Abstract: The ball for a ball game of the invention includes a fabric layer 1 having a spherical 12-hedron where twelve right pentagonal fabric pieces 2 are sewn together. The marginal edges of the fabric piece being folded by 90 degrees, and the marginal edges are sewn together with a sewing machine. The fabric layer is then reversed through cross-like slits 5a, 5b formed in the fabric layer in a location opposite to a valve opening 5 (also formed in the fabric layer) in such a manner that the marginal edges are located on an inner side of the fabric layer. After the bladder is accommodated within the fabric layer through the closure hole 5, the hole 5 is closed by a patch. Onto a surface of the fabric layer, there is adhered the panels. Thereby, the ball for a ball game having no unevenness and soft feeling is attained.

Abstract: The ball for a ball game of the invention includes a fabric layer (1) having a spherical 12-hedron where twelve right pentagonal fabric pieces (2) are sewn together. The marginal edges of the fabric piece being folded by 90 degrees, and the marginal edges are sewn together with a sewing machine. The fabric layer is then reversed through cross-like slits (5a, 5b) formed in the fabric layer in a location opposite to a valve opening (5) (also formed in the fabric layer) in such a manner that the marginal edges are located on an inner side of the fabric layer. After the bladder is accommodated within the fabric layer through the closure hole (5), the hole (5) is closed by a patch. Onto a surface of the fabric layer, there is adhered the panels. Thereby, the ball for a ball game having no unevenness and soft feeling is attained.

Abstract: The bed is equipped with a back lift mechanism and comprises a thigh support mechanism for supporting only the thighs of a user. The bed further comprises cooperative means for performing a thigh lifting action of said the thigh support mechanism in cooperation with the back lift mechanism in back lifting action. The thigh support mechanism has a thigh support member, which has one end, proximal to the waist section of the bed, pivotally mounted on the bed frame to support only the thighs. The thigh support member has a width smaller than that of the bed frame and is provided only at the central region of the width of the bed frame.

Abstract: The present invention provides a hall for ball games which has equivalent or increased cushioning properties when compared conventional balls. The ball for ball games of the present invention includes a bladder made of rubber or elastomer, and a foamed layer covering the outside of the bladder, in which a skin layer is provided on each surface sectionalized by partition portions extending from the surface of the foamed layer, the partitions having a lesser degree of expansion than the main portion of the surface which is sectionalized by the portions.

Abstract: A producing method of ball for ball game including a ball cover and a bladder is disclosed. The method includes steps of (a) inflating a bladder and providing a web layer by coating at least a thread on an outer surface of the bladder thereafter, (b) fabricating a plurality of panels in a predetermined shape, (c) sewing the plurality of panels edge to edge together excluding a portion thereof by a sewing machine to form a ball cover including an inlet opening, (d) inserting the bladder obtained at step (a) into the ball cover obtained at step (c) through the inlet opening, (e) sewing the inlet opening of the ball cover, and (j) inflating the ball for ball game to a predetermined pressure within a shaping mold.

Abstract: A distortion generating sheet (22) intervenes between a first and a second flexible sheets (11) and (12), respectively, with one end (23) thereof fixed to the first sheet (11), and the other end (24) fixed to the second sheet (12). As a consequence, when a shear takes place across the first and second sheets (11) and (12), respectively, the shear is conveyed to the distortion generating sheet (22). A strain gauge (21) fixed to the distortion generating sheet (22) detects and measures the distortion generated by the shear in the distortion generating sheets (22). A third sheet (15) is further provided with its periphery bonded to the first sheet (11) to form a closed space. The force bearing the patient is measured by measuring the pressure in the space formed.

Abstract: To provide a ball for ball game and a method for manufacturing the ball having superior sphericity, an ability to retain its original shape, durability, and soft feel. The fabric layer (12) is formed by sewing with a sewing machine for instance pentagonal first fabric pieces (13) together with composite shaped second fabric pieces (14) in which two hexagons are connected with each other, so that a spherical shape is formed. The marginal edge of the first and second fabric pieces are superimposed in the spherical surface direction, so that corner portions thereof are temporarily attached. Temporary attachment is achieved by inserting the needle into the needle through hole formed in the corner of the first and second fabric pieces, and welding by means of ultra sonic wave, such that the first and second fabric pieces (13, 14) are accurately aligned.

Abstract: A distortion generating sheet (22) intervenes between a first and a second flexible sheets (11) and (12), respectively, with one end (23) thereof fixed to the first sheet (11), and the other end (24) fixed to the second sheet (12). As a consequence, when a shear takes place across the first and second sheets (11) and (12), respectively, the shear is conveyed to the distortion generating sheet (22). A strain gauge (21) fixed to the distortion generating sheet (22) detects and measures the distortion generated by the shear in the distortion generating sheets (22). A third sheet (15) is further provided with its periphery bonded to the first sheet (11) to form a closed space. The force bearing the patient is measured by measuring the pressure in the space formed.

Abstract: A whistle (1) has: a mouthpiece which includes an air inlet (4); a first and a second resonance chambers (5a, 5b) to which air is injected through the air inlet via a first and a second air passages (6a, 6b); a first and a second sound outlets (7a, 7b) in the form of openings formed between the air passages and the resonance chambers; and a first and a second air flow converters (9a, 9b) for varying the flow of air between the air passages and the sound outlets. The air flow converters (9a, 9b) are each part of the sound outlets, and have walls (10a, 10b) which are perpendicular to the air passages (6a, 6b). The air flow converters (9a, 9b) create extra higher harmonics, increase sound pressures in the resonance chambers, and shorten rising time of the whistle, so that the whistle quickly produces loud harmonious beats, which is effective to call attention of people.

Abstract: A compact portable athletic data display apparatus, comprising a generally rectangular flat display section 3 which is rotatably connected at the lower end thereof with a generally rectangular flat control section 2 by means of hinges, so that the display section 3 may be held at upright position to display the data when it is used but folded onto the control section otherwise. In operation, an operator stands up the display section 3 at the upright position, enter data to be displayed on the display section using data input keys. A monitor may be provided on the control section so that he may check on the monitor the data he has entered for display.

Abstract: A method of manufacturing a multi-layer outer panel for a game ball includes three-dimensionally forming a top layer of an outer panel, as well as one or more backing materials disposed underneath the top layer, into a shape substantially corresponding to the surface of the ball. Multi-layer outer panels are then attached to or interconnected to surround an inflatable bladder, thereby producing a game ball while minimizing overstretching of the outer material or the backing material and improving resistance of the outer panels to delamination.

Abstract: A ball for a ball game includes an elastic bladder having the form of a spherical hollow body into which compressed air is charged, a reinforced layer formed on a whole surface of the bladder, and a plurality of leather panels bonded onto the reinforced layer directly or through a cover rubber layer, wherein a peripheral edge portion of the leather panel is folded toward an inside and a thickness adjusting member for eliminating a difference in step caused by the folding of the leather panel is caused to be bonded onto the back of the leather panel surrounded by the folded portion of the leather panel.

Abstract: An air mattress includes a first through a fourth sheets (6, 7, 8, and 9), respectively, which are bonded together along the peripheries thereof and at a multiplicity of bonding spots, creating a triple-layer air cell structure consisting of a first, a second, and a third air cells (13, 15, and 17), respectively. A multiplicity of first bonding spots (10) bonding the first and second sheets together are spaced apart at regular intervals along longitudinal and transverse lines such that four neighboring spots occupy four corners of a tetragon. On the other hand, a multiplicity of second bonding spots (14) bonding the second and the third sheets together are arranged at positions which correspond to the centers of the tetragons. The third air cell has the same structure as the first air cell. These air cells are inflated such that the third air cell maintains high a pressure, while the first and second air cells maintain a low pressure. The low pressure air mattress may effectively prevent bedsores.

Abstract: An air mattress includes a first through a fourth sheets (6, 7, 8, and 9), respectively, which are bonded together along the peripheries thereof and at a multiplicity of bonding spots, creating a triple-layer air cell structure consisting of a first, a second, and a third air cells (13, 15, and 17), respectively. A multiplicity of first bonding spots (10) bonding the first and second sheets together are spaced apart at regular intervals along longitudinal and transverse lines such that four neighboring spots occupy four corners of a tetragon. On the other hand, a multiplicity of second bonding spots (14) bonding the second and the third sheets together are arranged at positions which correspond to the centers of the tetragons. The third air cell has the same structure as the first air cell. These air cells are inflated such that the third air cell maintains high a pressure, while the first and second air cells maintain a low pressure. The low pressure air mattress may effectively prevent bedsores.

Abstract: A whistle (1) has: a mouthpiece which includes an air inlet (4); a first and a second resonance chambers (5a, 5b) to which air is injected through the air inlet via a first and a second air passages (6a, 6b); a first and a second sound outlets (7a, 7b) in the form of openings formed between the air passages and the resonance chambers; and a first and a second air flow converters (9a, 9b) for varying the flow of air between the air passages and the sound outlets. The air flow converters (9a, 9b) are each part of the sound outlets, and have walls (10a, 10b) which are perpendicular to the air passages (6a, 6b). The air flow converters (9a, 9b) create extra higher harmonics, increase sound pressures in the resonance chambers, and shorten rising time of the whistle, so that the whistle quickly produces a loud harmonious beats, which is effective to call attention of people.

Abstract: A ball for a ball game includes a bladder made of a spherical elastic air-impermeable material in a hollow spherical shape and filled with air; a spherical flexible shape-maintaining frame body containing the bladder and having openings; and skin panels in a surface skin layer and having edges contacting one another on the frame body, wherein at least the edges of the skin panels are adhered to the frame body.

Abstract: First and second air cell units 2 and 3, respectively, are divided into their right and left air cells 2a, 3a, 2b and 3b, respectively, and central bent sections 2c and 3c. Each of the bent section 2c and 3c connects associated right and left air cells together at offset relationship in the direction of the mat length. The first and the second air cell units are alternately inflated and deflated, so that the air cells are inflated asymmetrically to thereby support a patient lying thereon at asymmetrical portions. The bent sections 2c and 3c are configured to gently deform the respective air cells so as to allow the bent sections to abut closely on the patient's back without a sense of incompatibility with the air cells. The air mat may thus provide well-balanced and well-distributed supporting forces for the patient, which is suitable for preventing decubitus of the patient.