JPS5899341A - Paper cup - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The present invention relates to paper cups.

- Conventionally, a paper cup with a structure shown in FIG. 1(a)K has been used as a removable paper cup for drinking water, etc., or a paper cup for storing snack foods, etc. This paper cup l has a fan-shaped blank T-** attached to a cylinder and L7 to the body 2, and this! l5K2 No 111JlllIKjlU
It consists of a bottom plate 3 that can be attached. The fuselage is formed by wrapping a fan-shaped blank made of 2Fi paper and pasting the parts together. Also, the bottom plate 3 is paper ¥
As shown in Figure 1), the ring-shaped pedestal 4 is narrowed at the KM1 edge and has a circular pedestal 4 on the edge. And PI3 group &? At Kl-J, fit the bottom plate 3 to the fuselage 2 so that the base 4 opens outward, and at the same time, fold (curl) the bottom part of the fuselage 2 inward @IIC, and roll the base 4t into the base 4t with the 4-piece. And f! IlI crushed, lol
A paper cup 1 having a structure as shown in FIG. 1(a) is manufactured. Note that the paper cup 1 generally has an upper part (top) [outside mKIIk* including top curl sVt] as shown in the figure.
Care has been taken to soften the shape and the connection with the lips.

117t, water repellent f1 on the inner surface of the body 2 and bottom plate 3
It's 4k coated.

However, paper cups with this structure! , shape M of the bottom plate 3, simultaneous disc-shaped paper [because it is formed by squeezing with a press,
As shown in Figure 1), a large number of wrinkles 6 are generated on the base 4. As a result, it is easy to be uncertain whether the OIa will be attached at the fitting portion with the #l shaft 2, which may cause liquid O to leak.

In addition, this paper cup 101m board 3 has a structure in which paper is coated with resin, so it has a low mechanical strength.
The body is easily deformed when held by one person, and the appearance is not desirable.

Therefore, an object of the present invention is to provide a mechanically strong paper cup that does not cause leakage of the housing and is not deformed.
Toru.

In order to achieve such a purpose, the present invention provides a peripheral Kll
It consists of a resin bottom plate with a shaped pedestal, and a cylindrical body made of paper-based plastic resin. It is made by trapping and fixing dust, and the following is the actual Jllll? There will be three vA meetings from IK.

Fig. 2 is a lr side view showing the paper cup produced by this invention, lN311 is a perspective view of the paper cup (O perspective view, Fig. 4F;!m)
Figure 2 t) W-WfliKllu enlargement *ms*,
a).

(1)) is an enlarged cross-sectional view showing the body 08llll-made, and Figures 6-) to (0) are WI side views showing the method of manufacturing the paper cup.

As shown in Fig. II2, the paper cup l of this embodiment has a bottom plate sK having a pedestal 4 like the conventional 0 paper cup, and one end of the body 2 is attached to the bottom, and the edge of the seventh part is folded back to form the pedestal 4.
It has a structure in which it is rolled up and fixed firmly. Also, above i
#i) A whirlpool curl 5 is also provided in 11. As shown in Figure 5 (a) K, the body 2 has a coating layer 8' made of a resin such as polyethylene on the inner peripheral surface of the paper 7.
It is shaped by Plan 79, which has a power of kW. In other words, since the planter 8 is already formed into a fan shape, write both positive edges to, iiv* and partially meet the edges of both lII, as shown in #A(b). , It has been determined that a patch is attached at the Tomui section. Note that this 1S has a leakage prevention structure called a so-called skive.

This structure is as shown in Fig. 115 (-).The inner circumference of the blank 90 is cut by the amount of MW of the inner periphery of the blank 90 and the thickness t of the blank 9.
After making lI/I, it is folded back outward at the center of this folded part 12 and the overlapping p-section tube is pasted. After that, the tip part t where the coating layer 8 is exposed on the inner and outer horse surfaces and the edge is overlapped with the inner periphery of the OII end @ of the planter 9 and pasted as shown in Figure 115 ((9)). 1
By cutting off the leakage path of the liquid inside the paper cup, the structure completely prevents liquid from leaking out of the paper cup.

Further, the bottom plate 3 of this actual example M is formed of transparent resin. Furthermore, since it is made of resin, the shape can be freely selected. Therefore, in this embodiment, as shown in FIG.
In order to avoid the formation of I, the cross-sectional shape of the bottom plate 3 is made the same as the internal hollow cross section of the body 2, and the outer circumferential surface of the bottom plate 3 and the inner circumferential surface of the body 2 are perfectly aligned. .

In addition, since the bottom plate 3 is formed by resin molding using injection molding, blowing, vacuum, compressed air, etc., as shown in FIG. 4 has no wrinkles as in the conventional case, forming a smooth mating surface.

The assembly of the bottom plate 3 and the body 2 is the same as before, as shown in Figure 6 (
As shown in a) to (0), after placing the bottom plate 3 on the mold 13 in the upside-down position I, insert it into the fuselage 2 km long body 13 as shown in the figure <1)) As shown in Figure (0), fold back the mating end of the body 2 to the inner piece and meet the pedestal 4゛ with the tip of the inner piece (curl 1M), and heat the
The string cup is fixed by heat sealing using ultra-f waves or the like, and the string cup is made into a sea bream.

As shown in Figure 2, after the paper cup is transferred to the outside (not shown), a cap seal, a can seamer 2 resin molded product, etc. are attached to the paper cup. 4 Attach a meeting. Or simply use it as kelp.

Such a real M91J paper cup has the following effects.

(1) Since the bottom plate 3 is formed by resin molding, the seams are smooth and densely layered on the inner peripheral surface eζ of the body 20. The # surface shape of the moat & part of the neck and bottom plate 3 is 1114 hollow I of body 2
It is the same as the F side. Damn it, overlap the torso 2 & S
Because it uses a skive structure, there is no possibility of liquid leakage.

(2) Since the bottom plate 3 is made of resin, its mechanical strength is greater than that of conventional bottom plates mainly made of paper. Therefore, the bottom plate 3 does not simply warp inwardly or outwardly due to a slight external force, and the bottom of the paper cup 1 does not deform even when the contents are accommodated, resulting in a strong structure.

(3) Since the bottom plate 3 can be formed by resin molding, mass production is easy and inexpensive. Furthermore, since the resin is water-impermeable, it has excellent moisture resistance and eliminates the need for a conventional resin coating.

(4) Since the body of the paper cup 1 is mainly made of paper, it is easy to dispose of, and it is also easy to print, allowing for beautiful printing.

(5) If the bottom plate is 3tJ11atlK, it is convenient to check the filled contents from the outside.

(6) Since the paper cup forming Ill can be used by only partially modifying a conventional one, the equipment cost for forming the paper cup of this embodiment is low.

(7) Since the bottom plate 3Fi-shield is formed, the bottom plate structure can be provided in various shapes and structures according to needs. Regarding this point, 7FItJ (Q~
2) and 8 (a), and 2) will be used and will be explained later.

Note that the present invention is not limited to the above-mentioned historical breeding, and modifications thereof are possible based on the technical idea of the present invention.

For example, the shape of a paper cup may be square. In addition, a L11 structure with the same diameter across the upper and lower parts may be used. In addition,
Top curls are not always necessary.

In addition, the blank that forms the fuselage must be water resistant.
- You can use just paper. Alternatively, it may be a blank structure coated with a resin on a paper surface. Furthermore, 115
If the outer part t of the part with the inner II tube skive structure in FIG.

Next, Figure 7 (a) ~) and Figure 8 (a) ~
) will be explained about another paper cup according to the present invention shown in FIG. Figure IE7-) to (Figure 88(
a).

(b) M fixed by the bottom plate and the fuselage
V is shown. The former does not contain anything to store, but the latter does not have any air writing characteristics, so it can be accommodated in a casing or the like. but,
If an m-shaped object, 11-grain object, etc. are selected as the contents, it can be used as a paper cup. The ability to choose the paper cup structure as described above is due to the resin molding on the bottom plate.

7fHa), (1)), (・) indicate an example of a 15V# digit on the bottom plate 3 (accommodating recess),
(2) shows the girder with the inner IIK storage part 16 on the bottom plate 3, and (e) shows the general girder with the outer IIK storage IFIi15t on the bottom plate 3.

In the structure shown in the same figure (IL) in which the inner sK receiving part 15 is provided, the center part of the bottom plate 3 is folded downward (outward) and accommodated 1115t.
In the same a(1) structure, by providing the ring body 16 for forming the accommodation recess on the upper peripheral edge of the hawk 4[3, the housing 11
Part 15'l is formed. The former has high space utilization efficiency because it uses unused spatial sounds.

After*F! Since the dense body ring serves as a reinforcing portion, the mechanical strength f of the paper cup 1 becomes higher. t7t, in both cases, the housing 1B15 can be used as the auxiliary plate VI section by closing the housing recess 15 with the inner lid 18 with the tab 17 attached. The structure shown in the same figure (・) in which the accommodation recess 15 is provided on the outside is formed by forming the outer surface (lower surface) C11 body 19t of the bottom plate 3 and accommodating it 11150**
When forming ', 4K and -sK of this mounting body 19 are connected to form a cap 20Vr.

This cap 20 is integrally molded, and since it is made of resin, it can be elastically opened and closed many times. This structure also has high space utilization efficiency.

Further, this structure has the practical advantage of being able to open and close the inside of the container 15 without removing the main cap 14'i on the top of the paper cup 1.

Figure 7 (0), @) has a structure in which a removable area 21 is provided in the center of the bottom plate 3, respectively. 4! The p-outlet area 21 is formed by a thin inner carp 22 provided in an annular shape at the center of the bottom plate 3, and a gel tab 23 is provided on each outer m. Same figure (0) structure is pull tab 2BVt
It is a gel tab type because it is pulled and broken 11rl by the thin wall @22 and the outer area 21 is removed. The structure shown in FIG. Fold it down and make a hole in a cup of paper to make pudding, etc. 24C) 1111
This makes it easier.

Sugar 7 (O is a structure in which the inlet 261 has a cap 25 attached to the center KII shape of the bottom frame 30. The paper cup 1 with this structure has the capacity of a furikake food bag!
It's all over I. Although not shown in the drawings, there is a structure that is compatible with this structure, such as a structure that attaches a removable cap to the injection port, or a structure that uses screws. There is a structure to attach it to. In these structures, the middle yakup is a paper cup 1
It is preferable to prevent it from protruding from the lower edge of the paper bag, or from the standpoint of stability when the paper bag is placed.

FIG. 117(g) shows a paper cup 1 with improved firmness, and a long leg 271 is provided at the center of the outer surface of the bottom plate 3.

Figure 147 (B) shows a structure in which a thick ring 281 with KR is provided in the center of the bottom plate 3, and this stepped ring 1128t acts like a diaphragm to reduce the internal pressure (pressure increase) after the contents Vm are placed inside the paper cup l. ), the paper cup 1 is operated as a pressure absorbing section to prevent *St of the paper cup 1.

Part of the 1M8 diagram (a) shows a 30-piece stranded bottom plate with 29 holes installed inside, and a ζO fitting 29vc! 14 to 2O fold 9
It has a structure that allows you to examine the return part Yr moat. This structure is suitable for accommodating everything other than the casing.

In Figure g8, the connection between the bottom plate 3 and the body 2 is simply a stitched structure, similar to the above-mentioned embodiment. lJt is shown. In this structure, the fuselage 2 is 1lffl - 1 diameter from the top to the bottom.
PIVr is shown. Also, in this moth, the lower l of f&3
A protruding rod 30 is provided. Therefore, this protruding rod 30? By pushing up, the contents of the paper cup 1 can be pushed out.

Note that the shape and structure of the paper cup may be other structures.

As explained above, according to the present invention, since the bottom board is made of wood and has an annular pedestal, the bottom board can be easily formed into any shape, and the bottom #i and #1 have separate storage parts,
TI output, pull I button included.

Not only can pressure absorbing parts be installed, but they can also be installed without any liquid leakage, and are mechanically shaped!
A strong paper cup can be obtained.

[Brief explanation of drawings]

Figure 1111 (a), (tl is a cross-sectional view of a conventional paper cup and a perspective view of the bottom plate. Figure 2 is an example of the present invention.
Cross section of the paper cup by Kai, the third factor is also a perspective view of the bottom plate, Figure 4 is an enlarged sectional view along line oat-w in Figure 2, and Figures 5 (a) and (9) are also the formation of the body. The enlarged cross-sectional view of a part of the horse mackerel, FIGS. 6(a) to 6(0), is a cross-sectional view 1111 showing the state of manufacturing the paper cup. Figure 7 (IL)
-(b) are sectional views of a paper cup according to another embodiment 1PIIK of the present invention, and Figures 11Eg (a) and (1)) are sectional views of a paper cup according to another embodiment. l... paper cup, 2... body, 3... bottom plate, 4...
...Pedestal, 6...Wrinkles, 7...Paper, 8-...Coating layer, 9...Blank, to, tt...Both side edges,
13...Kinami, 14...Cap, 1t...Accommodating part, 18...Medium weight, 21...Removal and placement, 22...Thin wall melting, 23...Pull tab, 26...・・Inlet, 27・
...Legs, 28...Application annular portion, 30...Protruding rod. Agent Patent Attorney Now 6th Wit Fig. 7 Fig. 8

Claims (2)

[Claims] (1) A resin bottom plate having a pedestal with a peripheral edge VcjIl, a cylindrical body made by rolling up a paper blank, and one end of the body is connected to the bottom plate νζ.
A paper cup that fits together and is fixed by wrapping the pedestal tube of the bottom plate around the mating edge. (2) The fitting @ part of the cross-sectional shape of the bottom plate is such that a part of the edge of the blank t111 is overlapped and 7 is the same as the internal hollow cross-section of the body.Claim 1
1! Paper cup described in item 1.