IN THE DRAWINGS
FIG. 1 is an exploded perspective view of the chuck of the present invention;
FIG. 2 is a perspective view showing that the annular pad is mounted on and supported by the flange portion of the chuck;
FIG. 3 is a schematic cross section showing the existence of the annular pad between the chuck of the present invention and a processing machine obviates the possibility of vibration and friction of the connecting portion of the chuck;
FIG. 4 is an exploded perspective view showing a different embodiment of the annular pad;
FIG. 5 is an exploded perspective view showing still a different embodiment of the annular pad;
FIG. 6 is an exploded perspective view showing that a secondary annular pad is supported by the shoulder of the flange portion of the present invention;
FIG. 7 is a perspective view showing that the annular pad and the secondary annular pad are mounted on and supported by the shoulder of the flange portion of the present invention;
FIG. 8 is an exploded perspective view showing a different embodiment of the annular pad as well as the secondary annular pad;
FIG. 9 is an exploded perspective view showing still a different embodiment of the annular pad as well as the secondary annular pad; and
FIG. 10 is a schematic cross sectional view showing a conventional chuck in combination with a processing machine.
With reference to FIG. 1, it is noted that the chuck (10) in accordance with the present invention includes a conical connecting portion (101), a head (11) and a flange portion (12) sandwiched between the head (11) and the conical connecting portion (10).
The head (11) is configured to hold a blade (not shown) and the flange portion (12) is provided with a cutout (121) defined in a side face thereof. A shoulder (122) is formed on a top face of the flange portion (12) and multiple threaded holes (123) (six are shown) are defined in a face of the shoulder (122). An annular pad (20) is mounted around the connecting portion (101) and provided with a first cutout (21) corresponding to the cutout (121) of the flange portion (12), a second cutout (22) opposite to the first cutout (21) and multiple countersunk holes (23) defined through the annular pad (20) and having a quantity substantially the same as that of the threaded holes (123) of the flange portion (12). Multiple threaded bolts (30) are provided to extend through the countersunk holes (23) and into the threaded holes (123) of the flange portion (12).
With reference to FIGS. 2 and 3, it is noted that after the annular pad (20) is securely mounted on top of the shoulder (122) via the threaded bolts (30) and the chuck (10) is connected to a processing machine (40) via extension of the connecting portion (101) into a conical hole (41) in the processing machine (40), due to the thickness of the annular pad (20), the chuck (10) is securely engaged with a bottom face (42) of the processing machine (40), which obviates the possibility of friction and vibration between the processing machine (40) and the chuck (10). Thus processing precision is maintained.
With reference to FIG. 4, it is noted that the annular pad (20A) may be formed to be sectioned. That is, the annular pad (20A) is composed of two halves and can still accomplish the designated objective. To accomplish the configuration of the annular pad (20A), it is noted from the accompanying drawing that the annular pad (20A) now has a first through hole (21A) and a second through hole (22A) axially defined in the annular pad (20A) to literally separate the annular pad (20A) into halves.
With reference to FIG. 5, it is noted that the annular pad (20B) has six through holes (24) axially defined to literally separate the annular pad (20B) into six sections and can still accomplish the designated objective.
With reference to FIG. 6, it is noted that the chuck (10) is substantially the same as that disclosed in the previous drawings except for that there is a provision of a secondary annular pad (40). The secondary annular pad (40) has a dimension and configuration substantially the same as those of the annular pad (20). However, there is a thickness difference between the annular pad (20) and the secondary annular pad (40) (the secondary annular pad (40) is thinner than that of the annular pad (20)). Accordingly, the secondary annular pad (40) is provided with a third cutout (41) to correspond to the cutout (121) of the flange portion (12) and the first cutout (21) of the annular pad (20) and a fourth cutout (42) to correspond to the second cutout (22) of the annular pad (20). Multiple apertures (43) are defined to correspond to the countersunk holes (23) of the annular pad (20) and the threaded holes (123) of the flange portion (12).
As shown in FIG. 7, it is noted that after the annular pad (20) and the secondary annular pad (40) are mounted on the flange portion (12) via the threaded bolts (30), the combination of the annular pad (20) and the secondary annular pad (40) fills the gap between the bottom face of the processing machine and the chuck (10).
With reference to FIG. 8, it is noted that the secondary annular pad (40A) may be formed to be sectioned. That is, the secondary annular pad (40A) is composed of two halves and can still accomplish the designated objective. To accomplish the configuration of the secondary annular pad (40A), it is noted from the accompanying drawing that the secondary annular pad (40A) now has a third through hole (41A) and a fourth through hole (42A) axially defined in the secondary annular pad (40A) to literally separate the secondary annular pad (40A) into halves to correspond to the halves of the annular pad (20A).
With reference to FIG. 9, it is noted that the secondary annular pad (40B) now has six secondary through holes (44) axially defined to literally separate the secondary annular pad (40B) into six sections and can still accomplish the designated objective.
It is to be understood, however, that even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and function of the invention, the disclosure is illustrative only, and changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.
Patent Application
20080031699
