Foam Broom Body Fastening for Lower-Cost Secure Assembly
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Solution Overview
Problem
Existing broom bodies with foam and bristle combinations face high manufacturing costs due to complex fastening methods, such as dovetail guides with undercuts, which are expensive to produce and prone to wear.
Innovation Solution
The broom body features a dovetail profile or groove with interruptions for easy insertion and snapping mechanisms, allowing for secure and cost-effective attachment of the foam body, which can be inserted parallel or perpendicularly to the broom body, using fastening means like pins, snap closures, or a two-part supporting body for stable and easy replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a dovetail guide with undercuts is used to attach the foam body, then the foam body is securely fastened to the broom body, but the manufacturing cost increases due to complex molding processes
Solution Approach 1:
The broom body is divided into a base body and a separate supporting body that can be produced independently and assembled together. The supporting body with fastening means is inserted into the base body, allowing each component to be manufactured separately using simpler processes while achieving secure attachment through the combination of components
Solution Approach 2:
The supporting body is inserted into the base body of the broom, creating a nested structure where the supporting body with its fastening means (pins, snap closures, or two-part construction) is housed within the base body, achieving secure attachment without requiring complex undercut molding
2Reliability
If a dovetail guide with undercuts is used to attach the foam body, then the foam body is securely fastened to the broom body, but the production time increases due to complex assembly processes
Solution Approach 1:
By segmenting the broom into separable components (base body and supporting body) with standardized fastening interfaces, the assembly process is simplified and can be performed more quickly compared to complex dovetail guide assembly, while maintaining secure attachment through the fastening means
Solution Approach 2:
The supporting body and base body are designed with pre-configured fastening means (pins, snap closures, or two-part construction) that enable quick assembly without requiring complex alignment or specialized assembly tools, reducing production time while ensuring secure attachment
3Ease of operation
If the foam body is made of soft material for effective cleaning, then cleaning performance is improved, but wear resistance decreases
Solution Approach 1:
The broom combines the soft foam body for cleaning effectiveness with a harder supporting body made of injection-moldable plastic that provides structural strength and wear resistance. The supporting body with its fastening means protects the foam body while enabling easy replacement when the foam wears out
Solution Approach 2:
The design enables the foam body to be easily replaced when worn by simply detaching it from the supporting body through the fastening means (pins, snap closures, or two-part construction), allowing the durable supporting body to be recovered and reused with a new foam body, extending the overall service life of the broom
Data Source
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AI summary
The invention relates to a broom body (1) having, on its underside facing the surface to be cleaned, at least two cleaning bodies (3, 4) made of different materials. One cleaning body (3) is formed by a foam material body (5), which is non-positively and/or positively joined to the broom body (1). This foam material body (1) can be inserted into the broom body (1) in a manner that is perpendicular to the longitudinal axis (6) of the broom body (1), and the foam material body (5) has at least one fastening means (7) for positively fastening it to the broom body.