KR102626041B1 - Locking Device of the case - Google Patents

Abstract

The locking device of the case is initiated.
The case locking device according to one aspect of the present invention is a locking device provided in a case including a pair of shells that form a space of a certain size for storing contents when combined, and is provided on the top of one of the pair of shells. A rotating plate that rotates in the forward or reverse direction by rotating a rotating handle disposed adjacent to the gripping handle provided; a first operating bar connected to the rotating plate and a first link member and reciprocally assembled to a first guide rail installed on an upper inner surface of the one shell; A second operating bar is connected to the rotating plate and a second link member and is movably assembled to a second guide rail installed on the upper inner surface of the one side shell; Each lower end is rotatably connected to both ends of the second operation bar, the middle length is rotatably assembled via a pair of pin members installed on the upper inner surface of the one shell, and a pair of bars are provided on the upper inner surface of the other shell. Including a pair of locking levers having a hook at the upper end corresponding to the locking ring of The hook can be locked or released.

Description

Locking Device of the Case}

The present invention relates to a locking device provided in a case, and more specifically, while holding the handle and moving the case, the locking binding force is stably maintained by the external force transmitted from the handle, thereby fundamentally preventing unnecessary opening when the case is grasped and moved. It concerns the locking device of the case.

In general, cases with separate locking devices, such as briefcases or travel suit cases, are gaining popularity among people because they can accommodate various items and are convenient to use as they have a handle at the top center for the user to hold with one hand.

These cases are carried by the user holding the handle provided in the center of the top. To take out the contents, the user places the case on the floor or a desk and presses the open button on both sides, which opens the locking device and creates an internal space of a certain size when combined. The pair of bodies opens on both sides.

(Patent Document 1) KR 10-2021-0058085 A

(Patent Document 2) KR 20-0478614 Y1

Patent Document 1 includes an operation unit installed on one side of the storage unit to operate locking and unlocking, a connection cord that is coupled to the operation unit and whose length is variable by the operation unit, and is installed on the storage unit and the cover to change the length of the connection cord. discloses a luggage case that is equipped with a locking part for fixing the storage part and the cover part and locks or opens the storage part and the cover part by mutually locking them.

In Patent Document 2, a hook-type operating member is provided on the bag body below the carrying handle so that it can be operated by pulling it using one of the fingers holding the carrying handle, and when the hook-shaped member is operated, it is fixed to the bag cover from a latch member built into the main body. A briefcase whose cover is automatically opened by releasing the lock ring is being disclosed.

However, if the locking device provided near the handle of the case is damaged or broken, the case may be unexpectedly opened while the user is moving the case due to a defect in the locking device, causing the items stored in the case to spill out. It caused discomfort.

The present invention is intended to solve the above-mentioned problems, and the purpose of the present invention is to stably maintain the binding force by external force transmitted from the handle while moving the case while holding the handle, thereby fundamentally preventing unnecessary opening when the case is held and moved. We would like to provide a locking device for the case.

The technical problems to be achieved in the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the description below. You will be able to.

According to one aspect of the present invention, in a locking device provided in a case including a pair of shells that form a space of a certain size for storing contents when combined, a gripping handle provided on an upper part of one of the pair of shells A rotating plate that rotates in the forward or reverse direction by rotating a rotating handle disposed adjacent to the; a first operating bar connected to the rotating plate and a first link member and reciprocally assembled to a first guide rail installed on an upper inner surface of the one shell; A second operating bar is connected to the rotating plate and a second link member and is movably assembled to a second guide rail installed on the upper inner surface of the one side shell; Each lower end is rotatably connected to both ends of the second operation bar, the middle length is rotatably assembled via a pair of pin members installed on the upper inner surface of the one shell, and a pair of bars are provided on the upper inner surface of the other shell. Including a pair of locking levers having a hook at the upper end corresponding to the locking ring of A case locking device is provided, characterized in that it locks or unlocks the hook.

At this time, the other end of the first operation bar corresponding to the grip handle has a slot-shaped long hole in which a locking bolt provided at one end of the grip handle is movably disposed, and the other end of the grip handle has a fixing bolt. It can be fixedly installed on the top of one side of the shell.

At this time, one end of the first link member is connected to a first boss among the plurality of bosses provided on the rotating plate via a first connection pin, and the other end of the first link member is connected to a first connection other than the first operation bar. It is connected via a pin, and one end of the second link member is connected via a second boss and a second connection pin among the plurality of bosses provided on the rotating plate, and the other end of the second link member is a pair of locking levers. It may be connected to the second operation bar through another first connection pin so that it is located biased toward one of the locking levers.

At this time, it includes a third link member disposed between the first link member and the second link member, and one end of the third link member is a third link member located between the first boss and the second boss. It is connected to the boss through a third connection pin, and the other end of the third link may be connected to the second operation bar through a third connection pin so that the other end of the third link is positioned at a bias toward the first operation bar.

At this time, one side of the first operating bar includes a first protrusion formed to partially contact the inner surface of the one shell, and one side of the second operating bar includes a first protrusion that partially contacts the inner surface of the one shell. It may include a second protrusion that protrudes long in the longitudinal direction.

At this time, the gripping handle may include at least one thin elastic plate or at least one thin magnetic member that generates attractive force by having a polarity different from that of the magnetic member provided in the one shell.

According to the above configuration, the case locking device according to the present invention horizontally moves the first operating bar and the second operating bar connected through the rotating plate and the link member in opposite directions due to the forward or reverse rotation of the rotating plate by the user. While doing so, the locking and unlocking between the hook of the locking lever provided on one side of the shell and the locking ring provided on the other shell can be easily and quickly performed, thereby increasing convenience in use compared to the dial locking method.

In addition, while the user holds the case's grip handle and lifts and moves the case, the horizontal movement of the first and second operating bars can be restricted and restrained by the locking bolt of the grip handle that is deformed into a curved shape. In the process of lifting and moving, the lock between the hook and the locking ring is released, preventing the inconvenience of using the case from unexpected opening.

The effects of the present invention are not limited to the effects described above, and should be understood to include all effects that can be inferred from the configuration of the invention described in the detailed description or claims of the present invention.

1 is an external view of a case to which a locking device according to an embodiment of the present invention is applied.
Figure 2 is a usage state diagram showing a locked state of a case to which a locking device according to an embodiment of the present invention is applied.
Figure 3 is a usage state diagram showing the unlocked state of a case to which a locking device is applied according to an embodiment of the present invention.
Figures 4a and 4b are exploded perspective views showing a case locking device according to an embodiment of the present invention.
Figures 5a and 5b are diagrams illustrating a state in which another rotating plate is applied to a case locking device according to an embodiment of the present invention.
Figures 6a and 6b are perspective views showing a case locking device in a locked state according to an embodiment of the present invention.
Figures 7a and 7b are perspective views showing a case locking device in an unlocked state according to an embodiment of the present invention.
Figure 8 is a use state diagram showing a state in which a case equipped with a locking device according to an embodiment of the present invention is lifted by a grip handle.
Figure 9 is a detailed view showing the movement of the locking bolt while the case to which the locking device according to an embodiment of the present invention is applied is lifted by the grip handle.
Figures 10a and 10b are diagrams showing the configuration in which an elastic plate and a magnet member are applied to the gripping handle of the case locking device according to an embodiment of the present invention.

Hereinafter, with reference to the attached drawings, embodiments of the present invention will be described in detail so that those skilled in the art can easily implement the present invention. The present invention may be implemented in many different forms and is not limited to the embodiments described herein. In order to clearly explain the present invention, parts not related to the description have been omitted in the drawings, and identical or similar components are given the same reference numerals throughout the specification.

The words and terms used in this specification and claims are not to be construed as limited in their usual or dictionary meanings, but according to the principle that the inventor can define terms and concepts in order to explain his or her invention in the best way. It must be interpreted with meaning and concepts consistent with technical ideas.

Therefore, the embodiments described in this specification and the configuration shown in the drawings correspond to a preferred embodiment of the present invention, and do not represent the entire technical idea of the present invention, so the configuration may be replaced by various alternatives at the time of filing of the present invention. There may be equivalents and variations.

In this specification, terms such as “comprise” or “have” are intended to describe the existence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to describe the presence of one or more other features. It should be understood that it does not exclude in advance the possibility of the existence or addition of elements, numbers, steps, operations, components, parts, or combinations thereof.

A component being “in front,” “rear,” “above,” or “below” another component means that it is in direct contact with the other component, unless there are special circumstances. This includes not only those placed at the “bottom” but also cases where another component is placed in the middle. In addition, the fact that a component is "connected" to another component includes not only being directly connected to each other, but also indirectly connected to each other, unless there are special circumstances.

Hereinafter, a case locking device according to an embodiment of the present invention will be described with reference to the drawings.

As shown in FIGS. 1, 2, and 3, the case locking device 100 according to a preferred embodiment of the present invention includes a pair of shells 1 and 2 that form a space of a certain size for storing the contents when combined. ) A rotating plate (10), a first operating bar (20), a second operating bar (30), and a pair of shells are provided in the case (C) containing It may include a locking lever (40).

Among the pair of shells 1 and 2, one shell 1 equipped with the locking device 100 is provided as a storage shell for storing and storing contents such as clothes or documents, and the other shell 2 is provided with the locking device. The hook 41 of the locking lever 40 constituting the device may be equipped with a locking ring 5 to which the locking lever 40 is connected, and may be provided as a cover shell covering one open side of the storage shell.

As shown in FIGS. 2, 3 and 4A and 4B, the rotating plate 10 is a rotating handle disposed adjacent to the gripping handle 3 provided at the upper end of one shell 1 of the pair of shells. It is a roughly disk-shaped rotating member that is rotated approximately 90 degrees in the forward direction or in the reverse direction by the rotation operation of (15).

The rotation handle 15 is a roughly straight handle exposed to the upper outer surface of the one side shell and has a connection shaft 15a that is inserted through a connection hole formed through the upper part of the one side shell and connected to the rotation plate 10. It may be made, but is not limited to this, and may be made of a roughly cylindrical handle.

On the lower surface of the rotating plate 10, a plurality of first, second and third protrusions are formed at regular intervals in the circumferential direction so as to be connected to the first and second links 21 and 31 and the third link member 32, which will be described later. Bosses (11, 12, 13) can be provided.

At this time, as shown in FIGS. 2 and 3, the rotating plate 10 is coupled with a rotating handle provided on the lower surface with a connecting shaft 15a disposed through the connecting hole of the one side shell 1, so that the one side Although it is shown and described as being disposed inside the shell, it is not limited thereto, and the rotating plate 10 penetrates the connection hole 19 formed through one side of the shell 1, as shown in FIGS. 5A and 5B. Another connection shaft (10a) is disposed on the lower surface, and first, second and third bosses are disposed on the lower surface in an arc-shaped guide hole (18) formed through and adjacent to the connection hole (19), It is provided integrally with the rotation handle 15 and can be installed to be exposed to the outside on the upper outer surface of one side of the shell.

As shown in FIGS. 2, 3 and 4A and 4B, the first operation bar 20 has both edges in contact with the first guide rail 25 installed on the upper inner surface of the shell 1, so that it moves forward and backward. It may be made of thin plate members of a certain length that are assembled to enable true reciprocating movement.

This first operating bar 20 is a first operation bar 20 of which one end is rotatably assembled via the first boss 11 and the first connection pin 21a among the plurality of bosses protruding from the lower surface of the rotating plate 10. It can be rotatably assembled via the first connection pin (21b), which is different from the other end of the link member (21).

At the other end of the first operating bar 20 corresponding to the gripping handle 3, a slot-shaped long hole 23 is formed through such that a locking bolt 3a provided at one end of the gripping handle 3 is disposed. It can be included.

The other end of the gripping handle 3, which has the locking bolt 3a at one end, is fixed to the one shell 1 by a fixing bolt 3b fastened to the top of the one shell 1. You can.

In addition, at the upper end of one side of the shell (1) corresponding to the slot-shaped long hole (23), the connecting portion of the gripping handle (3) coupled to the locking bolt (3a) is formed through a penetrating portion so that it can move back and forth. It may include a straight guide hole (9).

One side of the first operating bar (20) corresponding to the inner surface of the one-side shell (1) partially contacts the inner surface of the one-side shell (1) during the forward and backward reciprocating movement by rotating the rotation handle (15). It may include a first protruding portion 29 that is formed to protrude so as to reduce frictional resistance and reinforce rigidity.

Accordingly, when the rotation plate is rotated in the forward or reverse direction through the rotation handle, the first operation bar connected to the rotation plate and the first link member may reciprocate in the longitudinal direction of the grip handle.

As shown in FIGS. 2, 3 and 4A and 4B, the second operation bar 30 is provided in parallel with the first guide rail 25 installed on the upper inner surface of the one side shell 1. 2. Both edges are in contact with the guide rail (35) and are assembled to enable forward and backward reciprocating movement, and may be made of a thin plate member of a certain length extending relatively longer than the entire length of the first operating bar (20).

This second operating bar 30 is a second operation bar of which one end is rotatably assembled via the second boss 12 and the second connection pin 31a among the plurality of bosses protruding from the lower surface of the rotating plate 10. It can be rotatably assembled via a second connection pin (31b) that is different from the other end of the link member (31).

At this time, the first connection pin (21a) connected to one end of the first link member (21) and the second connection pin (31a) connected to one end of the second link member (31) are connected to the rotating plate (10). They may be provided on the first and second bosses 11 and 12 respectively provided on the lower surface of the rotating plate so that they are positioned in opposite directions with a phase difference of approximately 180 degrees based on the center of rotation.

In addition, the second operating bar 30 is rotatably assembled at one end via the third boss 13 and the third connection pin 32a among the plurality of bosses protruding from the lower surface of the rotating plate 10. It can be rotatably assembled via a third connection pin (32b) that is different from the other end of the third link member (32).

One end of the third link member 32 disposed between the first link member 21 and the second link member 31 has a third boss located between the first boss and the second boss. It is connected via a connection pin (32a), and the other end of the third link member is connected via a second operation bar (30) and a third connection pin (32b) corresponding to the space between the first operation bar and the rotating plate. You can.

One side of the second operating bar (30) corresponding to the inner surface of the one-side shell (1) partially contacts the inner surface of the one-side shell (1) during the forward and backward reciprocating movement by rotating the rotation handle (15). It may include a second protrusion 39 that protrudes long in the longitudinal direction to reduce frictional resistance and reinforce rigidity.

Accordingly, when the rotating plate is rotated in the forward or reverse direction through the rotating handle, the second operating bar connected to the rotating plate and the second and third link members reciprocates in the longitudinal direction of the gripping handle together with the first operating bar. It can be.

At this time, the second link member 31, one end of which is connected to the second boss 12 provided on the rotating plate 10 and the second connection pin 31a, is one of the pair of locking levers (40). ), the other end is connected to the second operation bar 30 through another second connection pin (31b), while the third boss 13 and the third connection pin provided on the rotating plate 10 The third link member 32, one end of which is connected via (32a), has a third connection pin (32b) attached to the second operation bar 30 so that it is positioned adjacent to the first operation bar 20 and biased. The second link member 31 and the third link member 32, which are connected to the second operating bar 30 by connecting the other end through an intermediary, are arranged in opposite directions with respect to the rotating plate, so that they move in the forward direction of the rotating plate. Or, the forward and backward movement of the second operating bar 30, which has a length relatively longer than the first operating bar and has a weight heavier than the weight of the first operating bar, performs the pulling operation and the pushing operation in opposite directions when rotating in the reverse direction. Round trip movement can be performed more smoothly.

As shown in FIGS. 2, 3 and 4A and 4B, the pair of locking levers 40 are rotatable at both ends of the second operation bar 30 via support pins 42. It is connected and rotatably assembled in the middle of the length via a pair of pin members 43 installed on the upper inner surface of the one shell, and a pair of locking rings 5 provided on the upper inner surface of the other shell 2. It may include a hook 41 bent at an approximately right angle at each upper end corresponding to the .

Accordingly, when the rotation plate is rotated in the forward or reverse direction through the rotation handle, the lower end is connected to the support plate of the second operation bar, and the locking lever connected in the middle of the length to the pin member moves the second operation bar forward and backward. As the pin member is rotated around the rotation center in conjunction with the movement, the hook is latched to the locking ring to perform locking between a pair of shells, or the hook is released from the locking ring to perform unlocking between a pair of shells. .

Figures 6a and 6b are perspective views showing a case locking device in a locked state according to an embodiment of the present invention, and Figures 7a and 7b are a case locking device in an unlocked state according to an embodiment of the present invention. This is a perspective view showing the converted state.

That is, when the user rotates the straight knob of the rotary handle 15 parallel to the longitudinal direction of the gripping handle 3 approximately 90 degrees forward in one direction (A1) so that it is perpendicular to the gripping handle, the rotary handle 15 The second operating bar 30 is connected via the second and third link members 31 and 32, each end of which is connected to the second and third bosses provided on the rotary plate 10 coupled with the right direction (A2) in the drawing. ) is moved horizontally a certain distance.

In this case, a pair of locking levers 40 provided at both ends of the second operating bar 30 rotate the pin member 43 provided on one side of the shell in conjunction with the horizontal movement of the second operating bar 30. By rotating in the forward direction (A3) around the center, the hook provided at the top of the pair of locking levers is locked to the locking ring provided on the other shell to prevent the pair of shells (1.2) joined to accommodate the contents from disengaging from each other. It switches to a locked vertical state.

On the other hand, if the user rotates the straight knob of the rotary handle 15, which was perpendicular to the longitudinal direction of the gripping handle 3, in the reverse direction by approximately 90 degrees in one direction (B1) so that it is parallel to the gripping handle, the rotary handle The second operating bar 30 connected via the second and third link members 31 and 32, each end of which is connected to the second and third bosses provided on the rotating plate 10 coupled with (15), is located on the left side in the drawing. It moves horizontally a certain distance in direction (B2).

In this case, a pair of locking levers 40 provided at both ends of the second operation bar 30 rotate the pin member 43 attached to one side of the shell in conjunction with the horizontal movement of the second operation bar 30. By rotating in the reverse direction (B3) in the drawing, the hook provided at the top of the pair of locking levers is released from the locking ring provided on the other shell, and the pair of shells (1.2) joined to accommodate the contents are released from each other. The state is converted to a slope state.

At this time, the second link member 31 and the third link member 32 are arranged in opposite directions with the rotating plate 10 as the center and connected to the second operating bar 30, thereby forming the second link member. Because an external force can be generated to push or pull the second operating bar and at the same time an external force can be generated to pull or pull the second operating bar by the third link member, the pair of locking By switching the lever to a vertical or inclined state, horizontal reciprocating movement of the second operating bar 30 for locking or releasing can be performed more smoothly.

In addition, the horizontal reciprocating movement of the second operating bar 30 is caused by forward or reverse rotation of the rotating plate 10 through the rotating handle, and at the same time, the first boss of the rotating plate is connected to the first link member 21. The first operating bar 20 may simultaneously reciprocate in directions opposite to the horizontal reciprocating movement of the second operating bar.

In this case, when the horizontal reciprocating movement of the first operation bar 20 is made in a state in which the gripping handle 3 is held in a straight line at the center of the upper outer surface of one shell 1, the first operating bar 20 is held in a straight line. Since the locking bolt (3a) provided at one end of the gripping handle (3) is located in the slot-shaped long hole (23) formed through one end of the operation bar, the horizontal reciprocating movement of the first operation bar is as described above. This can be performed without interference with the locking bolt (3a).

Figure 8 is a state diagram illustrating a state in which a case to which a locking device according to an embodiment of the present invention is applied is lifted by a gripping handle, and Figure 9 is a state diagram showing a state in which a case to which a locking device according to an embodiment of the present invention is applied is lifted by a gripping handle. This is a detailed diagram showing the movement of the locking bolt in the lifted state.

In a locked state in which the straight knob of the rotary handle 15 is perpendicular to the gripping handle and the hook 41 of the locking lever 40 is locked to the locking ring 5 to generate a locking force, the user holds one shell ( When the case is lifted while holding the gripping handle 3 that is held in a straight line at the center of the upper outer surface of 1), the gripping handle is deformed into a curved shape convex upward and a straight guide hole formed through the upper outer surface of one shell ( 9) and the locking bolt (3a) moves toward the fixing bolt (3b) along the slot-shaped long hole (23) of the first operation bar and comes into contact with one end of the slot-shaped long hole (23) corresponding to the gripping handle. You can.

In addition, the locking bolt (3a), which moves when gripping the gripping handle (3) for lifting the case (C), is in contact with one end of the slot-shaped long hole (23) when the user grips the gripping handle to hold the case. (C) can be lifted and held while moving.

In this case, the horizontal movement of the first operating bar 20 toward the rotating plate 10 in the right direction in the drawing is fundamentally caused by interference between the locking bolt of the holding handle and the slot-shaped long hole of the first operating bar. Since this can be prevented, the second operating bar, which moves in a direction opposite to the moving direction of the first operating bar, is horizontally moved toward the gripping handle in the left direction in the drawing, and the hook 41 of the locking lever is hooked ( 5), it fundamentally blocks the release of the locking restraint, thereby preventing malfunctions that occur when a pair of shells separate from each other while the user moves the case while holding it.

Meanwhile, if the user places the case (C) on the desk and then rotates the rotating plate (10) in the unlocking direction by rotating the rotating handle (15) in the reverse direction without holding the holding handle, , the second operating bar 30 is horizontally moved toward the gripping handle, while the first operating bar 20 is horizontally moved toward the rotating plate away from the gripping handle and moved in opposite directions, so that the slot type The locking bolt (3a) in contact with one end of the long hole (23) can be moved in a direction away from the fixing bolt (3b), and as a result, the gripping handle (3), which had been deformed into a curved shape, is converted to a straight state and is attached to one side of the shell. It can be returned to its initial state in close contact with the upper surface of the.

In addition, the gripping handle 3 includes at least one thin elastic plate 6, as shown in FIG. 10A, or a magnet member (not shown) provided on one side of the shell, as shown in FIG. 10B. It may include at least one thin magnetic member (7) having a polarity different from that of the polarity and having an attractive force to attract each other.

Accordingly, by providing a thin elastic plate or a thin magnetic member on the inner or outer surface of the body of the gripping handle, the gripping handle that is deformed to be convexly curved upward when lifting the case from the bottom to the top has the thin elastic It can be smoothly adhered to the upper outer surface of one shell by external force (F) such as the elastic restoring force of the plate or the magnetic force of the thin magnet member.

Although the embodiments of the present invention have been described, the spirit of the present invention is not limited to the embodiments presented in this specification, and those skilled in the art who understand the spirit of the present invention can add or change components within the scope of the same spirit. , deletion, addition, etc., other embodiments can be easily proposed, but this will also be said to fall within the scope of the present invention.

1,2: Shell 3: Handle for gripping
10: Rotating plate 15: Rotating handle
20: first operating bar 21: first link member
23: slot-type long hole 25: first guide rail
30: second operating bar 31: second link member
32: third link member 35: second guide rail
40: Locking lever 41: Hook

Claims (6)

In the locking device provided in the case including a pair of shells that form a space of a certain size for storing the contents when combined,
a rotating plate that rotates in the forward or reverse direction by rotating a rotating handle disposed adjacent to a gripping handle provided on an upper portion of one of the pair of shells;
a first operating bar connected to the rotating plate and a first link member and reciprocally assembled to a first guide rail installed on an upper inner surface of the one shell;
A second operating bar is connected to the rotating plate and a second link member and is movably assembled to a second guide rail installed on the upper inner surface of the one side shell;
Each lower end is rotatably connected to both ends of the second operation bar, the middle length is rotatably assembled via a pair of pin members installed on the upper inner surface of the one shell, and a pair of bars are provided on the upper inner surface of the other shell. Including a pair of latching levers having a hook at the top corresponding to the latching ring,
A locking device for a case, characterized in that the hook is locked or released from the locking ring by rotating a pair of locking levers by a second operating bar that moves forward or backward when the rotating plate rotates in the forward or reverse direction. According to paragraph 1,
At the other end of the first operation bar corresponding to the grip handle, a slot-shaped long hole is formed through which a locking bolt provided at one end of the grip handle is movably disposed, and the other end of the grip handle is connected by a fixing bolt. A locking device for a case, characterized in that it is fixedly installed on the top of one side of the shell. According to paragraph 1,
One end of the first link member is connected to a first boss among the plurality of bosses provided on the rotating plate via a first connection pin, and the other end of the first link member is connected to a first connection pin different from the first operation bar. One end of the second link member is connected to a second boss among a plurality of bosses provided on the rotating plate and a second connection pin, and the other end of the second link member is one side of a pair of locking levers. A locking device for a case, characterized in that it is connected to the second operation bar through another first connection pin so that it is positioned biased toward the locking lever. According to paragraph 3,
It includes a third link member disposed between the first link member and the second link member, and one end of the third link member includes a third boss located between the first boss and the second boss. A locking device for a case, characterized in that it is connected via a third connection pin, and the other end of the third link is connected to the second operation bar via a different third connection pin so that the other end of the third link is located at a bias toward the first operation bar. According to paragraph 1,
One side of the first operation bar includes a first protrusion formed to partially contact the inner surface of the one side shell,
A locking device for a case, characterized in that one side of the second operation bar includes a second protrusion extending longitudinally so as to partially contact the inner surface of the one side shell. According to paragraph 1,
The gripping handle includes at least one thin elastic plate or at least one thin magnetic member that generates attractive force by having a polarity different from that of the magnetic member provided on one side of the shell. A locking device for the case. .

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