JPH03117555U

JPH03117555U -

Info

Publication number: JPH03117555U
Application number: JP2755290U
Authority: JP
Priority date: 1990-03-16
Filing date: 1990-03-16
Publication date: 1991-12-04

Description

[Brief explanation of the drawing]

第１図は全体斜視図、第２図は丸鋸装着軸部の
組立をグラインダーの反対側から見た正面図で（
１部断面を示す）第３図は刃縦部研磨の説明、第
４図は刃背部研磨修正の説明、第５図はグライン
ダーを往復習動せしめる要部図と位置調整ネジ平
面図、第６図は位置調整ネジをグラインダー後方
から見た正面図、第７図は送り爪平面図、第８図
は逆転防止爪平面図である。１……基台、２……立軸Ａ、３……ピニオン、
４……ラツク、５……ハンドル、５，ｅ……ハン
ドル回動起点、５，ｆ……ハンドル回動終点、６
……立軸Ｂ、７……送り爪、８……逆転防止爪、
９……刃押さえ、１０……六角ナツト、１１……
櫓台、１２……爪、１３……押しバネ、１４……
ラツク押さえ、１５……連結棒、１６……爪、１
７……押しバネ、１８……ハンドル回動支持穴、
２１……丸鋸、２１，ｘ……刃縦部、２１，ｙ…
…刃背部、５１……グラインダー、５２……習動
台、５３……習動台ガイド、５４……位置調整支
持具、５５……位置調整ネジ。 Figure 1 is an overall perspective view, and Figure 2 is a front view of the assembly of the circular saw mounting shaft seen from the opposite side of the grinder.
(Part 1 is shown in cross section) Figure 3 is an explanation of grinding the vertical part of the blade, Figure 4 is an explanation of polishing the back of the blade, Figure 5 is a diagram of the main parts that make the grinder move back and forth, and a plan view of the position adjustment screw. The figure is a front view of the position adjustment screw as seen from the rear of the grinder, FIG. 7 is a plan view of the feed pawl, and FIG. 8 is a plan view of the reversal prevention pawl. 1...Base, 2...Vertical shaft A, 3...Pinion,
4...Rack, 5...Handle, 5, e...Handle rotation starting point, 5, f...Handle rotation end point, 6
... Vertical shaft B, 7... Feed claw, 8... Reverse prevention claw,
9...Blade holder, 10...Hexagonal nut, 11...
Turret stand, 12...claw, 13...push spring, 14...
Rack holder, 15... Connecting rod, 16... Claw, 1
7...Press spring, 18...Handle rotation support hole,
21...Circular saw, 21,x...Blade vertical part, 21,y...
...Blade back, 51... Grinder, 52... Training stand, 53... Training stand guide, 54... Position adjustment support, 55... Position adjustment screw.

Claims

[Claims for Utility Model Registration] As shown in Fig. 1, the grinder 51 is fixed to a sliding table 52 that can freely move back and forth in the vertical axis direction at a position facing the vertical axis B6 on which the circular saw 21 is attached, and as shown in Fig. 2. A vertical shaft A2 is fixed and erected on the base 1 shown in FIG. It is connected to a grinder 51 fixed to a learning table 52 in FIG. A handle 5 is fixed to the upper part of the pinion 3 shown in FIG. 2, and the pinion 3 and the handle 5 are rotated at the same time. A separately rotating vertical shaft B6 is vertically installed in the center hole of the pinion 3 at the upper part of the vertical shaft A2, and a feed pawl 7 and a reversal prevention pawl 8 are tightened and fixed to the vertical shaft B6 so as to rotate at the same time as the vertical shaft B6. The hexagonal nut 10 fixes the reverse rotation prevention pawl 8 so that it does not loosen. The vertical shaft B6 has a structure in which the lower part is supported by the center hole of the pinion 3 and the upper part is supported by the turret stand 11, so that the shaft does not run out. The handle 5 is placed at an appropriate position on the side of the turret stand 11.
A handle rotation support hole 18 shown in the figure is provided, the handle 5 is passed through the support hole 18, and its tip is connected to the circular saw 21.
The handle 5 is made to protrude longer than the radius of the handle 5 so that the handle 5 can be operated. Next, the handle 5 shown in Figures 2 and 7
At an appropriate position, the pawl 12 that acts on the feed pawl 7 is attached so as to be pushed by a push spring 13. This moves the handle 5 from the handle rotation starting point 5, e to the rotation end point 5, f, as shown in FIG. When the handle 5 reaches the end point 5, f of the handle rotation, the claw 12 in FIG. It enters the "lock" of feed claw 7.
When the handle 5 is rotated, as shown in FIG. 8, the claw 16 enters the hook of the anti-reverse claw 8, and the circular saw 21 remains in the non-rotating state, and as shown in FIG. 51 polishes and advances the vertical blade portion 21, x from b to a. Next, when the handle 5 is rotated from the handle rotation end point 5, f shown in FIG. 4 toward the starting point 5, e, the claw 1
2 enters the "lock" of the feed claw 7, and the circular saw 21 rotates clockwise. At this time, the grinder 51 connected to the rack 4 moves back due to the rotation of the pinion 3, and the blade back 2
1. Grind y to make it evenly aligned with the circular arc. Since the radius of the circular saw 21 becomes smaller each time it is polished, use the distance adjustment screw 5 shown in Figures 5 and 6.
5 to deal with this. With the above-mentioned configuration, the rotation range of the handle 5 is set to 1/4 of a circle, and the handle 5 is reciprocated four times to complete the polishing correction in the case of a four-blade blade having four vertical blade portions. If the rotation range of the handle 5 is restricted to one-eighth of the rotation of the 8-blade blade with 8 vertical blade parts, the handle 5
The polishing correction is completed by making 8 reciprocations. Note that the reversal prevention pawl 8 has the same number of "tacks" as the number of vertical parts of the blade. This relates to a device for polishing and repairing a large pitch circular saw configured as described above.