JPS5931362Y2 - Planer blade protrusion control device in electric plane machine - Google Patents

Description

[Detailed description of the invention] The present invention relates to a device for preventing the protrusion of a planer blade in an electric planer machine, and its purpose is to prevent slight movement of the planer blade in the protrusion direction during blade height adjustment, for example, or to prevent the protrusion of the planer blade during machining. To provide a device for regulating the protrusion of a planer blade.

Hereinafter, one embodiment of the present invention will be described in detail with reference to FIGS. 1 to 3. A planer barrel 1 rotatably attached to an electric planer machine has flat parts 1a, la attached to opposing positions on its outer periphery.
are formed, and relief recesses 1 b , 1 are formed on one side of the boundary between the mounting plane parts la and the arcuate outer periphery, respectively.
b is engraved.

In addition, the planer body 1 has two step-shaped insertion holes 2°2 extending from the relief recesses 1b, lb to the mounting plane portions 1a, 1a in the lateral direction (the lateral direction of the planer blade 3, which will be described later). The large diameter portion 2a of the insertion hole 2, 2 is provided through the through hole 2,
Part 2a in the axial direction communicates with the mounting plane portions 1a, la, and small diameter portions 2b, 2b are provided with spring screw holes.

The planer blade 3 is placed on the mounting plane portion 1a of the planer barrel 1 so as to slightly protrude from the cutting recess 1b between the cutting edge 75, and has elongated engagement holes 4 at two locations in the longitudinal direction. The engagement hole 4 is provided through the insertion hole 2.
It is positioned so as to coincide with the large diameter portion 2a of.

A thin elastic plate 5 is fastened to the flat mounting portion 1a of the planer barrel 1 with 7 mounting screws 6, and is provided at two locations on both sides of the button in the longitudinal direction (one location is shown in FIG. 1). Planer blade 3
A tongue piece 7 is formed in a notch for pressing the planer against the flat mounting portion 1a, so that the planer blade 3 is removably held against the flat mounting portion 1a of the planer barrel 1.

The curved presser plate 8 is removably fastened to the planer barrel 1 by a tightening bolt 9, and when it is fastened, the elastic plate 5 is pressed against the mounting plane portion 1a of the planer barrel 1. and planer blade 3 are both tightened and fixed.

A bolt-shaped locking rod 10 is screwed into a threaded hole in a small diameter portion 2b of the insertion hole 2 so as to be able to move forward and backward, and one end thereof is located within the large diameter portion 2a of the insertion hole 2.

At one end of the locking rod 10 located within the large diameter portion 2a, a small diameter attachment portion 11 is formed leaving a large diameter portion at the tip, and a locking member 12 is formed in the small diameter attachment portion 11. installed.

This locking member 12 is made of an elastic material (plate) having a predetermined width.
It is formed into a flat annular shape with a part open, and when it is attached to the small mounting diameter 11, the open part is expanded against the elasticity of the small diameter mounting part 11 and fitted into the small mounting diameter part 11. ,
The locking member 12 is always clamped against the mounting small diameter portion 11 by its elasticity, and both ends thereof are maintained in a state protruding from the locking rod 10 in the radial direction, and the planer blade 3
It can be freely engaged with and disengaged from the engagement hole 4 of.

Note that the other mounting plane portion 1a side of the plane cylinder 1 is also configured in the same manner as described above.

Further, in the figure, W indicates a movable surface plate of the electric planer, Wl also indicates a fixed surface plate, and S indicates a ruler placed on the fixed surface plate W1.

Next, the operation of this embodiment will be described.

This example is constructed as described above, and first, the blade height adjustment of the planer blade 3 will be explained.

As shown on the left side of FIG. (When the planer blade is placed above the fixed surface plate W1), the presser plate 8 is then placed and temporarily tightened with the tightening bolts 9. In this case, the presser plate 8 Blade 3 is tightened.

Further, the locking member 12//i has been disengaged from the engagement hole 4 of the planer blade 3.

Then, the ruler S is placed on the fixed surface plate W1 from the state shown in FIG. 1, and the plane barrel 1 is rotated so that the cutting edge of the plane blade 3 comes into contact with the ruler S.

The planer blade 3 temporarily tightened as described above is mounted on the fixed surface plate W1.
Since it is located higher up, its cutting edge contacts the lower surface of the ruler S and is pushed inward to become flush with the lower surface of the ruler S, that is, the fixed surface plate W1, and the desired blade height is set here. be done.

In this state, remove the ruler S and tighten firmly with the tightening bolt 9.

(Refer to the right side of FIG. 1) Therefore, after performing the above-mentioned blade height adjustment, a desired tool (not shown) is inserted into the insertion hole 2 and engaged with the tip of the locking rod 10. When the locking member 12 is rotated relative to the screw hole of the small diameter portion 2b in the state on the left side of FIG.
The locking rod 10 rotates as the locking rod 10 spirals, but the end protruding from the locking rod 10 comes into contact with the lower surface of the planer blade 3 and its rotation is prevented. are moved in the same direction.

When the locking member 12 is fitted into the engagement hole 4 of the planer blade 3, the rotation restriction of the locking member 12 is released.
The end portion that rotates together with the locking rod 10 and protrudes from the locking rod 10 fits into the retaining hole 4 of the planer blade 3 and is engaged by coming into contact with one surface of the engaging hole 4. Ru.

(See the right side of Fig. 1 and Fig. 2) Therefore, since the planer blade 3 is reliably prevented from moving relative to the planer barrel 1 by the locking member 12, the high-speed rotation of the planer barrel 1 during cutting Planer blade 3 caused by the inner part
This can prevent the planer blade 3 from protruding further from the planer barrel 1 than the amount by which the blade height has been adjusted.

In addition, when removing the planer blade 3 from the mounting plane portion 1a of the planer barrel 1, the locking rod 10 must be rotated in the opposite direction to that described above and screwed forward, or further in the same direction as described above. By rotating and screwing back, the locking member 12 is separated from the engagement hole 4 of the planer blade 3, and then comes into contact with the lower surface of the planer blade 3.

Then, the tightening bolt 9 is loosened and this is done by known means.

Next, the cited examples of the present invention will be explained according to FIGS. 4 to 6. This embodiment is a case where the attachment of the locking rod 10 and the locking member 12 of the above-mentioned embodiment is changed, and other Since the configuration is the same as that of the previous case, the same members are given the same reference numerals and the explanation thereof will be omitted.

That is, in this embodiment, a bolt-shaped locking rod 10' having a threaded portion on the outer periphery is rotatably inserted into the small diameter portion 2b of the insertion hole 2 of the planer barrel 1, and the locking rod 10' is rotatably inserted into the small diameter portion 2b at one end. The pin 14 is driven from the planer barrel 1 into the locking groove 13 formed at one end of the locking rod 10' to prevent the locking rod 10' from coming out of the insertion hole 2. The other end of 10' faces inside the large diameter part 2a of the insertion hole 2, and a disk-shaped locking member 12' is movably screwed into the threaded portion on the outer periphery of the hole. A relief piece 15 is formed in the part,
The other part can be freely engaged with and disengaged from the engagement hole 4 of the planer blade 3.

Therefore, in this embodiment, when the locking member 12' is engaged with the engagement hole 4 of the plane blade 3 on the left side of the plane blade 3 in FIG.
When the locking member 12' is rotated, the locking member 12' also rotates, and a portion of the locking member 12' comes into contact with the lower surface of the planer blade 3.

When the locking rod 10' continues to rotate, the locking member 12' is prevented from rotating by coming into contact with the planer blade 3, and is also screwed into the relief portion 1b of the planer barrel 1 due to the screwing engagement with the locking rod 10'. be moved in the opposite direction.

When the locking member 12' is positioned in the engagement hole 4 of the plane blade 3, the contact state is released, so that the locking member 12'
' is rotated together with the locking rod 10' and is fitted into the retaining hole 4 of the planer blade 3 and engaged (see the right side of Fig. 4 and Fig. 5), and has the same effect as described above. be enjoyed.

Note that the other functions are the same as those described above, so their explanation will be omitted.

Further, to explain the embodiment shown in FIGS. 7 and 8, this embodiment is a case where the attachment of the locking rod 10 and the locking member 12 is changed from the previous embodiment, and the other configurations are different. Since it is the same as the previous example, the same reference numerals are given to the same members and the explanation thereof will be omitted.

That is, in this embodiment, the locking rod 1 (j' is screwed forward (into the direction of entering the small diameter section 2b) into the small diameter section 2b of the insertion hole 2 of the planer barrel 1 and backward (into the escape recess 1b of the planer barrel 1). This locking rod 1σ projects from the small diameter portion 2b, and a flat plate-shaped locking member 1g formed in the same manner as described above is attached to the large diameter flange 16 at this projecting portion. They are abutted and rotatably fitted.

The locking member 1i is always urged toward the flange 16 by a spring 18 elastically loaded between the locking ring 17 fitted in the groove of the locking rod 1 (j') and the locking member 1i.

Therefore, in this embodiment, when the locking member 1g is to be engaged with the engagement hole 4 of the planer blade 3, a desired tool (not shown) is inserted into the insertion hole 2 and the locking rod is inserted. When the locking rod 1 (f) is rotated with respect to the screw hole of the small diameter portion 2b and screwed back in the direction toward the escape recess 1b of the planer barrel 1, the locking member 1i becomes the locking rod. 1 (j′) rotate together with the screw, but the relief piece 1 of the locking member 1i comes into contact with the lower surface of the planer blade 3 and its rotation is restricted, so it rotates along with the locking rod 1σ in the direction of the arrow shown in the figure. will be moved to

When the locking member 1i is fitted into the engagement hole 4 of the planer blade 3, the rotation of the locking member 11 is released.
It is integrated with the locking rod 1σ by the biasing force of the spring 18, rotates together, and is fitted into the engagement hole 4 of the planer blade 3 to be engaged, and has the same effect as the previous embodiment. The effect is to be enjoyed.

In addition, in the present invention, in both of the above-mentioned embodiments, a mode in which the planer blade is clamped by an elastic plate has been described, but the present invention is not necessarily limited to this, and a mode in which only a holding plate is used may also be used. .

Further, the shape of the retaining hole formed through the planer blade is not limited to that shown in the drawings.

As described above, in the present invention, the planer blade is attached to the planer machine which is fastened to the planer body via a presser plate, etc., and the planer body has a locking portion along the short direction of the planer blade. A part of the locking rod is provided with a locking member that can rotate independently with respect to the locking rod, so that the locking rod can rotate independently as the locking rod rotates. By configuring the locking member to be able to engage with a retaining hole formed through the plane blade, the plane blade can be attached to the plane body by changing the position of the locking member that rotates independently with respect to the locking rod. Since it is regulated by engagement, it goes without saying that the high-speed rotation of the planer barrel is not only to reliably prevent the planer blade from flying out from the planer barrel due to vibrations during cutting, but also to prevent the locking member from attaching to the planer blade. The locking operation can be carried out very easily by the locking member that rotates independently with respect to the locking rod, and when locking, the effect is that there is no adverse effect on the planer blade after the blade height has been adjusted. Demonstrate.

Furthermore, in the present invention, the engaging part provided on the locking member can be moored freely in the retaining hole penetrated through the planer blade, and the locking member is provided with a non-engaging part so that the ship can be moored. By configuring the locking member to be removable, the locking rod and the locking member can be assembled and removed very easily and freely with the plane blade still attached to the plane barrel, making it easy to handle. It has the effect of

[Brief explanation of drawings]

The figures show an embodiment of the present invention. Figure 1 is a cross-sectional view of a plane cylinder in which the protrusion control device of the present invention is implemented, Figure 2 is a view in the direction of the arrow in Figure 1, and Figure 3 shows a part of the plane blade. FIG. 4 is a cross-sectional view showing another example of the present invention; FIG. 5 is a view taken along the arrow in FIG. 4; FIG. 6 is a partially cut-away plan view of the planer blade; FIG. 7 is a partially broken sectional view showing another example of the present invention, and FIG. 8 is a plan view of FIG. 7. 1... Planer body, 3... Planer blade, 4... Engagement hole, 10, 10', 1(f'... Locking rod, 12,
12'...1i...Locking member.

Claims (1)

[Scope of utility model registration request] In a planer machine in which a planer blade is fastened to a planer body via a presser plate or the like, a locking rod is rotatably fitted to the planer body along the short direction of the planer blade, and the locking rod is A part of the locking member is provided with a locking member that is rotatable independently with respect to the locking rod, and the locking member is provided with a locking member that penetrates the planer blade by independent rotation as the locking rod rotates. A planer blade protrusion regulating device characterized in that an engaging portion that can be freely moored in the retaining hole and a non-engaging portion that allows movement of the locking member with respect to the locking rod are formed.