Spouted Bag Valve With Elastic Movable Portion
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Solution Overview
Problem
Conventional spouted bag bodies often result in forceful liquid discharge when gripping, leading to unwanted spraying, especially with beverages like wine or Japanese liquor, as they require excessive pressure to tilt the spout downward for smooth pouring.
Innovation Solution
A spouted bag body design featuring a cylindrical spout with a valve mechanism that includes a narrowed portion and an umbrella-type valve with elastic components, allowing contents to flow by tilting the spout without applying excessive pressure to the bag body, utilizing locking portions and a movable, elastic valve to control liquid flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional spouted bag body with a cylindrical spout and check valve is used, then liquid can be dispensed through the spout, but excessive pressure must be applied to the bag body to tilt the spout downward, causing forceful discharge and spraying
Solution Approach 1:
The invention changes the physical parameters of the spout by introducing a narrowed portion that creates a pressure differential. When the spout is tilted downward, liquid pressure builds up at the narrowed portion, automatically pushing the spout to a more horizontal position without requiring excessive manual pressure on the bag body.
Solution Approach 2:
The valve portion acts as an intermediary mechanism between the liquid pressure and the spout positioning. The elastic movable portion of the valve interacts with the narrowed portion to create a self-regulating system that controls spout orientation and liquid flow, eliminating the need for direct manual manipulation.
2Productivity
If excessive pressure is applied to the bag body to operate the spout, then liquid can be discharged, but the contents undergo oxidation due to excessive pressure and air infiltration
Solution Approach 1:
The system performs self-service by using the liquid's own pressure to position the spout and control discharge. The narrowed portion and elastic valve work together to automatically regulate flow without external intervention, preventing oxidation by eliminating the need for excessive pressure application that would compromise the seal.
Solution Approach 2:
The invention changes the pressure distribution parameters within the spout system. The narrowed portion creates a localized pressure buildup that triggers automatic spout repositioning and controlled valve opening, allowing efficient liquid discharge while maintaining lower overall pressure that preserves the air-tight seal and prevents oxidation.
3Reliability
If a check valve mechanism is implemented to prevent air infiltration, then oxidation is prevented, but the spout requires excessive pressure to operate and causes forceful liquid discharge
Solution Approach 1:
The invention introduces dynamic elements through the elastic movable portion of the valve and the flexible spout positioning mechanism. These dynamic components respond automatically to pressure changes and gravitational forces, allowing the check valve to maintain air-tight sealing while enabling easy operation through natural pressure differentials created by spout tilting.
Solution Approach 2:
The spout is segmented into distinct functional zones: the narrowed portion for pressure buildup, the valve portion with movable elastic component for flow control, and the discharge opening. This segmentation allows each zone to perform its specific function independently, maintaining reliable sealing while reducing operational force requirements.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables easy and controlled liquid discharge by tilting the spout downward without pressing the bag body, preventing excessive pressure and oxidation, while maintaining the functionality of a check valve to ensure air-tight sealing.
Implementation Method 1
a movable portion (42) which is formed of a material having elasticity, is connected to the support portion (41), and covers an opening of the narrowed portion (29) on the other side by coming into contact with an edge portion of the opening of the narrowed portion (29) on the other side
Implementation Method 2
when the spout is tilted downward without applying excessive pressure to the bag body
Data Source
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AI summary
Provided is a spouted bag body (1) capable of having the same function as that of a check valve and allowing contents to easily come out by tilting a spout downward without applying excessive pressure to a bag body. A spouted bag body includes: a spout (10) having a body portion (20) formed in a cylindrical shape, and a valve portion (40) disposed inside a cylindrical hole of the body portion; and a bag body attached to the body portion to seal an opening of the cylindrical hole on one side, in which the body portion is provided with a narrowed portion (29) which protrudes from an inner surface of the cylindrical hole over an entire circumference thereof, and the valve portion (40) includes a support portion (41) attached to the body portion, and a movable portion (42) which is formed of a material having elasticity, is connected to the support portion, and covers an opening of the narrowed portion (29) on the other side by coming into contact with an edge portion of the opening of the narrowed portion on this named other side.