Abstract: A tremolo device for a stringed instrument such as a guitar in which a reelable member is provided to which the ends of the instrument strings are connected. Said reelable device includes a tremolo arm for oscillating the reelable device in one direction and return springs for restoring the reelable device in the opposite direction to provide a tremolo effect under the control of the operator. The reelable device comprises a plurality of arcuate members, each individual to one of the strings with the radius of curvature of each arcuate member being smaller for the largest diameter spring and larger for the smallest diameter string and varying appropriately in between. Other effects may also be produced in that the arcuate curvature may be other than a simple arc.

Abstract: A cord bushing including a body portion and a lid portion defining a passage for holding a cord and being fittable into a first aperture in an outer panel of an electrical apparatus, flanges provided at one end of the body portion and lid portion and having outer diameters greater than the first aperture, grooves formed in the body portion and the lid portion adjacent to the flanges for locking the body portion and the lid portion in the outer panel, and a falling-off preventing bar in the form of a rod extending from the flange of the body portion substantially in the same direction as the passage and adapted to be inserted into a second aperture when the body portion and lid portion are fitted into the first aperture, the falling-off preventing bar being provided with a check member which prevents the falling-off preventing bar from being extracted once it passes through the second aperture.

Abstract: According to the printed circuit board holding appliance of the present invention, a plurality of the holding appliances each comprising a spacing holding member and a fitting member can be connected vertically continuously through each tapered lower end portion. On transporting, therefore, plural printed circuit boards can be temporarily fixed easily by merely stacking and conveyed without being rattled by temporal fixing. Besides, since the vertical connection or the temporary fixation of the board holding appliances can be done easily, the printed circuit boards in a stacked state can be fixed also to a support member easily and firmly with a mounting screw.

Abstract: The present invention provides an appliance for fixing an electronic display board, comprising a body of a flat plate-like support structure, elastic retaining members adjacent to both ends in the longitudinal direction of the fixing appliance body through thin-walled connections, the elastic retaining members being bendable through the thin-walled connections to hold the electronic display board on the surface of the fixing appliance body, pawl retaining pieces adapted to engage pawls of the elastic retaining members, and snaps projecting from the back of the fixing appliance body and adapted to be inserted into fixing holes formed in a chassis substrate to fix the fixing appliance body to the substrate in a spaced relation to each other, and further having leg portions capable of being fixed to the substrate, thereby permitting the electronic display board to be firmly held in place.

Abstract: A lead wire holder including a first holding member and a second holding member. The first and second holding members are interconnected so that both can be folded and put together through a connecting portion. The holding members are provided on the inside thereof with opposed lead wire insertion recesses mounting legs for mounting the holder to a printed circuit board project downwardly from the lower end surface of either or both of the holding members. Elastic tongue portions for elastically holding lead wire are formed from a part of the wall portions of the lead wire insertion recesses. Narrow recesses are disposed on the lower end surface and extend from the insertion recesses, so that the insertion end of each lead wire is restricted when its coated end abuts against with the narrow portions. It is thereby possible to let downwardly projecting cores of the lead wires have a uniform projecting length.

Abstract: An electric wire bundle clamp having a mounting base, an elastic curved member provided on the mounting base so as to be integral at one end thereof with the mounting base and open at the other end, and a retaining portion formed on the mounting base for retaining the open end of the elastic curved member, in which the open end of the elastic curved member is bent outwards elastically deformably to form a bent portion with a stepped retaining projection formed in the vicinity thereof and a part of the bent end portion is used as a clamp operating piece, while on the mounting base are provided at least two projections which are spaced from each other so that the bent portion of the open end of the elastic curved member can be inserted therebetween, and on the inner surface of an outside one of the projections on the mounting base is formed a retaining projection capable of engaging the above retaining projection formed in the vicinity of the bent portion.

Abstract: A securing unit for mounting a board such as a wiring board or a printed circuit board between securing members formed thereon on the front side. At least one detent member is formed on the rear side of the securing unit so as to be insertable into a mounting hole formed on a fixing plate such as a chassis so as to secure or fix the securing unit. The securing unit comprises a bottom plate, at least one opposed wall formed on the front surface of the bottom plate, at least one holding member formed on the front surface of the bottom plate and located opposite to the opposed wall, and at least one detent member formed on the rear side of the bottom plate so as to resiliently fix the securing unit on the chassis. At least one detent projection is formed on any one of the opposed wall, the holding member, or both the opposed wall and the holding member, respectively, so as to prevent or stop the movement or shift of the board to be inserted.

Abstract: A cord bushing including a bushing body, the bushing body having a head portion permitting insertion therethrough of a cord, a trunk portion contiguous to the head portion and having an uneven inner surface, and a cord protecting portion contiguous to the trunk portion for protecting the cord inserted therethrough, the head portion having a fitting notched portion formed therein, and the cord protecting portion comprising plural rings each having a cord insertion hole and interconnected by flexible connections; a cord holding member capable of being engaged with and disengaged from the fitting notched part of the head portion and having an uneven inner surface which can hold the inserted cord in corporation with an uneven inner surface of the head portion; and expansible elastic retaining portions formed integrally with the head portion by notching part of the head portion in the vicinity of the said fitting notched part, the portion except the base end of each of the elastic retaining portions being cut away

Abstract: In a cable clamp wherein both ends of a resilient plastic band are combined into a ring and cables are attached to a base and fixed, an engaging projection of suggital shape is provided near the ring end at one end portion of the band and directed to surface of other end portion, a hole through which the engaging projection passes is provided on surface of other end portion which is bent in direction of the engaging projection, and the engaging projection is forced through the through hole into an attaching hole provided on the base, thereby the cables are bundled and fixed on the base. The cable clamp can be fixed to the base readily in single finger motion and does not become shaky on the base.

Abstract: A cable fixing device which is constructed by superposing between an outer housing (1) and an inner housing (7) both of which can be fitted with each other by screwing, a hanging bell-shaped packing (14) having an inner hole, a guiding ring (19) having a guiding hole, and a tightening ring (20) having a plurality of flexible fins (21) reclining in the inward direction, and which is adapted for clamping an inserted cable with the flexible fins (21) of the tightening ring (20) by resiliently contacting the hanging bell-shaped packing (14) with the outer periphery of said cable and screwing the inner housing (7) into the outer housing (1). By the water protecting effect of the hanging bell-shaped packing (14) and the fixing effect of the tightening ring, it can prevent the penetration of water from the outside and simultaneously can securely fix cables of various diameters without changing the parts.

Abstract: A spacer having an upper substrate at the center of which a coupling hole is formed, a lower substrate which is provided opposite to the upper substrate, and a plurality of support members bridging between the upper and the lower substrates so as to retain a space therebetween in which the mechanical strength against the loads applied in the horizontal direction as well as in the direction of twisting is extremely large, thus enabling the spacer according to the present invention to resist failure even if these large loads are applied thereto unlike the prior art spacers and thus obtaining a secured snap-fitting as well as thus making possibility of the spacer coming off from the wiring board difficult.

Abstract: A small press or cutting die assembly includes a small prime mover and suitable reduction gearing for driving an eccentric cam. A rockable lever bears on the cam either directly or through intermediate means, the lever being used to drive the pressing or cutting die assembly which is connected through shafts to the rocking lever and a stationary reaction member, respectively.

Abstract: In a fastener of the invention, a base is connected to an attachment mechanism, support element having pushing planes are connected to the base through arms slanted upwards from the base, and surface of a board is pushed by pushing planes by means of resilient deformation of the support elements, thereby the board is fixed above a chassis spaced by a given distance without interfering with other electronic parts on the chassis.

Abstract: In a cable clamp wherein both ends of a resilient plastic band are combined into a ring and cables are attached to a base and fixed, an engaging projection of wedge shape is provided near the ring end at one end portion of the band and directed to a surface of other end portion. A hole through which the engaging projection passes is provided on a surface of the other end portion which is bent in direction of the engaging projection, and the engaging projection is forced through the through hole into an attaching hole provided on the base, thereby the cables are bundled and fixed on the base. The cable clamp can be fixed to the base readily in single finger motion and does not become shaky on the base.

Abstract: A clamp for a bundle of cables has a resilient plastic base (11), a C-shaped resilient arm (12) integrally formed with the surface of the base and having a clamp operating portion (13) projecting outward, a guide portion (21) provided around an escape hole (17) on the base (11) so as to oppose to and meet with a free end (14) of the C-shaped resilient arm, and an engaging portion (23) provided opposite to the guide portion (21) with an inserting groove (22) therebetween and having an inclined surface (24) supported by a thin support wall (26), a claw part (25) connected to the lower end of the inclined surface and a release operating portion (27) projecting outward, the C-shaped resilient arm (12) being provided with a plurality of ratchet-shaped projections (16) in tiers on the outer surface near the free end (14) except both edges (15) thereof, the clamp being adapted for guiding the free end (14) into the inserting groove (22) by the inclined wall (18) of the guide portion (21) and the inclined surface (24

Abstract: A fixture apparatus for a string retainer for securely fixing a height adjustable, string retainer by holding the string retainer between a fixing bolt and an adjusting bolt and keeping them in contact with the upper and the lower surfaces of the retainer and securing these bolts into an embedded nut having two female threads corresponding to respective bolts.

Abstract: A guitar bridge provided with a saddle which is slidable on stepped elements mounted on the main body by the revolution of an adjusting screw. The saddle consists of two members--a string-receiving portion and a holding portion, and a screw means for integrally connecting the two members, the lower surface of both side ends of the string-receiving portion being engaged with the stepped elements mounted on the screw means.

Abstract: An improved tire-slip preventing device consisting of a plurality of cross belts arranged across a pair of parallel cords in the form of a ladder is constructed so that one end of every other cross belt can be detached from the associated cord. The detachable end of every other cross belt is attached to the associated cord after the device has been wrapped about the tire, whereby a very tight fit between the tire and the device can be easily obtained. The last cross belt at one end is made detachable or otherwise one of the cords is provided at an intermediate portion thereof with a separable link, thus permitting the device to be wrapped about the tire without raising the vehicle or driving it onto the device.

Abstract: A tire-slip preventing device or "chain" for a vehicle tire comprise a ladder-like arrangement of cross belts attached to two parallel cords. The belts and cords are made from an easily deformable material so that the device may be wrapped around a tire. Rotatable discs are mounted at each end of each cross belt between the cross belts and the side walls of the tire to reduce wear on the side walls as the belts move relative thereto. The cross belts may be permanently attached to both parallel cords, or permanently attached at one end to one cord and detachably attached at the other end to the other cord.