JP6886709B2 - Lock structure of storage container - Google Patents

Description

The present invention mainly relates to a lock structure of a storage container for storing tools, small items, and the like.

Conventionally, in the lock structure provided on the lid of the storage container, in order to minimize the opening / closing operation, a lever including a hinge mechanism that engages with the container body and an engaged state of the lever are maintained. The one equipped with the lever is adopted.

For example, in Patent Document 1, a lid opening / closing is provided on the inner side surface of the locking plate 5 with a prop opening 10 in which the other end bent portion is brought into contact with the upper surface of the recessed portion 3 to urge the locking plate 5 inward. The device is disclosed.

Further, in Patent Document 2, a fastener 201 is hinged to the inner surface of the lid, and a torsion spring 3 fitted to the hinge connecting shaft, or one end is connected to the inner surface of the lid and the other end is fastened. A tool box including a spring 4 connected to the tool 201 is disclosed.

Jikkai Sho 51-126297 Utility model registration No. 3203412

However, in the lock structure [lid opening / closing device (Patent Document 1), tool box (Patent Document 2)] provided with any of the above-mentioned hinge mechanisms, the engaging portion [locking plate 5 (Patent Document 1), fastener 201] (Patent Document 2)] is fitted with an urging portion [Spring 10 (Patent Document 1), Spring 3 and 4 (Patent Document 2)], which is a separate member. There is a risk that the portion deteriorates and the locked state cannot be maintained due to a decrease in elastic force, or the urging portion falls off from the engaging portion and the locked state is erroneously released. In addition, when assembling at the time of manufacturing, it is necessary to fit an urging part to the lid and the engaging part, and the work efficiency of assembling is not good, and the number of parts increases, so the cost for manufacturing is high. There was a drawback of hanging.

Therefore, the lid of the storage container can be opened and closed with a minimum of movement to take out the tools stored in the storage container, and even if the handle provided on the lid is grasped, lifted and carried, it is firmly locked. It is desired to provide a lock structure for a storage container that can maintain the state and can be easily assembled without fitting the urging portion to the engaging portion.

In view of the above problems, the present invention has a container body, a lid body that can be opened and closed on one side of the container body so as to cover the upper end open surface of the container body, and a lid body that is pivotally attached to the lid. It is a lock structure of a storage container provided on opposite side surfaces, and the lock structure includes a lock cover member provided on the peripheral edge of the lid body and a lock lever rotatably supported by the lock cover member. The member, the engaging portion capable of engaging with the engaged portion of the container body provided on the lock lever member, and the engaged portion engaged with the engaged portion are held in a locked state. Equipped with an urging part to urge
The urging portion is formed so as to extend inward substantially diagonally upward from the engaging portion .
The lock lever member has a stop portion that comes into contact with the lid in conjunction with the rotation of the urging portion so as not to rotate the urging portion beyond a predetermined angle.
The lock cover member is a storage container lock structure characterized by having a ridge portion that abuts on the side surface of the stop portion and guides the rotational operation of the lock lever member.

Further, in addition to the above-described configuration, the urging portion preferably has a contact surface formed so that the tip can be bent back.

Further, in addition to the above-described configuration, the bearing portion that pivotally supports the shaft portion of the lock lever member includes the first bearing portion formed near the insertion port of the lock cover member and the lower edge of the lock cover mounting portion of the lid body. It is preferable that the second bearing portion is formed in a pair.

Further, in addition to the above-described configuration, the lock cover member includes an opening and a lock lever fixing member that is slidably attached in the vertical direction in the opening.
The lock lever fixing member is inserted into a gap between a slide operating portion that slides in the vertical direction and a gap between the tip of the stop portion of the lock lever member and the side surface of the lid in the locked state of the lid. It is preferable to have an insertion portion for fixing the rotation.

According to the inventions of claims 1 to 4, a hinge mechanism is provided so that the lid of the storage container can be opened and closed with a minimum operation in order to take out the tool stored in the storage container, and the lid is provided on the lid. It is possible to provide a lock structure for a storage container that can firmly hold the locked state even when the handle is gripped, lifted and carried.

Further , according to the inventions of claims 1 to 4 , at the time of assembly at the time of manufacturing, a part of the shaft portion is made to be bearing on the first bearing portion, and then the other part of the shaft portion is bearing on the second bearing portion. By doing so, it is possible to provide a lock structure for a storage container that can be easily assembled without the need for tools or the like.

Further , according to the inventions of claims 1 to 4 , the rotation of the lock lever member is fixed so that the lock lever member does not rotate due to an impact such as dropping of the storage container and the locked state of the lid is not released. It is possible to provide a lock structure for a storage container that can be used.

It is (a) perspective view and (b) plan view which shows the whole storage container provided with the lock structure which concerns on 1st Embodiment of this invention. It is an exploded perspective view around the lock structure of FIG. It is an exploded perspective view of the lock cover member and the lock lever member in the lock structure of FIG. 1 as seen from the back side. FIG. 5 is an enlarged cross-sectional view taken along line AA of FIG. 1 (b) showing a (a) locked state and (b) unlocked state of the urging portion and the stopping portion of the lock lever member in the lock structure. It is the BB line partial enlarged sectional view of FIG. 1B which shows the structure of the bearing part in the lock structure. It is a perspective view which shows the whole storage container with the lid of FIG. 1 open. It is an exploded perspective view which shows the lock structure which has the lock lever fixing member which concerns on 2nd Embodiment of this invention. It is a partially enlarged perspective view which shows only the lock lever fixing member of FIG. It is a perspective view which shows the lock structure in the assembled state seen from the back side of FIG. It is a front view of the storage container provided with the lock structure which has a lock cover fixing member. FIG. 10 is an enlarged cross-sectional view of a portion (a) C-C line and (b) D-D line showing a rotatable state of the lock lever member in the locked state of FIG. 10 is an enlarged cross-sectional view of a portion of (a) lines C-C and (b) lines D-D showing a state in which the rotation of the lock lever member is fixed in the locked state of FIG.

(Embodiment)
The first embodiment of the present invention will be described in detail with reference to the drawings.
As shown in FIGS. 1 and 4, the lock structure of the storage container 100 is pivotally attached to the container body 10 and one side of the container body 10 so as to cover the upper end open surface 11a of the container body 10. It is a lock structure of a lid 20 and a storage container 100 provided at a side surface position of a side facing the axial attachment position of the lid 20, and the lock structure is provided on the peripheral edge of the lid 20. The lock cover member 30, the lock lever member 40 rotatably supported by the lock cover member 30, and the engaged portion 12 of the container body 10 provided on the lock lever member 40 can be engaged. It is provided with a joining portion 42 and urging portions 43, 43 for urging the engaging portion 42 and the engaged portion 12 to hold an engaged locked state.

As shown in FIG. 6, the container body 10 is formed in a box shape including a hollow storage space 11 for storing tools, small items, and the like, and an upper end open surface 11a communicating with the storage space 11, and is locked. It has an engaged portion 12 capable of engaging the engaging portion 42 of the lever member 40.

As shown in FIG. 4, the engaged portion 12 is formed from the upper end open surface 11a of the container body 10 so as to be able to engage with the upper engaging projection 42a provided on the engaging portion 42 of the lock lever member 40, which will be described later. A container body outer collar portion 12a formed in a substantially inverted U-shape in cross section that extends downward after extending in the outer peripheral direction, and a engaging portion formed so as to project downward from the lower surface of the container body outer collar portion 12a. It has a joint downward protrusion 12b. The engaged surface 12c of the engaged lower projection 12b is provided with an engaged surface 12c that inclines inward on the container body 10 side so that the locked state can be held more firmly. It is preferable to have 12b. Further, the shape of the entire engaged portion 12 is formed to be concave inward with respect to the outer peripheral surface of the container body 10 as shown in FIG. 1, and is formed along the concave vertical direction as shown in FIG. By providing the plurality of ribs 11d and 11d, it is possible to suppress elastic deformation of the engaged portion 12 against lateral shake when the handle 23 is gripped and carried, and the locked state can be further maintained. It can be strengthened.

As shown in FIG. 4, a removable inner plate 13 for sorting and storing small items and the like is provided in the storage space 11 of the container body 10, and the inner plate 13 (more specifically, the inner plate 13) is provided. Having a step portion 11c formed on an inner wall surface 11b forming a storage space 11 for placing the inner plate outer flange portion 13a) formed on the outer peripheral side surface of the container body 10 at a predetermined height. Is preferable. By providing the step portion 11c near the height of the outer flange portion 12a of the container body on the inner wall surface 11b side of the container body 10, the thickness of the engaged portion 12 can be further increased to cause shaking during carrying. It is possible to suppress elastic deformation due to the weight of the tool and the tool, and it is possible to further strengthen the holding of the locked state. The container body 10 is preferably integrally molded with a material mainly composed of a synthetic resin material such as polypropylene having high impact resistance.

As shown in FIGS. 1 and 2, the lid 20 has a handle 23 for carrying the storage container 100 and a lock cover mounting portion 21 in which a part of the peripheral edge for mounting the lock cover member 30 is formed in a concave shape. And, it is equipped with. The lower end edge of the lock cover mounting portion 21 has a second bearing portion 22 for bearing the left side surface which is a part of the shaft portion 45 of the lock lever member 40 described later.

The lock cover mounting portion 21 is located above the inner plate outer flange portion 13a in the locked state shown in FIG. 4A, and is located on the inner wall surface 11b around the upper edge of the engaged portion 12 of the container body 10. It has a plurality of ridge pieces 24, 24 formed so as to project downward so as to be in contact with each other. In the locked state, the ridge pieces 24, 24 abut the inner wall surface 11b around the upper edge of the engaged portion 12, thereby reinforcing the strength for suppressing the deformation of the engaged portion 12. It is possible. It is preferable that the lid 20 is integrally molded mainly of a synthetic resin material such as polypropylene having high impact resistance, similarly to the container body 10 described above.

Next, the lock cover member 30 and the lock lever member 40 constituting the hinge mechanism will be described in detail.

As shown in FIGS. 2 to 4, the lock cover member 30 can be mounted on the lock cover mounting portion 21 described above, covers the entire urging portions 43, 43 of the lock lever member 40, and covers the lid body. A cover portion 31 formed so as to be flush with the outer peripheral surface of 20 is provided, and an insertion port 32 for inserting and fixing the biasing portions 43, 43 is provided at the lower end of the cover portion 31. A first bearing portion 33 that supports the right side surface, which is a part of the shaft portion 45 of the lock lever member 40 described later, is provided in the vicinity of the insertion port 32.

The first bearing portion 33 bearings the right side surface which is a part of the shaft portion 45 of the lock lever member 40, and is the other of the shaft portion 45 provided at the lower end of the lock cover mounting portion 31 of the lid body 30 described above. The second bearing portion 22 that bears the left side surface, which is a portion of the above, constitutes a pair of bearing portions. With this bearing portion, the first bearing portion 33 is made to bearing the right side surface which is a part of the shaft portion 45, and then the second bearing portion 22 is made to bearing the left side surface which is another part of the shaft portion 45. By doing so, it is possible to reduce the number of fastener parts such as bearings and leaf springs, and it is possible to easily assemble the lock cover member 30 and the lock lever member 40 to the lid 30 without using tools such as a driver. It is possible.

As shown in FIG. 3, a plurality of ridges 34, 34 formed in the vertical direction on the inner surface of the lock cover member 30 so as to be able to abut on the side surfaces of the stop portions 44, 44 of the lock lever member 40, which will be described later. have. With the ridges 34, 34, the urging portions 43, 43 of the lock lever member 40 can be elastically deformed only in a certain direction, and the lock lever member 40 can be prevented from being displaced in the width direction. ..

As shown in FIGS. 2 to 4, the lock lever member 40 is an engaged portion 12 of the container body 10 and engages with the outer flange portion 12a of the container body to lock the container body in a substantially L-shaped cross section. A portion 42, urging portions 43, 43 formed by extending upward from the engaging portion 42 toward the container body 10 side and urging the lid 20 to hold the locked state, and the urging portion 43. , 43 is pivotally supported by a bearing portion including stop portions 44, 44 for preventing the 43 from rotating beyond a predetermined angle, and a first bearing portion 33 of the lid body 20 second bearing portion 22 and the lock cover member 30. The shaft portion 45 and the operating portion 41 that releases the locked state by rotating the engaging portion 42 upward around the shaft portion 45 are integrally formed.

The engaging portion 42 has engaging upper protrusions 42a and 42a formed so as to project upward so as to be able to engage with the engaged lower protrusions 12b and 12b of the engaged portion 12 of the container body 10. is there. It is preferable that the engaging surfaces 42b and 42b of the engaging upper protrusions 42a and 42a are inclined so as to gently approach inward on the container body 10 side.

The urging portions 43, 43 are formed so as to extend diagonally upward from the upper end of the engaging portion 42 toward the inside on the lid 20 side, and have contact surfaces 43a, 43a that are curved back at the tips thereof. .. By providing a certain area for contacting the lock cover mounting portion 21 with the contact surfaces 43a and 43a, it is possible to exert an appropriate urging force capable of holding the locked state with respect to the engaging portion 42. is there.

As shown in FIGS. 2 and 3, the stop portions 44, 44 extend from the upper end of the engaging portion 42 substantially parallel to the urging portions 43, 43, and are on both sides of the urging portions 43, 43. It is arranged at a predetermined interval, is about half the length of the urging portions 43, 43, and is formed so as to have a substantially U-shaped cross section and a thickness when viewed from a plane. It is something that is. As shown in FIG. 4B, the stopping portions 44, 44 cause the stopping portions 44, 44 to form a lid when the operating portion 41 is rotated outward around the shaft portion 45 to release the locked state. In order to abut the lock cover mounting portion 21 of 20, the rotational operation of the urging portions 43, 43 is stopped at a predetermined angle, and the length is about half from the abutting surfaces 43a, 43a at the tips of the urging portions 43, 43. The urging force can be exerted by the elastic deformation up to the middle of the above, and the elastic deformation from the upper end of the engaging portion 42 to the middle can be suppressed. As a result, deterioration / damage due to elastic deformation of the urging portions 43, 43 can be reduced, and an appropriate urging force for maintaining the locked state can be exerted even if the locked state and the unlocked state are repeatedly performed. Is.

As shown in FIG. 5, the shaft portion 45 is formed in the vicinity of the upper edge of the engaging portion 42, and in the width direction, has a substantially circular cross-sectional shape at least at both ends of the lock lever member 40 and in the vicinity of the stop portions 44, 44. It is preferably formed in.

The operating portion 41 has a concave finger hook 41a near the lower end edge of the engaging portion 40 in order to rotate the engaging portion 42 of the lock lever member 40 outward around the shaft portion 45 to release the locked state. It is what you are doing.

Next, as a second embodiment, in order to fix the rotation of the lock lever member 40 so that the lock lever member 40 does not rotate due to an impact such as dropping the storage container 100 and the locked state of the lid 20 is not released. The lock structure of the storage container 100 having the lock lever fixing member 50 attached to the opening 35 formed near the center of the lock cover member 30 will be described in detail with reference to FIG. 7-9. A detailed description of the configuration similar to that of the first embodiment described above and reference numerals in FIGS. 7-12 will be omitted.

As shown in FIGS. 7, 8 and 9, the lock lever fixing member 50 is slidably attached in the vertical direction to the inner surface side of the opening 35 formed near the center of the lock cover member 30, and is a lock lever. A slide operation unit 51 that slides the lock lever fixing member 50 in the vertical direction so as to fix the rotation of the member 40, and whether or not the rotation of the lock lever member 40 is fixed to the slide operation unit 51 is displayed. Difference in fixing the rotation of the lock lever member 40 by inserting it into the gap S between the tip of the stop portions 44, 44 of the lock lever member 40 and the side surface of the lid 20 in the locked state of the display portion 52 and the lid body 20. It has recesses 53 and 53, and a guide portion 56 that guides the sliding operation of the lock lever fixing member 50 in the vertical direction.

When the slide operation portion 51 is formed in a substantially flat plate shape and slides until it comes into contact with the wide knob portion 51a protruding from the surface exposed on the opening 35 side and the inner surface of the lock cover member 30 at both left and right ends. It has a guide portion 56 having a curved cross-sectional shape near the upper portion so as not to damage the inner surface of the lock cover member 30 even if it comes into contact with the lock cover member 30. Further, it is preferable to have a groove 55 in the vertical direction on the back surface side of the slide operation portion 51 so as not to interfere with the rotational operation of the urging portion 43 of the lock lever member 40.

The display unit 52 has a character string "LOCK" indicating a state in which the rotation of the lock lever member 40 is fixed on the surface side of the operation unit 51, and a state in which the lock lever member 40 is rotatable and not fixed. The character string "FREE" is engraved in two upper and lower rows.

The insertion portion 53 projects in the left-right direction from both ends of the operation portion 51 so as to abut on both the tips of the stop portions 44, 44 of the lock lever member 40 and the side surface on the lid 20 side, and fills the gap S. Therefore, it is formed in a square columnar shape having a substantially trapezoidal cross section whose width narrows downward.

The engaging convex portion 54 engages with the substantially semicircular concave portions 36, 36 formed in the vicinity of the left and right side edges of the lid 20 side in the opening 35, so that the left and right ends of the operating portion 51 are engaged. It is formed so as to project in the front direction in a substantially semicircular cross section.

Next, the operation of the lock lever fixing member described above will be described in detail with reference to FIGS. 10-12.

In the state in which the lock lever member 40 is rotatable and not fixed, as shown in FIG. 11, there is a gap S in which the stop portion 44 of the lock cover member 40 and the side surface of the lid 20 are separated from each other. At this time, by engaging the engaging convex portion 54 with the upper concave portion 36, the lock lever member 40 can be held in a rotatable state without being fixed, and the display portion 52 has a character string on the upper stage. “LOCK” is hidden by the lock cover member 30, and only the character string “FREE” in the lower row can be displayed in the opening 35 (see FIGS. 8 and 9).

When the rotation of the lock lever member 40 is not fixed, as shown in FIG. 12, the insertion portion 53 of the lock lever member 40 is moved downward by pinching the knob portion 51a of the slide operation portion 51 and sliding it downward. By being inserted between the stop portion 44 and the side surface of the lid 20, the lock lever member 40 is fixed by eliminating the rotatable gap S (see FIG. 11). At this time, the engaging convex portion 54 can hold the state in which the lock lever member 40 is fixed by engaging with the lower concave portion 36, and the display portion 52 is locked by the character string "FREE" in the lower row. It is hidden behind the cover member 30 and only the character string "LOCK" in the upper row can be displayed in the opening 35 (see FIGS. 8 and 9).

Although preferred embodiments of the present invention have been illustrated in the above embodiments, the present invention is not limited to the above embodiments, and improvements and changes can be made within the scope of the claims. For example, it is possible to change so that a plurality of lock structures are provided on the lid of the storage container.

100 ... storage container, 10 ... container body, 11 ... storage space, 11a ... upper end open surface, 11b ... inner wall surface, 11c ... stepped part, 11d ... rib, 12 ... engaged part, 12a ... container body outer flange part, 12b ... engaged protrusion, 12c ... engaged surface, 13 ... middle plate, 13a ... middle plate outer flange, 20 ... lid, 21 ... lock cover mounting part, 22 ... second bearing, 23 ... handle, 24 ... projecting piece, 30 ... lock cover member, 31 ... cover part, 32 ... outlet, 33 ... first bearing part, 34 ... ridge part, 35 ... opening, 36 ... recess, 40 ... lock lever member, 41 ... operation part, 42 ... engagement part, 42a ... engagement upper protrusion, 42b ... engagement surface, 43 ... urging part, 43a ... contact surface, 44 ... stop part, 45 ... shaft part, 50 ... lock lever Fixing member, 51 ... Slide operation part, 51a ... Knob part, 52 ... Display part, 53 ... Insert part, 54 ... Engagement convex part, 55 ... Groove, 56 ... Guide part,
S ... Gap.

Claims (4)

A container body, a lid body that is openably and closably attached to one side of the container body so as to cover the upper end open surface of the container body, and a storage container provided on a side surface facing the shaft attachment position of the lid body. The lock structure is provided on the lock cover member provided on the peripheral edge of the lid, the lock lever member rotatably supported by the lock cover member, and the lock lever member. An engaging portion that can engage with the engaged portion of the container body, and an urging portion that urges the engaged portion to hold the engaged and locked state of the engaged portion. Prepare,
The urging portion is formed so as to extend inward substantially diagonally upward from the engaging portion .
The lock lever member has a stop portion that comes into contact with the lid in conjunction with the rotation of the urging portion so as not to rotate the urging portion beyond a predetermined angle.
The lock structure of a storage container, characterized in that the lock cover member has a ridge portion that abuts on a side surface of the stop portion and guides the rotational operation of the lock lever member. Urging unit, locking structure of the container according to claim 1, characterized in that it has an abutment surface which tip is formed so as obtain Sorikae. The bearings that pivotally support the shaft of the lock lever member are the first bearing formed near the insertion port of the lock cover member and the second bearing formed on the lower edge of the lock cover mounting portion of the lid. The lock structure of the storage container according to claim 1 , wherein the storage container is composed of a pair of and. The lock cover member includes an opening and a lock lever fixing member that is slidably attached in the vertical direction in the opening.
The lock lever fixing member is inserted into a gap between a slide operating portion that slides in the vertical direction and a gap between the tip of the stop portion of the lock lever member and the side surface of the lid in the locked state of the lid. locking structure of the container according to claim 1, wherein a, a plug portion for fixing the rotation.

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