Abstract: A housing assembly for a portable electronic device includes a first body, a second body, a first engaging member, a first resilient member and a first housing. The first body has a first space. The second body is installed to the first body and has a first release hole. The first engaging member is movably located in the first space. The first engaging member has at least one first engaging portion. The first resilient member provides a force to the first engaging member to orient the first engaging member toward the first release hole. The first housing is connected to the second body and has at least one first contact portion. When assembling, the first contact portion contacts the first engaging portion. The force of the first resilient member applied to the first engaging member to firmly connect the first housing to the second body.

Abstract: A housing assembly for a portable electronic device includes a first body, a second body, a first engaging member, a first resilient member and a first housing. The first body has a first space. The second body is installed to the first body and has a first release hole. The first engaging member is movably located in the first space. The first engaging member has at least one first engaging portion. The first resilient member provides a force to the first engaging member to orient the first engaging member toward the first release hole. The first housing is connected to the second body and has at least one first contact portion. When assembling, the first contact portion contacts the first engaging portion. The force of the first resilient member applied to the first engaging member to firmly connect the first housing to the second body.

Abstract: A securing device for a portable electronic device includes a body and a case is mounted to the body. First and second engaging members are respectively connected to two sides of the body. First and second locking members are respectively and movably connected to the two sides of the body and located corresponding to the first and second engaging members. The first locking member includes a first stop and a first recess, and the second locking member includes a second stop and a second recess. The first/second engaging member is stopped by the first/second stop and is movable in the first/second recess to unlock the secured status. A connection member is pivotably connected to the first and second locking members and is movable by operation of the control member to shift the first and second locking members to allow the first and second engaging members to unlock.

Abstract: A locking device includes a body, a first part, an engaging assembly, a link and a locking member. The body has an installation area and the engaging assembly is installed in the installation area and includes a first engaging member and a first resilient member which provides a force to the first engaging member to connect the engaging member to the first part. The link is movably located in the installation area to push the first engaging member to move relative to the first part to release the locked status. The locking member is located in the installation area and has a first recess and an operation end. When the first recess is located corresponding to the first engaging member, the first engaging member is movable in the first recess. When the first recess is located away from the first engaging member, the first part is secured to the body.

Abstract: An operation device for controlling sliding cover of portable electronic product includes first, second and third magnetic members, a transmission unit and an operation unit. The third magnetic member is connected to the transmission unit and includes first and second magnetic polarities. The operation unit drives the transmission unit and the two magnetic members are fixed to the first and second positions of the sliding cover. When the operation unit is operated, the third magnetic member is rotated so that the first magnetic polarity of the third magnetic member is impulsive to the first magnetic member to open the sliding cover, or the first magnetic polarity of the third magnetic member is impulsive to the second magnetic member to close the sliding cover.

Abstract: A case assembly for electronic appliance includes a first case having a plurality of engaging members and each engaging member includes two clamping protrusions. Each clamping protrusion includes a supporting portion and a protruding portion. A space is defined between the two clamping protrusions. A second case includes multiple ports and each port has a shoulder defined in an inside thereof and the shoulder is located corresponding to the protruding portions of the clamping protrusions. Multiple positioning members each have an insertion portion and a head. A transverse width of the opening of the space is smaller than a width of the insertion portion. When the insertion portion of each of the positioning members is inserted into the space corresponding thereto, the clamping protrusions are expanded outward by the positioning member, and the protruding portions are engaged on the shoulder of the second case.

Abstract: A locking device includes a body, a first part, an engaging assembly, a link and a locking member. The body has an installation area and the engaging assembly is installed in the installation area and includes a first engaging member and a first resilient member which provides a force to the first engaging member to connect the engaging member to the first part. The link is movably located in the installation area to push the first engaging member to move relative to the first part to release the locked status. The locking member is located in the installation area and has a first recess and an operation end. When the first recess is located corresponding to the first engaging member, the first engaging member is movable in the first recess. When the first recess is located away from the first engaging member, the first part is secured to the body.

Abstract: A housing assembly includes a first housing having first positioning holes, a second housing having second positioning holes, and an assembly unit connected between the first and second housings and including two assembly parts. Multiple engaging devices each include a first engaging member and a second engaging member. The engaging devices are connected to the first and second positioning holes by first and second resilient members. An operation device is connected to the engaging devices and includes first and second release members which are respectively connected to the assembly parts. A link is connected to the assembly unit and connected with the first and second release members. An operation member is connected to the link to move the first or second release members of each engaging device and disengage the first and second release members from the first or second positioning holes of the first or second housings.

Abstract: A securing device for a portable electronic device includes a body and a case is mounted to the body. First and second engaging members are respectively connected to two sides of the body. First and second locking members are respectively and movably connected to the two sides of the body and located corresponding to the first and second engaging members. The first locking member includes a first stop and a first recess, and the second locking member includes a second stop and a second recess. The first/second engaging member is stopped by the first/second stop and is movable in the first/second recess to unlock the secured status. A connection member is pivotably connected to the first and second locking members and is movable by operation of the control member to shift the first and second locking members to allow the first and second engaging members to unlock.

Abstract: A housing assembly for an electronic device includes a mounting assembly, an engaging assembly, a first housing, and a guiding member. The mounting assembly includes an accommodation room having an opening therein. The engaging assembly includes a first elastic member and a first engaging member mounted in the accommodation room. The first engaging member includes a first force receiving portion and a first engaging portion corresponding to the opening. The first housing is coupled with the mounting assembly and includes an assembling portion to be connected with the first engaging portion. The guiding member has a first guiding portion corresponding to the first force receiving portion. When the first guiding portion of the guiding member is applied by a force to move the first force receiving portion of the first engaging member to a position, the first engaging member is disengaged from the assembling portion of the first housing.

Abstract: A highway vehicle towing system includes a light railroad track embedded in a highway and capable of transmitting electricity from a power supply plant, and a towing tractor movable along the light railroad track to tow a car. The owing tractor has multiple pairs of metal wheels movably supported on the light railroad track, a motor, electrical wires connecting the metal wheels to the motor for transmitting electricity from the light railroad track to the motor, a transmission shaft coupled to and rotatable by the motor, and a differential mechanism coupled between the transmission shaft and the metal wheels for enabling the metal wheels to be rotated along the light railroad track by the motor.

Abstract: A highway vehicle towing system includes a light railroad track embedded in a highway and capable of transmitting electricity from a power supply plant, and a towing tractor movable along the light railroad track to tow a car. The owing tractor has multiple pairs of metal wheels movably supported on the light railroad track, a motor, electrical wires connecting the metal wheels to the motor for transmitting electricity from the light railroad track to the motor, a transmission shaft coupled to and rotatable by the motor, and a differential mechanism coupled between the transmission shaft and the metal wheels for enabling the metal wheels to be rotated along the light railroad track by the motor.

Abstract: An operation device for controlling sliding cover of portable electronic product includes first, second and third magnetic members, a transmission unit and an operation unit. The third magnetic member is connected to the transmission unit and includes first and second magnetic polarities. The operation unit drives the transmission unit and the two magnetic members are fixed to the first and second positions of the sliding cover. When the operation unit is operated, the third magnetic member is rotated so that the first magnetic polarity of the third magnetic member is impulsive to the first magnetic member to open the sliding cover, or the first magnetic polarity of the third magnetic member is impulsive to the second magnetic member to close the sliding cover.

Abstract: A clip system for use with a belt is disclosed. The clip system includes a base member having a first surface and a second surface opposing to the first surface on which a first engagement portion is formed. The clip system also includes a cover body, which is pivot-jointed with one end of the base member and has apertures. A second engagement portion opposing to the first engagement portion is formed on the base member, allowing the clip system to be attached to the belt when the cover body is buckled up with the base member. In addition, the clip system has a holder with protrusions for being attached to the apertures of the cover body. By using the above-mentioned clip system with the modular design, the clip system and change accessory are assembled and disassembled in an efficient way.