JPH0730324Y2 - Ruler positioning device for workbench - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a ruler positioning device for a workbench for positioning a ruler at an arbitrary position on a guide rail.

[Conventional technology]

The conventional ruler positioning devices 301 and 302 provided on the table saw will be described with reference to FIGS. 11 and 12.

The table saw is a working machine that has a workbench and a circular saw, and cuts a workpiece with the circular saw.
Further, when cutting the processed material, a ruler for pressing one end of the processed material to determine the cut dimension of the processed material is provided. This ruler is installed between a front guide rail and a rear guide rail, which are arranged in the left-right direction in front of and behind the table saw.

That is, as shown in FIG. 11, the conventional ruler positioning device 301 for positioning the ruler 310 is such that the fixing device 303 is provided in the front guide portion 306 of the main body portion 300 of the ruler 310.
When it is desired to stop the 310 at an arbitrary position on the front guide rail 30 and the rear guide rail 31, the fixing device 303 is operated by operating the lever 309 provided on the front guide portion 306.
Tightens the ruler 310 at an arbitrary position on the front guide rail 30.

FIG. 12 shows another conventional ruler positioning device 302. This ruler 320 includes front guide parts 30 at both ends of the main body part 300.
7 and the rear guide part 308 are provided with fixing devices 304 and 305 respectively, and when it is desired to fasten the ruler 320 to an arbitrary position on the front and rear guide rails 30 and 31, the lever 309 provided on the front guide part 307 is operated. By doing so, the fixing devices 304 and 305 connected to each other by the connecting rod 315 of the main body 300,
The ruler 320 is fastened to arbitrary positions on the front and rear guide rails 30 and 31.

[Problems to be solved by the device]

In the conventional ruler positioning device 301 shown in FIG. 11, since the fixing device 303 is provided only on the front guide portion 306 side,
The rear guide portion 306a was not fastened to the rear guide rail 31, and thus the fastening state was unstable.

Further, in another conventional ruler positioning device 302 shown in FIG. 12, fixing devices 304 and 305 are provided at both front and rear ends of the main body 300, but when the fixing devices 304 and 305 are locked to the front and rear guide rails 30 and 31, respectively. Since both fixing devices 304 and 305 are locked at the same timing, even if the ruler 5 is twisted from the front and rear guide rails 30 and 31 at a right angle, it is fixed as it is, so that the ruler 5 is placed on the front and rear guide rails 30 and 31. There was a problem that it could not be fixed accurately.

The present invention has been made in view of the above circumstances, and an object thereof is to obtain a ruler positioning device for a workbench that can accurately position the ruler at any position on the front and rear guide rails with a single lever operation. To do.

[Means for Solving the Problems]

The present invention is directed to a front guide rail and a rear guide rail, which are arranged in the left-right direction in the front and rear of a work table, a front guide section and a rear guide section that move on the front guide rail and the rear guide rail, and the front guide rail. A ruler positioning device for a workbench, comprising: a fixing device capable of positioning the rear guide part and the rear guide part on the front and rear guide rails; and a main body part installed between the front guide part and the rear guide part in the previous term. The fixing device includes an operation portion provided on one of the guide portions,
A holding member that presses and holds one of the guide rails by the operating portion, a connecting member that is provided in the longitudinal direction of the main body portion and that is axially moved by the operating portion, and an axial direction of the connecting member. A fastening member that fastens the other guide portion to the other guide rail by movement, and the holding member holds the one guide rail by the operation of the first half of the operation portion, and the second half of the operation portion. By the operation, the holding member fixes the one guide rail, and the connecting member is moved so that the fastening member fixes the other guide rail; they are arranged in the left-right direction in front of and behind the workbench. Front guide rail and rear guide rail, front guide section and rear guide section that move on the front guide rail and rear guide rail, and the front guide section and In a ruler positioning device for a workbench, which includes a fixing device capable of positioning a rear guide part on the guide rail, and a main body part provided between the front guide part and the rear guide part, the fixing device is The connecting rod provided in the longitudinal direction of the main body, the eccentric cam rotated by the lever, and the eccentric cam are fitted to the eccentric cam, and when the eccentric cam is rotated by the first half operation during the series of operations of the lever, When the front guide rail is pressed to hold the front guide rail against the front guide rail and the eccentric cam is further rotated by a latter half operation during a series of operations of the lever, the front guide rail is moved to the front guide rail. A pressing member for further pressing and fixing to the front guide rail and for pressing and moving the connecting rod elastically held toward the front guide portion toward the rear guide portion side and a rear guide portion are provided. , Characterized by comprising a locking member to be engaged to the rear guide rails by the movement of the pressing member.

[Action]

In the work table ruler positioning device according to the present invention, in order to accurately position the ruler at an arbitrary position on the guide rail, the positioning of the ruler should be performed in two steps despite one lever operation. There is. First, in the first step, the front guide portion is pressed against and held by the front guide rail, so that the ruler is straightened at a right angle to the front guide rail. Then, in the second stage, the front guide part is securely fastened to the front guide rail, and the connecting member is moved to securely fasten the rear guide part to the rear guide rail. As a result, the fixing device accurately positions the ruler at an arbitrary position on the front and rear guide rails.

In another ruler positioning device of the present invention, first, during a series of operations, the eccentric cam is rotated by the first half operation to press the pressing member against the front guide rail, whereby the front guide rail is guided by the front guide rail. The part is pressed and held. Next, during a series of operations, the eccentric cam is further rotated in the latter half of the operation to further press and fix the pressing member to the front guide rail, and the connecting member provided with the pressing member in the longitudinal direction of the main body is rearward. Then, the pressing force is transmitted to the locking member of the rear guide portion. The locking member that receives the pressing force is rotated by the support shaft and locked to the rear guide rail. As a result, the fixing device accurately positions the ruler at an arbitrary position on the front and rear guide rails.

〔Example〕

An embodiment of a ruler positioning device for a workbench according to the present invention will be described below with reference to FIGS. 1 to 10.

First, the overall structure of the table saw T having the ruler positioning device 200 for a workbench according to the present invention will be described with reference to FIGS. Table 8 As shown in Figure 8, table saw T
Has a workbench 1, which is supported on a frame 7. The workbench 1 has a front end guide rail 30 and a rear end guide rail 31 facing the front and back in the left-right direction when viewed from the operator.
And have. The circular saw table 2 is fixed to the center of the workbench 1 between the front and rear guide rails 30 and 31,
The circular saw table 2 is provided with a cover 6 for storing the circular saw.

As shown in FIG. 9 and FIG. 10, on the right side of the circular saw table 2 in the figure (FIG. 9), an auxiliary table 3 for supporting the material when processing the material is provided along the guide rails 30 and 31. It is attached so that it can slide in the left-right direction. Further, a ruler 5 is attached to the right side of the auxiliary table 3 in the figure (FIG. 9) so as to be movable in the left and right directions along the front and rear guide rails 30 and 31, and the ruler 5 is in the front and rear direction. It is arranged for. On the left side of the circular saw table 2 in the figure, a miter table 4 for guiding the processing material to the cutting position of the circular saw S is attached so as to be slidable in the left-right direction along the guide rails 30 and 31. A miter fence 60 is mounted on the 4th.

The circular saw S is rotatably attached to the holding plate 300 by a shaft 130, and a circular handle 8 is rotatably provided on the front side of the support frame 7 on the operator side, and the shaft 32 is rotated by rotating the circular handle 8. The circular saw S is caused to project above the circular saw table 2 via the, or is housed in the frame 7. Further, a tightening lever 13 is provided on the back side of the circular handle 8, and by loosening the tightening lever 13 and rotating the circular handle 8, the shaft 32 is moved along the arcuate slit 9 so that the circular saw S is moved at a desired angle. Tilt. A switch portion 14 is provided on the right side of the round handle 8 in the figure (FIG. 9),
The switch unit 14 includes an off switch 14a and an on switch 14b. The front guide rail 30 is clamped and fixed by a rail fixing lever 12 provided at a front portion of the circular saw table 2 at a distance, and the rear guide rail 30 is also provided.
Reference numeral 31 is clamped and fixed by a rail fixing lever 120.

The ruler 5 is used when cutting the processed material with the circular saw S.
This is for setting the cutting dimension, and the cutting material can be machined to a desired dimension by cutting with the circular saw S while the tip of the processing material is in contact with the ruler side surface 5a (Fig. 8). . Therefore, the ruler 5 is moved in the left-right direction in FIG. 8 to be positioned and fixed at a desired position on the front and rear guide rails 30 and 31. In FIG. 1, the ruler 5 is used to fix the ruler 5 to the front and rear guide rails 3.
2 is a front view of the front guide portion, FIG. 3 (a) is an enlarged cross-sectional view of the front guide portion, and FIG. 3 (b) is a front view of the front guide portion. FIG. 3 is a sectional view taken along line III-III in FIG. As shown in FIG. 1, a ruler positioning device 200 for positioning the ruler 5 includes a front guide rail 30 and a rear guide rail 31, which are arranged in front and rear of the workbench 1 in the left-right direction, and the front guide rail. The front guide part 201 and the rear guide part 202 which move on the 30 and the rear guide rail 31 and are locked by the screws 199a to 199d, and the front guide part 201.
Also, a fixing device 198 capable of positioning the rear guide portion 202 on the front and rear guide rails 30 and 31, and a rectangular tubular main body portion 199 provided between the front guide portion 30 and the rear guide portion 31.
Further, the fixing device 198 includes the main body 199.
Has a connecting member (lot rod 211) provided in the longitudinal direction thereof, and holds one of the guide portions in pressure contact with the guide rail by a series of operations of the operating portion (lever 204), and further, the front portion. The guide portion 201 is fastened to the front guide rail 30, and the connecting member 211 is moved and fastened to the rear guide rail 31, respectively.

As shown in FIGS. 1 and 3A and 3B, a rotatable shaft 20 is provided between the opposite side plates 202a and 202b of the front guide portion 201.
5 is supported, and an eccentric cam 206 is inserted into this shaft 205 so as to rotate integrally with the shaft 205. A tip 204a of a lever 204 for rotating the eccentric cam 206 is screwed onto the eccentric cam 206. A pressing member 207 having a concave cross section is fitted on the outer surface of the eccentric cam 206, and the eccentric cam 206 is rotated by operating the lever 204.
When rotated together with 205, the arcuate portion 208 of the pressing member 207 is eccentrically moved in the direction of the front surface 30n of the front guide rail 30. Between the arc-shaped portion 208 and the front surface 30n of the front guide rail 30,
A tightening plate 209 made of a leaf spring is provided, and the tightening plate 209 is attached in the front guide portion 201 by a screw 210. The arc-shaped portion 208 of the pressing member 207 is a tightening plate.
If you press 209, the tightening plate 209 will be in front of the front guide rail 30.
It will be pushed to 30n.

A connecting rod (lot rod 211) is arranged as a connecting member in the longitudinal direction in the main body portion 199. In order to elastically retain the rod rod 211 in the arrow direction K (front guide portion direction) K, the lot rod 211 is held. A spring engaging portion 220 is formed in a part of the above, and a spring 212 is provided in a compressed state between the spring engaging portion 220 and the main body portion 199. The lot rod 211 is always in contact with the tip portion 207a of the pressing member 207.

As shown in FIGS. 6 and 7, the rear guide portion 202 has a rotatable support shaft 213 provided therein, and a locking member (plate 214) is attached to the support shaft 213 by a bracket 213a. It is fixed so that the plate 214 can swing as shown by the arrow f. One end 214 of the plate 214
An adjusting screw 215 is screwed into a, and a guide rail engaging portion 216 is bent and formed in the other end portion 214b. The mold forming portion 217 can be locked and separated.

In addition, a roller 219 is attached to the rear guide portion 202 by a pin 218.
The roller 219 is for rolling the upper surface of the T-shaped forming portion 217 of the rear guide rail 31 to move the ruler 5. A sliding member (not shown) may be used instead of the roller 219 to slide the upper surface of the T-shaped forming portion 217. Thus, the connecting rod 211, the eccentric cam 206 rotated by the lever 204, and the pressing member 207.
And the plate 214 constitute the fixing device 198.

Next, a method of operating the ruler positioning device will be described with reference to FIG. 3 (a) and FIGS. 4 to 7. Fig. 3 (a)
FIG. 4 is a partial main sectional view showing a released state of the fixing device of the front guide part, FIG. 4 is a partial sectional view of a holding state by the fixing device in the first half operation during a series of lever operations, and FIG. ,
During a series of operations of the lever, a partial sectional view of a fastening state by the fixing device in the latter half operation, FIG. 6 is a partial main sectional view showing a released state of the rear guide portion by the fixing device, and FIG.
FIG. 11 is a partial cross-sectional view of a locked state by the fixing device in the latter half operation. After pushing the ruler 5 before fixation shown in FIG. 3 (a) to the left and right to move it to the desired position of the front and rear guide rails 30 and 31, during a series of operations of the lever 204, as shown in FIG. By depressing the lever 204 in the arrow direction G by the operation of the first half, the eccentric cam 206 is rotated clockwise about the shaft 205 to be eccentric. This allows the eccentric cam
The pressing member 207 moves in the arrow B direction by sliding the fitting surface 207b of the pressing member 207 and the pressing member 207, and the arc-shaped portion 208 urges the tightening plate 209 toward the front surface 30n of the front guide rail 30. The rear wall L of the front guide portion 201 moves in the direction of the arrow M (FIG. 3 (a)) and contacts the rear surface 30m of the front guide rail 30. In this way, the front guide rail 30 has a front surface 30n and a rear surface 30m.
Is sandwiched between the rear wall L of the front guide portion 201 and the tightening plate 209, and the front guide portion 201 is fixed to the front guide rail 30,
The movement to the left and right can be stopped. At this time, the front guide rail 30
Since the rear surface 30m and the rear wall L of the front guide portion 201 are in surface contact with each other, even if the ruler 5 is twisted with respect to the front guide rail 30 due to the movement to the left and right, the ruler 5 is straightened. Become.

Next, as shown in FIG. 5, during a series of operations of the lever 204, the eccentric cam 206 is further rotated by further pressing down in the arrow direction H by the latter half operation, and the pressing member 2
Since the arcuate portion 208 of 07 is already pressed against the front surface 30n of the front guide rail 30 via the tightening plate 209, the tip portion 207a of the pressing portion 207 resists the biasing force of the spring 212 in the arrow direction D. It moves and presses the lot rod 211 in the arrow direction E.
Then, the lot rod 211 that is pressed and moved moves from the open state shown in FIG. 6 to the state shown in FIG.
The second adjusting screw 215 is pushed backward. By pressing the adjusting screw 215, the plate 214 is rotated around the support shaft 213 in the arrow direction F (FIG. 6), and as shown in FIG. The rear guide portion 202 is securely locked to the rear guide rail 31 with the T-shaped forming portion 217 sandwiched between the guide rail locking portion 216 and the roller 219.

The adjusting screw 215 of the rear guide unit 202 is a plate.
It is for adjusting the fastening timing of 214 and the fastening force of the front and rear guide parts 201, 202.
If the screw 215 is screwed into the 11 side, the screw 215 will approach the lot rod 211 side and the locking timing will be accelerated, and the fastening force will be strengthened, and if the screw is adjusted in the opposite direction, the locking timing will be delayed and the fastening force will be weakened. Therefore, the adjusting screw 215 can be adjusted and used so as to have the best locked state and fastening force.

In addition, the fixing device 198 shown in FIG.
31 to release, move lever 204 in the direction of arrow I
By pulling up to (FIG. 5), the eccentric cam 206 is eccentric, the pressing member 207 returns to the front, and the lot rod 211 is also pushed back in the arrow direction K (FIG. 1) by the spring 212 and separated from the adjusting screw 215. . As a result, the protrusion 221 having elasticity, which is provided on the rear guide portion 202, pushes back the plate 214 by its repulsive force, and the guide rail locking portion 216 is separated from the T-shaped forming portion 217 of the rear guide rail 31. The fastening state of the rear guide portion is released.

In the ruler positioning device 200 of the above embodiment, the lever 2
04 is provided on the front guide section 201, and the front guide section 201 is pressed against the front guide rail 30 and held, and then the front guide section 201
Is fastened to the front guide rail 30, and the rear guide
Although 202 is fastened to the rear guide rail 31, as another embodiment, the components of the fixing device 198 such as the lever 204 and the eccentric cam 206 provided in the front guide portion 201 are
By attaching to the rear guide part 202, the structure is reversed, and by operating the lever 204 provided on the rear guide part 202 side, the rear guide part 202 is pressed against and held by the rear guide rail 31, and then the rear guide part. 202 back guide rail 31
The front guide portion 201 may be fastened to the front guide rail 30 by moving the connecting member 211 while fastening the front guide rail 30.

Further, the ruler positioning device 200 can be used for a workbench other than the table saw T.

[Effect of device]

In the ruler positioning device according to the first aspect, the ruler is positioned in two stages by a series of operations of the operation section. That is, the ruler can be corrected so as to be perpendicular to the guide rail by holding the holding member in pressure contact with one guide rail in the first half operation, and the holding member is fastened to the one guide rail in the latter half operation. At the same time, by moving the connecting member to fasten the fastening member to the other guide rail, the ruler can be securely fixed to each guide rail at a desired position so as to be at a right angle with a simple operation. .

Further, in the ruler positioning device according to the second aspect, the eccentric cam is rotated by a first half operation during a series of operations of the lever provided on the front guide portion to hold the pressing member in pressure contact with the front guide rail, During a series of lever operations, the latter half of the operation further rotates the eccentric cam to press and fix the pressing member to the front guide rail and press the connecting rod, and the pressing force is applied via the connecting rod to the rear guide unit. Since it is transmitted to the guide rail locking part of, the guide rail locking part that receives the pressing force will be locked to the rear guide rail, and the ruler can be securely fastened to the front guide rail and the rear guide rail. it can.

[Brief description of drawings]

1 to 10 are views showing an embodiment of the present invention. FIG. 1 is a sectional view showing the structure of a ruler positioning device, FIG. 2 is a front view of a front guide portion, and FIG. FIG. 3A is a sectional view of the front guide portion and the front guide rail in an engaged state, FIG. 3B is a sectional view taken along line III-III of FIG. 3A, and FIG. Sectional drawing which shows the holding state of the front guide rail by the fixing device of the front guide part, FIG. 5 is sectional drawing of the fastening state of the front guide rail by the fixing device of the front guide part, and FIG.
FIG. 7 is a sectional view showing an engagement state of the rear guide section and the rear guide rail, FIG. 7 is a sectional view showing a fastening state of the rear guide rail by a fixing device of the rear guide section, and FIGS. FIG. 11 is a plan view, a front view and a sectional view of the table saw, FIG. 11 is an explanatory view showing a conventional art of a ruler positioning device, and FIG. 12 is an explanatory view corresponding to FIG. 11 showing another conventional art. 1 ... Workbench, 5 ... Ruler, 30 ... Front guide rail, 31
…… Rear guide rail, 198 …… Fixing device, 201 …… Front guide part, 202 …… Rear guide part, 204 …… Operating part (lever), 206 …… Eccentric cam, 207 …… Pressing member, 200… … Ruler positioning device, 211 …… Connecting rod (lot rod), 214 ……
Locking member (plate).

Claims (2)

[Scope of utility model registration request] 1. A front guide rail and a rear guide rail, which are arranged in front and back of a work table in the left-right direction, a front guide portion and a rear guide portion which move on the front guide rail and the rear guide rail, and A fixing device capable of positioning the front guide portion and the rear guide portion on the front and rear guide rails,
In a ruler positioning device for a work table, which comprises a main body part provided between the front guide part and the rear guide part, the fixing device includes an operation part provided on one of the guide parts, and an operation part provided by the operation part. One of the holding members that holds the guide rails in pressure contact with each other, a connecting member that is provided in the longitudinal direction of the body portion and that is axially moved by the operating portion, and the other by the axial movement of the connecting member. A fastening member for fastening the guide portion to the other guide rail, wherein the holding member holds the one guide rail by the operation of the first half of the operation portion, and the operation of the latter half of the operation portion, The worktable is characterized in that the holding member fixes the one guide rail, and the coupling member is moved so that the fastening member fixes the other guide rail. Positioning device. 2. A front guide rail and a rear guide rail, which are arranged in front and rear of a work table in the left-right direction, a front guide portion and a rear guide portion which move on the front guide rail and the rear guide rail, and A ruler positioning device for a workbench including a fixing device capable of positioning a front guide part and a rear guide part on the guide rail, and a main body part provided between the front guide part and the rear guide part, wherein The fixing device includes a connecting rod provided in the longitudinal direction of the main body,
An eccentric cam rotated by a lever and fitted to the eccentric cam. When the eccentric cam rotates by the first half operation during a series of operations of the lever, the front guide rail is pressed to move the front guide portion. When the eccentric cam is further pressed and held by the front guide rail and further rotated by the latter half operation during a series of operations of the lever, the front guide section is further pressed and fixed to the front guide rail, and Pressing member for pressing and moving the connecting rod elastically held in the direction of the rear guide portion toward the rear guide portion, and locking provided on the rear guide portion and locked to the rear guide rail by the movement of the pressing member. A ruler positioning device for a work table, comprising: a member.