JP7199137B2 - Portable locking/unlocking display device - Google Patents

Description

The present invention relates to a portable locking/unlocking display device.

Patent Literature 1 and Patent Literature 2 describe a "locked/unlocked display key and a grip portion with a display function" similar to the present invention. What these patent documents have in common is that "on the surface of the elongated slider portion corresponding to the drive piece of the present invention, a lock mark and an unlock mark are displayed side by side along the key insertion direction".

In addition, the driving member of the former locked/unlocked display key is a trigger portion and a long slider portion interlocking with the trigger portion. A slightly wide sign is attached to indicate the locked/unlocked state, including characters such as "closed" and colors. On the other hand, the latter grip portion with a display function has a driving member that is a single member like the driving piece of the present invention, but the display mode of the sign is exactly the same as in Patent Document 1.

The problem with these Patent Documents 1 and 2 is that the slider portion needs to be formed in an elongated shape in order to ensure sufficient visibility of the sign. In particular, in Patent Document 2, a switch member 20 integrally formed of a trigger portion and a slider portion has a long-plate-like shape having a trigger portion 27a projecting from a case-shaped grip portion and a slightly wide sign connected thereto. Since the total length of the slider portion is larger than the length of the rectangular parallelepiped grip portion in the direction of the key axis, there is no degree of freedom in the size and shape of the grip portion, and miniaturization cannot be achieved ( Reference numerals are those of Patent Document 2). Therefore, it was necessary to consider the portability a little more as a portable grip. Therefore, in order to overcome the above-mentioned problems, the applicant proposes the present invention from the point of view of the difference from the prior art.

〈Difference from the past…viewpoint〉
(a) Integrating the trigger part and the slider part wider than the trigger part, preferably using one driving piece.
(b) The drive piece and the display piece having the sign are made separate members (different articles), and the arrangement of the display piece with respect to the drive piece is devised. For example, to rotatably support a display piece.
(c) To save labor when assembling parts. For example, the power conversion mechanism is desirably a driving cam portion formed on the wide slider portion and a driven cam portion provided on the display piece. Similarly, the guide part for guiding the driving piece should not be manufactured separately and incorporated into the grip, but should be formed in advance on the inner wall of the grip as much as possible. For example, by forming a second partition-shaped guide portion for the drive piece on the inner wall side of the rear end portion of the grip portion, and further providing functions such as a spring bearing seat and a bearing portion to the two partition-shaped guide portions, Reduce the number of parts.
(d) Further, when the display device main body is provided with an existing key, the grip portion is rationally configured, for example, either one of the case main body or the lid body constituting the outer shell and the inner lid provided inside the grip portion. and to prevent the existing key from rattling.

JP 2012-246638 A Japanese Patent No. 5463445

SUMMARY OF THE INVENTION The main object of the present invention is to reduce the length from the front end to the rear end of the grip portion in view of the problems of Patent Documents 1 and 2, thereby achieving size reduction. A second purpose is to reduce the number of parts. Other objects are specified by dependent claims.

The portable locking/unlocking display device of the present invention integrates a trigger portion and a slider portion into a case-shaped grip portion having a display window for selectively displaying information on either locking or unlocking of a lock. a drive piece biased by biasing means in a direction in which the trigger portion always protrudes from the grip portion; and a display switching movable obstruction that engages and disengages from the engaging portion of the slider portion. In this case, the position of the display-switching movable obstruction is displaced by rotating the grip portion up to a predetermined angle in either the locking or unlocking direction of the lock, thereby causing the drive piece to protrude. When the full return in direction is prevented and the drive piece is retracted into the grip portion, the movement of the drive piece is transmitted to the display piece as rotational movement via a conversion mechanism to at least the display piece. is switched from unlocked to locked (claim 1). The conversion mechanism is preferably a power conversion mechanism that converts linear motion into rotary motion.

In the above construction, the display piece is pivotally supported so as to be able to rotate by a required amount along at least one side surface, either the surface or the back surface of the drive piece (claim 2). , the preferred embodiment). With this configuration, the display piece can be supported with a simpler structure than, for example, an embodiment in which the display piece is rotatably supported by an annular or semicircular guide wall formed in the internal space of the grip.

Further, in the portable locking/unlocking display device according to claim 1 or claim 2, the driving piece is a substantially long plate in a plan view in which a trigger portion and a slider portion are integrally formed, and the trigger portion is: The slider portion is guided by a first guide portion formed at the tip of the grip portion, while the slider portion has an engagement arm connected to the wide chest portion, and the engagement arm is connected to a partition-shaped second portion of the grip portion. It is characterized in that it extends toward the inner wall surface side of the rear end portion of the grip portion through the guide portion (Claim 3). Such a configuration provides reasonable engagement with other components. Further, the drive piece has an engaging arm, two of which extend in opposite directions, and these two engaging arms hold the display switching movable obstruction so as to hold it. ( Claim 4) . In addition, the power conversion mechanism is a driving cam portion formed on the driving piece and a driven cam portion provided on the display piece ( claim 5) . In addition, since there are various features, they will be described in the column of "Mode for Carrying Out the Invention".

The "driving piece" in this specification is, for example, integrally provided with a trigger portion and a slider portion wider than the trigger portion. It is a concept that includes those integrated through fixing means such as adhesives and screws, and those in which the trigger portion and the slider portion are integrally molded from a material such as synthetic resin material or metal. Here, the term "shaft support" includes those having shafts and those not having shafts but supported by guides or the like in place of shafts.

According to the present invention, the length from the front end to the rear end of the grip can be shortened, thereby making it possible to reduce the overall size of the device body. Therefore, it is excellent in portability. Also, the inventions described in claims 2 and below can reduce the number of parts.

1 to 17 are explanatory diagrams showing one embodiment of the present invention.
A plan view including an existing key (the case body 3 of the grip can be seen). FIG. 1 is a front view based on FIG. 1 (the case main body 3 of the grip portion is on the upper side, and the lids 4 and 5 are seen on the lower side). Fig. 2 is a left side view with reference to Fig. 1; 4-4 line schematic cross-sectional view of FIG. Explanatory drawing which shows the internal structure from the planar view which removed the case main body 3 of the grip part. FIG. 2 is an explanatory view from a perspective view in which the case main body 3 of the grip portion is turned upside down, and the drive piece 11 and the like, which are generally elongated plate bodies in a plan view, are incorporated in the concave portions thereof. FIG. 2 is an exploded perspective view including an existing key 2; (a) An explanatory view of the display piece viewed from one side (part of the flange portion is visible). (b) Explanatory drawing seen from the other side of the display piece (the chevron-shaped unlock sign and the rest of the lock sign with different brightness in the brim portion are visible). (c) A sectional view taken along the line AA in (b) of FIG. (a) Explanatory drawing of the initial state of a power conversion mechanism. (b) Explanatory drawing to the effect that a display piece rotates a required amount along one side surface of a drive piece by a power conversion mechanism. FIG. 8 is an enlarged view of the display switching movable obstruction shown in FIG. 7; 11-11 line cross-sectional view of FIG. The manner of removing the display piece (unlocked display), the manner of inserting the display piece (from unlocking to locking), the manner of inserting and stopping the display piece (retaining the locked state), and the manner of retaining the display piece (maintaining the locked state), Explanatory drawing shown in the form of a flowchart. FIG. 4 is an explanatory view of the trigger portion of the driving piece in the initial position (for example, the trigger portion protrudes by 3 mm); FIG. 14 is an explanatory view of the state of FIG. 13 when the trigger portion is pushed to the periphery of the keyhole and the amount of protrusion of the trigger portion becomes 0 mm; FIG. 14 is an explanatory view of the state of FIG. 14 in which the ball is moved to the opposite side by turning the key 90 degrees while the key is inserted in the keyhole; After locking the lock, the grip is returned to a horizontal state (returning the key to its original state), and furthermore, when the key is removed from the keyhole, the projection of the trigger portion becomes 3 mm. FIG. 4 is an explanatory diagram showing a list of operating states of a drive piece, a display piece, and a movable obstruction;

1 to 17 are explanatory diagrams of a portable locking/unlocking display device according to one embodiment of the present invention. First, FIG. 1 is a plan view including an existing key (also referred to as a key), in which the case main body of the grip can be seen. FIG. 2 is a front view based on FIG. 1, in which the case main body of the handle can be seen on the upper side and the cover can be seen on the lower side. Furthermore, FIG. 3 is a left side view based on FIG.

In FIG. 1, X is a portable locking/unlocking display device (hereinafter referred to as "this device X"), 1 is a grip portion, and 2 is a key used for locking an entrance door of a building, for example. . As will be described later, the grip portion 1 comprises a case body 3 and large and small lid bodies 4 and 5 connected to the case body via fixing means. In the device X of the embodiment, the grip portion 1 (the case main body 3, the large lid 4, and the small lid 5) can be pulled out (a state in which the driving piece 11, which will be described later, is completely returned to the initial position), as will be described later. ) into the keyhole in a substantially horizontal orientation, and bi-directional rotation, for example, 90 degrees, allows the lock to be locked.

In addition, when going out and generally locking the front door (not shown), for example, the blade 2a of the existing key 2 is inserted into the keyhole in the horizontal state (insertion mode), and then, with the key inserted, the locking direction When it is turned 90 degrees (for example, to the right or to the left), it is locked (insert/lock mode). Next, after locking, the existing key 2 is returned to its original horizontal position, and the existing key 2 is pulled out in that posture (retaining mode).

In the embodiment, in the withdrawal mode, an unlock mark M1 appears through a display window 6 formed substantially in the central portion near the arcuate front wall of the case body 3 as shown in FIG. On the other hand, since the driving piece 11 is retracted in the retaining mode, the lock mark M2 appears from the display window 6. As shown in FIG.

In the embodiment, the unlock mark M1 and the lock mark M2 use colors having a difference in brightness, such as orange and gray, and one of them is considered as unlocked and the other as locked. FIG. 1 shows the initial state (removal state) in which the trigger portion of the driving piece, which will be described later, protrudes by the maximum amount, so that an orange color representing, for example, the unlocking mark M1 appears from the display window 6. As shown in FIG. In the embodiment, the display window 6 is formed substantially in the central portion near the arcuate front wall of the case body 3 as shown in the drawings, but the position of the unlock mark M1 and the lock mark M2 is determined. Depending on the situation (for example, when the sign is on the side peripheral surface of the display piece), it may be formed at an appropriate portion of the peripheral side wall of the case main body 3 so as to correspond to it.

Therefore, when the device X is locked when going out, at least the locked state is displayed on the grip part 1 (for example, the case body 3), and the user can visually confirm it.

Here, the external shape of the case body 3 of the grip portion 1 will be described. The overall shape of the grip portion 1 (case body 3) in a plan view is somewhat close to a square, and its peripheral wall is rounded. For example, referring to FIG. 1, the symbol A is the direction in which the existing key 2 is inserted, the symbol B is the direction in which the existing key 2 is removed, the symbol C is the circumferential direction of the grip portion, the symbol O is the central axis of the existing key 2, and the symbol 1a. is the front wall portion of the grip portion and reference numeral 1b is the rear wall portion of the grip portion, the front wall portion 1a of the grip portion is formed into a semi-circular surface, while the rear wall portion 1b of the grip portion is By forming the handle in a round shape with both corners, the grip portion is a rounded shape that is substantially square in plan view rather than a rectangular shape in plan view.

Comparing the length of the grip portion 1 on the central axis O of the blade 2a of the existing key 2 with the length to the tip of the blade 2a projecting from the central portion of the front wall portion 1a of the grip portion 1, for example, approximately It is within 1:1, or approximately 1.1:1, or approximately 1.2:1. The reason for this is (A) that there is only one drive piece, that is, the drive piece integrally has a neck-shaped trigger portion and a slider portion wider than the trigger portion; (B) and the drive piece and the display piece are separate members, and the display piece is on the front surface or the back surface of the drive piece. It is pivotally supported along one side so that it can be rotated by the required amount, and the wide side of the grip on the display window side is provided with a sign for locking and unlocking, so the case-shaped grip 1 can be realized.

Note that the existing key 2 may be reversible or not. Further, in the embodiment, the case where the lock is locked clockwise and unlocked counterclockwise will be described as an example, but the device X can also be applied to a lock that rotates in the opposite direction. In addition, since the present invention claims this device X, it is subject to direct infringement regardless of whether it has the existing key 2 or does not have the existing key 2. Furthermore, in this specification and drawings, for the sake of convenience, configurations that are completely unrelated to (A) and (B) above, such as a clear window that is a window member and a pair of projecting pieces formed on the left and right of the window member, are also described. However, these are suggestions at the implementation level, and have nothing to do with the technical idea of the present invention. Furthermore, in the embodiment, the wide knob portion (head) of the existing key 2 is retained as described later.

Next, FIG. 4 is a schematic cross-sectional view taken along line 4-4 of FIG. 1, FIG. 5 is an explanatory diagram showing the internal structure of the handle 1 with the case body 3 removed, and FIG. 6 is a case body of the grip 1. 3 is turned upside down, and a drive piece, which is a substantially elongated plate in a plan view, is assembled in its recess. FIG. 7 is an exploded perspective view including the existing key 2. FIG.

In particular, referring to FIG. 7, the case main body 3 is positioned on the left side of the drawing, while the large lid body 4 and the small lid body 5 are positioned on the right side of the drawing. The existing key 2 is drawn in FIG. 7 as an example of an embodiment because it is a specific feature of the invention in the subclaims. The wide fixing plate 7 drawn in the approximate center of FIG. 7 is a vertically long and thin rectangular plate, and its lower end is arcuately formed so as to fit snugly along the inner wall surface of the arcuate front wall portion 1a of the grip portion. , and an unnumbered tongue-like projection is formed in the central portion of the arc-shaped edge. A small hole is formed in the central portion of the wide fixed plate 7, and a pair of unnumbered ear-like mounting portions are formed in the left and right edge portions.

Since this wide fixing plate 7 corresponds to the inner lid, it is fixedly incorporated along the inner surface of the large flat lid body 4 as shown in FIG. Part) 2b is sandwiched. As a result, the existing key 2 does not rattle. The knob (head) 2b of the existing key 2 can be sandwiched between one of the case body 3 or the large lid 4 and the wide fixing plate 7 depending on the design.

Next, the members drawn between the case body 3 and the wide fixed plate 7 in FIG. A display piece 13 that rotates along one side to a predetermined angle is shown. On the other hand, a display switching movable obstruction 14 is drawn between the wide fixing plate 7 and the small lid body 5 .

Thus, the device X has a case-shaped grip portion 1 having a display window 6 for selectively displaying information on either locking or unlocking of the lock, a trigger portion 17 and a trigger portion 17 wider than the trigger portion. and a driving piece 11 integrally provided with a slider portion 18 and biased by biasing means 12 in a direction in which the trigger portion always protrudes from the grip portion 1; a display piece 13 pivotally supported so as to be able to rotate along one side by a required amount, and having the locking and unlocking marks M1 and M2 on the wide side on the side of the display window 6; and the slider. The engaging arm 18c of the portion 18 and the display switching movable obstruction 14 that engages and disengages are incorporated respectively, and when the slide portion of the drive piece engages with the display switching movable obstruction 14, the grip portion is engaged with the lock. When the display switching movable obstruction is rotated up to a predetermined angle in either the locking or unlocking direction, the attitude of the display switching movable obstruction is displaced. Also, when the driving piece 11 is retracted into the grip portion 1, the linear motion of the driving piece 11 is transmitted to the display piece 13 as rotary motion via the power conversion mechanism 15, and at least the display piece 13 is switched from unlocking M1 to locking M2.

Therefore, the members related to the above specific requirements will be further described below. As shown in FIGS. 6 and 7, the driving piece 11 is a substantially elongated plate in a plan view in which a neck-shaped trigger portion 17 and a wide slider portion 18 are integrally formed, and the trigger portion 17 is a grip portion. 1, which in this embodiment is guided by a first guide portion 21 formed in a through-hole shape in the central portion of the arc-shaped front wall portion 1a. It has a shoulder portion 18a directly or indirectly in contact with the inner wall surface side, a wide chest portion 18b connected to the shoulder portion, and a plurality of engaging arms 18c, 18c connected to the wide chest portion. The engaging arm 18c extends toward the inner wall surface side of the rear wall portion 1b of the grip portion 1 through the partition-shaped second guide portion 22 of the grip portion 1. As shown in FIG.

In the embodiment, the rear end of the engaging arm 18c is provided with a single or a plurality of claw-like engaging portions 25, 25 that are alternately opposed to each other and are engaged with and disengaged from the display switching movable obstruction 14. The engaging portion 25 is adapted to engage the display switching movable obstruction 14 when the grip portion 1 rotates up to a predetermined angle in the locking direction of the lock and the posture of the display switching movable obstruction 14 is displaced. The groove-like engaged portions 26, 26 are engaged at the same time, thereby preventing the driving piece 11 from returning completely in the projecting direction (key insertion direction A). In addition, the pair of engaging arms 18c extends in two opposite directions, and these two engaging arms can hold the outer wall surface of the display switching movable obstruction 14 so as to hold it. .

5 and 6, the grip portion 1 is composed of a case body 3 and large and small lid bodies 4 and 5 integrally united with the case body. a first space defined by the case main body and the large lid 4 or a partition wall-shaped second guide portion 22 protruding from the inner surface of the case main body 3; the case main body 3 and the small lid 5; A coil-shaped biasing means 12 is incorporated in the first spatial region, and the tip of the biasing means 12 is located at the tip of the driving piece 11 as shown in FIG. The rear end of the urging means 12 is supported substantially in the center of the rear end surface of the wide chest portion 18b, while the rear end of the urging means 12 is supported substantially in the center of the inner surface of the second guide portion 22 (spring seat). , always urges the driving piece 11 in the projecting direction (key insertion direction A). A display switching movable obstruction 14 is oscillatably incorporated in the second spatial region through a pair of front and rear shaft portions 27 , 27 .

Next, FIG. 8(a) is an explanatory view of the display piece 13 viewed from the side 13a side, in which a part of the follower cam portion of the collar portion can be seen. On the other hand, FIG. 8(b) is an explanatory view seen from the other side surface 13b of the display piece 13, in which the chevron-shaped unlock mark M1 and the remaining lock mark M2 with different brightnesses are visible. FIG. 8(c) is a cross-sectional view taken along the line AA of (b).

As is clear from these figures, the display piece 13 includes a substantially circular fitting portion 31 into which a shaft portion 31 protruding from the inner wall of the grip portion 1 is fitted, and an outer radius from the peripheral wall of this fitting portion. A flange portion 32 projecting in at least a substantially semicircular arc shape or a substantially fan shape in the direction, a driven cam portion 33 projecting from one side surface 13a of the flange portion, and the driven cam portion. It consists of a lock mark M2 and an unlock mark M1 attached to the other side surface 13b of the flange 32 opposite to the position, and the area of the lock mark M2 is, for example, an orange unlock mark drawn in a fan shape Larger than M1.

Next, FIG. 9A is an explanatory diagram of the initial state of the power conversion mechanism 15. FIG. FIG. 9(b) is an explanatory view showing that the power conversion mechanism 15 rotates the display piece 13 along one side surface of the driving piece 11 by a required amount. The power conversion mechanism 15 does not consist of a plurality of pinions and racks, but has a reduced number of parts and a length of the drive piece 11 as short as possible. A driving cam portion 29 formed at the edge portion of an opening 28 formed substantially at the center of the wide chest portion 18b of the portion 18 and a driven shaft portion 8 provided in the grip portion 1 directly or indirectly. It is the cam portion 33, and this driven cam portion 33 is provided on one side wall or the other side wall of the display piece 13 in the embodiment as described above.

Next, FIG. 10 is an enlarged view of the display switching movable obstruction shown in FIG. 7, and FIG. 11 is a sectional view taken along line 11-11 of FIG. The configuration of the display switching movable obstruction 14 (hereinafter referred to as "movable obstruction 14") will be described with reference to these drawings. By the way, the construction of this movable obstruction 14 is a well-known or well-known technique, as shown in paragraph 0027 of Japanese Patent No. 5846569 proposed by the applicant and FIGS.

Therefore, although briefly described here, the difference from the invention of Japanese Patent No. 5846569 is that the regulating arm, engaging arm or leg penetrating the guide member of the grip portion 1 is used to swing the movable obstruction 14. Rather than functioning as a stopper in the movement direction, the swinging motion of the movable obstruction 14 of this embodiment preferably avoids an increase in the number of parts and complication of the structure, and makes direct contact with the inner wall surface of the grip portion 1. It is incorporated in the second spatial region so as to stop when it touches. The movable obstacle 14 consists of two parts: a long cylindrical guide 14a having a pair of engaged portions 26, 26 on the outer wall surface, and a ball-shaped center-of-gravity moving body 14b incorporated in the long cylindrical guide, It is incorporated in the second space region on the rear end side of the grip portion 1 so as to be swingable.

Next, FIG. 12 shows the withdrawal mode of the display piece 13 (unlocked display), the insertion mode of the display piece 13 (from unlocked to locked), the insertion/stop mode of the display piece 13 (retained in the locked state), and the display piece 13. FIG. 10 is an explanatory diagram showing a retaining state (maintaining a locked state) in the form of a flow chart. Here, the "withdrawal mode" means that the trigger portion 17 of the driving piece 11 is slightly pushed into the grip portion 1 and the grip portion 1 is appropriately inverted or rotated in the retaining mode so that the driving piece 11 is removed. It means protruding to the initial position by the biasing force of the biasing means 12 (see FIG. 13). For example, FIG. 13 is an explanatory diagram of the initial position of the trigger portion 17 of the driving piece 11 (for example, the trigger portion protrudes by 3 mm). At this time, unlock M1 appears in the display window 6.

The "insertion mode" means that the trigger portion 17 is pushed by the periphery Y of the keyhole and the driving piece 11 is retracted to the maximum position. For example, FIG. 14 is an illustration showing that the trigger portion 17 is pushed to the periphery Y of the keyhole in the state of FIG. 13, and the amount of protrusion of the trigger portion 17 becomes 0 mm. At this time, the power conversion mechanism 15 rotates the display piece 13 by a predetermined amount, so that the sign is switched from the unlocking M1 to the locking M2.

Further, the "insertion/stop state" refers to a state in which the key 2 is turned to the right, for example, while the key 2 is completely inserted in the keyhole. As a result, the ball-shaped center-of-gravity moving body 14b of the movable obstacle 14 slides and displaces its position, so that the long cylindrical guide 14a rotates up to a predetermined angle about the shaft portion 27, and as a result, tilts in the opposite direction. do. At this time, the movable obstruction 14 comes into direct contact with the inner wall surface of the grip portion 1 and stops. Therefore, FIG. 15 is an explanatory view of the state of FIG. 14, in which the ball 14b is moved to the opposite side by rotating the key 2 by 90 degrees while it is inserted in the keyhole.

Furthermore, as shown in FIG. 16, the "disengagement prevention mode" means that after the lock is locked, the grip portion 1 is returned to the horizontal state (the key 2 is returned to its original state), and when the key 2 is removed from the keyhole. In the figure, the amount of protrusion of the trigger portion 17 is 1 mm. At this time, the claw-like engaging portions 25 of the two engaging arms 18c of the driving piece 11 are simultaneously engaged with the groove-like engaged portions 26 of the movable obstruction 14. Since the arm 18c holds the movable obstruction 14, the complete return of the driving piece 11 in the projecting direction is prevented. Therefore, the indication of the display window 6 remains locked M2. In addition, in the retaining mode, the engagement between the slider portion of the driving piece and the display switching movable obstruction is achieved by rotating the grip portion to a predetermined angle in either the locking or unlocking direction of the lock, thereby switching the display. This is the case where the position of the movable obstruction for the device is displaced, and this prevents the driving piece from returning completely in the protruding direction.

FIG. 17 is an explanatory diagram showing, so to speak, a list of operating states of the driving piece 11, the display piece 13, and the movable obstruction 14 so that the operating states can be visually understood.

In the first embodiment, the power conversion mechanism is a driving cam portion formed on the wide slider portion and a driven cam portion provided on the display piece. The display piece may be replaced by a pinion meshing with the rack, and a mark indicating locking/unlocking, such as letters or colors, may be attached to the surface of the pinion perpendicular to the threaded teeth. Therefore, in the embodiment, the display piece 13 is pivotally supported so as to be able to rotate along one side surface or the back surface of the driving piece 11 by a required amount, but it is not necessary to be pivotally supported. For example, an approximately arc or circular guide portion for the display piece 13 may be provided in the inner space of the grip portion, and the display piece 13 may be arranged so as to be supported by the inner peripheral surface of this guide portion.

In addition, when the design is changed, although not shown, the length and width of the opening 28 of the wide chest 18b are appropriately determined in consideration of the movement amount of the driving piece 11, the size of the pinion, etc. A pinion may be positioned within the opening 28 so as to engage a rack formed in the edge of the opening 28 .

Also, the engagement arm of the drive piece is formed in a slightly curved shape. Matters such as widening part of the engaging arm, narrowing part of the engaging arm, changing the shape and angle of the engaging portion at the tip of the engaging arm, increasing or decreasing the number of engaging arms, etc. A person skilled in the art can easily modify the design without departing from the main subject of the invention.
In addition, it is also possible to add a configuration such as incorporating an electronic component in the grip portion. It is also possible to make the external shape of the grip part substantially circular (close to circular).

The invention is a portable locking/unlocking display device used, for example, for confirming whether an entrance door of a building is locked.

X... portable locking/unlocking display device (this device X),
Y: Around the keyhole,
1... grip portion,
2 ... key (for example, existing key),
3... Case main body,
4 ... large lid body,
5 ... small lid body,
6 ... display window,
7 ... wide fixed plate,
8 ... Axle,
11... driving piece,
12... biasing means,
13 ... display piece,
14... Movable obstacle,
15 ... power conversion mechanism,
17 ... trigger part,
18 ... Slider part,
18c ... a pair of engaging arms,
22 ... second guide part,
27 ... a pair of shafts,
29... drive cam portion,
31 ... Fitting portion,
32... brim portion,
33... driven cam portion,
M1...Unlock,
M2... Locking,
M1, M2... labels.

Claims (5)

A case-shaped grip portion having a display window for selectively displaying information on either locking or unlocking of the lock has a trigger portion and a slider portion integrally formed thereon, and the trigger portion is moved by an urging means. a drive piece biased in a direction to always protrude from the grip; a display piece supported so as to be rotatable within the grip by a required amount and having a mark; and an engaging portion of the slider portion. and a display-switching movable obstruction that engages and disengages from each other. This is a case where the orientation of the display switching movable obstruction is displaced by rotating to a predetermined angle in either direction of the lock. When the driving piece retreats into the grip portion, the movement of the driving piece is transmitted to the display piece as a rotational movement via a converting mechanism, and at least the sign of the display piece is switched from unlocked to locked. Portable locking/unlocking display device.
2. A portable locking/unlocking display device according to claim 1, wherein said display piece is pivotally supported so as to be able to rotate by a required amount along at least one side surface or rear surface of said driving piece. A portable locking/unlocking display device characterized by
3. The portable lock/unlock display device according to claim 1 or 2, wherein the drive piece is a substantially elongated plate in a plan view in which a trigger portion and a slider portion are integrally formed, and the trigger portion is a grip. While the slider portion has an engaging arm connected to the wide chest portion, the engaging arm is connected to a partition-like second guide portion of the grip portion. A portable locking/unlocking display device, characterized in that it extends toward the inner wall surface side of the rear end portion of the grip portion through the portion.
2. The portable locking/unlocking display device according to claim 1 , wherein said driving piece has an engaging arm, two of which extend in opposite directions, and these two engaging arms are: A portable locking/unlocking display device, characterized in that it can be held so as to hold the display switching movable obstruction.
2. A portable locking/unlocking display device according to claim 1, wherein said conversion mechanism is a driving cam portion formed on said driving piece and a driven cam portion provided on said display piece. Type locking/unlocking display device.

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