Patent Application
20180023603
The subject matter herein generally relates to a paper cassette and a printing device using the paper cassette.
In assembly of some structures or units, multiple installation steps could be involved. During the assembly process, unpredictable damage would be caused if the previous step was not accomplished or the component in the previous step was not installed to a predetermined position. Therefore, occurrence of an error in the installation order should be prevented.
Implementations of the present technology will now be described, by way of example only, with reference to the attached figures.
It will be appreciated that for simplicity and clarity of illustration, where appropriate, reference numerals have been repeated among the different figures to indicate corresponding or analogous elements. In addition, numerous specific details are set forth in order to provide a thorough understanding of the embodiments described herein. However, it will be understood by those of ordinary skill in the art that the embodiments described herein can be practiced without these specific details. In other instances, methods, procedures, and components have not been described in detail so as not to obscure the related relevant feature being described. The drawings are not necessarily to scale and the proportions of certain parts may be exaggerated to better illustrate details and features. The description is not to be considered as limiting the scope of the embodiments described herein.
Several definitions that apply throughout this disclosure will now be presented.
The term “substantially” is defined to be essentially conforming to the particular dimension, shape, or other feature that the term modifies, such that the component need not be exact. For example, “substantially cylindrical” means that the object resembles a cylinder, but can have one or more deviations from a true cylinder. The term “comprising,” when utilized, means “including, but not necessarily limited to”; it specifically indicates open-ended inclusion or membership in the so-described combination, group, series, and the like.
The present disclosure is described in relation to an apparatus for assembling a multi-component structure.
The assembling apparatus includes a pushing member 110 and a latch unit 210. The pushing member 110 is fixed to a first component 10, and the pushing member 110 moves together with the first component 10 along a predetermined installation direction of the first component 10. The latch unit 210 is correspond to the pushing member 110, and the latch unit 210 is fixed to a second component 20.
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A mounting surface of the second component 20 can include an opening 220. One end of the latch unit 210 includes a protrusion, the other end of the latch unit 20 includes a linkage corresponding to the pushing member 110. When the protrusion protrudes out of the mounting surface of the second component 20 via the opening 220, the latch unit 210 stays in the locking position, the protrusion interferes with the third component 30, so as to prevent the second component 20 from being installed to the third component 30. When the linkage is driven by the pushing member 110, the protrusion retreats into the inner side of the mounting surface of the second component 20, the latch unit 210 reaches an unlocking position.
In corresponding with the latch unit 210, a block member 310, such as a baffle, can be located on the third component 30, when the first component 10 is not installed to the predetermined position of the second component 20, the block member 310 interferes with the protrusion of the latch member 210, so as to prevent the second component 20 from being installed to the third component 30.
In at least one embodiment, the latch unit 210 can include a pin 2101. The pin 2101 can include a pin head 2101b and a pin rod 2101a. The pin head 2101b is located in the inner side of the mounting surface of the second component 20, the pin rod 2101a is connected to the pin head 2101b and used as the protrusion. The pin rod 2101a can slide in the opening with the leading of the pin head 2101b. When the pin rod 2101a protrudes out of the mounting surface via the opening 220, the latch unit 210 stays in the locking position, when the pin head 2101b is driven by the pushing member 110, the pin rod 2101a retreats into the inner side of the mounting surface of the second component 20, the latch unit 210 reaches an unlocking position. In this case, the pushing member 110 can contact with the pin head 2101b to drive the pin head 2101b.
In order to form a linkage between the pushing member 110 and the pin 2101, the pushing member 110 can be a wedge block. When the first component 10 is installed to the predetermined position of the second component 20, the front end of the wedge block is inserted between the pin head 2101b and the mounting surface of the second component 20, the pin head 2101b can be driven by the bevel 1101 of the wedge block to pull the pin rod 2101a back inside the mounting surface of the second component 20. When the first component 10 is not installed to the predetermined position of the second component 20, the front end of the wedge block is separated from the pin head 2101b and the mounting surface of the second component 20, the pin head 2101b is close to the mounting surface of the second component 20, and the pin rod 2101a protrudes out of the mounting surface of the second component 20, the pin rod 2101a interferes with the third component 30, so as to prevent the second component 20 from being installed to the third component 30.
A slot 1102 can be formed in the front end of the wedge block. The slot 1102 extends along the moving direction of the wedge block, the pin rod 2101a can be received in the slot 1102, when the wedge block moves, the pin rod 2101a slides in the slot 1102, so as to provide enough moving distance for the wedge block.
Similarly, the diameter of the pin head 2101b can contract towards the pin rod 2101a to form a frustum of a cone 2101c, the pushing member 110 can be formed as a cuboid, when the first component 10 is installed to the predetermined position of the second component, the front end of the pushing member 110 abuts on the frustum of a cone 2101c to drive the pin head 2101b to slide in the opening 220, so as to pull the pin rod 2101a back inside the mounting surface of the second component 20.
In order to keep the latch unit 210 in locking position when the first component 10 is not installed to the predetermined position of the second component 20, an elastic member (not shown) can be connected between the pin head 2101b and the mounting surface of the second component 20. When the first component 10 is installed to the predetermined position of the second component 20, the elastic member is elastically deformed, When the first component 10 is not installed to the predetermined position of the second component, the elastic member recovers under recovery stress to keep the pin rod 2101a stays out of the mounting surface of the second component 20 to keep the latch unit 210 in locking position, so as to avoid the invalidation caused by the free movement of the pin rod 2101a.
The elastic member can be chosen as a spring or a clip.
The embodiments shown and described above are only examples. Even though numerous characteristics and advantages of the present technology have been set forth in the foregoing description, together with details of the structure and function of the present disclosure, the disclosure is illustrative only, and changes may be made in the details, including matters of shape, size, and arrangement of the parts within the principles of the present disclosure, up to and including the full extent established by the broad general meaning of the terms used in the claims.
| Number | Date | Country | Kind |
|---|---|---|---|
| 201610581222.6 | Jul 2016 | CN | national |
