Recoil shock relieving pad for rifles
US4982521A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 21, 1990 |
| Grant date | Jan 8, 1991 |
| Priority date | — |
| Expiry date | May 21, 2010 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF41C23/08
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The subject recoil pad for rifles and shotguns is a one-piece plastic spring comprising a base which attaches to the end of the butt of the rifle or shotgun, a working part which, in use, contacts the user's shoulder and two struts interconnecting the base and working part. In plan view the pad has an elongated egg shape, matching the shape of the end of the butt. The base, working part and struts are all essentially flat, the base and working part being parallel to each other and about 3/8 of an inch apart. The struts extend from the ends of the working part at an angle to the base so that the junctures of the struts and base are some distance from the ends of the base. The angles are in the range of 30.degree. to 50.degree. with 40.degree. preferred. In operation the working part bends to help distribute recoil foces evenly over the area of the face of the working part and the struts' deflections decrease the angles, increasing the mechanical advantage of the struts in stretching the working piece, thus giving the pad a fairly load/deflection characteristic. The pad material is fully resilient with high internal damping.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.