Thumb turn for locking device

Abstract

To provide a thumb turn for locking devices that has an improved aesthetic appearance.SOLUTION: The present invention discloses a thumb turn 8 for locking devices, which is used in a locking device 5 and has a cylindrical or cylinder-shaped actuator 84 provided protruding from a lock body 51 of the locking device 5, and the actuator 84 is formed in a circular shape in front view.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present disclosure relates to a thumbturn for a locking device. [Background technology]

[0002] 2. Description of the Related Art Conventionally, among thumb turns for locking devices, a thumb turn provided with a knob portion is known (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2006-200147 A Summary of the Invention [Problem to be solved by the invention]

[0004] The thumb turn described in Patent Document 1 has a protruding knob, so there is room for improvement in terms of design. A thumb turn with improved design is desired.

[0005] The present disclosure aims to provide a thumb turn for a locking device with improved design. [Means for solving the problem]

[0006] The present disclosure relates to a thumb turn for a locking device, the thumb turn having a cylindrical or columnar operating portion protruding from a lock body of the locking device, the operating portion being formed in a circular shape when viewed from the front. [Brief description of the drawings]

[0007] [Figure 1] FIG. 2 is a view of the lock device of the first embodiment as seen from the outside of the room. [Diagram 2] FIG. 2 is a view of the lock device of the first embodiment as seen from the inside of the room. [Diagram 3]FIG. 2 is a perspective view of a thumb turn for a locking device according to the first embodiment. [Figure 4] FIG. 2 is a front view of the thumb turn for the lock device of the first embodiment. [Diagram 5] FIG. 2 is a longitudinal cross-sectional view of a thumb turn for a lock device of the first embodiment. [Figure 6] A diagram showing a schematic diagram of the surface treatment of the front plate portion of the thumb turn for the locking device of the first embodiment. [Figure 7] FIG. 11 is a perspective view of a thumb turn for a locking device of a second embodiment. [Figure 8] A front view of a thumb turn for a locking device of a second embodiment. [Figure 9] A vertical cross-sectional view of a thumb turn for a locking device of a second embodiment. [Figure 10] A diagram showing a schematic diagram of the surface treatment of the front plate portion of the thumb turn for the locking device of the second embodiment. [Figure 11] FIG. 13 is a diagram showing a modified embodiment, in which a thumb turn for the locking device is provided on the door body, showing the locking device as viewed from the outside of the room. [Figure 12] FIG. 13 is a diagram showing a modified embodiment, in which a thumb turn for the locking device is provided on the door body, showing the locking device as viewed from the inside of the vehicle. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] A first embodiment of the thumb turn 8 for a locking device of the present disclosure will be described in detail below with reference to the drawings. In the following description, the width direction of the door body 3 and the armrest 4 will be referred to as the "width direction", the door end side of the door body 3 as the "door end side", the hinge side opposite the door end side of the door body 3 as the "hinged side", the thickness direction of the door body 3 in the closed state as the "depth direction (projection direction)", and the longitudinal direction of the door body 3 as the "vertical direction".

[0009] First, a fitting 1 in which a manual locking device 5 (locking device) of the first embodiment is installed will be described. As shown in Figs. 1 and 2, the fitting 1 comprises a frame 2 fixed to a building, a door body 3 (door body) arranged within the frame 2 so as to be able to be opened and closed, and a sleeve portion 4 arranged on the door end side of the frame 2. The fitting 1 is installed for use as an entrance to a building. The fitting 1 can be locked and unlocked by a manual locking device 5 and an electric locking device 6. The manual locking device 5 and the electric locking device 6 are locking devices for the entrance.

[0010] The frame body 2 is provided along the four periphery of the opening of the building. The frame body 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. Within the frame body 2, the door body 3 and the sleeve portion 4 are arranged adjacent to each other in the width direction. The sleeve portion 4 is arranged on one side of the door body 3 in the width direction, at the door end side.

[0011] The door body 3 is a hinged door that can be opened and closed by rotating around a rotation axis provided on the vertical frame 23 on the hanging side. The door body 3 is installed in a so-called outward opening state, that is, it rotates from a closed state toward the outside of the room.

[0012] The door body 3 is formed in a generally rectangular plate shape that is long in the vertical direction. An exterior handle 27 is provided on the exterior surface of the door body 3. An interior handle 28 is provided on the interior surface of the door body 3. The exterior handle 27 and the interior handle 28 are formed near the end of the door tip side of the door body 3 and extend in the vertical direction.

[0013] The sleeve portion 4 is disposed within the frame 2 adjacent to the door body 3. The sleeve portion 4 is disposed on the door-end side of the door body 3 when the door body 3 is in the closed position.

[0014] The sleeve portion 4 has an exterior covering material 41 that covers the surface facing the exterior side, and an interior covering material 42 that covers the surface facing the interior side.

[0015] 1, the exterior covering material 41 is formed in a generally rectangular plate shape that is long in the vertical direction, and covers the inside of the sleeve portion 4 from the exterior side. The exterior covering material 41 is configured to be rotatable about a rotation axis that is located at the end of the sleeve portion 4 on the opposite side to the door body 3 in the width direction, and is provided on the exterior surface of the sleeve portion 4 so as to be openable and closable.

[0016] The outdoor-side cover material 41 has an outdoor-side cover opening 411. When the outdoor-side cover material 41 is in the closed position, the outdoor-side authentication unit 61 of the electric lock device 6 arranged inside the sleeve portion 4 is exposed to the outside of the outdoor side from the outdoor-side cover opening 411.

[0017] When the outdoor covering material 41 is in the open position, most of the inside of the sleeve portion 4 is covered by an outdoor internal plate 412 that is substantially rectangular and long in the vertical direction when viewed from the outside of the room, and the outdoor authentication unit 61 of the electric locking device 6 and the keyhole 521 of the cylinder portion 52 of the manual locking device 5 are exposed from the outdoor internal plate 412. When the outdoor covering material 41 is in the closed position, the keyhole 521 of the cylinder portion 52 of the manual locking device 5 is covered by the outdoor covering material 41, and the outdoor authentication unit 61 of the electric locking device 6 is exposed to the outside of the room through the outdoor cover opening 411 of the outdoor covering material 41.

[0018] 2, the indoor side covering material 42 is formed in a generally rectangular plate shape that is long in the vertical direction, and covers the inside of the sleeve portion 4 from the indoor side. The indoor side covering material 42 is configured to be rotatable about a rotation axis that is located at the end of the sleeve portion 4 on the opposite side to the door body 3 in the width direction, and is provided on the indoor side surface of the sleeve portion 4 so as to be openable and closable.

[0019] The indoor side cover material 42 has an indoor side cover opening 421. When the indoor side cover material 42 is in the closed position, the indoor side authentication unit 62 of the electric lock device 6 arranged inside the sleeve portion 4 is exposed to the outside of the room from the indoor side cover opening 421.

[0020] When the indoor side covering material 42 is in the open position, most of the inside of the sleeve portion 4 is covered by an indoor side internal plate 422 that is substantially rectangular and long in the vertical direction when viewed from the indoor side, and the indoor side authentication unit 62 of the electric locking device 6 and the thumb turn 8 of the manual locking device 5 are exposed from the indoor side internal plate 422. When the indoor side covering material 42 is in the closed position, the thumb turn 8 of the manual locking device 5 is covered by the indoor side covering material 42, and the indoor side authentication unit 62 of the electric locking device 6 is exposed to the outside on the indoor side through an indoor side cover opening 421 of the indoor side covering material 42.

[0021] As shown in Figures 1 and 2, the two manual locking devices 5 are provided spaced apart vertically at the end of the sleeve portion 4 on the door body 3 side in the width direction. Each manual locking device 5 comprises a box lock portion 51 (lock body), a cylinder portion 52, and a thumb turn 8 for the locking device. The box lock portion 51, cylinder portion 52, and thumb turn 8 are provided in the sleeve portion 4. The box lock portion 51 is used both when locking and unlocking with the manual locking device 5 and when locking and unlocking with the electric locking device 6.

[0022] 1, the cylinder portion 52 extends cylindrically in the indoor / outdoor direction of the fitting 1. The keyhole 521 of the cylinder portion 52 is covered by the outdoor cover material 41 when the outdoor cover material 41 is in the closed position. The keyhole 521 of the cylinder portion 52 is exposed to the outside of the room when the outdoor cover material 41 is in the open position.

[0023] When a user inserts a key into the keyhole 521 of the cylinder portion 52 to lock or unlock the door, the user places the exterior cover material 41 in the open position, inserts a key into the keyhole 521 of the cylinder portion 52 from outside the room, and rotates the cylinder portion 52 to lock or unlock the dead sickle portion 512 of the box lock portion 51.

[0024] As shown in Fig. 2, the thumb turn 8 is provided so as to protrude from the box lock portion 51 (lock body) to the indoor side. When the indoor side cover material 42 is in the closed position, the thumb turn 8 is covered by the indoor side cover material 42. When the indoor side cover material 42 is in the open position, the thumb turn 8 is exposed to the outside on the indoor side.

[0025] The thumb turn 8 is provided rotatably relative to the box lock section 51. When locking or unlocking is performed using the thumb turn 8, the user turns the thumb turn 8 from inside the room with the exterior cover material 41 in the open position, thereby locking or unlocking the dead sickle section 512 of the box lock section 51. Details of the thumb turn 8 will be described later.

[0026] The box lock portion 51 is disposed inside the sleeve portion 4. The box lock portion 51 has a case portion 511 and a hook-shaped dead sickle portion 512.

[0027] The dead sickle portion 512 is provided so as to be able to protrude from the side end surface of the sleeve portion 4 toward the door body 3. The dead sickle portion 512 is formed in a sickle shape whose tip protrudes downward when locked. The dead sickle portion 512 is able to engage with a lock receiving portion (not shown) of the door body 3.

[0028] The dead sickle portion 512 is configured to be movable between a position where the dead sickle portion 512 projects and engages with the lock receiving portion of the door body 3 to lock (see FIG. 1) and a position where the dead sickle portion 512 is accommodated and disengaged from the lock receiving portion to unlock (not shown) when the user who opens or closes the door body 3 rotates the keyhole 521 of the cylinder portion 52 from the outside of the room or rotates the thumb turn 8 from the inside of the room. The dead sickle portion 512 can lock and unlock the door body 3 by driving a motor (not shown) of the electric lock device 6 in addition to operating the cylinder portion 52 or the thumb turn 8.

[0029] The thumb turn 8 will be described in detail. As shown in Fig. 3 and Fig. 4, the thumb turn 8 is provided so as to protrude toward the indoor side of the indoor side internal plate 422 of the sleeve portion 4. As shown in Fig. 5, the thumb turn 8 includes a base portion 81 and an operating handle 82.

[0030] 5, the base part 81 is formed in a cylindrical shape extending in the indoor / outdoor direction of the fitting 1. The base part 81 has a locking part 811 at one end attached to the indoor side internal plate 422 of the sleeve part 4, and the other end side is disposed on the inner side of the indoor side internal plate 422 of the sleeve part 4. An operating handle 82 is attached to the base part 81.

[0031] As shown in Fig. 5, the operating handle 82 comprises a shaft portion 83 extending in the indoor / outdoor direction of the fitting 1, and an operating portion 84 connected to the indoor end of the shaft portion 83. The shaft portion 83 is disposed penetrating the base portion 81 in the indoor / outdoor direction. The end of the shaft portion 83 opposite the operating portion 84 is connected to the box lock portion 51 (see Fig. 2).

[0032] As shown in Figures 3 and 4, the operating unit 84 is disposed on the indoor side of the indoor side internal panel 422 of the sleeve portion 4. The operating unit 84 is formed in a cylindrical or columnar shape. The operating unit 84 is formed in a circular shape when viewed from the front. In this embodiment, the operating unit 84 is formed, for example, in a perfect circular shape when viewed from the front. The shape of the operating unit 84 when viewed from the front is not limited to a perfect circular shape. The shape of the operating unit 84 when viewed from the front may be circular, for example, an oval, elliptical, or egg-shaped.

[0033] The operating portion 84 has a front plate portion 85 (front portion) that is circular when viewed from the front, and a peripheral wall portion 86 (side portion) that rises from the outer periphery of the front plate portion 85 toward the box lock portion 51 side.

[0034] The front plate portion 85 has a front portion 851 and an inclined surface portion 852. The front portion 851 is formed in a flat shape extending in the up-down direction and in the width direction of the sleeve portion 4. When viewed from the front, the front portion 851 is formed in a shape in which a part of an arc near the outer periphery of the circle (the inclined surface portion 852) is cut out in a straight line parallel to the tangent direction.

[0035] The inclined surface portion 852 is formed on a part of the outer peripheral edge of the front plate portion 85. The inclined surface portion 852 is formed continuously with the front portion 851, and is formed on a part of the outer peripheral edge of the front plate portion 85 so as to be inclined with respect to the front portion 851. The inclined surface portion 852 inclines from the front portion 851 toward the box lock portion 51 side as it moves from the radial inside of the front plate portion 85 toward the outer peripheral edge.

[0036] The inclined surface portion 852 serves as a marker that indicates the rotation position of the operating portion 84. In this embodiment, the thumb turn 8 can be rotated between an unlocked position where the inclined surface portion 852 is located at the top and a locked position where the inclined surface portion 852 is rotated 90° clockwise from the unlocked position. By changing the rotation position of the inclined surface portion 852, the manual locking device 5 can be locked or unlocked.

[0037] The surface of the peripheral wall portion 86 is subjected to an anti-slip treatment. In this embodiment, for example, knurling is applied to the surface of the peripheral wall portion 86 as the anti-slip treatment. The knurling is formed by providing a plurality of grooves extending along the axial direction of the operating portion 84 over the entire circumferential area of ​​the surface of the peripheral wall portion 86.

[0038] 5, in this embodiment, the operating part 84 is formed in a shape in which the height H (thickness) from the end of the armrest 4 on the indoor side inner plate 422 side to the front plate 85 is smaller than the diameter R of the operating part 84. This makes the operating part 84 thinner and improves its appearance, thereby improving the design.

[0039] 5, the diameter R of the operation part 84 is preferably about 30 mm to 60 mm, and the height H (thickness) of the operation part 84 is preferably about 5 mm to 20 mm. The ratio (H / R) of the height H (thickness) to the diameter R of the operation part 84 is preferably about 1 / 6 to 1 / 2, and more preferably 1 / 3 to 1 / 5. In particular, when the ratio (H / R) of the height H to the diameter R of the operation part 84 is 1 / 3 to 1 / 5, the thickness of the operation part 84 is thin, further improving the appearance, and thus the design can be further improved.

[0040] In this embodiment, the operating handle 82 is made of, for example, stainless steel. In this embodiment, the operating handle 82 is made by, for example, machining stainless steel.

[0041] A surface treatment is applied to the surface of the stainless steel operating unit 84. For example, as shown in the schematic diagram of Fig. 6, the surface of the inclined surface portion 852 of the front plate portion 85 of the operating unit 84 is mirror-finished. The surface of the front portion 851 is spin-finished.

[0042] Mirror finishing is a method of finishing metal surfaces to make them look like mirrors. Spin processing is a processing method of forming fine linear concentric irregularities by polishing or other methods, as shown in the schematic diagram of Figure 6. When light hits a material that has been spin processed, the light is reflected, resulting in a radially shining finish.

[0043] In this embodiment, mirror finishing is applied to the surface of the inclined surface portion 852 of the operation unit 84, making it easy to visually confirm the rotational position of the operation unit 84. Spin processing is applied to the surface of the front portion 851 of the operation unit 84, giving the appearance of the operation unit 84 when viewed from the front a high-quality design.

[0044] According to the first embodiment, the following effects are achieved. The thumb turn 8 for a locking device of this embodiment has a cylindrical or columnar operating part 84 that protrudes from the box lock part 51 of the manual locking device 5, and the operating part 84 is formed in a circular shape when viewed from the front. As a result, the operating part 84 does not have a knob part formed thereon, and the uneven shape is not exposed, thereby improving the design.

[0045] In this embodiment, the operating unit 84 has a front plate 85 that is circular when viewed from the front, and a peripheral wall 86 that rises from the outer periphery of the front plate 85 toward the box lock unit 51, and the surface of the peripheral wall 86 is treated to prevent slipping. This makes it easier to grip the operating unit 84 with the peripheral wall 86, making it easier to operate the operating unit 84. This ensures good operability of the operating unit 84.

[0046] In this embodiment, the front plate portion 85 has a front portion 851 extending in the up-down direction, and an inclined surface portion 852 formed at a part of the outer periphery of the front plate portion 85 at an incline with respect to the front portion 851. By providing the inclined surface portion 852 without providing an uneven shape, the inclined surface portion 852 can be used as a marker for the rotation position when rotating the operating unit 84. Therefore, the rotation position of the operating unit 84 can be easily grasped while improving the design.

[0047] In this embodiment, the surface of the inclined surface portion 852 is mirror-finished, and the surface of the front portion 851 is spin-finished. By mirror-finishing the surface of the inclined surface portion 852, the rotation position of the operation unit 84 can be easily visually recognized. By spin-finishing the surface of the front portion 851, a high-quality design can be achieved, and the design can be improved. Furthermore, by applying different processing to the surface of the inclined surface portion 852 and the surface of the front portion 851, the luminance of the surface of the inclined surface portion 852 and the surface of the front portion 851 is changed, and the visibility of the rotation position of the operation unit 84 is further improved, and the touch feeling of the surface of the inclined surface portion 852 and the surface of the front portion 851 is made different, so that the rotation position of the operation unit 84 can be easily grasped by the touch feeling. Therefore, the design can be improved while the rotation position of the operation unit 84 can be easily grasped.

[0048] Next, a second embodiment will be described. The thumb turn 8A for a locking device of the second embodiment is different from the first embodiment mainly in that, in addition to the configuration of the first embodiment, it further includes a ring member 87 and that an operating part side mark 853 is provided on an inclined surface portion 852A of a front plate portion 85A of an operating part 84. In the second embodiment, the same configurations as those of the first embodiment are given the same reference numerals and the description thereof will be omitted.

[0049] 7 to 9, in an operating handle 82A of the second embodiment, an operating part side mark 853 is formed on an inclined surface portion 852A of a front plate portion 85A of an operating part 84 in addition to the configuration of the inclined surface portion 852 of the first embodiment. In this embodiment, for example, as shown in Figs. 7 and 8, when the inclined surface portion 852 is located in the unlocked position in which it is located at the top, the operating part side mark 853 is provided on the upper side of the center in the horizontal direction on the surface of the inclined surface portion 852.

[0050] In this embodiment, the operation unit side mark 853 is formed by, for example, one recess. Note that the operation unit side mark 853 may be formed by, for example, one protrusion or one line. The operation unit side mark 853 serves as a mark for the rotation position of the operation handle 82A when the operation handle 82A is rotated.

[0051] As shown in Figs. 7 to 9, a thumb turn 8A for a lock device in the second embodiment includes a ring member 87 in addition to the configuration of the thumb turn 8 in the first embodiment.

[0052] The ring member 87 is formed in an annular shape along the circumferential direction of the operation unit 84 on the box lock unit 51 side of the operation unit 84 of the operation handle 82. Pictograms (unlocking position pictogram 871, locking position pictogram 872) are provided on the surface of the ring member 87 on the indoor side as ring member side markers that indicate the rotational position of the operation unit 84. In this embodiment, for example, the pictograms provided on the surface of the ring member 87 are pictograms of a key that represent the locked and unlocked states of the key.

[0053] In this embodiment, a pictogram of the unlocked state is drawn at the top of the ring member 87 as the unlock position pictogram 871. Also, a pictogram of the locked state is drawn at a position rotated 90 degrees clockwise from the top of the ring member 87 as the lock position pictogram 872. When rotating the thumb turn 8A to the unlock position or the lock position, the operating handle 82A is rotated so that the inclined surface portion 852A or the operating portion side mark 853 of the operating portion 84 of the operating handle 82A is aligned with the unlock position pictogram 871 or the lock position pictogram 872. This makes it easy to lock or unlock the thumb turn 8A.

[0054] 10, in a front plate portion 85A of a thumb turn 8A, a surface of an inclined surface portion 852A is mirror-finished like the surface of the inclined surface portion 852 in the first embodiment. A surface of a front portion 851 is spin-finished like the surface of the front portion 851 in the first embodiment. A surface of a ring member 87 is spin-finished like the spin-finished surface of the front portion 851.

[0055] According to the second embodiment, in addition to the effects of the first embodiment, the following effects are achieved. The second embodiment includes a ring member 87 formed in an annular shape along the circumferential direction of the operating unit 84, and the ring member 87 is provided with pictograms (an unlocking position pictogram 871 and a locking position pictogram 872) indicating the rotational position of the operating unit 84. Therefore, when rotating the thumb turn 8A to the unlocking position or the locking position, the operating handle 82A is rotated so that the inclined surface portion 852A or the operating unit side mark 853 of the operating unit 84 of the operating handle 82A is aligned with the unlocking position pictogram 871 or the locking position pictogram 872, so that the operation of locking or unlocking the thumb turn 8A can be easily performed.

[0056] In the present embodiment, the surface of the inclined surface portion 852 is mirror-finished, the surface of the front portion 851 is spin-finished, and the surface of the ring member 87 is spin-finished. Therefore, in addition to the surface of the front portion 851 of the front plate portion 85 of the operation unit 84 being spin-finished as in the first embodiment, the surface of the ring member 87 is also spin-finished in the second embodiment. This allows the design of the surface of the front portion 851 of the front plate portion 85 of the operation unit 84 to be the same as the design of the surface of the ring member 87, thereby realizing a unified design and improving the design.

[0057] In the present embodiment, an operation unit side mark 853 indicating the rotational position of the operation unit 84 is provided on the inclined surface portion 852. By providing the operation unit side mark 853, the visibility of the rotational position of the operation unit 84 can be further improved. Therefore, it is easier to grasp the rotational position of the operation unit 84.

[0058] 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.

[0059] For example, in the above embodiment, the thumb turn 8, 8A for the locking device is provided on the sleeve 4, but the present invention is not limited to this. For example, as in the modified form shown in Fig. 11 and Fig. 12, in a fitting 1A including a frame 2 and a door body 3A arranged in an openable and closable manner within the frame 2, a manual locking device 5A (locking device) may be provided on the door body 3A, so that the thumb turn 8 for the locking device of the first embodiment may be provided on the door body 3A, as shown in Fig. 12. Similarly, although not shown, the thumb turn 8A for the locking device of the second embodiment may be provided on the door body 3A.

[0060] 11 and 12, the fitting 1A comprises a frame 2 fixed to a building, and a door body 3 (door body) arranged within the frame 2 so as to be able to be opened and closed. 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. An exterior handle 27A is provided on the surface of the door body 3 facing the exterior. An interior handle 28A is provided on the surface of the door body 3 facing the interior.

[0061] In the above embodiment, in the portion where the fingertips are placed when gripping the operating part 84 of the thumb turn 8, 8A with the fingers, the surface of the door body 3 or the surface of the interior side plate 422 of the sleeve 4 may be provided with a recess that is recessed from the surface of the door body 3 or the surface of the interior side plate 422 of the sleeve 4. This increases the range over which the fingers can grip the operating part 84, making it easier to grip the operating part 84.

[0062] In the second embodiment, the ring member side mark of the ring member 87 is configured by pictograms (unlock position pictogram 871 and lock position pictogram 872) that are expressed by pictograms of a key, but the present invention is not limited to this. For example, the ring member side mark of the ring member 87 may be configured by various characters (alphabetical characters, numbers, hiragana characters, kanji characters, etc.) other than pictograms, dots, lines, etc. The mark of the ring member 87 may be formed by laser engraving, by applying paint, or by attaching a sticker, for example.

[0063] Moreover, an operation portion side mark 853 similar to that of the second embodiment may be provided on the inclined surface portion 852 of the operation portion 84 of the first embodiment. [Explanation of symbols]

[0064] 5 Manual locking device (locking device), 8, 8A Thumb turn, 51 Box lock part (lock body), 84 Operation part, 85 Front panel part (front part), 86 Peripheral wall part (side part), 851 Front part, 852 Sloping surface part, 853 Operation part side mark, 871 Unlocking position pictogram (ring member side mark), 872 Locking position pictogram (ring member side mark)

Claims

1. A thumb turn for use in a locking device, The thumb turn has a cylindrical or columnar operating portion protruding from the lock body of the lock device, The operation unit is formed in a circular shape when viewed from the front, The operating portion has a front portion and a side portion rising from an outer peripheral edge of the front portion toward the lock main body, The front surface portion has a front portion extending in the up-down direction and an inclined surface portion formed at a part of an outer circumferential edge of the front surface portion and inclined with respect to the front surface portion, A thumb turn for a locking device, wherein the surface of the inclined surface portion is mirror-finished.

2. The operating unit has a front portion that is circular when viewed from the front, and a side portion that rises from the outer periphery of the front portion toward the lock main body, The thumb turn for a lock device according to claim 1, wherein the surface of the side portion is treated to have an anti-slip finish.

3. A thumb turn for a locking device as described in claim 1 or 2, wherein the surface of the front portion is spin-processed.

4. a ring member formed in an annular shape along a circumferential direction of the operation portion, The thumb turn for a lock device according to any one of claims 1 to 3, wherein the ring member is provided with a ring member side mark that indicates the rotational position of the operating portion.

5. a ring member formed in an annular shape along a circumferential direction of the operation portion, The surface of the front portion is subjected to a spin processing, The thumb turn for a lock device according to any one of claims 1 to 4, wherein the surface of the ring member is subjected to a spin processing.

6. The thumb turn for a lock device according to any one of claims 1 to 5, wherein the inclined surface portion is provided with an operating portion side mark that indicates a rotational position of the operating portion.

Images