Manual lawn aerator with ejection mechanism for hollow tines
The lawn aerator's automatic ejection mechanism addresses the clogging issue by using a footplate or hand-operated lever to clean hollow tines, ensuring efficient soil ejection without manual intervention.
Patent Information
- Application Number
- DE202025003797
- Authority / Receiving Office
- DE · DE
- Patent Type
- Utility models
- Current Assignee / Owner
- Filing Date
- 2025-12-06
- Publication Date
- 2026-03-05
- Estimated Expiration
- 2035-12-31
AI Technical Summary
Conventional hand-operated lawn aerators with hollow tines face the issue of tines becoming clogged with soil after a few uses, necessitating time-consuming manual cleaning.
The lawn aerator incorporates an automatic ejection mechanism within the hollow tines, activated by a footplate or hand-operated lever, to expel soil without additional tools, allowing simultaneous cleaning of at least two tines.
The mechanism effectively prevents tine clogging by automatically ejecting soil, reducing the need for manual cleaning and enhancing operational efficiency.
Abstract
Description
[0001] Manual lawn aerators for aerating lawns or soil typically consist of a rigid base element with hollow tines on the underside, connected to a handle. Such devices are used to improve soil aeration and water absorption, particularly on lawns, in gardens, or on sports fields and golf courses.
[0002] Conventional hand-operated lawn aerators with hollow tines have the problem that the tines become clogged with soil after only a few uses. Manual cleaning is time-consuming and impractical.
[0003] The present invention offers a solution in which the soil material located in the hollow tines is automatically ejected - without additional tools.
[0004] The invention comprises two independent embodiments, each of which can be protected separately: 1. Foot-operated version: The ejection elements of the ejection device are arranged directly in the hollow tines and are moved downwards by actuating a footplate to eject the soil from the hollow tines. 2. Manually operated version: The ejection elements are also located inside the hollow tines, as in the foot-operated version, and are moved downwards by hand using a push rod, a handle or a lever on the shaft to clean the hollow tines.
[0005] In the standard version, the ejection elements automatically return to their starting position by spring force after the actuating device is relieved; alternatively, the reset can be done manually or mechanically.
[0006] The mechanism is designed so that at least two hollow tines can be cleaned simultaneously. The frame, hollow tines, and ejection elements are preferably made of metal, in particular stainless steel.
[0007] Optionally, the same ejection and spring mechanism can be used in both the foot-operated and hand-operated versions, with both versions being able to be operated independently of each other.
[0008] The ejection element can be designed as a piston, plate, rod or other sliding element.
Claims
[1] Lawn aerator with hollow tines, characterized by that the lawn aerator has an ejection device with which soil material taken up in the hollow tines can be pushed out towards the discharge opening by an ejection element arranged in the respective hollow tine, wherein the ejection element is movable by an actuating device. [2] Lawn aerator according to claim 1, characterized by that the operating device is designed as a foot-operated device. [3] Lawn aerator according to claim 1, characterized by that the ejection device is manually operated by a sliding or pressure element on the shaft. [4] Lawn aerator according to claim 2 or 3, characterized by that the ejection element is returned to its starting position either automatically by spring force or manually or mechanically after the actuating device has been relieved. [5] Lawn aerator according to any one of the preceding claims, characterized by that at least two hollow prongs are cleaned simultaneously by actuating the ejection device. [6] Lawn aerator according to any one of the preceding claims, characterized by that the frame, hollow prongs and ejection elements are made of metal, preferably stainless steel. [7] Lawn aerator according to any one of the preceding claims, characterized by that the foot-operated and hand-operated versions use the same ejection and spring mechanism, and both versions can be operated independently of each other.