JPH0645043U - Locking device for the operating lever for opening and closing the lid of the cool box - Google Patents

Abstract

(57) [Summary] [Purpose] Lock the operation lever for opening and closing the lid of the cool box. [Structure] A lid opening / closing operation lever 26 of a cold insulation box is pivotally supported with respect to the lid 16. An engaging piece 25 is provided on the lid opening / closing operation lever, and when the lever is rotated toward the box body of the cold-insulating box, it engages with the horizontal axis provided on the box body. Try to move away from the axis. The lid or the lid opening / closing operation lever is provided with a lock member 33 that can move in and out of the rotation gap 32 of the lid opening / closing operation lever. The lock member can be operated from the outside of the lid or the lid opening / closing operation lever. The lid opening / closing operation lever can be locked by pushing the lock member into the gap.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a lock device for an operation lever for opening and closing a lid of a cold insulation box.

[0002]

[Prior art]

 The box body and lid of the conventional storage box are connected by a hinge as shown in Japanese Utility Model Laid-Open No. 1-86674. As shown in FIG. 19, this hinge includes a horizontal shaft 2 provided on the box body 1, a rib 4 provided on the lid 3, which is connectable to and separable from the horizontal shaft 2, and rotatable on the lid 3. A lid opening / closing operation lever 5 that can be connected / disconnected to / from the horizontal shaft 2 that is freely supported is provided. The rib 4 has a concave portion 6 that opens downward and holds the horizontal shaft 2, and the lid opening / closing operation lever 5 has an engaging piece 7 that is hooked on the horizontal shaft 2. The horizontal axis 2 is gripped by. Such hinges are provided at positions facing each other in the storage box, and one of the lid opening / closing operation levers 5 is operated to separate the engaging piece 7 from the horizontal shaft 2 and remove the rib 4 from the horizontal shaft 2. By doing so, the lid 3 can be rotated upward with the horizontal axis 2 of the other hinge as a fulcrum to open the storage box. Further, the lid 3 can be completely removed from the box body 1 by operating both lid opening / closing operation levers 5.

Also, as shown in FIG. 20, the hinge of Japanese Patent Application No. 3-88562 also has a recess 10 of the rib 9 of the lid 8 and an engaging piece of the lid opening / closing operation lever 11 as in the above hinge. 12 and 12 hold the horizontal axis 14 of the box body 13.

[0004]

[Problems to be solved by the device]

 However, in the lid opening / closing operation lever in the conventional hinge device, the engaging piece 7 is disengaged from the horizontal shaft 2 by a relatively small force that pulls outward, and the lid 3 is released. Therefore, if the hand touches the lid opening / closing operation lever or if a shock is applied by overturning the cold insulation box, the lid may open.

An object of the present invention is to provide a locking device capable of preventing such an accidental opening of the lid.

[0006]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention provides an operation lever for opening and closing a lid of a cool box, which is pivotally supported by the lid and is urged inward by an elastic body so that the operation lever for opening and closing the lid is opened. When the lid is rotated toward the box body of the cool box, it engages with the horizontal axis provided on the box body, and when it is rotated away from the box body, it separates from the horizontal axis. The lid or the lid opening / closing operation lever is provided on the lever and has a lock member that can be inserted into and removed from the rotation gap of the lid opening / closing operation lever, outside the lid or the lid opening / closing operation lever. It employs the structure of a lock device for the operation lever for opening and closing the lid of the cold insulation box that is mounted so that it can be operated from.

[0007]

[Action]

 When the lid opening / closing operation lever is rotated toward the box body of the cold insulation box, the engaging piece engages with the horizontal axis of the box body to connect the lid to the box body side.

Next, the lock member is operated in the locking direction from the outside of the lid or the lid opening / closing operation lever. The lock member enters into the rotation gap of the lid opening / closing operation lever and blocks the rotation of the lid opening / closing operation lever.

When opening the lid, the lock member is operated in the unlocking direction. The lock member is disengaged from the rotation gap of the lid opening / closing operation lever, so that the lid opening / closing operation lever can be rotated. Next, when the lid opening / closing operation lever is rotated outward, the engaging piece is disengaged from the horizontal shaft, and the lid can be opened.

[0010]

【Example】

Embodiments of the present invention will be described below with reference to the drawings. Embodiment 1 As shown in FIGS. 1 to 3, a cool box to which this locking device is attached is a box body 15 for storing contents such as fish and a lid for opening and closing the box body 15. 16 and.

As shown in FIGS. 7 and 8, the box body 15 and the lid 16 have shells 17 and 18 each having a surface layer portion formed therein. By being filled with the heat insulating material 19, the cold insulation property is given.

The lid 16 can be attached to and detached from the box body 15 by a hinge device 20 as shown in FIGS. 1, 5, 6, 7 and 8, and as shown in FIGS. 2 and 3. Recesses 21 and 22 for accommodating the hinge device 20 are provided in the upper portion of the box body 15 and the lid 16, respectively, and when the lid body 16 is covered with the box body 15, the box body side depression 21 and the lid side depression. And 22 so as to surround the hinge device 20. Such recesses 21 and 22 are provided on both the left and right sides of the cool box.

In this embodiment, two sets of the hinge devices 20 are provided in the left and right recesses 21 and 22 of the cold insulation box, and each of them is provided with a horizontal shaft 23 provided in the box body 15 as shown in FIG. 3, a rib 24 provided on a lid 16 that covers the box body 15 as shown in FIG. 3 and capable of being coupled / separated from the horizontal shaft 23, and a pivotally rotatably supported by the lid 16 as shown in FIG. Further, it has a lid opening / closing operation lever 26 that can be coupled / separated to / from the horizontal shaft 23 via the engaging piece 25.

The horizontal shaft 23 is horizontally fixed to the shell 17 in the box-side recess 21. The rib 24 is provided so as to project downward in the lid-side recess 22. The lower portion of the rib 24 is provided with a substantially U-shaped groove 24a into which the horizontal shaft 23 is fitted, at a position corresponding to the horizontal shaft 23.

The operation levers 26 for opening and closing the lid are provided one on each of the left and right sides of the cold insulation box, and each of them corresponds to two hinge devices and is adapted to be inserted into the recesses 21 and 22. Each of the lid opening / closing operation levers 26 has a bearing projecting piece 27 on the upper part thereof, the lid 16 has a bearing projecting piece 28 in the recess 22, and both the bearing projecting pieces 27, 28 are horizontal. By being connected via a pin 29, it can be rotated like a pendulum. A torsion coil spring 30 is attached to each pin 29, and the torsion coil spring 30 biases the lid opening / closing operation lever 26 around the pin 30 in the counterclockwise direction in FIG. Therefore, the lid opening / closing operation lever 26 is stored in the recess 22.

At the lower part of the lid opening / closing operation lever 26, two engaging pieces 25 are provided so as to project inwardly corresponding to each horizontal shaft 23. The two engaging pieces 25 are claw-shaped pieces that respectively correspond to the horizontal shaft 23, and their tips are bent upward so that they easily engage with the horizontal shaft 23. The engaging piece 25 elastically contacts the lower side of the horizontal shaft 23 when the lid opening / closing operation lever 26 rotates inward, and separates from the horizontal shaft 23 when the lid opening / closing operation lever 26 rotates outward. To do. This elasticity is further enhanced by the packing 31 provided on the lid 16 hitting the box body 15.

An inclined surface 25a is formed on the lower surface of the tip of the engaging piece 25. When the inclined surface 25a is in contact with the horizontal shaft 23 and the lid 16 is lightly pressed from above, the horizontal shaft 25a is pressed. The inclined surface 25a slides on the outer circumference of the 23, and the lid opening / closing operation lever 26 is rotated outward.

As shown in FIGS. 6 and 7, the lid opening / closing operation lever 26 is provided with a lock member 33 that can be inserted into and removed from the rotation gap 32 from the outside of the lid opening / closing operation lever 26. It is installed so that it can be operated.

As shown in FIGS. 6, 7 and 9, the lock member 33 is a plate member whose peripheral portion is removed over approximately a half circumference so as to leave the center portion of the disc, and for opening and closing the lid. It is inserted horizontally between the top plate 26a of the operation lever 26 and a bracket 34 projecting slightly below it. A vertical axis 35 is passed between the top plate 26a and the bracket 34, the vertical axis 35 vertically penetrates the center of the lock member 33, and the lock member 33 is rotatable about the vertical axis 35 as a fulcrum. Has become.

The front plate 26 b of the lid opening / closing operation lever 26 is provided with a hole 36 for allowing a part of the lock member 33 to project to the outside. As a result, the lock member 33 can be operated from the outside of the lid opening / closing operation lever 26, and when the portion protruding outward from the hole 36 is pushed tangentially with a finger, the lock member 33 rotates about the vertical axis 35. Will be done.

The lid opening / closing operation lever 26 need only rotate outwardly toward the recesses 21, 22 by an angle necessary for the engaging piece 25 to separate from the horizontal shaft 23, as shown in FIGS. 6 and 7. As described above, the rotation gap 32 for that purpose is formed between the top plate 26a of the lid opening / closing operation lever 26 and the rib-like projection 37 projecting from the shell 18 in the recess 22. Further, as shown in FIG. 9, the protrusion 37 is provided so that a part of the lock member 33 can move in and out of the rotation gap 32 as the lock member 33 rotates.

Next, the operation of the lock device will be described together with the opening / closing operation of the lid 16 of the cold insulation box. When closing the lid 16, when the lid 16 is applied to the opening of the box body 15 and lightly pressed from above, the lower slope 25a of the engaging piece 25 comes into contact with the horizontal shaft 23 and relatively slides to open and close the lid. When the operation lever 26 is rotated outward and the lid 16 is further pushed down, the engagement piece 25 sunk under the horizontal shaft 23 and engages with the horizontal shaft 23.

At the same time, the groove 24 a of the rib 24 engages with the horizontal shaft 23. As a result, the lid 16 is engaged with the horizontal shaft 23 on the box body 15 side by both the rib 24 and the engaging piece 25, and is firmly connected to the box body 15.

Next, the lock member 33, which is viewed through the hole 36 of the lid opening / closing operation lever 26, is operated to rotate around the vertical axis 35, and the unlocked state of FIG. ) Locked. As a result, the lock member 33 is interposed in the rotation gap 32 of the lid opening / closing operation lever 26, the lid opening / closing operation lever 26 cannot rotate, and the engaging piece 25 does not separate from the horizontal shaft 23.

When the lid 16 is opened, the lock member 33 is operated in the opposite direction to disengage it from the turning gap 32, and the lid opening / closing operation lever 26 is moved from the locked state of FIG. Unlock the state of B).

Next, the operation lever 26 for opening and closing the lid is held by hand and pivoted outward, and the engaging piece 25 is separated from the horizontal shaft 23. Subsequently, when the lid 16 is lifted above the box body 15, the engagement between the groove 24 a of the rib 24 and the horizontal shaft 23 is released, and the lid 16 is separated from the box body 15.

In order to open the lid 16 in an open state, the lock device on one side of the cold insulation box and the lid opening / closing operation lever 26 are left as they are, and the other side locking device and the lid opening / closing operation lever 26 are operated as described above. Then, the lid 16 may be rotated as shown in FIG. When the lid 16 is fully opened, the lid 16 comes into contact with the corner of the concave portion 21 of the box body 15 and stops with the rib 24 and the lid opening / closing operation lever 26 overlapping each other. Even in such a case, since both the groove 24a of the rib 24 and the engagement piece 25 of the lid opening / closing operation lever 26 are engaged with the horizontal shaft 23, an excessive force is applied only to the engagement piece 25. It does not take

Embodiment 2 As shown in FIGS. 10 and 11, the locking device is provided on the eaves portion 38 of the lid 16.

A lock member 39, which can be moved in and out of the rotation gap 32 of the lid opening / closing operation lever 26, is attached to the eaves portion 38 so as to be operable from the outside of the lid 16. As shown in FIG. 12, the lock member 39 has a knob 39a and a rod 39b integrated with the knob 39a. The knob 39a is formed to have an oval cross section, and the cross section provided on the eaves 38 is inserted into the oval recess 40. The rod 39b enters into the lid-side recess 22 from the recess 40, and the tip end 39c thereof can enter and exit the turning gap 32.

The lock member 39 is biased by a compression coil spring 41 in a direction in which the tip 39 c of the rod 39 b is inserted into the rotation gap 32. The compression coil spring 41 is interposed between the washer 42 fixed to the intermediate portion of the rod 39b and the lower surface of the recess 40. The washer 42 is supported by a stop ring 43 that fits in an annular groove 39d provided in the intermediate portion of the rod 39b.

The lid opening / closing operation lever 26 may be rotated outwardly of the recess 22 to the extent that the engaging piece 25 thereof can be separated from the horizontal shaft 23. As shown in FIG. 32 is formed between an edge of the top plate 26a of the lid opening / closing operation lever 26 and a rib-like protrusion 44 projecting from the shell 18 in the recess 22 toward the edge.

Next, the operation of the lock device will be described. When the lid 16 is opened, the knob 39a of the lock member 39, which is seen through the recess 40 of the eaves portion 38 of the lid 16, is grasped with a finger and pulled up against the biasing force of the compression coil spring 41, and the tip 39c of the rod 39b is moved to the above-mentioned position. It is separated from the rotation gap 32. Subsequently, the lock member 39 is twisted by about 90 ° while holding the knob 39a to change the knob 39a from the state shown in FIG. 13A to the state shown in FIG. 13B, and then the knob 39a is released. The knob 39a is caught on the peripheral edge of the depression 40 and does not return to the inside of the depression 40.

As a result, the lock member 39 is switched from the locked state of FIG. 11A to the unlocked state of FIG. 11B. Next, the lid opening / closing operation lever 26 is manually held and pivoted outward, and the engaging piece 25 is separated from the horizontal shaft 23, whereby the lid 16 can be separated from the box body 15.

To put the lid opening / closing operation lever 26 into the locked state, the knob 39a of the lock member 39 is rotated from FIG. 13B to FIG. 13A so as to coincide with the recess 40. The locking member 39 descends due to the restoring force of the compression coil spring 41, the tip end 39c of the rod 39b enters the turning gap 32, and the knob 39a sinks into the recess 40. For this reason, the lid opening / closing operation lever 26 cannot be rotated, and the engaging portion 25 does not come off from the horizontal shaft 23.

Embodiment 3 As shown in FIGS. 14 and 15, the lock device has a lock member 45 mounted on the lid opening / closing operation lever 26 so as to be operable from the outside. The lock 45 has a lock piece 45a which can be moved in and out of the rotation gap 32 of the lid opening / closing operation lever 26 by its operation.

As shown in FIG. 18, the lock member 45 has a knob 45b and a rod 45c integrated with the knob 45b. The knob 45b is formed to have a circular cross section, and is inserted into the recess 46 having a circular cross section provided on the front plate 26b of the lid opening / closing operation lever 26. The rod 45c laterally penetrates the inside boss 47 from the recess 46 into the lid-side recess 22, and the lock piece 45a is vertically fixed to the tip of the rod 45c by a stop ring 52.

The lock piece 45 a is made of a substantially oval plate material and is configured to move in and out of the rotation gap 32 as the lock member 45 rotates. When the lock piece 45a enters the rotation gap 32, the lid opening / closing operation lever 26 cannot rotate and is in a locked state, and when the lock piece 45a comes out of the rotation gap 32, the lid opening / closing operation lever is opened. The bar 26 is unlocked and can be rotated.

Further, the lock member 45 has a stopper projection 48 and a stopper groove 49 as shown in FIGS. 16 to 18 so that the lock piece 45a can be surely put in and out of the rotation gap 32. The rotation amount is regulated by. The stopper projection 48 is formed within the recess 46 within a range of about 90 ° around the hole 50 through which the rod 45c passes, and the stopper groove 49 is formed on the back side of the knob 45b within a range of about 180 °.

The lid opening / closing operation lever 26 has only to rotate to the outside of the recess 22 to the extent that the engaging piece 25 can be separated from the horizontal shaft 23, and as shown in FIG. A rotation gap 32 is formed between an end edge of the top plate 26a of the lid opening / closing operation lever 26 and a rib-like protrusion 51 protruding from the shell 18 in the recess 22 toward the end edge.

Next, the operation of the lock device will be described. When the lid 16 is opened, the knob 45b of the lock member 45, which is seen through the recess 46 of the lid opening / closing operation lever 26, is grasped with a finger, and is rotated by about 90 ° from the “LOCK” position to the “OPEN” position in FIG. Then, the lock piece 45a is separated from the rotation gap 32. Since one end of the stopper projection 48 contacts one end of the stopper groove 49, the lock member 45 accurately rotates by the angle of 90 ° and stops.

As a result, the lid opening / closing operation lever 26 is unlocked, and the lid opening / closing operation lever 26 is held by hand and pivoted outward to separate the engaging piece 25 from the horizontal shaft 23. For example, the lid 16 can be separated from the box body 15.

In order to lock the lid opening / closing operation lever 26, the knob 45 b of the lock member 45 may be rotated in the opposite direction. Since the other end of the stopper protrusion 48 abuts the other end of the stopper groove 49, the lock member 45 rotates from the “OPEN” position to the “LOCK” position, and the lock piece 45a moves in the rotation gap. It enters the inside 32 and blocks the rotation of the lid opening / closing operation lever 26. For this reason, the lid opening / closing operation lever 26 cannot rotate, and the engaging portion 25 thereof does not come off from the horizontal shaft 23.

[0043]

[Effect of device]

 According to the present invention, since the operation lever for opening and closing the lid of the cool box can be locked, even if the hand touches the operation lever for opening and closing the lid or the impact of the fall of the cool box is given, the lid is closed. It is possible to prevent the careless opening of the lid by keeping the operating lever for opening and closing.

[Brief description of drawings]

FIG. 1 is a perspective view of a cool box provided with a lock device according to the present invention.

FIG. 2 is a perspective view of a box body of the cool box.

FIG. 3 is a partially cutaway perspective view of the lid of the cold insulation box. .

FIG. 4 is a perspective view of a lid opening / closing operation lever to be attached to the lid.

5 is a sectional view taken along line VV in FIG.

FIG. 6 is a cross-sectional view showing a portion of a lock device.

7 is a sectional view taken along line VII-VII in FIG.

FIG. 8 is a cross-sectional view of a main part of a cool box with the lid opened in a single open state.

9 is a sectional view taken along the line IX-IX in FIG. 6, where (A) shows a locked state and (B) shows an unlocked state.

FIG. 10 is a perspective view showing an embodiment when the lock device is attached to the lid.

11 is a cross-sectional view taken along line XI-XI in FIG. 10, (A) showing a locked state and (B) showing an unlocked state.

FIG. 12 is an exploded perspective view of a lock member.

13A and 13B are explanatory views showing the relationship between the knob and the depression of the lock member, where FIG. 13A corresponds to the locked state and FIG. 13B corresponds to the unlocked state.

FIG. 14 is a cross-sectional view showing another embodiment when the lock device is attached to the lid opening / closing operation lever.

FIG. 15 is a perspective view of a lid opening / closing operation lever.

16 is a partial cross-sectional view showing a stopper projection of the lock member in FIG.

FIG. 17 is a front view of the portion shown in FIG.

FIG. 18 is an exploded perspective view of a lock member.

FIG. 19 is a partial cutaway sectional view of a storage box including a conventional lid opening / closing operation lever.

FIG. 20 is a partially cutaway sectional view of a storage box including another conventional lid opening / closing operation lever.

[Explanation of symbols]

 26 ... Lid opening / closing operation lever 16 ... Lid 15 ... Box body 23 ... Horizontal shaft 25 ... Engaging piece 32 ... Rotation gap 33 ... Lock member

Claims (1)

[Scope of utility model registration request] 1. An operation lever for opening and closing a lid of a cold insulation box is rotatably supported by a lid and urged inward by an elastic body, and the operation lever for opening and closing the lid is a box body of the cold insulation box. The lid opening / closing operation lever is provided with an engaging piece that engages with a horizontal shaft provided on the box body when it is turned toward, and is separated from the horizontal axis when it is turned away from the box body. Alternatively, the lid opening / closing operation lever is provided with a lock member capable of moving in and out of the rotation gap of the lid opening / closing operation lever so as to be operable from the outside of the lid or the lid opening / closing operation lever. A locking device for the operating lever for opening and closing the lid of the cold insulation box.