Other

C.m. Products, Inc.

Chi Yin Mak

Ka Yin Yik

Yok Key Mak

A domino-type torque generator includes a base member, and a plurality of toppling members pivotally connected to the base member. Each toppling member is pivotable from an upright position to an inclined position, or from the inclined position directly to an opposite inclined position, about a torque shaft extending transversely through a lower end portion of each toppling member. One end of each torque shaft is provided with a pinion. A first differential gear is connected to the pinions to accumulate torques applied on the torque shafts by toppling of the toppling members. A rotating cage of the first differential gear is the output, and is directly or indirectly connected to one of the side gears of the next differential gear, which is used to accumulate output torque from the first differential gear. A drive mechanism is configured to repeatedly drive the toppling members to topple, thereby continuously generating torques.

Domino-type torque generator

The present application relates to a quick string-tying device including a first case body provided with a first bottom portion, a first open end, and a first sidewall extending and formed from the first bottom portion towards the first open end, the first bottom portion and the first sidewall forming a first accommodation space, the first bottom portion being provided with a first string-passing opening for two free ends of a string to pass therethrough, a slit formed on the first sidewall and extending from the first open end towards the first bottom portion, the slit being used to clamp the two free ends of the string which enter into the slit. The quick string-tying device is suitable for use on various items that require tying of a string, and can achieve quick tying and loosening of a string. A method for tying a string is also disclosed.

Quick string-tying device and method

The present disclosure relates to a track zipper and a connecting structure having a track zipper. The track zipper includes a first track, a second track, and a zipper core connecting the first and second tracks. The first track and a first side of the zipper core are provided with a first slidably connecting structure. The second track and a second side of the zipper core are provided with a second slidably connecting structure. When the track zipper is in a closed position, the zipper core is positioned between the first and second tracks and holds the first and second tracks together. The track zipper of the present disclosure is advantageous in that it can prevent foreign material from being caught by the zipper, and that it has a much stronger bearing capacity.

Track zipper and connecting structure with a track zipper

A double action hinge unit is disclosed which comprises a first base element, a second base element and at least two connection elements. Each base element has at least two upward extensions. Each connection element is hingedly connected with an extension of the first base element and an extension of the second base element. The double action hinge unit is changeable among at least three combination states. When the double action hinge unit is in a second combination state, the at least two connection elements are arranged side by side, such that the double action hinge unit is rotatable about a rotational axis at one side into a first combination state and is also rotatable about a rotational axis at the other side into a third combination state.

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Hong Kong, China

Chi Yin Mak