JPH062902Y2 - Locking device for lids in folding containers - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a locking device for a lid in a folding container as a so-called returnable box used when transporting and carrying various products.

[Prior Art] Conventionally, as a collapsible container, it is used as a public container.
As shown in Japanese Patent Publication No. 350-350, between an upper frame and a bottom frame, upper and lower portions are rotatably supported, respectively, and a first side plate foldably supported at an intermediate portion is provided between the first side plate. A side plate foldable container which is located and has a second side plate whose upper and lower parts are rotatably supported by the upper frame and the bottom frame, and the lower part is rotatable on the bottom frame previously filed by the applicant. A first side plate that is supported by the upper frame and has an engaging portion that engages with the upper frame in the upper part, and is located between the first side plates, the upper part is rotatably supported by the upper frame, and the lower part is in the bottom frame. Second having an engaging portion for engaging
A container consisting of a side plate (Shinkai 61-129)
No. 726) or a first side plate that is rotatably supported by the bottom frame, has both ends slidably supported by the upper frame, and has an engaging portion that is engageable with the upper frame at the upper portion,
A container of a type formed between the first side plates and rotatably supported by the bottom frame and having an upper portion having an engaging portion capable of engaging with the upper frame (Japanese Utility Model Application No. 62- No. 113454) is known. In any of the above-mentioned containers, a lid is attached to cover at least the upper end opening of the container at the time of assembly to prevent the contained product from jumping out and dust from adhering.

[Problems to be Solved by the Invention] However, the lid attached to the container described above covers the upper end opening by locking its side edge to the upper frame or the like, and in order to maintain the attached state, For example, a fastening band had to be attached. When this fastening band is used, the band has to be rotated along the outer surface of the container so that the lid cannot be removed, and there is a problem that it takes a long time to fix the lid.

[Object of the Invention] In view of the above-mentioned conventional drawbacks, an object of the present invention is to efficiently cover the upper end opening and maintain the attached state when folding or assembling, thereby improving the workability of accommodation. An object of the present invention is to provide a locking device for a lid of a folding container that can be used.

[Means for Solving the Problems] Therefore, according to claim 1, the intermediate portion is rotatably connected to one of the opposing side edges of the upper frame and the bottom frame, and the upper and lower portions are rotatably supported. A pair of first side plates and a first side plate located between the first side plates, the upper part or the lower part being rotatably supported by either the upper frame or the bottom frame, and the opposite side being engageable with the opposing frame. A folding container including two side plates and a lid that is fitted to the upper frame and covers the upper surface opening. The lid can be locked with a locked portion provided at a tip portion of the frame of the upper frame. A pair of locking members having a locking portion and an operating portion at the base end are separated from each other in a direction toward and away from the frame portion of the upper frame corresponding to the first or second side plate. Support the movable member in the same direction and lock the holding member to the upper frame. It is characterized in that the locking portion is provided so as to be moved between the operating portions of the locking members which are moved so as to be locked and are separated from each other, so as to restrict the mutual movement of the locking members.

According to a second aspect of the present invention, an upper part or a lower part is rotatably supported on one side edge of one of the upper frame and the bottom frame facing each other, and the other is a pair of first and second frames engageable with the corresponding bottom frame or the upper frame. The first side plate is located between the first side plate and is rotatably supported with respect to the upper frame or the bottom frame such that the upper part or the lower part is staggered with respect to the first side plate, and the other is the corresponding bottom frame or the upper frame. A folding container comprising a pair of second side plates engageable with a frame and a lid fitted to the upper frame to cover the upper surface opening, wherein the lid has a tip portion provided at a frame portion of the upper frame. A pair of locking members having a locked portion and a lockable portion that can be locked and an operating portion at the base end, and a frame portion of the upper frame corresponding to the first or second side plate. Direction close to each other and separation And the holding member is moved to the locked portion of the upper frame so as to lock the locking portion, and is moved between the operating portions of the locking members separated from each other to lock the locking member. It is characterized in that it is provided so as to restrict the movement of the members.

According to a third aspect of the present invention, the lower portion is rotatably supported by the opposite side edges of the bottom frame, both end portions are slidably engaged with the corner portions of the upper frame, and the upper portion is engaged with the upper frame. A possible first side plate, a second side plate whose lower part is rotatably supported by the other opposite side edge of the bottom frame located between the first side plates and whose upper part is engageable with the upper frame, and an upper frame A folding container that is fitted to the lid and covers a top opening, the lid having a locked portion provided at a frame portion of the upper frame and a lockable portion at a tip portion of the lid. And a pair of locking members each having an operation portion at the base end thereof are movably supported in a direction in which they approach each other and a direction in which they separate from the frame portion of the upper frame corresponding to the first or second side plate. At the same time, the holding member is moved so that the locking part locks with the locked part of the upper frame. Each other are characterized in that provided to restrict the movement of the locking member each other to move between the operating portion of the spaced locking members.

[Advantage of Invention] According to claim 1, after the upper frame is lifted from the bottom frame to erect the first side plate, the upper part of the second side plate which is erected from the bottom frame is engaged with the upper frame to form a box shape. Assembled in a container.

And after fitting the lid to the upper frame of the container,
When the locking members are moved in a direction in which they are separated from each other, the locking portion of the locking member is locked to the locked portion. In this state, when the holding member is moved between the operating portions of the locking members that are separated from each other, the holding member regulates the return of the locking member and the locking portion is unlocked from the locked member. Are prevented.

According to a second aspect of the present invention, the first side plate is erected from the bottom frame so that its upper portion engages with the opposing upper frame, and the second side plate hangs from the upper frame so that its lower portion engages with the bottom frame. Assembled into a shape container.

And after fitting the lid to the upper frame of the container,
When the locking members are moved in a direction in which they are separated from each other, the locking portion of the locking member is locked to the locked portion. In this state, when the holding member is moved between the operating portions of the locking members that are separated from each other, the holding member regulates the return of the locking member and the locking portion is unlocked from the locked member. Are prevented.

According to a third aspect of the present invention, after the first side plate is erected with respect to the bottom frame, the upper frame is lifted by engaging the both ends of the first side plate with the corners of the upper frame to raise the upper part of the first side plate. Engage with the frame. Further, in the above state, the second side plate is erected from the bottom frame and the upper part thereof is engaged with the upper frame to assemble into a box-shaped container.

And after fitting the lid to the upper frame of the container,
When the locking members are moved in a direction in which they are separated from each other, the locking portion of the locking member is locked to the locked portion. In this state, when the holding member is moved between the operating portions of the locking members that are separated from each other, the holding member regulates the return of the locking member and the locking portion is unlocked from the locked member. Are prevented.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

Claim 3 FIG. 1 is an exploded perspective view of the folding container, FIG. 2 is a perspective view of the folding container assembled and fitted with a lid, and FIG. 3 is a schematic view corresponding to line AA in FIG. FIG. 4 is a schematic vertical sectional view corresponding to line BB of FIG. 2, FIG. 5 is a vertical sectional view of line CC of FIG. 1, and FIG. 6 is D- of FIG. FIG. 7 is a cross-sectional view taken along the line D, and FIG. 7 is a partially cutaway perspective view showing a state where the locking member is attached to the lid.
And an upper frame 5, a long side plate 7 that constitutes a pair of opposing first side plates, a short side plate 9 that constitutes a pair of opposing second side plates, and a lid 10.

The bottom frame 3 is made of synthetic resin and is formed into a rectangular frame shape having an opening at the center, and a resin corrugated board 11 is fixed to the opening by resin rivets or ultrasonic welding. The long frame portion 3b of the bottom frame 3 is integrally formed with a plurality of first shaft support portions 13 protruding inward with a required width and having a shaft support hole (not shown) at the center. A plurality of second shaft supporting portions 15 projecting inward with a required width in the short frame portion 3c of the bottom frame 3 and having shaft supporting holes (not shown) at the center are located below the first shaft supporting portion 13. Is integrally molded into.

The upper frame 5 is made of synthetic resin and formed into a rectangular frame shape corresponding to the bottom frame 3. An engaging portion 17 is integrally formed on the inner surface of the long frame portion 5a of the upper frame 5. On the inner surface of the short frame portion 5b of the upper frame 5, flanges 19 projecting inward with a required width are integrally formed, and at both ends of the flange 19, first cutout portions having a width corresponding to the thickness of the long side plate 7 are formed. 21 are formed respectively, and the long side plate 7 is supported by the first cutout portion 21 so as to be vertically slidable. A second cutout 23 is formed on the flange 19 located between the first cutouts 21, and a protrusion 37 described later is engaged with the second cutout 23. An engagement piece 25 is integrally formed in the second cutout portion 23. The first frame 5a of the frame 5 has two first locking holes 5 which form a locked part.
c are formed at required intervals in the longitudinal direction.

A lower end portion of the long side plate 7 is supported by the first shaft support portion 13 so as to be capable of standing and rotating upward from the inside. The long side plate 7 has a frame plate 7a made of synthetic resin and a resin corrugated board plate 27 attached thereto. Further, projections 16 having a required height are formed integrally in the vertical direction on the inner surfaces of both side ends of the frame plate 7a. Grooves 29 that extend in the vertical direction and are engageable with the engaging portions 17 are formed on the outer surface of the frame plate 7a corresponding to the engaging portions 17, and the frame plates 7a corresponding to the upper portions of the groove portions 29 are formed. An engaging claw portion 29a is formed on the. The frame plate 7
A notch 31 for axial support is formed at the lower end of a corresponding to each first shaft support 13, and the frame plates 7 located on both sides of the notch 31 are formed.
A shaft support hole (not shown) is formed in the lower end portion of a. Then, the shaft pin 3 made of synthetic resin that is elastically deformable in the shaft supporting hole corresponding to the notch 31 and the shaft supporting hole of the first shaft supporting portion 13.
The long side plate 7 is rotatably supported from the inner side to the upper side by the insertion of the plate 3. A plurality of support protrusions 7d facing each other with a predetermined gap are integrally formed on the upper and lower inner surfaces of the frame plate 7a,
A partition plate (not shown) is attached to the support protrusion 7d. Further, a rib 7e is integrally formed on the upper end of the frame plate 7a with a required length in the longitudinal direction, and two second locking holes 7f forming a locked portion are formed on both sides of the rib 7e. The first lock hole 5
It is formed corresponding to c.

A lower end portion of the short side plate 9 is supported by the second pivot portion 15 of the bottom frame 3 so as to be capable of standing upright from the inside. The short side plate 9 has a frame plate 9a to which a resin corrugated board plate 35 is attached. Further, on both side end surfaces of the frame plate 9a, projections 18 having a desired height are integrally formed outward in the vertical direction, and when the short side plate 9 is erected and rotated, the projections of the long side plate 7 which are erected. 16 is configured to engage. Protrusions 37 are integrally formed on both upper sides of the frame plate 9a so as to be able to engage with the second notches 23, and notches 37a to be fitted into the flanges 19 are formed on both lower ends of the protrusions 37. There is. An engaging hole 39 is formed in the projecting body 37, and the engaging piece 25 is inserted into the engaging hole 39. A notch 41 for shaft support is formed at the lower end of the frame plate 9a corresponding to the second shaft support 15, and a shaft support hole (not shown) is formed in the frame plate 9a corresponding to both sides of the notch 41. Has been formed. Then, by inserting the elastically deformable synthetic resin shaft pin 43 into the shaft support hole corresponding to the notch 41 and the shaft support hole of the second shaft support part 15, the short side plate 9 can be rotated on the second shaft support part 15. Supported.

The lid 10 is made of synthetic resin and has a size that can be fitted into the upper outer surface of the upper frame 5, and a resin corrugated board 53 is attached to a frame plate 51 having an opening in the center. A hanging portion 51a that hangs along the outer surface of the upper frame 5 is provided on the outer edge of the frame plate 51, and a protrusion that engages with a recess formed on the bottom surface of the bottom frame 3 of the container 1 that is stacked on the upper surface. 51b is integrally formed. A first hanging wall 51c is integrally formed on the bottom surface of the frame plate 51 so as to hang along the inner side surfaces of the standing long side plate 7 and the short side plate 9, and the first hanging wall 51c corresponding to the short side plate 9 therein. Is brought into contact with the inner surface of the protrusion 37. As a result, when the lid 10 is attached to the assembled container 1, the engaged state of the upper portions of the long side plate 7 and the short side plate 9 with the upper frame 5 is maintained. The first
On the bottom surface of the frame plate 51 corresponding to the inside of the hanging wall 51c, a second hanging wall 51d having a substantially work shape is provided.
On the other hand, they are integrally formed at intervals according to the movement stroke of the locking member 55 described later. And the frame 5
First and second recesses 51e and 51f are formed in the center of the first recess 51e, and the first and second hanging walls 5 are formed in the first recess 51e.
An opening (not shown) communicating with 1c and 51d is formed. The locking member 55 moves toward each long frame portion 5a of the upper frame 5 and each rib 7e of the long side plate 7 in the space reaching the first and second hanging walls 51c and 51d and the first recess 51e. Supported as possible. The locking member 55 is pushed toward the long frame portions 5a of the upper frame 5 and the ribs 7e of the long side plate 7 by a holding member 56 attached to the lower ends of the long frame portions of the first and second hanging walls 51c and 51d. It is supported in a state that it is movable and is prevented from slipping out in the vertical direction. The lock member 55 is composed of a lock portion 55a inserted into the first and second lock holes 5c and 7f, and an operation portion 55b located in the first recess 51e. Two engaging protrusions 57 higher than the operating portion 55b are provided at the center of the recess 51e.
And a through hole 57a is formed in the upper part of the engaging projection 57. In addition, the abutting plate 5 that constitutes a holding member is provided in the second recess 51f that is deviated from the movement locus of the operation portion 55b.
9 is rotatably supported about a shaft 58, and a corresponding contact plate 59
An engaging hole 59a is formed in the corresponding portion of the engaging protrusion 57. When the locking member 55 is moved to the long frame portion 5a of the upper frame 5 and the long side plate 7 side, and then the contact plate 59 is rotated to the first recess 51e side, the engagement is performed. The engagement protrusion 57a is inserted into the hole 59a, and the operation portions 55b are brought into contact with both side surfaces of the contact plate 59 to restrict the movement of the locking member 55. As a result, the locked state of the lock portion 55a with respect to the first and second lock holes 5c and 7f is maintained.

Next, the operation of the folding container 1 configured as described above will be described with reference to FIGS. 3 to 12.

First, the assembling method of the folding container 1 will be explained.
Fig. 4, Fig. 8, Fig. 8 showing a folded state, Fig. 8 showing a longitudinal sectional view taken along line EE of Fig. 8, Fig. 10 showing a longitudinal sectional view taken along line FF of Fig. 8 and assembly. In FIG. 11 showing the state in the middle and FIG. 12 showing the movement restricting state of the locking member 55, each long side plate 7 is erected upward from the inner side about the shaft pin 33 in the folded state shown in FIG. After being moved and lifted so as to face each other, each engaging portion 17 is engaged with the groove portion 29. When the upper frame 5 is lifted upward while both ends of the long side plate 7 are supported and guided by the first cutout portion 21 in the above state, the engaging portion 17 and the engaging claw portion 29a of the groove portion 29 are engaged. . At this time, during the lifting, the long side plate 7
When both ends of the long side plate 7 are slidably supported by the first cutout portion 21 and are lifted upward, the long side plate 7 and the upper frame 5 are engaged by the engagement portion 17 and the engagement claw portion 29a.
Are restricted from getting out.

Next, the short side plates 9 located between the long side plates 7 in the above state.
When is erected from the inner side to the upper side about the shaft pin 43, the protrusion 37 is engaged with the second cutout portion 23. At this time, since the notch 37a of the projection 37 is engaged with the flange 19 and the engaging piece 25 is inserted into the engaging hole 39, the standing state of the short side plate 9 is maintained. Further, when the short side plate 9 is erected, the protrusions 18 formed on both end surfaces of the short side plate 9 are engaged with the protrusions 16 formed on the inner surfaces of both end portions of the erected long side plate 7. The assembled state of the container 1 is maintained and the gap formed between the long side plate 7 and the short side plate 9 is closed, and dust and the like are prevented from entering through the gap.

When the lid 10 is attached in a state in which the operation portions 55b of the locking member 55 are moved in the directions in which they approach each other with respect to the upper opening of the container 1 assembled as described above, the lid 10 is hung on the outer surface of the upper frame 5. 51a, and the first hanging wall 51c is located on the inner surface of the long side plate 7 and the short side plate 9. At this time, the long side plate 7 may be folded by the first hanging wall 51c located on the inner surface of the long side plate 7, and the first hanging wall 51c located on the inner surface of the short side plate 9 may be formed on the inner surface of the protrusion 37. When the short side plate 9 is folded, the short side plate 9 is prevented from being folded.

When the operation portion 55b of the lock member 55 is operated to move to the outside of the container 1 in the above state, the lock portion 5 moves to the outside.
5a is a second locking hole 7f formed in the rib 7e of the long side plate 7
And the first lock holes 5c formed in the upper frame 5, respectively. Next, when the contact plate 59 is rotated from the second recess 51f toward the first recess 51e in the above state, the first contact
As shown in FIG. 2, the engaging projection 57 is inserted into the engaging hole 59a, and the contact plate 59 is inserted between the operating portions 55b which are separated from each other. At this time, the through hole 57a of the engaging projection 57 inserted into the engaging hole 59a is located above the upper surface of the contact plate 59. By inserting a sealing member (not shown) into the through hole 57a, the contact plate 59 is prevented from being rotated toward the second recess 51f. As a result, the movement of the lock member 55 is restricted, and the locked state of the lock portion 55a with respect to the first and second lock holes 5c and 7f is maintained.

Next, the container 1 assembled as described above is folded by moving the short side plate 9, the upper frame 5 and the long side plate 7 in the direction opposite to the above-described method. Then, when the lid 10 is attached to the upper opening of the folded container 1 such that the hanging portion 51a is located on the outer surface of the upper frame 5, the upper opening is closed. Next, when the lock member 55 is moved to the outside similarly to the above-described operation, the lock portion 55b is inserted into the first lock hole 5c. The lid 10 for the container 1 folded by this
The attached state of is maintained.

In this way, in this embodiment, the lid 10 can be kept closed with respect to the upper end opening of the assembled container 1 to effectively prevent the contained product from splashing out and dust from entering. In addition, when the container 1 is folded, each member of the container 1 and the lid 10 can be integrally held, and it is possible to prevent each member from being separated during transportation.
Can be efficiently transported.

The embodiment of claim 1 shown in FIG.
Folding container 99 as shown in Japanese Patent No. 36350
Is rotatably supported at the upper and lower end portions of the opposing side plates 95 whose middle portions are foldable and which can be held in an upright state on the opposing side frames 91a and 93a of the upper frame 91 and the bottom frame 93, respectively. The upper frame 91 is composed of a swing plate 97 which is located between both ends of the side plate 95 and whose upper end or lower end is rotatably supported by either one of the upper frame 91 or the bottom frame 93. A lock hole 91b is formed in the lid 10, and the lid 10 to which the lock member 55 shown in the embodiment is attached can be attached to the upper end opening of the folding container 99. Since the detailed structure of the folding container 99 is described in Japanese Utility Model Publication No. 55-36350, its detailed description is omitted.

The embodiment of claim 2 shown in FIG.
-Fold the folding container 100 as shown in No. 11956,
The upper frame is rotatably supported at its one upper end and the lower end is located between the side plate 103 that can engage with the bottom frame 105, and the lower end is pivoted at the bottom frame 105. The upper frame 101 is supported by a swing plate 107 that can be engaged with the upper frame 101, and the upper frame 101 has a locking hole 101.
A lid 1 which is formed with a and has the locking member 55 shown in the above embodiment attached to the upper end opening of the folding container 100.
0 can be attached. Since the detailed configuration of the folding container 100 is described in Japanese Patent Application No. 60-11956, its detailed description will be omitted.

Further, in the above description, the first locking hole 5c is formed in the upper frame 5 and the second locking hole 7f is formed in the long side plate 7 so that the locking portion 55a of the locking member 55 can be inserted. It is also possible to form a locked portion on the locking portion and to lock the locked portion and the locking member.

[Advantages of the Invention] Therefore, the present invention is capable of efficiently covering the upper end opening of the folding container during assembling or assembling and maintaining the attached state thereof, thereby improving the storage workability. It is possible to provide a lid locking device in.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a folding container, FIG. 2 is a perspective view of the folding container assembled and a lid is attached, and FIG. 3 is a schematic longitudinal sectional view corresponding to line AA in FIG. 4, FIG. 4 is a schematic vertical sectional view corresponding to line BB in FIG. 2, FIG. 5 is a vertical sectional view in line CC of FIG. 1, and FIG. 6 is a sectional view in line DD of FIG. Fig. 7 is a cross-sectional view, Fig. 7 is a partially cutaway perspective view showing how the locking member is attached to the lid, Figs. 8 to 12 are explanatory views showing the action, and Figs. 13 and 14 show folding containers. It is a perspective view showing other examples. In the figure, 1.99.100 is a folding container, 3.93.1.
05 is the bottom frame, 5 ・ 91 ・ 101 is the top frame, 5
c is the first locked portion, 7 is the long side plate, 7f is the second locked portion,
9 is a short side plate, 10 is a lid, 55 is a locking member, 55a is a locking part, 55b is an operating part, 59 is a contact plate as a holding member,
95 is a side plate, 97 is a swing plate, 91a is a locking hole, 103
Is a side plate, 107 is a swing plate, and 101a is a lock hole.

Claims (3)

[Scope of utility model registration request] 1. A pair of first side plates in which an intermediate portion is rotatably connected to one of the opposite side edges of an upper frame and a bottom frame, and an upper portion and a lower portion are rotatably supported, and the first side plate. A second side plate, which is located between the side plates and whose upper or lower part is rotatably supported by either the upper frame or the bottom frame and whose opposite side is engageable with the opposing frame, and the upper frame which is fitted to the upper frame. In a folding container including a lid that covers an opening, the lid has a locked portion provided at a frame portion of the upper frame and a lockable portion at a front end portion, and a base end portion. A pair of locking members each having an operating portion are movably supported in a direction toward and away from the frame portion of the upper frame corresponding to the first or second side plate, and a holding member, The locking part is moved to lock the locked part of the upper frame A locking device for a lid, characterized in that the locking device is provided so as to move between the operating parts of the locking members that are separated from each other to regulate the movement of the locking members. 2. A pair of first and second upper and lower frames which are rotatably supported on one of the opposite side edges of the upper frame or the bottom frame and which are engageable with the corresponding bottom or upper frame. The first side plate is located between the first side plate and is rotatably supported with respect to the upper frame or the bottom frame such that the upper part or the lower part is staggered with respect to the first side plate, and the other is the corresponding bottom frame or the upper frame. A folding container comprising a pair of second side plates engageable with a frame and a lid fitted to the upper frame to cover an upper surface opening, wherein the lid has a tip portion provided on a frame portion of the upper frame. A pair of locking members having a locked portion and a lockable portion that can be locked and an operating portion at the base end, and a frame portion of the upper frame corresponding to the first or second side plate. Direction close to each other and separation And the holding member is moved to the locked portion of the upper frame so as to lock the locking portion, and is moved between the operating portions of the locking members that are separated from each other to lock the holding member. A locking device for a lid, wherein the locking device is provided so as to regulate the movement of members. 3. A bottom frame is rotatably supported at one of opposite side edges of the bottom frame, both ends of the bottom frame are slidably engaged with corner portions of the top frame, and the top part is engaged with the top frame. A possible first side plate, a second side plate whose lower part is rotatably supported by the other opposite side edge of the bottom frame located between the first side plates and whose upper part is engageable with the upper frame, and an upper frame A folding container that is fitted to a lid and covers a top opening, the lid having a locked portion provided at a frame portion of the upper frame and a lockable portion at a tip portion of the lid. And a pair of locking members each having an operation portion at the base end thereof are movably supported in a direction in which they approach each other and in a direction in which they separate from the frame portion of the upper frame corresponding to the first or second side plate. At the same time, move the holding member to the locked part of the upper frame so that the locking part locks. And a locking device for the lid, wherein the locking device is provided so as to regulate the movement of the locking members by moving between the operating parts of the locking members separated from each other.