Patent Application
20050060860
1. Field of the Invention
This invention relates to a tire valve puller, particularly to one having a pulling rod and a joint, wherein the pulling rod is provided with an open slot, a plastic covering support and a bent part, the plastic covering support provided with a plurality of engagement grooves disposed thereon; the joint is pivoted above the open slot of the pulling rod and covered outside around by a sleeve, whereby a user may firstly push the sleeve downwards to make the joint connected with a tire valve so as to clamp the tire valve firmly, secondly make one of the plurality of engagement grooves of the covering support securely engaged with a flange of a wheel rim of which engaging location can be functioned as a fulcrum, and finally hold the grip of the pulling rod with one hand to make the pulling rod tightly pressed against the fulcrum and further apply force in a direction toward a tire so as to pull the tire valve outwardly to be protruded out of the wheel rim without wearing external threads of the tire valve or deforming the tire valve to influence its using effect, and without damaging the flange of the wheel rim under improper force of the pulling rod, very convenient in operation.
2. Description of the Prior Art
Generally speaking, when a vehicle tire gets flat, a tire valve will be withdrawn into a wheel rim, thus unable to put air into the tire. In the situation, a tool for pulling the tire valve out outwardly to be protruded out of the wheel rim is required. However, in pulling the tire valve, many conventional known tools often damage external threads of the tire valve, or even worse, deform the tire valve under improper force so that a tire inflator is hard to put air into the tire smoothly, and a tire valve cap is also unable to be firmly screwed with the tire valve and thus fallen off.
The main purpose of the present invention is to provide a tire valve puller capable of conveniently and securely clamping a tire valve to pull the tire valve outwardly to be protruded out of a wheel rim without damaging the tire valve.
One primary feature of the present invention is to provide a tire valve puller mainly including:
One another feature of the present invention is to provide a tire valve puller mainly including:
One further feature of the present invention is to provide a tire valve puller mainly including:
This invention will be better understood by referring to the accompanying drawings, wherein:
A preferred embodiment of a tire valve puller in the present invention, as shown in
The pulling rod 1 has one end provided with an open slot 10 disposed thereon, two through holes 11 oppositely disposed on a circumferential wall thereof in communication with the open slot 10, a plastic covering support 13 disposed thereon, a bent part 15 disposed below the plastic covering support 13 and bent at a predetermined angle, and a grip 16 disposed at an end portion of the bent part 15. The plastic covering support 13 is provided with a plurality of curved engagement grooves 14 disposed thereon. A pivot pin 12 is capable of being passed through the two through holes 11.
The joint 3 capable of being pivoted above the open slot 10 of the pulling rod 1 has a connecting rod 30 disposed at a lower end thereof, an insertion bore 32 disposed therein, two retaining holes 33 oppositely disposed on a circumferential wall thereof, two slots 34 oppositely disposed on the circumferential wall thereof in communication with the insertion bore 32, and an annular groove 35 disposed adjacent an upper end of an outer surface of the circumferential wall thereof. The connecting rod 30 is provided with a through hole 31 disposed thereon for being passed through by the pivot pin 12.
Two elastic clip members 4 are capable of being oppositely disposed on the circumferential wall of the joint 3, and each has a retaining part 40 disposed at a lower end thereof and a curved engagement head 41 disposed at an upper end thereof.
The spring 5 is capable of being mounted around the joint 3.
The sleeve 6 capable of being covered outside around the joint 3 has a stop edge 60 disposed at an upper portion of an inner surface thereof and a recessed chamber 61 disposed at a lower portion of the inner surface thereof. The inner surface of the sleeve 6 is designed to be a tapered plane 62 provided with a top wider than a bottom.
The positioning member 7 is capable of being engaged with the annular groove 35 of the joint 3.
In assembling, referring to
Secondly, mount the spring 5 around the joint 3, and then cover the sleeve 6 outside around the joint 3 to make the spring 5 accommodated in the recessed chamber 61 of the sleeve 6 and to make the two elastic clip members 4 located inside the tapered plane 62 of the sleeve 6, by which the two elastic clip members 4 is confined by the tapered plane 62 of the sleeve 6 to make the curved engagement heads 41 of the two elastic clip members 4 further extended into the insertion bore 32 of the joint 3.
Thirdly, engage the positioning member 7 with the annular groove 35 of the joint 3 so as to affix the sleeve 6 outside around the joint 3 in place.
Finally, place the connecting rod 30 of the joint 3 into the open slot 10 of the pulling rod 1 with the thought hole 31 of the connecting rod 30 aligned with the two through holes 11 of the pulling rod 1, and then pass the pivot pin 12 through the two through holes 11 of the pulling rod 1 as well as the though hole 31 of the connecting rod 30 so as to pivot the joint 3 with the pulling rod 1, by which a whole assemblage of the tire valve puller of the present invention is completed.
In using, referring to
Secondly, put the sleeve 6 away from the hands so that the sleeve 6 is immediately moved back to its initial position under the resilience of the spring 5 to make the tapered plane 62 of the sleeve 6 confine the two elastic clip members 4 therein to force the engagement heads 41 of the two elastic clip members 4 to be extended into the insertion bore 32 of the joint 3 and engaged with external threads 80 of the tire valve 8 so as to clamp the tire valve 8 firmly.
Finally, make one of the plurality of curved engagement grooves 14 of the covering support 13 securely engaged with a flange 90 of the wheel rim 9 of which engaging location can be functioned as a fulcrum, and then hold the grip 16 of the pulling rod 1 with one hand to make the pulling rod 1 tightly pressed against the fulcrum and further apply force in a direction toward a tire (not numbered) so as to pull the tire valve 8 outwardly to be protruded out of the wheel rim 9 without wearing the external threads 80 of the tire valve 8 or deforming the tire valve 8 to influence its using effect, very convenient in operation. Moreover, since the covering support 13 is made of plastic material, the pulling rod 1 will not damage the flange 90 of the wheel rim 9 when the pulling rod 1 is tightly pressed against the fulcrum in pulling the tire valve 8 outwardly.
After the tire valve 8 is pulled outwardly, only to push the sleeve 6 downwards to press the spring 5 in a compressed status again. At this time, the two elastic clip members 4 will get free of the confinement of the tapered plane 62 of the sleeve 6 and stretch outwardly under their own elasticity to make the engagement heads 41 of the two elastic clip members 4 moved out of the insertion bore 32 of the joint 3 without being engaged with the external threads 80 pf the tire valve 8, thereby allowing the joint 3 to be removed from the tire valve 8, very convenient in operation.
While the preferred embodiment of the invention has been described above, it will be recognized and understood that various modifications may be made therein and the appended claims are intended to cover all such modifications that may fall within the spirit and scope of the invention.
