Patent Application
20050175423
The present invention relates to a drilling device, and more particularly to a vertical drilling device which provides a control mechanism for left-handed users or right-handed users so as to meet the requirement for different users during operation.
Referring to
The above-mentioned drilling machine 70 has good effect on drilling, but the drilling machine 70 only provides one set of control unit 74. Although the right-handed user can conveniently operate the drilling machine 70, the left-handed user cannot smoothly operate the drilling machine 70 because of different habitual behavior.
Accordingly, most drilling machines in the prior art are designed for right-handed users, not for left-handed users. Therefore, the present invention provides a drilling device, which is operated by a right hand and a left hand, so as to achieve the object of convenient operation.
According to the foregoing disclosed object and effect, the present invention provides a drilling device for both left-handed and right-handed users, wherein the housing is provided with a feeding horizontal shaft, the feeding horizontal shaft is jointed to a mechanism which controls the drilling chuck to move upward or downward, two ends of the feeding horizontal shaft are respectively provided with one control unit, such that the user uses his right hand or left hand to operate the drilling device according to personal habitual behavior. Thus, the drilling device has the effect on convenient operation and can really meet the requirement of actual operation.
The above-mentioned two sets of the control units are provided with handles which can be assembled and disassembled. During normal operation, only one set of the control units is requested to be provided with the handles. Of course, the user can choose that two sets of the control units are both requested to be provided with the handles during normal operation.
The foregoing, as well as additional objects, features and advantages of the invention will be more readily apparent from the following detailed description, which proceeds with reference to the accompanying drawings.
Referring to
A housing 20 is disposed above the base 12, a transmission mechanism (not shown) is disposed in the interior of the housing 20, and a transmission box 22 is disposed on the top of the housing 20. The pulley assembly which is constituted by plurality of belt pulleys is mounted in the transmission box 22, and is connected to the transmission mechanism in the housing 20, such that the motor 24 which is installed on the back of the housing 20 rotates to drive the belt pulleys in the transmission box 22 and then drive the transmission mechanism to be operated. The pulley assembly which is disposed in the transmission box 22 is used for adjusting spindle speed.
Furthermore, a drilling chuck 30 is disposed on the bottom surface of the housing 20 and used for clamping a drill bit (not shown). The drilling chuck 30 is driven by the transmission mechanism in the housing 20 and then can be rotated.
Furthermore, two control units 40, 50 are respectively disposed on the two sides of the housing 20, and the control units 40, 50 respectively drive the drilling chuck 30 to move downward when a user operates the control units 40, 50.
Referring to
As described more detailed, the feeding horizontal shaft 60 is transversely penetrated through the housing 20, and two ends of the feeding horizontal shaft 60 are bulged out the surface of the housing 20. The toothed portion 62 which is mounted on the feeding horizontal shaft 60 is positioned in the housing 20 and can drive the drilling chuck 30. In other words, when the feeding horizontal shaft 60 is rotated, the drilling chuck 30 can be driven by the toothed portion 62 to move downward or upward.
The roll-shaped spring 66 is put around the one end of the feeding horizontal shaft 60 bulged out the surface of the housing 20, is close to the side surface of the housing 20, and one end of the roll-shaped spring 66 can be jointed to the feeding horizontal shaft 60. Thus, when the feeding horizontal shaft 60 is rotated, the roll-shaped spring 66 can be deformed by the rotation of the feeding horizontal shaft 60 and then the roll-shaped spring 66 provides the feeding horizontal shaft 60 with necessary recoverable force of the rotation.
It is apparent to one of ordinary skill in the art that the hub 42 of the control unit 40 and the hub 52 of the control unit 50 are assembled disposed at the two ends of the feeding horizontal shaft 60 and simultaneously only ones of the handles 44 and the handles 54 can be lockable jointed at the periphery of the hubs 42, 52. For example, when a right-handed user is changed to be a left-handed user, the handles can be taken away from the hub 42 and then lockable jointed at the periphery of the hub 52. Thus, the drilling device typically has ones of the handles 44 and the handles 54 which are convenient for the right-handed or left-handed user.
Referring to
Referring to
When the user operates the handles 44, the feeding horizontal shaft 60 and the hub 42 are simultaneously rotated. At the same time, the toothed portion 62 drives the drilling chuck 30 to move downward, and the roll-shaped spring 66 can be also deformed by the feeding horizontal shaft 60. Thus, the user can smoothly achieve the object of drilling. When the user reversely operates the control unit 40 to drive the drill bit to move out a work piece, the user can cooperate with recoverable force caused by the roll-shaped spring 66 and save more effort to operate the control unit 40 to be recovered a original position.
Referring to
As described above, the present invention provides the organization of the feeding horizontal shaft 60 and the roll-shaped spring 66 and the disassembled and assembled aspect of the plurality of handles 44, 54 of the hubs 42, 52 of the control units 40, 50, such that different users operate the drilling device according to personal habitual behavior. Thus, the drilling device has the effect on convenient operation and can really meet the requirement of actual operation.
While the foregoing description and drawings represent the preferred embodiments of the present invention, it will be understood that various additions, modifications and substitutions may be made therein without departing from the spirit and scope of the principles of the present invention as defined in the accompanying claims. One skilled in the art will appreciate that the invention may be used with many modifications of form, structure arrangement, proportions, materials, elements, and components and otherwise, used in the practice of the invention, which are particularly adapted to specific environments and operating requirements without departing from the principles of the present invention. The presently disclosed embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims and their legal equivalents, and not limited to be the foregoing description.
