JPH04134810U - core holder - Google Patents

Abstract

(57) [Summary] [Purpose] The object is to provide a configuration that can simplify the engagement work of engaging core cases with each other in a state where a core is loaded in a core holder, and can improve work efficiency. [Structure] A single engaging claw having a length substantially equal to the longitudinal length of the core case 4 is provided at one engaging end of the core cases 4, 4', and the engagement claw of the other core case 4' is provided with a single engaging claw having a length substantially equal to the longitudinal length of the core case 4. An engaging portion 7 that engages with the engaging claw 6 is provided at the mating end.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention is suitable for core holders used in noise filters that prevent induced noise. It is related to

0002

[Conventional technology]

Recently, induced noise has been generated in the signal lines that interconnect electronic devices, and The negative effect on child devices has become a problem. To prevent such induced noise In recent years, noise filters have been installed on signal lines. This kind of The is filter consists of a pair of split cylindrical cores 18 as shown in FIG. 2(a) and a pair of split cylindrical cores 18 as shown in FIG. ), it is equipped with a core holder that stores the split cylindrical core 18 under pressure. .

0003 Specifically, as shown in FIG. 2(a), each split cylindrical core 18 is Two split cylindrical cores 18 having an extending groove 19 with a semicircular cross section are combined. A circular cylindrical space can be defined on the inner side. This circular cylindrical sky A noise filter can be constructed by inserting and sandwiching a signal line between them. a pair of minutes The core holder that accommodates the split cylindrical core 18 is integrally connected with the hinge piece 12 so that it can be opened and closed. Two cases 11, 11' are connected together, and each case 11, 11' has a longitudinal end. portion 13 and side portions 14 and 15 that cover the side surfaces of each cylindrical core 18, and are perpendicular to the longitudinal direction. The side parts 14 and 15 facing the hinge piece 12 in the direction are respectively engagement sides that can be opened and closed. That is, it forms an engaging end.

0004 As shown in FIG. 2, longitudinally spaced A pair of disposed engaging portions 16 are provided, the other engaging side portion 1 of the case 11' 5 is provided with a pair of engagement claws 17 connected to the engagement portion 16, and each engagement claw 17 is connected to the engagement portion 16. It protrudes from the mating side portion 15 in the vertical direction. Each end wall 13 has a groove in the cylindrical core 18. A window 14 is provided, which corresponds to It is being In this configuration, a pair of cylindrical cores 18 are housed in the cases 11 and 11'. After inserting the signal wire between the grooves 19 of the pair of cylindrical cores 18, the signal wire is engaged with the engaging claw 17. By engaging the part 16, the noise filter can be attached to the signal line. Wear. At this time, the shape of the window 14 provided at the end 13 of each case 11, 11' is By configuring the signal line so that it can be pressed into contact with the signal line, the noise filter can be placed on the signal line stably. can be fixed to.

[0005]

[Problem that the idea aims to solve]

In the conventional core holder described above, the protrusions that cause the cases 11 to engage with each other are The portion 16 and the engaging claw 17 are installed separately at both longitudinal ends of the engaging side portion. death Therefore, when installing the core into the core holder, completely remove the cases 11 and 11'. When performing the engagement work for engagement, each time the engagement portion 16 and the engagement claw 17 are attached. You need to do it twice. For this reason, as the number of noise filters installed increases, As a result, the number of engagement operations increases dramatically, resulting in more trouble for the operator. It was. The purpose of this invention is for noise filters that can be attached to signal lines with one operation. The purpose is to provide a core holder and increase the bonding force to the signal line. A core holder for noise filters that can enhance the noise prevention effect. It is to provide.

[0006]

[Means to solve the problem]

The core holder according to the present invention solves the above-mentioned problems. A pair of cylindrical core pieces 1 that sandwich the signal line along the direction are removable and individually Each cylindrical core piece 1 can be taken out, and each cylindrical core piece 1 can be taken out along the longitudinal direction. It has a pair of core cases 4, 4' that are housed and held in the same direction. The pair of cylindrical core pieces 1 can be held by engaging the engaging ends of the cylindrical core pieces 1 with each other. I can do that. In the present invention, one engagement end of the core cases 4, 4' is substantially connected to the core cases 4, 4'. has a length substantially equal to the longitudinal length of the core case 4, 4' at one engaging end of the core case 4, 4'. The single engaging claw 6 and the engaging portion 7 are provided at the engaging end of the other core case. It is characterized by.

[0007]

【Example】

An embodiment of the present invention will be described with reference to FIGS. (a) and (b). Figure 1(a) shows a pair of cylindrical parts to be housed in the core holder as in Figure 2(a). One of the cores, cylindrical core 1, is shown, and the cylindrical core 1 has a signal line sandwiched inside. A longitudinally extending central groove 2 is provided for this purpose. Also illustrated is a cylindrical core. The outer periphery of 1 has a rectangular shape.

[0008] As shown in Fig. 1(b), a core case housing a pair of cylindrical cores 1 is , comprises two cases 4 and 4' integrally and openably/closably connected by a hinge piece 5. . Each case 4, 4' has a longitudinal end 8 and a side covering the side of each cylindrical core 1. , on the sides of both cylindrical cores 1 facing the hinge piece 5 in the direction perpendicular to the longitudinal direction, Each of them forms an engaging side portion, that is, an engaging end portion that can be opened and closed. One core case 4 An engaging pawl 6 is provided on the engaging side portion of the core case 4 substantially in the longitudinal direction of the core case 4. . The engagement claw 6 defines an engagement space extending in the longitudinal direction on the outside. An engaging portion 7 that fits into the engaging space of the engaging claw 6 is provided on the engaging side of the other case 4'. extends in the longitudinal direction. Moreover, the longitudinal end wall 8 of each core case 4, 4' has a , there is a window having a shape that corresponds to the central groove of the cylindrical core 1 and can hold the signal line. It is provided. In the core holder having the configuration shown, the cases 4 and 4' are A pair of cylindrical cores 1 are housed, and a signal line is inserted between the central groove 2 of the pair of cylindrical cores 18. After soldering, a signal is generated by connecting and fitting the engaging claw 6 and the engaging part 7 once. Can be attached to a line. Attach the noise filter to the signal line in this way can. In order to stably fix the noise filter on the signal line, each case 4, 4' A window is provided at the end 8 of the wire, and the shape of the window is configured so that the signal wire can be pressed into contact with the wire. If so, various window shapes can be adopted.

[0009] Next, the core holder shown in FIG. 1(b) is made of flexible soft resin. It is formed of. In addition, in FIG. 1(a), the longitudinal end of the central groove 2 of the cylindrical core 1 The groove 3 provided in the groove 3 is provided inside the end wall of each core case 4, 4' in FIG. 1(b). The protruding piece 9 is engaged with the protruding piece 9. The groove 3 and the protruding piece 9 connect the pair of cylindrical cores to the core case 4. , 4'. Furthermore, a spring mechanism (not shown) is installed on the inner surface of the core cases 4, 4' located on the back of the core 1. ) may be provided. In this way, by providing a spring mechanism, the pair of cores is always aligned in the direction of the joint surface. It is possible to strengthen the bonding force between the pair of cores by applying force.

0010

[Effect of the idea]

As explained above, the core holder of the present invention engages with a pair of protrusions that fit together. The mating claws are engaged over a length substantially equal to the longitudinal length of the core holder. Therefore, the signal line can be firmly held by one engagement operation. In addition, since the engagement length between the engagement part and the engagement claw is long, a large force is required to lock the core. This can increase the bonding force between the cores and improve the noise prevention effect. Ru.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view showing an embodiment of the core holder of the present invention.

FIG. 2 is an exploded perspective view showing a core holder of the prior art.

[Explanation of symbols]

1 core 2 Central groove 4,4' Core case 5 Hinge piece 6 Engagement claw 7 Engagement part 9 Projecting piece

Claims (1)

[Scope of utility model registration request] [Claim 1] Used for removably holding a pair of cylindrical cores that sandwich a signal line along the longitudinal direction,
It has a pair of holder covers that can be opened and closed mutually and house and hold each cylindrical core in the longitudinal direction, and by engaging the engaging ends of both the holder covers with each other, the pair of holder covers can be opened and closed. In a core holder that holds a cylindrical core, a single engaging portion is provided at one engaging end of the holder cover in parallel with the longitudinal direction, and the longitudinal length of the holder cover is substantially equal to the length. A core holder characterized in that the other holder cover is provided with a single engagement claw that engages with the engagement portion at the engagement end of the other holder cover.