JPH04233134A - Clip for coupling inner shield and frame - Google Patents

Abstract

PURPOSE: To enhance coupling force and make handling by a worker easy. CONSTITUTION: A first elastic bent part 1 is formed at the peak by bending the central part of a belt-shaped metal body in a V shape, a second bent part 2 is formed by bending inward from the specified position each side extended on both side of the first bent part 1, a third bent part 3 and a shoulder part 4 are formed by bending outward again at the specified intervals from the second bent part 2, a fourth elastic bent part 5 and a holding part 6 are formed by bending continuously extended each side about 180 deg. from the specified position so that the tip of the holding part 6 is positioned adjacently to the upper part of the shoulder 4.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clip for connecting components, and more particularly to a clip for connecting an inner shield and a frame of a cathode ray tube.

0002

2. Description of the Related Art In general, a cathode ray tube, particularly a color cathode ray tube using a shadow mask method, has a frame for supporting a shadow mask disposed inside the face panel. An inner shield is installed to prevent the effects of

[0003] Since the inner shield and the frame have a structure that cannot be integrally molded, they are manufactured separately and then assembled together by a worker in the assembly process.

[0004] Clips have conventionally been used to connect the inner shield and the frame, and the clips used here must meet the following conditions.

[0005] First, the fastening force of the clip is strong, vibration does not occur between the inner shield and the frame even when influenced by the surroundings, and the clip is easy to produce. It is necessary that the work of connecting the clip to the inner shield and frame be simple.

The conventionally used clip is shown in FIG.
As shown in the figure, there is an elasticity imparting part A which is bent into a substantially V-shape and has elasticity in itself, a shoulder S extending line-symmetrically from this elasticity imparting part A, and a shoulder S extending in parallel from this shoulder S. It is composed of a handle B which is extended so as to be.

According to the conventional clip configured as described above, the inner shield I is stacked on the frame F, and the elasticity imparting portion A of the clip is inserted and penetrated through the mating coupling hole H, thereby forming the frame F. and the inner shield I can be integrally combined.

[0008] Examples of other conventional techniques related to the above-mentioned conventional clip include Japanese Patent Application Laid-Open No. 55-154041 and Japanese Patent Publication No. 62-13787.

FIG. 9A is a cross-sectional view showing an example of the former, in which V
Both sides of the tip portion 11 forming a letter shape are curved inward from a bending point 12 in the middle to form a neck 13, and are extended from each neck 13 in a direction to be spaced apart so as to be located in the same plane, and further , is configured by forming a rear end portion 15 that is bent from a bending point 14 located outward from the bending point 12 and then extended.

FIG. 9B is a sectional view showing the latter example, in which V
Both sides of the letter-shaped tip 21 are curved inward from a bending point 22 in the middle to form a neck 23, and are extended in a curved manner in a direction away from each neck 23 to form respective extension parts. By bending and extending the rear end portion 25 from the bending point 24, the position of the bending point 24 is brought closer to the distal end portion 21 side and the strength of the elastic force possessed by the neck 23 is increased.
Also, the width from the neck 23 to the bending point 24 is
It is made wider than the side width to ensure the stability of the bond.

[0011]

[Problems to be Solved by the Invention] Although these types of clips have the advantage of being easy to produce and easy to connect, they do not provide a strong fastening force between the frame and the inner shield. structure, and
A disadvantage is that the clip cannot be easily handled by the operator.

[0012] That is, the frame and the inner shield are joined together by being sandwiched in a recessed groove formed on the outside of the neck of the clip, so that the horizontal fastening force due to the elastic force of the tip and the neck are combined. At the same time, the neck receives vertical fastening force due to elastic force, but its dimensions are limited depending on the thickness of the frame and inner shield, so here,
The disadvantage is that the elastic force exerted is weaker at the tip and the reliability of the vertical fastening force is poor.

Furthermore, in the unattached state, the rear end of the clip is expanded to the maximum extent by the elastic force generated from the tip, and the operator manually opens the rear end that has been expanded to the maximum. You have to narrow it down while picking it. However, in reality, the size of the clip is so small that it cannot be easily picked up by hand, and the clip often pops out due to its own elastic force, resulting in work delays and parts loss. is the reality.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an improved inner shield and frame coupling clip that has excellent fastening force and can be easily handled by an operator.

[0015]

[Means for Solving the Problem] In order to achieve the above-mentioned object, the inner shield and frame coupling clip according to claim 1 of the present invention is provided by bending the middle part of a band-shaped metal body into a V-shape, and forming a groove at the apex of the clip. A first elastic bent part is formed, each side extending on both sides of the first elastic bent part is bent inward from a predetermined position to form a first bent part, and from this first bent part Bend outward again at a predetermined interval to form a second bent part and shoulder, and bend each continuously extended side approximately 180 degrees from a predetermined position to form a second elastic bend. and a gripping portion, and the tip of the gripping portion is integrally formed so as to be positioned above and adjacent to the shoulder.

Further, in the inner shield and frame coupling clip according to the second aspect, the middle part of the band-shaped metal body is bent into a V shape, and a first elastic bent part is formed at the apex of the middle part.
Each side extending on both sides of the elastic bent part is bent inward from a predetermined position to form a first bent part, and then bent outward again at a predetermined interval from the first bent part. A second bent part and a shoulder are formed, and each continuously extended side is bent approximately 180 degrees from a predetermined position to form a second elastic bent part and a grip part, and the tip of the grip part is It is characterized in that it is bent outward to integrally form a third elastic bent part and a crimping part located adjacently above the shoulder.

Furthermore, in the inner shield and frame coupling clip according to claim 3, the middle part of the band-shaped metal body is bent into a V-shape to form a first elastic bent part at the apex thereof, and the first elastic bent part is bent into a V-shape. Each side extending on both sides of the bent part is bent inward from a predetermined position to form a first bent part, and then bent outward again at a predetermined interval from the first bent part to form a first bent part. In addition to forming two bent parts and a shoulder, each continuously extended side is bent approximately 180 degrees from a predetermined position to form a grip part joined to each side, and the tip of this grip part is It is characterized in that a third elastic bending section bent outward and a crimping section located adjacently above the shoulder are integrally formed.

Furthermore, the inner shield and frame coupling clip according to claim 4 is the clip according to any one of claims 1 to 3, in which a single leg and a double leg are provided at the tip of the gripping portion. It is characterized by having one of these attached.

[0019]

[Operation] According to the inner shield and frame coupling clip of the present invention having the above-described structure, a large vertical pressure can be applied to the surface of the inner shield,
Furthermore, by widening the portion that comes into contact with the operator's fingers, it is possible to eliminate the risk of the inner shield popping out when picking it up by hand, and it is possible to stably connect the inner shield to the frame.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be explained below with reference to embodiments shown in the drawings.

FIG. 1 is a perspective view showing a first embodiment of the clip according to the present invention.

As shown in FIG. 1, the approximately central portion of the strip-shaped metal body in the longitudinal direction is bent into a V shape of approximately 60 to 90 degrees, and a first elastic bent portion 1 is formed at the apex of the V-shape. .

[0023] Each side extending from the first elastic bent portion 1 to both sides is approximately 90 to 90 mm inward at a predetermined position.
A pair of first bent portions 2 are bent at an angle of 135°.
is formed. Each side extending inward from each first bent portion 2 is approximately 90 mm apart at a predetermined interval.
The second bent portion 3 is formed by being bent outward at an angle of ~135°. Then, an inclined shoulder 4 is formed between each first bent part 2 and second bent part 3.

Each side extending from each of the second bent portions 3 is bent outward again at an angle of about 180° at a predetermined position to form a second elastic bent portion 5. A gripping portion 6 formed by each side extending from each second elastic bending portion 5 is formed above the corresponding shoulder 4.

The clip of the present invention constructed as described above is used in the same manner as the conventional clip described above.

FIG. 2 is a longitudinal sectional view showing an example of how the clip shown in FIG. 1 is used.

In FIG. 2, the first elastic bent portion 1 of the clip is inserted and penetrated from the inner shield I side into the joining hole H between the frame F and the inner shield I, and the first bent portion 2 and the second bent portion 3 supports the bottom surface of the frame F, and together with this, the tip of the grip portion 6 presses the surface of the inner shield I.

As a result, frame F and inner shield I
receives the elastic force generated from the first elastic bent portion 1 and the first bent portion 2 of the clip in the horizontal direction via the shoulder 4, and also receives the elastic force generated from the first elastic bent portion 1 and the first bent portion 2 of the clip in the horizontal direction.
The elastic force generated from the elastic bending portion 5 is received in the vertical direction via the tip of the gripping portion 6. In this way, the frame F and the inner shield I receive elastic forces from the clip in the horizontal and vertical directions, and are firmly fastened together.

In the clip of this embodiment, the elastic force in the vertical direction is set by the second bending part 3 and the second elastic bending part 5, and the direction in which this elastic force is applied is also through the tip of the gripping part 6. Since it forms an angle of about 90° to the surface of the inner shield I, it has the advantage of being able to exert more than three times the fastening force compared to conventional clips.

[0030] The gripping part 6 is formed by bending each side extending from the second bent part 3 outward at an angle of approximately 180°, so that it does not come into contact with the operator's hand. As a result, there is no risk that the clip will fly out when the operator picks it up with his or her fingers.

FIG. 3 is a perspective view showing a second embodiment of the clip according to the present invention, and in this figure, the same components as in FIG. 1 are designated by the same reference numerals.

In this embodiment, the gripping portion 6 of the clip
The tip portion is bent outward at a gentle angle to form a third elastic bent portion 7 and a crimp portion 8.

According to such a configuration, there is an advantage that the elastic force applied to the surface of the inner shield I is further strengthened by the presence of the third elastic bending portion 7, and the operator can also
When picking, the crimping part 8 comes into contact with the operator's thumb, which has the advantage of making it even easier to handle.

FIG. 4 shows a third embodiment of the clip according to the present invention, and in this embodiment as well, the same parts as in the embodiment of FIG. 1 are given the same reference numerals.

In this embodiment, approximately the central portion in the longitudinal direction of the strip-shaped metal body is bent into a V shape of approximately 60 to 90 degrees, and the first elastic bent portion 1 is formed at the apex of the bent portion. Each side extending on both sides of the first elastic bent part 1 is bent inward at a predetermined position at an angle of about 90 to 135 degrees to form a first bent part 2. Said first
Each side extending inward from the bent portion 2 is bent outward again at a predetermined interval at an angle of about 90 to 135° to form a second bent portion 3. and,
An inclined shoulder 4 is formed between each first bent part 2 and second bent part 3. Each side extending from each of the second bent portions 3 is bent outward again at a predetermined position at an angle of approximately 180° to form a second elastic bent portion 5. By the way, this second elastic bending portion 5 is
The grip part 6 is formed by being completely bent so as to join with each side extending from each of the second bent parts 3 so that the grip part 6 does not itself have elastic force, and the tip of the grip part 6 is The third elastic bent portion 7 and the crimp portion 8 are integrally formed by being bent outward.

According to such a configuration, as is clear from FIG. 5, the shoulder 4 receives the elastic force of the first elastic bending portion 1, while the crimp portion 8 receives the elastic force of the second elastic bending portion 3. Third
It is subjected to the elastic force of the elastic bending portion 7.

Furthermore, the clip of this embodiment exhibits the most stable state in its usage as shown in FIG.

That is, when the clip is inserted into the coupling hole H, the shoulder 4 applies a horizontal force on the bottom surface of the frame F due to the elastic force of the first elastic bending part 1, while the inner shield I The crimping part 8 on the distal end side of the grip part 6 is in pressure contact with the surface of the holding part 6 so as to apply vertical force by the second bending part 3 and the third elastic bending part 7. According to this embodiment, when handling the clip itself, the gripping part 6 is completely bent so as to join with each side extending from each second bending part 3, so that each of the above-mentioned Unlike the example, it does not have elastic force itself, so there is no risk of it popping out elastically in the hand, making it possible to work more efficiently, and also having the advantage of reducing loss of parts. have

Furthermore, the clip of each of the above embodiments of the present invention can stably connect the frame F and the inner shield I regardless of the shape of the connecting hole H formed in the frame F and the inner shield I. I can do it. More specifically, even if the conventional rectangular coupling hole H is transformed into a circular shape, a good coupling effect can be obtained, and in this case, there is no need to match the inserting direction of the clip, which further improves productivity. be able to.

[0040] Furthermore, the gripping portion of the clip according to the present invention includes:
It can also be modified as follows.

FIG. 7A is a partially enlarged view showing a modification related to the gripping part 6, in which the tip of the gripping part 6 has a
A pointed bipod 9 is formed.

When this double leg 9 contacts the surface of the inner shield I, it becomes a point contact in which the elastic force generated by the second bending part 3 and the second elastic bending part 5 is concentrated only at two points. Therefore, there is no fear that the tip of the gripping part 6 will slide from the surface of the inner shield I.

FIG. 7B is a partially enlarged view showing another modification related to the gripping part 6, in which a pointed single leg (unipod) 10 is formed at the tip of the gripping part 6.

The advantages obtained by applying this single leg 10 are the same as those of the above-mentioned double leg 9, and these double legs 9 and single leg 10 have the same advantages as those of the above-mentioned embodiments. Can be easily applied.

Note that the present invention is not limited to the embodiments described above, and various changes can be made as necessary.

[0046]

As explained above, according to the clip of the present invention, the vertical pressure applied to the surface of the inner shield is improved, and through this improved structure, the operator's hand is Since the contact area is increased, it is possible to stably connect the inner shield to the frame, and it also reduces the loss of the clip due to it flying off during handling. This improves work efficiency and prevents waste of unnecessary parts.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a first embodiment of a clip according to the present invention.

[Fig. 2] A vertical cross-sectional view showing an example of how the clip shown in Fig. 1 is used.

[Figure 3
] A perspective view showing a second embodiment of the clip according to the present invention.

FIG. 4 is a perspective view showing a third embodiment of the clip according to the present invention.

[Figure 5] Front view of the clip in Figure 4

[Fig. 6] A vertical cross-sectional view showing how the clip shown in Fig. 5 is used.

[Fig. 7] A and B are partially enlarged views showing modified examples of the gripping part of the clip shown in Fig. 1, respectively.

FIG. 8 is an exploded perspective view showing an example of a common means for coupling between the inner shield and the frame.

[Figure 9] A, B
are longitudinal cross-sectional views showing how conventional clips are used.

[Explanation of symbols]

1 First elastic bending part 2 First bending part 3 Second bending part 4 Shoulder 5 Second elastic bending part 6 Gripping part 7 Third elastic bending part 8 Crimp part F Frame I Inner shield

Claims (4)

[Claims] Claim 1: A middle part of a band-shaped metal body is bent into a V-shape, a first elastic bent part (1) is formed at the apex thereof, and the first elastic bent part (1) is extended on both sides. Each side is bent inward from a predetermined position to form a first bent part (2), and then bent outward again at a predetermined interval from this first bent part (2) to form a first bent part (2). A second elastic bent portion (5) is formed by bending each continuously extended side approximately 180° from a predetermined position.
) and a grip part (6), and the tip of the grip part (6) is integrally formed so as to be positioned above and adjacent to the shoulder (4). 2. A first elastic bent part (1) is formed at the apex by bending the intermediate part of the band-shaped metal body into a V shape, and the first elastic bent part (1) is extended on both sides of the first elastic bent part (1). Each side is bent inward from a predetermined position to form a first bent part (2), and then bent outward again at a predetermined distance from this first bent part (1) to form a second bent part (2). A bent portion (3) and a shoulder (4) are formed, and each continuously extended side is bent approximately 180° from a predetermined position to form a second elastic bent portion (5).
) and a gripping part (6), and the tip of the gripping part (6) is bent outward to form a third elastic bending part (7) and a crimp part located adjacently above the shoulder (4). (8) A clip for connecting an inner shield and a frame, characterized in that they are integrally formed. 3. A first elastic bent part (1) is formed at the apex of the middle part of the band-shaped metal body by bending it into a V shape, and the first elastic bent part (1) is extended on both sides of the first elastic bent part (1). Each side is bent inward from a predetermined position to form a first bent part (2), and then bent outward again at a predetermined distance from this first bent part (2) to form a second bent part (2). A bent part (3) and a shoulder (4) are formed, and each continuously extended side is bent approximately 180 degrees from a predetermined position to form a grip part (6) that is joined to each side. The tip of this gripping part (6) is bent outward to integrally form a third elastic bent part (7) and a crimping part (8) located adjacently above the shoulder (4). A clip for connecting the inner shield and frame. 4. The inner shield according to claim 1, wherein either a single leg or a double leg is attached to the tip of the gripping part (6). Clip for joining frames.