JPH041932Y2 - - Google Patents

Description

[Detailed Description of the Invention] (1) Purpose of the Invention [Field of Industrial Application] The present invention relates to a disposable diaper used to absorb and absorb body excrement.

[Prior Art] Disposable diapers have conventionally been known in which the opposite side flaps are provided with elastic members for encircling the legs. Generally, the elastic members of this type of diaper used in practical use are arranged in parallel on opposite sides. However, in view of the fit of the diaper to the body, it is desirable that the spacing between the opposing elastic members be not parallel. Therefore, diapers formed in this manner are known. As an example, a side flap with an elastic member attached thereto is folded inward, its longitudinal center part is joined to the top surface of the top sheet where the absorbent core is located, and when worn, the flap spreads from the joined part towards the front and rear ends. A so-called turn-up type is in practical use.

[Problems to be Solved by the Invention] However, although the turn-up type diaper is easy to manufacture, it does not require any special measures to prevent leakage of excrement other than arranging the elastic members as described above. is not collected, and urine and fluid stools (soft stools) are particularly prone to leakage.

(2) Structure of the invention [Means for solving the problems] The invention consists of a water-permeable top sheet, a water-impermeable back sheet, an absorbent core interposed between the two sheets, and a side opposite to the core. The present invention relates to a disposable diaper including a side flap and an elastic member attached in the longitudinal direction of the side flap to form an elastic gear. In the diaper, the side flap includes a flat portion extending outward from the outer edge of the core, and a side wall portion having a tendency to stand up upward due to the contraction action of the elastic member with the flat portion as a base end. The side wall portion fixes the longitudinal end portion in a lying state with the free end of the longitudinal end portion facing inward in the rear region, thereby providing an inwardly facing pocket in the rear region. and the longitudinal end portions are fixed in a prone state with the free ends of the longitudinal end portions in the front region facing outward.

[Example] The present invention will be further explained based on the illustrated example as follows.

1 to 4, the diaper includes a water-permeable top sheet 1 and an impermeable back sheet 2.
, an absorbent core 3 , and a side flap 4 . The side flap 4 includes a flat portion 5 formed by the portions 1a and 2a of the top sheet 1 and back sheet 2 extending outward from the outer edge of the core 3, and a relatively narrow sheet 6 extending outward from the outer edge of the core 3. It consists of a breathable and waterproof side wall part 7 located on the upper surface of a flat part 5 at an appropriate distance from the side wall part 7. The side wall portion 7 is formed by joining the proximal end portion 6a of the sheet piece 6 to the upper surface of the flat portion 5, and attaching the elastic member 8 to the inner edge thereof. Therefore, the side wall portion 7 is
Due to the contraction action of the elastic member 8, the elastic member 8 has a tendency to always rise upward with the flat portion 5 as the base end.

As shown in FIG. 3, when the side wall portion 7 is in a prone state with the free end of the longitudinal end portion 6b in the rear region facing inward, the side wall portion 7 fixes the longitudinal end portion to the upper surface of the base end portion 6a. There is. The rear region thereby forms an inwardly directed pocket 9.

In FIG. 4, on the other hand, the side wall portion 7 has its longitudinal end portion 6c fixed to the upper surface of the flat portion 5 in a prone state with the free end of the longitudinal end portion 6c in the front region facing outward.

As shown in FIG. 5, the base end portion 6a of the sheet piece 6 forming the side wall portion 7 may be joined to the plane portion 5 on the opposite surface to that shown in FIGS. 3 and 4.
In this case, the longitudinal end portion 6b in the rear region is fixed to the upper surface of the base end portion 1a, and the longitudinal end portion 6c in the front region is fixed to the upper surface of the flat portion 5, respectively. Other aspects are the same as those shown in FIGS. 3 and 4.

If the back sheet 2 has air permeability, the side wall portion 7 preferably has higher air permeability than the back sheet 2. The components of the diaper, such as the top sheet 1, back sheet 2, and core 3, are not particularly limited, and those commonly used in diapers of this type can be used.

(3) Effects of the invention According to the diaper of the invention having the above-mentioned configuration, the side wall portions forming part of the side flaps have a tendency to stand up upward, and this makes it difficult for the body to move when the diaper is worn. The fit is extremely good. Moreover, more feces is excreted in the rear area than in the front area, and since the rear area has a pocket facing inward, it is able to receive feces, especially fluid stools (soft stools). These leaks can be effectively prevented.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention.
The figure is a perspective assembled view, Fig. 2 is an exploded perspective view, Fig. 3 is a cross-sectional perspective view taken along line A-A in Fig. 2, and Fig. 4 is Fig. 2 B-
A cross-sectional perspective view taken along the line B, and FIG. 5 are partial cross-sectional perspective views showing an example of joining of the proximal end portions of the side wall portions, which are different from those shown in FIGS. 3 and 4. 1...Top sheet, 2...Back sheet, 3
... Core, 4 ... Side flap, 5 ... Plane part, 7 ... Side wall part, 8 ... Elastic member, 9 ... Pocket.

Claims (1)

[Claims for Utility Model Registration] (1) A water-permeable top sheet, a water-impermeable back sheet, an absorbent core interposed between the two sheets, a side flap located on the horizontally opposite side of the core, and a vertical side flap of the side flap. In the disposable diaper, the side flap includes a flat part extending outward from the outer edge of the core, and a flat part extending outward from the outer edge of the core, and a flat part extending outward from the outer edge of the core, and a contraction part of the elastic member with the flat part as a base end. and a side wall portion that has a tendency to stand up in an upward direction by action, and the side wall portion fixes the longitudinal end portion in a lying state with the free end of the longitudinal end portion in the rear region facing inward. , thereby forming a pocket facing inward in the rear region, and fixing the vertical end in the prone state with the free end of the vertical end in the front region facing outward. A diaper featuring: (2) The side wall part is formed separately from the flat part, has breathable and waterproof properties, and the base end of the former is joined to the upper surface of the latter. The diaper described in item 1. (3) The side wall portion has higher air permeability than the back sheet.
Diaper as described in section.