1. Technical Field
The present disclosure relates to printing technology.
2. Description of Related Art
A typical printing apparatus, such as a printer or a photocopying machine, includes a bracket and a printing platform mounted on the bracket. A motor and a driving belt are mounted on the bracket to move the printing platform. A plurality of sliding blocks are mounted between the bracket and the printing platform to adjust a height of the printing platform. A damping member is mounted to the printing platform and the driving belt to decrease shocks and provide a “soft-start” moving function. However, the driving belt tends to be loosened on the damping member when the height of the printing platform is adjusted, and the printing apparatus malfunctions.
Therefore, there is a need for improvement in the art.
Many aspects of the embodiments can be better understood with reference to the following drawings. The components in the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the embodiments. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the several views.
The disclosure is illustrated by way of example and not by way of limitation in the figures of the accompanying drawings in which like references indicate similar elements. It should be noted that references to “an” or “one” embodiment in this disclosure are not necessarily to the same embodiment, and such references mean “at least one.”
The adjusting block 30 includes a base 31, and a protrusion portion 32 extended from the base 31. The protrusion portion 32 includes a first sidewall 321, a second sidewall 322, and an accommodating space 323 corporately formed between the first sidewall 321 and the second sidewall 322. A damping block 40 is accommodated in the accommodating space 323. A diagonal surface 41 is formed on a top of the damping block 40. An accommodating box 21 is formed on the printing platform 20. A diagonal panel 211 is formed on a top of the accommodating box 21. An adjusting pole 50 passes through the accommodating box 21 and the protrusion portion 32 to movably fix the adjusting block 30 between the bracket 10 and the printing platform 20. A first sliding slot 324 is defined in each of the first sidewall 321 and the second sidewall 322. A first through hole 212 is defined in each of the two sides of the accommodating box 21. A second through hole 42 is defined in each of the two sides of the damping block 40. A plurality of outer threads 51 are formed on the adjusting pole 50. A locking ring 52 is mounted on a distal end of the adjusting pole 50. A plurality of inner threads 325 are formed in each of the two first sliding slots 324. A guiding pole 11 is mounted on the bracket 10. Two second sliding slots 33 are defined at a bottom of the base 31.
In one embodiment, a length of the protrusion portion 32 is less than that of the accommodating box 21 and less than that of the base 31. The length of the protrusion portion 32 is substantially equal to that of the damping block 40. A height of the first sidewall 321 is less than that of the second sidewall 322. The height of the second sidewall 322 is less than that of the damping block 40.
Referring to
Referring to
When the adjusting pole 50 is rotated along the second direction, the plurality of outer threads 51 engage with the plurality of inner threads 325 and move the protrusion portion 32 in a fourth direction in the accommodating box 21. The diagonal surface 41 moves in the fourth direction and withdraws support for the diagonal panel 211. The printing platform 20 is thus lowered by the adjusting block 30 to a second height. When the printing platform 20 falls to the second height, the diagonal surface 41 contacts the diagonal panel 211 again. In one embodiment, the locking ring 52 prevents the disengagement of the adjusting pole 50 from the first sliding slots 324 when the adjusting pole 50 is rotated. In one embodiment, the third direction is toward the left, and the fourth direction is toward the right. The second height is lower than the first height.
Even though numerous characteristics and advantages of the present disclosure have been set forth in the foregoing description, together with details of the structure and function of the disclosure, the disclosure is illustrative only, and changes may be made in detail, especially in the matters of shape, size, and the arrangement of parts within the principles of the disclosure to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.
Number | Date | Country | Kind |
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2012102210819 | Jun 2012 | CN | national |