JPH077200Y2 - Automatic streaker - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention places a casing at a desired position of a sheet on a placement surface, and controls a recording device protruding from the casing by a controller to control the recording device. The present invention relates to an automatic drawing device that automatically draws desired characters, symbol graphics, etc. on a sheet within a predetermined drawing range.

[Conventional technology]

The Y-axis guide of this type of automatic drawing device is generally composed of two parallel guide axes as disclosed in Japanese Utility Model Laid-Open No. 60-114789.

[Problems to be Solved by the Invention] When the Y-axis guide has a two-axis structure as described above, it is difficult to set the parallelism between the two axes. Further, in the case of the single rail structure, there is a defect that a structure in which the Y cursor is slidably attached to the rail in the longitudinal direction of the rail is complicated and large in size. The present invention aims to eliminate the above defects.

[Means for solving problems]

To achieve the above object, the present invention fixes a U-shaped frame 38 to the Y-axis guide 26, and a U-shaped moving frame 40 is loosely fitted between both vertical walls of the frame 38. Grooves are provided in vertical walls of the moving frame 40 and the frame body 38 facing each other along the longitudinal direction of the Y-axis guide 26, and are positioned in the grooves so that the moving frame 40 and the frame body 38 face each other. A plurality of rolling elements 42 are rotatably tightly fitted between the vertical walls, and the Y cursor 48 is placed on the moving frame 40.
Is fixed.

[Operation] When a moving force along the longitudinal direction of the Y-axis guide 26 acts on the Y cursor 48, the moving frame 40 moves along the frame 38 and the rolling elements.
The Y cursor 48 moves along the Y axis guide 26 while being guided by the rotation of 42.

〔Example〕

Hereinafter, the configuration of the present invention will be described in detail with reference to the embodiments shown in the accompanying drawings.

Reference numeral 2 is a synthetic resin casing of an automatic image drawing device, which is a bottom wall 2a and an upper cover 2b detachably fixed to the bottom wall 2a.
The bottom wall 2c is provided on the front edge of the bottom wall 2a so as to project in the same plane, and a scale plate (not shown) is stretched on the upper surface of the bottom plate 2c. A projecting piece is integrally formed on one of the front edges of the bottom wall 2a, and a mounting metal piece 4 for detachably connecting the casing 2 to the scale mounting plate of the universal parallel ruler is fixed to the projecting piece. There is. Reference numerals 6 and 8 denote guide shaft fixing frames made of an iron plate. A stepped hole 10 is formed at a predetermined position of a rising portion of the frame, and a round bar-shaped X-axis guide 12 is provided in a recess 10a of the stepped hole 10. Both ends of 14 are closely fitted.
The screw portions of the screws 16, 18, 20, 22 inserted into the stepped hole 10 are screwed into the screw holes formed at both ends of the X-axis guides 12, 14, and the screw 16, 18, 20, Both ends of the X-axis guides 12 and 14 are pressed against the vertical surfaces of the recess 10a and fixed to the frames 6 and 8 by the tightening force of the X-axis guides 12 and 14.
Are set parallel to each other. Each one side portion of the frames 6 and 8 has a rising portion for positioning which is provided so as to project from the bottom wall 2a.
As shown in FIG. 2, the corners of 2d are fitted, and in this state, the lower horizontal portions of the frames 6 and 8 are fixed to the bottom wall 2a by screws 7 and nuts 9. Reference numeral 24 denotes a tubular X cursor, which is slidably and tightly fitted on the X axis guide 12 via a bearing member. As shown in FIG. 6, one end of a plate-shaped Y-axis guide 26 is fixed to the X-cursor 24 by a screw, and the other end of the Y-axis guide 26 is made of a synthetic resin block 28a such as DURACON. Sub-X with iron plate 28b fixed to
The cursor 28 is fixed. As shown in FIG. 6, a guide recess 30 formed in the block 28a is loosely fitted in the X-axis guide 14. The sub-X cursor 28 has a second
As shown in the figure, the central portion of the leaf spring 32 is fixed,
The shaft pressing members 34 and 36 made of DURACON are fixed to both ends of the shaft 32. The shaft pressing members 34 and 36 slidably contact the lower surface of the X-axis guide 14 by the elastic force of the leaf spring 32. Due to the reaction force, the upper wall projection of the guide recess 30 slidably contacts the upper surface of the X-axis guide 14 as shown in FIG. In FIG. 12, reference numeral 38 denotes a frame body which is detachably fixed to the upper surface of the Y-axis guide 26 by a screw and which is made of an iron plate having a U-shaped cross section. A steel ball is formed between the V-grooves formed on both vertical side walls of the moving frame 40 along the longitudinal direction and the V-grooves formed on both vertical side walls of the frame 38 along the longitudinal direction. A plurality of moving bodies 42 are arranged. Reference numeral 44 is a retainer made of synthetic resin, and the rolling elements 42 are arranged in holding holes formed in both vertical side walls of the retainer. The frame 38
A stopper shaft 46 made of synthetic resin is projected on the horizontal portion of the retainer 44, and the stopper shaft 46 is slidably fitted in a long hole formed in the longitudinal direction at the substantially central portion of the horizontal portion of the retainer 44. ing. The retainer 44 regulates an interval between the rolling elements 42, and the stopper shaft 46 regulates a moving range of the retainer 40. In FIG. 1, 48 is the moving frame.
It is a Y-cursor having a U-shaped cross section fixed to 40. A vertical side wall 12 of the Y-cursor has a rear portion of a writing instrument support arm 50 rotatably supported by shafts 52, 52 about an axis parallel to the X-axis guides 12, 14. Has been done.

As shown in FIG. 5, the writing instrument support arm 50 has an opening formed in the front wall of the casing 2 along the longitudinal direction.
It protrudes outward from 54. A writing tool holder 56 made of synthetic resin is fixed to the tip of the writing tool support arm 50,
A writing instrument 58 is held in the holder 56. A bending portion K is formed at an intermediate portion of the writing instrument support arm 50, and the bending portion K causes the arm 50 to move around the axis 52 to a seventh position.
In the figure, a part Z parallel to the mounting surface 60 is formed in a predetermined range on the arm 50 when the arm 50 is rotated counterclockwise to the highest position. The parallel portion Z is a lifting bar to be described later.
It is set within the movement range in the Y direction with respect to 62. Reference numeral 62 denotes an elongate plate-shaped lifting bar, and as shown in FIG. 9, two iron plates are folded back to form an arm support portion 62a.
A sound absorbing material 64 made of a polymer material such as cloth, rubber or Teflon is attached to the arm support portion 62a. The sound absorbing material 64 may be coated on the arm supporting portion 62a of the elevating bar 62, may be disposed between the arm supporting portion 62a and the writing instrument supporting arm 50, and may be provided on the lower surface of the writing instrument supporting arm 50. You may do it. The lifting bar 62
Side plates 62a and 62b are integrally formed at both ends of the side plate 62a.
Holes formed in a and 62b are rotatably fitted in the vicinity of both ends of the X-axis guide 12, and outer surfaces of the side plates 62a and 62b are attached to inner surfaces of rising portions of the frames 6 and 8 through washers. Abuts freely. At the rising portion of the frame 8,
As shown in FIG. 14, the long hole 64 is abutted, the long hole 64,
A pin 66 projecting downward from the center of rotation of the side plate 62b at a predetermined distance is loosely fitted. A roller-shaped stopper member 68 is fixed to one end of the pin 66. The upper portion of the side plate 62b is connected to a return spring 70 attached to the rising portion of the frame 8, and the tension of the spring 70 causes the side plate 62b to move counterclockwise about the X-axis guide 12 in FIG. Is urged in the direction, and by the urging force,
The stopper roller 68 is elastically contacted with a stopper 72 made of a rubber plate stretched at a right angle portion of the rising portion of the frame 8. With the stopper member 68 elastically contacting the stopper 72, the arm support portion 62a of the elevating bar 62 is set to the highest position with respect to the bottom surface of the casing 2.
The stopper member 68 has a wide width or a plurality of stopper members 68 for adjusting the height of the writing instrument. Reference numeral 74 denotes a U-shaped rotating body that is rotatably supported on the rising portion of the frame 8 by a shaft 76, and one lower end of a pair of vertical walls thereof is fixed to the rising portion of the frame 8. An output shaft 80 of a solenoid 78 is pivotally supported 82, and the lower end of the other vertical wall is connected to the pin 66 by a wire 84.
The output shaft 80 is located between the stopper member 86 formed of a stopper ring fixed to the output shaft 80 of the solenoid 78 and the wall surface of the solenoid 78, and the output shaft 80 has a rubber double member shown in FIGS. 16 and 17. A pair of holes of the elastic ring 88 are fitted and the elastic force of the double elastic ring 88 to expand in a plane causes one circular portion of the double elastic ring 88 to elastically contact the wall surface of the solenoid 78 and the other circular portion. The portion is in elastic contact with the stopper member 86. Double elastic ring 88
The shape of is not limited to the shape shown in FIG. Reference numeral 90 denotes a Y motor with a reduction mechanism fixed to the bottom wall 2a of the casing 2 via an iron plate bracket 92, and a drum 94 is fixed to the output shaft of the Y motor. A flexible wire rope 96 is wound around the drum 94 multiple times.
One of them is hung on the rope pulleys 98, 100, 102, 104 with an appropriate tension, and one end of the rope 96 is locked to the rising portion of the frame 8. The other end of the rope 96 is hung on the rope pulleys 106, 108, 110 and 112 with appropriate tension, and the other end of the rope 96 is connected to the frame 8
It is being fixed to the rising part of the through a fixing tool. The pulleys 98 and 106 are rotatably supported on the rising portion of the frame 6. The pulleys 100 and 104 are the X cursors 2
4 is rotatably supported, and the pulleys 108 and 112 are rotatably supported by the sub-X cursor 28. The pulleys 102 and 110 are rotatably supported by the Y cursor 48. Reference numeral 114 denotes an X motor fixed to a bracket 92 fixed to the bottom wall 2a of the casing 2, and a toothed belt pulley 116 is fixed to an output shaft of the X motor. An endless timing belt 120 is stretched between the belt pulley 116 and a toothed belt pulley 118 that is rotatably supported on the right-angled wall of the rising portion of the frame 8, and the upper end of the belt 120 is horizontal. The section is fixed to the X cursor 24 via a fixing member. The frames 6 and 8 have the XY
A printed circuit board on which a controller for driving and controlling the motors 114 and 90 and the solenoid 78 is integrated is fixed. A keyboard and a liquid crystal display section are provided on the upper cover 2b.

Next, the operation of this embodiment will be described.

When the keyboard is operated and the drawing information is input to the controller, the XY motors 114, 90 rotate, the X cursor 24 and the sub X cursor 28 move in the X direction along the X guide axes 12, 14, and the Y cursor. The wire rope 96 pulls the wire 48 up and down along the Y rail 26 in FIG. The pulling force of the wire rope 96 causes the moving frame 40 to slide along the frame body 38 by the guide action of the rolling elements 42, and Y
The cursor 48 moves along the Y rail 26 in the vertical direction, that is, the Y direction in FIG. The movement of the Y cursor 40 causes the writing instrument support arm 50 to move along the Y direction. When the solenoid 78 is in the non-energized state, the lifting bar 62 is locked by the pulling force of the return spring 70 at the counterclockwise rotation limit position about the X guide shaft 12 in FIG.
The arm support portion 62a of 62 is at the highest position, the writing tool support arm 50 is pushed up counterclockwise about the shaft 52 by the arm support portion 62a, and the writing tool 58 moves from the paper on the placement surface 60. It is in a pen-up state in which it is separated by a predetermined distance. In the pen-up state, when the writing instrument support arm 50 is maximally projected in the Y direction as shown in FIG. 7, the contact position A of the writing instrument support arm 50 with the elevating bar 62 and the writing instrument support arm 50 are shown. Writing tool support arm when retracted to the maximum in the casing as shown in FIG.
An interval Z between the abutting position B of the lifting bar 62 and the lifting bar 62 is set parallel to the mounting surface 60. Therefore, in the pen-up state, even if the writing instrument support arm 50 is moved in the Y direction, the rising distance of the lower end of the writing instrument 58 with respect to the placement surface 60 does not change. When a drive current is input to the solenoid 78 from the controller, the output shaft 80 of the solenoid 78 is attracted. This suction force drives the output shaft 80 until the stopper member 86 fixed to the output shaft 80 collides with the wall surface of the solenoid 78 via the double elastic ring 88. By driving the output shaft 80 of the solenoid 78, the rotating body 74 is rotated about the shaft 76, and this rotation is performed via the wire 84.
The side plate 62b is transmitted to the side plate 62b of 62, and the side plate 62b swings clockwise around the X-axis guide 12 in FIG. 7, and the arm support portion 62a of the elevating bar 62 descends. As a result, the writing instrument support arm 50 is moved by its own weight around the shaft 52 in FIG.
The writing instrument 58 swings clockwise and the tip of the writing instrument 58 comes into contact with the sheet on the placement surface 60. As shown in FIG. 5, the elevating bar 62 still descends slightly even if the tip of the writing instrument 58 comes into contact with the paper, so
A slight gap is formed between the arm support portion 62a of the elevating bar 62 and the lower surface of the writing instrument support arm 50. Next, when the power supply to the solenoid 78 is released, the elevating bar 62 moves to the return spring.
The pulling force of 70 swings counterclockwise around the X-axis guide 12 in FIG.
Collides with the writing instrument support arm 50 and pushes it up, and the stopper member 68 collides with the stopper 72 by the pulling force of the return spring 70, and when the stopper member 68 is locked by this, the elevating bar 62.
7, the counterclockwise movement around the X-axis guide 12 is stopped, and the writing instrument 58 is in the pen-up state. During the movement of the sub-X cursor 28 along the X-axis guide 14, the upper wall surface of the guide recess 30 is always subjected to the elasticity of the spring 32.
The state of being in contact with is maintained. By the ascending / descending operation of the writing instrument support arm 50 and the moving operation in the XY directions, the character information and the like input by the keyboard is automatically drawn on the paper on the placing surface 60. The writing tool 58 constitutes a recording tool and is not particularly limited to a pen.

〔effect〕

According to the present invention, as described above, the movable frame is slidably supported between the vertical walls of the frame body through the rolling elements, so that the slide support structure for the Y-axis guide and the Y cursor can be simplified. There are advantages such as miniaturization.

[Brief description of drawings]

1 is a plan view with an upper cover removed, FIG. 2 is a rear view, FIG. 3 is a front view, FIG. 4 is a side view, FIG. 5 is a side view, and FIG. 6 is a side view. 7 is a side view, FIG. 8 is a side view, FIG. 9 is an external view, FIG. 10 is a side view, FIG. 11 is an external view, FIG. 12 is a plan view, and FIG. 13 is a cross section taken along line AA. Fig. 14, Fig. 14 is an external view, Fig. 15 is a side view, Fig. 16 is a component plan view, Fig. 17
The figure is an external view of the part. 2 ... Casing, 2a ... Bottom wall, 2b ... Top cover, 2c ...
… Bottom plate, 4 …… Mounting bracket, 6, 8 …… Frame, 10 …… Stepped hole, 12, 14 …… X-axis guide, 16, 18, 20, 22 …… Screw, 24 ……
X cursor, 26 …… Y axis guide, 28a …… Block, 28b…
… Iron plate, 28 …… Sub X cursor, 30 …… Guide recess, 32…
… Leaf springs, 34, 36 …… Shaft holding member, 38 …… Frame, 40 …… Moving frame, 42 …… Rolling body, 44 …… Retainer, 46 …… Stopper shaft,
48 …… Y cursor, 50 …… Writing instrument support arm, 52 …… Axis, 5
4 …… Aperture, 56 …… Writing tool holder, 58 …… Writing tool, 60…
… Mounting surface, 62 …… Lifting bar, 62a …… Arm support, 64 ……
Sound absorbing material, 62a, 62b …… Side plate, 64 …… Oval hole, 66 …… Pin, 68…
… Stopper member, 70 …… Return spring, 72 …… Stopper, 74 …… Rotating body, 76 …… Shaft, 78 …… Solenoid, 80 …… Output shaft, 82 …… Pivot support, 84 …… Wire, 86 ...... Stopper member,
88 …… Double rubber ring, 90 …… Y motor, 92 …… Bracket, 94 …… Drum, 96 …… Wire rope, 98,100,102,10
4 …… Rope pulley, 106,108,110,112 …… Rope pulley,
114 …… X motor, 116 …… Belt pulley, 118 …… Belt pulley, 120 …… Belt

Claims (1)

[Scope of utility model registration request] 1. A casing 2 mounted on a mounting surface, and an X-axis guide frame fixed to a bottom wall 2a of the casing 2.
6,8 and the X-axis guide 12 installed on the guide frames 6,8
And an X cursor 24 movably attached along the X-axis guide 12, and the X-axis guides 12, 14 on the cursor 24.
And a Y-cursor mounted movably on the Y-axis guide 26.
In a device comprising a 48 and a recording tool which is supported by the Y cursor 48 and protrudes forward of the casing 2 from an opening formed in a front wall of the casing 2, a U-shaped frame is provided on the Y-axis guide 26. The body 38 is fixed, a U-shaped moving frame 40 is loosely fitted between both vertical walls of the frame 38, and the Y-axis guide 26 is provided on the vertical walls of the moving frame 40 and the frame 38 which face each other. A groove is provided along the longitudinal direction of the moving frame 40, and a plurality of rolling elements 42 are rotatably tightly fitted between the vertical walls of the moving frame 40 and the frame body 38 facing each other. The Y in the moving frame 40
An automatic scribing machine with a fixed cursor 48.