JPH0537453Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a core holder for preventing induced noise, which uses a split cylindrical core attached to a signal line connecting electronic devices.

[Conventional technology]

2. Description of the Related Art Conventionally, signal lines connecting devices such as electronic devices are covered with a cylindrical magnetic core to prevent induction noise caused by discharge of static electricity charged in the human body. A split cylindrical core is usually used in conjunction with a signal line extending from a connector device attached to an electronic device. For example, two core pieces each having a semi-circular cross-section and a central groove in the flat center are put together, and a signal line is passed through the center hole formed by the core pieces. The combined state of the cores was maintained by tightening them using narrow clamping metal fittings.

[Problem that the invention attempts to solve]

In the conventional tightening fittings as described above, when the claws at the tips of the tightening fittings are hooked to the ridges of the two divided cores and fixed, it is necessary to spread the arms of the tightening fittings. Therefore, there were problems in that not only was it difficult to attach the tightening fittings, but additional means were required to attach the core tightened with the tightening fittings to the mounting board for signal lines and the like. Therefore, the purpose of the present invention is to be able to combine and hold a pair of cases into which a split core is inserted by snapping them in with one touch, and to prevent the pair of cases from coming off easily. The purpose is to provide a core holder that can be protected.

[Means for solving problems]

According to the present invention, two cores each having a groove having a semicircular cross section penetrating in the length direction in the center and hook grooves formed at both ends of the groove are combined with the grooves facing each other. A holder for a core for preventing induced noise of a signal line, in which a signal line connecting between electronic devices is passed through the formed hole, and the two cores are tightened and held, and the holder has a space for accommodating the core. and includes a pair of resin cases that are open on one side, and a semicircular notch is formed at the opening side edge of the opposing side walls of the pair of cases, and the bottom of the notch is provided with a hook groove of the core. Hook claws are provided at corresponding positions and extend toward the space, and one of the pair of cases has an assembly arm having a hook hole, and the other case has an assembly arm on both sides of the assembly arm. At least one of the pair of cases is provided with a hook portion including a guard portion formed along the line and a hook protrusion formed in the guard portion and fitted into the hook hole, and at least one of the pair of cases is provided with a hook portion that is fitted into the hole of the fixing member. A holder for a core for preventing induced noise is obtained, which is characterized by having a plurality of fixing claws.

〔Example〕

An embodiment of the present invention will be described with reference to FIG.
The holder of this embodiment has a pair of core cases 1 and 2.
including. The core cases 1, 2 are connected to each other by flexible connections or hinges 21, 22. Each core case 1 or 2 is molded from resin and has a space in which a core 10 shown in FIG. 2 is accommodated. The longitudinal side walls 3 and 4 of each case 1 and 2 are provided with semicircular notches 3' and 4' having a diameter approximately equal to the hole diameter formed when the two cores are combined,
At the periphery of the notch, there is a hook 5 that fits into a hook groove 11 formed on the edge of the groove 12 of the core 10 so that each core is fixed in each space when the core 10 is stored in the case. It is provided extending in the direction of the spaces 1 and 2. Further, it is preferable that a push spring is provided at the bottom of the cases 1 and 2 to elastically bias the housed core 10 toward the hook portion 5. The core 10 is constructed by first fitting one of the hook grooves 11 at both ends under the hook 5, and then using the elasticity of the resin case to push and expand the other side wall.
Hook the hook on 1.

After storing the core 10, the pair of cases 1 and 2 are assembled by facing each other while bending the connecting portions 21 and 22, thereby combining the cores 10 and 10 contained in the respective cases. In this case,
By fitting the signal wire into the groove 12, the signal wire passes through a hole (not shown) formed by the two grooves 12 when the cores are combined.

As a means for holding the substantially two-part core cases 1 and 2 that have been combined in this manner, a pair of hook portions 9 of one case 1 and a pair of assembly arms 8 of the other case 2 are provided. As shown, the assembly arm 8 is provided with a hook hole 8' in the center. The entire arm 8 is made of resin molded into one body with the case 2,
Elastically flexible. Further, it is preferable to form an inclined portion at the tip of the arm 8 so that a hooking hole 8' can be snapped into a hooking projection described later with a single touch.

On the other hand, the hook portion 9 into which the assembly arm 8 is fitted and hooked to secure the cases 1 and 2 together includes a hook protrusion 13 on which the hook hole 8' of the assembly arm 8 is hooked;
It includes a guard part 14 surrounding the guard part 14.
In this way, a groove 15 into which the assembly arm 8 is fitted is formed between the hook projection 13 and the guard portion 14. With this configuration, when one case 2 having the assembly arm 8 is assembled to the other case 1, the assembly arm 8, due to its own flexibility, climbs over the catch protrusion 13 and snaps into the groove 15. The guard portion 14 protects the assembly arm 8 from easily coming off the hooking protrusion 13 due to external factors such as vibrations applied to the case.

On one side of the outer wall of the case 1, there is a fixing claw 16, which is also molded integrally with the case and has a hook at the tip, so that the entire holder can be fixed to a fixing member, such as a certain type of base, with one touch. There are several. The hooks of these fixing claws 16 are hooked onto the side edge of the rear hole inserted into the hole of the mating base to fix the case. Note that these fixing claws 16 may be provided on the other case 2, or may be provided on both cases 1 and 2, respectively.

[Effect of idea]

According to the core holder of the present invention, it is possible to elastically position and hold the two-split core in each of the two-split cases forming the holder so that the storage position thereof does not move, by simply inserting the core into the case. The pair of cases can be simply assembled and held by simply snapping the assembly arm into the hooking protrusion inside the guard part using the guard part as a guide. Since it is formed around the hook protrusion along the side of the assembly arm, it is possible to protect the assembly arm having the hook hole from easily coming off against impacts to the holder. Furthermore, in the present invention, when a fixing claw is provided on one side of the case,
The core holder can be easily fixed to the fixing member by snapping the fixing claw into the hole of the predetermined fixing member.

[Brief explanation of the drawing]

Fig. 1 is an overhead view showing the holder according to the embodiment of the present invention in an open state, and Fig. 2 is a perspective view showing only one of the two divided cores to be housed in the case shown in Fig. 1. be. In the figure, 1, 2...case, 3, 4...side wall,
3', 4'...notch, 5...hanging claw, 6...pressing spring, 8...assembly arm, 8'...hanging hole, 9...
Hook portion, 13... Hook protrusion, 14... Guard portion,
16...Fixed claw.

Claims (1)

[Claims for Utility Model Registration] 1. Having a groove with a semicircular cross section that penetrates in the length direction in the center and hook grooves formed at both ends of the groove. 2.
Induced noise of a signal line in which two cores are combined with their grooves facing each other, a signal line connecting electronic devices is passed through the hole formed by the groove, and the two cores are tightened and held. The holder for the prevention core includes a pair of resin cases having a space for storing the core and opening on one side, and a semicircular notch is formed at the opening side edge of the opposing side walls of the pair of cases. Further, a hook is provided at the bottom of the notch at a position corresponding to the hook groove of the core and extends toward the space, and one of the pair of cases has a hook. The assembly arm is provided in the other case with a hook portion having a guard portion formed along both sides of the assembly arm and a hook protrusion formed within the guard portion and fitted into the hook hole. A holder with a core for preventing induced noise. 2 In at least one of the pair of cases,
Utility model registration claim 1, characterized in that a plurality of fixing claws are provided that fit into the holes of the fixing member.
Holder for the core for preventing induced noise as described in Section 2.