Handle and a method for manufacturing a handle
a manufacturing method and handle technology, applied in the field of handles, can solve the problems of difficult manufacturing, difficult to manufacture, and difficult to use the handle, and achieve the effect of easy manufacturing and excellent properties during us
Inactive Publication Date: 2015-05-07
FISKARS GARDEN OY
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- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
The present invention provides a handle that is easy to make and works well. This is achieved by using a surface layer with a uniform thickness that has protrusions in a specific pattern. This design allows for the creation of a handle with the desired pattern of protrusions without needing to change the thickness of the surface layer.
Problems solved by technology
A drawback with a handle as described above is that the differences in the layer thickness of the surface portion results in a handle with an outer surface that is softer at the location of the protrusions where the material layer of the outer surface is thicker and harder at the locations between the protrusions where the material layer of the outer surface is thinner.
Such a handle is not comfortable or practical to use.
Additionally, manufacturing problems occur, as layers of different thickness need time periods of different length to cure.
Method used
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Embodiment Construction
[0014]FIGS. 1 to 4 illustrate a method of manufacturing a handle. The handle may be a handle for a gardening tool, such as a handle for a an axe, for a spade or for a lopper, for instance.
[0015]In FIG. 1 a surface portion 1 is manufactured. In this example the surface portion 1 is manufactured in a mould 2. A core 3, which may protrude from the mould 2 at one end, is arranged into the mould 2 to ensure that the surface portion 1 will be hollow. The mould is filled with a suitable plastic material via an opening 7, which after curing forms a hollow cylindrical surface portion, as illustrated in FIG. 2. The surface portion 1 has a uniform thickness. In other words, the thickness of the material layer in all parts of the surface portion is practically the same.
[0016]One alternative is to manufacture the surface portion 1 of a Thermoplastic Elastomer (TPE), which results in relatively thin and flexible surface portion capable of being stretched and which offers a user a comfortable grip...
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Abstract
A handle for a hand tool includes a rigid body and a surface portion arranged to cover at least a part of the rigid body. The rigid body includes protrusions arranged in a predetermined pattern. The surface portion is arranged to cover at least a part of the rigid body such that the predetermined pattern of protrusions is present in an outer surface of the surface portion, and a thickness of the surface portion at the protrusions is the same or almost the same as a thickness of the surface portion at locations between the protrusions.
Description
BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]This invention relates to a handle for a hand tool and to a method for manufacturing a handle.[0003]2. Description of Prior Art[0004]Previously there is known a handle with an outer surface portion and with an inner rigid body. In this known solution the body is manufactured of a material with the required properties needed to obtain a handle that is strong enough, stiff enough and durable enough such that the user may direct the necessary forces towards the handle during use without braking or bending the handle. The surface portion is provided as a gripping portion of a material that ensures a good non-slippery grip for the user. The material of the surface portion is softer than the material of the rigid body.[0005]The above mentioned known handle is manufactured with a rigid body having a smooth outer surface. In order to obtain a good non-slippery grip for the user protrusions are formed in the outer surface of the...
Claims
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Patent Timeline
Login to View More IPC IPC(8): B25G1/10B29C43/18B26B23/00
CPCB25G1/10B26B23/00B29L2031/283B29L2009/00B29C43/18B25G1/102B29L2031/463B29C45/1418B29C45/14549B29C45/14598B29C45/14614
Inventor HOLM, CARL-OLOFRIIKONEN, JOUNI
Owner FISKARS GARDEN OY