Perforator
A punching device and hole technology, applied in metal processing, etc., can solve the problems of higher cost for users, wear and loss of conflicting structure and transmission structure, etc.
Inactive Publication Date: 2005-03-30
PRIMAX ELECTRONICS LTD
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Problems solved by technology
[0005] 1. When punching a stack of paper at the same time, both hands are required to punch through the entire stack of documents, which requires a lot of strength
[0006] 2. In order to make the user less laborious, the known structure of the punching machine usually solves the problem by increasing the length of the pressing rod, but this will increase the height and volume of the product, which is very difficult for the transportation and storage of the product. Requires a lot of storage space, which bothers users
[0007] 3. The frictional contact between the conflicting structure and the transmission structure is easy to cause wear and tear, which will cause the force T applied by the user to the pressure rod to be lost in the process of transmission, and the user will need to spend more force to move it. file punch
Method used
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[0020] Please refer to Figure 2 (a) (b) (c), which is a schematic structural view of a preferred embodiment of the punching device of the present invention, which punches at least one hole on a document by the action of an external force T, and is a follow-up document The binding work provides the required holes, so that the bound data files are easy to carry and organize. The punching device is composed of a pressing rod structure 20 , a resisting structure 21 and a device main body 22 .
[0021] The compression bar structure 20 includes a coupling point C, a force application point B and a force receiving point A, and the force application point B is mainly connected to the coupling point C and the force application point B to receive the external force T. The included angle between the two straight lines formed by the stress points A must be less than 180 degrees and greater than 90 degrees.
[0022] As can be seen from FIG. 2( b ), the abutment structure 21 can be a rolle...
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The perforatory driven by some outer force to perforate includes one pressure lever mechanism comprising one coupling point, one force applying point and one force applied point with the line connecting the force applying point and the coupling point and the line connecting the force applying point and the force applied point forming some angle smaller than 180 deg; one push mechanism in the force applying point to transfer the outer force; and one main body connected with the pressure lever mechanism and contacted with the push mechanism to accept the force the push mechanism transfers for perforate.
Description
technical field [0001] This case relates to a punching device, in particular to a punching device with a pressure rod structure including a coupling point, a force applying point and a force receiving point. Background technique [0002] The punching machine for general affairs is mainly used to punch the documents, and then bind the documents with the same holes into a book with various adhesive strips, which is convenient for the organization and carrying of the materials. [0003] See figure 1 , which is a structural schematic diagram of a file punching machine and a binding machine proposed in U.S. Patent No. Des.423039. As can be seen from the figure, the punching machine consists of a pressing bar 10, a conflicting structure 101 and a punching structure 11, the main mode of operation is that after the user puts the document in the position of the punching slot (not shown in the figure), a downward force T is applied to the pressing rod 10, and the acting force T passe...
Claims
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IPC IPC(8): B26F1/32
Inventor 李培源
Owner PRIMAX ELECTRONICS LTD