A quick release mechanism for a wheel includes a hub and a clip, which interact with a wheel or roller that may or may not be part of the invention per se. The hub is disposable on a drive shaft such that it will rotate with the drive shaft. An optional hub cap is disposable on the wheel and has an opening that is complimentary to the geometry of the hub to allow engagement thereof such that the hub the hub cap rotate together. The clip is disposable on the hub in a closed or an open position so that the hub cap cannot or can be removed from the hub.

A quick release mechanism for a wheel includes a hub and a clip, which interact with a wheel or roller that may or may not be part of the invention per se. The hub is disposable on a drive shaft such that it will rotate with the drive shaft. An optional hub cap is disposable on the wheel and has an opening that is complimentary to the geometry of the hub to allow engagement thereof such that the hub the hub cap rotate together. The clip is disposable on the hub in a closed or an open position so that the hub cap cannot or can be removed from the hub.

Provided is a joint structure which is capable of easily preventing relative positional shifting between two members joined by a screw member, and which has favorable workability. The joint structure joins a first member that is provided with a screw hole in which female screw threading is formed and a second member that can be stacked on the first member, by insertion from the second member side of a screw member that has formed thereon male screw threading which screws into the female screw threading. The joint structure is provided with a protruding part that is provided to the first member and that has formed therein a first through hole that guides the screw member into the screw hole. The second member has a width that is smaller than the width of the protruding part, and has formed therein a second through hole which guides the screw member into the screw hole via the first through hole, and a recessed part which accommodates the protruding part.

A method for joining two objects by anchoring an insert portion provided on a first object in an opening provided on a second object. The anchorage is achieved by liquefaction of a thermoplastic material and interpenetration of the liquefied material and a penetrable material, the two materials being arranged on opposite surfaces of the insert portion and the wall of the opening. During the step of inserting the insert portion in the opening and/or during anchorage a clamping force is applied to opposing surfaces of the second object to prevent the second object from cracking or bulging.

In order to provide a connecting device for connecting two components, which is simple to manufacture and enables a stable and reliable connection of the two components, it is proposed that the connecting device comprises a main body which comprises a receiving channel extending through the main body for accommodating a fixing element, wherein the receiving channel is preferably accessible at one end by way of an insertion opening of the main body and/or preferably at a (further) end by way of a fixing opening of the main body, wherein the main body preferably further comprises an actuating opening that is different from the insertion opening and/or the fixing opening, by way of which in particular the fixing element arranged in the receiving channel is preferably accessible for the actuation thereof.

The present invention provides target devices such as filter units with a plurality of external projection members that project outwardly from the target device and cooperate with apertures in a mounting bracket whereby the target device can be slidably moved from a first position to a second position provided by a lobe of the apertures to couple the target device to a respective support structure using a respective mounting bracket. The mounting bracket can be provided as a plurality of mounting brackets, including a first one attached to the support structure and a first side of a first target device and a second one attached to a second side of the first target device and to a first side of a second target device thereby allowing the first and second target devices to be stacked together to a common support structure.

The present invention provides target devices such as filter units with a plurality of external projection members that project outwardly from the target device and cooperate with apertures in a mounting bracket whereby the target device can be slidably moved from a first position to a second position provided by a lobe of the apertures to couple the target device to a respective support structure using a respective mounting bracket. The mounting bracket can be provided as a plurality of mounting brackets, including a first one attached to the support structure and a first side of a first target device and a second one attached to a second side of the first target device and to a first side of a second target device thereby allowing the first and second target devices to be stacked together to a common support structure.

A method of manufacturing a joined member where joining portions of at least two members are integrally formed with each other by press working thus joining said at least two members, the method comprises an engaging step, an inserting step, and a press working step.

A cable hook for fixing a rebound mat to a trampoline frame by means of two elastic elements and at least one flexible strap element has a housing with four receivers, wherein each elastic element has two free ends, each of which has a clamping element enlarging the periphery of the elastic element. A clamping element is inserted in each receiver. The cable hook has a cable hook body which is closed in the peripheral direction transversely to the fixing direction, wherein in each case two receivers are separated centrally by a receiving cavity in the cable hook body through which a clamping element can be passed. The cable hook has two terminating pieces which can each be inserted in a respective receiving cavity, and each has a cover rounding pointing away from the cable hook housing and oriented towards each other.

A method for joining two objects by anchoring an insert portion provided on one of the objects in an opening provided on the other one of the objects. The anchorage is achieved by liquefaction of a thermoplastic material and interpenetration of the liquefied material and a penetrable material, the two materials being arranged on opposite surfaces of the insert portion and the wall of the opening. Before such liquefaction and interpenetration, an interference fit is established in which such opposite surfaces are pressed against each other, and, for the anchoring, mechanical vibration energy and possibly a shearing force are applied, wherein the shearing force puts a shear stress on the interference fit.