WO2014196037A1

WO2014196037A1 - Machining device for woodworking

Info

Publication number: WO2014196037A1
Application number: PCT/JP2013/065596
Authority: WO
Inventors: 俊介渡邉; 吉田　優
Original assignee: オトロデザイン株式会社
Priority date: 2013-06-05
Filing date: 2013-06-05
Publication date: 2014-12-11

Abstract

Provided is a machining device, which has a well-balanced structure and exhibits favorable usability, in which deviation due to use does not occur easily, and with which the extent of protrusion of the cutting tool can be accurately adjusted. A device, in which an electric tool (14) is set on the lower side of a table (11) that configures a work bench and which performs machining using a bit that is provided so as to allow protrusion and retraction from above the work surface from an opening (11a) made in the table, is equipped with: a pair of parallel left and right hoisting rails (20l, 20r) installed on the supports (12) of the table; a lift (22), which has movable sliding sections (21l, 21r) that engage with the pair of left and right hoisting rails, has a structure that is integrated with said left and right sliding sections, and supports the load of the electric tool; and a hoisting arm (24) that is pivotally supported on the left and right sliding sections of the lift. The hoisting arm has a lever mechanism and is configured so that the fulcrum of the lever mechanism is set on fulcrum members (30l, 30r) that are swingably provided on the supports.

Description

Woodworking processing equipment

The present invention relates to a woodworking processing apparatus in which a power tool is installed on the lower side of a table constituting a work table, and processing is performed with a bit provided on a work surface so as to be able to appear and retract from an opening opened in the table. .

Electric tools such as trimmers and routers used for woodworking are one of the most popular tools in the field of so-called do-it-yourself, such as Do-it-yourself. Conventionally, in order to perform processing using this type of electric tool, the motor part of the tool body is fitted to the mounting part, and the bolt is tightened and loosened to simply move up and down, or the rack and pinion mechanism moves up and down. Methods have been taken. However, it is not easy to adjust the amount of processing inside and outside 1 mm, and there is a problem that chips and dust accumulate in the rack groove. In addition, those equipped with a fine adjustment method using a bar screw become an excessively precise mechanism, and sufficient maintenance is required to maintain the performance.

There is, for example, Japanese Patent Laid-Open No. 9-309101 as a mechanism and a device related to blade feeding in general tools. In the present invention, when the moving lever is rotated, the slide frame is provided so as to move on the guide rail via the link, and the drill unit attached to the slide frame can be moved forward and backward. While the operator can hold the drill unit with one hand and turn the vise adjustment handle with the other hand, this type of link mechanism provides good operability, but the cutting amount must be accurately defined. Is difficult. Further, since the drill unit is attached to the slide frame via the column, it is a cantilever structure, and it cannot be said that it is suitable for accurate feed of the drill unit.

Therefore, the applicant has developed a device that can easily determine the optimal protruding position while estimating the protruding amount of the blade by one-hand operation. This device is easy to operate and can accurately define the amount of cutting. However, it is a lifting mechanism only on one side, and it is usually designed for right-handed use, so it is difficult for left-handed users to use it. . In addition, since the power tool is heavy, a mechanism on one side is likely to cause structural problems, and it may be difficult to maintain the balance when a processing load is applied. In order to overcome these problems, it was pointed out that the structural strength of the entire device had to be increased.

JP 9-309101 A

The present invention has been made by paying attention to the above points, and the problem is that it has a well-balanced structure called a left-right symmetric structure, exhibits good operability, is less likely to be distorted by use, and the amount of protrusion of the blade It is providing the processing apparatus for woodworking in the cutting machine which can adjust correctly. Another object of the present invention is to provide a woodworking processing apparatus that can be easily attached to a commercially available electric tool of each company.

In order to solve the above problems, a woodworking having a configuration in which a power tool is installed on the lower side of a table constituting a workbench, and machining is performed by a bit provided so as to be able to appear and retract on a work surface from an opening opened in the table. For the processing apparatus, a pair of left and right parallel lifting rails attached to a work table support, and a slide part that engages and moves with the pair of left and right lifting rails on the left and right, An elevating body integrated with the slide part on both the left and right sides and having a structure for supporting the load of the electric tool, and an elevating arm pivotally supported by the left and right slide parts of the elevating body so as to be rotatable by a support shaft The lifting arm has a lever mechanism, and the lever of the lever mechanism is set to a fulcrum member swingably provided on the support side.

The woodworking processing apparatus of the present invention is mainly intended for electric tools such as trimmers or routers. The electric tool is equipped with a drive mechanism composed of an electric motor or the like, and is composed of a tool body used by attaching a so-called bit to a rotating shaft protruding at one end thereof, and a base member provided on the tool body. The rotating shaft is provided so as to be movable in a direction parallel to the axial direction of the rotating shaft by the left and right slide shafts. Although the size of the electric power tool is various, the present invention can cope with a relatively large hand-held tool having a weight of several kilograms. *

The woodworking processing apparatus of the present invention has a work table, and the work table is composed of a table for providing a work surface for processing work and a support body thereof. It is assumed that the electric tool is installed on the lower side of the table and the bit is provided on the work surface so as to be able to appear and disappear from an opening opened in the table. In the above configuration, the space below the table is used as a place where the electric tool or the like is disposed so as to be movable up and down. That is, in the apparatus of the present invention, a work table having a space for moving the electric tool up and down by moving it up and down below the table is required.

The apparatus of the present invention has a pair of left and right parallel lifting rails attached to the support of the work table having the above-described configuration, and slide parts that are movable by engaging with the pair of left and right lifting rails on the left and right. The elevating body integrated with the left and right slide parts on both the left and right sides and having a structure for supporting the load of the electric tool, and the left and right slide parts of the elevating body are pivotally supported by the support shaft. And an elevating arm. The lifting rail, the lifting body having the slide part on the left and right, and the lifting arm constitute a lifting mechanism.

The above lifting arm constitutes a lever mechanism. As the lever mechanism, for example, there is a lever mechanism having the left and right support shafts as an action point, an intermediate portion of the arm as a force point, and a point between the force point and the action point as a support point. It is desirable to adopt a configuration that is pivotally supported by a fulcrum member that is swingable in the front-rear direction. In other words, in the device of the present invention, an elevating mechanism having a pair of elevating rails and slide portions on the left and right sides is installed, and the left and right slide portions are connected and integrated so as to be able to elevate at the same distance at the same distance. It has a configuration in which it is coupled by a lifting arm of a size to transmit and the operation of the arm is transmitted by a lever mechanism.

The electric power tool has a base member provided on the tool main body so as to be movable in a direction parallel to the axial direction of the rotary shaft, and is attached to the lower surface of the table with the base member facing upward, while the side surface facing downward of the tool main body Is placed opposite to the upper surface of the lifting body, and the screwing location on the side is used to support the load of the tool body, and the lifting and lowering position is adjusted to align the load support point with the screwing location. The body may be provided with a position adjusting mechanism, and a support member in contact with the screwing location may be provided in the position adjusting mechanism. In order to support the power tool, it is necessary to select a location with high strength even on the power tool side, but the screwing location is a portion that can be used as such a location, and the drive mechanism consisting of a motor etc. It is typically screwed on the side that becomes. Therefore, this aspect is preferable in order to increase the degree of freedom of supporting the electric power tool in the apparatus of the present invention, since a screw fixing structure common to many electric power tools can be used with a slight position adjustment.

Also, when used, the lifting body is urged upward to follow the movement of the power tool, and the bit position can be finely adjusted in the upper position. On the other hand, when adjusting the support position according to various electric tools by the position adjusting mechanism, it is necessary to lower the elevating body to a position where the work can be easily performed, and therefore, a variable urging means is provided. A coil spring is used as the variable urging means, and the upper end thereof is attached to the support body side of the table via a rotating arm, and the lower end thereof can be attached to the lifting body. This variable urging means can change the tension of the coil spring by rotating the rotary arm up and down, and may be provided only on the left and right sides of the lifting body or on both sides.

As described above, since the present invention includes a lifting mechanism having a symmetrical structure, a well-balanced structure and good operability can be obtained by operating the arm. In the machining operation, the amount of protrusion of the blade is accurately adjusted, and there is an effect of enabling high-precision machining. Furthermore, in the present invention, since the screwing point is used to support the load of the electric power tool, the effect of being easily attached by adjusting the supporting position according to the electric power tools of each company that is commercially available. Play.

Hereinafter, the present invention will be described in more detail with reference to the illustrated embodiments. FIG. 1 shows an example of a woodworking processing apparatus 10 according to the present invention, and this apparatus 10 has a work table composed of a table 11 and a support 12 for providing a work surface in processing operations. . The support body 12 includes left and right side plate portions 12l and 12r and a bottom plate portion 13, and a space surrounded by the left and right side plate portions 12l and 12r and the bottom plate portion 13 can be provided with a power tool 14 and a lifting mechanism 25 described later. And the required strength.

In the work table, the electric tool 14 is installed on the lower side of the table 11, and the bit 14b is provided on the work surface through an opening 11a opened in the table 11. The illustrated electric tool 14 is provided with a drive mechanism comprising an electric motor or the like in the tool body, and a bit 14b is attached to a rotating shaft protruding from one end thereof by operating a collet chuck 14a. The illustrated bit 14b is for centering and is used for alignment.

A base member 15 is provided in the tool body. The base member 15 is provided so as to be movable in a direction parallel to the axial direction of the collet chuck rotating shaft along the slide shaft 16 on the left and right of the rotating shaft, and has a built-in spring. Is biased to the maximum stretched state. Therefore, the base member 15 is configured to be retracted as the bit 14b cuts the work by applying the base member 15 to the work in the hand-held work away from the present invention and further pressing the work. The electric tool 14 is configured such that the base member 15 is disposed upward and attached to the lower surface of the table 11, while the side surface 14 c facing downward of the tool body is disposed opposite to the upper surface of the lifting body 22 (see FIG. 4). Reference numeral 17 denotes a grip for hand-held work, 18 denotes a switch, and 19 denotes a power cord.

The apparatus 10 according to the present invention includes a pair of left and right parallel lifting rails 20l and 20r attached to a support 12 of a work table, and a slide unit that engages and moves with the pair of left and right lifting rails 20l and 20r. A lifting body 22 having a structure having 21l and 21r on the left and right, coupled to and integrated with the pair of left and right slide parts 21l and 21r on both the left and right sides, and supporting the load of the power tool 14; An elevating arm 24 pivotally supported by pivots 23l and 23r on left and right slide portions 21l and 21r is provided (see FIG. 3).

In order to enable the left and right slide parts 21l and 21r to be lifted and lowered at exactly the same distance at the same time, they are connected and joined by a lifting arm 24 having a size to be integrated. It is configured to transmit to the slide portions 21l and 21r. An operation handle 24 a is attached to the center of the lifting arm 24. The elevating rails 20l and 20r, the elevating body 21 having the slide portions on the left and right, and the elevating arm 24 constitute an elevating mechanism 25.

As shown in detail in FIG. 3, the lifting rails 20l and 20r are attached in parallel to the opposing inner surfaces of the left and right side plate portions 12l and 12r, and a plurality of rail portions 26 are provided in parallel. ing. Therefore, it is desirable that the lifting rails 20l and 20r have a substantially C-shaped or E-shaped cross section. On the other hand, the pair of left and right slide portions 21l and 21r are configured by providing a plurality of parallel groove portions 27 that engage with the rail portions 20 of the pair of left and right lifting rails 20l and 20r.

Therefore, since the engagement between the rail portion 26 and the groove portion 27 affects the smooth lifting and lowering of the lifting body 22, it needs to be processed with high accuracy. Also, in each figure, the lifting body 22 is composed of three parts, that is, a pair of left and right slide parts 21l and 21r and a horizontal central part, and is composed of separate members, and these are coupled by a coupling material 28l and 28r. It is described as an integrated structure. However, this is only an example of a possible structure, and it is a matter of course that the three parts may be formed by a single member. The bonding material 28l is provided with a contact surface 22a that defines the rising limit.

The lifting arm 24 has a lever mechanism having the left and right support shafts 23l and 23r as an action point, an intermediate part of the arm 24 as a force point, and a point between the force point and the action point as a fulcrum. The fulcrum corresponds to the portions of the support shafts 29l and 29r that are pivotally supported by the fulcrum members 30l and 30r provided on the support side in the front-rear direction, that is, swingable from the front side to the other side in FIG. Yes. The fulcrum members 30l and 30r are pivotally supported on the left and right side plate parts 12l and 12r of the support 12 at the other end by pivots 31l and 31r.

As described above, the electric tool 14 has the base member 15 provided on the tool main body so as to be movable in a direction parallel to the axial direction of the collet chuck rotating shaft, and the lower surface of the table 11 with the base member 15 facing upward. In order to support the load of the tool body, a screwing location 32 existing on the side surface 14c is used to support the load of the tool body. (See FIG. 4). Since the screwing points 32 existing on the side surface 14c are portions to which a heavy motor is attached, the screwing points 32 have sufficient strength to support the electric tool 14 and are provided at a plurality of points on the motor attachment structure. This is effective as a load support point.

In order to align the position of the load support point with the screwing location 32, a position adjustment mechanism 33 is provided on the lifting body 22, and a support member 34 in contact with the screwing location is provided on the position adjustment mechanism 33 (FIG. 5). reference). The position adjusting mechanism 33 has an adjustment base 35 having a substantially circular plane shape attached to the lifting body 22 so as to be rotatable by a support shaft 36 at the center point thereof. 37, and receiving

members

38, 38 are movably attached along the

grooves

37, 37. Therefore, the position of the support member 34 can be adjusted so as to be in contact with the screwing location by a combination of the rotation of the adjustment base 35 and the diametrical movement of the receiving

members

38 and 38. The support member 34 is formed in a tapered shape by a material such as engineering plastic.

The apparatus 10 of the present invention has a configuration in which a coil spring is used as the variable urging means 40 for assisting the movement of the elevating body 22, and the urging force can be adjusted. For this reason, the rotary arm 39 is rotatably attached to the support 12 side of the table 11 by a support shaft 39a, and a spring hook 40a is provided at the rotary end portion of the rotary arm 39 to hook the upper end of the coil spring. The lower end is attached to a spring hook 40b provided on the lifting body 22 (see FIG. 2 and the like). When the rotating arm 39 is rotated upward, the spring hook 40a is stopped by the rotation stopper 41 at a position exceeding the top dead center, and the upper posture is applied, and acts on the lifting body 22 with the maximum spring force. On the other hand, when the arm 39 is rotated downward, the spring hook 40a is in a lower position, and the lifting body 22 can be lightly pushed down by the minimum spring force. Although it is arbitrary in which position and how many variable urging means 40 are provided, the embodiment shown in FIG. 1 shows an example in which a coil spring is provided only on one left side.

When the electric tool 14 is attached to the lifting body with the above configuration, the electric tool 14 is suspended from the table portion 11 by the base member 15 and supported by the indication member 34 of the position adjusting mechanism 33 at the lower end thereof. At that time, the bit 14b is in a standby state where it does not come out on the work surface through the opening 11a opened in the table 11. The lifting body 22 can be moved upward and downward from the standby state, but in particular, a positioning member 42 is provided for stopping at the rising limit. In the example shown in the drawing, the positioning member 42 is constituted by a member screwed into an upper screw portion of the vertical axis 43 attached to the support side of the table 11. Reference numeral 44 denotes a vertical axis mounting portion, and the vertical axis 43 is provided on the inside of the support body so as to be movable up and down. The vertical axis 43 is commonly called a quick nut, and is fitted with a stopper 45 made of a member that can slide on the male screw and can be screwed with the male screw at an arbitrary position, thereby supporting the lifting body 22 from below. It is like that.

The woodworking processing apparatus 10 of the present invention configured as described above is in an intermediate state of the ascending / descending range as shown by a solid line in FIG. To perform the woodworking operation, the bit 14b protrudes from the work surface by pushing down the operation handle 24a from the state shown by the solid line in FIG. At this time, the variable biasing means 40 is placed in a higher position by rotating the rotary arm 39 upward. When the operation handle 24a is pushed down, the elevating arm 24 rotates around the support shafts 23l and 23r, the fulcrum members 30l and 30r move, the slide parts 21l and 21r rise, and the bit 14b of the electric tool 14 is placed on the table. 11 is projected on the upper surface, that is, the work surface (a chain line in FIG. 6). Therefore, if the power cord 19 is connected and the switch 18 is turned on, woodworking can be performed using an arbitrary bit.

In the operation of depressing the operation handle 24a, an action of urging the elevating body 22 upward is obtained by the lever action of the elevating arm 24, and the operation force related to the woodworking work is remarkably reduced and more accurate operation is possible. It will contribute to the realization of more precise processing. In this operation, the variable urging means 40 has the rotating arm 39 locked to the rotation stop 41 and is in an upward state, so that the elevating body 22 easily follows the upward movement of the elevating mechanism 25. Further, the upper limit of the operation in the lifting mechanism 25 can be defined by adjusting the position of the positioning member 42. That is, by rotating the positioning member 42 screwed to the vertical axis 43 and moving the position up and down, when the elevating body 22 rises to that position, the contact surface 22a collides, and further upward movement is stopped. .

Here, it is often necessary to finely adjust the position of the bit 14b when exchanging the bits. To facilitate the fine adjustment, it is convenient that the elevating body 22 can be fixed in a higher position. . In the apparatus 10 of the present invention, the positioning member 42 is manipulated to finely adjust to an appropriate height position, and the stopper 45 supported from below is slid on the bolt and pressed against the lower surface of the lifting body in the upper position. By placing in the screw connection state at that position, the lifting body can be sandwiched from above and below together with the positioning member 42 and placed in a fixed state. Therefore, after the positioning of the approximate bit 14b, it is possible to easily adjust the position to an appropriate position for the work in accordance with the bit shape. Conversely, when attaching or detaching the electric tool 14, it is necessary to lower the elevating body 22, but in this case, if the stopper 45 made of a quick nut is lowered, the elevating body 22 is lowered to that position. Can do.

When the operation handle 24a is pushed up in the intermediate state of the lifting range shown by the solid line in FIG. 7, the lifting arm 24 rotates about the support shafts 23l and 23r, and the fulcrum members 30l and 30r move and slide. The parts 21l and 21r and the lifting body 22 integrated therewith are moved downward (dashed line in FIG. 7). On the other hand, since the electric tool 14 is fixed to the table 11 by the base member 15, it does not move from its suspended position by this lowering operation. That is, a space is created between the lifting body 22 and the power tool 14 by the lowering operation in the lifting mechanism 25. Such an operation is necessary in the operation of attaching / detaching the electric tool 14 to / from the work table.

There are various types of the electric tool 14, but in the present invention, the electric tool of the type having a mounting portion for the bit 14b on one end side of a drive mechanism having an electric motor or the like and having a screwing portion on the opposite side surface. It is desirable to use 14. Since this type of electric tool 14 has the above-mentioned screwed portion on the side surface, the position adjustment mechanism 33 can adjust the position of the support member 34 to the position of the load support point, thereby making it impossible to load the electric tool 14. It will be supported appropriately.

It is front explanatory drawing which shows an example of the woodworking processing apparatus which concerns on this invention. An example of the raising / lowering mechanism in an apparatus same as the above is shown, and it is front explanatory drawing regarding the left side part of an raising / lowering mechanism. It is a cross-sectional explanatory drawing which expands and shows the left part of a raising / lowering mechanism similarly. It is front explanatory drawing which shows an example of the position adjustment mechanism in an apparatus same as the above. It is a plane explanatory drawing similarly. It is front explanatory drawing which shows the time of the raise in the left side part of a raising / lowering mechanism as an effect | action of the processing apparatus for woodwork which concerns on this invention. It is front explanatory drawing which similarly shows the time of a fall.

DESCRIPTION OF SYMBOLS 10 Woodworking processing machine 11 Table 12 Support body 14 Electric tool 15 Base member 16 Slide shaft 20l, 20r A pair of right and left lifting rails 21l, 21r A pair of left and right sliding parts 22

Lifting body

23l, 23r, 29l, 29r, 31l, 31r , 36 Support shaft 24 Elevating arm, 24a Operation handle 25 Elevating mechanism 26 Rail portion 27 Concave groove portion 28l, 28r Binding material 30l, 30r A pair of left and right fulcrum members 32 Screw fixing points 33 Position adjusting mechanism 34 Support member 35 Adjusting member 37 Adjusting groove 38 Receiving member 39 Upper end, 41 Lower end 40 Coil spring of variable urging means 42 Positioning member 43 Vertical axis, 44 Vertical axis mounting part, 45 Stopper

Claims

A woodworking processing device that installs an electric tool on the lower side of a table that constitutes a work table, and performs processing by a bit provided so as to be able to appear and retract on a work surface from an opening opened in the table,
A pair of left and right parallel lifting rails attached to a table support, and a slide portion that is movable by engaging with the pair of left and right lifting rails on the left and right sides. And a lifting body having a structure that supports the load of the electric tool, and a lifting arm that is pivotally supported on the left and right slide portions of the lifting body by a support shaft,
The above-mentioned lifting arm has a lever mechanism, and the fulcrum of the lever mechanism is a woodworking processing apparatus set on a fulcrum member provided on the support side so as to be swingable.
The electric power tool has a base member provided on the tool body so as to be movable in a direction parallel to the axial direction of the rotary shaft, and is attached to the lower surface of the table with the base member facing upward, while the side surface facing the tool body downward In order to support the load of the tool body, the screwing location that exists on the side surface is used.
The woodworking process according to claim 1, wherein a position adjusting mechanism is provided on the lifting body and a support member in contact with the screw fixing point is provided on the position adjusting mechanism in order to align the position of the load support point with the screw fixing point. apparatus.
In order to bias the lifting body upward so as to follow the movement of the electric tool, the variable spring has a configuration in which the upper end of the coil spring is attached to the table support through the rotating arm and the lower end is attached to the lifting body. The woodworking processing apparatus according to claim 1 or 2, further comprising an urging means.