JPH0529252B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a boss for a strap-type meter movement, and more particularly to a boss structure that facilitates assembly of a strap-type meter movement.

(Prior Art) A tension strap type meter movement has a structure in which a movable part to which a pointer is attached is horizontally suspended by a pair of tension straps so as to be freely rotatable.

This movable part consists of a coil wound around a frame made of aluminum or the like, and a boss fixed to the coil. The movable part is configured to rotate smoothly by electric current.

FIG. 3 shows the movable part and boss structure of a conventional example, and FIG. 3a shows a perspective view of the movable part 10.

In the figure, 11 is a rectangularly wound coil;
2 is an upper boss attached to this coil, and 14 is a lower boss fixed at a position opposite to the upper boss 12.

The upper boss 12 and the lower boss 14 are provided with cross-shaped arms for overall balance.
6 is one of the arms protruding from the upper boss 12,
This is a pointer attachment arm that is bent into an L-shape from the coil 11 and projects longitudinally upward from the coil 11. Reference numeral 18 denotes a rotating shaft that projects perpendicularly from the center of the upper boss 12, and a center hole 20 is provided in the center of the rotating shaft 18 for passing the tension band through. These arms and rotation shafts are integrally molded from synthetic resin or the like to form a boss.

Further, in the lower boss 14 as well, similarly to the upper boss 12, a rotation shaft having a center hole is formed therethrough.

When the movable section 10 is assembled into a movement, the protruding column-shaped magnet is held in the coil 11 and the movable section 10 is rotatably held by the rotation shaft 18.

FIG. 3b shows a front view of the upper boss 12, and FIG. 3c shows a side view. Reference numeral 22 denotes a narrow groove cut into the pointer attachment arm 16, into which the pointer is pushed and fixed. 24 is a tension band passing through the center hole 20 of the rotating shaft 18. 25 is a boss stand, which is a part to be joined to the coil 11. 26 is boss stand 2
This is a protruding edge provided at the end of the coil 11, and holds the edge of the coil 11 when the boss stand 25 is joined to the coil 11.

The terminal end of the coil winding described above is adhered to one end of the tension band through a band plate (not shown), and the other end of the tension band 24 is pulled out from the center hole 20 and attached to a tension spring ( (not shown). As a result, the movable part 10 rotates under the predetermined tension of the tension band.

(Problems to be Solved by the Invention) As described above, the conventional meter movement is made up of minute parts and requires extremely delicate balance. Therefore, the assembly of individual parts must be done manually, and in order to simplify the assembly process, there is a demand for a meter movement structure that is simple and easy to assemble.

In particular, with conventional bosses, it is necessary to drill a center hole in the boss and pass the tension strip through the center hole, which is a problem in that the work is complicated and the work efficiency is poor.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and its object is to provide a boss for a tension band type meter movement in which a tension band can be easily attached to the boss.

(Means for Solving the Problems) The present invention has the following configuration to solve the above problems.

That is, in a boss of a meter movement in which a rotation shaft with a center hole passing through the tension band is installed on a boss stand, the rotation shaft is inserted from the outer edge of the boss stand in order to guide the tension band into the center hole. It is characterized by having a notch that leads to the center hole of the moving shaft.

(Embodiments) Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

1 and 2 show bosses of a meter movement according to an embodiment of the present invention, FIG. 1 shows an upper boss, and FIG. 2 shows a lower boss. In the figures, the same members as those in the conventional example are given the same numbers, and their explanations are omitted.

Figure 1a shows a front view of the upper boss.

Reference numeral 30 denotes a notch made from the outer edge of one end of the boss stand 25 to the center hole 20 with a width comparable to that of the tension band 24.

One end side surface of the notch 30 forms a side surface of the arm 32,
Since the arm 32 extends outward from the boss stand 25, when introducing the tension band 24 into the center hole 20, the tension band 24 should be guided into the notch along the side of the arm 32 and introduced. I can do it.

FIG. 1b is a cross-sectional view of the upper boss 12 taken along line A-A.

The tension band 24 passes through the center hole 20, is bent at the center portion 34, and the tension band end 36 is glued to the end of the arm 33.

The center portion 34 is for aligning the hanging position of the tension band 24 accurately with the center of the axis of the rotation shaft 18, and so that the tension band 24 is bent at the center position of the center hole 20. It is formed into a protrusion that protrudes to the center of the rotation shaft 18 .

The tension band end 36 is glued to the end of the arm 33, and at the same time is joined to the end of the winding of the coil by soldering or the like.

FIG. 2a shows a front view of the lower boss 14, and FIG. 2b shows a sectional view taken along the line BB.

The lower boss 14 is joined to the coil surface on the opposite side to the upper boss 12 described above. Similarly to the upper boss 12, the lower boss 14 is also provided with a notch 30 from the outer edge of the boss base 25 to the rotation shaft 18.

In addition, as shown in FIG.
4 and glued to the end of the arm. At the arm end, the other terminal end of the coil and the tension band end are joined by soldering or the like.

In the embodiment described above, the notch was provided along the arm, but the position where the notch is made is not particularly limited, and the notch can be made from any position on the boss base 25 to the center of the rotating shaft 18. What is necessary is just to provide it so that it communicates with the hole 20.

(Effects of the Invention) According to the present invention, as described above, since the notch is provided in the boss, when setting the tension band in the center hole, the tension band can be simply pulled along the notch. It can be guided to the center hole, making it extremely easy to thread the tension strip through the center hole, and greatly increasing work efficiency compared to conventional assembly methods. Furthermore, the use of the boss of the present invention has the remarkable effect of making it possible to automate assembly.

Although the present invention has been variously explained above with reference to preferred embodiments, the present invention is not limited to these embodiments, and it goes without saying that many modifications can be made without departing from the spirit of the invention. It is.

[Brief explanation of drawings]

Figures 1a and b are a front view and a sectional view taken along the line A-A of an embodiment of the upper boss according to the present invention, and Figures 2a and b are
3 is a front view and a sectional view taken along the line B--B showing an example of the lower boss, and FIGS. 3a, 3b, and 3c are a perspective view of a movable part, a front view of the upper boss, and a side view of the upper boss, respectively, showing a conventional example. 10...Movable part, 11...Coil, 12...Upper boss, 14...Lower boss, 16...Pointer mounting arm, 18...Rotation axis, 20...Center hole, 22
...Narrow groove, 24...Tension band, 25...Boss stand, 26
...Protrusion, 30 ... Notch, 32, 33 ... Arm, 34 ... Center part, 36 ... Tension band end.

[Claims]

1. In a recorder equipped with an input section that switches and inputs a plurality of input signals, and a recording section that sequentially records while the paint cartridge is scanning according to the magnitude of the signal input to this input section, an attached pointer section; a signal selection section that selects an input signal to be displayed by the pointer section; and a signal selection section that selects an input signal to be displayed by the pointer section; An indicator recorder comprising: a display control section that moves the paint cartridge and causes the pointer section to display the input signal.