The present invention relates to a hooking tool structure, a hooking tool attached with a shackle; and in particular to a shackle of a two-piece construction, and disposed with an interacting switch so as to drive the shackle to act.
For such hooking tools, many related products at present have an interacting switch A2 further mounted on the hooking tools, so that any required movement of the movable member may be achieved by driving the interacting switch.
For example, a hooking tool combined with a lock mechanism is disclosed in U.S. Pat. No. 6,381,997, Chen etc. The hooking tool is provided with a rotary block 60 and an unlock key 50 in an interactive relationship. When an external force is applied to the press face 52 of the unlock key 50, the rotary block 60 is driven thereby to rotate synchronously, so that the lock portion 61 of the rotary block 60 forms a hooking notch with respect to the shackle 35.
It can be understood that the rotary block 60 and the unlock key 50 is provided with an interaction relationship, for the purpose that the rotary block 60 may change its position through the interaction with the unlock key 50. But in different states of use, it is possible for its user to successfully hook onto the hooked object by forming a hooking notch as the lock portion 61 can be directly pressed onto the hooked object. However, limited by the interaction relationship, even if the rotate block 60 is driven directly by a force, the unlock key 50 may also be interacted synchronously with the rotary block 60 which is moved by the force. In other words, in order to push the lock portion 61 forward, only if the applied force is sufficient to move the rotate block 60 and the unlock key 50 together, the displacement of the lock portion 61 may be achieved.
The main objective of the present invention is to provide a hooking tool structure, comprising a main body interconnected with a shackle, a press member pivotally connected to the main body and an elastic biasing member. The said shackle comprises a fastener buckling with a movable member, so as to form an enclosed space altogether with the main body; when the movable member is directly subject to a force, or interacts with the press member as the force is applied to the press member, one end of the movable member is disengaged from one end of the fastener and is pushed to a position where a hooking notch is formed. The present invention is characterized in that the press member and the movable member are arranged in an unilateral pushing interaction, i.e. as the press member is pushed down by a force, it will push the movable member as a result; however, when the movable member is subject to a pushing force directly, the press member will remain unmoved or stationary. Comparing to the interacting switch disclosed in the U.S. '997 Patent, the movable member of the present invention is laborsaving as driven directly by a force.
With reference to the drawings, the technical contents and the elements disclosed in the present invention are illustrated as follows:
Two axles 11, 12 are disposed on the main body 1 for the movable member 22 and the press member 3 to be telescoped into their positioning holes 221, 31 respectively, so that the movable member 22 and the press member 2 may rotate about the axles 11, 12 with respect to the main body 1.
The movable member 22 is provided with an extension rod 222. The said extension rod 222 may be moved to a position through rotation, where it could be disengaged from one end of the fastener 21, where a hooking notch 51 is formed. As an elastic force is applied to the movable member 22 by the elastic biasing member 4, the extension rod 222 shall be kept in position while maintaining the enclosed space 5 as no force is applied to the moveable part 22.
In addition, the moveable part 22 is provided with a thrust face 223, which acts as a stress face for accepting the force from the press member 3; and the press member 3 is provided with a stress portion 32 apart from the shackle 2, and an actuation portion 33 against the thrust face 223. Thereby, while the stress portion 32 is moved by an external force and thus drives the actuation portion 33 to rotate, the thrust face 223 may also be moved by the actuation portion 33, and thus pushing the movable member 22 synchronously.
As shown in
In view of the above, the interacting switch of the present invention, consisting of the movable member 22 and the press member 3, is of a single-interaction mode. In brief, the press member 3 may drive the movable member 22 to move together, but if the movable member 22 itself is moved by a direct force, the press member 3 shall remain unmoved or stationary.
In reference to
The above mentioned are only the preferred embodiments of the present invention, and not intended to limit the scope of the invention. Thus the equivalent varieties and modifications and the like according to the claims of the present invention shall be within the scope contemplated by this invention.
Number | Date | Country | Kind |
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093206136 | Apr 2004 | TW | national |