JPH0225667Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a brake operating device for a horizontal cursor in a track type flexible parallel ruler.

Conventionally, operating members such as an operating lever in a horizontal cursor brake operating device have been provided near the horizontal cursor or on a vertical rail that moves together with the horizontal cursor. For this reason, even if an attempt is made to fix the horizontal cursor during work, the operating member may be far from the work position, and in extreme cases, it may even be impossible to reach it in the same position. Therefore, an operating device in which the operating member can be moved along a vertical rail has been proposed, but this also only allows you to select the mounting position yourself, so it may not always be within reach. However, it was not possible to completely eliminate the above drawbacks.

Therefore, the present invention aims to provide a horizontal cursor brake operating device in which an operating member is provided on a vertical cursor that moves together with the drafting device head so that the operating member is always at hand. In this device, an interlocking bar is provided along the longitudinal direction of a vertical rail, and a horizontal cursor brake is activated by moving the interlocking bar a predetermined distance. and an interlocking bar are configured so that they can be detachably interlocked as required.

The apparatus of the present invention will be explained in detail based on the embodiments shown below. In FIG. 1, 1 is a drawing board, and a horizontal rail 2 is fixed to the upper edge of the drawing board. The horizontal rail 2 is provided with a horizontal cursor 4 that is movable in its longitudinal direction. The horizontal cursor 4 is provided with a vertical rail 3 that moves on the drawing board 1 while maintaining a right angle to the horizontal rail 2. A vertical cursor 5 is provided on the vertical rail 3 so as to be movable in its longitudinal direction, and a head 7 to which rulers 6a and 6b are attached is connected to the vertical cursor 5.

In FIG. 2, 4 is a horizontal cursor, which is movably provided below the horizontal rail via a rotatably provided horizontal roller 4a and a vertical roller 4b, and a horizontal cursor brake device is provided approximately in the center of the horizontal cursor. There is.
In the case of the embodiment, the horizontal cursor brake device includes clamping levers 11 and 1 that pivotally support intermediate overlapping portions 11a and 12a with a support shaft 13 provided approximately at the center of the horizontal cursor 4.
Consists of 2. At one end of the clamping levers 11 and 12,
Brake parts 11b and 12b that clamp the clamped piece 2a provided vertically along the longitudinal direction of the horizontal rail 2
is provided at the other end, and operation pieces 11c, 12c are provided at the other end.
is provided. The inner edges of the operating pieces 11c and 12c are opening/closing protrusion abutting edges 11d and 12 that face each other in an O-leg shape.
d, with an opening/closing protrusion 14a interposed therebetween. In addition, the operation piece part 11
A tension spring 15 is installed between c and 12c, and the opening and closing protrusion contact edges 11d and 12 are attached to the opening and closing protrusion 14a.
d is configured so as to be in pressure contact with each other. Opening/closing protrusion 14
A is provided at one end of the L-shaped opening/closing lever 14, and an upright piece 14c is provided at the other end following a support shaft 14b provided near the bent portion of the opening/closing lever 14.

In FIG. 3, 3a is a connecting member that connects the horizontal cursor 4 and the vertical rail 3. Reference numeral 16 denotes a swinging rod whose middle part is swingably supported by a pin 16a on the connecting member 3a, the lower end 16b of which is in contact with the upright piece 14c of the opening/closing lever 14, and the upper end 16c.
A long hole 16d is provided in the hole 16d. A pin 17a provided at one end of an interlocking bar 17 provided over substantially the entire length of the vertical rail 3 is fitted into the elongated hole 16d. Further, as shown in FIG. 4, a stopper 18 consisting of a ball head 18a, a spring 18b, and a spring pressure adjusting screw 18c is in contact with the lower end 16b of the swinging rod 16, and the swinging rod 16 is a brake indicated by a solid line. It is constructed so that it can be placed in the activated state or in the brake released state shown by the broken line.

On the other hand, in FIGS. 5 and 6, reference numeral 20 denotes a main body of a brake operating member according to the present invention, which is placed on the vertical cursor 5 that guides the drafting device head 7 on the opposite side of the head 7 across the vertical rail 3. It is installed. On one side of the vertical rail 3, T-shaped grooves 3b and 3c are provided vertically in parallel over almost the entire length in the longitudinal direction. The upper T-shaped groove 3b is used as an auxiliary guide for moving the operating member main body 20 along the vertical rail 3 via the slider 20c as necessary. This slider 20c is configured to be detachably attached to the operating member main body 20 with a bolt 20e. Further, in the lower T-shaped groove 3c, an interlocking bar 17 having circular holes 17b provided in a row is connected to the circular holes 17b.
b is housed so that it can be seen from the T-shaped groove 3c. Inside the operating member main body 20, a guide 20a is provided parallel to the longitudinal direction of the vertical rail 3, and a pin storage body 23 is movably provided surrounded by the guide 20a. The pin storage body 23 has an operation pin 23
a protrudes perpendicularly to the longitudinal direction of the vertical rail 3, and passes through long holes 20b and 20c having long axes parallel to the guide 20a, with one facing the T-shaped groove 3c and the other being operated. It is configured to face the pin contact plate 21d of the lever 21. Also,
Inside the pin housing 23, there is a spring 23c that abuts against a flange 23b integrally provided on the operating pin 23a so as to keep the operating pin 23a out of the circular hole 17b.
is provided. Further, a cam 22 that swings around a support shaft 21a is provided approximately at the center of the operating member main body 20 to move and operate the pin storage body 23.
A spring 25 is provided between the cam 22 in the guide 20a and the inner wall of the operating member main body 20 so that the pin housing comes into pressure contact with the cam 22. Further, the support shaft 21a of the cam 22 is provided so as to be swingable about a pin 21b provided on the support shaft 21a so that the operating lever 21 swings toward the side surface of the vertical rail 3. 2
Reference numeral 1d designates a pin abutment plate that is integrally provided with the contact lever 21, and is used to push the operating pin 23a against the spring 23c to a T position.
It is configured to be able to move into the groove 3c.

To explain the operating mode of the device of the present invention having the above-mentioned configuration, normally, as shown in FIG. It can be freely moved along the vertical rail 3 together with the cursor board 5. Now, move the operating lever 21 to arrow A in Figure 5.
When the pin 21b is rotated in the direction, the pin contact plate 21d pushes the operating pin 23a toward the interlocking bar 17 against the spring 23c, and the operating pin 23a is inserted into the circular hole 17b provided in the interlocking bar 17. They will fit together. In this state, when the operating lever 21 is rotated in the direction of arrow B in Fig. 6, the cam 2
2 rotates around the support shaft 21a, and the pin storage body 23
along the guide 20a against the spring 25 at the arrow C
move in the direction. At this time, the operating pin 23a remains fitted into the circular hole 17b of the interlocking bar 17, so
As the pin storage body 23 moves, the interlocking bar 17 also moves in the direction of arrow C. Interlocking bar 17
When the cursor moves in the direction of arrow C, the horizontal cursor 4 moves through the swinging rod 16 as shown in FIGS. 3 and 4.
Move the L-shaped opening/closing lever 14 provided in the direction of arrow D. Along with this, the opening/closing lever 14 rotates clockwise around the support shaft 14b, as shown in FIG. Operation piece 11
c, 12c are pushed apart against the tension spring 15, and as a result, the brake parts 11b, 12b
a and fix the horizontal cursor 4 to the horizontal rail 2. After applying the horizontal cursor brake,
Even if you release your hand from the operating lever 21, the stopper 18
As a result, the swinging rod 16 is fixed at the brake position shown by the solid line, and the horizontal cursor brake is maintained in the brake operating state. In addition, in the operating member main body, the operating pin is returned to its original position by the spring 23c, so the operating member main body 20 together with the head 7 can be freely moved along the vertical rail while keeping the horizontal cursor brake fixed. Can be moved.

Conversely, when releasing the horizontal cursor brake,
When the operating lever is tilted in the direction of arrow A in FIG. 5 and rotated in the direction of arrow B in FIG.
is moved in the counter-arrow D direction by the counterclockwise rotation of the swinging rod 16, its opening/closing protrusion 14a moves to the right, the clamping levers 11 and 12 are pulled open by the tension spring 15, and the horizontal cursor brake is opened. It is opened and the horizontal cursor 4 becomes movable.

As described above, according to the present invention, the interlocking bar provided in conjunction with the horizontal cursor brake is provided along the longitudinal direction of the vertical rail, and the interlocking bar is moved a predetermined distance along the longitudinal direction of the vertical rail. In a brake operating device configured to operate a horizontal cursor brake, an operating member is attached to a vertical cursor that guides a head along a vertical rail so as to be movable a predetermined distance along the longitudinal direction of the vertical rail; Since the cursor and the interlocking bar are detachably connected to each other, the operating member and the interlocking bar are normally separated, and the vertical cursor can be freely moved along the vertical rail along with the head and the operating member. In addition, when trying to fix the vertical rail, connecting the operating member to the interlocking bar and operating the brake will activate the horizontal cursor brake, so no matter where the head is on the vertical rail, it will work. The vertical rail can be fixed to the horizontal rail using the operating lever located near the head, and if the operating member is removed from the interlocking bar while it is fixed, the head can be freely attached to the vertical rail again. can move along. Since the brake can be released by connecting the operating lever located near the head to the interlocking bar at any position, the operator can move the horizontal cursor using the operating member located near the drafting machine head no matter where the head is located. The brake can be operated and the vertical cursor can be easily fixed and unfixed.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing the entire track type flexible parallel ruler according to the present invention, Fig. 2 is a plan view of its horizontal cursor, and Fig. 3 is a partial longitudinal section taken along the - line in Fig. 2. FIG. 4 is a side view showing the operating state of the main part, FIG. 4 is an explanatory diagram partially longitudinally showing the operating state of the main part, and FIG. FIG. 6 is a partially cutaway side view of the main part. 1...Drawing board, 2...Horizontal rail, 3...Vertical rail, 4...Horizontal cursor, 5...Vertical cursor, 7...
...head, 17...interlocking bar, 17b...circular hole,
20... Operating member main body, 21... Operating lever, 2
2...Cam, 23a...Operation pin.

Claims (1)

[Scope of utility model registration request] An interlocking bar interlocked with the horizontal cursor brake is provided along the longitudinal direction of the vertical rail, and the horizontal cursor brake is activated by moving the interlocking bar a predetermined distance along the longitudinal direction of the vertical rail. In the brake operating device, an operating member is attached to a vertical cursor that guides a head along a vertical rail so as to be movable a predetermined distance along the longitudinal direction of the vertical rail, and the operating member and an interlocking bar are removably connected. Brake operation device with horizontal cursor.