Patent ID: 8449402
Filing Date: 2013-05-28
Classification: A63B

Abstract:
1. A device for monitoring the accuracy with which a golf club is guided in the swing and strikes a golf ball with the striking face of its club head, comprising: a plate-shaped sensor, which can be releasably fastened on the striking face in a defined position, by means of which the exact point of the position of the impact point in the course of striking a golf ball can be localized, the plate-shaped sensor being a touchpad, with a rectangular support plate, having a first single semiconductor layer applied to its front, which is connected along two oppositely located edge areas with a printed strip conductor connected to a signal line, and with a flexible protective plate arranged in front of the support plate, to the back of which a second single semiconductor layer has been applied and which is connected along two oppositely located edge areas with respective printed strip conductors, which are connected to a signal line and extend transversely in respect to the strip conductors connected with the first semiconductor layer, both semiconductor layers having a defined linear resistance, an electronic measuring and computing circuit, mounted together with an electrical voltage source in a housing that can be releasably fastened in a defined position on the shaft or on the back of the head of the golf club, which circuit cooperates with the plate-shaped sensor via signal lines and by means of which circuit a measuring process for determining the coordinates of the impact point in relation to the position of a predetermined reference point can be performed in the course of an impact on a golf ball, a rotation rate sensor, mounted in the housing, the sensitive axis of which sensor extends essentially parallel to the lower edge of the striking face, which sensor cooperates with the measuring and computing circuit for determining the direction of rotation, angular speed and duration of the phases of the backswing and forward swing motions of the club head, and a radio module, connected with the measuring and computing circuit, for the wireless transmission of the results of the measurements to an evaluation device in the manner of a cell phone, smart phone or PDA for the program-controlled evaluation and display of the results of the measurements on its display screen.