JPH0531910U - Safety cover device for vertical sawing circular saw in mortising machine - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent tree edges from jumping out between the housings that are separated on the left and right of the mortise cutter. [Structure] The housing 10 for supporting the circular saws 11 and 12 of the mortise cutting machine is divided into left and right, and each is movably supported by a lateral guide shaft 8. The horizontal guide shaft is supported by the left and right vertical guide shafts 4 via a sliding base 7 so as to be vertically movable. The cover body 27 of the safety cover device 1 is provided so as to cover the side surfaces of the two vertical saws 11 supported by both housings within the range of movement along the lateral guide axis. The upper part of the cover main body is fixed to approximately the center of the lateral guide shaft 8, and the side part of the cover main body is slidably applied to the housing via the holding plate 30. As a result, the left and right vertical saws are properly covered to maintain safety and prevent wood ends from scattering between the housings. In addition, the impact caused by the wooden edge colliding with the cover body should not be transmitted to the machine body.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a safety cover device for a vertical saw and circular saw in a mortise cutting machine.

[0002]

[Prior Art]

 The mortise cutter is provided with, for example, as shown in Japanese Utility Model Publication No. 56-14987, two sets of a vertical saw and a horizontal saw, which are integrated with a drive unit by a single housing. It slides up and down along the left and right vertical guide axes.

In such a mortise cutting machine, since a part of the housing exists between the vertical sawing circular saws on both sides of the housing in a wall shape, the wood end cut by the circular saw hits the housing. It does not fly out of the plane.

[0004]

[Problems to be solved by the device]

 However, in the case of the method in which the wooden end is applied to the housing like the above-mentioned conventional mortise cutting machine, since the housing is directly connected to the vertical guide rod, a large impact is applied to the machine body, causing failure or damage. There is a problem.

The present invention aims to solve such problems.

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention provides a safety for a vertical saw in a tenon slicing machine in which a driving unit including a pair of vertical saws and horizontal saws is vertically movably supported by left and right vertical guide shafts. In the cover device, the cover body of the safety cover covers side surfaces of the two vertical sawing saws within a moving range along a lateral guide axis of the two sawing saws. The upper part of the cover is fixed to approximately the center of the lateral guide shaft, and the side part of the cover main body is slidably abutted on the housing via a holding plate.

[0007]

[Action]

 The left and right housings are separate and each supports a vertical and horizontal saw.

The left and right housings can be moved laterally along the lateral guide axis, and this movement adjustment is performed according to the size of the tenon to be machined. At this time, the cover body is fixed to the horizontal guide rod and covers the vertical sawing saw regardless of the position on the horizontal guide shaft of the housing. Further, when the movement of the housing is adjusted, the housing moves relative to the cover main body, but the cover main body contacts the housing via the holding plate.

When mortising, the horizontal guide shaft descends along with the sliding base, and the sliding base descends along the left and right vertical guide shafts. Therefore, the left and right housings are also lowered, and the vertical and horizontal saws that are held by them respectively perform tenon cutting. The mortise will scatter the edges of the tree, but the cover body will prevent scattering outside the machine. Further, the cover body is only fixed to the lateral guide shaft and is not integrated with the housing, so that the impact due to the wooden end colliding with the cover body is not transmitted to the machine body.

[0010]

【Example】

 Hereinafter, preferred embodiments of a safety cover device for a vertical saw in a mortise cutter according to the present invention will be described with reference to the drawings.

As shown in FIGS. 1 to 3, the mortise machine having the safety cover device 1 has a stand 2. A vise 3 for horizontally fixing the workpiece A on which a tenon is to be formed is attached to the front part of the stand 2, and two left and right vertical guide shafts 4 are attached to the rear part of the stand 2. The work material A gripped by the vise 3 enters between the left and right vertical guide shafts 4.

The upper ends of the left and right vertical guide shafts 4 are connected by a beam-shaped support holder 5. At the left end of the support holder 5, one end of a horizontal pin (not shown) extending at right angles to its longitudinal direction is pivotally supported, and at the other end of the horizontal pin, an operating lever 6 is loosely fitted, and A torsion coil spring (not shown) is interposed between the support holder 5 and the operation lever 6. The operation lever 6 is constantly urged by the torsion coil spring so as to jump upward.

Sliding bases 7 are vertically movably supported on the left and right vertical guide shafts 4, respectively. As shown in FIG. 4, the sliding base 7 is a substantially U-shaped link, and a vertical guide shaft 4 vertically penetrates a vertically long portion 7a thereof. Further, one first lateral guide shaft 8 penetrates the upper lateral portion 7b to connect the sliding bases 7 on the left and right sides. The second lateral guide shaft 9 penetrates the lower laterally long portion 7c. The second lateral guide shaft 9 is divided into two parts, and each of the second lateral guide shafts 9 slidably penetrates the lower lateral long portion 7c of each sliding base 7.

The first horizontal guide shaft 8 supports two sets of a vertical sawing circular saw 11, a horizontal sawing circular saw 12 and a driving unit 13 thereof which are integrated by a housing 10 so as to be movable. Each housing 10 includes a motor (not shown) that is a drive unit 13, and a power transmission mechanism (not shown) that transmits the power of the motor to the pair of the vertical sawing saw 11 and the horizontal sawing saw 12. Covering. A block portion 14 is fixed to the upper portion of the housing 10, and the first lateral guide shaft 8 is inserted therein. Further, brackets 15 (see FIG. 8) are provided on the lower side of the housing 10 on the left and right, and both ends of one of the second lateral guide shafts 9 are fixed to the brackets 15.

Therefore, when the sliding base 7 slides up and down along the vertical guide shaft 4, each housing 10 moves up and down along with the vertical sawing circular saw 11 and the horizontal sawing circular saw 12, respectively. Further, when the block portion 14 of each housing 10 slides along the first lateral guide shaft 8, each housing 10 moves left and right together with the longitudinal sawing circular saw 11 and the lateral sawing circular saw 12, respectively. The second lateral guide shaft 9 guides the lateral movement of each housing 10 and prevents rotation about the first lateral guide shaft 8 during its movement.

A substantially central portion of the first lateral guide shaft 8 and a substantially central portion of the operating lever 6 are connected by a link 16. Therefore, when the operation lever 6 is pushed down against the torsion coil spring, both housings 10 simultaneously descend via the first lateral guide shaft 8, and when the operation lever 6 is released, the housing lever 10 rises again due to the restoring force of the torsion coil spring. Will be stopped.

As shown in FIGS. 4 and 5, each housing 10 is connected to the sliding base 7 via a position adjusting mechanism. That is, the bracket 17 projects upward in the horizontally long portion 7c on the lower side of each sliding base 7, and the shaft 18 penetrates the bracket 17 in the front-rear direction. A plate 20 having a vertically elongated hole 19 is fixed to the tip of the shaft 18 protruding from the bracket 17 to the sliding base 7, and the portion protruding from the bracket 17 to the other side is for locking. The tube 21 is covered. The locking tube 21 is non-rotatable by engaging with the projection 22 protruding from the bracket 17, and a long hole 23 extending in the circumferential direction is formed at the tip end portion thereof. A screw 25 at the tip of the handle 24 penetrates the elongated hole 23 and is screwed into the shaft 18. On the other hand, an L-shaped hook 26 projects from the block portion 14 of the housing 10 toward the plate 20, and the bent tip of the hook 26 is inserted into the elongated hole 19 of the plate 20.

Then, when the handle 24 is turned so as to be twisted and the screw 25 is loosened, the handle 24 becomes rotatable with respect to the lock tube 21, and when the handle 24 is rotated by a desired amount, it is accompanied by it. The plate 20 also rotates, and the housing 10 slides on the lateral guide shaft 8 to move. Thereafter, when the handle 24 is twisted in the opposite direction and the screw 25 is tightened, the handle 24 is fixed to the locking tube 21, and thus the position of the housing 10 is fixed.

As shown in FIGS. 1, 2, 3, 6, and 7, a safety cover device 1 for a vertical saw is provided between the two housings 10. The cover main body 27 of the safety cover device 1 for a vertical saw is provided with two left and right vertical saws within the moving range of the left and right vertical saws 11 along the first and second horizontal guide shafts 8 and 9. It covers the side surface of the circular saw 11. The upper portion of the cover body 27 is fixed to the center of the lateral guide shaft 8 with screws 28 and 29. Further, pressing plates 30 are provided on both sides of the cover body 27, and the cover body 27 slidably contacts the rear flat wall surface of the housing 10 via the pressing plates 30. In order to reduce the frictional force between the wall surface and the holding plate 30, as shown in FIG. 8, a plurality of ridges 31 are formed in parallel with each other in the left-right direction.

The side sawing circular saw 12 is covered with a front cover 32, and the front cover 32 is hinged to the left and right sliding bases 7. Further, an inclined plate 33 for receiving the falling wood end is attached inside the stand 2.

Next, a series of operations of the mortise cutting machine of the above embodiment will be described. At the time of mortise cutting, the handle 24 is operated to move the left and right housings 10 along the first horizontal guide shaft 8, and the space between the left and right vertical sawing circular saws 11 is adjusted according to the size of the mortise to be processed. Say it. When the housing 10 is moved, the cover main body 27 is fixed to the first horizontal guide rod 8, so that the cover main body 27 is irrespective of the position on the horizontal guide shaft 8 of the housing 10 by the vertical sawing saw. 11 can be covered. Further, when adjusting the movement of the housing 10, the housing 10 moves relative to the cover body 27, and the holding plate 30 protruding left and right from the cover body 27 slides while contacting the rear wall 10a of the housing 10.

Further, the work material A is sent to a position right below the circular saws 11 and 12 by a predetermined length, and is sandwiched and fixed by a vise 3. Then, the operation lever 6 is pushed down. As a result, the left and right housings 10 descend along the vertical guide shaft 4, and the vertical sawing circular saw 11 and the horizontal sawing circular saw 12 perform mortise cutting on the workpiece A.

Although the wood ends may be scattered due to mortice cutting, the cover body 27 prevents the wood ends from jumping out of the machine. Further, since the cover main body 27 is only fixed to the lateral guide shaft 8 and is not integrated with the housing 10, the impact due to the wooden end colliding with the cover main body 27 is not transmitted to the machine main body.

[0024]

[Effect of the device]

 Since the present invention is configured as described above, a vertical sawing circular saw, a horizontal sawing circular saw integrated by a housing, and a tenon slicing machine in which two sets of these driving units are movable left and right are also provided. It is possible to properly cover the left and right vertical saws to maintain safety and prevent scattering of wood ends between the two housings.

Further, the cover body is only fixed to the lateral guide shaft and is not integrated with the housing, so that the impact due to the wooden edge colliding with the cover body is prevented from being transmitted to the machine body. be able to.

[Brief description of drawings]

FIG. 1 is a front view of a mortise cutter equipped with a safety cover device for a vertical saw according to the present invention.

FIG. 2 is a right side view of the mortise cutting machine.

FIG. 3 is a rear view of the mortise cutting machine.

FIG. 4 is a partial cutaway side view of the position adjusting mechanism of the mortise cutting machine seen from the same direction as that in FIG.

FIG. 5 is a partially cutaway rear view of the position adjusting mechanism of the mortise cutting machine seen from the same direction as in FIG.

FIG. 6 is a partially cutaway side view of the safety cover and its vicinity seen from the same direction as in FIG.

7 is a partially cutaway rear view of the portion of FIG. 6 viewed from the same direction as FIG.

FIG. 8 is a partially cutaway perspective view showing the relationship between the safety cover and the housing.

[Explanation of symbols]

 1 ... Safety cover device for vertical sawing saw 4 ... Vertical guide shaft 7 ... Sliding base 8 ... Horizontal guide shaft 10 ... Housing 11 ... Vertical sawing saw 12 ... Horizontal sawing saw 13 ... Drive unit 27 ... Cover body 30 ... Presser plate

Claims (1)

[Scope of utility model registration request] 1. A safety cover device for a vertical saw circular saw in a tenon slicing machine, wherein a drive unit having a pair of vertical saw and horizontal saw is supported by left and right vertical guide shafts so as to be movable up and down.
The cover body of the safety cover covers side surfaces of the two vertical sawing circular saws within a moving range along the lateral guide axes of the two vertical sawing circular saws, and an upper portion of the cover body has an upper portion of the lateral guides. A safety cover device for a vertically sawing circular saw in a mortise cutter, which is fixed to substantially the center of a shaft, and a side portion of the cover body slidably abuts on the housing via a pressing plate.