KR102128290B1 - A locking structure of box lid - Google Patents

Abstract

The present invention relates to a locking structure of a box lid comprising a release lever (3) mounted at the center of the front end of a lid (2), and a locking member (6) linked to the release lever to be rotated between a locking position meshed with a stopping protrusion (11) formed to protrude from the upper end of the front side of a box body (1) to the outside and a release position released from the stopping protrusion (11). The locking structure further comprises: a rod (5) of which one end is fixed on both sides of the release lever (3); a cam (4) which is fixed on the rod (5) and comes in contact with the locking member (6); and an elastic member (7) coming in contact with the inside of the locking member (6) to apply an elastic force to elastically return the locking member (6) to the locking position. The locking member (6) is rotated to the release position released from the locking position meshed with the stopping protrusion (11) of the box body (1) by the cam (4) rotated with the rod (5) when the release lever (3) is rotated. Accordingly, through a simplified structure in which the lid is opened when the locking member rotates to the release position by rotation of the release lever, and the locking member that is rotated by the elastic member automatically rotates to the locking position when the release lever returns to the original position, manufacturing costs can be reduced and faults are reduced. User convenience is improved as the locking member is elastically locked by simply closing the lid after opening and using the lid. The box lid is maintained without being opened during movement so as to safely maintain articles such as tools in the box and prevent noise.

Description

Locking structure of box lead {A LOCKING STRUCTURE OF BOX LID}

The present invention relates to a locking structure of a box lead, and in particular, to an improved locking structure of a box lead so that it can be automatically locked by unlocking the lid of the box containing an article such as a tool box with a simplified structure and closing the lid. It is about.

In general, boxes, such as tool boxes, are installed in a car trunk or installed in a cargo compartment to accommodate tools necessary for work, dusters required for vehicle maintenance, towels for vehicle washing, or detergent.

These boxes are provided with a locking structure so that the lids, that is, the lids, are held in a locked state with respect to the upper end of the main body and the lids are opened and closed as necessary.

As an example of the locking structure of the box lead, the toolbox locking body disclosed in Korean Patent Registration No. 10-1478958 (Registration Date December 26, 2014) is a bracket that is rotated by inserting a key and a key into the key Including, and the operation piece is hinged by a first hinge pin on one side at the bottom of the bracket; A guide rod to which the other side of the working piece is welded by a welding operation; A first connection link to which the guide rod and one side are connected; A first latch that is hinged to the other side and one side of the first connection link by a second hinge pin, and the other side is hinged by a third hinge pin to the main body and is engaged with the first catching portion of the main body; A second connection link having one side connected to a second hinge pin connecting the other side of the first connection link and one side of the first catch; The other side and one side of the second connection link are hinged by a fourth hinge pin, and the other side is hinged by a fifth hinge pin to the main body and is provided with a second catch that is hooked to the second catching part of the main body. do.

However, the above-mentioned locking body of the prior art has a complicated structure, which increases the manufacturing cost, and after opening, the operator must close the lid and operate the locking means to lock the vehicle. When loading and moving, there was a problem in that the lid was opened by shaking, and the received tools could come out of the box and be lost, or noise may be generated.

Korean Registered Patent Publication No. 10-1478958 (Registration Date December 26, 2014)

An object of the present invention is to solve the problem according to the above-described prior art box lead locking structure, when the release lever is rotated, the locking member is rotated to the release position by the release lever, and then the release lever is elastically When returning to the original position, the locking member is automatically rotated to the locked position by the elastic means, thereby providing an improved box lid locking structure such that the locking member is elastically locked by simply closing the lid.

In order to achieve the above object, the locking structure of the box lid according to the present invention includes a release lever mounted at the center of the front end of the lid, a locking jaw formed to protrude outwardly from the top front of the box body in connection with the release lever. In the locking structure of the box lead having a locking member rotated between the engaging locking position and the disengaged unlocking position,

A rod having one end fixed to each side of the release lever, a cam fixed to the rod and contacting a locking member, and an elastic member contacting the inside of the locking member to act elastically to return to the locking position elastically. Includes,

It is configured to rotate the locking member from the locking position engaged with the locking jaw of the box body to the unlocking position, which is disengaged by the cam, which is rotated with the rod when the release lever is rotated.

The locking member has an outer side formed with a curved surface, and an upper portion in which the cam contacts, a lower portion formed in a vertical surface on the lower side, and a locking portion formed in a shape bent upward from a lower portion of the lower portion and an inner side of the upper and lower portions. It includes a reinforcing portion formed for rigid reinforcement, the reinforcing portion is configured to be characterized in that through holes formed in the lateral direction are formed.

Housings for accommodating and supporting the locking members are provided on the inner surfaces of both sides of the front side of the lid, and the locking members are rotatably arranged in the housing by pins.

The housing is rectangular, the upper side is open, and the bottom is partially open at the front side, and the lower part of the front side is open, and holes are formed on both side walls to form pins on the side walls of the housing and locking holes. It is inserted through the through-hole of the member to support the locking member so as to be rotatable.

The elastic member is a plate spring of a bent shape, the lower part of which is fixed to the bottom of the housing, and the bent upper part contacts the curved upper inner surface of the locking member disposed in the housing to elastically return the locking member to its original position. Support.

Grooves that are rotatably disposed on the upper side of the inner sidewall of the housing may be formed to rotatably support rods fixed to both sides of the release lever.

According to the present invention, the lid is rotated to the release position by the rotation of the release lever and the lid is opened, while when the release lever is returned to the original position, the locking member rotated by the elastic means is automatically rotated to the lock position. With a simplified structure, the manufacturing cost can be lowered, the occurrence of failure is reduced, and the lid is opened and the lid is simply closed after use, so that the locking member remains elastically locked, so that the items in the box can be safely stored. There is an improvement in ease of use, and the box lid is kept open while moving, so that articles such as tools in the box can be safely maintained and noise is prevented.

1 is a schematic perspective view of a box employing a box lid locking structure according to the present invention.
FIG. 2 is a perspective view showing a state in which the locking structure of FIG. 2 is assembled to a box marked with a virtual line.
Figure 3 is a schematic exploded perspective view showing a locking structure for opening and closing the lead of Figure 2;
Figure 4 is a schematic front view showing the state in which the release lever is arranged in Figure 1 with a dotted line.
Figure 5 is a cross-sectional view showing the relationship between the release lever and the locking member when the lid is in the locked state.
6 is a cross-sectional view showing that the locking member is unlocked when the release lever is rotated to open the lid in FIG. 5.
7 is a cross-sectional view showing a state in which the locking member is engaged with the locking jaw of the lid in the state of FIG. 5 and maintained with the elastic force of the elastic member.
8 is a cross-sectional view showing a state in which the elastic member provided on the upper inner side is elastically deformed while the locking member is rotated when released from the locked state in FIG. 6.

Hereinafter, with reference to the accompanying drawings showing an embodiment of the locking structure of the box lid of the present invention will be described in more detail the present invention.

1 to 4, the locking structure of the box lead according to the present invention is rotated between the locking position engaged with the locking jaw 11 formed to protrude outwardly from the front top of the box body 1 and the unlocking position disengaged. It is possible that the release lever 3 mounted at the center of the front end of the lead 2, and the rods 5 and the release levers respectively provided with one end fixed to both sides of the release lever 3 and the cam 4, respectively. The locking member 6, which is rotated by the cam 4 of the rod 5, which comes into contact with the release lever 3 and is in contact with the cam 4 of the rods 5 provided on both sides of (3), the locking member (6) includes an elastic member (7) acting as an elastic force to a locking position engaged with the locking jaw (11) of the box body (1).

The box referred to in this specification includes, for example, a tool box, a tool box provided in a vehicle trunk or disposed in a cargo compartment, and other items storage boxes in which lids are opened and closed to store other items.

The release lever 3 is disposed in the recess 21 formed concavely in the center of the front end of the lid 2, and the rods 5 fixed to both sides of the release lever 3 are respectively shown in the drawing. As shown briefly, the through hole 23 formed in the side walls 22 of the groove 21 formed in the front center of the lead 2 is disposed.

The locking member (6) has an upper portion (61) formed with a curved surface on the outside, and a locking portion (63) formed in a shape bent upward from the lower portion of the lower portion (62) and the lower portion (62) formed in a vertical surface on the lower side thereof. And a reinforcement portion 65 formed for rigid reinforcement inside the upper and lower portions. The reinforcing portion 65 is formed with a through hole 66 that penetrates laterally.

Housings (8) for receiving and supporting the locking members (6) are provided on each inner side of each side of the front side of the lid (2), and each of the housings (8) is on the front inner side of the lid (2). The front side of the locking member 6 is accommodated in the formed insertion groove 24 to be inserted or injected or fixed by a known biting method.

The housing 8 has a rectangular upper side open, the bottom 81 has a part of the front side open, and a lower side of the front side is open, and holes 83 are formed on both side walls 82 at the bottom. As the pin 84 is inserted through the hole 83 formed in the side wall 82 of the housing 8 and the through hole 66 of the locking member 6, the locking member is pinned in the housing 8 It is arranged to be rotatable by (84).

On the bottom 81 of the housing 8, an elastic member 7 such as a plate spring bent in the shape of a “b” is provided with the lower portion fixed, and the bent upper portion 71 is a locking member disposed in the housing It is in contact with the inner surface of the curved upper portion 61 of (6) to support the locking member 6 to be returned to its original position elastically.

In addition, grooves 85 are formed at the upper end of the inner side wall 82 of the housing 8 so that the rods 5 fixed to both sides of the release lever 3 are rotatable in the grooves 85 Support.

The operation at the time of use of the locking structure of the box lid according to the present invention having the above-described configuration will be described with reference to FIGS. 5 to 8.

In the state shown in FIG. 5, when the user lifts the release lever 3, as shown in FIG. 6, while the rods 5 fixed on both sides rotate, the cams provided on each of the rods 5 ( 4) As the rotation is rotated together, the upper part 61 of the locking member 6 in contact with the long-diameter portion of the cam is pressed, and the locking part 6 is rotated counterclockwise so that the locking part 63 of the lower part is the box body ( It is released from the locking position engaged with the locking jaw 11 of 1).

At this time, when the locking member 6 is pressed downward by the cam, the elastic member 7 disposed inside the upper locking member 6 is elastically pressed as shown in FIG. 8 in the state of FIG. 7.

When the user releases the release lever 3, the elastic member 7 disposed on the inner side of the locking member 6 is pressed against the upper part 61 of the locking member 6 by the elastic restoring force while being elastically pressed. Pushing in the direction, that is, rotating clockwise, the locking portion 63 of the lower portion is positioned at the locking position as shown in FIG. 7.

As described above, according to the present invention, by lifting the release lever, for example, in the state where the box lid is opened, the required work tool is taken out, and then the lid is closed to descend by the weight of the lid. At this time, the locking portion 63 of the lower end of the locking member 6 by the descending force due to the self-weight of the lead, when hitting the locking jaw 11 of the box body in the state shown in Figure 7, the locking member is engaged The part 63 is locked by elastic engagement with a clicking sound, so that the user does not have to lock the lid by operating the locking means separately, thereby improving the convenience of use.

The present invention can be used in a locking structure for opening and closing a lid of an article storage box such as a tool box to a locking position and a release position with respect to the box body.

1: Box body 11: Hanging jaw
2: Lead 21: Groove
22: side wall 23; Through hole
24; Insertion groove 3: release lever
4: cam 5; road
6: Locking member 61: Upper
62: lower portion 63: engaging portion
65: reinforcement 66; Through hole
7; Elastic member 8; housing

Claims (6)

Release lever (3) mounted at the center of the front end of the lead (2), locking position engaged with the release lever and locking position engaged with the locking jaw (11) formed to protrude outward from the front top of the box body (1) A locking member (6) that is rotated between the unlocking positions, and a rod (5) with one end fixed to both sides of the release lever (3), and a cam fixed to the rod (5) and in contact with the locking member (6) (4) and in the locking structure of the box lead having an elastic member (7) that contacts the inner side of the locking member (6) and acts elastically to return to the locking position.
When the release lever 3 rotates, the locking member 6 is disengaged from the locking position engaged with the locking jaw 11 of the box body 1 by the cam 4 rotated with the rod 5. To be rotated to the released position,
Housings (8) for receiving and supporting the locking members (6) are provided on the inner surfaces of each side of the front side of the lid (2), the locking member (6) is a housing (8) by a pin (84) Locking structure of the box lead, characterized in that it is arranged to be rotatable within.
According to claim 1,
The locking member 6 is bent upward from the lower part of the upper part 61 and the lower part 62 and the lower part 62, which are formed on the lower side, and the lower part 62 formed on the lower side of the cam 4, the outer side being formed as a curved surface. It includes a locking portion (63) formed in a shape and a reinforcement portion (65) formed for rigid reinforcement inside the upper and lower portions, and the through hole (66) penetrating in the lateral direction is formed in the reinforcement portion (65). Box lead locking structure, characterized in that.
delete According to claim 1,
The housing 8 has a rectangular upper side open, the bottom 81 has a part of the front side open, and a lower side of the front side is open, and holes 83 are formed on both side walls 82 at the bottom. The pin 84 is inserted through the hole 83 formed in the side wall 82 of the housing 8 and the through hole 66 of the locking member 6 to support the locking member 6 so as to be rotatable Box lead locking structure, characterized in that.
The method of claim 4,
The elastic member 7 is a plate spring of a bent shape, the lower part being fixed to the bottom 81 of the housing 8, and the bent upper part 11 is a curved upper part of the locking member 6 disposed in the housing ( 61) Locking structure of the box lead, which is in contact with the inner surface to support the locking member (6) to return to its original position elastically.
According to claim 1,
Grooves (85) in which the rod (5) is rotatably disposed at the upper end of the inner side wall (82) of the housing (8) to rotatably support the rods (5), respectively fixed to both sides of the release lever (3). ) Is formed, the locking structure of the box lead.

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