JP2000109117A - Locking device for container lid - Google Patents

Abstract

PROBLEM TO BE SOLVED: To confirm whether an operation lever for opening/closing a lid of a container is in an open condition or in a closed condition, and to prevent an engagement piece of the operation lever for opening/closing the lid from being damaged. SOLUTION: A locking device of a container lid locks the container lid by engaging an operation lever 3 for opening/closing the lid provided on a side surface of a lid 2 with a horizontal shaft 41 provided on a side surface of a box body 1. The turn of the operation lever 3 for opening/closing the lid is regulated to the position where an engagement piece 31 is not brought into contact with the horizontal shaft 41 when the lid is opened in a recessed part A on the lid 2 side, the turn regulation of the operation lever 3 for opening/ closing the lid is released as the horizontal shaft 41 is engaged with a groove in closing the lid opposite to the groove of a rib, and a cam 5 is turnably and pivotably supported so that the engagement piece 31 is brought into contact with the horizontal shaft. Attachment/detachment is facilitated by urging the operation lever 3 for opening/closing the lid in a direction to be engaged with the horizontal shaft 41 or in a direction not to be brought into contact with the horizontal shaft 41.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a container lid locking device in which a lid is hinged to a box so that the lid can be opened and closed.

[0002]

2. Description of the Related Art A refrigeration container or the like used for fishing, etc., in which a lid for closing an opening of a box is locked and hinged so that it can be pivoted on either of both opposing side surfaces of the box. Is known (for example, Japanese Utility Model Laid-Open No. 6-45041). In such a container locking device, at least one of the opposing side surfaces of the container including the box and the lid is formed with a recess that straddles both the box and the cover, and a horizontal axis is formed in the recess on the box side. And a rib having a groove that engages with the horizontal axis when the lid is closed is provided in the lid-side recess, and the horizontal axis has a lower side so that the horizontal axis can be gripped between the rib and the rib. A cover opening / closing operation lever having an engaging piece engaged with the shaft is rotatably supported.

However, the lid opening / closing operation lever of the conventional container lid locking device has a horizontal axis in which the horizontal axis is not gripped between the groove of the rib and the engaging piece of the lid opening / closing operation lever. Is the same state as when the lid was closed between the groove and the engaging piece, and it was misunderstood that the user closed the lid even though the lid was open. There is a problem.

[0004] When the open state is misunderstood as the closed state, in a general container, the contents are spilled by being transported in the open state. In a cool container, the ice melts and damages the contents. In addition, in the case of the double-opening lid, the locking device on the other side is unlocked and the lid is opened to cause a trouble such as dropping the lid on the sea or the like.

When the lid is closed, the inclined surface of the lower surface of the engaging piece is brought into contact with the horizontal axis when the lid is closed, so that the operating lever is returned to the open state after swinging and the engaging piece is engaged with the horizontal axis. Therefore, there is also a problem that the engaging piece is damaged without swinging the operation lever at the time of a sudden closing operation or the like.

[0006]

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in view of the above problems, and the user can change the position of the lid opening / closing operation lever between the open state and the closed state so that the user can switch to any state. Provided is a locking device for a container lid capable of recognizing whether or not there is, and preventing damage to an operation lever.

[0007]

According to the first aspect of the present invention, at least one of the opposite side surfaces (11) of the container (B) including the box (1) and the lid (2) is provided on the box (1). ) And the cover (2), a recess (A) is formed, and a horizontal axis (41) is provided in the recess (A) on the box (1) side, and the recess on the cover (2) side. (A) shows the horizontal axis (4) when the lid is closed.
A rib (21) having a groove (211) engaging with the rib (21) is provided, and the horizontal axis (4) is interposed between the rib (21) and the rib (21).
1) A locking device for a container lid in which a lid opening / closing operation lever (3) having an engagement piece (31) engaged with the horizontal shaft (41) from below so as to grip the container lid is rotatably supported. In the recess (A) on the side of the lid (2), when the lid is opened, the engaging piece (31) does not come into contact with the horizontal axis (41). The opening / closing operation lever (3) of the lid opening / closing lever (3) faces the groove (211) of the rib (21) and engages with the horizontal axis (41) in the groove (211) when the lid is closed. The cam (5) is rotatably supported so that the rotation restriction is released and the engaging piece (31) can contact the horizontal shaft (41).

According to a second aspect of the present invention, in the locking device for a container lid according to the first aspect, the engagement piece (31) of the lid opening / closing operation lever (3) is closed on the lid opening / closing operation lever (3). An urging means for sometimes urging the rotation in a direction engaging with the horizontal shaft (41) is provided.

According to a third aspect of the present invention, in the locking device for a container lid according to the second aspect, the cam (5) restricts rotation of the lid opening / closing operation lever (3) when the cam (5) is opened. And a biasing means (7) for rotating and biasing in the direction of rotation.

According to a fourth aspect of the present invention, in the locking device for a container lid according to the third aspect, the locking device is provided on opposite side surfaces (11) of the container (B).

[0011]

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 and 2 show a cold storage container B to be carried at the time of fishing or leisure. The cold storage container B is formed by interposing a heat insulating material such as urethane foam between an outer box and an inner box formed of a synthetic resin or the like, and has a box 1 for accommodating fish and the like. And a lid 2 for closing an upper opening of the box 1. In FIG. 1,
The right side of the center line CL indicates a state where the box 1 is closed by the lid 2, and the left side of the center line CL indicates an open state where the box 1 is removed by the lid 2. On the opposite side surfaces 11, 11 of the cold storage container B, a concave portion A that straddles both the box 1 and the lid 2 is provided.

The shaft seat 4 is attached to the recess A at the top of the box 1 so that the horizontal axis 41 serving as a fulcrum axis for opening and closing the lid 2 is parallel to the side surface 11 of the box 1. reference). On the other hand, in the concave portion A of the lid 2, a plate-shaped bending rib 21 ‥ 21 formed at the tip thereof with a downward groove 211 (see FIG. 4) engaging with the horizontal shaft 41 is provided so as to project downward. Have been. The lid 2 is attached to the horizontal shaft 41 attached to the box 1 so that the grooves 211 of the ribs 21 to 21 are fitted from above. Then, the lid 2 can be pivoted with the horizontal shafts 41, 41 on either side of the box 1 as fulcrums,
The box 1 can be freely opened and closed in both directions.

A groove 201 is provided in a concave shape over the entire periphery of the inner surface of the lid 2 at the portion where the box 1 and the lid 2 meet.
A packing 202 is fitted in the groove 201. On the other hand, the packing 202 of the lid 2
Are provided over the entire circumference. In a state where the lid 2 closes the box 1, as shown in FIG. 2, the convex portion 101 is in close contact with the packing 202 so as to press the packing 202, and water or the like inside the cold storage container B leaks to the outside. To prevent them from getting lost.

On both outer sides of the portion where the ribs 21 # 21 of the lid 2 are engaged with the horizontal shafts 41 # 41 of the box 1, a lid opening / closing operation for engaging and locking the lid 2 with the box 1 is provided. Covered by levers 3,3. The lid opening / closing operation levers 3 are formed in a substantially U-shape in a flat cross section, and engagement pieces 31 are provided at lower ends thereof. The operation levers 3 for opening and closing the lid are arranged such that the tips of the engagement pieces 31
It is rotatably supported inside. The engagement pieces 31, 31
Is detachable from the lower surface of the horizontal shaft 41 横 41,
The groove 21 of the rib 21 # 21 of the lid 2 is engaged with the groove 41
The cover 2 is engaged and locked with the box 1 by gripping the horizontal shafts 41 ‥ 41 between the cover 1 and the cover 1. The operation levers 3 and 3
When the lid 2 is closed with the box 1, the horizontal axis 41 軸 41
Is biased by a biasing means such as a torsion coil spring (not shown) in the direction of the closed state so as to engage with the spring.

As shown in FIGS. 3 to 7, a cam mechanism for holding the lid opening / closing operation levers 3, 3 outside when the lid is opened is provided inside the concave portion A of the lid 2. . This cam mechanism includes a pair of ribs 2 as shown in FIGS.
The cover opening / closing operation lever 3 is rotatably supported by a rotating shaft 6 erected by a retaining ring 8 between the cover opening and closing levers 21 and 21 and contacts the inner surface of the cover opening / closing operation lever 3 (see FIGS. (See FIGS. 5 and 6)
And a torsion for urging the rotary shaft so that the lower surface of the cam 5 faces the groove 211 formed at the lower end of the rib 21 の 21. And a biasing means such as a coil spring 7. In addition, the cam 5 is provided with a rib 2 on the pivot of the cam 5 so as to restrict the rotation of the cam 5.
A stopper 22 is provided between the side surface of the lid 2 and a stopper 22 for positioning the horizontal shaft 41 engaging with the 1 ‥ 21 groove 211 at a position where it can come into contact with the horizontal shaft 41.

The cam 5 is formed in a crescent shape having a substantially arc-shaped cross section in a direction orthogonal to the longitudinal direction, and a cutout 51 provided on the inner peripheral surface side of the central portion in the longitudinal direction. ing. On the inner peripheral surface side of the cam 5, bearings 52, 52 for inserting the rotation shaft 6 along the longitudinal direction are provided on both sides of the notch 51.

The torsion coil spring 7 serving as a biasing means is attached with the rotating shaft 6 inserted at the position of the notch 51 of the cam 5 and one end of the torsion coil spring 7 being hooked to the cam 5 at the other end. .
The biasing force of the torsion coil spring 7 is set to be smaller than the biasing force in the direction for rotating the lid opening / closing operation lever to the closed state, and the lid opening / closing operation lever is opened by this biasing force. It can be held.

FIG. 5 shows a state in which the lid 2 closes the box 1 and the engaging piece 31 is engaged with the horizontal shaft 41, and the lid opening / closing operation lever 3 is closed.
Indicates a closed state. In this state, the outer peripheral cam surface 53 of the cam 5 is pressed inward by the inner surface of the lid opening / closing operation lever 3, and the cam 5 is moved to its distal end surface 5a.
Is housed inside the lid opening / closing operation lever 3 with the opening facing upward. The torsion coil spring 7 maintains an urging force in a direction for rotating the cam 5 outward.

In order to open the lid 2, in the state shown in this figure, a finger is inserted from the lower side of the lid opening / closing operation lever 3 and is pulled outward, so that the engagement piece 31 and the horizontal shaft 41 are engaged. remove. Then, the cam 5 urged by the torsion coil spring rotates counterclockwise in the figure. When the cam 5 rotates to some extent, the rear portion of the cam 5 comes into contact with a stopper 22 provided on the rear portion of the cam 5 to limit the rotation of the cam 5 and hold the lid opening / closing operation lever 3 in an open state. When the lid 2 is pivoted about the opposite horizontal axis 41 shown in FIG. 1, the lid 2 is opened as shown in FIG. In this open state, the lid opening / closing operation lever 3 is rotated so that the tip of the engagement piece 31 comes to a position outside the horizontal axis 41 so that the engagement piece 31 does not interfere with the horizontal axis 41. (See FIG. 6).

On the other hand, from the opened state of FIG.
First, the groove 211 of the rib 21 and the horizontal shaft 41 are closed.
Are engaged. Then, when the upper surface of the lid 2 is pressed toward the box 1 from above, the horizontal axis 41 is inserted into the groove 21 as shown in FIG.
1, the lid 2 further rotates, and the horizontal shaft 41 presses the outer peripheral surface 53 of the cam 5 to rotate the cam 5 clockwise, thereby releasing the lid opening / closing operation lever 3 from the open state. I do. Then, the cam 5 is rotated so that the distal end side thereof, that is, the distal end surface 5a is directed upward from the rotating shaft 6, so that the lid opening / closing operation lever 3 is closed. In addition, as mentioned above,
Since the lid opening / closing operation lever 3 is rotated so that the tip of the engagement piece 31 comes to a position outside the horizontal axis 41, even if the one end side of the lid 2 is dropped, the lid 2 is pivoted. Even if the cover is closed, the engagement piece 31 of the lid opening / closing operation lever 3 is
There is no possibility that the lid opening / closing operation lever will be damaged by colliding with 1.

In the above embodiment, the insulated container B has been described. However, the present invention can be applied to a lock device such as a soundproof container or a general container in addition to an insulated container such as an insulated container or a heat insulating container.

Further, in the embodiment, the double-sided container lid in which the locking device according to the present invention is disposed on the opposite side surfaces of the container has been described, but in the present invention, one of the opposite side surfaces of the container is hinged with a hinge. It can also be used for a locking device arranged on the other side of the lid.

Further, in the embodiment, a torsion coil spring is provided as a biasing means on the lid opening / closing operation lever. However, the biasing means of the present invention uses other known elastic members by a known biasing method. The cover may be biased, or the cover may be manually closed without the biasing means.

In the embodiment, the cam 5 is supported by the rotating shaft 6 provided between the pair of ribs 21 and 21 provided on the lid 2. However, the cam 5 is supported by the outside of the single rib. Alternatively, it may be supported by other components in the recess A of the lid 2 other than the ribs.

Further, the cam 5 of the embodiment is provided with the torsion coil spring 7 as urging means, but the urging means of the present invention urges other known elastic members by a known urging method. The cam may be operated by its own weight without providing the urging means.

In this case, as shown in FIG. 6, a distal end surface 5a is formed at the distal end of the cam 5 in which the pivot O of the cam and the inner surface of the lid opening / closing operation lever 3 are orthogonal to each other. Thus, the cam can be prevented from rotating due to the force from the lid opening / closing operation lever 3 side, and the cam 5 and the lid opening / closing operation lever 3 can be held at the open position.

Further, in the cam 5 of the embodiment, a stopper 22 is provided between the shaft support portion and the side surface of the lid 2 to position the cam 5 in the opened state at a predetermined position. The stopper may be formed by a known means such as implanting a stopper pin in a constituent member of the lid 2.

Further, the cam 5 of the embodiment is formed in a crescent shape in cross section, but the shape of the cam 5 in the present invention is not limited to this, and can be formed in any shape as needed. .

[0030]

As described above, according to the first aspect of the present invention, the cam restricts rotation of the lid opening / closing operation lever when the lid is opened,
Since the lid opening / closing operation lever is held at a position where it does not contact the horizontal axis, even if one side of the lid is closed by dropping, it does not contact the horizontal axis and the lid opening / closing operation lever is damaged. Can be prevented.

Conversely, when the lid is closed, the lid opening / closing operation lever comes into contact with the horizontal axis in accordance with the engagement of the horizontal axis with the groove of the rib, and the rotation restriction is released. It does not prevent the body from closing the box.

According to the second aspect of the present invention, since the lid opening / closing operation lever is biased to rotate in a direction engaging with the horizontal axis, it is possible to assist in engaging the lid opening / closing operation lever with the horizontal axis when the lid is closed. As a result, the engagement can be reliably performed.

According to the third aspect of the present invention, since the cam is urged in the direction in which the lid opening / closing operation lever rotates, the engagement between the engaging piece of the lid opening / closing operation lever and the horizontal axis is released. Then, the lid opening / closing operation lever automatically rotates to a position where it does not contact the horizontal axis. Also, even if some impact is applied to the container at the time of the lid,
The position of the lid opening / closing operation lever can be reliably maintained.

According to the fourth aspect of the present invention, since the locking device for the container lid is provided on both opposing side surfaces of the container, the locking device can be adapted to a container having a double open lid.

[Brief description of the drawings]

FIG. 1 is a plan view of a cold storage container.

FIG. 2 is a longitudinal sectional view showing a closed state of a box and a lid of the cold storage container of FIG. 1;

FIG. 3 is a perspective view of a cam mechanism for urging a lid opening / closing operation lever to an open state.

FIG. 4 is a perspective view of a pivot portion of the cool container provided with the cam mechanism shown in FIG. 3;

FIG. 5 is a longitudinal sectional view showing a closed state of an operation lever.

FIG. 6 is a longitudinal sectional view showing an open state of the operation lever.

FIG. 7 is a cross-sectional view showing a state immediately before the cover is closed and the operation lever is locked to the support shaft.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 21 Rib 22 Stopper 211 Groove 3 Lid opening / closing operation lever 31 Engagement piece 41 Horizontal axis 5 Cam 6 Rotating axis 7 Torsion coil spring

Claims (4)

[Claims] At least one of opposing side surfaces of a container comprising a box and a lid is provided with a recess extending over both the box and the lid, and a horizontal axis is provided in the recess on the box side. A rib having a groove that engages with the horizontal axis when the lid is closed is provided in the concave portion on the lid side, and the horizontal axis is engaged with the horizontal axis from the lower side so that the horizontal axis can be gripped with the rib. A locking device for a container lid rotatably supporting a lid opening / closing operation lever having an engaging piece to be engaged, wherein the engaging piece does not come into contact with the horizontal axis when the lid is opened in the recess on the lid side. While restricting the rotation of the lid opening / closing operation lever, it faces the groove of the rib and releases the rotation restriction of the lid opening / closing operation lever with the engagement of the horizontal axis with the groove when the lid is closed. And a cam rotatably supported so that the engagement piece can contact the horizontal axis. Vessel lid of the locking device. 2. The lid opening / closing operation lever further comprises an urging means for urging the lid opening / closing operation lever to rotate in a direction in which the engaging piece of the lid opening / closing operation lever engages with the horizontal axis when the lid is closed. The locking device for a container lid according to claim 1. 3. The cam according to claim 1, wherein the cam is provided with an urging means for urging the cam in a direction for restricting the rotation of the lid opening / closing operation lever when the cam is opened. 2
3. The locking device for a container lid according to claim 1. 4. The locking device for a container lid according to claim 1, wherein the locking device is provided on both sides of the container facing each other.