A sander used in particular for sanding of flat, concave, and convex surfaces and the method of its utilisation

A grinding machine, convex technology, used in grinding machines, portable grinding machines, grinding/polishing equipment, etc.

Inactive Publication Date: 2010-06-16
彼得·弗罗涅克
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the above dis

Method used

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  • A sander used in particular for sanding of flat, concave, and convex surfaces and the method of its utilisation
  • A sander used in particular for sanding of flat, concave, and convex surfaces and the method of its utilisation
  • A sander used in particular for sanding of flat, concave, and convex surfaces and the method of its utilisation

Examples

Experimental program
Comparison scheme
Effect test

Example

[0036] Example 1

[0037] The sander, or more precisely the manual sander (see Figure 1), includes a basic flexible pressure plate 1, on the bottom of which is installed a sponge rubber 2 and a dry zipper 3 for attaching sandpaper. The bracket 4 is positioned on the pressure plate with pins 5 and 6. The brackets are connected in pairs by a balance bar 8 which is provided with an opening for a pin 5 at one end and a notch 7 at the other end, and the pin 6 moves in the notch 7. The movement is caused by any deflection of the pressure plate 1 and causes the distance between the pins 5 and 6 to change. The balance bar 8 includes pins 9 and 10. The balance rods 8 are bridged with each other by the balance rod 12. The balance rod 12 is provided with an opening for the pin 9 at one end and a notch 11 at the other end. The pin 10 moves in the notch 11 and passes through the balance rod 8. Hole. The function of the balance bars 8 and 12 is to evenly distribute the pressure applied to ...

Example

[0038] Example 2

[0039] The manual sanding plane (see Figure 2) has a similar structure to the above-mentioned plane (see Figure 1). The manual sanding plane is attached with a strong plastic cover 15 with a flexible collar 16 and a coupling 17, which is used to connect a rubber hose for extracting abrasive dust. For this purpose, the pressure plate has through holes 18 for drawing out abrasive dust. The pressure plate is also provided with a tie rod 19, which is fixed relative to the upper balance rod and can therefore fix the bending of the pressure plate.

[0040] The detailed function and structure of the balance bar 19 will be apparent from the section AA in FIG. 3. The balance rod 19 is firmly connected with the tube 20, and the balance rod 19 pivotally rests on the pin 5. At the same time, the balance bar 19 passes freely through a lateral opening in the pin 21 which is placed pivotally over the upper balance bar or more precisely the handle of the sander 12. On the lo...

Example

[0042] Example 3

[0043] A linear mechanical sander with a flexible pressure plate (see Figure 3) is based on a structure and principle similar to that of a manual sander (see Figure 1 and Figure 2). In addition, the flexible pressure plate 29 is equipped with a mechanically driven movable forming plate 27, and the movable forming plate 27 is equipped with an abrasive material 28 at its bottom. The plate is designed to partially surround the C-shaped profile of the flexible pressure plate 29. 9 and 10 show views and cross-sections of the movable sanding plate thus formed surrounding the flexible pressure plate. The profile of the movable sanding plate 27 is lightened on the top side thereof due to the lateral recesses 31 formed at fixed intervals, which remove the longitudinal rigidity of the profile. The details of the lightening part are illustrated in FIG. 11. Figure 12 illustrates the principle and state of the relief profile 27 towards the pressure plate 29 during the co...

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PUM

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Abstract

The sander for sanding particularly of the flat, concave and convex surfaces and the method of its usage is based on the fact, that the sanding tool (paper, linen or other carrier with sanding abrasive layer) is pressed onto the grinded surface by means of a flexible pressure plate able to copy the concave and convex surfaces with the possibility to set accurately the radius of this curve. The principle of the technical solution of the invention of the flexible pressure plate consists in the fact, that the pressure generated during the work onto the body, handle, or handles of the sander with mechanical drive is transferred onto this pressure plate at least at two points simultaneously or over at least one balance beam.

Description

technical field [0001] The invention relates to a manual sander or a belt-driven sander specially designed for sanding flat, concave, convex, arched, hollow, cored and convex surfaces, and a method of sanding using such a tool. Background technique [0002] Currently, for manual sanding of flat surfaces, various hand tools such as sanding blocks and sanding planes are used, or mechanically driven, vibratory, belt or linear sanders of different shapes and sizes are used. Similar tools are used for grinding concave and convex surfaces, but since these tools are designed specifically for grinding flat surfaces, the final ideal grinding of the desired convex or concave curve depends largely on the skill of the worker performing the operation. [0003] For grinding large flats, it is advantageous to work with a tool with the largest possible working surface for high output, but mainly because it is easier to obtain an ideal flat when using such a tool. One disadvantage of using ...

Claims

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Application Information

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IPC IPC(8): B24D15/04
CPCB24B23/06B24D15/04B24B23/04B24B23/00B24B55/10
Inventor 彼得·弗罗涅克
Owner 彼得·弗罗涅克
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