JPS61133532A - Lug holder for cathode-ray tube - Google Patents

Abstract

PURPOSE:To prevent the collision between the lug and cathode-ray tube when said tube is mounted on the strap winder and, permit the lug to make close contact with the corners of the cathode-ray tube by providing a mechanism for holding the lug to the outer circumference of the cathode-ray tube firmly and movably within a certain range. CONSTITUTION:The holder 32 for a lug 4 is provided on the top end of a lug holder 30. The lug holder 30 is provided on a strap winder 16 so that the lugs 4 can be held in the position opposite to the tour corners of the outer circumference on the panel 2 of a color cathode-ray tube 1. The tape winder 40 serves so that the strap 5 sent out from a feed roller 43 surrounds around the lugs 4 arranged circumferentially by the lug holder 30 and when the cathode-ray tube 1 is supplied, the lugs 4 are compressed together with the strap 5.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention provides a method for protecting cathode ray tubes, such as color cathode ray tubes, from explosion-proofing by wrapping metallic tape around the outer periphery of the cathode ray tube. This invention relates to a cathode ray tube lug holding device for holding a lug that is held in place.

[Technical background of the invention and its problems] Cathode! 4! Explosion-proof treatment for tubes, especially color cathode ray tubes (J,
As shown in FIGS. 11 and 12, an adhesive tape 3 made of, for example, glass cloth tape with adhesive surfaces on both sides is wrapped in advance around the outer peripheral surface of the panel 2 of the cathode ray tube 1.
After the above-mentioned panel 2 has been installed, the lugs 4, which are parts for holding cathode ray tubes, are inserted into the four corners of the outer periphery of the panel 2, and an explosion-proof tape 5 (hereinafter referred to as a wrap) made of a thin metal strip is inserted into the four corners of the outer periphery of the panel 2. It is performed by winding (referred to as wraps) and joining them by welding or caulking both ends.

The above-mentioned lugs are formed by bending a single rectangular metal plate at right angles, and one of the lugs is attached to the corner outer periphery of the panel 2 of the cathode ray tube 1 with a mounting part 6 for attaching it to the cathode ray tube 1. The surface is cured to form a curve, and in use, an engaging hole 8 is bored through the engaging portion 7, and the d portion When placed on the surface, the engaging portion 7 stands upright against the outer peripheral surface of the panel 2 of the cathode ray tube 1.

- The rim band 4 shown in FIG.
pre-welded. And volume f of lap 1 to wrap 5
For winding, the rim band 15 is attached to the outer periphery of the panel 2 of the brown casing 1 (as shown in FIG. In this state, winding f=j lj of slap I to wrap 5 is performed.

However, in the conventional winding method described above, the rim band 15 is required to position the lug 4, and the structure of the cathode ray tube 1 that comes down after winding the strap 5 times is made into a doll, and the lug is placed on the rim band 15 in advance. The number of manufacturing steps, such as welding 4, was increased, leading to a 1 to 2 high price. Furthermore, the removal of the rim band 15 from the cathode ray tube 1 has to be done manually, making it difficult to automate the equipment.

[Purpose of the invention]

An object of the present invention is to be able to hold the lugs in positions facing the four corners of the cathode ray tube without interfering with the mounting operation of the cathode ray tube on the winding device, and to withstand strong tension during winding. It is an object of the present invention to provide a lug holding device for a cathode ray tube that does not cause deformation of the lug, can be easily wrapped and removed later, and can facilitate automation of the entire equipment.

[First Requirement of the Invention] The present invention provides a lug consisting of an engaging portion that is curved around the outer periphery of a corner of a cathode ray tube and that is substantially perpendicular to the mounting portion of the cathode ray tube and that has an engaging hole. In a lug holding device for a cathode ray tube, the lug holding device holds the lugs at opposing positions at the four corners of the cathode ray tube. The engagement portion of the lug is formed from the oblique side of the tip and has a smaller area than the engagement hole on the bottom surface of the cat, and the engagement hole is loosely fitted into this protrusion. a base on which a mounting branch is slidably mounted; a slider that is slidably mounted on the base and is driven to move forward and backward with respect to the branch; and the base. One end is rotatably supported on the upper part, and the other end has a presser part that presses and holds the upper surface of the engaging part of the lug mounted on the support part, and this presser part is always pressed against the support part. Press the upper surface of the engaging part of the lug supported on the aforementioned branch with the lug presser, which is receiving a spring force in the direction of
While holding the attachment part of this lug in the predetermined attachment state, move the slider forward onto the mounting part, press the top surface of the engagement part of the lug with the bottom surface of the slider instead of the lug presser, and loosely fit into the engagement hole. The lug is firmly held together with the protrusion, and the lug can be moved both to a position in contact with the outer periphery of the cathode ray tube and to a position retracted from this position by sliding the engaging part that falls on the mounting part, and the cathode ray tube is This prevents the falling lugs from colliding with the outer peripheral surface of the cathode ray tube during installation, and maintains good adhesion during wrapping.

[Embodiments of the invention]

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

FIG. 1 shows the construction of a lug holding device 30 according to the invention. In the figure, reference numeral 31 denotes a long base, and a mounting support 32 for supporting the lug 4 is provided at the tip thereof. This support portion 32 is a groove-shaped member having a width approximately equal to the width of the engaging portion 7 of the lug 4 and a depth slightly larger than the thickness of the engaging portion 7 of the bracket. Formed obliquely laterally. Furthermore, a protrusion 33 having a small area is provided at the bottom of the groove, which corresponds to the engagement hole 8 provided in the engagement portion 7. The lug 4 is inserted diagonally from the side into the groove bottom along the groove, and is slidably supported on the mounting support 32 by loosely fitting the engagement hole 8 into the protrusion 33.

-〇- 34 is a slider, which is slidably mounted on the base 31 and is connected to a cylinder 35 as shown in Fig. 3, and when the cylinder 35 is operated, the aforementioned branch 32 Upper OJ: It is driven forward and backward between the retracted positions that are removed from the mounting support 32. 3G & ii Guide guides the slider 34 in a predetermined forward and backward direction with - (-).

37 holds the lug, and one end is rotatably attached to the support part 31a on the base 31, and the other end is attached to the lug 4 supported on the aforementioned branch 32. A presser portion 37a that presses and holds the upper surface of the joint portion 7 is integrally provided.The lug presser 37 is held by a spring 38.
a is constantly receiving rotational force in the direction of pressing on the mounting support 32.

As shown in FIG. 8, the lug holding device 30 of No. 14 is mounted on the strap winding device 16 in order to hold the lug 4 in a position facing and covering the four corners of the outer periphery of the panel 2 of the color cathode ray tube 1, which is a cathode ray tube. ” They are arranged according to the positional relationship described in 1.

This slap wrapping device 1G supports the cathode ray tube 1 with its panel 2 facing downward, and lowers the cathode ray tube 1 to perform predetermined wrapping (positioning at the ``1'' position). 20 (shown in FIGS. 9 and 10), and a tape winding device 40 for winding the strap 5 around the panel 2 of the cathode ray tube 1.

The cathode ray tube supply device 20 includes a suction pad 22 that supports the cathode ray tube 1 on the upper end of the upright support shaft 21.
The suction pad 22 has a suction cup-like suction 7) on the top surface.
The front surface of the panel 2 of the cathode ray tube 1 is attracted to and held by the suction part 23, and the upper part of the palm is in the position.

The above-mentioned 7-ply winding device 40 includes a feed roller 43 that sends out the slips 1 to 5 from a reel 41 on which the slips 1 to 5 are wound, and
A guide (not shown) surrounds the lugs 4 disposed on all sides from the outside by the lug holding device 30 that guided the lap 5, and extends in an annular manner around the circumference H of the space where the cathode ray tube 1 is to be supplied. As shown, a first grip 44 that grips the tips of the slips 1 to 5 formed in an annular shape by this guide is used to heat the slips 1 to 5 held by the first grip 44. (Pull tensioner 45 and the cathode ray tubes of S1 to Wrap 5 tightened by this tensioner 45.) a second grip 46 that grips the end of the end of the wrap 1, a cutter 47 that cuts the final end of the end of the wrap 5 while being gripped by the second grip 46; It has a welder 48 for welding the overlapping portion of the end of the wrap 5 at the beginning and the end of the end.

The first and second grips 44, 46 and welder 48 are movable forward and backward relative to the slaps 1 to 5. The welder 48 welds by applying pressure with a pair of electrodes 49.degree. 50.

In the above configuration, first, the lug 4 is attached to each lug holding device 30.
Install. That is, the engaging portion 7 of the lug 4 is inserted from the diagonal lateral direction into the mounting support 32 (not shown in FIG. 1), and the engaging hole 8
is loosely fitted into the protrusion 33. Therefore, the engaging portion 7 is slidably supported on the mounting support 32 within the loosely fitting range between the engaging hole 8 and the portion 33 of the projection 9. In this state, the upper surface of the engaging part 7 is pressed by the holding part 37a of the lug presser 31, as shown in FIGS. This prevents it from tilting as shown by the two-dot chain line in FIG.

Next, the cylinder 35 is operated to advance the slider 34 onto the mounting portion 32. Therefore, the slider 34 slides onto the engaging portion 7 of the lug 4 held by the lug presser 37. Moreover, on the top surface of this slider 34,
As shown in FIG. 3, an inclined groove 34a is formed that slopes downward toward the front end (left end in the figure), and pushes up the holding part 37a of the lug holding part 37 as it slides onto the engaging part 7. Finally, as shown in FIGS. 4 and 5, the upper surface of the engaging portion 7 is held down instead of the lug presser 37, and the lug is pressed together with the protrusion 33 that is loosely fitted into the engaging hole 8. 4 is slidably and firmly held. At this time, lag 4 is
The engaging part 7 is moved back to the deepest position on the mounting support 32.

Note that when the slider 34 slides onto the mounting support 32, if the lug 4 is not held down by the lug presser 37,
Since the lug 4 is tilted as described in 1), the mounting branch 32
It gets caught in the front end of the slider 34 that is sliding upward, and is thrown out. Therefore,
Holding down the engaging portion 7 of the lug 4 with the lug presser 37 is essential for reliably holding the lug 4 in the correct state.

Next, in order to surround the outer circumferences U of the mounting portions 6 of the four lugs 4 positioned by the lug holding device 30,
(“J device i”; 40 feed rollers 43 are driven to
~The wrap 5 is sent out, and the lug 4 is moved by a guide (not shown).
surrounding it and guiding it in a ring as shown in Figure 9.
~The end of the wrap 5*i: is held with the first grip 44.

At this time, the suction pad 22 of the cathode ray tube supply device 20 is in the TR position with the cathode ray tube 1 being sucked and held. For this purpose, the cathode ray tube supply device 20 is operated to lower the cathode ray tube 1, so that the outer periphery of the panel 2 faces the inner periphery of the slaps 1 to 5, and the four corners are arranged as shown in FIG. The lug 4 is positioned opposite to the inside of the recessed portion G of the lug 4.

At this moment, the lug 4 is at the rear 31u as described above, so the lug 4 collides with the outer periphery of the panel 2 of the cathode ray tube 1.
This won't hurt.

Next, the strap 5 is heated with a heater (not shown) to cause a certain amount of elongation of the foil. After that, the tensioner 45 pulls and wraps the wraps I to Wrap 5 until a predetermined tightening force is generated on the outer periphery of the panel 2 of the cathode ray tube 1, and the end of the wrap is gripped by the second grip 4G. cutter 4
The final end is cut at 7.

At this time, the end portion of the end of the winding slightly matches the tip of the beginning of the winding. Finally, the welder 48 moves backwards to this overlapping portion of the straps 5 to weld.

At the same time when the strips 1 to 50 wraps are wound, the engaging portion 7 of the lug 4 slides on the mounting portion 32 toward the panel 2 side of the cathode ray tube 1, and the panel 2 is sandwiched between the strips 1 to 5. Attached to the four corners of the

After wrapping the strap 5, the lug holding device 30 is moved by the cylinder 35 to the part 12 shown in FIGS. 2 and 3.
− position) Thereafter, the cathode ray tube 1 is overlaid by the cathode ray tube supply device 20.
Remove from device 16. At this point, the lug 4 that has been placed on the cathode ray tube 1 is also placed on the cathode ray tube 1, but as shown in FIGS. The engaging portion 7 of No. 4 comes off from the lug presser 37. Therefore, the above-mentioned upper part does not hinder the operation.
No manual labor is required to attach or remove the cathode ray tube 1 from the wrap wrapping device 1G, and the equipment can be easily automated.

〔Effect of the invention〕

According to the present invention, since the lug can move forward and backward within a certain range and is firmly held with respect to the outer circumference of the cathode ray tube,
~ When attached to a wrap winding device (to prevent collision with the wrap lugs, and wrap around the four corners of the cathode ray tube) It can be reliably held without twisting or other deformation under the strong tensile force that is applied during installation, and can easily be used for equipment automation.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of the cathode ray tube lug holding device according to the present invention, and FIGS. 2 and 3 are perspective views showing the lug holding device according to the present invention, and side sectional view,
FIGS. 4 and 5 are a perspective view and a side sectional view showing a state in which the slider has moved forward from the state shown in FIGS. 2 and 3;
Figures 6 and 7 are perspective views and side sectional views showing the state in which the slider has been moved back from the state shown in Figures 4 and 5 and the cathode ray tube has been placed on the jacket, and Figure 8 is the same as in Figure 1. Figure 9 is a schematic plan view of Figure 8, and Figure 10 is a partially longitudinal front view showing the cathode ray tube supported in Figure 9. Figure, 1st
Figure 1 and Figure 12 are a perspective view and partially longitudinal front view of a cathode ray tube that has been subjected to explosion-proof treatment, Figure 13 is a perspective view showing the relationship between a conventional lug and a rim band that removes it, and Figure 14.
The figure is a perspective view of conventional slap winding devices 1 to 4. 1.Cathode ray tube, 4.Lug, 6.Receptacle, 7.
Engaging portion, 8... Engaging hole, 30... Lug holding device, 31...
・Base, 32... Mounting branch, 33... Protrusion, 34-i
/1-...Slider, 37...Lug presser, 37a...Presser. December 30, 1980 Invention Name Tadashi Okamoto
History 171 Applicant (Type 11 Company Toshiba '18 Kaisho 61-133532 (8) 11 Kaisho 61-133532 (10) Deaf l

Claims (1)

[Claims] (1) Place the lug, which consists of a mounting part curved along the outer periphery of the corner of the cathode ray tube and an engaging part that is approximately perpendicular to the mounting part and has an engagement hole, in a position facing the four corners of the cathode ray tube. In the lug holding device for cathode ray tubes, a groove having a width approximately equal to the width of the engaging portion of the lug and a depth slightly greater than the thickness of the engaging portion is formed from an oblique side of the tip portion, and A protrusion having a smaller area than the engagement hole is formed on the bottom surface of the groove, and a mounting portion is provided to slidably support the engagement portion of the lug with the engagement hole loosely fitted into the protrusion. a base; a slider that is slidably provided on the base and is driven to move forward and backward relative to the branch; one end is rotatably pivoted on the base and the other end is pivoted; A lug holder, which has a presser part that presses and holds the upper surface of the engaging part of the lug supported on the support part, and is constantly receiving a spring force in a direction in which the presser part presses against the mounting part. A lug holding device for a cathode ray tube.