BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is an exploded perspective of the embodiment of the present invention;
FIG. 2 is an assembly appearance of FIG. 1;
FIG. 3 is a cross-section view of FIG. 2;
FIG. 4 is a cross-section view showing the combination status about the turning rod and the moving part of the present invention;
FIG. 5 shows the turning rod rotated to another position referring to FIG. 4;
FIG. 6 is a cross-section view showing another embodiment of the moving part of the present invention;
FIG. 7 shows the turning rod rotated to another position referring to FIG. 6;
FIG. 8 shows another embodiment of the turning rod of the present invention;
FIG. 9 shows another embodiment of the penetration and the turning rod of the present invention;
FIG. 10 is a partial assembly view of FIG. 9;
FIG. 11 shows another embodiment of the moving part of the present invention;
FIG. 12 shows another embodiment of the moving part and the driving part of the present invention;
FIG. 13 shows another embodiment of the moving part of the present invention;
FIG. 14 shows another embodiment of the turning rod of the present invention;
FIG. 15 shows another embodiment of the turning rod of the present invention;
FIG. 16 shows another embodiment of the driving part of the present invention;
FIG. 17 shows another embodiment of the driving part of the present invention, and
FIG. 18 shows another embodiment of the holding rod and the driving part of the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
As shown on FIG. 1, the F figure wrench of this invention comprises a holding rod 10, a moving part 30, a turning rod 40 and a driving part 20.
The holding rod 10 has a primary end and a secondary end, and a longitudinal axis extending from the primary end along the holding rod to the secondary end. The primary end of the holding rod 10 is concaved as a guide hole 11 extending along the longitudinal axis, and said end has two lugs 130 extending outwardly from the both sides of the guide hole 11, the lug holes 13 of the two lugs 130 are used as pivot holes for installation of pivot 24. The primary end of the holding rod 10 has a penetration 12 intersecting the guide hole 11.
The moving part 30 has a primary end, a secondary end and a puncture 32; the primary end will be installed inside the guide hole 11, the puncture 32 is concentric with the penetration 12 on the holding rod 10, and at least one clutch part 31 is implemented on the secondary end of the moving part 30.
The turning rod 40 has a primary end and a secondary end, the secondary end will be installed inside the penetration 12, the primary end will be presented outside with a knob 43, at least one side on the periphery of the turning rod 40 implements two eccentric cams 41/42.
The driving part 20 has a primary end, a secondary end and a second pivot hole 21 concentric with the lug holes 13 of the two lugs 130. The pivot 24 is installed in the pivot hole 21 to be pivot connected with the holding rod 10. The primary end of the driving part 20 has at least one match part 22 that matches with the clutch part 31 of the moving part 30.
In the embodiment as shown on FIG. 1, the secondary end of the driving part 20 implements a driving head 23 to drive a work piece. The secondary end of the holding rod 10 extends an appropriate length handle 100.
In the embodiment as shown on FIG. 1, the guide hole 11 intersects vertically with the penetration 12, and the axis of the guide hole 11 does not intersect with the axis of the penetration 12.
In the embodiment as shown on FIG. 1, a ring groove 122 with larger radius is implemented inside the penetration 12 close to outside of the penetration, wherein a lock ring 402 is embedded therein to retain the turning rod 40, wherein another ring groove is implemented on the periphery of the turning rod 40 to accommodate the inside of the lock ring 402, thereof said turning rod will be securely retained in the penetration.
In the embodiment as shown on FIG. 1, the shape of the driving head 23 on the driving part 20 is a quadrangle for being adopted with a sleeve, thereof a work piece can be fitted.
In the embodiment as shown on FIG. 1, the driving part 20 is equipped with plurality of match parts 22 in a form of gear teeth around the axis of the pivot hole 21; the moving part 30 is equipped with a plurality of clutch parts 31 in a form of gear teeth matched with the match parts 22, thereof the driving part 20 is able to be bent to multiple angles or locked in position relatively to the holding rod 10.
In the embodiment as shown on FIGS. 1 to 3, the guide hole 11 intersects vertically with the penetration 12, in which the turning rod 40 is installed penetrating through the puncture 32 of the moving part 30 and as well the guide hole 11.
In the embodiment as shown on FIGS. 1, 4 and 5, the inner wall of the puncture 32 in the moving part 30 has the push fronts 321/322 at the locations close to the primary end and the secondary end of the moving part 30 to take the push force from the eccentric cams 41/42 on the turning rod 40; furthermore, a friction surface 320 is formed in-between the push fronts 321/322 on the inner wall of the puncture 32 for the purpose of locking the eccentric cams 41/42 in position with friction.
In the embodiment as shown on FIGS. 6 and 7, concavities 3211/3221 are each implemented on the push fronts 321/322 for the purpose of locking the eccentric cam 41 in position to avoid arbitrary rotating of the in-positioned turning rod 40.
In the embodiment as shown on FIG. 1, two said eccentric cams 41/42 each implementing on the two sides of the turning rod 40 are located on the arc of the rotating axis of the turning rod 40.
In the embodiment as shown on FIG. 1, the primary side of the moving part 30 connects a primary side of a resilient object 50, and a secondary side of said resilient object contacts with the bottom of the guide hole 11.
In the embodiment as shown on FIG. 8, the knob 43 is larger than the turning rod 40; with recessed penetration 12 on the holding rod 10, the turning rod 40 and the knob 43 are to be accommodated into.
In the embodiment as shown on FIGS. 9 and 10, a cavity 124 is implemented on the wall inside of the penetration 12 of the holding rod 10, in which a resilient object 61 and a bead 60 are installed in order. Two click grooves 43/44 implementing on the periphery of the turning rod 40 relatively in position to the bead 60 are located on the arc of the rotating axis of the turning rod 40.
In the embodiment as shown on FIG. 11, the puncture 32 of the moving part 30 is open on one side that shaped as a U when looking at one end of the puncture 32.
In the embodiment as shown on FIG. 12, a cavity 301 is implemented on the secondary end of the moving part 30, in which a bead is installed to form a match part 31, a clutch part 22 of the driving part 20 is a concavity for said bead to be accommodated. Furthermore, the driving part 20 has plurality of clutch parts 22, each said clutch part is a concavity for accommodating the bead. The plurality of clutch parts 22 is set up around the axis of the pivot hole 21, with which the bead to be accommodated, then the driving part 20 is able to be bent to multiple angles or locked in position relatively to the holding rod 10.
In the embodiment as shown on FIG. 13, the moving part 30 comprises a primary unit 300 and a secondary unit 311 that are tied together with a bolt 312. The said puncture 32 is implemented on the primary unit 300, while the said match part 31 is implemented on the secondary unit 311.
In the embodiment as shown on FIG. 14, insert holes 404/405 are implemented on the periphery of the turning rod 40, in which insert blocks are fitted to form the eccentric cams 41/42.
In the embodiment as shown on FIG. 15, insert holes 404/405 are implemented on the turning rod 40, in which resilient objects 421 and insert blocks are fitted to form the eccentric cams 41/42 which are positioned on the periphery of the turning rod.
In one embodiment of the invention, the driving head 23 of the driving part 20 can be a ratchet driving head. In the embodiment as shown on FIG. 16, the ratchet driving head includes a rotator 230 that a sleeve would be fitted onto. In the embodiment as shown on FIG. 17, the ratchet driving head includes a sleeve 231 that a work piece would be fitted into.
In the embodiment as shown on FIG. 18, the secondary end of the holding rod 10 is a quadrangle that a sleeve would be fitted onto, the secondary end of the driving part 20 extends a handle 200 in certain length.
While we have shown and described in accordance with the present invention, it should be clear to those skilled in the art that further embodiments may be made without departing from the scope of the present invention.
Patent Application
20070283790
