JP2578856Y2 - Cable fixing device for hand-held operation device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cable fixing device for a hand-held operating device used for teaching an industrial robot.

[0002]

2. Description of the Related Art Conventionally, as a case of a hand-held operation device, for example, as shown in FIG. 4, a case 1 is composed of an upper case 2 having a numeric keypad and a display unit, and a lower case 3 for storing a control board and the like.
It is divided into two. A U-shaped notch is provided on the lower case 3 side of the joint between the upper and lower cases to form a cable outlet 11. The cable 4 connecting the external control device of the hand-held operation device and the internal control board is subjected to a load such as bending, pulling, or twisting near the drawer port 11. In order to fix the cable fixing member 5, a cable fixing member 5 formed of a hollow resin or the like is covered at a position corresponding to the outlet 11 of the cable 4 (for example, 1-8448).
0, Japanese Utility Model Unexamined Publication No. 2-91387). The cable fixing device 5 has a hollow cable gland 6 provided with a spiral spring 61 at one end and a nut 63 having an internal thread 62 at the other end, and a male threaded portion screwed to the female threaded portion 62 at one end. A hollow nipple 7 provided with a nipple nut portion 72 at the center, a male screw portion 73 screwed to the lock nut 8 at the other end, and a lock nut 8 are provided. When fixing the cable 4 to the case 1, the cable 4 is passed through a nipple 7 in which a cable gland 6 and a lock nut 8 are screwed in advance, and a connector 10 is connected to the end of the cable 4. Next, the nipple 7 is screwed into the female screw portion 62, and the inner periphery of the tip of the nipple 7 is pressed against the cable 4 to fix the cable 4 to the cable gland 6. Next, the nipple 7 is inserted into the outlet 11 of the lower case 3.
Then, the lock nut 8 is tightened with the cable outlet 11 interposed between the nipple nut 72 and the nut 8, and the cable 4 is fixed to the case 1 together with the cable gland 6.

[0003]

However, in the prior art, when fixing the cable fixing member 5 to the case 1, it is necessary to tighten the lock nut 8 with a spanner in the case 1, but the inside of the case 1 is narrow. So a spanner is difficult to enter,
There is a problem that it takes time to tighten the lock nut 8. Further, the edge of the U-shaped draw-out port 11 provided at the joint of the lower case 3 is tightened with the nipple nut portion 72 and the lock nut 8 of the cable fixing device 5, but the diameters of the nipple nut portion 72 and the lock nut 8 are small. Therefore, the contact area between the case 1 and the nipple nut portion 72 and the lock nut 8 is small, and the teaching operation of the industrial robot is performed in various postures with the hand-held operating device. 8 applies an excessive force to the vicinity of the outlet 11, and there is a problem that the case 1 is damaged. In addition, U provided in the lower case
In order to seal the letter-shaped outlet with the upper case,
There is a disadvantage that the upper case has a complicated shape. SUMMARY OF THE INVENTION It is an object of the present invention to provide a hand-held operating device in which a cable fixing device can be easily attached and a case is not damaged even if the hand-held operating device is operated in any posture.

[0004]

In order to solve the above-mentioned problems, the present invention provides a male screw part screwed into a female screw part of a hollow cable gland, a nipple nut part provided at the center, and a male screw part provided at the other end. A cable fixing tool comprising a hollow nipple made of: and a lock nut screwed into a male screw portion provided at the other end of the nipple, and a cable outlet for fixing the cable fixing tool through which a cable passes. A cable fixing device for a hand-held operation device provided with mating surfaces of upper and lower cases, wherein a U-shaped groove having a flat portion perpendicular to the mating surface provided at a cable outlet of the upper and lower cases, A fixing plate having a cut portion that fits into the flat portion of the groove, and a concave portion into which a part of the nipple nut fits; and fixing the fixing plate to the nipple. Is that a lock nut to.

[0005]

After the cable is fixed to the cable fixing device by the above means, the fixing plate is fixed to the nipple, and the fixing plate is fitted to the flat portions of the U-shaped grooves provided in the upper and lower cases, and the cable fixing device is fixed. In addition to stopping the rotation, a large-diameter fixing plate is inserted into the U-shaped groove, and the upper and lower cases are tightened to fix the cable fixing device.
Therefore, the operation of fixing the cable fixing device to the case is simplified, the contact area between the cable fixing device and the case can be increased, and no excessive force is applied to the vicinity of the outlet.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
FIG. 1 is a sectional side view of an essential part showing an embodiment of the present invention, and FIG. 2 is a front view thereof, a part of which is shown in a section along the AA section shown in FIG. In the figure, a case 1 of a hand-held operation device is divided into an upper case 2 and a lower case 3, and a joint portion between the upper case 2 and the lower case 3 has a plane portion 2 perpendicular to the mating surface.
U-shaped grooves 22 and 32 having 1, 31 are provided, respectively, and the outlet 11 is formed by abutting the U-shaped grooves 22 and 32. Outlet 1 for cable 4
1 is a nut having a spiral spring 61 at one end and a female screw portion 62 at the other end at the other end. A hollow cable gland 6 having a portion 63, a male screw portion 71 screwed to the female screw portion 62 at one end, a nipple nut portion 72 at the center, and a male screw portion 73 screwed to the lock nut 8 at the other end. And a fixing plate 9 made of a highly rigid material such as a ring-shaped metal inserted between the lock nut 8 and the nipple nut portion 72. The outer diameter of the fixing plate 9 is larger than the nipple nut portion 72 and the lock nut 8, and as shown in FIG.
91 is provided, and when inserted into the U-shaped grooves 22, 32, it is fitted to the flat portions 21, 31 provided in the drawer opening 11 to function as a detent. One end surface of the fixing plate 9 is provided with a hexagonal concave portion 92 into which a part of the nipple nut portion 72 enters, so as not to rotate with respect to the nipple 7.

When attaching the cable 4 to the case 1,
First, the cable 4 is passed through the cable gland 6 and the nipple 7, the end of the cable 4 is pulled out from the male screw portion 73 by a required length, and the nipple 7 is fixed to the cable gland 6. Next, the fixing plate 9 is inserted into the male screw portion 73 of the nipple 7 so that the concave portion of the fixing plate 9 fits a part of the nipple nut portion 72 of the nipple 7.
It is fixed to the nipple 7 by a lock nut 8. after that,
A connector 10 for connecting to a control board is connected to an end of the cable 4. In this state, the fixing plate 9 is inserted into the U-shaped groove 32 of the lower case 3, and then, while the U-shaped groove 22 of the upper case 2 is inserted into the fixing plate 9, the upper case 2 is butted against the lower case, and The cable fixture is fixed to the case 1 by tightening the case 2 and the lower case 3. As described above, the cable 4 is fixed to the cable fixing device 5, and the large-diameter fixing plate 9 that is prevented from rotating between the nipple nut portion 72 and the lock nut 8 of the cable fixing device 5 is provided on the upper and lower cases. Since the cable fixing member 5 and the case 1 are fixed by being fitted into the groove-shaped grooves 22 and 23 while being prevented from rotating, the contact area between the cable fixing member 5 and the case 1 can be increased. Mouth 1
The case 1 can be prevented from being damaged without applying excessive force to the vicinity of the case 1.

[0008]

As described above, according to the present invention, since the cable fixing devices are fixed to the upper and lower cases via the fixing plate having a large diameter, the operation of fixing the cable fixing devices to the case is performed. In addition to the simplicity, the contact area between the cable fixture and the case can be increased, so that an unnecessary force is not applied to the vicinity of the outlet and the hand-held operation device is prevented from being damaged.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing an embodiment of the present invention.

FIG. 2 is a front view showing an embodiment of the present invention, a part of which is shown in cross section.

FIGS. 3A and 3B are a front view and a side sectional view showing a fixing plate according to the embodiment of the present invention; FIGS.

FIG. 4 is a side sectional view showing a conventional example.

[Explanation of symbols]

1 case, 11 drawer, 2 upper case, 21
Flat part, 22 U-shaped groove, 3 lower case, 31 Flat part, 32 U-shaped groove, 4 cables, 5 cable fixing device, 6 cable gland, 61 spiral spring, 6
2 Female thread, 63 nut, 7 nipple, 71 male thread, 72 nipple nut, 73 male thread, 8
Lock nut, 9 fixing plate, 10 connector

Claims (1)

(57) [Scope of request for utility model registration] 1. A hollow nipple comprising a male screw part screwed into a female screw part of a hollow cable gland, a nipple nut part provided at the center, and a male screw part provided at the other end, and provided at the other end of the nipple. And a lock nut comprising a lock nut screwed into the male screw portion, and a cable outlet for fixing the cable fastener through which the cable is inserted is provided at the mating surface of the upper and lower cases. In the cable fixing device, a U-shaped groove having a flat portion perpendicular to a mating surface provided in a cable outlet of the upper and lower cases, and a cut portion fitted to the flat portion of the U-shaped groove, and A hand-held operation, comprising: a fixing plate having a concave portion into which a part of the nipple nut portion is fitted; and a lock nut for fixing the fixing plate to the nipple. A cable fixing device for the potter.