Door handles such as flat handles

Abstract

To provide a door handle which can design an indicator relatively freely without being restricted by a dimension of a lock member, regarding a flat handle with an indicator showing locked / unlocked.SOLUTION: In a flat handle which stops a lever 2 in a casing by locking of a lock member 3, an indicator 7 is a separate body from the lever 2 and the lock member 3, is arranged radially outside of the lock member 3, and can displace in the circumferential direction of the lock member 3. An indicator display part 23 exposes part of the indicator 7 to the front side of the lever 2, and a region of the indicator 7 exposed by the displacement changes to display the locked / unlocked state. The indicator 7 includes: a first portion to be contacted pressed by a first contact portion of the lock member 3 by normal rotation of the lock member 3 and for rotating the indicator 7 normally; and a second portion to be contacted pressed by a second contact portion of the lock member 3 by reverse rotation of the lock member 3 and for rotating the indicator reversely. Regarding the circumferential direction of the lock member 3, an interval between both portions to be contacted is made to be smaller than an interval between both contact portions.SELECTED DRAWING: Figure 8

Description

[Technical Field]

[0001] The present invention relates to a door handle such as a flat handle, and more particularly to a door handle such as a flat handle or an L-shaped handle. [Background technology]

[0002] Flat handles for opening, closing, and locking doors are widely used on doors for distribution boxes that house electrical distribution boards. As the above-mentioned flat handle, a type that has a casing with an opening on the front and a lever for opening and closing the door that is provided so that it can be seen and hidden in the opening of the casing, and that can be locked by locking a locking member provided on the lever to keep the lever stored in the casing and prevent the lever from being grasped is becoming popular (Patent Document 1).

[0003] The device shown in Patent Document 1 is provided with an indicator 38 depicted as a colored area on the front end surface of a cylindrical locking member 3, and the indicator 38 is exposed from an indicator display section 23 in an opening 21 (Figs. 3 and 5 of Patent Document 1). By rotating the locking member 3 with a key, the color of the indicator 38 displayed through the indicator display section 23 changes, allowing the user to visually determine whether the locking member 3 is locked or unlocked. The flat handle shown in Patent Document 1 is particularly advantageous in that the structure for attaching the lock member 3 to the lever 2 is simple. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 5964218 Summary of the Invention [Problem to be solved by the invention]

[0005] On the other hand, in the flat handle shown in Patent Document 1, the indicator 38 is depicted as a colored area on the front end surface of the lock member 3, and the area is subject to the dimensions of the lock member 3. The present invention aims to provide a door handle, such as a flat handle or an L-shaped handle, equipped with the indicator, in which the indicator can be designed relatively freely without being restricted by the dimensions of the lock member. [Means for solving the problem]

[0006] The present invention relates to a flat handle having a casing with an opening on its front side, and a lever provided so as to be able to appear and disappear in the opening of the casing, and by locking a locking member provided on the lever, the lever can be kept housed in the casing and cannot be grasped, the lever has an opening on its front side, the locking member is arranged on the rear side of the lever, and at least a part of the front side of the locking member is exposed from the opening to the front side of the lever, the locking member has a key insertion hole on part of the front side, and the locking and unlocking can be performed by inserting a key into the key insertion hole and rotating the locking member, the lever has an indicator and an indicator display part, the indicator is formed separately from the lever and the locking member, and is arranged on the rear side of the lever radially outward of the rotation of the locking member so as to be displaceable in the circumferential direction of the locking member, and the indicator display part is a sub-opening provided in the lever separately from the opening, or is an indicator extending from the opening to the radially outward of the opening The indicator display portion exposes at least a portion of the indicator to the front side of the lever, and the area of ​​the indicator exposed from the indicator display portion changes with the displacement to indicate the locked and unlocked states. With respect to the rotation of the locking member, the locking direction is the forward rotation direction and the unlocking direction is the reverse direction, and the locking member has a first abutment portion facing the forward rotation direction and a second abutment portion facing the reverse rotation direction, and the indicator is pressed against the first abutment portion by the forward rotation of the locking member. The flat handle is provided with a first abutment portion that is pressed by the first abutment portion to rotate the indicator forward when the locking member is rotated in the reverse direction, and a second abutment portion that is pressed by the second abutment portion to rotate the indicator in the reverse direction when the locking member is rotated in the reverse direction, wherein the distance between the first abutment portion and the second abutment portion in the circumferential direction of the locking member is smaller than the distance between the first abutment portion and the second abutment portion, and the angular range of the central angle over which the indicator rotates, i.e., makes the displacement, is smaller than the angular range of the central angle over which the locking member rotates in the circumferential direction of the locking member. In addition, in the present invention, the locking element is approximately cylindrical, has the key insertion hole at one end of the cylinder, and has a lock case on the rear side of the lever that houses the locking element, and the lock case houses a latch piece that appears and disappears from the locking case when the locking element rotates and catches on the casing to lock it, and the indicator has an indicator portion exposed from the indicator display portion and a follower portion that is approximately arc-shaped in front view and is formed integrally with the indicator portion at the rear of the indicator portion and follows the outer surface of the locking element, and in the circumferential direction of the locking element, one end of the follower portion is the first abutment portion and the other end of the follower portion is the second abutment portion, and the follower portion displaces the indicator portion in response to the rotation of the locking element, and a flat handle has been provided. Furthermore, in the present invention, the indicator portion is color-coded in two different colors in two different circumferential areas of the lock member, and a flat handle is provided in which the color seen through the indicator display portion indicates whether the handle is locked or unlocked. Furthermore, the present invention provides an L-shaped handle having, with the front side of a door being the front side and the back side of the door being the rear side, a base fixed to the door, a shaft protruding from the base to the front side and the back side of the base, a rod-shaped lever connected to or formed integrally with the shaft and rotatable relative to the base, and a locking member preventing the lever from rotating relative to the base, wherein an opening is provided on a front side of the lever, and the locking member is rotatably housed in at least one of the lever and the shaft, and at least a part of the front side of the locking member is exposed from the opening to the front side of the lever, and the locking member has a key insertion hole on a part of the front side, and the locking and unlocking can be performed by inserting a key into the key insertion hole and rotating the locking member, and the lever has an indicator, which is formed separately from the lever, the shaft and the locking member and is arranged radially outward of the rotation of the locking member. and the indicator can be displaced in the circumferential direction of the locking member by the forward rotation, and the direction of the indicator changes with the displacement to indicate the locked or unlocked state; the locking direction with respect to the rotation of the locking member is the forward rotation direction and the unlocking direction is the reverse rotation direction, and the locking member has a first abutment portion facing the forward rotation direction and a second abutment portion facing the reverse rotation direction; the indicator has a first abutted portion that is pressed by the first abutment portion during forward rotation of the locking member to rotate the indicator forward, and a second abutted portion that is pressed by the second abutment portion during reverse rotation of the locking member to reverse the indicator; the distance between the first abutment portion and the second abutment portion is smaller in the circumferential direction of the locking member than the distance between the first abutment portion and the second abutment portion; and the angular range of the central angle over which the indicator rotates, i.e., the displacement, is smaller in the circumferential direction of the locking member than the angular range of the central angle over which the locking member rotates. Furthermore, in the present invention, the lever is provided with a cover that can be opened and closed, covering the front surface of the locking member and the indicator, the lever is provided with an indicator display part, and the indicator display part is an opening provided in the cover or a notch provided on the periphery of the cover, the indicator display part exposes at least a part of the indicator to the front surface side of the lever, and the area of ​​the indicator exposed from the indicator display part changes with the displacement, thereby indicating the locked and unlocked states, the locking member is substantially cylindrical, and has the key insertion hole at one end of the cylinder, and has a lock accommodating part that extends from the lever to the inside of the shaft, leads to the opening, and accommodates the locking member, The peripheral surface has a recess that retreats radially outward from the lock accommodating portion as a latch receiving portion, the shaft portion has an opening that penetrates from the lock accommodating portion to the outer peripheral surface of the shaft portion, the lock accommodating portion accommodates a latch piece that appears and disappears from the opening when the lock member is rotated and engages with the latch receiving portion to perform the locking, the indicator has an indicator portion exposed from the indicator display portion and a follower portion that is integral with the indicator portion and has a generally arc-shaped shape in a front view that follows the outer peripheral surface of the lock member, one end of the follower portion being the first abutment portion in the circumferential direction of the lock member and the other end of the follower portion being the second abutment portion, and an L-shaped handle has been provided in which the follower portion follows the rotation of the lock member to displace the indicator portion. [Effects of the Invention]

[0007] In the door handle such as the flat handle of the present invention, the indicator is separate from the locking member, so that the indicator can be designed without being restricted by the size of the locking member. Therefore, the indicator can be made relatively large and easily visible. In addition, there is no longer any need to restrict the placement of the indicator display unit to the vicinity of the lock member. In particular, by making the rotation range of the indicator smaller than the rotation range of the locking member, it is possible to provide an indicator that is not restricted by the size of the locking member, without enlarging the lever. Furthermore, the indicator can be provided with a relatively simple structure while suppressing an increase in the number of parts. In particular, in the door handles including the flat handles and L-shaped handles of the present invention, the locking element, which locks and unlocks by rotation, is connected to the indicator without any other components passing through, and the rotational force is transmitted directly from the locking element to the indicator, and the indicator also rotates concentrically with the locking element. This provides a handle with an extremely simple structure that minimizes the number of parts, thereby achieving the above-mentioned effects. [Brief explanation of the drawings]

[0008] [Figure 1] 1A is a front view showing the use state of the flat handle according to the first embodiment of the present invention with the lever closed, FIG. 1B is a side view of FIG. 1A, and FIG. 1C is a rear view of the fixing member shown in FIG. 1B. [Figure 2] (A) is a front view of the above-mentioned flat handle in the unlocked state with the lever closed, (B) is a schematic cross-sectional view of (A) taken along x1-x1, and (C) is a schematic cross-sectional view of (A) taken along x2-x2. [Figure 3] (A) is a front view of the flat handle in the locked state with the lever closed, (B) is a simplified cross-sectional view of (A) taken along x3-x3, and (C) is a simplified cross-sectional view of (A) taken along x4-x4. [Figure 4] (A) is an enlarged front view of the indicator in Figure 1(A), (B) is a left side view of (A), (C) is a right side view of (A), (D) is a plan view of (A), (E) is a bottom view of (A), (F) is a back view of (A), and (G) is a x5-x5 cross-sectional view of (F). [Figure 5] (A) is an enlarged, partially cutaway front view of the lever in Figure 2(A), (B) is a bottom view of the locking member with the tangiciator shown in (A) attached, (C) is a right side view of the locking member shown in (B), and (D) is a x6-x6 cross-sectional view of (B). [Figure 6] (A) is a partially cutaway enlarged front view of the locking member during the operation of locking from the unlocked state shown in Figure 4(A), (B) is a bottom view of the locking member with the indicator shown in (A) attached to it, (C) is a right side view of the locking member shown in (B), and (D) is a x7-x7 cross-sectional view of (B). [Figure 7](A) is an enlarged, partially cutaway front view of the lever in Figure 2(A), (B) is a bottom view of the locking member to which the indicator shown in (A) is attached, (C) is a right side view of the locking member shown in (B), and (D) is an x8-x8 cross-sectional view of (B). [Figure 8] (A) is an enlarged, partially cutaway front view of the locking member during the unlocking operation from the locked state shown in Figure 6(A), (B) is a bottom view of the locking member with the indicator shown in (A) attached to it, (C) is a right side view of the locking member shown in (B), (D) is a x9-x9 cross-sectional view of (B), and (E) is an explanatory diagram showing the movable range (movable angle) of the indicator. [Figure 9] 1A is a schematic cross-sectional view showing the state in which the lever of the flat handle in the unlocked state shown in FIG. 1B is raised, and FIG. 1B is a schematic cross-sectional view showing the state in which the lever of the flat handle in the unlocked state shown in FIG. 1C is raised. [Figure 10] (A) is an enlarged exploded cross-sectional view of the lever of Figure 2(B) with a partial cutaway showing the process of attaching the indicator to the lever before attaching the locking member and lock case to the lever during the manufacture of the flat handle; (B) is an enlarged exploded cross-sectional view of the main part with a partial cutaway showing the process of attaching the lock case to the lever of (A); and (C) is an enlarged exploded cross-sectional view of the main part with a partial cutaway showing the process of attaching the locking member to the lever of (B) with the lock case attached. [Figure 11] (A) is an enlarged cross-sectional view of a part cut away showing the state in which the locking member has been attached to the lever of Figure 10(C), (B) is a cross-sectional view taken along x10-x10 of Figure 10(A), (C) is a schematic cross-sectional view taken along x11-x11 of Figure 10(B) showing the arrangement of the indicators of Figure 5(A) from the back side of the lever, and (D) is a schematic cross-sectional view taken along x11-x11 of Figure 10(B) showing the arrangement of the indicators of Figure 7(A) from the back side of the lever. [Figure 12] 10A is an enlarged rear view of the main part with a partial cutaway before the lock member and lock case are attached to the lever during manufacturing of the flat handle, and FIG. 10B is a perspective view showing another embodiment of the flat handle h. [Figure 13] 10A is a front view showing an L-shaped handle according to a second embodiment of the present invention in use, and FIG. 10B is a side view of FIG. [Figure 14](A) is a front view of the L-shaped handle shown before use, excluding the latch, and (B) is a x10-x10 schematic cross-sectional view of (A). [Figure 15] 15A is a front view of the L-shaped handle shown in FIG. 14 with the cover open when unlocking, and FIG. 15B is a schematic cross-sectional view of FIG. 14A taken along the line x11-x11. [Figure 16] (A) is a front view of the L-shaped handle shown in Figure 15(A) without the cover, (B) is a schematic cross-sectional view of (A) at x12-x12, (C) is a schematic cross-sectional view of the L-shaped handle at the x13-x13 position shown in (B), and (D) is a schematic cross-sectional view of the L-shaped handle at the x14-x14 position shown in (B). [Figure 17] 15A is a front view of the L-shaped handle shown in FIG. 14 with the cover open when locked, and FIG. 15B is a front view of the L-shaped handle of FIG. 14 with the cover removed. [Figure 18] (A) is a schematic cross-sectional view of x15-x15 in Figure 17(B), (B) is a schematic cross-sectional view of the L-shaped handle at the x16-x16 position shown in (A), (C) is a schematic cross-sectional view of the L-shaped handle at the x17-x17 position shown in (A), and (D) is an explanatory diagram showing the movable range (movable angle) of the indicator shown in Figures 16(A) and 17(B). [Figure 19] (A) is a front view of the essential parts showing the orientation of the locking member and indicator when the L-shaped handle in Figure 16(A) is unlocked, (B) is a front view of the essential parts of the L-shaped handle when the locking member has started to rotate from the state in (A) in the direction to lock, (C) is a front view of the essential parts showing the orientation of the locking member and indicator when the L-shaped handle in Figure 17(B) is unlocked, (D) is a bottom view of the locking member and indicator in (A), (E) is a bottom view of the locking member and indicator in (B), (F) is a bottom view of the locking member and indicator in (C), (G) is a simplified x18-x18 cross-sectional view of (D), (H) is a simplified x19-x19 cross-sectional view of (E), and (I) is a simplified x20-x20 cross-sectional view of (F). DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. For convenience of explanation, in each drawing, U denotes the upper side, S denotes the lower side, F denotes the front side, and B denotes the rear side.

[0010] (overview) A door handle according to a preferred embodiment of the present invention is provided on a door t2 of a switchboard box and is used as a handle for the door, and also serves to lock the door. (First embodiment) Therefore, the flat handle h according to this embodiment is attached to the door t2 of the switchboard box and used as a handle for the door. The flat handle h also locks the door (FIGS. 1(A) and 1(B)).

[0011] That is, the flat handle h is inserted into a mounting hole t4 provided on a handle mounting surface t3 of the door t2 and fixed to the door t2 (FIG. 1(B)). When the door t2 is closed, the flat handle h causes a latch j to protrude from the tip of the door t2, and the latch j is engaged with a latch receiving portion t6 provided on the main body t1 of the switchboard box t (FIG. 1(A)). The flat handle h includes a casing 1 inserted into the mounting hole t4 and a lever 2 that rises and falls relative to the casing 1, which has an open front (FIGS. 1(A)(B) and 9(A)(B)). When the lever 2 is opened from the casing 1, the lever 2 can be rotated relative to the casing 1, i.e., the door t2 (FIGS. 9(A)(B)). The latch j rotates due to the above-mentioned rotational operation of the lever 2. By this rotational operation of the lever 2, the latch j is released from the latch receiving portion t6, and the door t2 can be opened (FIGS. 1(A) and 1(B)).

[0012] The lever 2 is equipped with a locking member 3 for locking, and when locked, the lever 2 remains housed in the casing 1 so that it cannot be gripped, and when unlocked, the lever 2 is raised and rotated, disengaging the latch j from the latch receiving portion t6 and allowing the door t2 to be opened. The locking member 3 is housed in a lock case 4 and attached to the lever 2. The lever 2 houses an indicator 7 that shows the locked / unlocked state of the locking member 3, and the state of the indicator 7 is displayed on an indicator display portion 23 provided on the lever 2. The lever 2 is equipped with an indicator housing portion that houses the indicator 7. The configuration of each part will be described in detail below.

[0013] (Casing 1) The casing 1 includes a casing body 10, a fixing member 11, and a packing 12 (FIG. 1(B)). The fixing member 11 and the packing 12 are each formed separately from the casing body 10 (FIGS. 1(B) and (C)). The casing body 10 is formed with a storage section 13 and a flange 14. The storage section 13 is a recess that retreats rearward from the front of the casing body 10 and stores the lever 2. The storage section 13 is a protrusion on the back side of the casing body 10. The lever 2 appears and disappears from an opening 13e of the storage section 13 that opens to the front of the casing body 10 (FIGS. 9(A) and (B)).

[0014] In this example, the storage section 13 extends vertically and the lever 2 is stored vertically with its tip pointing downward. However, the storage section 13 may also extend horizontally and store the lever 2 horizontally (not shown). The accommodation portion 13 has a first recessed portion 13a that accommodates the tip side of the lever 2, and a second recessed portion 13b that is formed continuously with the first recessed portion and accommodates the base side of the lever 2 (Figures 1(B), 2(B)(C), 3(B)(C) and 9).

[0015] The inside of the first receding portion 13a is set further rearward than the inside of the second receding portion 13b. The first receding portion 13a accommodates the lock case 4 attached to the lever 2 when the lever 2 is closed. A latch receiving portion 17 is provided on the inner surface of the first recessed portion 13a (FIGS. 2(B) and 2(C), 3(B) and 3(C), and 9). In this example, the latch receiving portion 17 is a recess provided on the upper surface of the inner surface of the first recessed portion 13a. However, the latch receiving portion 17 can also be formed as a protrusion protruding from the upper surface as long as it can catch the latch piece 44 of the locking member 3. The latch receiving portion 17 can also be a recess provided on the lower surface of the first recessed portion 13a, or the latch receiving portion 17 can also be formed as a protrusion protruding from the lower surface (not shown).

[0016] In the first recessed portion 13a, a space (extended space 80) for accommodating the push button 8 is extended toward the tip (lower) side of the lever 2 from the space accommodating the lock case 4, and the push button 8 is provided in the extended space 80. The extended space 80 is also open on the front side of the lever 2, exposing the push button 8 to the outside of the lever 2. The part of the push button 8 exposed to the outside of the lever 2 is the pressing surface to be pressed with a fingertip. More specifically, the push button 8 comprises a pressing part 82 with the pressing surface facing forward, and a pivot part 81 that protrudes rearward from the back surface of the pressing part 82 and is pivotally fixed to the casing main body 10 within the extended space 80. By pressing the pressing surface of the push button 8 (pressing part 82), the push button 8 can be rotated around the pivot part 81. This rotation causes the upper side of the pressing part 82 of the push button 8 to open forward. The push button 8 is constantly biased in a direction against the above-mentioned pressure by a biasing means (not shown) such as a spring, and when the above-mentioned pressure is released, the pressing portion 82 returns to its original orientation.

[0017] A cylindrical portion 13c is formed on the second recessed portion 13b on the side opposite to the first recessed portion 13a, i.e., on the upper end side of the second recessed portion 13b in this example (Figures 1(B), 2(B)(C), 3(B)(C) and 9). Inside the cylindrical portion 13c, a through-hole 13d is provided which passes through the casing main body 10 in the front-rear direction (FIGS. 2(B) and (C), 3(B) and (C), and 9).

[0018] The flange 14 is a brim provided on the periphery of the opening 13e of the storage section 13 and comes into contact with the mounting surface t3 of the door t2 (FIGS. 1(B) and 9(A) and (B)). The rear side of the storage section 13 protruding from the rear surface of the casing body 10 is inserted into the mounting hole t4 of the door t2 (FIG. 1(B)).

[0019] The packing 12 is formed in an annular shape and is attached to the rear surface of the flange 14 before the casing 1 is attached to the attachment hole t4 of the door t2. In this example, the packing 12 is formed in a substantially oval shape in a front view to match the shape of the rear surface of the flange 14. The packing 12 is made of rubber, urethane, plastic, or other elastic and waterproof material. The annular packing 12 is disposed on the rear surface of the casing body 10 so as to surround the accommodating portion 13 . By providing the packing 12 on the rear surface of the flange 11, it is possible to improve the sealing performance between the flange 14 and the mounting surface t3 of the door t2.

[0020] With the storage section 13 inserted into the mounting hole t4, the fixing member 11 is disposed on the back side of the storage section 13 and fixed by a well-known fastening member 16. The flange 14 and the fixing member 11 sandwich the portion of the door t2 where the mounting surface t3 is provided from the front and rear, thereby fixing the flat handle h to the door t2.

[0021] The fastening member 16 can be a well-known fastening means such as a screw, bolt, or pin. Specifically, the fastening member 11 includes two holding portions 11a that extend vertically and are aligned laterally, and a connecting portion 11b that is provided between the holding portions 11a and connects the holding portions 11a (FIGS. 1(B) and 1(C)). The connecting portion 11b is provided with a fastening member insertion portion 11c through which the fastening member 16 passes. The fastening member insertion portion 11c can be formed as a hole or notch that penetrates the connecting portion 11b from front to back. The connecting portion 11b is fixed to the back surface of the storage section 13 by the fastening member 16. When fixed, the holding portions 11a are positioned behind the flange 14, sandwiching the portion of the door t2 where the mounting surface t3 is provided (FIG. 1(B)).

[0022] (Lever 2) The lever 2 is shaped as a handle for opening and closing the door t2 (Figs. 1(A)(B), 2, 3 and 9). The lever 2 is attached to the casing 1 so that it can be raised and lowered. When the lever 2 is raised, i.e., when it is opened from the casing 1 (Fig. 9), it becomes rotatable and can rotate the latch j. The lever 2 is formed with a hinge portion 20, a hook portion 5, an opening 22, and a lock mounting portion 24 (FIGS. 2(B) and 2(C) and 10).

[0023] The hinge portion 20 is provided on the rear surface of the base of the lever 2 (Figs. 2(B)(C), 3(B)(C) and 9). The lever 2 can be raised and lowered relative to the casing 1 around this hinge portion 20. The hinge portion 20 is formed by pivotally fastening a base body 20a, which is formed separately from the lever 2, to the rear surface of the base of the lever 2 by a horizontal shaft 20b extending laterally to the left and right. A well-known pin can be used for the horizontal shaft 20b.

[0024] In this example, the base body 20a is a cylinder whose height is smaller than the diameter of a disk or the like, and is housed in the tubular portion 13c of the housing portion 13. The center line (imaginary line) of the base body 20a is approximately aligned with the center line (imaginary line) of the tubular portion 13c, and both extend in the front-rear direction. A shaft g extending in the front-rear direction is inserted through the through-hole 13d (Figs. 2(B)(C), 3(B)(C), and 9). The front end of the shaft g is connected to the base body 20a and is integral with the base body 20a. The shaft g is provided on the base body 20a so as to be concentric with the base body 20a. The latch j is fixed to the base end of the shaft g (Fig. 1(B)).

[0025] By raising and rotating the lever 2, the base body within the cylindrical portion 13c rotates together with the shaft g, causing the latch j to rotate (FIGS. 1(A) and 9). Although not shown, the lever 2 is constantly biased in the upright direction by a biasing body such as a spring from the casing 1, i.e., from the housing portion 13 of the casing body 10. Therefore, when lowering the lever 2 into the casing 1, it is necessary to push the lever 2 into the housing portion 13 of the casing body 10 against the biasing force of the biasing body.

[0026] The hook portion 5 is a protrusion that protrudes downward from the tip of the lever 2, and when the lever 2 is in a state where it is laid down on the casing 1, it catches on the upper end of the pressing portion 82 of the push button 8, thereby keeping the lever 2 in the laid down state. When the push button 8 is pressed and the upper end of the pressing portion 82 opens, the lever 2 stands up from the housing portion 13 of the casing main body 10 due to the biasing force of the biasing body (FIG. 9).

[0027] The opening 22 is a circular through-hole seen from the front, which penetrates the lever 2 from front to rear, and is formed closer to the tip of the lever 2 than the hinge portion 20 (Figs. 2, 3, 9 to 11). The opening 22 is used to insert a key into the lock member 3 provided on the lever 2 to lock and unlock. The opening 22 constitutes a key operation portion for operating the key (hereinafter, the opening 22 will be referred to as the key operation portion 22 as necessary). That is, the key can be inserted from the key operation portion 22 into the key insertion hole 33 of the lock member 3 to rotate the lock member 3. The key operation portion 22 is not limited to the circular shape as long as it allows the rotational operation of the shaped member 3 with a key.

[0028] An indicator display part 23 is provided in the vicinity of the opening 22 in the lever 2. In this example, the syndicator display part 23 is also a through hole that penetrates the lever 2 from front to rear. In this example, the indicator display section 23 is a through-hole that is provided above the key operating section 22 (opening 22) and penetrates the lever 2 from front to back. A part of the indicator 7 (the front of an indicator section 71 described later, i.e., the display area of ​​the indicator section 71 described later) housed in the lever 2 can be exposed to the outside of the lever through the indicator display section 23. In other words, the indicator display section 23 is a small window that exposes a part of the indicator 7 housed in the indicator housing section to the outside of the lever 2.

[0029] The above rotation of the lock member 3 causes the indicator 7 to be pushed by the lock member 3 and displaced within the indicator housing, thereby changing the display area (exposed area) of the indicator 7 visible from the indicator display unit 23. This flat handle h can display the locked / unlocked state by the display area of ​​the indicator 7 visible through the indicator display unit 23. Details of the lock member 3, including the key insertion hole 33 and the indicator 7, will be described later.

[0030] The lock mounting portion 24 is formed on the rear surface of the lever 2, i.e., the surface of the lever 2 facing the storage portion 13 of the casing 1, closer to the tip of the lever 2 than the hinge portion 20 (Figure 10), and the lock mounting portion 24 is located behind the opening 22 (key operating portion 22). The lock attachment portion 24 includes a case attachment portion 25 and a fitting portion 26 (FIGS. 10 and 12(A)).

[0031] The case mounting portion 25 is a portion where the lock case 4 is fixed. The case attachment portion 25 is a portion on the rear surface of the lever 2 that is recessed (recessed) toward the front of the lever 2 from the left and right portions of the case attachment portion 25 (lever side edges 29a). As will be described in detail later, the lock case 4 is fixed to the case mounting portion 25 with well-known fasteners 28 such as screws, bolts, pins, adhesives, welding, etc. In this embodiment, the lock case 4 is attached to the case mounting portion 25 with screws as fasteners 28, and the case mounting portion 25 is provided with threaded holes as fastening holes 27.

[0032] More specifically, a case mounting portion 25 is provided above the opening 22 on the rear surface of the lever 2. A fitting portion 26 is provided below the opening 22 on the rear surface of the lever 2, and fits into a fitted portion 43b formed on the lower front surface of the lock case 4. In this example, the fitting portion 26 is a dovetail groove having an inverted V-shaped cross section (in plan view), and the fitted portion 43b is a "tenon" that fits into the dovetail groove. Conversely to the above example, the fitted portion 43b may be a dovetail groove and the fitting portion 26 may be the "tenon".

[0033] On the rear surface of the lever 2, a recessed portion 29 is provided between the case mounting portion 25 and the opening 22, which is recessed further forward of the lever 2 than the case mounting portion 25. The indicator accommodating portion is a space surrounded by the inner surface of the lever side edge 29a that protrudes rearward from the retracted portion 29 and the case mounting portion 25, the step (step surface 29b) between the retracted portion 29 and the case mounting portion 25, the outer peripheral surface of the rotor 30 of the lock member 3 that is attached through the opening 22, and the mounted portion 43 (of the lock case 4 described below) (Fig. 10(A), Fig. 11(B)-(D), Fig. 12(A)). The indicator 7 is accommodated in the indicator accommodating portion. In lever 2, indicator display portion 23 is provided in retracted portion 29, penetrating through to the front side of lever 2. The periphery of indicator display portion 23 in retracted portion 29 forms a mask portion that covers indicator 7 when lever 2 is viewed from the front.

[0034] The lock member 3 in this example is a tumbler lock, and includes a cylindrical rotor 30 that houses multiple driver pieces 34 (FIGS. 10(C) and 11(A)). The central axis (imaginary line) of the cylindrical rotor 30 extends in the front-to-rear direction (the central axis passes through the center O in FIG. 8(E) and FIGS. 11(B) to (D)). The rotor 30 has the aforementioned key insertion hole 33 on the front surface 31 and a protrusion 36 on the rear surface 32 (Figures 1(A), 2, 3, 5 to 9, 10(C) and 11(A)). The plurality of driver pieces 34 are housed in the rotor 30 so as to be able to freely protrude from and retract into the outer periphery of the rotor 30. The plurality of driver pieces 34 are arranged in the axial direction of the rotor 30. Each of the driver pieces 34 is biased by a resilient biasing member (not shown) and protrudes from the outer periphery of the rotor 30. A spring can be used as the biasing member.

[0035] Furthermore, the rotor 30 houses a retaining piece 35 so that it can freely protrude from and retract into the outer circumferential surface of the rotor 30 (FIGS. 10(C) and 11(A)). The retaining piece 35 is biased by an elastic biasing member (not shown) and protrudes from the outer circumferential surface of the rotor 31. In this example, the retaining piece 35 is located behind the row of driver pieces 34. A spring can also be used as the biasing member for the retaining piece 35.

[0036] The front side 30a of the rotor 30 having the front surface 31 has a larger diameter than the rear side 30b of the rotor 30 where the driver piece 34 appears (FIG. 10(C)). The rotation transmitting portion 37 is provided on the outer periphery of the front end of the rear side 30b, and is raised higher than other portions of the rear side 30b. The rotation transmitting portion 37 is an arc-shaped protrusion provided along the circumferential direction of the rotor 30. The width of the protrusion of the rotation transmitting portion 37 does not exceed the outer periphery of the front side 30a of the rotor 30 in the radially inward and outward directions.

[0037] The rotation transmission part 37 is formed over a range of central angles of approximately 180 degrees in the circumferential (rotational) direction of the rotor 30, corresponding to the rotation angle (approximately 180 degrees) of the lock member 3 with the key inserted. However, when using a lock member 3 with a rotation angle other than 180 degrees, the rotation transmission part 37 may be formed over a range of central angles other than 180 degrees that corresponds to the rotation angle of the lock member 3. In this example, with respect to the rotation direction (circumferential direction) of the rotor 30, the locking direction is the forward direction and the unlocking direction is the reverse direction, and the end of the rotation transmission part 37 facing the forward direction forms the first abutment part 37a, and the end of the rotation transmission part 37 facing the reverse direction forms the second abutment part 37b (Figures 5(B) to (D), Figures 6(B) to (D), Figures 7(B) to (D), and Figures 8(B) to (D)).

[0038] The rotor 30 of the illustrated lock member 3 (tumbler lock) has a cross hole 37e that intersects with the key insertion hole 33, and one opening of the cross hole 37e cuts off the rotation transmission part 37 in the circumferential direction (rotation direction) of the rotor 30. Strictly speaking, therefore, the rotation transmission part 37 is made up of a leading part 37c that leads during normal rotation and a trailing part 37d that follows during normal rotation, with the cutting part sandwiched between them, and with respect to the rotation direction, the first abutment part 37a is the end of the leading part 37c facing the normal rotation direction, and the second abutment part 37b is the end of the trailing part 37d facing the reverse rotation direction.

[0039] However, the rotation transmission unit 37 may be considered continuous, ignoring the interrupted sections (i.e., the interrupted sections do not exist). This example uses a general-purpose tumbler lock as the lock member 3, and the flat handle h in this embodiment does not use the cross hole 37e, so the rotation transmission unit 37 may be implemented without the cross hole 37e. Even if the cross hole 37e is not provided, the interrupted sections may be included, and the rotation transmission unit 37 may be configured with two discontinuous sections (sections): the leading section 37c and the trailing section 37d. Furthermore, the rotation transmission unit 37 may be configured with three or more interrupted sections in the circumferential direction of the rotor 30, or three or more protrusions protruding radially outward from the rotor 30, with the first contact section 37a being the section facing the forward rotation direction of the leading section or protrusion during forward rotation, and the second contact section 37b being the section facing the reverse rotation direction of the trailing section or protrusion during forward rotation.

[0040] With regard to each of the driver pieces 34 of the lock member 3, by inserting a key (not shown) into the rotor 30 through the key insertion hole 33, each driver piece 34 sinks into the rotor 30, making it possible to rotate the key. The protrusion 36 is provided on the rear surface 32 of the rotor 30 at a position eccentric from the central axis of the rotor 30, and rotates as the lock member 3 (rotor 30) rotates.

[0041] The lock case 4 also has a latch accommodating section 41, a lock accommodating section 42 provided in front of the latch accommodating section 41, an attachment section 43, and the latch piece 44 formed separately from the lock case 4 and accommodated in the latch accommodating section 41 (Figures 10(B)(C) and 11(A)). The interior of the latch accommodating portion 41 is sized to allow the latch piece 44 to slide smoothly up and down. The latch accommodating portion 41 has an opening 41a on its side surface through which the latch piece 44 appears and disappears. In this example, the opening 41a is provided on the upper side of the latch accommodating portion 41, and allows the latch piece 44 to appear and disappear upward.

[0042] The rear side 30b of the rotor 30 of the lock member 3 can be accommodated in the lock accommodating section 42. The inner diameter of the lock accommodating section 42 is approximately equal to or slightly larger than the outer diameter of the rear side 30b of the rotor 30, so that the rotor 30 can rotate smoothly relative to the lock case 4 when the driver piece 34 is retracted.

[0043] The lock accommodating portion 42 has a first driver receiving portion 42a, a second driver receiving portion 42b, and a retaining latch portion 42c on its inner circumferential surface. The first driver receiving portion 42a and the second driver receiving portion 42b are grooves that are provided on the inner circumferential surface of the lock accommodating portion 42 and extend along the axial direction of the cylindrical lock accommodating portion 42. In this example, on the inner circumferential surface of the lock accommodating portion 42, the first driver receiving portion 42a is provided on the upper side of the lock case 4, and the second driver receiving portion 42b is provided on the opposite lower side.

[0044] The retaining latch portion 42c is disposed behind the lock case 4 with respect to the first and second driver receiving portions 42a, 42b. The retaining latch portion 42c is a groove that extends along the circumferential direction of the lock accommodating portion 42. Although not shown, a small hole that communicates with the retaining latch portion 42c of the lock accommodating portion 42 is provided in the lock case 4, and when the lock member 3 is to be removed from the lock case 4, a pin is inserted through the small hole to cause the retaining piece 35 to sink from within the retaining latch portion 42c.

[0045] The mounting portion 43 is a flat plate-like portion that protrudes radially outward from the front end of the lock accommodating portion 42. The mounting portion 43 is provided with a hole 43a through which the fastener 28 can be inserted. A protrusion receiving portion 44a is provided on the latch piece 44. The protrusion receiving portion 44a is a notch provided on the side of the latch piece 44.

[0046] The lock case 4 houses the lock member 3. During assembly, the indicator 7 is first housed in the lever 2, and then the lock case 4 is attached to the lever 2. After that, the rear side 30b of the lock member 3 is inserted into the lever 2 through the opening 22 from the front side of the lever 2 (Figures 10 and 11(A)).

[0047] In detail, the lock case 4 is attached to the lever 2 by moving the lock case 4 toward the lever 2 from behind the lever 2 and sliding the case 2 downward, thereby fitting the fitted portion 43b into the fitting portion 26. After fitting the fitted portion 43b into the fitting portion 26, the fastener 28 is passed through the hole 43a of the attached portion 43 provided in the lock case 4, and the fastener 28 is fixed to the fastening hole 27. In this example, the fastener 28, which is a screw, can be fixed by screwing the fastener 28 into the fastening hole 27, which is a screw hole.

[0048] Although not shown in the drawings, when storing the lock member 3 (rotor 30) in the lock case 4, the key is inserted into the key insertion hole 33 of the rotor 30 and each driver piece 34 is recessed within the rotor 30 before the storage. The retaining pieces 35 are then pressed with the fingers to retract them and pressed against the inner peripheral surface of the lock storage section 42, and the rotor 30 is stored in the lock storage section 42 with the retaining pieces 35 remaining recessed. When the rotor 30 is accommodated as described above, the driver piece 34 is aligned with the second driver accommodating portion 42b. The retaining piece 35 protrudes from the rotor 30 at the retaining locking portion 42c to prevent the rotor 30 from falling off. Furthermore, the key is removed from the rotor 30, causing the driver piece 34 to protrude into the second driver accommodating portion 42b. With the driver piece 34 protruding into the second driver accommodating portion 42b, the rotor 30 cannot rotate.

[0049] By accommodating the rotor 30 as described above, the protrusion 36 of the rotor 30 enters the protrusion receiving portion 44a of the latch piece 44 within the latch accommodating portion 41. At this time, that is, when the driver piece 34 protrudes into the second driver accommodating portion 42b, the protrusion 36 is positioned downward within the latch accommodating portion 41, and the latch piece 44 is in a state of being submerged within the latch accommodating portion 41.

[0050] In this example, when the key is inserted and the lock member 3 is attached to the lever 2, and then the key is removed without turning, the driver piece 34 protrudes into the second driver receiving portion 42b. When the driver piece 34 is in the second driver receiving portion 42b, the latch piece 44 is recessed in the rotor 30 (latch accommodating portion 41), and when the push button 8 is pressed, the lever 2 rises from the casing 1 (Fig. 9).

[0051] To lock the locking member 3 after attaching the lever 2 to the casing 1, the key is inserted so that the driver piece 34 is recessed into the rotor 30, and the key is then rotated to rotate the locking member 3. This rotation of the locking member 3 causes the driver piece 34 to reach the first driver receiving portion 42a, and when the key is removed, the driver piece 34 protrudes into the first driver receiving portion 42a. When the driver piece 34 is in the first driver receiving portion 42a, the protrusion 36 of the rotor 30 is positioned upward, causing the latch piece 44 to protrude (upward) from the opening 41a to engage with the latch receiving portion 17, thereby locking the locking member 3 (FIGS. 3(B)(C)). To unlock, insert the key into the key insertion hole 33 again and rotate the key in the opposite direction (reverse rotation) to move the protrusion 36 downward and cause the latch piece 44 to sink into the lock case 4 (Figures 2(B)(C)).

[0052] The indicator 7 is a member formed separately from the lever 2 and the lock member 3, and as described above, the indicator 7 is housed in the indicator housing portion of the lever 2 (Figs. 4 to 8, Figs. 11(B) and (C)). The indicator 7 comprises an indicator section 71, the front of which is partially exposed from the indicator display section 23, and a follower section 72 which is formed integrally with the indicator section 71 at the rear of the indicator section 71 and which is generally arc-shaped in front view and follows the outer peripheral surface of the lock member 3 (Figures 4, 5(B) to (D), 6(B) to (D), 7(B) to (D), 8(B) to (D), and 11(C) to (D)).

[0053] The indicator portion 71 is a thin plate-like body that is thin in both the front and rear. When viewed from the front, the upper and lower edges of the indicator portion 71 each have an upwardly convex arc shape. The lower edge is aligned with the outer peripheral surface of the front side 30a of the rotor 30 (FIG. 11). The front of the indicator section 71 is a display area 70 that displays the locked / unlocked state (FIGS. 4 to 8). The display area 70 is color-coded according to the rotation direction (circumferential direction) of the rotor 30. Specifically, in the drawing, the area with grid lines (locked display area) and the area with spots (unlocked display area) are colored differently (FIG. 4(A)). The locked area with grid lines indicates the locked state of the locking member 3, and the unlocked area with spots indicates the unlocked state of the locking member 3. In this example, the locked area with the grid lines is colored green, and the unlocked area with the spots is colored red within the display area 70. However, this color scheme is merely an example, and other color schemes may be used, or each area may be distinguished by letters, symbols, pictures, or the like instead of by color, or each area may be distinguished by colored and uncolored areas.

[0054] In this example, the follower part 72 is connected to the indicator part 71 via a collar part 73 extending rearward from the lower edge of the indicator part 71, and a neck part 74 extending from one end of the collar part 73 in the circumferential direction of the arc of the lower edge (FIG. 4). The width of the follower part 72 in the front-to-rear direction is greater than the width of the neck part 74 in the front-to-rear direction, and the end part of the follower part 72 in the circumferential direction that connects to the neck part 74 has a shoulder part that protrudes rearward beyond the neck part 74. In the circumferential direction, the end part of the follower part 72 opposite the neck part 74 is referred to as a first abutted part 7a, and the shoulder part is referred to as a second abutted part 7b.

[0055] When viewed from the front of the lever 2, the aforementioned first abutment portion 37a of the rotation transmission portion 37 of the lock member 3 and the first abutted portion 7a of the indicator 7 are located on the same circumference, and when the lock member 3 rotates, the first abutment portion 37a pushes and rotates the first abutted portion 7a. Furthermore, when viewed from the front of the lever 2, the aforementioned second abutment portion 37b of the rotation transmission portion 37 of the lock member 3 and the above-mentioned second abutted portion 7b of the indicator 7 are also located on the same circumference, and when the lock member 3 rotates in the opposite direction (reverses), the second abutment portion 37b pushes and rotates the second abutted portion 7b. The circumference on which the first abutment portion 37a and the first abutted portion 7a are arranged and the circumference on which the second abutment portion 37b and the second abutted portion 7b are arranged do not have to be the same in diameter or front-to-back position, but since this allows the surrounding configuration of the indicator accommodating portion and the like to be compact, it is preferable that the circumference on which the first abutment portion 37a and the first abutted portion 7a are arranged and the circumference on which the second abutment portion 37b and the second abutted portion 7b are arranged have approximately the same diameter and front-to-back position.

[0056] On the other hand, in the circumferential direction of the lock member 3 (rotor 30), the distance between the first abutment portion 7a and the second abutment portion 7b of the indicator 7 (the length of the arc formed by the driven portion 72 on the circumference) is smaller than the distance between the first abutment portion 37a and the second abutment portion 37b (the length of the arc formed by the rotation transmission portion 37 on the circumference). Specifically, the central angle φ of the arc between the first abutment portion 37a and the second abutment portion 37b in the rotation transmission portion 37 is approximately 180 degrees (semicircle), while the central angle θ of the arc between the first abutted portion 7a and the second abutted portion 7b in the follower portion 72 is an acute angle (Figure 8(E)).

[0057] When the protrusion 36 is positioned downward, the latch piece 44 is stopped within the latch accommodating portion 41, and the latch piece 44 has not entered the latch receiving portion 17, that is, when the lever 2 is in an unlocked state in which it can be raised by pressing the push button 8, the indicator 7 (indicator portion 71) exposes the unlocked display area in the display area 70 from the indicator display portion 23 to the outside of the lever 2, thereby indicating that the lever 2 is in an unlocked state (Figures 2 and 5(A)).

[0058] When locking, the lock member 3 is rotated (forward) by operating the key (FIG. 6), and the first abutting portion 37a of the rotation transmission portion 37 of the lock member 3 abuts against the first abutted portion 7a of the indicator 7 and presses the first abutted portion 7a, thereby displacing the indicator 7 inside the indicator accommodating portion (FIG. 7(D)). Due to this displacement of the indicator 7, the position of the display area 70 of the indicator unit 71, which is exposed from the indicator display unit 23, changes from the unlocked display area to the locked display area (FIGS. 3 and 7(A)).

[0059] When unlocking again, the lock member 3 is rotated (reversely) by operating the key (FIG. 8), and the second abutting portion 37b of the rotation transmission portion 37 of the lock member 3 abuts against the second abutted portion 7b of the indicator 7 and presses the second abutted portion 7b (FIG. 5(D)), thereby displacing the indicator 7 in the indicator accommodating portion to its original position before locking (FIG. 5). Due to this displacement of the indicator 7, the position of the display area 70 of the indicator unit 71, which is exposed from the indicator display unit 23, changes from the locked display area to the unlocked display area (FIGS. 2 and 5(A)).

[0060] As mentioned above, in the circumferential direction of the lock member 3 (rotor 30), the length of the driven part 72 between the first abutment portion 7a and the second abutment portion 7b is shorter than the length between the first abutment portion 37a and the second abutment portion 37b of the rotation transmission part 37, and in the circumferential direction of the lock member 3 (rotor 30), the angular range of the central angle in which the indicator 7 rotates (displaces) is smaller than the angular range (of the central angle) in which the lock member 3 rotates when the key is operated.

[0061] Therefore, in the above-described locking and unlocking operation, even if the lock member 3 is rotated (forward) in the locking direction by operating the key from the unlocked state of the lock member 3 (Fig. 5(D)), the first abutment portion 37a does not immediately abut against the first abutted portion 7a of the indicator 7 (Fig. 6(D)). In the unlocked state, there is a gap between the first abutment portion 37a and the first abutted portion 7a, and this gap serves as a running section in the circumferential direction of the lock member 3. After passing through the running section, the first abutment portion 37a abuts against the first abutted portion 7a and pushes the first abutted portion 7a, causing the indicator 7 to rotate with a delay after the lock member 3 (Fig. 7(D)).

[0062] Similarly, even if the lock member 3 is rotated (reversely) in the unlocking direction by operating the key from the locked state, the second abutment portion 37b does not immediately come into contact with the second abutted portion 7b of the indicator 7 (Fig. 8(D)). In the locked state, there is a gap between the second abutment portion 37b and the second abutted portion 7b, and this gap serves as a run-up section (reverse run-up section) in the circumferential direction of the lock member 3. After passing through the reverse run-up section, the second abutment portion 37b comes into contact with the second abutted portion 7b and pushes the second abutted portion 7b, causing the indicator 7 to rotate (reversely) after the lock member 3 has rotated, and then the unlocked state is entered (Fig. 5(D)).

[0063] As described above, by making the central angle θ between the first abutment portion 7a and the second abutment portion 7b smaller than the central angle φ between the first abutment portion 37a and the second abutment portion 37b, the above-mentioned run-up section and reverse run-up section are secured, and the angle range (of the central angle) for rotating the indicator 7, i.e., the angle range of rotation of the indicator 7, can be made smaller in the circumferential direction of the lock member 3 than the angle range (of the central angle) for rotating the lock member 3, i.e., the angle range of rotation of the lock member 3 (Figure 8(E)).

[0064] As described above, by minimizing the displacement range of indicator 7, the degree of freedom in designing indicator 7 and the indicator accommodating portion has been increased. If the rotation angle range of indicator 7 were the same as that of lock member 3, i.e., if indicator 7 were to rotate integrally with lock member 3, the width of lever 2 would need to be increased unless indicator 7 were made smaller. Also, if indicator 7 were formed integrally with lock member 3 (the area depicted on lock member 3 as in Patent Document 1), indicator 7 would be restricted by the dimensions of lock member 3 and a large display area would not be able to be secured. This invention is a breakthrough that solves these problems with a simple configuration.

[0065] In this example, the lever 2 is provided with restriction portions 29c, 29d that come into contact with the displacing indicator 7 and restrict the range of possible displacement (Figs. 11(B) to (D)). In Figs. 11(C) and (D), the angle γ indicates the range (rotation angle) over which the indicator 7 can actually be displaced. Without the indicator 7, the rotation range (rotation angle) of the rotor 30 would not be restricted by key operation, but by attaching the indicator 7, the rotation range of the rotation transmission portion 37 is indirectly restricted via the indicator 7 (Figs. 11(B) to (D)). However, a portion (not shown) that directly restricts the rotation range of the rotor 30 may be provided on the lever 2.

[0066] (Example of change) In the above embodiment, the indicator display unit 23 is separate from the key operation unit 22, but the indicator display unit 23 may be formed as a part that is set back radially outward from the key operation unit 22. In the illustrated embodiment, the latch piece 44 projects and retracts toward the tip of the lever 2, i.e., downward, but it can also project and retract toward the left and right or upward. The position of the latch receiving portion 17 can be changed depending on the direction in which the latch piece 44 projects and retracts.

[0067] As shown in Fig. 12(B), an annular member 9 that protrudes forward from the casing 1 is provided in the storage section 13 of the casing main body 10, and an insertion section 90 is formed in the lever 2 that penetrates the lever 2 from front to back and through which the annular member 9 passes, and a padlock or combination lock 100 can be attached to the annular member 9 when the lever 2 is in the down position. In the embodiment shown in Fig. 12(B), matters that are not particularly mentioned are the same as those in the embodiments shown in Figs. 1 to 11. Furthermore, in each of the above embodiments, the flat handle h is provided on the door of the switchboard box, but the flat handle h can also be provided on a door other than the switchboard box.

[0068] (Second embodiment) The L-shaped handle L according to this embodiment is also provided on the door t2 of the switchboard box t and used as a handle for the door. The L-shaped handle L also locks the door (FIGS. 13(A) and 13(B)). The components around the L-shaped handle L of the door t2 etc. shown in Figures 13(A) and (B) are the same as the components around the flat handle h shown in Figures 1(A) and (B), so they are given the same symbols and their explanations are omitted, and the explanation will focus on the differences in the handle. Therefore, matters not specifically mentioned are the same as those in the first embodiment.

[0069] In the following description, the front side of the door t2 is referred to as the front side, and the back side of the door t2 is referred to as the rear side. The L-shaped handle L has a base L1 fixed to the door t2, a shaft Lg protruding from the base L1 to the front and back sides of the base L1, a rod-shaped lever L2 connected to or formed integrally with the shaft Lg protruding to the front side and rotatable relative to the base L1, and a locking member L3 that prevents the lever L2 from rotating relative to the base L1 by locking. As will be described in detail later, the locking member L3 rotates relative to the lever L2 by inserting a key (not shown) and rotating the locking member L3 (a rotor L30, which is a main part and will be described later) itself relative to the lever L2, and this rotation performs the locking and unlocking. A latch j is provided on the shaft Lg, and by rotating the shaft Lg by the above-mentioned rotational operation of the lever L2, the latch j is released from the latch receiving portion t6, and the door t2 can be opened. The L-shaped handle L of the second embodiment will be described in detail below.

[0070] (Base L1) The base L1 is a cylindrical body that rotatably accommodates the shaft Lg within its internal space. The base L1 includes a flange-shaped portion L10 between both ends, the outer diameter of which is larger than the other portions of the base L1 in front and behind. The portion of the base L1 rearward of the flange-shaped portion L10, i.e., the rear portion L12, is attached to the mounting hole t4 of the door t2 from the mounting surface t3 side of the door t2, so that the flange-shaped portion L10 abuts against the mounting surface t3 of the door t2, and the rear end of the rear portion L12 protrudes rearward from the opposite surface t5 of the door t2 (FIGS. 13(B) and 14(B)). A male thread is provided on the outer peripheral surface of the rear portion L12 at the rear end side, and a nut member L13 with a female thread is screwed onto the male thread. The L-shaped handle L is attached to the door t3 by sandwiching the door t3 between the flange-shaped portion L10 and the screwed nut member L13. By tightening the nut member L13 with a tool such as a wrench, the flange-shaped portion L10 is firmly fixed to the door t2 and does not rotate relative to the door t2 even when the lever L2 is rotated. A latch receiving portion L17 is formed on the inner peripheral surface of the cylindrical base L1 (FIGS. 16(B) and 16(D)). The latch receiving portion L17 is a recessed portion recessed radially outward from the inner peripheral surface of the base L1. In this example, the latch receiving portion L17 is formed in the shape of a groove extending along the axial direction (front-rear direction) of the shaft portion Lg on the inner peripheral surface of the base L1.

[0071] (Shaft Lg) The shaft Lg is housed in the internal space of the cylindrical base L1, with the front end side of the shaft Lg exposed forward from the front end side of the front portion L11 of the base L1, and the rear end side of the shaft Lg exposed rearward from the rear end side of the rear portion L12 of the base L1. The front end side of the shaft portion Lg is integrally connected to the base end side of the lever L2. The latch j is provided on the rear end side of the shaft portion Lg.

[0072] (Lever L2) The lever L2 is a rod-shaped handle. The base end side of the lever L2 (the upper end side of the lever L2 in the state shown in Figures 13 to 15, 16(A) and 17) is formed integrally with the shaft portion Lg as described above, and when the door t2 is closed and the latch j is housed in the latch receiving portion t6, the lever L2 extends vertically and points its tip downward. In the unlocked state, the lever L2 can be grasped and rotated, and by rotating the lever L2, the shaft Lg is rotated to release the latch j from the latch receiving portion t6, thereby opening the door t2, similar to the first embodiment. An opening L22 is provided on the front surface L21 of the lever L2 on the base end side of the lever L2. A lock accommodating portion L42 is formed from the opening L22 of the lever L2 to the inside of the shaft portion Lg. The lock accommodating portion L42 is a space that accommodates the lock member L3.

[0073] The lever L2 is provided with an indicator L7 formed separately from the lever L2. The indicator L7 is formed separately from the shaft portion Lg and the lock member L3. The indicator L7 is positioned radially outside the locking member L3 (rotor L30) (on the outer surface of the rotor L30) and can be displaced circumferentially around the locking member L3. The locked / unlocked state of the locking member L3 can be determined by the orientation of the indicator L7, which changes with this displacement.

[0074] In this example, a cover L20 that can open and close and covers the opening L21 and the indicator L7 is provided on the front surface L21 of the lever L2 near the base end of the lever L2. The cover L20 is rotatably fastened by a screw L25 between the base end (top end) of the lever L20 and the opening L22, and the opening L22 can be opened and closed by rotating the cover L20 with a finger around the screw L25. By opening the cover L20 and opening the opening L22, a key can be inserted into a key insertion hole L33 of the lock member L3, which will be described later. By closing the cover L20, the indicator 7 as well as the opening L22 are covered by the cover L20. The cover L20 is provided with an indicator display portion L23, which is a small window that penetrates the cover L20 from front to back. When the cover L20 is closed, the indicator display portion L23 exposes a part of the display area L70 of the indicator L7 to the outside of the cover L20. The indicator 7 will be described in detail later.

[0075] The shaft portion Lg has a latch accommodating portion L41 corresponding to the latch accommodating portion 41 in Figures 10(B)(C) and 11(A), and a latch piece L44 accommodated in the latch accommodating portion L41 (Figures 14(B), 15(B), 16(B)(D) and 18(A)(C)). The latch accommodating portion L41 is a space provided behind the lock accommodating portion L42 and connected to the lock accommodating portion L42. The latch accommodating portion L41 extends in a direction perpendicular to the central axis, and the interior of the latch accommodating portion L41 is formed with dimensions that allow the latch piece L44 to slide smoothly in the direction perpendicular to the central axis. The side surface of the shaft portion Lg is provided with an opening L41a that allows the latch piece L44 to appear and disappear from the latch accommodating portion L41.

[0076] The inner peripheral surface of the lock accommodating portion L42 on the opening L22 side provides an indicator accommodating portion L29, which has an inner diameter larger than other parts of the inner peripheral surface of the lock accommodating portion L42. The indicator accommodating portion L29 is a space formed between the inner peripheral surface of the lock accommodating portion L42 and the outer peripheral surface of the rotor L30. After the lock member L3 (rotor L30) is accommodated in the lock accommodating section L42, the indicator L7 can be accommodated in the indicator accommodating section L29 from the opening L22, thereby positioning the indicator L7 radially outside the lock member L3 (rotor L30) (on the outer surface of the rotor L30). After the indicator L7 is accommodated in the indicator accommodating portion L29, the cover L20 is attached to the lever L3 with the screw L25. When viewed from the front of the L-shaped handle L, the cover L20 covers part of the indicator L7 even when it is open, and prevents the indicator L7 from falling out of the indicator accommodating portion L29 through the opening L22 (FIGS. 15(A) and 17(A)).

[0077] To avoid complexity, the illustration is omitted in Figures 14(B), 15(B), 16(B) and 18(A), but the lock accommodating section L42 is provided on the inner surface of the shaft section Lg with a first driver receiving section corresponding to the first driver receiving section 42a of the first embodiment, a second driver receiving section corresponding to the second driver receiving section 42b of the first embodiment, and a pull-out prevention locking section corresponding to the pull-out prevention locking section 42c of the first embodiment (see Figures 10(C) and 11(A)). The first driver receiving portion and the second driver receiving portion are grooves that are provided on the inner circumferential surface of the shaft portion Lg in the lock accommodating portion L42 and extend in the axial direction of the cylindrical lock accommodating portion L42. In this example, the second driver receiving portion is provided on the inner circumferential surface of the lock accommodating portion L42 on the opposite side of the central axis from the first driver receiving portion.

[0078] The retaining latch portion is located rearward of both the first and second driver receiving portions. The retaining latch portion is a groove extending in the circumferential direction of the lock accommodating portion L42. Although not shown, a small hole that communicates with the retaining latch portion of the lock accommodating portion L42 may be provided in the shaft portion Lg, and when removing the lock member L3 from the shaft portion Lg, a pin may be inserted through the small hole to cause a retaining piece (described later) to recede from the retaining latch portion.

[0079] (Lock member L3) The lock member L3 is rotatably housed in the lock housing portion L42, and the front surface L31 of the lock member L3 is exposed to the front surface side of the lever L2 through the opening L22, and can be covered by the cover L30 as described above. The lock member L3 has the aforementioned key insertion hole L33 on the front surface L31. The above-mentioned locking and unlocking can be performed by inserting a key (not shown) into the key insertion hole L33 and rotating the lock member L3.

[0080] The lock member L3 can be a tumbler lock with the same structure as the lock member 3 of the first embodiment. To avoid cluttering the drawings, the interior of the lock member L3 is omitted in Figures 14(B), 15(B), 16(B), and 18(A), which show the interior of the L-shaped handle L of the second embodiment, but the basic structure is the same as that of the lock member 3 shown in Figures 10(C) and 11(A). That is, the lock member L3 is provided with a cylindrical rotor L30 that houses a plurality of driver pieces (not shown) similar to the driver pieces 34 of the first embodiment. The L-shaped handle L of the second embodiment differs from the first embodiment in that the base L21 and the shaft Lg of the lever L2 also serve as the lock case, which is provided with a dedicated lock case 4, and further differs from the first embodiment in that it is provided with a connecting member L39 (described later) that has a protrusion L36 on the connecting member L39 that corresponds to the protrusion 36.

[0081] The central axis (imaginary line) of the cylindrical rotor L30 extends in the front-rear direction. A connecting protrusion L38 is provided on a rear surface 32 of the rotor L30, protruding further rearward than other portions of the rear surface 32 (FIGS. 14(B), 15(B), 16(B), 18(A), and 19(D) to (F)). The connecting protrusion L38 is a protruding portion whose longitudinal direction is perpendicular to the central axis (imaginary line) of the rotor L30. That is, the connecting protrusion L38 may be, for example, a substantially rectangular shape in front view (rear view) with its long sides parallel to the perpendicular direction, or a substantially elliptical shape with its long axis extending in the perpendicular direction.

[0082] A connecting member L39 formed separately from the rotor L30 is connected to the rear of the rotor L30. That is, the connecting member L39 is housed together with the lock member L3 (rotor L30) in the lock housing portion L42. The connecting member L39 has a connecting recess L39a on the front surface for receiving the connecting projection L38. By fitting the connection projection L38 into the connection recess L39a, the connection member L39 can be connected to the rotor L30 and integrated with the rotor L30, and upon rotation of the rotor L30, the connection member L39 rotates together with the rotor L30. A protrusion L36 is provided at the rear end of the connecting member L39 (FIGS. 14(B), 15(B), 16(B), and 18(A)). However, the connecting member L39 may be formed integrally with the rotor L30 from the beginning as part of the rotor L30, and may not include the connecting projection L38 or the connecting recess L39a.

[0083] The multiple driver pieces are housed in the rotor L30 and can freely protrude from and retract into the outer periphery of the rotor L30. The multiple driver pieces are arranged in the axial direction of the rotor L30. Each of the driver pieces is biased by a resilient biasing member (not shown) and protrudes from the outer periphery of the rotor L30. A spring can be used as the biasing member.

[0084] Furthermore, the rotor L30 houses the aforementioned retaining piece (not shown), which is similar to the retaining piece 35 of the first embodiment, so that it can freely protrude from and retract into the outer circumferential surface of the rotor. The retaining piece is biased by a resilient biasing member (not shown) and protrudes from the outer circumferential surface of the rotor L30. In this example, the retaining piece is located behind the row of driver pieces. A spring (not shown) can also be used as the biasing member for the retaining piece.

[0085] The front side L30a of the rotor L30 having the front surface L31 has a larger diameter than the rear side L30b of the rotor L30 where the driver piece appears and disappears (FIGS. 14(B), 15(B), 16(B) and 18(A)). In the second embodiment, a rotation transmitting portion L37 that protrudes more than other portions of the rear side L30b is also provided on the outer periphery of the front end of the rear side L30b of the rotor L30. The rotation transmitting portion L37 is an arc-shaped protrusion provided along the circumferential direction of the rotor L30 (FIGS. 19(G) to 19(I)). The width of the protrusion of the rotation transmitting portion L37 does not exceed the outer periphery of the front side L30a of the rotor L30 in the radially inward and outward direction.

[0086] In the second embodiment, similar to the rotation transmission part 37 of the first embodiment, the rotation transmission part L37 is formed over a range of central angles of approximately 180 degrees in the circumferential (rotational) direction of the rotor L30, corresponding to the rotation angle (approximately 180 degrees) of the lock member L3 with the key inserted. However, when a lock member L3 with a rotation angle other than 180 degrees is used, the rotation transmission part L37 may be formed over a range of central angles other than 180 degrees that corresponds to the rotation angle of the lock member L3. In this example, with respect to the rotation direction (circumferential direction) of the rotor L30, the locking direction is the forward direction and the unlocking direction is the reverse direction, and the end of the rotation transmission part L37 facing the forward direction forms the first abutment part L37a, and the end of the rotation transmission part L37 facing the reverse direction forms the second abutment part L37b (Figures 19(G) to (I)).

[0087] The rotation transmission part L37, which is formed in an arc shape in the circumferential direction (rotation direction) of the rotor L30 of the lock member L3, has an intermittent part L37e in the middle of the arc, and the intermittent part L37e interrupts the rotation transmission part L37 in the circumferential direction (rotation direction) of the rotor L30 (Fig. 18(D)). In this example, the intermittent part L37e is provided at a position corresponding to the opening of the cross hole 37e in the first embodiment. Therefore, strictly speaking, the rotation transmission part L37 is composed of a leading part L37c that leads during forward rotation and a following part L37d that follows during forward rotation, separated by a cut section (the above-mentioned intermittent part L37e), and in terms of the rotation direction, the first abutment part L37a is the end of the leading part L37c facing the forward rotation direction, and the second abutment part L37b is the end of the following part L37d facing the reverse rotation direction.

[0088] However, the rotation transmission portion L37 may also be considered continuous, ignoring the interrupted sections (i.e., there are no interrupted sections). In this embodiment, the L-shaped handle L may be implemented without the interrupted section L37e. In this example, the interrupted section L37e causes the rotation transmission portion L37 to be configured with two discontinuous sections (sections): the leading section L37c and the trailing section L37d. Alternatively, the rotation transmission portion L37 may be configured with three or more sections interrupted in the circumferential direction of the rotor L30, or three or more protrusions protruding radially outward from the rotor L30. The first contact portion L37a may be the section or protrusion facing the forward rotation direction, and the last contact portion L37b may be the section or protrusion facing the reverse rotation direction, which is the section or protrusion that is the frontmost in the forward rotation.

[0089] With respect to each of the driver pieces of the lock member L3, by inserting a key (not shown) into the rotor L30 through the key insertion hole L33, each driver piece sinks into the rotor L30, making it possible to rotate the key. The protrusion L36 is provided on the rear surface L32 of the rotor L30 at a position eccentric from the central axis of the rotor L30, and rotates with the rotation of the lock member L3 (rotor L30). That is, the protrusion L36 performs a circular motion with the rotation of the rotor L30 when locking or unlocking (FIGS. 16(C) and 18(C)).

[0090] The latch piece L44 is provided with a protrusion receiving portion L44a (FIGS. 16(B)(D) and 18(A)(C)). The protrusion receiving portion L44a is a recessed portion provided on the front surface of the latch piece L44 and recessed rearward. A space portion L41b is formed in the inner wall of the shaft portion Lg that defines the latch accommodating portion L41, and is aligned with at least the trajectory of the circular motion of the protrusion L36 so as not to interfere with the circular motion of the protrusion L36.

[0091] Although not shown in the drawings, similarly to the first embodiment, when the lock member L3 (rotor L30) is accommodated in the lock accommodating portion L42, the key is inserted into the key insertion hole L33 of the rotor L30 and the driver pieces are recessed within the rotor L30 before the accommodation. The retaining pieces are then pressed with fingers to retract them and pressed against the inner circumferential surface of the shaft portion Lg that defines the lock accommodating portion L42, and the rotor L30 is accommodated in the lock accommodating portion L42 with the retaining pieces kept recessed.

[0092] When the rotor L30 is accommodated, the driver piece is aligned with the second driver accommodating portion. The retaining piece protrudes from the rotor L30 at the retaining latch portion, preventing the rotor L30 from moving forward or backward. Furthermore, the key is removed from the rotor L30, causing the driver piece to protrude into the second driver accommodating portion. With the driver piece protruding into the second driver accommodating portion, the rotor L30 becomes unable to rotate.

[0093] When assembling the L-shaped handle L, before attaching the shaft Lg to the base L1, the latch piece L44 is accommodated in the latch accommodating portion L41 of the shaft Lg. After attaching the shaft Lg to the base L1, the connecting member L39 and the lock member L3 (rotor L30) are sequentially accommodated in the lock accommodating portion L42 as described above. In the latch accommodating portion L41, the protrusion L36 of the connecting member L39 fits into the protrusion receiving portion 44a of the latch piece L44. When the driver piece protrudes into the second driver accommodating portion, the protrusion L36 causes the latch piece L44 to sink into the latch accommodating portion 41. In other words, when the key is inserted and the locking member L3 is attached to the lever L2, and then the key is removed without rotating it, the driver piece protrudes within the second driver receiving portion, and when the driver piece is within the second driver receiving portion, the latch piece L44 is submerged within the connecting member L39 (latch accommodating portion L41), and the lever L2 can be rotated relative to the base L1.

[0094] Although not shown, to set the lever L2 in a locked state where it cannot rotate, the key is inserted into the key insertion hole 33L to retract the driver piece into the rotor L30, and then the key is rotated to rotate the lock member L3. This rotation of the lock member L3 causes the driver piece to reach the first driver receiving portion, and when the key is removed, the driver piece protrudes into the first driver receiving portion. When the driver piece is in the first driver receiving portion, the protrusion L36 of the rotor L30 causes the latch piece L44 to protrude from the opening L41a to the outside of the shaft portion Lg (latch accommodating portion L41), and the protruding portion of the latch piece L44 is inserted (engaged) into the latch receiving portion L17, setting the lock member 3 in a locked state (FIGS. 18(A) and (C)). To unlock, insert the key into the key insertion hole L33 again and rotate the key in the opposite direction (reverse rotation) to move the protrusion L36 to its original position before locking and cause the latch piece L44 to sink into the shaft Lg (latch accommodating portion L41).

[0095] The indicator L7 is a component formed separately from the lever L2, the shaft portion Lg, and the lock member L3, and as described above, the indicator L7 is accommodated in the indicator accommodating portion L29 (Figures 14(B), 15(B), 16(B), and 18(A)). In detail, the indicator L7 comprises an indicator portion L71, the front of which is partially exposed from the indicator display portion L23, a thin plate-like annular portion L73 which is integral with the indicator portion L71 and which is formed in a ring shape in a front view along the outer peripheral surface of the lock member L3, a cylindrical neck portion L74 which extends rearward from the annular portion L73, and a follower portion L72 which is provided on the inner peripheral surface of the neck portion L74 (Figure 14(B), Figure 15(A)(B), Figure 16(A)(B), Figure 17(A)(B), Figure 18(A) and Figure 19(A)-(F)).

[0096] The indicator portion L71 is a portion on the front side of the annular portion L73 that protrudes radially outward from the rotor L30 beyond the other portions of the annular portion L73 and the outer periphery of the neck portion L74. That is, the indicator portion L71 is a portion of the annular portion L73 that extends radially outward. The neck portion L74 is formed integrally with the annular portion L73 and is attached to the outer periphery of the rotor L30 together with the annular portion L73, and is rotatable relative to the rotor L30. In the indicator accommodating portion L29, the portion accommodating the indicator portion L71 is a shallow space whose front-to-back width (depth) is smaller than that of the portion accommodating the neck portion L74, and the portion of the shaft portion Lg that defines the rear end of the shallow space is aligned with the rear surface of the indicator portion L71.

[0097] The aforementioned display area L70 for displaying the locked / unlocked state is provided on the front surface of the indicator portion L71. The display area L70 is color-coded according to the rotation direction (circumferential direction) of the rotor L30. Specifically, in the drawings, the area with grid lines (locked display area) and the area with spots (unlocked display area) are colored differently (FIG. 16(A), FIG. 17(B), and FIG. 19(A) to (C)). The locked area with grid lines indicates the locked state of the locking member L3, and the unlocked area with spots indicates the unlocked state of the locking member L3. In this example, the locked area with the grid lines in the display area L70 is green, and the unlocked area with the spots is red. However, this color scheme is merely an example, and other color schemes may be used, and each area may be distinguished by letters, symbols, pictures, etc. instead of by color, or each area may be distinguished as a colored area or a non-colored area, as in the first embodiment.

[0098] The driven portion L72 is a portion that protrudes in a substantially arc shape from the inner peripheral surface of the cylindrical neck portion L74 toward the rotor L30 in the circumferential direction of the rotor L30 (rotation direction of the rotor L30), and fits along the outer peripheral surface of the rotor L30. In the circumferential direction of the rotor L30 (rotation direction of the rotor L30), one end of the driven portion L72 forms a first abutted portion L7a that faces (abuts upon rotation) the first abutment portion L37a of the rotation transmission portion L37 described above, and the other end of the driven portion L72 forms a second abutted portion L7b that faces (abuts upon rotation) the second abutment portion L37b of the rotation transmission portion L37 described above (Figures 19(G) to (I)).

[0099] When viewed from the front of the lever L2, the first abutment portion L37a of the rotation transmission portion 37 of the lock member L3 and the first abutted portion L7a of the indicator L7 are located on the same circumference, and when the lock member L3 rotates, the first abutment portion L37a pushes and rotates the first abutted portion L7a. Furthermore, when viewed from the front of the lever L2, the second abutment portion L37b of the rotation transmission portion L37 of the lock member L3 and the second abutted portion 7b of the indicator L7 are also located on the same circumference, and when the lock member L3 rotates in the reverse direction, the second abutment portion L37b pushes and rotates the second abutted portion L7b. The circumference on which the first abutment portion L37a and the first abutted portion L7a are arranged and the circumference on which the second abutment portion L37b and the second abutted portion L7b are arranged do not have to be the same in diameter or front-to-back position, but as this allows the surrounding configuration of the indicator accommodating portion L29 and the like to be compact, it is preferable that the circumference on which the first abutment portion L37a and the first abutted portion L7a are arranged and the circumference on which the second abutment portion L37b and the second abutted portion L7b are arranged have approximately the same diameter and front-to-back position, as in the first embodiment.

[0100] On the other hand, in the circumferential direction of the lock member L3 (rotor L30), the distance between the first abutment portion L7a and the second abutment portion L7b of the indicator L7 (the length of the arc formed by the circumferential follower portion L72) is smaller than the distance between the first abutment portion L37a and the second abutment portion L37b (the length of the arc formed by the circumferential rotation transmission portion L37). Specifically, the central angle φ of the arc between the first abutment portion L37a and the second abutment portion L37b in the rotation transmission portion 37 is approximately 180 degrees (semicircle), while the central angle θ of the arc between the first abutted portion 7a and the second abutted portion 7b in the driven portion L72 is an acute angle (Figure 18(D)).

[0101] When the latch piece L44 is stopped in the latch accommodating portion L41 by the protrusion L36 and the latch piece L44 has not entered the latch receiving portion L17, i.e., when the lever L2 is in an unlocked state where it can be grasped and turned, the indicator L7 (indicator portion L71) exposes the unlocked display area in the display area L70 from the indicator display portion L23 of the closed cover L20 to the outside of the cover L20, indicating that the lever L2 is in an unlocked state (Figure 19(A)).

[0102] When locking, the lock member L3, i.e., the rotor L30, is rotated (forward) by operating the key (FIGS. 19(B)(H)), and the first abutment portion L37a of the rotation transmission portion L37 of the lock member L3 abuts against and presses the first abutment portion L7a of the indicator L7, thereby displacing the indicator L7 in the indicator accommodating portion L29 (FIGS. 19(C)(I)). Due to this displacement of the indicator L7, the position of the display area L70 of the indicator portion L71, which is exposed from the indicator display portion L23, changes from the unlocked display area to the locked display area (FIGS. 17(A)(B)).

[0103] When unlocking again, the lock member L3, i.e., the rotor L30, is rotated (reversely) by operating the key, and the second abutting portion L37b of the rotation transmission portion L37 of the lock member L3 abuts against and presses the second abutting portion L7b of the indicator L7, thereby displacing the indicator L7 within the indicator accommodating portion L29 to its original position before locking (FIGS. 19(A) and 19(G)). Due to this displacement of the indicator L7, the position of the display area L70 of the indicator portion L71, which is exposed from the indicator display portion L23, changes from the locked display area to the unlocked display area (FIGS. 15(A) and 16(A)).

[0104] As described above, in the circumferential direction of the lock member L3 (rotor L30), the length of the driven portion L72 between the first abutment portion L7a and the second abutment portion L7b is shorter than the length between the first abutment portion L37a and the second abutment portion L37b of the rotation transmission portion L37, and in the circumferential direction of the lock member L3 (rotor L30), the angular range of the central angle in which the indicator L7 rotates (displaces) is smaller than the angular range (of the central angle) in which the lock member L3 rotates when the key is operated (Figure 18 (D)).

[0105] Therefore, in the above-described locking and unlocking operations, even if the lock member L3 is rotated (forward) in the locking direction by operating the key from the unlocked state of the lock member L3 (Fig. 19(A)(G)), the first abutment portion L37a does not immediately abut against the first abutted portion L7a of the indicator L7 (Fig. 19(B)(H)). In the unlocked state, there is a gap between the first abutment portion L37a and the first abutted portion L7a, and this gap serves as a running section in the circumferential direction of the lock member L3. After passing through this running section, the first abutment portion L37a abuts against the first abutted portion L7a and pushes the first abutted portion L7a, causing the indicator L7 to rotate later than the lock member L3 (Fig. 19(C)(I)).

[0106] Similarly, even if the lock member L3 is rotated (reversely) in the unlocking direction by operating the key from the locked state, the second abutment portion L37b does not immediately come into contact with the second abutment portion L7b of the indicator L7. In the locked state, there is a gap between the second abutment portion L37b and the second abutment portion L7b, and this gap serves as a run-up section (reverse run-up section) in the circumferential direction of the lock member L3. After passing through this reverse run-up section, the second abutment portion L37b comes into contact with the second abutment portion L7b and pushes the second abutment portion L7b, causing the indicator L7 to rotate (reversely) after the lock member L3 has rotated, entering the unlocked state (Figures 19(A)(G)).

[0107] As described above, by making the central angle θ between the first abutment portion L7a and the second abutment portion L7b smaller than the central angle φ between the first abutment portion L37a and the second abutment portion L37b, the above-mentioned run-up section and reverse run-up section are secured, and the angle range (of the central angle) for rotating the indicator L7, i.e., the angle range of rotation of the indicator L7, can be made smaller in the circumferential direction of the lock member L3 than the angle range (of the central angle) for rotating the lock member L3, i.e., the angle range of rotation of the lock member L3.

[0108] In the L-shaped handle L of the second embodiment, the displacement range of the indicator L7 is kept small as described above, thereby increasing the degree of freedom in designing the indicator L7 and the indicator housing L29. If the rotation angle range of the indicator L7 were the same as that of the lock member L3, i.e., if the indicator L7 were to rotate integrally with the lock member L3, the width of the lever L2 would need to be increased unless the indicator L7 was made smaller. Furthermore, if the indicator L7 were formed integrally with the lock member L3 (the area depicted on the lock member L3 as in Patent Document 1), the indicator L7 would be constrained by the dimensions of the lock member L3 and would not be able to secure a large display area. The present invention relating to the second embodiment is also groundbreaking in that it solves these problems with a simple configuration.

[0109] The shaft Lg is provided with a restricting portion (not shown) that defines the shallow portion of the indicator accommodating portion L29 in the circumferential direction of the rotor L30 (the rotation direction of the indicator L7) and restricts the rotation of the indicator portion L71, thereby indirectly defining the rotation range of the rotor L30 relative to the shaft Lg. The restricting portion corresponds to the restricting portions 29c and 29d in the first embodiment.

[0110] In the second embodiment, when the door t2 is closed and the latch j is housed in the latch receiving portion t6, the grip of the lever L2 is vertical with the tip pointing downward. However, as in the first embodiment, when the door t2 is closed and the latch j is housed in the latch receiving portion t6, the grip of the lever L2 may be horizontal with the tip pointing sideways. [Explanation of symbols]

[0111] 1 casing 2 levers 3 Locking elements 4 tablet cases 5 Hook 7 Indicators 7a 1st abutted part 7b 2nd abutted part 8 push buttons 10 Casing body 11 Fixing member 11a Presser foot 11b Connection part 11c Fastening member insertion portion 12 Packing 13 Storage section 13a 1st retreat section 13b 2nd retreat part 13c Cylinder part 13d Penetration 14 flange 14b Recess 14c Convex part 15 groove 16 Fastening member 17 Latch receiving part 20 Hinge part 20a (of hinge portion 20) 20b (of hinge portion 20) horizontal axis 21 (Lever 2) Opening 22 Opening (key operation part) 23 (opening 21) indicator display unit 24 Lock mounting part 25 Case mounting part 26 Fitting part 27 Retaining hole 28 Fasteners 29 Retraction site 29a Lever side edge 30 (of lock member 3) rotor 30a (of rotor 30) front side 30b (of rotor 30) rear side 31 (of rotor 30) front 32 (of rotor 30) rear surface 33 (of rotor 30) key insertion hole 34 (of lock member 3) driver piece 35 (Lock member 3) retaining piece 36 (of lock member 3) protrusion 37 (of lock member 3) rotation transmission part 37a 1st contact part 37b 2nd contact area 37c (of the rotation transmission part 37) 37d (rotation transmission part 37) succeeding part 37e Cross hole 41 (Latch housing 4) 41a aperture 42 (lock case 4) lock storage section 42a First driver receiving part 42b Second driver receiving part 42c Stopper lock 43 (of lock case 4) mounting portion 43a (mounting portion 43) hole 43b (of lock case 4) fitting portion 44 (Lock case 4) latch piece 44a Protrusion receiving part 70 (Indicator 7) Display Area 71 (Indicator 7) indicator part 72 (Indicator 7) Follower 73 (Indicator 7) Collar 74 (Indicator 7) Neck 80 (Lever 2) Extension Space 81 (push button 8) shaft stopper h Plane handle j Premium t Distribution box t1 (Distribution Box 1) Main Unit t2 (Distribution box 1) door t3 (door t2) mounting surface t4 (door t2) mounting hole t5 (opposite side of mounting surface t3) t6 Latch receiving part LL type handle L1 Base L2 lever L3 Locking element L7 indicator L7a 1st contacted part L7b 2nd abutted part L10 (Base L1) flange L11 (forward part of base L1) L12 (the rear part of the base L1) L13 Nut material L17 Latch receiving part L20 (Lever 2) Cover L21 (Lever 2) Front L22 (Lever 2) Opening L23 (cover L20) indicator display L25 screw L29 Indicator housing L30 (locking element L3) rotor L30a (front side of rotor L30) L30b (rear side of rotor L30) L31 (front of rotor L30) L32 (rear of rotor L30) L33 (rotor L30) key hole L36 (connecting member L39) protrusion L37 (of lock member L3) rotation transmission part L37a 1st contact area L37b 2nd contact area L37c (the leading part of the rotation transmission part 37) L37d (rotation transmission part 37) succeeding part L37e Intermittent part L38 Connection protrusion L39 Connection material L39a Connection recess L41 Latch housing L41a opening L41b space section L42 Lock storage section L42a 1st driver receiving part L42b Second driver receiving part L42c Anti-slip latch L44 Latch piece L44a Protrusion receiving part L70 (Indicator L7) Display Area L71 (Indicator L7) Indicator part L72 (Indicator L7) Follower L73 (Indicator L7) Annular part L74 (Indicator L7) Neck Lg shaft

Claims

1. A flat handle has a casing with an opening on the front, and a lever provided so as to be able to appear and disappear from the opening of the casing, and by locking a lock member provided on the lever, the lever is kept housed in the casing so that it cannot be gripped, An opening is provided on the front surface of the lever, the locking member is disposed on the rear side of the lever, and a front surface of the locking member is exposed to the front side of the lever through the opening, The locking member has a key insertion hole on a part of the front surface, and the locking and unlocking can be performed by inserting a key into the key insertion hole and rotating the locking member, The lock member is generally cylindrical and has the key insertion hole at one end of the cylinder. The lever includes an indicator and an indicator display portion. a lock case for accommodating the lock member on the rear side of the lever; The lock case accommodates a latch piece that appears and disappears from the lock case when the lock member rotates and is caught on the casing to perform the locking operation. the indicator is formed separately from the lever and the lock member, and is disposed on the rear surface side of the lever radially outward of the rotation of the lock member, and is displaceable in the circumferential direction of the lock member; the indicator display portion is a sub-opening provided in the lever separately from the opening, or an opening extension portion extending from the opening to a radially outer side of the opening, and the indicator display portion exposes at least a part of the indicator to a front side of the lever, The displacement changes the area of ​​the indicator exposed from the indicator display unit, thereby indicating the locked and unlocked states, The indicator includes an indicator portion exposed from the indicator display portion, and a follower portion having a generally arc-shaped front view, which is provided integrally with the indicator portion at the rear of the indicator portion and follows the outer peripheral surface of the lock member. With respect to the rotation of the locking member, the locking direction is the forward rotation direction and the unlocking direction is the reverse rotation direction, and the locking member has a first abutment portion facing the forward rotation direction and a second abutment portion facing the reverse rotation direction, The indicator includes a first contact portion that is pressed by the first contact portion when the lock member is rotated forward, thereby rotating the indicator forward, and a second contact portion that is pressed by the second contact portion when the lock member is rotated backward, thereby rotating the indicator backward, In the circumferential direction of the lock member, the distance between the first abutted portion and the second abutted portion is smaller than the distance between the first abutted portion and the second abutted portion, and in the circumferential direction of the lock member, the angle range of the central angle in which the indicator rotates, i.e., the displacement, is smaller than the angle range of the central angle in which the lock member rotates, A flat handle in which one end of the follower portion is the first abutment portion and the other end of the follower portion is the second abutment portion in the circumferential direction of the lock member, and the follower portion follows the rotation of the lock member to displace the indicator portion.

2. 2. The flat handle according to claim 1, wherein the indicator portion has two different colored regions in the circumferential direction of the lock member, and the color seen through the indicator display portion indicates whether the lock is locked or unlocked.

3. An L-shaped handle having a base fixed to a door, with the front side of the door being the front side and the back side of the door being the rear side, a shaft protruding from the base to the front side and the back side of the base, a rod-shaped lever connected to or formed integrally with the shaft and rotatable relative to the base, and a locking member preventing the lever from rotating relative to the base, An opening is provided on the front surface of the lever, the locking member is rotatably accommodated in at least one of the lever and the shaft portion, and at least a portion of a front surface of the locking member is exposed to the front surface of the lever through the opening, The locking member has a key insertion hole on a part of the front surface, and the locking and unlocking can be performed by inserting a key into the key insertion hole and rotating the locking member, The lock member is generally cylindrical and has the key insertion hole at one end of the cylinder. a lock accommodating portion extending from the lever to the inside of the shaft portion and communicating with the opening portion to accommodate the lock member; The inner peripheral surface of the base has a recess as a latch receiving portion that recedes radially outward from the lock accommodating portion, The shaft portion has an opening that penetrates from the lock accommodating portion to the outer circumferential surface of the shaft portion, The lock accommodating portion accommodates a latch piece that appears and disappears from the opening when the lock member is rotated and is caught in the latch receiving portion to perform the locking. the lever includes an indicator; the indicator is formed separately from the lever, the shaft, and the lock member, and is disposed radially outward of the rotation of the lock member so as to be displaceable in the circumferential direction of the lock member; The direction of the indicator changes due to the displacement, thereby indicating the locked or unlocked state; The lever is provided with a cover that can be opened and closed to cover the front surface of the locking member and the indicator. With respect to the rotation of the locking member, the locking direction is the forward rotation direction and the unlocking direction is the reverse rotation direction, and the locking member has a first abutment portion facing the forward rotation direction and a second abutment portion facing the reverse rotation direction, The indicator includes a first contact portion that is pressed by the first contact portion when the lock member is rotated forward, thereby rotating the indicator forward, and a second contact portion that is pressed by the second contact portion when the lock member is rotated backward, thereby rotating the indicator backward, In the circumferential direction of the lock member, the distance between the first abutted portion and the second abutted portion is smaller than the distance between the first abutted portion and the second abutted portion, and in the circumferential direction of the lock member, the angle range of the central angle in which the indicator rotates, i.e., the displacement, is smaller than the angle range of the central angle in which the lock member rotates, The lever includes an indicator display portion, the indicator display portion is an opening provided in the cover or a notch provided on the periphery of the cover, The indicator display portion exposes at least a part of the indicator to a front side of the lever, The displacement changes the area of ​​the indicator exposed from the indicator display unit, thereby indicating the locked and unlocked states, The indicator includes an indicator portion exposed from the indicator display portion and a follower portion that is integral with the indicator portion and has a generally arc-shaped front view along the outer peripheral surface of the lock member, An L-shaped handle in which one end of the follower portion is the first abutment portion and the other end of the follower portion is the second abutment portion in the circumferential direction of the lock member, and the follower portion follows the rotation of the lock member to displace the indicator portion.

Images