JPH0413659Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a drive shaft take-out device, and more particularly to a drive shaft take-out device that forms an appropriate angle with the rotating shaft of an indicating instrument.

[Conventional technology and its problems]

A conventional device of this type, for example, a device for taking out a drive shaft of an eddy current type indicator as shown in FIGS. A bearing 3 is fixed to the bottom wall of the plate 2 by a caulking part 4, a rotating shaft 5 is pivotally supported on the bearing 3, a magnet 6 is provided on the upper end of the rotating shaft 5, and the upper end side of the pointer shaft 7 is attached to the plate 2. A guide plate 8 is provided at the lower part of the pointer shaft 7, and its lower end side is supported rotatably on the rotating shaft 5, and the guide plate 8 is disposed with a small space between the magnet 6 and the pointer shaft 7. Fix the pointer 9 and insert the bearing 3 into the mounting hole 1 of the instrument case 10.
gears 14 and 1 that are inserted into the shaft 1 and pivotally support a drive shaft 13 that is perpendicular to the rotating shaft 5 and connected to the flexible cable 12, and that connect both shafts 5 and 13 to each other;
5 is fitted into the bearing 3 from the outside of the instrument case 10, and the gear box 16, the instrument case 10, and the bearing 3 are fixed together by a plurality of screws 17. In this case, since the drive shaft 13 can be pulled out and formed at a set angle with respect to the rotating shaft 5, the flexible cable 12 can be routed and guided while preventing interference with other members arranged on the outside of the instrument case 10. However, since this direction of take-out is regulated, it is not possible to finely adjust the direction of the pull-out of the flexible cable 12 connected to the drive shaft 13. Flexible cable that can be attached 1
2 may interfere with other members.

[Purpose of invention]

An object of the present invention is to make it possible to select the direction in which the drive shaft is taken out using a simple mounting structure, thereby achieving miniaturization.

[Summary of the idea]

The present invention provides a plurality of sets of fixing holes for at least one of the frames and bearings in concentric circles around the rotating shaft, and the direction of the bearing for fixing the gearbox is selected by the combination of the fixing holes on both sides. It can be fixed to

[Embodiment of the invention] Figures 1 to 4, 6, and 7 show the first embodiment, and the description will be made without omitting the explanation of the eddy current type part similar to that in Figures 8 and 9. , a bearing 22 that pivotally supports the rotating shaft 21 on the bottom wall of the frame 20 formed in a U-shape.
A mounting hole 23 is provided, and a set of two fixing holes 24 is provided at a concentric diagonal location around the rotating shaft 21 around the mounting hole 23.
A plurality of sets of two fixing holes 24a are provided in locations corresponding to the above-mentioned concentric circles, for example, three sets in FIG. It is fixed with screws 25.

The bearing 22 is also provided with four fixing holes 26 and 27. Two screws 28 are used to screw the bearing 22 and the instrument case 29 into the fixing holes 26 to secure them. There are two screws 28 in the fixing hole 27.
The gearbox 30 is positioned and fixed to the bearing 22 by a. The gear box 30 supports a drive shaft 32 that is orthogonal to the rotating shaft 26 and connected to the flexible cable 31, and includes a driving gear 33 provided on the driving shaft 32 and a driven gear 34 provided on the rotating shaft 21. Built-in. Therefore, in order to select the direction in which the flexible cable 31 is routed, three sets of fixing holes 24a provided in the bearing 22 are used.
By aligning one set with the fixing hole 24 provided in the frame 20, the bearing 22 can be easily fixed with the screw 25 in the desired routing direction, and in this way, the gearbox 30 can be attached to the bearing 22 in the selected direction. is positioned and fixed by the fixing hole 27 and the screw 28a, and the bearing 22 is fixed to the instrument case 29 by the fixing hole 26 and the screw 28. In that case, a recess 35 is formed in the bearing 22 to prevent the head of the screw 25 from protruding.

FIG. 5 shows a second embodiment, and the same parts as in the above embodiment are denoted by the same reference numerals.
A mounting hole 23 for the bearing 22 is provided in the bottom wall of the bearing 22, and three sets of two fixing holes 24 are provided in concentric circles around the rotating shaft 21 around the mounting hole 23, and A set of two fixing holes 24a are provided at locations corresponding to the two fixing holes 24a, and the direction of the bearing 22 is selected by the combination of both fixing holes 24, 24a, and is fixed with two screws 25. Therefore, the direction in which the flexible cable 31 is routed can be selected by aligning one set of fixing holes 24a provided in the bearing 22 with one of the three sets of fixing holes 24 provided in the frame 20. The gearbox 30 can be easily fixed with the screw 25 in the desired direction of routing, and the gearbox 30 can be attached to the bearing 22 in the selected direction in this way through the fixing hole 27 and the screw 2.
The bearing 2 is positioned and fixed by the bearing 8a.
2 is attached to the instrument case 29 by the fixing hole 26 and screw 28.
Fixed. In each of the above embodiments, a plurality of sets of fixing holes 24, 24a are provided in only one of the frame 20 and the bearing 22, but a plurality of sets of fixing holes 24, 24a are provided in both the frame 20 and the bearing 22. 2
4, 24a may be provided.

As described above, the present invention provides a plurality of sets of at least one of the bearings 22 for fixing the frame 20 and the gearbox 30 on a concentric circle centered on the rotating shaft 21, and each of the bearings 22 is provided with fixing holes 24, 24a. Since the bearing 22 can be fixed to the frame 20 by selecting the direction by combining the fixing holes 24 and 24a on both sides, it is possible to form multiple sets of fixing holes 24a even though the bearing 22 is small. Easy and free selection. In addition, a bearing 2 is attached to the frame 20.
2 can be omitted.

[Effect of idea]

The present invention includes a plurality of sets of at least one of the bearings for fixing the frame and the gearbox on concentric circles centered on the rotation axis, each having a fixing hole, and the direction of the bearings being selected by the combination of the fixing holes on both sides. Since the bearing can be fixed to the frame, the small bearing can be easily and freely selected, and the bearing crimping work can be eliminated, which is very effective.

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view of the frame, bearing, and gearbox of the first embodiment, Fig. 2 is a sectional view showing the assembled state, Fig. 3 is a bottom view, and Fig. 4 is the drive shaft and drive gear. 5 is an exploded perspective view of the frame and bearing of the second embodiment, FIG. 6 is a sectional view when used in an eddy current type instrument, FIG. 7 is a perspective view, and FIG. 8 is a conventional FIG. 9 is a bottom view of the same. 20... Frame, 21... Rotating shaft, 22...
Bearing, 24, 24a...Fixing hole, 26, 27...
Fixing hole, 30...gear box, 32...drive shaft.

Claims (1)

[Scope of utility model registration request] The drive shaft is constructed by providing a bearing on the frame for mounting the rotating shaft, and fixing to this bearing a gear box containing a gear that supports the drive shaft forming an appropriate angle with the rotating shaft and interconnecting both shafts. In the take-out device, a plurality of sets of at least one of the frame and a bearing for fixing the gearbox are provided on a concentric circle centered on the rotation axis, and a fixing hole is provided in each set, and the direction of the bearing is selected by the combination of the fixing holes of both of the bearings. A drive shaft take-out device characterized in that the drive shaft can be fixed to the frame.