JPH0516391U - Parallel ruler - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] To simplify the mechanism for interlocking or canceling one vertical cursor with respect to the other vertical cursor to facilitate operation. [Structure] The molding 64 provided on the vertical cursor 22 is rotated in a predetermined direction so that the pressing release surface of the cam 62 is slid on the slide member 3.
8, the belt 20a is pinched between the clutch plate 52 and the support member 50, and the vertical cursor 22 moves the belt 20a.
Be combined with. When the molding 64 is rotated in the opposite direction, the clutch plate 52 moves away from the support member 50, and the vertical cursor 22 becomes freely movable along the vertical rail 4 with respect to one vertical cursor. In this state, when the other vertical cursor 22 is moved along the vertical rail 4 with respect to the one vertical cursor, the inclination angle of the horizontal ruler with respect to the vertical rail 4 can be changed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 According to the present invention, a pair of vertical rails arranged on both sides of a drawing board, vertical cursors movably attached to the vertical rails interlocking with each other, and erected on the pair of vertical cursors. One of the vertical cursors can be freely moved with respect to the other vertical cursor, and by freely moving the other vertical cursor, the horizontal ruler The present invention relates to a parallel ruler device that adjusts an angle with respect to a vertical rail.

[0002]

[Prior Art]

 As shown in Japanese Utility Model Laid-Open No. 59-140891, a conventional parallel ruler device can freely move one vertical cursor with respect to the other vertical cursor of a pair of vertical cursors connected to each other through an interlocking mechanism. The clutch mechanism for changing the angle of the horizontal ruler is provided on the transmission shaft that constitutes the interlocking mechanism at the rear of the drawing board, and the knob for that operation is at the lower side in front of the drawing board. It is provided in.

[0003]

[Problems to be solved by the device]

 As described above, if the knob for clutch operation is provided on the drawing board side, the structure will be complicated and the distance between the knob and the vertical cursor will be great. It was inconvenient to change the angle of the ruler, and the operability was extremely poor. The present invention aims to eliminate ruler defects.

[0004]

[Means for solving problems]

 In order to achieve the above object, the present invention provides a pair of vertical rails 4 and 6 disposed on both sides of the drawing board 2 and a pair of vertical rails 4 and 6 rotatable between front and rear end portions. And a vertical transmission sol that is movably connected to each of the pair of vertical rails 4 and 6, and a movement transmission member that is arranged to move along the vertical rails 4 and 6 in conjunction with each other. In a parallel ruler device composed of 22, 30 and a horizontal ruler 34 which is installed so as to be tiltable between the vertical cursors 22, 30, one of the vertical cursors 22, 30 is used to move one of the vertical cursors 30 of the movement transmitting member. , Which is connectable to a portion 20b which moves along one of the vertical rails 6, and which is horizontal to the board 22a of the other vertical cursor 22 with respect to the surface of the drawing board 2 and perpendicular to the vertical rails 4 and 6. Support the slide member 38 so that it can move freely in any direction. A support member 50 is fixedly mounted on the base plate 22a, and a clutch plate 52 is arranged opposite to the support member 50. The other vertical rail 4 of the movement transmission member is disposed between the clutch plate 52 and the support member 50. The clutch plate 52 and the slide member 38 are connected by the clutch plate transmission shaft 51, and the base plate 22a has a pressing surface 62b and a pressing release surface for the sliding member 38. A cam 62 having 62a formed thereon is rotatably supported, a cam surface of the cam 62 is arranged to face the slide member 38, a molding 64 is attached to the cam 62, and the clutch plate 52 is pressed against the support member 50. It is biased by the spring 54 in the direction of rotation.

[Action]

Of the pair of vertical cursors 22 and 30, when the molding 64 provided on the other vertical cursor 22 is rotated in a predetermined direction and the pressing release surface 62a of the cam 62 is positioned on the slide member 38, the slide is performed. The member 38 moves in a predetermined direction by the elasticity of the spring 54, and the clutch plate 52 approaches the opposing support member 50. By this approach, the movement transmitting member is pressed between the clutch plate 52 and the support member 50, and the other vertical cursor 22 is coupled to the movement transmitting member.

When the molding 64 is rotated in the opposite direction and the pressing surface 62 b of the cam 62 is positioned on the slide member 38, the slide member 38 resists the elastic force of the spring 54 in the opposite direction due to the pressing force from the cam. The clutch plate 52 moves in the direction away from the support member 50. By this movement, the clamping pressure between the support member 50 and the clutch plate 52 with respect to the movement transmitting member is released, and the other vertical cursor 22 freely moves along the vertical rail 4 with respect to the one vertical cursor 30. It can be moved freely.

In this state, the tilt angle of the horizontal ruler 34 with respect to the vertical rails 4 and 6 is changed by moving the other vertical cursor 22 along the vertical rail 4 with respect to the one vertical cursor 30. You can

[0008]

【Example】

 Hereinafter, the configuration of the present invention will be described in detail with reference to the embodiments shown in the accompanying drawings. In FIG. 4, reference numeral 2 is a drawing plate, which is supported by a support base. Hollow vertical rails 4 and 6 are fixed to both sides of the drawing board 2.

Belt pulleys 8 and 10 having the same diameter and inclined with respect to the floor are rotatably supported at the front end portions of the vertical rails 4 and 6, respectively. A pair of belt pulleys 12, 14 and 16, 18 are rotatably supported at the rear ends of the vertical rails 4, 6 respectively. The pair of belt pulleys 12 and 14 and the pair of belt pulleys 16 and 18 are coaxially rotatably supported and have the same diameter.

As shown in FIG. 5, a belt 20 is endlessly wound around the belt pulleys 8, 10, 12, 14, 16, and 18 with appropriate tension, and the belt 20 is provided with the vertical rails. The portions 20a, 20b parallel to 4, 6 are configured to interlock with each other in the same direction along the vertical rails 4, 6. A vertical cursor 22 on the left side is connected to the upper and lower edges of the long hole 24 formed in the outer wall of the vertical rail 4 in parallel with each other via a pair of grooved guide rollers 26 and 28 for movement. ing.

The guide rollers 26 and 28 are rotatably supported on the side surface of the substrate 22 a of the vertical cursor 22 which is substantially perpendicular to the surface of the drawing board 2. The cursor 30 on the right side has a structure similar to that of the vertical cursor 22, and a pair of grooved guide rollers (not shown) are provided on upper and lower edges of the elongated hole 32 formed in the outer wall of the vertical rail 6 in parallel with each other. ), It is connected freely.

The right vertical cursor 30 is fixed to the portion 20b of the belt 20 by a suitable fixing means, as shown in FIG. Reference numeral 34 is a horizontal ruler, one end of which is rotatably supported on the right vertical cursor 30 by a known supporting means in a plane horizontal to the surface of the drawing board 2.

The other end of the horizontal ruler 34 is rotatably supported by the well-known supporting means on the left vertical cursor 22 in a horizontal plane with respect to the surface of the drawing board 2, and is well-known. It is slidably supported by the supporting means along the longitudinal direction of the horizontal ruler 34.

The means for supporting the vertical cursors 22 and 30 of the horizontal ruler 34 is such that the right vertical cursor 30 is stationary with respect to the vertical rail 6 and the left vertical cursor 22 is connected to the belt 20. By releasing the connection and moving along the vertical rails 4, it is possible to change the inclination angle of the horizontal ruler 34 with respect to the vertical rails 4 and 6. The detailed structure is disclosed in Japanese Utility Model Application Laid-Open No. 59-140891, and therefore its illustration and description are omitted.

In FIG. 1, reference numeral 36 denotes a slide support member fixed to one side surface of the substrate 22a of the vertical cursor 22, and an L-shaped side slide member 38 is provided on the upper surface of the slide support member 38 on the drawing board 2 surface. On the other hand, it is slidably supported in a direction which is horizontal and perpendicular to the longitudinal direction of the vertical rail 4.

The slide support structure of the slide member 38 includes a long hole 40 formed in a bottom plate of the slide member 38 and a pin 42 protruding from a slide support member 36 slidably fitted in the long hole 40. 44, a long hole 46 formed transparently in the slide support member 36, and a screw 48 screwed to the bottom plate of the slide member 38 slidably fitted in the long hole 46. The head (not shown) of the screw 48 abuts the lower surface of the slide support member 36, thereby preventing the slide member 38 from moving upward with respect to the slide support member 36.

Reference numeral 50 denotes a belt supporting member fixed to the inner surface of the substrate 22a, and a belt supporting portion 50a is formed on the belt supporting member parallel to the inner surface of the substrate 22a. Reference numeral 51 denotes a clutch transmission shaft, which is loosely fitted in a hole formed in the base plate 22a and slidably fitted in a hole formed in the support part 50.

Both ends of the transmission shaft 52 are screwed into a rising portion of the slide member 38 and a screw hole formed through the clutch plate 52, respectively, and both ends of the transmission shaft 52 are connected to the slide member 38 and the clutch plate by a nut. It is fixed at 52. A belt guide portion 52b is formed on the clutch plate 52.

A coil spring 54 is fitted on the transmission shaft 51, and the coil spring 54 is compressed between the slide member 38 and the support portion 50a. A guide portion 56 for releasing the belt is fixedly provided on the clutch plate 52, and the guide portion 56 and the side surface of the clutch plate 52 have a recessed portion 58 for loosely fitting the belt 20. Is formed. Reference numeral 60 denotes a shaft body rotatably supported by the base plate 22a, to which a cylindrical cam 62 and a clutch operation molding 64 are fixed.

The cam surface of the cam 62 faces the rising portion of the slide member 38. The portion 20a of the belt 20 is disposed between the support portion 50a of the belt support member 50 and the clutch plate 52 and in the recess 58.

Next, the operation of this embodiment will be described. When the molding 64 is rotated in a predetermined direction and the pressing release surface 62a of the cam 62 is opposed to the slide member 38 as shown in FIG. 2, the elastic force of the spring 54 causes the slide member 38 to move leftward in FIG. The clutch plate 52 moves and presses against the belt supporting member 50 via the belt 20. By this crimping, the portion 20a of the belt 20 is pinched by the clutch plate 52 and the belt supporting member 50, and the left vertical cursor 22 moves the portion of the belt 20 through the belt supporting member 50 and the clutch plate 52. It is fixed to 20a.

In this state, when the horizontal ruler 34 is pressed along the drawing board 2 in the front-back direction of the drawing board 2 by a manual operation force, the left and right vertical cursors 22, 30 are moved to each other along the vertical rails 4, 6. The horizontal ruler 34 can be moved in parallel with each other to move the horizontal ruler 34 in parallel to a desired position on the drawing board 2.

With the left vertical cursor 22 released from the interlocking state with the right vertical cursor 30, and the right vertical cursor 30 is stationary, the left vertical cursor 22 is moved along the vertical rail 4 and the horizontal ruler 34 When it is desired to adjust the inclination angle with respect to the vertical rails 4 and 6, the molding 64 is rotated in the opposite direction so that the pressing surface 62b of the cam 62 faces the slide member 38 as shown in FIG.

As shown in FIG. 3, the slide member 38 is pushed rightward against the elastic force of the spring 54 by the pushing surface 62 b of the cam 62, and the clutch plate 52 is separated from the belt support member 50. Moving in the direction, the pressure force applied to the belt 20 by the clutch plate 52 is released.

At the same time, in conjunction with the movement of the clutch plate 52 in the right direction in FIG. 3, the belt peeling guide portion 56 moves in the right direction and presses the portion 20 a of the belt 20 in the right direction. Part 20a is separated from the belt supporting surface of the belt supporting member 50. In the above state, the vertical cursor 22 and the belt 20 are released from each other, and the vertical cursor 22 is freely movable along the vertical rail 4 regardless of the belt 20.

In the above embodiment, the belt 20 is used as the movement transmission member for interlocking the pair of vertical cursors 22 and 30, but as shown in FIG. 6, the flexible wire rope 66 is used. May be used. In FIG. 6, rubbers 70 and 72 are fixedly provided in a semicircular groove portion of the belt supporting member 70 that abuts the clutch plate 68 that presses the wire rope 66. In the figure, 74 is a spring, and 76 is a clutch plate transmission shaft.

Pulleys are arranged at both ends of the vertical rails 4 and 6, respectively, and an endless belt or wire rope is stretched over a pair of pulleys at both ends of each of the vertical rails 4 and 6. The pulley at one end and the pulley at the other end of the vertical rail 6 may be connected by a transmission shaft so that the pair of vertical cursors 22 and 30 are interlocked with each other.

[0028]

【effect】

 Since the present invention is configured as described above, there are advantages that the angle change operation of the horizontal ruler can be easily performed, and the mechanism is simple, so that it can be manufactured at low cost.

[Brief description of drawings]

FIG. 1 is an external view of a main part.

FIG. 2 is a plan view of a main part.

FIG. 3 is a plan view of a main part.

FIG. 4 is an overall external view.

FIG. 5 is an explanatory diagram showing a vertical cursor interlocking mechanism.

FIG. 6 is a cross-sectional view showing another embodiment.

[Explanation of symbols] 2 Drawing board 4 Vertical rail 6 Vertical rail 8 Pulley 10 Pulley 12 Pulley 14 Pulley 16 Pulley 18 Pulley 20 Belt 22 Vertical cursor 24 Long hole 26 Guide roller 28 Guide roller 30 Vertical cursor 32 Long hole 34 Horizontal ruler 36 Slide support member 38 Slide member 40 Long hole 42 pin 44 pin 46 Long hole 48 Screw 50 Belt support member 51 Transmission shaft 52 Clutch plate 54 Coil spring 56 Guide part 58 Recessed part 60 Shaft body 62 Cam 64 Mold 66 Wire rope 68 Clutch plate 70 rubber 72 rubber 74 spring 76 clutch transmission shaft

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[Procedure amendment]

[Submission date] October 9, 1991

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Name of item to be corrected] Fig. 4

[Correction method] Change

[Correction content]

[Figure 4]

Claims (2)

[Scope of utility model registration request] 1. A pair of vertical rails 4, 6 disposed on both sides of the drawing board (2), and a pair of vertical rails (4, 6) rotatably suspended between front and rear end portions of the vertical rails (4, 6) and interlocked with each other. And a movement transmission member arranged to move along the vertical rails 4, 6, vertical cursors 22, 30 movably connected to the pair of vertical rails 4, 6, respectively, and the vertical cursor 2
In a parallel ruler device comprising a horizontal ruler 34 installed so as to be tiltable between two and 30, one vertical cursor 30 of the vertical cursors 22 and 30 is provided along one vertical rail 6 of the movement transmitting member. The slide member 38 is connectable to the movable portion 20b, and is movable on the base plate 22a of the other vertical cursor 22 in a direction horizontal to the surface of the drawing board 2 and perpendicular to the vertical rails 4 and 6. A support member 50 is fixedly mounted on the base plate 22a, a clutch plate 52 is disposed to face the support member 50, and the other of the movement transmission members of the movement transmission member is interposed between the clutch plate 52 and the support member 50. A portion 20a that moves along the vertical rail 4 is arranged, and the clutch plate 52 and the slide member 38 are connected to each other by the clutch plate transmission shaft 5.
1, a cam 62 having a pressing surface 62b and a pressing releasing surface 62a formed on the base plate 22a is rotatably supported on the slide member 38, and the cam surface of the cam 62 faces the slide member 38. Arranged, the molding 64 is attached to the cam 62, and the clutch plate 52 is attached to the support member 5
A parallel ruler device characterized by being urged by a spring 54 in a direction in which it is pressed against 0. 2. A release guide 56 is provided on the clutch plate 52 so as to move in association with the clutch plate 52, and when the clutch plate 52 moves in a direction away from the support member 50, the support member 50 is formed. The parallel ruler device according to claim 1, wherein the movement transmitting member between the clutch plates 52 is separated from the supporting member 50.