JPH0326129Y2 - - Google Patents

Description

[Detailed description of the invention] Purpose of the invention (industrial application field) This invention is placed on the top surface of a container for transportation and storage, is clamped and fixed together with the storage container, and the inner volume of the container is reduced. It concerns an annular mouth frame that increases

(Prior art) Conventionally, this type of opening frame for increasing volume has been formed integrally with a synthetic resin into an annular shape, or a member formed into a plate shape has been fixed using a connecting member to form an annular shape. What I did was hot.

(Problems to be Solved by the Invention) However, in the conventional spout frames that are integrally formed, storage space is bulky when not in use, and when a large frame is integrally molded, deformation due to distortion or shrinkage occurs. However, in the case where plate-like members are attached by connecting members, there is a problem that the number of members increases and it is troublesome to attach and detach them.

Structure of the invention (means for solving the problem) In order to solve the above problem, in this invention, the mouth frame is formed into an annular shape by a plurality of peripheral wall members, and a connection provided at the end of each peripheral wall member is used. A clamping member that is formed so that the parts can be fitted into and removed from each other, and has a U-shaped clamping edge that extends laterally when the mouth frame is placed on the main container, and a pin protruding from the back surface of the clamping edge. Accordingly, a structure is adopted in which the mouth frame and the main container are removably clamped and fixed.

(Function) The opening frame of this invention is formed into an annular shape by fitting together the connecting parts provided at the ends of each peripheral wall member, and the opening frame is placed on the upper surface of the main container, and the opening frame is placed on the top surface of the main container, and By clamping and fixing them to each other, the internal volume of the main container is increased. When the mouth frame is no longer used, it is removed from the main container, unfitted, and stored as an individual peripheral wall member.

(Embodiment) An embodiment embodying this invention will be described below with reference to FIGS. 1 to 4.

Reference numeral 1 denotes a main body container in the shape of a square box having an opening 1a at the top, and an upper flange 2 protruding from the upper end of the container along the outer periphery and perpendicular to the side wall. Reference numeral 3 denotes a mouth frame formed into a square annular shape corresponding to the upper flange 2, and is formed from two sets of circumferential wall members 3a and 3b facing each other.

The one peripheral wall member 3a has a support wall 4 whose length is the same as the inner diameter in the longitudinal direction of the main container 1.
, an upper wall 5 and a lower wall 6 formed to protrude from both upper and lower ends of the support wall 4 corresponding to the upper flange 2 of the main container 1, and a side wall 7 that is connected to the support wall 4, the upper wall 5, and the lower wall 6. It is formed from. 8a, 8b
As shown in FIG. 3, these are fitting convex portions having a planar T-shape and serving as connecting portions protruding from the upper and lower ends of both side walls 7 of the peripheral wall member 3a.

The other peripheral wall member 3b includes a support wall 9 and a support wall 9.
It is formed of an upper wall 10 and a lower wall 11 that are formed to protrude from both upper and lower ends of the main container 1 in correspondence with the upper flange 2 of the main container 1, and the length of the peripheral wall member 3b is the same as the shorter length of the main container 1. is formed. 12
a and 12b are quadrangular prism-shaped convex portions provided at both outer ends of the peripheral wall member 3b, and are respectively located on the upper wall 10 and
It is connected to the lower wall 11. As shown in FIGS. 3 and 4, 13 corresponds to the fitting convex portion 8a, and is a fitting recess with a T-shaped cross section as a connecting portion provided from the upper wall 10 to the convex portion 12a. is open. 14, as shown in FIGS. 3 and 4, is an insertion opening with a square cross section provided from the support wall 9 of the peripheral wall member 3b to the protrusion 12b, and below the insertion opening 14 is a cross section as a connecting part. T-shaped fitting recesses 15 are connected.

Reference numeral 16 denotes reinforcing ribs formed protrudingly at a predetermined interval between the upper walls 5, 10 and the lower walls 6, 11 on the outside of the supporting walls 4, 9 of the peripheral wall members 3a, 3b.

Reference numerals 17 are provided at a predetermined interval on the upper walls 5 and 10 of the peripheral wall members 3a and 3b in order to place the opening frame 3 on the main container 1 and to position the opening frame 3 when stacking the opening frames 3 in multiple stages. A locking hole 18 is similarly provided in the upper flange 2 of the main container 1, and the lower surfaces of the lower walls 6, 11 of the peripheral wall members 3a, 3b correspond to the locking holes 17, 18. A locking convex portion 19 is provided at.

20, 21, 22 are peripheral wall members 3a, 3, respectively.
B is a storage recess formed by cutting out the upper walls 5, 10, the lower walls 6, 11, and the upper flange 2 of the main container 1 at predetermined intervals, and in the vicinity thereof there are through holes 23,
24 and 25 are provided, respectively.

26 is a clamping member for attaching the mouth frame 3 to the main container, and the upper surface of the U-shaped clamping piece 27 extends laterally, and a pin 28 is protruded from the back surface thereof. There is.

Now, the peripheral wall member 3a configured as above,
3b to form a mouth frame, first insert the fitting convex part 8b of the peripheral wall member 3a into the insertion opening 14 of the peripheral wall member 3b, and then the fitting convex part 8a of the peripheral wall member 3a will be inserted.
is arranged above the fitting recess 13 of the peripheral wall member 3b. If you apply downward force in this state, the fitting protrusion 8
a is in the fitting recess 13, and the fitting convex part 8b is in the fitting recess 1.
5, and the peripheral wall members 3a, 3b are fixed to each other at one end. Therefore, after fitting the circumferential wall members 3a to both ends of one circumferential wall member 3b using the above-described method, the remaining circumferential wall members 3b are fitted to the ends at the same time, thereby forming the square annular mouth frame 3. .

Next, the mouth frame 3 formed in a square ring shape is attached to the main container 1.
To attach the opening frame 3 to the upper flange 2 of the main container 1, the lower wall 6, 1 of the opening frame 3 is inserted into the locking hole 18 provided in the upper flange 2 of the main container 1.
A locking convex portion 19 provided on the lower surface of the container 1 engages with the opening frame 3, and the mouth frame 3 and the main container 1 are positioned. Next, the pin 28 of the clamping member 26 is inserted from the insertion hole 24 of the lower walls 6, 11 of the mouth frame 3 toward the insertion hole 25 of the upper flange 2 of the main container 1, and the clamping member is inserted around the pin 28. 26 toward the main container, the lower walls 6, 1 of the opening frame 3 are held between the U-shaped upper and lower clamping pieces 27.
1 and the upper flange 2 of the main container 1 are connected to the clamping piece 27
Due to the elasticity between them, they are tightly clamped and fixed. At this time, the clamping member 26 is accommodated in the storage recesses 21 and 22 provided in the lower walls 6 and 11 of the mouth frame 3 and the upper flange 2 of the main container 1, and does not protrude outward.
When stacking the mouth frames 3 in multiple stages, the same procedure may be followed for the mouth frames 3.

When the opening frame 3 is no longer needed, remove the opening frame 3 from the main container 1 in the reverse order as described above, pull up the peripheral wall member 3a above the peripheral wall member 3b, and then separate them from each other to separate them. It can be separated into two peripheral wall members.

In addition, in this embodiment, the fitting convex portions 8a,
8b, by providing two fitting recesses 13 and 15 each, and providing the insertion opening 14, the peripheral wall members 3a and 3b
It has the advantage that it will not fall off naturally when it is fitted. Moreover, the upper walls 5, 1 of the peripheral wall members 3a, 3b
0 and a locking hole 1 in the upper flange 2 of the main container 1
7, 18 are provided, and the lower wall 6, of the peripheral wall members 3a, 3b is provided.
By providing the locking convex portion 19 on 11, the mouth frame 3
This has the advantage that not only can the main containers 1 or the mouth frames 3 be positioned relative to each other when stacked in multiple stages, but also horizontal displacement can be prevented.

Note that this invention is not limited to the above-mentioned embodiment, and for example, as shown in FIG.
9. The number of fitting recesses 30 may be one each, a fitting protrusion may be provided at one end of the peripheral wall member, and a fitting recess may be provided at the other end, or the mouth frame may be made into a polygonal ring shape to match the main container instead of a square ring shape. It is also possible to arbitrarily change the shape, structure, etc. of each part without departing from the spirit of this invention.

Effects of the invention In this invention, since the annular mouth frame is removably clamped onto the container body using a clamping member, the two are firmly integrated in the attached state, and removal is extremely easy. Furthermore, since the annular mouth frame is formed by removably fitting and fixing each other with a connecting part provided at the end of a plurality of peripheral wall members, it is easy to attach and detach, and it is not bulky when not in use, and there are no unnecessary parts. Therefore, it has the excellent effect of being easy to store and manage. Further, according to the embodiment of the present application, since the opposing peripheral wall members are molded in the same shape, they can be manufactured using two types of molds.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an embodiment embodying this invention, Fig. 2 is a side view thereof, Fig. 3 is an exploded perspective view for explaining the fitted state, and Fig. 4 is the same as Fig. 3. FIG. 5 is an exploded perspective view showing another example of this invention. Main body container 1, mouth frame 3, peripheral wall members 3a, 3b, fitting protrusions 8a, 8b as connecting parts, fitting recesses 13, 15 as connecting parts.

Claims (1)

[Claims for Utility Model Registration] 1. In the annular opening frame for increasing internal volume placed on the upper flange 2 of the main container 1, the opening frame 3 is formed into an annular shape by a plurality of peripheral wall members 3a and 3b, and each peripheral wall Connecting parts 8a, 8b, 13, 15 provided at the ends of members 3a, 3b are formed so that they can be fitted into and removed from each other, and when the opening frame 3 is placed on the main container 1, a U-shaped clamping edge is formed. 27 to the side,
A mouth frame for increasing the internal volume of a container, characterized in that the mouth frame 3 and the main container 1 are removably clamped and fixed by a clamping member 26 having a pin 28 protruding from the back surface thereof. 2 The connecting portions 8a, 8b, 13, 15 are fitted with a fitting convex portion 8 provided at the end of one peripheral wall member 3a.
a, 8b and fitting recesses 13, 15 provided at the ends of the other peripheral wall member 3b. 3 The fitting protrusions 8a and 8b protrude from the upper and lower ends at both ends of one peripheral wall member 3a and have a T-shaped cross section, while the fitting recesses 13,
Reference numeral 15 is a container according to claim 2, which is provided at the end of the inner wall 9 of the other peripheral wall member 3b, corresponding to the fitting convex portions 8a and 8b, and has a T-shaped cross section. Mouth frame for increasing internal volume.