JPH07703U - Spare blade type canna - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a replaceable blade type planer in which replacement blades can be easily replaced and the stock removal can be adjusted easily. [Structure] A blade guide slope 5 is formed on the upper surface of a planer, and a blade holding mechanism 7 is arranged along the slope 5. Blade holding mechanism 7
Is a base portion 12 arranged along the slope 5, and is swingably attached to the base portion 12, and the tip portion 41 of the base portion 12 is larger than the base portion 12.
Includes a blade holding plate 8 extending downward, and a spring portion 15 interposed between the base 12 and the blade holding plate 8 to press the blade holding plate 8 against the side surface of the replacement blade 6. Further, the base portion 12 is provided with a projection margin adjusting screw 14. By turning the screw 14, the margin of the spare blade 6 can be adjusted.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention relates to a replaceable blade planer.

[0002]

[Prior art]

 Since the cutting edge of the planer loses its sharpness during use and its ability to cut the object to be cut such as wood decreases, it is necessary to remove the blade and polish it appropriately. However, this polishing requires skill and is inconvenient for continuous use of the canna. Therefore, in order to solve such a problem, various replaceable blade type planers using materials such as cutter blades that can be easily replaced have been proposed.

[0003]

[Problems to be solved by the device]

 When performing work using the above-mentioned conventional replaceable blade planer, it may take time to replace the blade, which impairs work efficiency and smoothness. This is because the conventional blade-holding mechanism of the replaceable-blade planner usually uses screws to hold the blades securely, so replacing the blades requires loosening and tightening the screws. Also, once the blade is tightened, if the position is defective, it is necessary to repeat the above work for repair.

Further, there is a drawback that the screw portion becomes ridiculous while the blade is replaced, and a strong force is gradually required for tightening. Also, when adjusting the protruding amount in the working groove of the blade, it is necessary to tighten the screw after determining the protruding condition of the blade, which makes it difficult to finely adjust the protruding amount. In view of this, the present invention aims to eliminate such drawbacks and improve work efficiency by providing a replaceable blade type planer capable of easily changing the blade and adjusting the stock removal.

[0005]

[Means for Solving the Problems] An action groove is formed on the bottom surface of the canna table, and a blade guide slope that communicates with the above action groove is formed on the top surface of the canna table. In a replaceable blade-type planer, in which the replaceable blade is arranged so as to face the action groove, and the slope has a blade retaining mechanism for retaining the replaceable blade, the blade retaining mechanism is arranged along the slope. Has a base portion arranged as a base, a blade holding plate swingably attached to the base portion, and a spring portion interposed between the base portion and the blade holding plate. The blade holding mechanism has a function of mounting the entire blade holding mechanism on the canna table, and the lower surface of the working groove side of the blade serves as a back rest contacting the back of the replacement blade. It extends below the lower surface of the base, and the replacement blade runs along the lower surface of the base. The tip part is a blade pressing part that presses the side surface of the replaceable blade when placed, and has an operating part at the rear, and the spring part is the side surface of the replaceable blade that replaces the holding plate. It is characterized in that it has the function of pressing against.

Further, in the above-mentioned replaceable blade planer, the base portion has two or more constituent parts, and at least one constituent part is fixed to a slope, and in the working groove of the cutting edge of the replaceable blade. At least one other component may be slidably arranged in the one component so as to adjust the stock removal, and the components may be screwed together.

In addition, in the above-mentioned replaceable blade planer, the holding plate is made of a sponge or rubber so as to securely hold the blade and prevent unstable movement at a portion for pressing the replaceable blade. You may have an elastic body.

[0008]

[Action]

 According to the invention as set forth in claim 1, the blade can be replaced by an inclined surface on the operation portion on the side opposite to the tip end portion of the holding plate that presses the blade with the attachment portion to the base portion interposed. The blade pressing part is opened in a direction away from the slope by applying a force in the direction close to, then the blade is replaced, and the applied force is gradually loosened so that the part pressing the blade becomes a slope. It can be done in a short time by closing again in the direction of approaching.

According to the invention of claim 2, the base of the blade holding mechanism is composed of two or more constituent parts, and at least one of the constituent parts other than the constituent parts fixed to the slope is Since the screw is connected to the fixed component by screwing, the portion can be slid along the longitudinal direction of the planer by rotating the screw. As a result, the lower surface of the base portion, which is in contact with the spine of the replacement blade, also slides, so that the protrusion in the working groove of the blade held by the blade holding mechanism can be finely adjusted. .

According to the third aspect of the present invention, the blade holding plate holds the replacement blade at the tip end thereof, and the blade made of metal or ceramic is used for the blade holding plate made of metal or plastic. Since a sponge, which has a stronger frictional force than rubber, etc., and an elastic body such as rubber are arranged, the replacement blade can be reliably held even if the reaction force of the spring is not so strong.

[0011]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view showing an embodiment of the present invention, and FIG. 2 is a plan view showing a state where the blade holding plate 8 of FIG. 1 is seen through. Explaining with reference to FIGS. 1 and 2, the replaceable blade planer has a concave groove 3 as a working groove formed on a bottom surface 2 of a planer stand 1. The groove 3 is formed so as to extend parallel to the longitudinal direction of the bottom surface 2, and its cross-sectional shape is substantially concave.

A V-shaped notch is formed on the upper surface 4 of the canna table 1 when viewed from the side surface of the canna table 1 (for example, the front side in FIG. 1), and one slope of the notch serves as a blade guide slope 5. Has been done. The blade guide slope 5 communicates with the groove 3 described above. A replacement blade 6 is arranged on the blade guide slope 5, and the replacement blade 6 is pressed and held from above by a blade holding plate 8 of a blade holding mechanism 7 attached to the blade guide slope 5.

The blade holding mechanism 7 has two mounting long holes 9 a and 9 b, which are inserted into the long holes 9 a and 9 b from above and which are respectively screwed into the blade guide slope 5. It is attached by means of screws 10a and 10b. Since these 9a and 9b are oblong holes, the blade holding mechanism 7 can be moved in the longitudinal direction of the planer 1 along the blade guide slope 5 by the length of the oblong holes if the mounting screws 10a and 10b are loosened. It is slidable.

Further, with reference to FIG. 1 in particular, the canna table 1 according to this embodiment is provided with anti-slip grooves 11a and 11b on both front and rear side surfaces thereof. When the operator holds the planer 1, the groove 11a hits the middle finger or the ring finger, and the groove 11b hits the master finger. Therefore, the recessed strips 11a and 11b have the effect of making the planer stand 1 less slippery and easier to hold.

The replaceable blade planner according to this embodiment is suitable for operations such as chamfering of board boards such as wall board and ceiling board, soaking, and mortise cutting because it has the above-mentioned configuration. Next, the blade holding mechanism 7 will be described in detail with reference to FIGS. 2 and 3. FIG. 3 is a partial view schematically showing a central cross section taken along the line AA of FIG.

The blade holding mechanism 7 includes a first base portion 12 (hereinafter referred to as “first base portion 12”) fixed to the blade guide slope 5 by screws 10 a and 10 b, and a blade guide slope 5 on the upper surface of the first base portion 12. A second base portion 13 (hereinafter referred to as a "second base portion 13") slidably arranged along the first base portion 12 and the second base portion 13 and connecting them together. A blade holding plate 8 swingably attached to the second base 13 above the second base 13, and a tip below the blade holding plate 8 interposed between the second base 13 and the blade holding plate 8. And a torsion spring 15 that acts so as to press the end portion 41 against the side surface of the replacement blade 6.

The first base 12 has a function of mounting the entire blade holding mechanism 7 on the blade guide slope 5. The bottom surface of the second base portion 13 is in contact with the top surface of the first base portion 12, and the locking portions 16a, 16b, 16c, and 16d extending upward from the first base portion 12 slide in the longitudinal direction of the canna table 1. It is movably locked and is coupled to the first base 12 by a projection allowance adjusting screw 14 that penetrates the first base 12 and the second base 13 in the longitudinal direction of the planner table 1. . Further, the second base portion 13 has a lower surface on the working groove side as a back support portion 17 that contacts the back of the replacement blade 6, and the replacement blade 6 is displaced from the back support portion 17 in the direction of the second base portion 13. It is deterred not to.

The blade holding plate 8 is attached to the second base 13 at the supporting portion 18. The support portion 18 is formed so as to extend upward from the second base portion 13 and the protrusion portions 19R and 19L, and extend downward from the blade holding plate 8 so as to be located outside the protrusion portions 19R and 19L, respectively. The protrusions 20R and 20L, the torsion springs 15 disposed inside the protrusions 19R and 19L, and the shaft portion 21 penetrating the shafts and pivotally mounted.

Here, with particular reference to FIG. 3, the lower end portion 41 of the blade holding plate 8 and the rear end portion 22 a of the torsion spring 15 and the front side in a natural state in which no force is applied. Since the side end 22b and the side end 22b have elastic forces that repel each other, the side edge of the replaceable blade 6 is pressed against the side surface of the replaceable blade 6 so as to press the replaceable blade 6 against the blade guide slope 5 with the supporting portion 18 as a fulcrum. Has been done.

The blade holding plate 8 has an arbitrary portion on the right side of the support portion 18 as an operation portion 42. When the operating portion 42 is pressed from above in the A1 direction, the torsion spring 15 has an elastic force, so that the operating portion 42 of the blade holding plate 8 moves in the M1 direction. As a result, the tip end portion 41 of the blade holding plate 8 moves in the direction of M2 with the supporting portion 18 as the fulcrum, and the blade holding plate 8 is consequently positioned at the position shown by the broken line. Therefore, the spare blade 6 is freed from being pressed by the blade guide slope 5 by the tip portion 41 of the blade holding plate 8 and is in a free state, so that the spare blade 6 can be replaced and the blade position can be adjusted using fingers or the like. , It can be done as the worker wants.

Further, the first base portion 12 and the second base portion 13 are connected to each other by a feed allowance adjusting screw 14 which penetrates the first guide portion 12 and the second base portion 13 along the blade guide slope 5. Therefore, when the protrusion allowance adjusting screw 14 is rotated in the direction A2, the first base 12 is fixed to the blade guide slope 5, so that the second base 13 moves in the direction M3 as indicated by the broken line. Move to. Then, the replacement blade 6, which is in contact with the back support portion 17 of the second base portion 13 and the back, is pushed and moved to the position indicated by the broken line in the direction of M4 by the movement of the base portion 13.

On the other hand, on the contrary, if the projection allowance adjusting screw 14 is rotated in the opposite direction to A2, the base portion 13 and the replacement blade 6 move to the original position or to the right or left of the original position. It can be done. As described above, by simply rotating the protrusion allowance adjusting screw 14, the protrusion allowance of the replaceable blade 6 in the opening 24 where the blade guide slope 5 communicates with the working groove can be adjusted easily and delicately. It is possible to easily adjust the degree of shaving of the work to be cut.

It should be noted that the tip holding portion 41 of the blade holding plate 8 is made of a material such as rubber or sponge, which has a stronger frictional force than the material of the blade holding plate 8, such as metal or ceramics, at the portion in contact with the side surface of the blade 6. By fixing and interposing the elastic body 23, the replacement blade 6 can be prevented from operating in an unstable manner, and the replacement blade 6 can be held more reliably and firmly. It is also possible to prevent that only the spare blade 6 slips and shifts and does not move together with the blade holding plate 8 when returning to the position of.

Next, description will be made with reference to FIG. FIG. 4 is a plan view of another embodiment of the present invention in which the blade holding mechanism is simpler than that seen in FIGS. More specifically, the base portion 25 of the blade holding mechanism is a single plate structure such as an iron plate, and the left side portion is bent along the left side surface 27 of the canna table 26, and is perpendicular to the left side surface 27. Further, it is fixed by a screw 29 that penetrates the bending portion 28 of the base portion 25 and is screwed into the left side surface 27. By having the bent portion 28, the left side of the upper surface of the base portion 25 is narrow, and the left side of the base portion 25 can be fixed even if there is no space for disposing screws. Further, the screw 29 may be a screw having a large screw head, instead of an ordinary screw rotated by using a screwdriver.

On the other hand, the right side of the base portion 25 is fixed to the blade guide inclined surface 30 by a screw threaded into the blade guide inclined surface 30 through the base portion 25. This right side portion may be bent along the right side surface 32 like the left side. Next, description will be given with reference to FIG. 5 and FIG. 6 in addition to FIG. 5 is a bottom view of still another embodiment of the present invention, and FIG. 6 is a view schematically showing a cross section taken along line BB of FIG.

In the embodiment of FIG. 4, as shown in FIGS. 5 and 6, at least a working groove having a substantially V shape is used to adjust the protruding amount of the replacement blade 33 in the V groove 40. On one of the action surfaces 34, a tension plate 35 such as an iron plate having elasticity that is attached along the action surface 34 may be attached. The attachment plate 35 is fixed to the working surface 34 at the shaded portion 36, and is in swingable contact with the working surface 34 at the mesh portion 37. Further, as shown in FIG. 6 in particular, the meshed wire portion 37 of the tension plate 35 is in contact with the lower end portion of the screw 39 inserted from the upper surface 38 of the planer to the working surface 34.

Therefore, when the screw 39 is screwed in as shown by the broken line, the meshed wire portion 37 does not float up as shown by the broken line by the amount of the screwed-in portion. As a result, the position of the working surface 34 becomes higher than that of the replacement blade 33, so that the replacement allowance of the replacement blade 33 is reduced and the allowance can be adjusted without moving the replacement blade 33 itself. Further, when the screw 39 is returned to the original position, the mesh line portion 37 of the tension plate 35 will re-apply to the action surface 34 again due to the elastic force acting in the direction close to the action surface 34 (direction in which the bending returns). It comes into contact.

Even in the replaceable blade type planers described with reference to FIGS. 1 to 3, the action groove formed on the bottom surface of the planer table has a V-shaped V shape as shown by 40 in FIGS. 5 and 6. It may be a groove.

[0029]

[Effect of device]

 Since this invention is configured as described above, the blade can be replaced with one touch. In addition, readjustment when the position of the blade is defective and movement of the blade for cutting by another part when the sharpness of one part of the blade is poor can be performed very easily and in a short time.

Further, since the protruding amount of the blade in the working groove can be finely and easily adjusted, the depth of cutting the material can be adjusted as the operator desires. Further, since the replacement blade can be stably and reliably held, it is possible to prevent the blade from falling off and the cutting surface from becoming irregular during the work.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a plan view of the blade holding plate of FIG. 1 seen through.

FIG. 3 is a partial view schematically showing a central cross section taken along the line AA of FIG.

FIG. 4 is a plan view of another embodiment of the present invention.

FIG. 5 is a bottom view of still another embodiment of the present invention.

6 is a diagram schematically showing a cross section taken along line BB of FIG. 5. FIG.

[Explanation of symbols]

 1 Canna Table 2 Canna Table Bottom 3 Concave Groove (Working Groove) 4 Canna Table Top 5 Blade Guide Slope 6 Replacement Blade 7 Blade Holding Mechanism 8 Blade Holding Plate 12 1st Base 13 2nd Base 14 Output Allowance Adjusting Screw 15 Spring 17 Back support part 23 Elastic body 41 Blade holding plate tip part 42 Blade holding plate operating part

Claims (3)

[Scope of utility model registration request] 1. A working groove is formed on the bottom surface of the planer, and a blade guide slope that communicates with the working groove is formed on the top surface of the planer, and the cutting edge faces the working groove on the slope. In the replacement blade type planer, in which the replacement blade is arranged, and the slope is provided with a blade holding mechanism for holding the replacement blade, the blade holding mechanism is a base arranged along the slope. And a blade holding plate swingably attached to the base, and a spring part interposed between the base and the blade holding plate, the bottom of the base is in contact with the slope, and the blade holding It has the function of mounting the entire mechanism on the canna table, and the lower surface on the working groove side is the back rest part that contacts the spine of the replacement blade. When it extends downward and the replacement blade is placed along the lower surface of the base, The tip portion is a blade pressing portion that presses the side surface of the replacement blade, and has an operation portion at the rear, and the spring portion has a function of pressing the holding plate to the side surface of the replacement blade. Spare blade type canna characterized. 2. The replaceable blade planner according to claim 1, wherein the base portion has two or more constituent parts, and at least one constituent part is fixed to an inclined surface, and the action of a cutting edge of the replaceable blade is provided. At least one other component is slidably disposed in the one component so as to adjust the projection margin in the groove, and each of the components is screwed to each other. Expression Canna. 3. A replacement blade type planner according to claim 1, wherein the holding plate is a sponge, rubber or the like so as to securely hold the blade and prevent unstable movement at a portion for pressing the replacement blade. A replaceable blade planer having the elastic body of.