JPH082184A - Scale clamper for parallel ruler - Google Patents

Abstract

PURPOSE:To stop the movement of the scale of a parallel ruler along a longitudinal rail and the movement of the scale in a direction floating from a drafting board surface by detachably fixing the scale to the board by a simple structure and operation. CONSTITUTION:A scale clamper 28 comprises an engaging recess entirely formed of a platelike member to be detachably engaged with the lateral rail 22 of a parallel ruler from above, and horizontal adhesive parts 28b horizontally in opposite contact with the magnetic drafting board surface 6a of the ruler when engaged integrally with the both sides of the recess and the recess is engaged with the rail 22 of the ruler from above and so provided with a magnetic surface as to operate a magnetic force in the attracting direction to the surface 6a. When the recess of the clamper 28 is engaged with the rail 22 of the ruler from above, the parts 28b are horizontally brought into contact with the surface 6a of the board 6, and the parts 28b are fixed to the board 6 by the force.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scale fixing tool for detachably fixing a scale of a parallel ruler to a drawing board surface.

[0002]

2. Description of the Related Art In FIGS. 9 and 10, reference numerals 2 and 4 denote a pair of vertical rails of a parallel ruler, which are fixed to both sides of a drawing board 6. Vertical cursors 8 and 10 are movably connected to each of the vertical rails 2 and 4 via rollers, and the vertical cursors 8 and 1 are connected to each other.
0 is configured to move in conjunction with each other by a known interlocking mechanism. Oscillators 12 and 14 are pivotally supported 16 on the vertical cursors 8 and 10 rotatably about an axis that is perpendicular to the vertical rails 2 and 4 and horizontal to the surface of the drawing board 6. The oscillating bodies 12, 14 are provided with holding bodies 18, 2
0 is attached. Both ends of the holding member 22 are the holding member 1
It is a horizontal rail connected to 8 and 20, and a scale 24 is fixed to this.

The horizontal rail 22 is movable in parallel in the vertical direction in FIG. 9 while the scale 24 is in contact with the surface of the drawing board 6, and as shown in FIG. , So that it can be lifted in a direction away from the surface of the drawing plate 6. A pencil receiver 26 is fixed to the front surface of the drawing board 6 between the vertical rails 2 and 4. A magnet sheet is stretched on the surface of the drawing board 6, and a magnetic surface 6a is formed on the surface of the drawing board 6. When the drawing board 6 is erected, the vertical rails 2,
Balance weights are arranged in the balance weight 4, and vertical cursors 8 and 10 are connected to the balance weights via ropes. The vertical cursors 8 and 10 can be releasably fixed to the vertical rails 2 and 4 by operating the brake lever. When the parallel ruler is shipped from the factory, the balance weights interlocking with the horizontal cursors 8 and 10 may be previously fixed to the vertical rails 2 and 4 with screws so that the horizontal rails 22 do not move inside the box. It is being appreciated.

[0004]

[Problems to be solved by the invention] When shipping the parallel ruler,
When the balance weight was fixed to the vertical rail with screws, it was not easy for the user to unlock the horizontal rail. In order to solve this, it may be possible to apply a brake to fix the horizontal rail, but not all parallel ruler products have a brake, and in particular, a small and simple product does not have a brake. It is common. Also, if the vertical board is erected only by fixing the movement of the vertical cursor, the horizontal rail will swing around the pivot in the floating direction away from the surface of the board, and the scale will rise. This is particularly unsightly when a parallel ruler is set up and displayed in a store. In the case of a small, portable parallel ruler, the scale is liable to be damaged by the rising of the scale or the sliding movement of the horizontal rail when carrying it. There was a problem that the movement of the scale would be an obstacle because it had to be held down with. The present invention aims to solve the above problems.

[0005]

In order to achieve the above-mentioned object, the present invention has a fitting recess 28a for removably fitting the horizontal rail 22 of a parallel ruler from above, and is integrally formed on both sides of this fitting recess 28a. When the fitting recessed portion 28a formed in a parallel shape is fitted into the horizontal rail 22 of the parallel ruler from above, it horizontally contacts the drawing plate surface of the parallel ruler and a magnetic force acts between the drawing recess and the drawing plate surface in the attracting direction. Therefore, the horizontal adhesive portions 28b and 28b provided with magnetic surfaces are provided.

[0006]

When the fitting recess 28a is fitted onto the horizontal rail 22 of the parallel ruler from above, the horizontal adhesive portions 28b, 28b are brought into horizontal contact with the magnetic surface 6a of the drawing board 6, and the horizontal adhesive portion 28b, 28b 28b is fixed to the drawing board 6. This allows
Sliding movement of the horizontal rail 22 along the vertical rails 2 and 4 and rising of the scale 24 in the direction of levitating from the surface of the drawing board 6 are prevented.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of the present invention will be described below in detail with reference to the embodiments shown in the accompanying drawings. In FIG. 1, reference numeral 28 denotes a scale fixture, which is made of an elastic plate member such as metal or plastic and has a U-shaped fitting recess 28a.
And horizontal bonding portions 28b and 28b. Magnet rubbers 30, 30 are stretched on the lower surfaces of the horizontal adhesive portions 28b, 28b, and the lower surfaces constitute magnetic surfaces. The lower surfaces of the horizontal bonding portions 28b, 28b are magnetic surfaces 6a made of a magnet sheet on the surface of the parallel ruler plate 6.
The magnetic force is not particularly required because it can be adhered by the magnetic force to the magnetic field. In addition, scale fixture 2
The whole 8 may be made of a magnetic material.

Fitting recess 28a of the scale fixture 28
Is fitted to the horizontal rail 22 of the parallel ruler, the lower surfaces of the horizontal bonding portions 28b, 28b are bonded to the magnetic surface 6a of the drawing board 6 by a magnetic force. As a result, the horizontal movement of the horizontal rail 22 along the vertical rails 2 and 4 is prevented, and the swinging movement of the horizontal rail 22 and the scale 24 in the direction of levitating from the surface of the drawing plate 6 is prevented. The parallel ruler shown in FIG. 1 has the same basic configuration as the parallel ruler of the prior art shown in FIGS. 9 and 10, and parts corresponding to those of the conventional parallel ruler are designated by the same reference numerals, and the description thereof will be given. Omitted.

As shown in FIGS. 3 and 4, the scale fixture 28 may be shaped so that it can be housed inside the pencil receiver 26 of the parallel ruler. With this configuration, the scale fixture 28 can be put in the pencil receiver 26 during the drawing work, so that the scale fixture 28 does not get in the way. As shown in FIG. 5, when the scale fixture 28 is fitted to the lower side of the pencil receiver 26, the upper surface of the fitting recess 28a of the scale fixture 28 is slightly smaller than the lower surface of the parallel ruler drawing plate 6. The attachment position of the bottom portion of the pencil receiver 26 with respect to the drawing plate 6 is set so that the pencil protrusion 26 projects downward. Then, a friction member such as a rubber plate is stretched on the upper surface of the fitting concave portion 28a of the scale fixing tool 28, and the upper surface serves as the friction surface 28c, and the scale fixing tool 28 is placed on the table with the parallel ruler. It can be used as a slip stopper.

Next, another embodiment will be described with reference to FIGS. 6 to 8. Reference numeral 28 denotes a scale fixture that also serves as a pencil receiver, and includes a fitting recess 28a having a length substantially the same as the lateral width of the drawing plate 6 of the parallel ruler, and horizontal bonding portions 28b, 28b having magnetic surfaces.
And locking portions 28d, 28d are formed. A support piece 32 is fixed to the front portion of the drawing board 6, and the support piece 32 is fixed.
In parallel to the vertical rails 2 and 4, the support shaft 34
Has been erected. When the scale fixture 28 is used as a pencil receiver, one of the hooking recesses 28e, 28e formed by the outer surface of the fitting recess 28a, the horizontal adhesive parts 28b, 28b, and the locking parts 28d, 28d. Recess 28e
The support shaft 34 is fitted to the
And place the inverted scale fixture 28 on the drawing board 6
It is detachably attached to the front of the.

In this state, the inverted fitting recess 28a is formed.
Functions as a storage unit for storing small items such as pencils and erasers. Attach the scale fixture 28 to the support piece 32 and the support shaft 3.
4 and the fitting recess 28a is fitted to the horizontal rail 22 of the parallel ruler, the horizontal bonding portions 28b and 28b are bonded to the magnetic surface 6a of the drawing board 6 by magnetic force. With the above configuration, it is possible to solve the problem of where to store the scale fixing tool when it is removed from the lateral rail, and prevent the scale fixing tool from being lost.

[0012]

EFFECTS OF THE INVENTION Since the present invention is configured as described above, it is possible to prevent an inadvertent rise of the scale and slide running along the vertical rail, and there is an effect that safety can be improved.

[Brief description of drawings]

FIG. 1 is an overall external view of a parallel ruler.

FIG. 2 is a cross-sectional view of a horizontal rail.

FIG. 3 is an external view showing another embodiment.

FIG. 4 is a sectional view of a scale fixture.

FIG. 5 is a sectional view showing another embodiment of the scale fixture.

FIG. 6 is an external view showing another embodiment of the scale fixture.

FIG. 7 is a cross-sectional view showing another embodiment of the scale fixture.

FIG. 8 is an external view showing another embodiment of the scale fixture.

FIG. 9 is a plan view of a conventional parallel ruler.

FIG. 10 is a side view of a conventional parallel ruler.

[Explanation of symbols]

 2 Vertical rail 4 Vertical rail 6 Drawing plate 8 Vertical cursor 10 Vertical cursor 12 Oscillator 14 Oscillator 16 Pivot 18 Holder 20 Holder 22 Horizontal rail 24 Scale 26 Pencil holder 28 Scale fixture 28a Fitting recess 28b Horizontal adhesive section 30 Magnet rubber 32 Support piece 34 Support shaft

Claims (1)

[Claims] 1. A fitting recess (28a) for detachably fitting to a horizontal rail (22) of a parallel ruler from above, and the fitting recess formed integrally on both sides of the fitting recess (28a). When (28a) is fitted onto the horizontal rail (22) of the parallel ruler from above, the magnetic surface is brought into contact with the drawing plate surface of the parallel ruler horizontally and a magnetic force acts between the drawing plate surface and the drawing plate surface in the attracting direction. A scale fixing tool of a parallel ruler, which is provided with a horizontal adhesive portion (28b) (28b) provided and is entirely formed by a plate-shaped member.