Cylinder lock mounting structure and cylinder lock mounting method

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 a cylinder lock mounting structure and a cylinder lock mounting method. [Background technology]

[0002] Conventionally, a mounting structure for a cylinder lock is known (see, for example, Patent Document 1). A cylinder lock is mounted to a door body by the mounting structure for the cylinder lock. The cylinder lock comprises a box lock having a locking mechanism, a cylinder portion, and a thumbturn portion. The door body is capable of mounting the cylinder lock and has an indoor side plate portion having an indoor side opening, an outdoor side plate portion disposed opposite the indoor side plate portion and having an outdoor side opening, and a side plate portion connecting an end of the indoor side plate portion and an end of the outdoor side plate portion and having a side opening formed therein.

[0003] Conventionally, when attaching a cylinder lock to a door body, the box lock is inserted into the door body from a side opening and positioned therein, and then the thumbturn part is inserted from the indoor side of the indoor side plate part through the indoor side opening into the door body to position it on the indoor side of the box lock, and the cylinder part is inserted from the outdoor side of the outdoor side plate part through the outdoor side opening into the door body to position it on the outdoor side of the box lock. In this way, the cylinder lock is attached to the door body with the box lock sandwiched between the cylinder part and the thumbturn part in the indoor / outdoor direction of the door body. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2018-204226 A Summary of the Invention [Problem to be solved by the invention]

[0005] In the mounting structure for the cylinder lock described in Patent Document 1, the cylinder part of the cylinder lock, which has a large diameter, is disposed so as to protrude to the outside of the door body, so there is room for improvement in terms of design. There is a demand for a mounting structure for the cylinder lock that can improve design.

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

[0007] The present disclosure relates to a cylinder lock mounting structure that is capable of locking and unlocking a door, the 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, the cylinder portion having an indoor side plate portion with an indoor side opening formed therein, an outdoor side plate portion arranged opposite the indoor side plate portion with an outdoor side opening formed therein, and a side plate portion connecting the indoor side plate portion and the outdoor side plate portion with a side opening formed therein, the cylinder portion having 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 indoor side opening being formed larger than the diameter of the body portion, and the outdoor side opening being formed smaller than the diameter of the body portion and of a size that allows the cylinder tip portion to be disposed therein. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a diagram showing a building fixture to which a cylinder lock of one embodiment is attached. [Diagram 2] This is a perspective view of a door body with a cylinder lock attached, as seen from the outside of the room. [Diagram 3] 1 is a perspective view of a door body with a cylinder lock attached, as viewed from the inside of the room. FIG. [Figure 4] FIG. 4 is a cross-sectional view taken along line AA in FIG. [Diagram 5] 1 is an exploded perspective view of the mounting structure of a cylinder lock as viewed from the outside of the room. FIG. [Figure 6] 1 is an exploded perspective view of the mounting structure of a cylinder lock as viewed from the inside of the room. FIG. [Figure 7] 1 is an enlarged cross-sectional view showing the cylinder portion attached to the door body. FIG. [Figure 8] 1 is an oblique view showing the state in which a cylinder tip cover member is attached to the tip of a cylinder portion attached to an exterior side plate portion. FIG. [Figure 9A] 13A and 13B are diagrams for explaining a cylinder portion mounting process. [Figure 9B] 13 is a diagram for explaining the box lock installation process. [Figure 9C] 13A to 13C are diagrams for explaining the thumb turn installation process and the cylinder cap installation process. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, an embodiment of the present disclosure will be described in detail with reference to the drawings. As shown in Fig. 1, the fitting 1 includes a frame 2 fixed to a building, a door body 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 receiving portion 6, and a lower cylinder lock device 7 having a lower cylinder lock 8 and a lower lock receiving portion 9. The fitting 1 is provided for the entrance of 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 provided along the four perimeters 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 hanging side, and a vertical frame 24 on the door end side. The upper lock receiving portion 6 of the upper cylinder lock device 4 and the lower lock receiving portion 9 of the lower cylinder lock device 7 are provided on the vertical frame 23 on the door end side.

[0011] The door body 3 is a hinged door that is hung inside the frame body 2 via a hinge 25 fixed to the vertical frame 23 on the hanging side. The door body 3 is configured to be rotatable around the rotation axis of the hinge 25 provided on the door base side relative to the frame body 2, and is attached in a so-called outward opening state, which means that the door body 3 rotates from a closed state toward the outside of the room.

[0012] When viewed from the outside of the room, an upper cylinder lock 5, a handle portion 11, and a lower cylinder lock 8 are arranged in this order from top to bottom on the door end side of the door body 3. The upper cylinder lock 5 and the lower cylinder lock 8 are attached to the door body 3 by a cylinder lock mounting structure. In this embodiment, since the upper cylinder lock device 4 and the lower cylinder lock device 7 have the same configuration, 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 Fig. 1, the upper cylinder lock device 4 includes an upper cylinder lock 5 (cylinder lock) and an upper lock receiving portion 6. The upper lock receiving portion 6 is disposed inside the vertical frame 24 on the door end side of the frame body 2. As shown in Figs. 2 and 3, the upper cylinder lock 5 is attached to the door body 3 by a cylinder lock mounting structure.

[0014] In this embodiment, the door body 3 constitutes a cylinder lock mounting portion to which the upper cylinder lock 5 and the lower cylinder lock 8 can be attached. As shown in Figs. 2 to 4, the door body 3 has a configuration to which the upper cylinder lock 5 can be attached, and includes an indoor side plate portion 31 having an indoor side opening 311 formed therein, an outdoor side plate portion 32 arranged opposite the indoor side plate portion 31 and having an outdoor side opening 321 formed therein, a side plate portion 33 that connects the door front end of the indoor side plate portion 31 and the door front end end of the outdoor side plate portion 32 and has a side opening 331 formed therein, and a door front end frame 34 having an end opening 341 formed therein. In this embodiment, the indoor side plate portion 31 and the outdoor side plate portion 32 are made of, for example, a steel plate.

[0015] As shown in Figures 4 to 6, the upper cylinder lock 5 comprises a cylinder portion 51, a cylinder end 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 Figures 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 on the door end side of the door body 3, with the body portion 511 disposed inside the door body 3 and the cylinder tip portion 512 disposed in the outdoor opening 321 of the outdoor side plate portion 32 of the door body 3.

[0017] 7, cylinder tip portion 512 is provided at the end portion on the outdoor side of body portion 511. In this embodiment, cylinder tip portion 512 is formed in a disk shape, and protrudes from the tip of body portion 511 by the amount of its thickness. Diameter Rc2 (outer diameter) of cylinder tip portion 512 is formed to be smaller than diameter Rc1 (outer diameter) of body portion 511. Cylinder tip portion 512 is formed with a keyhole 512a.

[0018] 7 and 8, when the cylinder part 51 is attached to the door body 3, the cylinder tip part 512 is disposed inside the outdoor opening 321 of the outdoor side plate part 32 of the door body 3. The cylinder part 51 is attached to the door body 3 with a gap S formed between the cylinder tip part 512 and the outdoor opening 321.

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

[0020] Further, the diameter Rc2 of the outdoor opening 321 of the outdoor side plate 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 disposed therein. 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 side plate 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 disposed therein.

[0021] 5 and 6, the cylinder portion 51 is inserted into the door body 3 from the indoor side of the indoor opening 311 of the indoor plate portion 31 of the door body 3, and is attached to the outdoor plate portion 32 with the body portion 511 disposed inside the door body 3 and the cylinder tip portion 512 disposed in the outdoor opening 321 of the outdoor plate portion 32. In this state, 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 outdoor opening 321, as shown in FIGS.

[0022] 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 is composed of a magnet part 561 (first magnetic body) provided on the radial outside of 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 body) formed of a part of the outdoor side plate part 32 of the door body 3 connectable to the magnet part 561 by magnetic force. The steel plate 562 is provided integrally with the outdoor side plate part 32.

[0023] When attaching the cylinder portion 51 to the outdoor opening 321 of the outdoor side plate portion 32, the temporary fixing portion 56 magnetically connects the tip of the cylinder portion 51 to the indoor surface of the outdoor side plate portion 32 of the door body 3 before the cylinder portion 51 is permanently fixed to the door body 3, thereby temporarily fixing the cylinder portion 51 to the outdoor side plate portion 32 so that it will not fall even if the cylinder portion 51 is released from the hand.

[0024] 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 side plate portion 32 from the outside of the outdoor side plate portion 32. The cylinder tip cover member 52 has an annular flat portion 521 and an annular protruding portion 522 protruding from the inner circumferential edge of the annular flat portion 521 towards the cylinder portion 51.

[0025] When the cylinder tip cover member 52 is attached to the tip of the cylinder portion 51, the annular protrusion portion 522 is disposed in an annular gap S between the cylinder tip portion 512 of the cylinder portion 51 and the outdoor opening 321. The annular flat portion 521 extends from the outdoor end of the annular protrusion portion 522 to the outside in the radial direction of the annular protrusion portion 522. Therefore, the annular flat portion 521 can cover the boundary portion 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 Figs. 7 and 8.

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

[0027] As shown in Figures 4 to 6, the case part 531 is formed with an indoor side recess 532 which is recessed into a cylindrical shape, and an outdoor side recess 533 which is recessed into a cylindrical shape. The outdoor side end of the thumb turn part 55 (described later) is disposed in the indoor side recess 532. The indoor side end of the cylinder part 51 (described later) is disposed in the outdoor side recess 533. The side plate 54 is attached to the end face on the door tip side of the door body 3 so as to cover the mounting plate 531b of the box lock part 53.

[0028] As shown in Figs. 5 and 6, the dead sickle portion 534 is arranged so as to be able to protrude laterally from the side surface of the case portion 531. The dead sickle portion 534 is formed in a sickle shape whose tip protrudes downward when locked. The sickle 534a of the dead sickle portion 534 is able to engage with the upper lock receiving portion 6 (see Fig. 1). By operating the thumb turn portion 55, the dead sickle portion 534 is configured to be movable between a position where the sickle 534a of the dead sickle portion 534 protrudes and engages with the upper lock receiving portion 6 to be locked (see Fig. 1) and a position where the sickle 534a of the dead sickle portion 534 is accommodated and disengaged from the upper lock receiving portion 6 to be unlocked (not shown).

[0029] As shown in Figures 4 to 6, the thumb turn portion 55 is inserted into the door body 3 from the indoor side of the indoor side opening 311 of the indoor side panel portion 31 of the door body 3 at the door end side of the door body 3. The thumb turn portion 55 is provided rotatably relative to the box lock portion 53. By rotating the thumb turn portion 55, the dead sickle portion 534 is locked and unlocked.

[0030] As shown in Figures 4 to 6, thumb turn portion 55 has a thumb turn main body 551 and a thumb turn base portion 552. Thumb turn main body 551 has an operating portion 551a and a shaft portion 551b extending from the outdoor side surface of operating portion 551a to the outdoor side.

[0031] The operating part 551a is formed in a short cylindrical shape with the indoor side blocked, and is configured to be rotatable by human operation. When the operating part 551a is rotated by a person, the shaft part 551b extending in the indoor / outdoor direction is rotated. This causes the thumb turn part 55 to be rotated by human operation, and the dead sickle part 534 can be used to lock and unlock the door via the box lock part 53 in accordance with the rotation of the thumb turn part 55.

[0032] Thumb turn base part 552 is arranged on the outdoor side of thumb turn main body 551. Thumb turn base part 552 is formed in a cylindrical shape, and shaft part 551b of thumb turn main body 551 is arranged to pass through the cylindrical interior. The outdoor tip of thumb turn base part 552 is arranged in indoor recess 532 of case part 531 of box lock part 53, and supports thumb turn main body 551 rotatably.

[0033] Next, a method for attaching the upper cylinder lock 5 to the door body 3 will be described.

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

[0035] In this embodiment, the temporary fixing part 56 is composed of a magnet part 561 provided on the radially 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 formed 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. Therefore, the magnet part 561 provided at the tip of the body part 511 and the steel plate 562 formed of a part of the outdoor side plate part 32 of the door body 3 are connected by magnetic force. As a result, when the cylinder part 51 is temporarily fixed to the outdoor side plate part 32 of the door body 3, the cylinder part 51 will not fall even if the hand is released from the cylinder part 51, improving the workability when attaching the cylinder part 51 to the door body 3.

[0036] Next, after attaching the cylinder section 51 to the outdoor side plate section 32, as shown in Fig. 9B, the box lock section 53 is inserted between the indoor side plate section 31 and the outdoor side plate section 32 from the side of the side plate section 33 and the door-front end frame 34, through the side opening section 331 and the end opening section 341. Then, as shown in Fig. 9C, with the indoor side end section of the cylinder section 51 placed in the outdoor side recess section 533 of the case section 531, the box lock section 53 is placed on the indoor side of the cylinder section 51 (box lock attachment process).

[0037] Next, after attaching the box lock unit 53, as shown in Fig. 9C, the thumbturn unit 55 is inserted from the indoor side of the indoor side plate unit 31 through the indoor side opening 311 between the indoor side plate unit 31 and the outdoor side plate unit 32. Then, by arranging the outdoor side end of the thumbturn base unit 552 of the thumbturn unit 55 in the indoor side recess 532 of the case unit 531, the thumbturn unit 55 is attached to the indoor side plate unit 31 with the thumbturn unit 55 positioned on the indoor side of the box lock unit 53 (thumbturn unit attachment process).

[0038] Furthermore, the cylinder tip cover member 52 is attached from the outside of the room so as to cover the gap S between the cylinder tip portion 512 and the outside opening 321 from the outside of the outside plate portion 32 (cover member attachment process). Also, the side plate 54 is attached to the end surface on the door tip side 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 includes a cylinder lock 5 having a cylinder portion 51, a box lock portion 53, and a thumb turn portion 55, and a door body 3 to which the cylinder lock 5 can be mounted, the cylinder portion 51 has a cylindrical body portion 511 and a cylinder tip portion 512 that protrudes from the body portion 511 in a convex shape 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 larger than the diameter of the body portion 511, and the outdoor opening 321 is formed smaller than the diameter of the body portion 511 and is large enough to accommodate the cylinder tip portion 512.

[0040] As a result, when attaching the cylinder portion 51 to the door body 3, by inserting the cylinder portion 51 from the indoor side into the indoor opening 311 of the indoor side plate portion 31 of the door body 3, the body portion 511 can be disposed inside the door body 3 with the cylinder tip portion 512 disposed in the outdoor opening 321 of the outdoor side plate portion 32. Therefore, since the body portion 511 of the cylinder portion 51 is disposed inside the door body 3 and not disposed outside, the design can be improved.

[0041] In this embodiment, a temporary fixing part 56 is provided to temporarily fix the tip of the body part 511 to the outdoor side plate part 32. This allows the cylinder part 51 to be temporarily fixed to the outdoor side plate part 32 so that it will not fall even if the cylinder part 51 is released from the hand. This improves the workability when attaching the upper cylinder lock 5 to the door body 3.

[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 and connectable to the magnet part 561 by magnetic force. This allows the temporary fixing part 56 to be constructed simply, 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 portion 512 and the outdoor opening 321 from the outside of the outdoor plate portion 32. This makes it possible to cover the gap S between the cylinder tip portion 512 and the outdoor opening 321 from the outside of the outdoor plate portion 32, thereby improving the design.

[0044] The mounting method for the upper cylinder lock 5 of this embodiment includes a cylinder mounting step of inserting the cylinder portion 51 from the indoor side of the indoor side plate portion 31 of the door body 3 through the indoor side opening 311 between the indoor side plate portion 31 and the outdoor side plate portion 32, and mounting it to the outdoor side plate portion 32 with the cylinder tip portion 512 positioned at the outdoor side opening 321. As a result, the body portion 511 of the cylinder portion 51 is positioned inside the door body 3, and not positioned outside, improving the design.

[0045] The cylinder part attachment process of this embodiment includes a temporary fixing process for temporarily fixing the tip of the body part 511 of the cylinder part 51 to the outdoor side plate part 32. This allows the cylinder part 51 to be temporarily fixed to the outdoor side plate part 32 so that it will not fall even if the cylinder part 51 is released from the hand. This improves the workability when attaching the upper cylinder lock 5 to the door body 3.

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

[0047] The present disclosure is not limited to the above-described embodiments, and modifications and improvements within the scope of achieving the object of the present disclosure are included in the present disclosure.

[0048] For example, the cylinder tip may be formed so as to protrude convexly from the body in the axial direction as in the above embodiment, or the tip of the cylinder portion 51 may be formed flat (planar).

[0049] In the above embodiment, the cylinder lock is provided on the door body 3, but this is not limiting. For example, the cylinder lock may be provided on the sleeve or vertical frame located on the outside of the door edge of the door body. In this case, the cylinder lock attachment part can be configured by the sleeve 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 is composed of the magnet part 561 (first magnetic body) provided at the tip of the cylinder part 51 and the steel plate 562 (second magnetic body) formed of a part of the outdoor side plate part 32 of the door body 3, but is not limited thereto. For example, the magnet and the steel plate may be provided in reverse. Also, for example, the temporary fixing part may be composed of an adhesive tape.

[0051] In addition, the first magnetic body (magnet portion 561) provided at the tip of the cylinder portion 51 may be provided integrally with the cylinder portion 51 or may be provided separately from the cylinder portion 51. In addition, the second magnetic body (steel plate 562) constituted by a part of the outdoor side plate portion 32 of the door body 3 may be provided integrally with the outdoor side plate portion 32 of the door body 3 as in the above embodiment or may be provided separately from the outdoor side plate portion 32 of the door body 3. [Explanation of symbols]

[0052] 3 door body (cylinder lock mounting portion), 5 upper cylinder lock (cylinder lock), 31 indoor side plate portion, 32 outdoor side plate portion, 33 side plate portion, 51 cylinder portion, 52 cylinder tip cover member (cover member), 53 box lock portion, 55 thumb turn portion, 56 temporary fixing portion, 311 indoor side opening, 321 outdoor side opening, 331 side opening, 511 body portion, 512 cylinder tip portion, 561 magnet portion (first magnetic body), 562 steel plate (second magnetic body), S gap

Claims

1. A cylinder lock capable of locking and unlocking a door body, the cylinder lock having a cylinder portion, a box lock portion, and a thumb turn portion; a cylinder lock mounting portion capable of mounting the cylinder lock, the cylinder lock mounting portion having an indoor side plate portion having an indoor side opening formed therein, an outdoor side plate portion arranged opposite the indoor side plate portion and having an outdoor side opening formed therein, and a side plate portion connecting the indoor side plate portion and the outdoor side plate portion and having a side opening formed therein; The cylinder portion has a cylindrical body portion and a cylinder tip portion that protrudes from the body portion in an axial direction of the body portion and is smaller than a diameter of the body portion, The interior opening is formed larger than the diameter of the body portion, A mounting structure for a cylinder lock, wherein the exterior opening is smaller than the diameter of the body portion and is formed to a size that allows the cylinder tip to be positioned therein.

2. 2. The mounting structure for a cylinder lock as described in claim 1, further comprising a temporary fixing portion for temporarily fixing a tip of the body portion to the exterior side plate portion.

3. The mounting structure for a cylinder lock as described in claim 2, wherein the temporary fixing portion is composed of a first magnetic body provided at the tip of the body portion either integrally with or separately from the body portion, and a second magnetic body provided integrally with or separately from the indoor side plate portion and connectable to the first magnetic body by magnetic force.

4. The cylinder lock mounting structure according to claim 2 , wherein the temporary fixing portion is constituted by an adhesive tape.

5. A cylinder lock mounting structure as described in any one of claims 1 to 4, further comprising a cover member that covers the gap between the cylinder tip and the exterior opening from the outside of the exterior plate portion.

6. A method for attaching a cylinder lock capable of locking and unlocking a door body to a cylinder lock attachment part, comprising the steps of: The cylinder lock has a cylinder portion, a box lock portion, and a thumb turn portion, The cylinder lock mounting portion has an indoor side plate portion having an indoor side opening, an outdoor side plate portion arranged opposite the indoor side plate portion and having an outdoor side opening, and a side plate portion connecting the indoor side plate portion and the outdoor side plate portion and having a side opening, The cylinder portion has a cylindrical body portion and a cylinder tip portion that protrudes from the body portion in an axial direction of the body portion and is smaller than a diameter of the body portion, The interior opening is formed larger than the diameter of the body portion, The exterior opening is formed to be smaller than the diameter of the body portion and large enough to accommodate the tip of the cylinder. A method for installing a cylinder lock includes a cylinder part installation step of inserting the cylinder part between the indoor side plate part and the outdoor side plate part from the indoor side of the indoor side plate part through the indoor side opening and attaching it to the outdoor side plate part with the tip of the cylinder positioned at the outdoor opening.

7. 7. The method for installing a cylinder lock according to claim 6, wherein the cylinder portion installation step includes a temporary fixing step of temporarily fixing a tip of the body portion to the exterior side plate portion.

8. A method for installing a cylinder lock as described in claim 6 or 7, which includes a cover member installation step of installing a cover member from the outside of the room after the cylinder portion installation step, the cover member covering the gap between the cylinder tip portion and the outside opening from the outside of the outside plate portion.

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