Pump-type dispensing device

Abstract

We propose a pump-type dispenser that is less affected by the tightness of the cap on the container opening. [Solution] The pump-type discharger 100 comprises a cap 10 attached to the opening 51, a pump driven by the movement of a stem 7a, and a head 11 connected to the stem 7a. The head 11 has an extension 11e extending toward the cap 10. The cap 10 comprises a female threaded portion 10c that screws into a male threaded portion 52, a retaining peripheral wall 10b on which the female threaded portion 10c is provided on the inner circumferential surface and held by the opening 51, a top wall 10a extending radially inward from the retaining peripheral wall 10b, an elastic piece 10d provided on the top wall 10a that bends due to the extension 11e when the head 11 is advanced toward the top wall 10a, an outer wall 10g provided on the top wall 10a that surrounds the elastic piece 10d from the outside, and a connecting rib 10s that protrudes from the top wall 10a and integrally connects the elastic piece 10d and the outer wall 10g.

Claims

1. A pump-type dispenser comprising a cap fitted to the mouth of a container holding a liquid, a pump driven by the movement of a stem held at the mouth by the cap, and a head connected to the stem having a discharge port for discharging the liquid to the outside, wherein the liquid inside the container is discharged from the discharge port by moving the head toward the cap, The head has an extension that extends toward the cap, The cap is a pump-type discharger comprising: a female threaded portion that screws into a male threaded portion provided in the opening; a retaining peripheral wall provided on the inner circumferential surface of the female threaded portion and held in the opening; a top wall extending radially inward from the retaining peripheral wall; an elastic piece provided in the top wall that bends due to the extension when the head is advanced toward the top wall; an outer wall provided in the top wall that surrounds the elastic piece from the outside; and a connecting rib that protrudes from the top wall and integrally connects the elastic piece and the outer wall.

2. The elastic piece comprises an elastic piece body and a pair of reinforcing ribs provided on the inner circumferential surface of the elastic piece body and at both ends in the width direction of the elastic piece body. The pump-type discharger according to claim 1, wherein the connecting rib is integrally connected to the outer circumferential surface of the elastic piece body at the center in the width direction of the elastic piece body.

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