Abstract: A securing device for securing two boards firmly to one another with a predetermined distance therebetween. The securing device is integrally formed of resin and comprises a resilient reverse retention member to support a first board, a rectangular linkage member, resilient legs provided on both sides of the linkage member to engage the first board, and a support base to support a second board thereon. Characteristically provided with recesses at the foot of both widthwide sides of the linkage member, the securing device of this invention is enabled to have the advantages of both having a rectangular-shaped linkage member and an improvement in strength.

Abstract: A board fastener is provided to detachably secure and support one or more boards such as printed circuit boards in position spaced apart from a chassis or from each other. Furthermore, the board fastener can securely support a second board to prevent the same from slipping out of the fastener. The board fastener includes a spring bar and a thrust-up member for pushing the mounted second board up, thus allowing the second board to be easily removed from the fastener.

Abstract: A withdrawal apparatus for card like structures includes a body having two rigidly connected parallel sides defining a channel therebetween. A movable member is pivotally connected to the body via a flexible hinge and supports a pin at the end thereof opposite the hinge. Pivoting of the movable member about the hinge causes the pin to enter an aperture in the sides of the body and extending through the channel and any card like structure within the channel. A retaining member on the movable member cooperates with a retaining portion of the body to retain the pin within the aperture.

Abstract: In a synthetic resin spacer having two mounting portion (1, 2) for connecting plates (10A, 15) in spaced and parallel relation to each other, one mounting portion (1) is formed integrally with the other mounting portion (2) pivotably through a hinge portion (3); the other mounting portion (2) is provided with a vertical frame (11) which is perpendicular to the plate (10A) connected to the mounting portion (2); and the vertical frame (11) is provided on the side of the hinge portion (3) with an engaging projection (11a) which is engageble with and disengageable from a side edge of the plate (15) connected to one mounting portion (1). With such construction, the two plates can be connected firmly, and the repair or maintenance and inspection of electronic parts on the plates can be done extremely easily.

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 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 hinge for swingably coupling at least different plate members, which comprises a first mounting portion having first detent protrusions for engaging with each corresponding hole formed on one of said plate member, a second mounting portion having at least a second detent protrusion for engaging with other hole formed on the other plate member, a thin flexible portion between the first and second mounting portion and integrally formed with the two mounting portions so as to bend the second mounting portion, at least two groups of ribs provided at said first and second mounting portions respectively, and engagement projections formed on the first mounting portion and capable of being engaged with the edge of one of said plate members. With this construction, the detent or engagement strength as well as the strength of the hinge unit itself can be increased, while easy access to the plate member such as a printed circuit board within an electric apparatus can be realized.