JPH0334657Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention mainly relates to a spring balance with an improved index portion.

[Prior art] and [Problems to be solved by the invention] Conventionally, in this type of spring scale, the indicator member 8 is fixed to the inner cylinder 4 by a pair of upper and lower fixing screws 9, 9', as shown in FIG. When a load larger than the maximum weight is applied, the head of the lower fixing screw 9' comes into contact with the lower edge 7' of the slit 7, and the stopper function due to this contact prevents damage by receiving the load. It was hot. In this way, since the load is applied to one of the lower fixing screws 9', the mounting portion of the fixing screw 9' is likely to be damaged. In addition, the through holes 12, 12' of the fixing screws 9, 9' on both the upper and lower sides of the index member 8 are made slightly larger than the thickness of the same fixing screws 9, 9', so that In order to horizontally adjust the index line 8'', it is necessary to adjust the fixing screws 9, 9' on both the upper and lower sides, that is, it is necessary to perform adjustment work more than once, and the leveling work is cumbersome and difficult to perform.

[Means for solving problems]

This invention consists of an outer cylinder 2 with a hanging handle connected to the upper end.
and an inner cylinder 4 with a hanging part connected to a hook 3 for hanging an object at the lower end, and the inner cylinder 4 is inserted into the inner cylinder 4 and the upper end is locked to the upper end of the outer cylinder 2, and the lower end is locked to the lower end of the inner cylinder 4, respectively. A moving slit 7 for an indicator member 8 cut into the outer cylinder 2 and having a weight scale 6 displayed on the incisal edge corresponds to the zero scale 6' of the weight scale 6 when no load is applied to the inner cylinder 4. In a spring weight equipped with an index member 8 attached to a portion exposed to the slit 7, the lower end 8' of the index member 8 is set at a height such that it always enters the slit 7, and the index member 8 with respect to the inner cylinder 4 is set at a height. To attach the member, the upper end of the indicator member 8 is fixed with a single screw 9, and the lower end 8' is fixed by the protrusion 10 provided on the indicator member 8 and the inner cylinder 4, and the play in the fitting hole 11 of the protrusion 10. The gist of the present invention is that the fixation is achieved by fitting in a non-contact state, and this gist solves the above-mentioned defects.

〔Example〕

In the embodiment of the present application shown in the figure, an inner cylinder 4 whose lower end is closed by a bottom cover 15 is vertically slidably inserted into an outer cylinder 2 whose upper end is closed by a canopy 14, and a coil spring 5 is inserted into the inner cylinder 4. The upper end is connected to the upper end of the outer cylinder 2 via a canopy 14 and an adjustment screw device 16, and the lower end is connected to the lower end of the inner cylinder 4 via a bottom cover 15 and a connecting ring 17, respectively, and is suspended above the canopy 14. The hanging handle 1 is attached to the bottom lid 1 through the ring 18.
At the same time, a moving slit 7 for an index member 8, which will be described later, is provided in the outer cylinder 2, and a weight scale 6 is displayed on the cut line of the slit 7, Furthermore, an indicator member 8 is arranged at a location on the outer surface of the inner cylinder 4 that corresponds to the zero scale 6' of the weight scale 6 when no load is applied and is exposed to the slit 7, and the upper part of the indicator member 8 is connected to a single point. It is fixed to the inner cylinder 4 with fixing screws 9, and a protrusion 10 is also integrally provided on the inner surface of the lower part, so that the protrusion 10 is fitted into the fitting hole 11 previously provided in the inner cylinder 4 without play. Therefore, the index member 8 is fixed to the inner cylinder 4, and the lower end surface 8' of the index member 8 is set at a height such that it always enters the slit.

[Effect]

Since the present invention has the above-described structure, when a load larger than the maximum weight is applied, the lower end 8' of the index member 8 engages with the lower edge 7' of the slit 7 and functions as a stopper, increasing the strength. It is less likely to be damaged, and the leveling of the index line 8'' of the index member 8 can be easily and quickly done by adjusting the upper screw 9, that is, by one adjustment operation.

[Effect of idea]

Since the present invention is as described above, it has excellent effects that can completely achieve the intended purpose.

[Brief explanation of the drawing]

The figures show an embodiment of the spring balance of the present invention.
The figure is a sectional view taken along the line A--A in FIG. 1, and FIG. 3 is a sectional view of the main part showing the conventional one. 1...Hanging handle, 2...Outer tube, 3...Key, 4...Inner tube, 5...Coil spring, 6...Weight scale, 6'...Scale, 7...Slit, 8...
Indicator member, 8'...lower end, 8''...indicator line, 9,
9'...Fixing screw, 10...Protrusion, 11...Fitting hole, 12, 12'...Through hole, 14...Canopy, 15
... Bottom cover, 16 ... Adjustment screw device, 17 ... Connection ring, 18, 19 ... Suspension ring.

Claims (1)

[Scope of Claim for Utility Model Registration] An outer cylinder 2 with a hanging handle connected to the upper end, an inner cylinder 4 with a hanging part connected to a hook 3 for hanging an object, etc. at the lower end, and an inner cylinder 4 inserted into the inner cylinder 4. A coil spring 5 whose upper end is fixed to the upper end of the outer cylinder 2 and whose lower end is fixed to the lower end of the inner cylinder 4, a movable slit 7 for an index member 8 cut into the outer cylinder 2 and with a weight scale 6 displayed on the cutting edge, and the inner cylinder. Zero scale 6' of weight scale 6 at no load at 4
In the spring weight, the lower end 8' of the indicator member 8 is set at a height such that it always enters the slit 7, and the inner The index member is attached to the cylinder 4 by fixing the upper end of the index member 8 with one screw 9, and the lower end 8' is fitted with a projection 10 provided on the index member 8 and the inner cylinder 4. A spring fixture characterized in that it is fixed by fitting the holes 11 with no play.