JP3796413B2 - Handle fixing structure, and handle and handle base used therefor - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a handle fixing structure, and a handle and a handle base used therefor, and particularly suitable for attaching a separately formed handle to a blow molded plastic container body such as a plastic drum. The present invention relates to a handle fixing structure, and a handle and a handle base used therefor.
[0002]
[Prior art]
For example, a plastic drum can is used as a transport container filled with a liquid or the like. In such a container, a container main body is generally formed by blow molding, and a handle is formed separately from the container main body, and this handle is generally assembled to the container main body later.
[0003]
9 and 10 and FIGS. 11 and 12 show a conventional handle fixing structure of a plastic drum disclosed in Japanese Patent No. 2918055.
In the handle fixing structure shown in FIG. 9 and FIG. 10, the support plate 104 for attaching the handle 106 to the container body 101 is provided with a split slit 108 such as a slit, and the support plate is utilized by utilizing the elastic force of the slit 108. 104 is attached to a mushroom-shaped projecting portion 102 provided on the container main body 101, and a handle 106 is rotatably supported by a pivot pin 107 on a support base 103 projecting from the support plate 104.
[0004]
On the other hand, in the handle fixing structure shown in FIGS. 11 and 12, two split slits 108, 108 are provided at an interval on the support plate 104, and a flap 110 is formed between the split slits 108. In the handle fixing structure shown in FIG. 11 and FIG. 12, first, after the flap 110 is rotated upward, the support plate 104 is slid from below the protruding portion 102 of the container body 101 to forcibly support the support plate. The flap 110 is engaged with the protrusion 102 by fitting 104 into the protrusion 102 and then pushing back the flap 110 downward.
[0005]
[Problems to be solved by the invention]
By the way, in the handle fixing structure shown in FIGS. 9 and 10, since the split slits 108 are formed in the support plate 104, the support plate 104 itself has low rigidity, particularly when lifting heavy objects. There is a problem that the handle 104 is easily elastically deformed and the handle 106 may be dropped.
[0006]
In addition to the above problem, the handle fixing structure shown in FIGS. 11 and 12 has the following problem. That is, in the conventional example shown in FIG. 11 and FIG. 12, the operation of opening and closing the flap 110 is necessary, and the support plate 104 is fitted into the protruding portion 102 while sliding from below. The series of operations is complicated and has a problem of poor workability.
[0007]
Further, in such a handle fixing structure of the plastic drum can, the engaging portion with the container body 101 is formed to be concave from the surrounding side wall surface so that the handle 106 does not protrude from the outer dimension of the container body 101 as much as possible. However, in the case of the conventional example shown in FIGS. 11 and 12, since it is necessary to slide the support plate 104 into the undercut portion 112 of the protruding portion 12, it is difficult to fit the support plate 104. There was a problem.
[0008]
In view of such a conventional problem, the present invention does not drop the handle attached separately to the container main body from the container main body side, even when a heavy object is lifted. It is an object of the present invention to provide a handle fixing structure that can be easily fixed and has a good mounting workability, and a handle and a handle base used therefor.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a handle fixing structure for integrally attaching a handle 4 formed separately from a container main body 2 in which contents are stored to a side wall surface 6 of the container main body 2. There,
A base locking portion 12 in which at least two large-diameter portions 10 and 10 are formed vertically on a part of the outer periphery of a mushroom-shaped disk-shaped cylindrical portion 8 formed to protrude from the side wall surface 6 of the container main body 2; A handle 4 with pivot shafts 5 and 5 that is raised from the side wall surface 6 when lifting 2 and is in close contact with the side wall surface 6 at other times;
It is interposed between the base locking part 12 and the handle 4 so that the handle 4 can rotate between the base locking part 12 and the handle 4 integrally. A handle base 14 to be attached,
The handle base 14 is
A disc-like concave portion 16 fitted to the outer wall surface of the mushroom-shaped disc-shaped cylindrical portion 8 of the base locking portion 12, and a convex portion 17 protruding from the disc-shaped concave portion 16;
The convex portion 17 is formed with a pair of guide holes 18, 18 that rotatably support the pivot shafts 5, 5 of the handle 4, and a back-side opening end surface of the disc-shaped concave portion 16. Are formed with inner flanges 20, 20 that can be engaged with or detached from the large-diameter portions 10, 10 of the base locking portion 12 .
A handle unit 30 is configured by rotatably mounting the rotation shafts 5, 5 of the handle 4 in the guide holes 18, 18 of the handle base 14, and the handle unit 30 is attached to the container body 2. In attaching to the base locking part 12 integrally,
After the inner flanges 20, 20 of the handle base 14 are brought into contact with the outer surface of the mushroom-shaped disc-shaped cylindrical portion 8 of the base locking portion 12, the inner flange is rotated by approximately 90 °. 20, 20 are engaged with the large diameter portions 10, 10, whereby the handle unit 30 is integrated with the side wall surface 6 of the container body 2 .
[0010]
Delete [0011]
According to the handle fixing structure having such a configuration, the handle base 14 that connects the handle 4 and the container body 2 is strong because there is no slit or the like that may cause the drop off. Since the base locking portion 12 is engaged at the upper and lower positions, there is no possibility that the handle base 14 and the handle 4 will drop off from the container body 2 when the container body 2 is lifted. The handle 4 can be attached to the handle base 14 by inserting a pair of rotating shafts 5 and 5 provided in the handle 4 into the guide hole 18 of the handle base 14, and in this case, the rotating shaft 5. and concentrically, since the handle base 1 4 engages can guide rib 26 is protruded, when lifted, the handle 4 can not be deviated from the handle base 14.
[0012]
Further, the handle according to the present invention includes a pair of inclined arm portions 24, 24 extending to the base side of the handle body 22 in which a hole 32 for inserting a finger is formed,
Rotating shafts 5, 5 projecting inward from the tip of the inclined arm portion 24,
Guide ribs 26, 26 formed concentrically with the pivot shafts 5, 5,
And a positioning step portion 27 formed on the side wall of the inclined arm portion 24.
[0013]
According to the handle having such a configuration, the handle is not inclined more than necessary due to the action of the positioning step portion 27 provided on the inclined arm portion 24 and the guide rib 27. Therefore, it is possible to more effectively prevent the handle from coming off.
Further, the handle base 14 according to the present invention includes a disk-shaped concave portion 16 and a convex portion 17 protruding from the disk-shaped concave portion 16, and a pair of guide holes 18, 18 is formed, and guide grooves 28 and 28 are formed on the sides of the guide holes 18 and 18, and at least two inner flanges 20 and 20 are formed on the opening end face on the back surface side of the disk-shaped concave portion 16. It is characterized by being.
[0014]
According to such a handle base 14, since it cannot be attached to or detached from the container body 2 unless it is rotated by 90 °, it can be used stably.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows a plastic drum having a handle attached by a handle fixing structure according to an embodiment of the present invention.
In the drum 1, the container body 2 is formed in a cylindrical shape by blow molding. A handle 4 formed separately from the container body 2 is attached to the container body 2 via a handle base 14. That is, the handle fixing structure for fixing the handle 4 includes the handle 4, the handle base 14, and the base locking portion 12 on the container body 2 side shown in FIG.
[0016]
As shown in FIG. 2, the handle 4 has a handle body 22 having an elliptical hole 32, and a pair of inclined arm portions 24, 24 extend integrally on the base side of the handle body 22. Has been. A pair of pivot shafts 5 and 5 project inward from the tip of the inclined arm portion 24, and fan-shaped guide ribs 26 and 26 are formed concentrically with the pivot shafts 5 and 5. Has been. In addition, positioning step portions 27 and 27 are formed on the base sides of the inclined arm portions 24 and 24, respectively.
[0017]
As shown in FIG. 3, the handle base 14 is formed in a substantially button shape. Further, when viewed from the back surface side, as shown in FIG. 4, a disk-shaped void 15 is formed inward. Such a handle base 14 includes a disk-shaped concave portion 16 in which the space 15 is formed, and a convex portion 17 protruding from the disk-shaped concave portion 16, and the inside of the convex portion 17 is a hollow portion. It is 19. Further, a pair of guide holes 18, 18 that accommodate the rotation shafts 5, 5 of the handle 4 and rotatably support the handle 4 are formed on a pair of opposite side wall surfaces of the convex portion 17. Each is formed. Further, tongue portions 29 and 29 having a substantially U-shaped cross section are provided on the side of the convex portion 17, so that vertical guide grooves 28 and 28 are formed on the sides of the guide holes 18 and 18. Has been.
[0018]
On the other hand, as shown in FIG. 4, inner flanges 20, 20 are formed at positions facing each other on the opening end surface of the space 15 of the disk-shaped concave portion 16. Therefore, wide portions S and narrow portions s are alternately formed along the circumferential direction on the back surface of the disk-shaped concave portion 16. Further, vertical grooves 23 and 23 are formed on the bottom surface 21 of the void 15 at a position one step lower. One end of each of the vertical grooves 23 and 23 is open to the central cavity 19. In addition, fan-shaped guide slopes 25 and 25 are formed between the longitudinal grooves 23 and 23 and the cavity 19.
[0019]
The handle 4 and the handle base 14 are formed as described above, and the handle unit 30 is formed by assembling them integrally as shown in FIG. That is, in the handle unit 30, the rotation shafts 5 and 5 of the handle 4 are mounted in the guide holes 18 and 18 of the handle base 14. At this time, the inclined arm portions 24, 24 are mounted while being expanded outward. Thus, when the rotation shafts 5 and 5 are mounted in the guide holes 18 and 18, the rotation shafts 5 and 5 become the rotation shafts, so that the handle 4 can be rotatably supported. On the other hand, as shown in FIG. 5, even if the handle 4 is assembled in the handle base 14 and then the handle 4 is erected close to 90 °, the guide ribs 26, 26 on both sides are connected to the tongue pieces 29, 26. 29, since the abutting arm portion 24 and the like cannot further expand outward, the detachment of the handle 4 is reliably prevented.
[0020]
Thus, in the present embodiment, the action of the guide ribs 26 and 26 prevents the handle 4 from coming off when the handle 4 is lifted.
Below, the structure by the side of the container main body 2 to which such a handle unit 30 is attached is demonstrated. In addition, since the two handles 4 and 4 are attached with respect to the container main body 2, the structure by the side of the container main body 2 is provided with the same structure on both sides.
[0021]
That is, as shown in FIGS. 6 and 7, since the handle unit 30 is attached to the side wall surface 6 of the container body 2, the base locking portions 12 and 12 protrude outward from the side wall surface 6 at the time of molding. Is formed. The base locking portion 12 includes a mushroom-shaped disk-shaped cylindrical portion 8 and large-diameter portions 10 and 10 disposed above and below the disk-shaped cylindrical portion 8. The periphery of the mushroom-shaped disk-shaped cylindrical portion 8 is recessed so as to form a gentle annular slope. As described above, the mushroom-shaped disk-shaped tube portion 8 is formed so as to protrude from a position that is lowered by one step, so that the disk-shaped tube portion 8 does not protrude as much as possible even when compared with the surrounding side wall surface. Yes. On the other hand, a rod-like body 42 is formed in the vertical direction on the top plate 31 of the base locking portion 12 in which the large diameter portions 10, 10 are formed. The length of the rod-shaped body 42 corresponds to the length between the longitudinal grooves 23 shown in FIG.
[0022]
The base locking portion 12 on the container body 2 side according to the present embodiment is formed as described above. Hereinafter, the operation when the handle unit 30 of FIG. 5 is assembled to the base locking portion 12 of FIG. 6 will be described. explain.
First, the rod-like body 42 of the base locking portion 12 is placed at the lowest position of the guide slopes 25, 25 formed on the back side of the handle base 14. In this state, when the handle base 14 is rotated, the guide slopes 25 and 25 pick up both ends of the rod-shaped body 42, and when the handle base 14 is further rotated, the vicinity of the rod-shaped body 42 is along the guide slope 25. After elastically deforming and rotating 90 °, in other words, when the rod-shaped body 42 gets over the highest position of the guide slope 25, the rod-shaped body 42 falls into the longitudinal grooves 23, 23 of the handle base 14, and the handle base 14 And the base locking portion 12 are engaged. Accordingly, when the handle base 14 is incorporated in the base locking portion 12 of the container body 2 and the engagement between the two is to be released, the rod-like body 42 suddenly moves to the highest position of the guide slope 25. Since it is necessary to get over, it is impossible for the handle base 14 to rotate in the reverse direction, and therefore the engagement between the two cannot be disengaged.
[0023]
Here, the positional relationship between the large-diameter portion 10 of the base locking portion 12 and the inner flange 20 of the handle base 14 will be described in detail. When the operator holds the handle 4 and lifts the container main body 2 from the state in which the handle unit 30 is assembled to the container main body 2, the largest load is generated in the vertical direction. In this embodiment, since the engagement portion between the inner flange 20 and the large diameter portion 10 is set in this portion in advance, the structure of the attachment portion is robust and the engagement of this portion is It will not come off. If there is an engaging portion between the inner flange 20 and the large-diameter portion 10 in the left and right directions, not in the vertical direction, the handle base 14 may rotate when the handle 4 is lifted. Will be easy to come off. However, in this embodiment, the handle base 14 is effectively prevented from coming off by providing the engaging portions at the upper and lower portions.
[0024]
Further, as shown by a solid line and an imaginary line in FIG. 7, when the handle unit 30 is lifted from the attached state to the use state of the handle 4, the positioning step portion 27 formed on the inclined arm portion 24 becomes the handle. Since it contacts the corner of the tongue piece 29 of the base 14, the handle 4 does not rotate any further.
As mentioned above, although one Example of this invention was described, this invention is not limited to the said Example at all. For example, in the above embodiment, the handle fixing structure in the plastic drum can has been described, but it goes without saying that this fixing structure can be diverted to other containers. Moreover, the handle 4 is not limited to two, but can be applied to a container to which one handle is attached. Moreover, in the said Example, although the rod-shaped body 42 was provided in the base latching | locking part 12 by the side of the container main body 2, this rod-shaped body 42 is not essential. Further, the inner flange 20 of the handle base 14 is not limited to two, and for example, three inner flanges 20 may be provided at intervals of 120 °. In that case, three large-diameter portions 10 on the container body 2 side may be provided correspondingly.
[0025]
【The invention's effect】
As described above, according to the handle fixing structure according to the present invention, and the handle and handle base used in the handle fixing structure, the handle formed separately from the container body is not dropped from the container body. Can be attached firmly. Moreover, since it is robust, the handle will not come off even if it is heavy. Furthermore, the container and the handle can be easily engaged.
[0026]
In addition, since the handle and the handle base can be separately molded integrally, they can be mass-produced at low cost.
[Brief description of the drawings]
FIG. 1 is a front view of a plastic drum can having a handle attached with a handle fixing structure according to an embodiment of the present invention.
FIG. 2 is a perspective view of a handle according to an embodiment of the present invention.
FIG. 3 is a perspective view of a handle base according to an embodiment of the present invention.
4 is a bottom perspective view of the handle base shown in FIG. 3. FIG.
5 is a perspective view of a handle unit in which the handle of FIG. 2 and the handle base of FIG. 3 are assembled.
FIG. 6 is a cutaway perspective view of the container body side.
FIG. 7 is a sectional view of a handle fixing structure according to the present embodiment.
FIG. 8 is a front view of a container body with a handle fixed by the handle fixing structure according to the present embodiment.
FIG. 9 is a front view of a conventional handle fixing structure.
FIG. 10 is a cross-sectional view taken along the line AB of FIG.
FIG. 11 is a front view of another conventional handle fixing structure.
12 is a cross-sectional view in the CD line direction of FIG.
[Explanation of symbols]
2 Container body 4 Handle 5 Rotating shaft 6 Side wall surface 8 Mushroom-shaped disk-shaped cylindrical portion 10 Large diameter portion 12 Base locking portion 14 Handle base 16 Disc-shaped concave portion 17 Protruding portion 18 Guide hole 20 Inner flange 22 Handle body 24 Inclined arm portion 28 Guide groove 30 Handle unit

Claims (3)

A handle fixing structure for integrally attaching a handle (4) formed separately from a container main body (2) for storing contents to a side wall surface (6) of the container main body (2),
At least two large-diameter portions (10) and (10) are formed vertically on a part of the outer periphery of a mushroom-shaped disc-shaped cylindrical portion (8) that protrudes from the side wall surface (6) of the container body (2). The base locking part (12)
A handle (4) with pivot shafts (5), (5) that is raised from the side wall surface (6) when lifting the container body (2) and is in close contact with the side wall surface (6) at other times; ,
It is interposed between the base locking portion (12) and the handle (4). The handle (4) is integrally formed between the base locking portion (12) and the handle (4). And a handle base (14) to be attached so as to be rotatable,
The handle base (14)
A disc-shaped concave portion (16) fitted to the outer wall surface of the mushroom-shaped disc-shaped cylindrical portion (8) of the base locking portion (12), and a convex protruding from the disc-shaped concave portion (16) Part (17),
The convex portion (17) is formed with a pair of guide holes (18) and (18) for rotatably supporting the rotation shafts (5) and (5) of the handle (4). An inner flange (20) that can be engaged with or detached from the large-diameter portions (10), (10) of the base locking portion (12) is provided on the opening end surface on the back surface side of the disc-shaped concave portion (16). , (20) is formed ,
The handle unit (30) is mounted by pivotally mounting the pivot shafts (5) and (5) of the handle (4) in the guide holes (18) and (18) of the handle base (14). In constructing and attaching the handle unit (30) integrally to the base locking portion (12) of the container body (2) ,
After the inner flanges (20), (20) of the handle base (14) are brought into contact with the outer surface of the mushroom-shaped disk-shaped cylindrical part (8) of the base locking part (12), approximately 90 ° By rotating, the inner flanges (20), (20) are engaged with the large diameter portions (10), (10), whereby the handle unit (30) is engaged with the container body (2). The handle fixing structure is integrated with the side wall surface (6). A pair of inclined arm portions (24), (24) extending to the base side of the handle body (22) in which a hole (32) for inserting a finger is formed;
Rotating shafts (5) and (5) projecting inward from the tip of the inclined arm portion (24),
Guide ribs (26), (26) formed concentrically with the pivot shafts (5), (5), a positioning step (27) formed on the side wall of the inclined arm portion (24), A handle characterized by having.   It consists of a disc-shaped concave portion (16) and a convex portion (17) protruding from the disc-shaped concave portion (16), and a pair of guide holes (18), ( 18) is formed, and guide grooves (28), (28) are formed on the sides of the guide holes (18), (18). Further, on the opening end face on the back side of the disc-shaped recess (16), A handle base characterized in that at least two inner flanges (20), (20) are formed.

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