JPS6236091Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a pointer used in an indicating instrument, and relates to a pointer structure that can be attached to the mechanical body of the instrument without particularly requiring adjustment of the index.

In the instrument panel installed in modern cars,
Due to design considerations, scale plates with multiple instrument scales, display holes, display characters, etc. on a single panel have come to be required.In instrument panels using this type of scale plate, As shown in FIG. 1, a pointer 1 is fixed by being press-fitted into a pointer shaft 4 provided in a mechanical body 3 of an indicating instrument 2. However, in this instrument panel, when repairing the dial 5 or the mechanical body 3, the dial 5 or the mechanical body 3 must be pulled out from the pointer shaft 4.
unable to leave. Therefore, when assembling after repair, the pointer 1 has to be press-fitted into the pointer shaft 4 again, and therefore the finger index of the pointer must be adjusted again. However, this kind of finger adjustment cannot be done without a finger adjustment machine, so while there is no problem in places that have one, it is impossible to perform the finger adjustment work in places without such a finger adjustment machine. In such cases, the entire indicating instrument is replaced with a new one. This resulted in a drawback that repair costs were high.

The present invention has been made in view of the above, and provides a pointer that does not require index adjustment when replacing the dial 5 or pointer 1 by allowing the pointer to be always attached to a fixed position on the pointer shaft. The purpose is to

The present invention will be explained in detail below based on the embodiments shown in FIGS. 2 to 10.

The indicator 11 has an instrument mechanical body 12, a pointer 14 attached to the tip of a pointer shaft 13 provided on the instrument mechanism 12, and a dial 15 that displays the indicated value of the pointer 14. However, the main point of this embodiment is the fixed portion between the pointer shaft 13 and the pointer 14. That is, the pointer stand 16 is located at the tip of the pointer shaft 13.
The pointer main body 24 is fixed to the main body 24 through the . As shown in FIGS. 6 to 8, the shape of the pointer stand 16 includes a press-fit hole 17 for the pointer shaft, an engaging step portion 18 projecting at diametrically symmetrical positions, and both engaging step portions. Positioning protrusions 19 protruding from both sides of 18 are integrally formed. Further, as shown in FIGS. 9 and 10, the pointer main body 23 has a fitting recess 20 into which the pointer base 16 is fitted, and a skirt portion 21 of the fitting recess 20 at diametrically symmetrical positions. Moreover, it has a pair of engaging claw pieces 22 that protrude inwardly. 23 is a balance weight attached to the pointer 14, 25
26 is a mechanical body mounting screw, and 26 is a pointer shaft insertion hole provided on the dial plate and formed in an inner diameter through which the pointer stand 16 can freely pass through.

The present embodiment is constructed as described above, and its operation will be explained next. When attaching the pointer 14 to the pointer shaft 13, first the pointer is inserted into the fitting recess 20 of the pointer body 24. The pointer main body 24 and pointer stand 16 are connected to each other by fitting the bases 16 together and locking the engaging claw piece 22 provided on the pointer body 24 to the engaging stepped portion 18 of the pointer base 16. Due to the action of the positioning protrusion 19, the two are integrally connected without being rotated. The pointer 14 in which the pointer main body 24 and pointer stand 16 are integrally combined in this way,
The pointer shaft 13 is positioned at a predetermined position using a pointer adjustment device, and then the pointer shaft 13 is held in that position and press-fitted into the press-fit hole of the pointer stand 16 to fix the pointer shaft 13 in place.

Therefore, when removing the pointer from the machine body when repairing the dial 15 or the machine body 12, etc., it is necessary to disengage the engagement claw piece 22 provided on the pointer body 24 and the engagement stepped portion 18 of the pointer base 16. , the pointer body 24 can be removed from the machine body.

Since the pointer base 16 remains fixed to the pointer 13, if the engaging claw piece 22 of the pointer body 24 is engaged with the engaging stepped portion 18 of the pointer base 16 again, the pointer body 2
4 can be installed at this location.

As described above, in the present invention, the press-fit hole 1 passes through the pointer shaft insertion hole 26 provided in the dial 15 of the indicating instrument 11 and fits into the pointer shaft 13 of the indicating instrument 11.
The pointer main body 24, which rotates along the scale on the pointer base 16 and the dial 15, has engaging parts 18 and 22 that engage with each other at predetermined positions. Since this is a pointer in which the pointer body 24 is removably attached to the pointer base 16, the pointer body is always attached to the pointer base at a fixed position, and the pointer base is also attached to the pointer base. The instrument body can be removed and repaired while it remains fixed to the shaft, so when reassembling the instrument, you can always ensure a constant pointer position by simply fitting the pointer body into the pointer base, which eliminates the need for conventional fingers. This eliminates the need for adjusting the index using a gauge adjustment device, and has the effect of saving labor in repair work of indicating instruments, etc. Further, according to the present invention, the engagement between the pointer base 16 and the pointer body 23 is such that the engagement claw piece 22 of the pointer body 23 is engaged with the engagement stepped portion 18 between the positioning protrusions 19 of the pointer base 16. As a result, the moment of inertia of the pointer shaft system can be reduced compared to conventional models in which the pointer is detachably attached to the pointer shaft using the attractive force of a permanent magnet, making it possible to respond even in instruments with minute pointer drive torque. In the case of a system in which the meter drive mechanism is operated by magnetic force, the magnetic flux from the permanent magnet affects the meter drive mechanism and the accuracy is poor in the case of the conventional type with a permanent magnet in the pointer shaft. Compared to the above, the present invention does not generate magnetic flux that adversely affects the instrument drive mechanism, so it has the effect of providing a highly accurate instrument. Furthermore, the attachment and detachment of the engagement mechanism of the present invention is as follows:
Since it can be attached and detached without operating a special hook or locking member, it is not only easy to attach and detach, but also there is no risk of erroneous operation, which has the effect of preventing damage to the pointer shaft due to erroneous attachment and detachment operations.

[Brief explanation of the drawing]

Figure 1 is a sectional view of the pointer of a conventional indicating instrument;
The figure is a sectional view of an indicating instrument equipped with an embodiment of this invention, Figures 3, 4, and 5 are a front view of only the pointer of the same embodiment, a partially cutaway side view, a back view, and Figure 6.
Figure 7 is a front view and side view showing an embodiment of only the pointer stand, Figure 8 is a sectional view taken along the - line of Figure 6, and Figures 9 and 10 are of the same embodiment as above. They are a partially cutaway side view and a back view of the pointer body. 11...Indication instrument, 12...Mechanical body, 13...
Pointer shaft, 14... Pointer, 15... Dial plate, 16...
... Pointer stand, 17 ... Press-fit hole, 18 ... Engagement stepped portion,
19... Positioning protrusion, 20... Fitting recess, 21
... Skirt part, 22 ... Engaging claw piece, 23 ... Balance weight, 24 ... Pointer body, 25 ... Mounting screw, 26 ... Pointer shaft insertion hole.

Claims (1)

[Scope of utility model registration request] A press-fit hole 17 that passes through the pointer shaft insertion hole 26 provided in the dial 15 of the indicator 11 and fits into the pointer shaft 13 of the indicator 11, and an engagement step 18 that protrudes at a diametrically symmetrical position. and both engaging step portions 1
a pointer base 16 having positioning protrusions 19 integrally formed on both sides of the dial 8; a fitting recess 20 that rotates along the scale on the dial plate 15 and into which the pointer base 16 is fitted; Skirt portion 2 of the fitting recess 20
1, the pointer main body 23 has a pair of engaging claw pieces 22 provided at diametrically symmetrical positions and protruding inwardly, and the engaging claw pieces 22 are attached to the engaging stepped portion 18 of the pointer base 16. A pointer characterized by being engaged.