Abstract: The evaluation method includes a first step, by using measurement means M1 which can measure force F acting between a swing subject and the sport hitting tool or a specific directional component F1 thereof, obtaining measured value Vf of the force F or the force F1 at time after the impact, and a second step of determining the hit feeling on the basis of the measured value Vf at least at the one time. Preferably, the force F or the force F1 is force Fs containing a component in a shear direction. Preferably, in the first step, the measured values Vf in a specific interval Z12 from time T1 to T2 after the impact are obtained chronologically. Preferably, the evaluation is made based on a difference between a maximum value and a minimum value of the measured values Vf.

Abstract: An evaluation method for hit feeling of a sport implement according to the present invention includes an acceleration measurement step for measuring acceleration of a sport hitting tool 4 and a data analysis step for analyzing data obtained in the measurement. In the data analysis step, an amount of change in acceleration in a first cycle of vibration after hitting is calculated. The evaluation method evaluates hit feeling to be felt by a person, using the amount of change in the acceleration. Preferably, in the data analysis step, an amount of change in acceleration in the first cycle of predetermined time is calculated. The predetermined time is within 1.5 msec from the time of hitting. Preferably, the sport hitting tool 4 has the hitting section detachably attached to a shaft section.

Abstract: A method for measuring behavior of a head of a golf club and of a ball includes obtaining two-dimensional data of three or more marks on a face surface at two points in time before impact; identifying three-dimensional positions of the marks on the two points in time from the two-dimensional data; identifying behavior of the face surface of the three-dimensional position of each mark at the two points in time; identifying time of a contact of the face surface with the ball; estimating behavior of the head at the time of contact of the face surface with the ball; obtaining two-dimensional data of the ball at the two points in time; identifying three-dimensional position and posture of the ball at the two points in time; and estimating a behavior value of the ball from the three-dimensional position and posture of the ball.

Abstract: In a method capable of diagnosing quality of a swing without circumstance, a camera 10 photographs a golf player swinging a golf club to hit a golf ball and the golf club. Image data is obtained by photographing. A calculating part 16 extracts a frame from the image data. The calculating part 16 obtains an edge image of the frame. The calculating part 16 subjects the edge image to binarization based on a predetermined threshold value to obtain a binary image. The calculating part 16 subjects the binary image to Hough transform processing to extract a position of a shaft of the golf club, and specifies a tip coordinate of the golf club. The calculating part 16 contrasts tip coordinates of different frames to determine a temporary flame in an address. The calculating part 16 calculates color information in a reference area of each of the frames by backward sending from a frame after the temporary frame by a predetermined number, and determines a frame in the address based on change of the color information.

Abstract: A valuation method of the present invention quantitatively estimates hit feeling of a sport hitting tool. The evaluation method includes: a first step of using a measuring means M1 capable of measuring forces F acting between a swing subject and the sport hitting tool or specific directional components F1 thereof to obtain values of the forces F or the components F1 at times after impact; and a second step of deciding the hit feeling based on the value of the force F or the component F1 at least one of the times. Preferably, the values of the forces F or the components F1 in a specified period Z12 between a time T1 and a time T2 after the impact are obtained in time series in the first step. Preferably, the hit feeling is evaluated based on an integrated value Sf of the forces F or the components F1 in the specified period Z12 in the second step.

Abstract: A method of evaluating a golf club is disclosed. The method includes a step (St1) of determining motions of the golf club during a swinging motion of a golf player including a period ranging from a time (Ts) to a time (Tf); a step (St2) of obtaining in a time series power index values (Pw) during the period ranging from the time (Ts) to the time (Tf), based on the result of the determination; a step (St3) of obtaining a power integration value (Sp) by integrating the power index values (Pw) during the period ranging from the time (Ts) to the time (Tf); a step (St4) of calculating club energy (Eg) of the golf club at the time (Tf); and a step (St5) of quantitatively evaluating club suitability based on the power integration value (Sp) and the club energy (Eg). Each of the power index values (Pw) is a value which is correlated to a power of a work provided from the golf player to the golf club.

Abstract: A computer (16) for capturing a colored moving image photographed by photographing means (14, 15) has an extraction means for extracting images having necessary swing postures as check-point images from a large number of still images constituting the color moving image; a means for obtaining a coordinate of a position of each of attention-focused points, which operate, in each of the check-point images, while a golfer (11) is swinging; a means for diagnosing a golfer's swing form by setting a plurality of diagnosis items for each trajectory pattern obtained by a ball motion measuring apparatus (20) to classify behavior of a golf ball and by comparing numerical data generated from data of the coordinate of the position of each of the attention-focused points with a judgement value set in each of a plurality of diagnosis items; and a means for outputting an advice drill corresponding to a result of a diagnosis.

Abstract: Ribbon tension detecting means (20, 21), which are formed of a plate-like lever body (35) each, are located individually on the upstream side and the downstream side of a platen (7) with respect to its travel. The plate-like lever body (35) has first and second rollers (47, 48) on the upstream and downstream sides with respect to travel of a ribbon, and swings around an axis of rotation of the second roller (48), depending on a tension of the ribbon traveling guided by the rollers (47, 48). If the amount of its swing is not less than or not more than a fixed value, a ribbon feed motor (18) or a ribbon take-up motor (19) is driven. Further, the ribbon tension detecting means (20, 21) are provided with a smoothing member which touches the ink ribbon (13) to remove wrinkles from the ink ribbon (13).

Abstract: A ribbon supply shaft drive motor (8) and a ribbon take-up shaft drive motor (10) are drivingly controlled separately. If the state of a ribbon is not changed after a control cycle is repeated for a set time, the rotational speed of the drive motors (8, 10) is increased step by step.

Abstract: A golf swing-measuring system including a computer (16) for capturing a colored moving image obtained by photographing a golfer (11) who swings by gripping a golf club (13). The computer (16) selects and extracts one or more images each showing a swing posture as check-point images such as an address image, a take-back shaft 8 o'clock image, a take-back shaft 9 o'clock image, a take-back unskillful arm horizontal image, a top image, a downswing unskillful arm horizontal image, a downswing shaft 9 o'clock image, an impact image, a follow-through shaft 3 o'clock image, and a finish image and extracts from a large number of still images constituting said color moving image. Thereafter the computer (16) obtains coordinates of positions of attention-focused points that operate in said check-point images when said golfer swings.

Abstract: A computer (15) captures the colored moving image of the golfer (11) who swings by gripping a golf club (12) having colored marks (M1 through M3) attached to a shaft (12a) thereof. The computer (15) converts the colored moving image into a plurality of still images; executes binarization for each pixel of a plurality of the still images by using a specific threshold of color information and recognizes pixels, of the still images, which satisfy the threshold as positions of the colored marks (M1 through M3) and extracts a movement of the shaft (12a) by using a movement vector amount of one of the colored marks (M1 through M3 ) or by using a vector angle between two of the colored marks (M1 through M3). In this manner, the computer (15) automatically extracts check-point images.

Abstract: A head unit (200) and a sensor unit (300) are freely Rotatably mounted in a printer main body (100). A rod-shaped portion (320) is projectingly provided to the tip portion of the sensor unit (300), and a first catching portion is provided to the rod-shaped portion (320). Furthermore, a first fixing member (220) is provided to the tip portion of the head unit (200), and the first fixing member (220) is freely detachably fitted to the first catching portion.

Abstract: A method of measuring of the present invention includes the steps of photographing a rotating body with the curved surface having marks to obtain two-dimensional images thereof; generating a three-dimensional imaginary body with the curved surface having marks; setting an arbitrary posture of the imaginary body as a reference posture, performing a posture displacement operation in such a way that the marks of the imaginary body are coincident with the marks of the body; specifying a three-dimensional posture of the body on the basis of an amount of the posture displacement operation relative to the reference posture; and determining the rotational amount of the body and the direction of the rotational axis thereof by computing a rotation matrix relating to a rotation operation to make the three-dimensional posture of the body at one time coincident with that at another time.

Abstract: Provided is an automatic tracking method for a golf swing, the following steps of: attaching colored marks onto a golfer and a golf club; adopting a specific still image as a reference image to store reference color information and coordinate data of each of the marks; setting, on a search range, which is a region including the position of the mark predicted on the next image and setting a color range of each mark that is an allowable range, in which colors can be regarded as the same as reference color information regarding a pixel, as a position of a mark, in a case where the absolute value of a difference between the still image being considered on which a differential processing has been conducted with the background image in the search range and the reference color information falls within the color range and is the minimum.

Abstract: A reference posture and a reference position of the imaginary sphere and an arbitrary position are set. The relationship between three-dimensional coordinates and two-dimensional coordinates is derived by using a photographing means. Positions of marks given to the imaginary sphere formed at the coordinates in the three-dimensional space are converted into positions on a two-dimensional image. An operation of displacing a posture of the imaginary sphere relative to the reference posture and the reference position is performed in such a way that the coordinate values of the two-dimensional imaginary marks and the coordinate values of the marks present on the two-dimensional images of the sphere are coincident with each other. The rotational and flight characteristics of the sphere are computed, according to the three-dimensional posture and position at one time and the three-dimensional posture and position thereof at another time.

Abstract: A ribbon supply shaft drive motor (8) and a ribbon take-up shaft drive motor (10) are drivingly controlled separately. If the state of a ribbon is not changed after a control cycle is repeated for a set time, the rotational speed of the drive motors (8, 10) is increased step by step.

Abstract: Ribbon tension detecting means (20, 21), which are formed of a plate-like lever body (35) each, are located individually on the upstream side and the downstream side of a platen (7) with respect to its travel. The plate-like lever body (35) has first and second rollers (47, 48) on the upstream and downstream sides with respect to travel of a ribbon, and swings around an axis of rotation of the second roller (48), depending on a tension of the ribbon traveling guided by the rollers (47, 48). If the amount of its swing is not less than or not more than a fixed value, a ribbon feed motor (18) or a ribbon take-up motor (19) is driven. Further, the ribbon tension detecting means (20, 21) are provided with a smoothing member which touches the ink ribbon (13) to remove wrinkles from the ink ribbon (13).

Abstract: A simulation method includes the step of momently measuring a value of each of a strain, a strain speed, and a stress generated in the viscoelastic material, deriving time history data of a viscous drag, the strain speed and the stress, thereby deriving a relationship among the strain, the strain speed, and the viscous drag and setting the product as a product model whose performance is analyzed; inputting the relationship to the product model; and computing a stress and strain of a deviation component by using a deviation main strain and a deviation main strain speed converted from an entire coordinate system into a main strain coordinate system and a main strain speed coordinate system respectively to thereby conduct a simulation in consideration of a change of the viscous drag which occurs in dependence of a variation of the strain and the strain speed.

Abstract: A head unit (200) and a sensor unit (300) are freely Rotatably mounted in a printer main body (100). A rod-shaped portion (320) is projectingly provided to the tip portion of the sensor unit (300), and a first catching portion is provided to the rod-shaped portion (320). Furthermore, a first fixing member (220) is provided to the tip portion of the head unit (200), and the first fixing member (220) is freely detachably fitted to the first catching portion.

Abstract: Reference points (M1 through M17) are specified in colors at two or more positions longitudinally spaced at a given interval on a golf club shaft (11a) and one or more positions selected from among a golfer's head and the like. A moving image of a golfer's swing is photographed by cameras (13-1, 13-2). The moving image of the swing is converted into a plurality of still images. The still images are stored in a computer (14). Evaluation items to be checked including a swing posture and a shaft angle in a range from an addressing state till an impact state are expressed by numeric values, based on coordinate data of each of the reference points (M1 through M17) disposed on a plurality of the still images. The data expressed by the numeric values are compared with judging data inputted to the computer (14) in advance as ideal values.