JPH02270Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a height adjustment device used to adjust the installation height of equipment.

When installing equipment, for example, if the heights of the legs of a plurality of equipment are uneven, it is likely that the equipment will wobble in the installed state, and operation in this state may become extremely unstable.

In particular, recently developed so-called keypad devices that are set on keyboards such as typewriters and use external signals to drive a solenoid to press the corresponding key can be used to adjust the height of the keyboard while it is installed on the keyboard. This is an important condition for accurately hitting keys.

For this reason, conventionally, as a height adjustment device for adjusting the installation height of such a device, an adjustment screw 2 is provided in a case 1 as shown in FIG. There is a double-nut type in which the height is adjusted using a button and then this state is maintained by tightening a nut 3.

However, with this type, the height adjustment using the screw 2 is likely to go awry due to loosening of the nut 3, and especially when the key is pressed using a solenoid as mentioned above, which generates vibration, the nut 3 cannot be tightened quickly. There was a drawback that the height adjustment using the screw 2 became unstable due to the loosening.

This invention was devised to eliminate the above-mentioned drawbacks, and the object is to provide a height adjustment device that can reliably and stably adjust the height of equipment.

An embodiment of this invention will be described below with reference to the drawings.

FIG. 2 shows an example in which this invention is applied to the above-mentioned keystroke device.

In the figure, reference numeral 11 denotes a device main body case, and the case 11 houses a plurality of solenoids 12 for pressing keys on a typewriter or the like.

Such a case 11 is provided with a height adjustment device 13 according to this invention. In this case, although only one height adjustment device 13 is shown in the illustrated example, it is actually provided at multiple locations on the case 11 (for example, at the four corners of the bottom of the case).

It takes. The height adjustment device 13 has a base 14 provided on the base of the case 11, for example, at the bottom. This base 1
4 has a cylindrical shape and has a threaded portion 14 on the circumferential surface of the hollow part.
1 is formed upright on the bottom of the case 11, and the hollow part is connected to the hole 11 on the bottom of the case 11.
It communicates with the outside via 1. Also this base 1
A notch 142 is formed in the circumferential surface of 4 and penetrates into the hollow portion, and an elastic member such as a snap pin 15 can be inserted into this notch 142 as shown in FIG.

A rod-shaped height adjusting screw 16 is screwed into the threaded portion 141 of the base 14 so as to protrude outward from the case 11. As shown in FIG. 4, this screw 16 forms a band-shaped flat part 161 along the axial direction of the circumferential surface, and when this flat part 161 is pressed by the pin 15, the screwed state is stabilized. I'm trying to make it happen.

An adjustment tool 17 for adjusting the rotation of the screw 16 is rotatably provided at a portion of the upper part of the case 11 facing the base 14. This adjustment tool 1
7 is a hole 1 into which one end of the screw 16 is inserted.
71. In this case, the hole 1 of the adjustment tool 17
As shown in FIG. 5, the cross section of the screw 71 is approximately the same as the cross section of the screw 16, and the screw 16 can be rotated by the rotation of the adjusting tool 17. Further, a groove 172 for rotating with a coin or the like is formed in the head of the adjuster 17.

Next, its effect will be explained.

Case 1 with such a height adjustment device 13
1 is installed so that the tip of the screw portion 16 is placed on a keyboard 20 such as a typewriter.

In this state, when a coin or the like is inserted into the groove 172 on the head of the adjuster 17 and the adjuster 17 is turned, the screw 16 rotates in the base 14 and the screw 16 protrudes from the bottom of the case 11. The protrusion amount of the tip is adjusted. As a result, the height of the case 11 relative to the keyboard 20 is adjusted, and is set to the optimum height for keystrokes by the solenoid 12.

In this case, the screw 1 rotated by the adjuster 17
6, each time the flat portion 161 coincides with the notch 142 of the base 14, the surface of the flat portion 161 is pressed by the snap pin 15 inserted from the notch 142, so that the threaded state of the screw 16 is stabilized in this state. be done. This means that the screw 16 can be adjusted by adjusting the adjusting tool 17.
Since the threaded state of the screw 16 is stabilized each time it rotates, the height can be adjusted with an accuracy of one pitch of the threaded portion.

Therefore, with this configuration, the screwed state of the screw is stabilized by pressing the flat surface of the height adjusting screw part with a snap pin, so it is resistant to external vibrations. This state can be maintained stably and the height can be adjusted reliably.
Moreover, it can be done stably.

Note that this invention is not limited to the above-mentioned embodiments, but can be implemented with appropriate modifications without changing the gist. For example, in the above description, the case where there is only one notch 142 formed on the circumferential surface of the base 14,
If two notches are formed at 180° intervals in the circumferential direction of the base circumferential surface, the thread size of the screw 16 will be 1/1/2.
The threaded state can be stabilized every 2 pitches. Similarly, if you form 3 places at 120° intervals, you can stabilize the threaded state every 1/3 pitch, and if you form 4 places at 90° intervals, you can do it every 1/4 pitch, so you can adjust the adjustment accuracy as you like. Can be done. Furthermore, even if the notch 142 is provided at one location, if two flat portions 161 are formed on the circumferential surface of the screw 16 at intervals of 180 degrees, the threaded state of the screw 16 will be adjusted every 1/2 pitch. can be stabilized, and if you form 3 places at 120° intervals in the same way, every 1/3 pitch,
If four locations are formed at 90° intervals, the threaded state can be stabilized at every 1/4 pitch, so the adjustment accuracy can be adjusted as desired. Of course, the notch 142 of the base 14
It is also possible to increase the adjustment accuracy by forming the flat portions 161 of the screw 16 at a plurality of locations. Further, in the above description, the screw 16 is turned using the adjusting tool 17, but the adjusting tool may be omitted and a foot portion serving as an adjusting knob may be provided at the tip of the screw 16. Further, in the above description, the snap pin 15 was described as the elastic member, but it is also possible to use something such as a ring rubber. Further, in the above description, an example has been described in which the present invention is applied to a keying device installed on a keyboard such as a typewriter, but it is of course possible to apply the present invention to other devices that require height adjustment.

As described above, according to this invention, it is possible to provide a height adjustment device that can reliably and stably adjust the height of equipment.

[Brief explanation of the drawing]

Fig. 1 is a schematic block diagram showing an example of a conventional height adjustment device, Fig. 2 is a schematic block diagram showing an embodiment of this invention, and Fig. 3 is a base and a snap pin used in the same embodiment. FIG. 4 is a perspective view of a threaded portion used in the same embodiment, and FIG. 5 is a sectional view taken along line A--A in FIG. 2. 1...Case, 2...Screw, 3...Nut, 1
1... Device main body case, 111... Hole, 12...
...Solenoid, 13...Height adjustment device, 14...
Base, 141... Threaded part, 142... Notch, 1
5... Snap pin, 16... Screw, 161...
Flat part, 17... Adjustment tool, 171... Missing part, 17
2...Mizobe, 20...keyboard.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A base that is installed upright on the base of the device, has a cylindrical shape, has a threaded portion on the inner peripheral surface of the hollow portion, and has a notch on the peripheral surface that penetrates the hollow portion. A height adjusting screw is threaded along the threaded portion of the base and has a flat portion along the axial direction of the circumferential surface, and a height adjusting screw is inserted into the notch of the base and presses the flat portion of the screw. A height adjustment device characterized by comprising an elastic member that stabilizes the mounting state. (2) The height adjustment device according to claim 1, wherein the height adjustment screw has an adjustment tool for rotational adjustment. (3) The height adjusting device according to claim 1 or 2, wherein the elastic member is a snap pin.