tensioning device

Abstract

This invention relates to a tensioning device, comprising: a base; a ring seat with a receiving space, the receiving space having a one-way inward ratchet; a rotating wheel with a recess for winding and accommodating a shoelace, the rotating wheel having a locking post, the locking post having a plurality of first transmission teeth around its periphery; a locking member having a locking hole, the locking member having a plurality of elastic locking teeth protruding around its periphery; and a rotating disk fixing the locking member. The rotating disk has a protruding ring portion, the protruding ring portion movably engaging with the locking post, the protruding ring portion having a plurality of second transmission teeth around its periphery. In a first position, the rotating disk and the locking member are engaged unidirectionally with the one-way inward ratchet, and the second transmission teeth are engaged with the first transmission teeth for mutual transmission. In a second position, they are disengaged. This achieves the effects of simplifying components and reducing working time.

Claims

1. A tensioning device, comprising: a base; a ring seat fixed to the base, the ring seat having an accommodating space, the periphery of one side of the accommodating space having an annular one-way inward ratchet; a rotating wheel disposed in the accommodating space, the periphery of the rotating wheel forming a recess for winding and accommodating a shoelace, the side of the rotating wheel away from the base having a protruding locking post, the periphery of the locking post having a plurality of first transmission teeth; a locking member movably disposed within the one-way inward ratchet, the locking member having a through-hole, the periphery of the locking member having a plurality of elastic locking teeth protruding, the locking member being in a first position, the elastic locking teeth engaging unidirectionally with the one-way inward ratchet, such that the locking member rotates unidirectionally relative to the ring seat and cannot rotate in the opposite direction, the locking member being in a second position, the elastic locking teeth disengaging from the one-way inward ratchet; A rotating disk is movably fixed to the ring seat. The rotating disk fixes the locking member. The inner wall of the rotating disk is provided with a protruding ring portion. The protruding ring portion can be inserted into the locking hole and movably engaged with the locking post. The inner edge of the protruding ring portion is provided with a plurality of second transmission teeth. The rotating disk synchronously drives the locking member to the first position. The second transmission teeth mesh with the first transmission teeth and drive each other. The rotating disk synchronously drives the locking member to the second position. The second transmission teeth disengage from the first transmission teeth.

2. As in claim 1, the tensioning device, wherein, A first fixing part is formed on the periphery of the base, and a second fixing part is formed on the periphery of the other side of the accommodating space. The second fixing part and the first fixing part are engaged and fixed to each other.

3. As in claim 1, the tensioning device, wherein, The ring seat has two guide parts protruding from its periphery, and each of the two guide parts has a guide hole, which is used for the two ends of the shoelace to pass through.

4. As in claim 1, the tensioning device, wherein, The recess has two through holes, which allow the two ends of the shoelace to pass through and be secured.

5. The tensioning device as described in claim 1, wherein, The inner edge of the card hole is provided with a first positioning part, and the outer edge of the convex ring is provided with a second positioning part, so as to lock and position with the first positioning part, so that the rotating disk and the locking part can rotate or move up and down synchronously.

6. As in claim 5, the tensioning device, wherein, The first positioning part is composed of a plurality of grooves, and the second positioning part is composed of a plurality of mating protrusions.

7. The tensioning device as described in claim 1, wherein, The unidirectional internal ratchet has a first locking part protruding in a ring shape around its periphery, and the rotating disk has a second locking part formed around its periphery. The second locking part and the first locking part are mutually engaged.

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