JPS6241768Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a locking device for a planer barrel in a planer board.

If the plane barrel rotates when polishing or replacing the plane blade, bolting the plane blade to the plane body, or adjusting the cutting edge of the plane blade, this will not only hinder these operations but also cause safety issues. Problems also arise.

In view of the above-mentioned reasons, the purpose of this invention is to lock the plane body at the bolt tightening position of the plane blade and the blade edge adjustment position of the plane blade, thereby making it easier to tighten the bolts and adjust the blade edge of the plane blade. To provide a planer barrel locking device that can be easily and safely locked.

An embodiment of this invention will be described below with reference to the drawings.

A predetermined number (two in FIG. 1) of mounting surfaces for attaching planer blades 3 are formed in the axial direction of the outer peripheral surface of the planer barrel 2 which is rotatably supported by the frame 1 of the planer board. A planer blade 3 is movably attached to the surface by a presser plate 4 and a tightening bolt 5. One end of the rotating shaft 2a of the planer barrel 2 passes through a bearing 6 and protrudes from the outer surface of the frame 1 by a predetermined amount, and a pulley 7 on which a drive belt (not shown) is hung is mounted on the outer peripheral surface of this portion. Keys are worn.

A substantially L-shaped lock lever 8 is pivotably mounted on the outer surface of the frame 1 near a bent portion of the lock lever 8 so as to be rotatable about a support bolt 9. This lock lever 8 is biased by a spring 10 in the counterclockwise locking direction in FIG. A lock piece 8a is formed which selectively and releasably engages with both the lock grooves 11 and 12 of the second lock groove. Further, the other end of the lock lever 8 is removably engaged with a locking pin 13 protruding from the outer surface of the frame 1 to lock the lock piece 8a of the lock lever 8.
An engagement hole 8b is formed for holding the lock in the unlocked position where it does not engage with both the first and second lock grooves 11 and 12. Further, at the bottom of the other end of the lock lever 8, an inclined piece 8c is bent outward for bending the lock lever 8 outward to engage and disengage the engagement hole 8b of the lock lever 8 and the locking pin 13. At the upper part of the other end of the lock lever 8, there is a folding plate which is held between the upper surface of the frame 1 and the lower surface of the cover 14 which is closed toward the upper surface when the lock lever 8 is held in the unlocked position. Piece 8
d is formed.

On the other hand, both the first and second lock grooves 11 and 12 formed on the outer circumferential surface of the boss portion 7a of the pulley 7 are formed corresponding to the number of plane blades 3 attached to the plane body 2, for example. When there are two planer blades 3 as shown in FIG. 1, two first and second lock grooves 11 and 12 are also provided. Furthermore, at the bolt tightening position where the tightening bolt 5 can be easily tightened in a substantially vertical direction through the upper surface opening 1a of the frame 1, the lock piece 8a of the lock lever 8 and the first lock groove 11 are engaged with each other, so that the locking lever 8 is engaged with the first locking groove 11. The position of the first locking groove 11 is set so that the barrel 2 can be locked in the bolted position. Furthermore, a blade edge adjustment gauge (not shown) is applied to the blade edge adjustment position of the plane blade 3, that is, the top surface of the frame 1, and when the blade edge of the plane blade 3 hits the gauge surface, the blade edge of the plane blade 3 is adjusted to the plane body. At the position aligned with the vertical line passing through the center of 2,
Lock piece 8a of lock lever 8 and second lock groove 1
The position of the second locking groove 12 is set so that the planer barrel 2 can be locked in the cutting edge adjustment position by engaging with the second locking groove 12.

In the locking device configured as described above, when adjusting the cutting edge of the planer blade 3 and attaching it to the planer barrel 2, first, the inclined piece 8c of the lock lever 8 is attached.
Pull outward to remove the engagement hole 8b of the lock lever 8 from the locking pin 13. Then, lock lever 8
It is rotated in the locking direction by the biasing force of the spring 10. Then, the lock piece 8a of the lock lever 8 and the second lock groove 12 are engaged to lock the planer barrel 2 at the cutting edge adjustment position. In this state, after inserting the planer blade 3 between the mounting surface of the planer barrel 2 and the holding plate 4 attached to the mounting surface with bolts (not shown), a gauge (not shown) is applied to the upper surface of the frame 1. Plane blade 3 on the gauge surface of the gauge
Adjust the cutting edge of the planer blade 3 so that the cutting edge touches the blade. Thereafter, the lock lever 8 is rotated against the urging force of the spring 10, and the lock piece 8a of the lever is rotated to the second position.
After removing it from the lock groove 12, rotate the planer barrel 2 in a predetermined direction, engage the lock piece 8a of the lock lever 8 with the first lock groove 11, and lock the planer barrel 2 in the bolt tightening position of the planer blade 3. do. In this state, the planer blade 3 whose cutting edge has been adjusted is fastened to the planer barrel 2 with the tightening bolt 5, thereby completing the installation of the planer blade 3. Thereafter, the lock lever 8 is held in the unlocked position by the engagement between the engagement hole 8b and the locking pin 13, and when the cover 14 is closed to the frame 1, there is a gap between the frame 1 and the cover 14. At this point, the bent piece 8d of the lock lever 8 is held.

If the above-mentioned unlocking operation of the lock lever 8 is forgotten, by closing the cover 14 against the frame 1, the bent piece 8d of the lock lever 8 is pushed down by the cover 14, and the engagement hole 8b of the lock lever 8 engages with the locking pin 13, thereby holding the lock lever 8 in the unlocked position, thereby preventing an accident in which the planer body 2 is driven in a locked state.

In addition, in the above embodiment, the lock lever 8
The first and second lock pieces 8a are removably engaged with the lock piece 8a.
Both lock grooves 11 and 12 are connected to the boss portion 7a of the pulley 7.
Although it is arranged on the outer peripheral surface, it is not limited to that.
A rotating member that rotates together with the planer barrel 2, for example, the rotating shaft 2a of the planer barrel 2 or a drive shaft that rotates the planer barrel 2 may be provided.

As mentioned above, this invention locks the plane cylinder so that it cannot rotate when bolting the plane blade to the plane body which is rotatably supported on the plane frame and when adjusting the cutting edge of the plane blade. In the device, a lock lever having a flat plate shape along the one side and having a locking piece at one end is attached to one side of the frame so as to be rotatable about a support bolt at approximately the center thereof. The rotary member that rotates together with the planer barrel includes a first member that removably engages with a lock piece of the lock lever to lock the planer barrel in the bolt tightening position and the cutting edge adjustment position of the planer blade, respectively. , second lock grooves are disposed, and the lock lever further includes:
The other end of the lock lever is always urged in the locking direction by a spring, and a lock is provided at a predetermined position on the frame opposite the other end of the lock lever to engage with each other and hold the lock lever in the unlocked position. Locking of a planer body in a planer board in which a stop pin and an engagement hole are arranged, and the engagement and disengagement between the stop pin and the engagement hole is performed by deflection deformation of the other end side of the lock lever. It is a device.

Therefore, according to this invention, the lock piece of the lock lever is engaged with the first lock groove or the second lock groove to selectively lock the plane body in the bolt tightening position of the plane blade and the blade edge adjustment position, respectively. This has the effect that the bolt tightening work of the planer blade to the planer barrel and the blade edge adjustment work can be performed easily and safely in a stable state.

Moreover, when the lock lever is held at the unlocked position by the engagement between the locking pin and the engagement hole provided at the other end of the lock lever and a predetermined position of the frame opposite thereto, the lock lever is held at the unlocked position. Since the lock lever has a flat plate shape along one side of the frame, the amount of protrusion of the lock lever from one side of the frame can be made as small as possible based on the thickness of the plate. Therefore, it is possible to prevent the lock lever from being damaged by something hitting it, or from being moved unexpectedly.

Furthermore, when engaging and disengaging the locking pin with the engagement hole, by bending the other end of the lock lever, the engagement and disengagement can be performed easily and quickly, and the structure can be improved. It also has the advantage of being extremely simple and inexpensive to provide.

[Brief explanation of the drawing]

The drawing shows one embodiment of this invention.
The figure is a front view showing the locking device of the plane barrel, Figure 2 is a plan view, Figure 3 is a cross-sectional view taken along the - line in Figure 2, Figure 4 is a cross-sectional view taken along the - line in Figure 2, and Figure 5 is a cross-sectional view taken along the - line in Figure 2. It is a perspective view showing a lock lever. 1... Frame, 2... Planer body, 3... Planer blade, 5... Tightening bolt, 7... Pulley, 8...
Lock lever, 8a...Lock piece, 11...1st
Lock groove, 12...Second lock groove.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) When bolting the plane blade to the plane body which is rotatably supported on the plane frame, and when adjusting the cutting edge of the plane blade, the plane body cannot be rotated. The locking device is a locking device, in which a locking lever is mounted on one side of the frame and has a flat plate shape along the one side and has a locking piece on one end, and is rotatable about a support bolt at an approximately central portion of the locking lever. A rotary member that is attached to the rotary member and rotates together with the plane cylinder is removably engaged with a lock piece of the lock lever to lock the plane cylinder.
Both first and second locking grooves are provided to lock the plane blade at the bolt tightening position and the cutting edge adjustment position, respectively, and the locking lever is always biased in the locking direction by a spring. A locking pin and an engaging hole for engaging with each other to hold the lock lever in the unlocked position are provided at a predetermined position of the frame opposite to the other end. A locking device for a planer barrel in a planer board, characterized in that engagement and disengagement with an engagement hole are performed by bending and deforming the other end of the lock lever. (2) On the other end of the lock lever, there is a folding mechanism that engages with the cover and rotates the lock lever to the unlocked position when the cover, which is openably and closably mounted above one side of the frame, is closed. A locking device for a planer cylinder in a planer board according to claim 1, wherein the bent piece is formed toward the upper surface of the frame.