinder cap mounting process. [Modes for carrying out the invention]

[0009] Hereinafter, one embodiment of the present disclosure will be described in detail with reference to the drawings. As shown in Figure 1, the door 1 comprises a frame 2 fixed to the building, a door 3 attached to the frame 2 so as to be openable and closable, an upper cylinder lock device 4 having an upper cylinder lock 5 and an upper lock receiver 6, and a lower cylinder lock device 7 having a lower cylinder lock 8 and a lower lock receiver 9. The door 1 is installed as an entrance to a building. The upper cylinder lock device 4 and the lower cylinder lock device 7 can be used to lock and unlock the door.

[0010] The frame 2 is installed along the four sides of the opening of the building. The frame 2 is framed in a rectangle by an upper frame 21 and a lower frame 22 as horizontal frames, a vertical frame 23 on the hinge side, and a vertical frame 24 on the door edge side. The vertical frame 23 on the door edge side is provided with an upper lock receiving part 6 for the upper cylinder lock device 4 and a lower lock receiving part 9 for the lower cylinder lock device 7.

[0011] The door panel 3 is a hinged door that is suspended inside the frame panel 2 via a hinge 25 fixed to the vertical frame 23 on the hinge side. The door panel 3 is configured to rotate relative to the frame panel 2 around the pivot axis of the hinge 25 provided on the door side, and is installed in a so-called outward-opening configuration, rotating from the closed position toward the outside.

[0012] On the door edge side of the door panel 3, when viewed from the outside, the upper cylinder lock 5, the handle 11, and the lower cylinder lock 8 are arranged in order from top to bottom. The upper cylinder lock 5 and the lower cylinder lock 8 are attached to the door panel 3 by the cylinder lock mounting structure. In this embodiment, the upper cylinder lock device 4 and the lower cylinder lock device 7 have similar configurations, so the configuration of the upper cylinder lock device 4 will be described in detail, and a detailed description of the configuration of the lower cylinder lock device 7 will be omitted.

[0013] As shown in Figure 1, the upper cylinder lock device 4 comprises an upper cylinder lock 5 (cylinder lock) and an upper lock receiver 6. The upper lock receiver 6 is located inside the vertical frame 24 on the door edge side of the frame 2. As shown in Figures 2 and 3, the upper cylinder lock 5 is attached to the door 3 by the cylinder lock mounting structure.

[0014] In this embodiment, the door body 3 constitutes a cylinder lock mounting section to which an upper cylinder lock 5 and a lower cylinder lock 8 can be attached. As shown in Figures 2 to 4, the door body 3 has an indoor side panel 31 with an indoor side opening 311, an outdoor side panel 32 positioned opposite the indoor side panel 31 and with an outdoor side opening 321, a side panel 33 connecting the door-side end of the indoor side panel 31 and the door-side end of the outdoor side panel 32 and having a side opening 331, and a door-side end frame 34 with an end-face opening 341. In this embodiment, the indoor side panel 31 and the outdoor side panel 32 are made of, for example, steel plates.

[0015] As shown in FIGS. 4 to 6, the upper cylinder lock 5 includes a cylinder portion 51, a cylinder tip cover member 52 (cover member), a box lock portion 53, a side plate 54, a thumb turn portion 55, and a temporary fixing portion 56.

[0016] As shown in FIGS. 4 to 6, the cylinder portion 51 has a cylindrical body portion 511 extending in the indoor-outdoor direction of the fitting 1, a cylinder tip portion 512 protruding in the axial direction of the body portion 511 from the axial tip of the body portion 511, and a pair of flange portions 513 provided at the base end of the body portion. The cylinder portion 51 is attached to the indoor side surface of the outdoor side plate portion 32 of the door body 3 in a state where the body portion 511 is disposed inside the door body 3 and the cylinder tip portion 512 is disposed in the outdoor side opening portion 321 of the outdoor side plate portion 32 of the door body 3.

[0017] As shown in FIG. 7, the cylinder tip portion 512 is provided at the outdoor side end of the body portion 511. In the present embodiment, the cylinder tip portion 512 is formed in a disc shape and protrudes from the tip of the body portion 511 by the thickness. The diameter Rc2 (outer diameter) of the cylinder tip portion 512 is formed to be smaller than the diameter Rc1 (outer diameter) of the body portion 511. A keyhole 512a is formed in the cylinder tip portion 512.

[0018] As shown in FIGS. 7 and 8, the cylinder tip portion 512 is disposed inside the outdoor side opening portion 321 of the outdoor side plate portion 32 of the door body 3 in a state where the cylinder portion 51 is attached to the door body 3. The cylinder portion 51 is attached to the door body 3 with a gap S formed between the cylinder tip portion 512 and the outdoor side opening portion 321.

[0019] In the present embodiment, as shown in FIG. 4, the diameter Ra1 of the indoor side opening portion 311 of the indoor side plate portion 31 of the door body 3 is formed to be larger than the diameter Rc1 of the body portion 511 of the cylinder portion 51. Thereby, the cylinder portion 51 can be inserted from the indoor side of the door body 3 through the indoor side opening portion 311 of the indoor side plate portion 31 of the door body 3 between the indoor side plate portion 31 and the outdoor side plate portion 32 of the door body 3.

[0020] Furthermore, the diameter Rc2 of the outdoor opening 321 of the outdoor panel portion 32 of the door body 3 is smaller than the diameter Ra1 of the body portion 511 of the cylinder portion 51, and is formed to a size that allows the cylinder tip portion 512 to be placed. In this embodiment, by making the diameter Rc2 of the cylinder tip portion 512 smaller than the diameter Ra2 of the outdoor opening 321 of the outdoor panel portion 32 of the door body 3, the diameter Rc2 of the outdoor opening 321 is formed to a size that allows the cylinder tip portion 512 to be placed.

[0021] As a result, as shown in Figures 5 and 6, the cylinder portion 51 is inserted into the interior of the door body 3 from the interior side of the interior opening 311 of the interior side panel portion 31 of the door body 3, so that the body portion 511 is positioned inside the door body 3 and the cylinder tip portion 512 is positioned in the exterior opening 321 of the exterior side panel portion 32, and the cylinder portion is attached to the exterior side panel portion 32. In this state, as shown in Figures 7 and 8, the cylinder portion 51 is attached to the door body 3 with an annular gap S formed between the cylinder tip portion 512 and the exterior opening 321.

[0022] As shown in Figure 7, the temporary fixing part 56 temporarily fixes the tip of the body part 511 to the outdoor side plate part 32. The temporary fixing part 56 consists of a magnet part 561 (first magnetic material) provided radially outside the cylinder tip part 512 at the tip of the body part 511 of the cylinder part 51, and a steel plate 562 (second magnetic material) which is made up of a part of the outdoor side plate part 32 of the door body 3 that can be connected to the magnet part 561 by magnetic force. The steel plate 562 is provided integrally with the outdoor side plate part 32.

[0023] The temporary fixing part 56 is used when attaching the cylinder part 51 to the outdoor opening 321 of the outdoor panel part 32. Before permanently fixing the cylinder part 51 to the door body 3, the tip of the cylinder part 51 is connected to the indoor surface of the outdoor panel part 32 of the door body 3 by magnetic force, thereby temporarily fixing the cylinder part 51 to the outdoor panel part 32 so that it does not fall even if you let go of the cylinder part 51.

[0024] As shown in Figures 7 and 8, the cylinder tip cover member 52 is attached to the tip of the cylinder portion 51 so as to cover the gap S between the cylinder tip portion 512 and the outdoor opening 321 of the outdoor plate portion 32 from the outside of the outdoor plate portion 32. The cylinder tip cover member 52 has an annular annular flat portion 521 and an annular annular projection portion 522 that protrudes toward the cylinder portion 51 from the inner peripheral edge of the annular flat portion 521.

[0025] When the cylinder tip cover member 52 is attached to the tip of the cylinder portion 51, the annular projection 522 is positioned in the annular gap S between the cylinder tip portion 512 of the cylinder portion 51 and the outdoor opening 321. The annular planar portion 521 extends radially outward from the outdoor end of the annular projection 522. Therefore, the annular planar portion 521 can cover the boundary between the cylinder tip portion 512 of the cylinder portion 51 and the outdoor opening 321. As a result, the cylinder tip cover member 52 can cover the gap S between the cylinder tip portion 512 and the outdoor opening 321 of the outdoor plate portion 32 from the outside of the outdoor plate portion 32, as shown in Figures 7 and 8.

[0026] As shown in Figures 4 to 6, the box lock portion 53 is inserted between the indoor plate portion 31 and the outdoor plate portion 32 from the side of the side plate portion 33 and the door edge end frame 34, through the side opening 331 and the end opening 341. The box lock portion 53 has a case portion 531 and a hook-shaped deadbolt portion 534. The case portion 531 has a case body 531a and a mounting plate 531b formed on the outer side end of the case body 531a. The case body 531a is placed inside the door body 3 and is formed in the shape of a vertically elongated rectangular parallelepiped.

[0027] As shown in Figures 4 to 6, the case portion 531 has a cylindrical recess on the indoor side 532 and a cylindrical recess on the outdoor side 533. The outdoor end of the thumbturn portion 55 (described later) is positioned in the indoor recess 532. The indoor end of the cylinder portion 51 (described later) is positioned in the outdoor recess 533. The side plate 54 is attached to the door-side end face of the door body 3 so as to cover the mounting plate 531b of the box lock portion 53.

[0028] As shown in Figures 5 and 6, the deadbolt hook portion 534 is positioned to protrude laterally from the side surface of the case portion 531. The deadbolt hook portion 534 is formed in a hook shape with its tip protruding downward when locked. The hook 534a of the deadbolt hook portion 534 can engage with the upper lock receiver portion 6 (see Figure 1). The deadbolt hook portion 534 is configured to be movable between a position where the hook 534a of the deadbolt hook portion 534 protrudes and engages with the upper lock receiver portion 6 to lock it (see Figure 1), and a position where the hook 534a of the deadbolt hook portion 534 is retracted and the engagement of the hook 534a of the deadbolt hook portion 534 with the upper lock receiver portion 6 is released and it is unlocked (not shown).

[0029] As shown in Figures 4 to 6, the thumbturn portion 55 is positioned on the leading edge side of the door body 3, inserted into the interior of the door body 3 from the interior side of the interior opening 311 of the interior panel portion 31 of the door body 3. The thumbturn portion 55 is rotatably mounted relative to the box lock portion 53. Rotation of the thumbturn portion 55 locks and unlocks the deadbolt portion 534.

[0030] As shown in Figures 4 to 6, the thumbturn section 55 includes a thumbturn body 551 and a thumbturn base 552. The thumbturn body 551 includes an operating section 551a and a shaft section 551b extending outward from the outdoor-facing surface of the operating section 551a.

[0031] The operating section 551a is formed in the shape of a short cylinder with the interior side closed, and is configured to be rotatable by human operation. When a person rotates the operating section 551a, the shaft section 551b, which extends in the interior-exterior direction, rotates. As a result, the thumbturn section 55 is rotated by human operation, and the lock can be locked and unlocked via the box lock section 53 and the deadbolt section 534 as the thumbturn section 55 rotates.

[0032] The thumbturn base portion 552 is positioned on the exterior side of the thumbturn body 551. The thumbturn base portion 552 is formed in a cylindrical shape, and the shaft portion 551b of the thumbturn body 551 passes through the inside of the cylinder. The exterior end of the thumbturn base portion 552 is positioned in the interior recess 532 of the case portion 531 of the box lock portion 53, and rotatably supports the thumbturn body 551.

[0033] Next, we will explain how to attach the upper cylinder lock 5 to the door frame 3.

[0034] First, the cylinder part 51 is attached to the door body 3. As shown in Figure 9A, the cylinder part 51 is inserted from the indoor side of the indoor side panel part 31 through the indoor side opening 311, between the indoor side panel part 31 and the outdoor side panel part 32, and as shown in Figure 9B, the cylinder tip part 512 is positioned in the outdoor side opening 321 and attached to the outdoor side panel part 32 (cylinder part attachment step). In this case, the tip of the body part 511 is temporarily fixed to the outdoor side panel part 32 by the temporary fixing part 56 (temporary fixing step).

[0035] In this embodiment, the temporary fixing portion 56 is composed of a magnet portion 561 provided on the radially outer portion of the cylinder tip portion 512 at the tip of the body portion 511 of the cylinder portion 51, and a steel plate 562 made up of a part of the exterior plate portion 32 of the door body 3 that can be connected to the magnet portion 561 by magnetic force. Therefore, the magnet portion 561 provided on the tip of the body portion 511 and the steel plate 562 made up of a part of the exterior plate portion 32 of the door body 3 are connected by magnetic force. As a result, when the cylinder portion 51 is temporarily fixed to the exterior plate portion 32 of the door body 3, it will not fall even if you let go of the cylinder portion 51, thus improving the workability when attaching the cylinder portion 51 to the door body 3.

[0036] Next, after attaching the cylinder portion 51 to the exterior plate portion 32, as shown in Figure 9B, the box lock portion 53 is inserted between the interior plate portion 31 and the exterior plate portion 32 from the side of the side plate portion 33 and the door edge end frame 34, through the side opening 331 and the end opening 341. Then, as shown in Figure 9C, with the interior end of the cylinder portion 51 positioned in the exterior recess 533 of the case portion 531, the box lock portion 53 is positioned on the interior side of the cylinder portion 51 (box lock portion installation process).

[0037] Next, after installing the box lock section 53, as shown in Figure 9C, the thumbturn section 55 is inserted from the indoor side of the indoor panel section 31 through the indoor opening 311 between the indoor panel section 31 and the outdoor panel section 32. Then, by positioning the outdoor end of the thumbturn base section 552 of the thumbturn section 55 in the indoor recess 532 of the case section 531, the thumbturn section 55 is installed on the indoor panel section 31 with the thumbturn section 55 positioned on the indoor side of the box lock section 53 (thumbturn section installation process).

[0038] Furthermore, the cylinder tip cover member 52 is attached from the outside so as to cover the gap S between the cylinder tip 512 and the outdoor opening 321 from the outside of the outdoor plate 32 (cover member attachment step). Also, the side plate 54 is attached to the door-side end face of the door body 3 so as to cover the mounting plate 531b of the box lock portion 53. In this way, the upper cylinder lock 5 can be easily attached to the door body 3.

[0039] According to this embodiment, the following effects are achieved. The mounting structure of the upper cylinder lock 5 of this embodiment comprises a cylinder lock 5 having a cylinder portion 51, a box lock portion 53, and a thumbturn portion 55, and a door body 3 to which the cylinder lock 5 can be attached. The cylinder portion 51 has a cylindrical body portion 511 and a cylinder tip portion 512 that protrudes convexly from the body portion 511 in the axial direction of the body portion 511 and is smaller than the diameter of the body portion 511. The indoor opening 311 is formed to be larger than the diameter of the body portion 511, and the outdoor opening 321 is formed to be smaller than the diameter of the body portion 511 and large enough to accommodate the cylinder tip portion 512.

[0040] As a result, when attaching the cylinder portion 51 to the door body 3, the cylinder portion 51 can be inserted from the interior side into the interior opening 311 of the interior panel portion 31 of the door body 3, so that the cylinder tip portion 512 is positioned in the exterior opening 321 of the exterior panel portion 32, and the body portion 511 can be positioned inside the door body 3. Therefore, since the body portion 511 of the cylinder portion 51 is positioned inside the door body 3 and not outside, the aesthetic appearance can be improved.

[0041] In this embodiment, the tip of the body portion 511 is provided with a temporary fixing portion 56 for temporarily fixing it to the exterior side plate portion 32. This allows the cylinder portion 51 to be temporarily fixed to the exterior side plate portion 32 so that it does not fall even if you release your hand from the cylinder portion 51. Thus, the workability when attaching the upper cylinder lock 5 to the door body 3 can be improved.

[0042] In this embodiment, the temporary fixing part 56 is composed of a magnet part 561 provided on the outer part of the cylinder tip part 512 at the tip of the body part 511 of the cylinder part 51, and a steel plate 562 provided integrally with the outdoor side plate part 32 of the door body 3, which can be connected to the magnet part 561 by magnetic force. This allows the temporary fixing part 56 to be constructed with a simple structure, and the cylinder part 51 can be easily temporarily fixed to the outdoor side plate part 32.

[0043] In this embodiment, a cylinder tip cover member 52 is provided that covers the gap S between the cylinder tip 512 and the outdoor opening 321 from the outside of the outdoor plate portion 32. This allows the gap S between the cylinder tip 512 and the outdoor opening 321 to be covered from the outside of the outdoor plate portion 32, thereby improving the aesthetic appearance.

[0044] In this embodiment, the method for installing the upper cylinder lock 5 includes a cylinder installation step in which the cylinder portion 51 is inserted from the indoor side of the indoor side panel portion 31 of the door body 3 through the indoor side opening 311 and between the indoor side panel portion 31 and the outdoor side panel portion 32, and the cylinder tip portion 512 is positioned in the outdoor side opening 321 before being installed on the outdoor side panel portion 32. As a result, the body portion 511 of the cylinder portion 51 is located inside the door body 3 and not outside, thus improving the aesthetic appearance.

[0045] The cylinder mounting step in this embodiment includes a temporary fixing step in which the tip of the body portion 511 of the cylinder portion 51 is temporarily fixed to the exterior plate portion 32. This allows the cylinder portion 51 to be temporarily fixed to the exterior plate portion 32 so that it does not fall even if you release your hand from the cylinder portion 51. Thus, the workability when attaching the upper cylinder lock 5 to the door body 3 can be improved.

[0046] In this embodiment, after the cylinder mounting step, a cover member mounting step is included in which a cylinder tip cover member 52 is attached from the outside to cover the gap S between the cylinder tip 512 and the outdoor opening 321 from the outside of the outdoor plate 32. This makes it easy to cover the gap S between the cylinder tip 512 and the outdoor opening 321.

[0047] This disclosure is not limited to the embodiments described above, and any modifications, improvements, etc., that are effective in achieving the objectives of this disclosure are included.

[0048] For example, the tip of the cylinder may be formed to protrude axially from the body portion in a convex shape, as in the embodiment described above, or the tip of the cylinder portion 51 may be formed flat (planar).

[0049] In the above embodiment, the cylinder lock was provided on the door body 3, but the invention is not limited to this. For example, the cylinder lock may be provided on a side panel or vertical frame located on the outside of the door edge of the door body. In this case, the cylinder lock mounting portion can be made up of a side panel or vertical frame located on the outside of the door edge of the door body.

[0050] In the above embodiment, the temporary fixing part 56 was composed of a magnet part 561 (first magnetic material) provided at the tip of the cylinder part 51 and a steel plate 562 (second magnetic material) formed from a part of the exterior side plate part 32 of the door body 3, but it is not limited to this. For example, the magnet and the steel plate may be provided in reverse. Also, for example, the temporary fixing part may be made of adhesive tape.

[0051] Furthermore, the first magnetic material (magnet portion 561) provided at the tip of the cylinder portion 51 may be provided integrally with the cylinder portion 51, or it may be provided separately from the cylinder portion 51. Also, the second magnetic material (steel plate 562), which is formed from a part of the exterior plate portion 32 of the door body 3, may be provided integrally with the exterior plate portion 32 of the door body 3, as in the above embodiment, or it may be provided separately from the exterior plate portion 32 of the door body 3. [Explanation of Symbols]

[0052] 3 Door body (cylinder lock mounting part), 5 Upper cylinder lock (cylinder lock), 31 Indoor side panel, 32 Outdoor side panel, 33 Side panel, 51 Cylinder part, 52 Cylinder tip cover member (cover member), 53 Box lock part, 55 Thumbturn part, 56 Temporary fixing part, 311 Indoor side opening, 321 Outdoor side opening, 331 Side opening, 511 Body part, 512 Cylinder tip part, 561 Magnet part (first magnetic material), 562 Steel plate (second magnetic material), S Gap

Claims

1. A cylinder lock capable of locking and unlocking a door, comprising a cylinder part, a box lock part, and a thumbturn part, A cylinder lock mounting section comprising: an indoor plate portion having an indoor opening; an outdoor plate portion positioned opposite the indoor plate portion and having an outdoor opening; and a side plate portion connecting the indoor plate portion and the outdoor plate portion and having a side opening; The cylinder portion comprises a cylindrical body portion and a cylinder tip portion that protrudes from the body portion in the axial direction of the body portion and is smaller than the diameter of the body portion. The gap between the cylinder tip and the outdoor opening is covered by a cover member that covers the outside of the outdoor plate portion, The tip of the body portion of the cylinder portion abuts against the indoor surface of the outdoor plate portion. The tip of the cylinder protrudes further outward than the outer surface of the outer plate portion. The cover member and the side surface of the cylinder tip are facing each other. Installation structure for cylinder locks on front doors.

2. The mounting structure for a cylinder lock for an entrance door according to Claim 1, wherein an inclined surface is provided on the portion of the cover member that faces the side surface of the tip of the cylinder.

3. The cover member has an annular gap arrangement portion disposed in the gap between the cylinder tip and the outdoor opening, and an annular planar portion that extends radially outward from the outdoor end of the annular gap arrangement portion and is disposed along the outdoor surface of the outdoor plate portion, The mounting structure for a cylinder lock for an entrance door according to claim 1 or 2, wherein the outdoor-facing surface of the annular planar portion is located further outward than the tip of the cylinder.

4. The door body constitutes the cylinder lock mounting portion, The cylinder lock is attached to the door body that constitutes the cylinder lock mounting portion, according to any one of claims 1 to 3, as a mounting structure for a cylinder lock for an entrance door.

5. An entrance door comprising a mounting structure for a cylinder lock for an entrance door according to any one of Claims 1 to 3.

6. The entrance door according to claim 5, wherein the cylinder lock mounting portion is provided on the door body.

7. The entrance door according to claim 5, wherein the cylinder lock mounting portion is provided on a side portion located on the outside of the door edge of the door body.

8. comprising a door frame and a door body disposed inside the door frame, The entrance door according to claim 5, wherein the cylinder lock mounting portion is provided on the vertical frame of the door frame.

Images