Rubber mallet
10682746 ยท 2020-06-16
Assignee
Inventors
Cpc classification
B25G3/28
PERFORMING OPERATIONS; TRANSPORTING
B25D2250/295
PERFORMING OPERATIONS; TRANSPORTING
International classification
B25G3/28
PERFORMING OPERATIONS; TRANSPORTING
Abstract
A rubber mallet includes a handle and a striking head. The striking head includes an outer body and an inner body within the outer body. The outer body defines a receiving space receiving the inner body. The outer and inner bodies are made of different materials.
Claims
1. A rubber mallet comprising: a handle; and a striking head including an outer body and an inner body disposed within the outer body, wherein the outer body defines a receiving space receiving the inner body, wherein the outer body and the inner body each have a polygonal shape with a plurality of sides and are made of different materials, wherein the receiving space has a plurality sides corresponding to and surrounding the plurality sides of the inner body wherein the outer body defines a hole, and wherein the handle has a first end inserted through the hole of the outer body and fixed to the inner body and a second end protruding outside of the outer body and disposed outside of the hole; wherein the inner body defines a first positioning space and a second positioning space in communication with the first positioning space, wherein an opening of the first positioning space extends through one side of the inner body, and wherein the first end of the handle fixed to the inner body is inserted in the second positioning space, wherein the outer body includes at least one first coupling structure and the inner body includes at least one second coupling structure mutually engaging with the at least one first coupling structure, wherein one of the at least one first and second coupling structures is a protrusion and the other of the at least one first and second coupling structures is a recess, and wherein the at least one first coupling structure is located in the receiving space and includes a first section and a second section extending radially out from the first section, wherein the at least one second coupling structure includes a third section and a fourth section respectively engaging with the first section and the second section of the at least one first coupling structure and includes the fourth section extending radially from the third section, wherein the at least one first coupling structure has a first width and a second width greater than the first width, and wherein the first and second widths are respectively defined at the first and second sections of the at least one first coupling structure.
2. The rubber mallet as claimed in claim 1, wherein the inner body includes recycled material as a constituent material.
3. The rubber mallet as claimed in claim 2, wherein the inner body includes constituent materials including styrene-ethylene-butylene-styrene, paraffin oil, polypropylene, calcium carbonate, and black organic pigment.
4. The rubber mallet as claimed in claim 3, wherein the outer body includes constituent materials including styrene-ethylene-butylene-styrene and paraffin oil.
5. The rubber mallet as claimed in claim 2, wherein the outer body includes constituent materials including styrene-ethylene-butylene-styrene and paraffin oil.
6. The rubber mallet as claimed in claim 1, wherein the handle and the inner body are made in one piece.
7. The rubber mallet as claimed in claim 1 further comprising an inset balance disposed in the second positioning space.
8. The rubber mallet as claimed in claim 7, wherein the inset balance defines a hole receiving the handle.
9. The rubber mallet as claimed in claim 7, wherein the inset balance is metallic.
10. The rubber mallet as claimed in claim 1, wherein the handle includes a recess and the inner body includes a protuberance located in the first positioning space engaging with the recess.
11. The rubber mallet as claimed in claim 1, wherein for the handle and the striking head are made of different materials.
12. The rubber mallet as claimed in claim 11, wherein the handle is a wooden handle.
13. The rubber mallet as claimed in claim 1, wherein the inner body and the receiving space are of quadrilateral shape.
14. The rubber mallet as claimed in claim 1, wherein the inner body and the receiving space are of polygonal shape.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
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DETAILED DESCRIPTION OF THE INVENTION
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(8) The handle 10 is a wooden handle, but not limited thereto. The handle 10 inserts through a hole 212 defined by the outer body 21 and has a first end fixed to the inner body 22 and a second end protruding outside of the outer body 21 and disposed outside of the hole 212. The inner body 22 defines a first positioning space 221 and includes a protuberance 224 located in the first positioning space 221. The handle 10 includes a recess 11 engaged by the protuberance 224. Thus, the handle 10 and the striking head 20 are strongly coupled together. The inner body 22 also defines a second positioning space 222 in communication with the first positioning space 221. An inset balance 30 is disposed in the second positioning space 222. The inset balance 30 is metallic. The inset balance 30 defines a hole 31. The handle 10 inserts in the second positioning space 222 and engages with the hole 31 of the insert balance 30. The inset balance 30 has a hardness greater than a hardness of the inner body 22. The inset balance 30 not only enables a stronger connection between the handle 10 and the inner body 22, but also prevents the handle 10 from damaging the inner body 22.
(9) Furthermore, the outer and inner bodies 21 and 22 are made of different materials. The outer body 21 includes constituent materials including styrene-ethylene-butylene-styrene and paraffin oil. The outer body 21 is rubbered. The inner body 22 includes recycled material as a constituent material. The inner body 22 includes constituent materials including styrene-ethylene-butylene-styrene, paraffin oil, polypropylene, calcium carbonate, and black organic pigment. In addition, the handle 10 and the striking head 20 are made of different materials.
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(12) In view of the forgoing, the rubber mallet is cheaper than conventional rubber mallets because low-cost recycled material constitute the inner bodies 22, 22a, and 22b. In addition, the inset balance 30 enables the rubber mallet to provide substantially more kinetic energy per strike. Therefore, a user can easily operate the rubber mallet to hit an object.
(13) The foregoing is merely illustrative of the principles of this invention and various modifications can be made by those skilled in the art without departing from the scope and spirit of the invention.