JP2015116116A - Method for manufacturing molded compact, cable resin mold structure, cable with molded compact, and cable with sensor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for manufacturing molded compact, which can reduce manufacturing cost by simplifying an operation steps while securing sealability between the molded compact and a cable, and to provide cable resin mold structure, a cable with a molded compact and a cable with a sensor.SOLUTION: A method for manufacturing a molded compact 11 includes: a fitting step for fitting a core member 2 having a storage part 201 for storing hot melt 5 to a cable 12; a step for arranging the core member 2 in a metal mold 6; an injection step for injecting molten resin 30 into the metal mold 6; and a step for fusing the hot melt 5 molten by heat of the molten resin 30 to the cable 12 and the storage part 201. In the fitting step, first and second divided pieces 21, 22 composing the core member 2 are arranged so as to surround the cable 12 and inflow holes 21a, 22a are formed on the core member 2. In the injection step, the molten resin 30 circulates along the outer periphery of the core member 2 and the molten resin 30 is allowed to flow from the inflow holes 21a, 22a into the storage part 201.

Description

  The present invention relates to a method for producing a molded body, a cable resin mold structure, a cable with a molded body, and a cable with a sensor.

  Conventionally, as a cable resin mold structure, a molded connector in which one end portion in the axial direction of a cable is molded with resin is known (for example, see Patent Document 1).

  The molded connector described in Patent Document 1 includes a terminal fitting having a connecting portion connected to a mating terminal and a crimping portion crimped to the tip of the cable, a portion of the terminal fitting excluding the connecting portion, and a tip of the cable. And a mold resin portion for covering. The mold resin portion includes a main body portion covering the terminal fitting side, a cylindrical portion covering the front end portion of the cable, and a cylindrical protruding portion that protrudes from the cylindrical portion in the cable lead-out direction and is smaller than the outer diameter of the cylindrical portion, Are integrally formed.

  A sealing agent for sealing between the protruding portion and the cable is applied to the outer peripheral surface of the cylindrical protruding portion and the outer peripheral surface of the cable led out from the cylindrical protruding portion. The outer periphery of the sealing agent is covered with a heat-shrinkable tube that has been inserted through a cable in advance. This heat-shrinkable tube shrinks by heating, and the sealing agent is tightened from the outer peripheral side. Thereby, the sealing performance between the mold resin portion and the cable is ensured.

JP 2008-258103 A

  In the molded connector described in Patent Document 1, a molding process for molding the mold resin portion, and a sealing agent application for applying the sealing agent to the outer peripheral surface of the cylindrical protruding portion and the outer peripheral surface of the cable derived from the cylindrical protruding portion In addition to the steps, a tube mounting step for moving the heat-shrinkable tube previously passed through the cable to the mold resin portion side and covering the sealant and a tube heating step for heating the heat-shrinkable tube are required. Therefore, the work is complicated by taking many steps, leading to an increase in manufacturing cost.

  Accordingly, the present invention provides a method for manufacturing a molded body, a cable resin mold structure, and a molded body that can reduce the manufacturing cost by simplifying the work process while ensuring sealing performance with the cable. It is an object to provide a cable with a sensor and a cable with a sensor.

  In order to solve the above-mentioned problems, the present invention provides a method for manufacturing a molded body that covers a part of the cable in the axial direction, and contains hot melt at the end on the lead-out side that leads out the cable. A mounting step of mounting the cylindrical core member formed with the portion on the cable, a disposing step of disposing the core member mounted on the cable in the mold, and injecting a molten resin into the mold An injecting step and a fusing step of fusing the hot melt accommodated in the accommodating portion by the heat of the molten resin and fusing the molten hot melt to the outer peripheral surface of the cable and the inner peripheral surface of the accommodating portion. And a solidifying step of solidifying the molten resin, wherein the mounting step is a step of arranging a plurality of divided pieces constituting the core member so as to surround the cable in a circumferential direction thereof, In the material, an inflow hole for allowing the molten resin to flow into the housing portion from the outer peripheral side of the core member is formed, and in the injection step, the molten resin flows along the outer periphery of the core member, A method for manufacturing a molded body in which the molten resin flows from the inflow hole into the housing portion is provided.

  Further, the present invention is a cable resin mold structure that covers a part of the cable in the axial direction for the purpose of solving the above problem, and a plurality of divided pieces arranged so as to surround the cable in the circumferential direction. A cylindrical core member having an accommodating portion in which hot melt is accommodated in an end portion on the lead-out side that leads out the cable, and an exterior member made of a mold resin that covers the core member, and the core member Is formed with an inflow hole for allowing the molten mold resin to flow into the housing portion from the outer peripheral side of the core member, and the hot melt has one end in the axial direction of the cable extending from the inflow hole. Covered by the mold resin that has flowed in, and the other end is covered by the mold resin that covers the end surface of the outlet that leads the cable out of the housing portion. To provide a cable resin mold structure that.

  In addition, the present invention is provided with a cable having a conductor and a sheath covering the conductor, and a molded body that covers at least an end of the cable, in order to solve the above problems, A cylindrical core member comprising a plurality of divided pieces arranged so as to surround the cable in the circumferential direction thereof, and having an accommodating portion in which hot melt is accommodated at an end portion on the outlet side from which the cable is led out, and An exterior member made of a mold resin covering the core member, and the core member is formed with an inflow hole for allowing the melted mold resin to flow into the housing portion from the outer peripheral side of the core member. The melt is covered at one end in the axial direction of the cable with the mold resin flowing from the inflow hole, and the other end from the housing portion. Wherein providing molded article with a cable covered with a mold resin for closing an end surface of the outlet for leading out the Buru.

  Moreover, the present invention aims to solve the above-described problems, and a molded body that covers a sensor that measures a physical quantity, a cable that is electrically connected to the sensor, and at least an end of the sensor on the cable side. And the molded body is constituted by a plurality of divided pieces arranged so as to surround the cable in the circumferential direction thereof, and a storage portion in which hot melt is stored at an end portion on a lead-out side that leads out the cable And a sheath member made of mold resin that covers the core member, and the molten mold resin is allowed to flow into the housing portion from the outer peripheral side of the core member. An inflow hole is formed for the hot melt so that one end portion in the axial direction of the cable is covered with the mold resin flowing in from the inflow hole. It is to provide the other end the sensor cable with which are covered with a mold resin for closing an end surface of the outlet for leading out the cable from the housing section.

  According to the method of manufacturing a molded body and the cable resin mold structure, the cable with the molded body, and the cable with the sensor according to the present invention, the work process is simplified while securing the sealing property between the cable and the cable. Manufacturing costs can be reduced.

It is a perspective view which shows the external appearance of the sensor module which concerns on embodiment of this invention. An example of the configuration of a sensor module is shown, (a) is a top view and (b) is a side view. It is a perspective view which shows a part of sensor module which abbreviate | omitted the exterior member. (A) is a perspective view which shows a core member, (b) is a perspective view which shows a 2nd division | segmentation piece. FIG. 4 is a sectional view taken along line AA in FIG. 3. (A) is the BB sectional drawing of FIG. 3, (b) is CC sectional view of FIG. 3, (c) is the DD sectional view of FIG. It is explanatory drawing which shows the manufacturing process of the molded object which concerns on embodiment of this invention, (a) shows the state which has arrange | positioned the core member with which the cable was mounted | worn to the metal mold | die, (b)-(d) The state of the molten resin flowing in the mold is shown.

[Embodiment]
The sensor module according to the embodiment of the present invention is mounted on a vehicle, for example, and used as an in-vehicle sensor that measures the rotational speed of a wheel, the rotational angle of a steering wheel, and the like.

(Configuration of sensor module 1)
First, the configuration of the sensor module 1 will be described with reference to FIGS. 1 and 2.

  FIG. 1 is a perspective view showing an appearance of a sensor module 1 according to an embodiment of the present invention. 2A and 2B show one configuration example of the sensor module 1, wherein FIG. 2A is a top view and FIG. 2B is a side view. 1 and 2, the core member 2 and the like disposed inside the exterior member 3 are indicated by broken lines.

  The sensor module 1 includes a sensor 4 (shown in FIG. 2) that measures a physical quantity, a cable 12 that is electrically connected to the sensor 4, and a molded body that covers at least the end portion on the sensor 4 side in the axial direction of the cable 12. 11. This sensor module 1 is an aspect of the cable with a molded body and the cable with a sensor of the present invention.

  The sensor 4 includes a measuring unit 40 on which, for example, a Hall IC that detects magnetism is mounted, and a plurality of (two in this embodiment) lead terminals 41 and 42 provided at one end of the measuring unit 40. ing. The sensor 4 is not limited to measuring magnetism, but may be any sensor that can measure a physical quantity in a state of being covered with the molded body 11, and may be for measuring temperature or vibration, for example.

  The cable 12 includes a first electric wire 121 having a center conductor 121a and an insulator 121b covering the center conductor 121a, and a second electric wire 122 having an insulator 122b covering the center conductor 122a and the center conductor 122a. It is constituted by covering with.

  In the first electric wire 121, the central conductor 121a exposed from the insulator 121b at the tip is connected to one lead terminal 41 of the sensor 4 by, for example, soldering. Similarly, the center conductor 122a exposed from the insulator 122b at the distal end of the second electric wire 122 is connected to the other lead terminal 42 of the sensor 4.

  The molded body 11 includes a cylindrical core member 2 composed of a plurality of (two in the present embodiment) divided pieces arranged so as to surround the cable 12 in the circumferential direction, and a mold that covers the core member 2. And an exterior member 3 made of resin. In the present embodiment, the core member 2 includes a pair of divided pieces (a first divided piece 21 and a second divided piece 22) that are divided in half. The first divided piece 21 and the second divided piece 22 are illustrated in FIG. As shown, the cable 12 is disposed so as to be sandwiched in a direction orthogonal to the axial direction.

  In the present embodiment, the sheath 123 of the cable 12 is made of a resin material such as urethane, and the core member 2 and the exterior member 3 are made of a resin material such as nylon or polybutylene terephthalate (PBT). . In addition, the resin material used for the sheath 123, the core member 2, and the exterior member 3 is not limited to this, and can be appropriately selected depending on the application, and the same resin material can also be used.

(Configuration of core member 2)
Next, the configuration of the core member 2 will be described with reference to FIGS. 3 to 6.

  FIG. 3 is a perspective view showing a part of the sensor module 1 from which the exterior member 3 is omitted. FIG. 4A is a perspective view showing the core member 2, and FIG. 4B is a perspective view showing the second divided piece 22. 5 is a cross-sectional view taken along line AA in FIG. 6A is a cross-sectional view taken along line BB in FIG. 3, FIG. 6B is a cross-sectional view taken along line CC in FIG. 3, and FIG. 6C is a cross-sectional view taken along line DD in FIG. It is.

  The core member 2 has an accommodating portion 201 that accommodates a hot melt 5 made of a thermoplastic plastic such as ethylene vinyl acetate (EVA), for example, at the end on the lead-out side where the cable 12 is led out, and the sensor 4 (see FIG. 2). A holding portion 202 that holds the cable 12 is provided at an end portion on the) side.

  Since the first divided piece 21 and the second divided piece 22 have the same configuration, the second divided piece 22 will be described as an example. As shown in FIG. 4B, the second divided piece 22 integrally has an arc-shaped second housing portion 221 and an arc-shaped second holding portion 222 having an inner diameter smaller than that of the second housing portion 221. doing. In the second divided piece 22, molten resin (molten mold resin) for molding the exterior member 3 is formed in the second accommodating portion 221 at the end of the second accommodating portion 221 on the second holding portion 222 side. An inflow hole 22a for allowing inflow from the outer peripheral side of the two divided pieces is formed.

  Similarly, the first divided piece 21 integrally includes a first accommodating portion 211 and a first holding portion 212, and an inflow hole 21a is formed at an end portion of the first accommodating portion 211 on the first holding portion 212 side. ing. The inflow holes 21a and 22a preferably have a diameter of 1 mm or more. Thereby, the molten resin can be spread to the inside of the first housing part 211 and the inside of the second housing part 221 while the molten resin is wrapped around the entire outer periphery of the cable 12.

  In the present embodiment, one inflow hole 21 a is formed in the first divided piece 21, and one inflow hole 22 a is formed in the second divided piece 22. Two or more inflow holes may be formed, and two or more inflow holes may be formed in the second divided piece 22, or a plurality of inflows may be provided in one of the first divided piece 21 and the second divided piece 22. A hole may be formed.

  As shown in FIG. 4A, a cylindrical accommodating portion 201 is configured by combining the first accommodating portion 211 of the first divided piece 21 and the second accommodating portion 221 of the second divided piece 22. A cylindrical holding portion 202 is configured by combining the first holding portion 212 of the divided piece 21 and the second holding portion 222 of the second divided piece 22. The cable 12 is inserted through the inside of the housing portion 201 and the holding portion 202, and a lead-out port 201 b through which the cable 12 is led out is formed in the housing portion 201.

  As shown in FIG. 6A, in the holding unit 202, the outer peripheral surface 123 a of the cable 12 faces the inner peripheral surface 202 a of the holding unit 202. In FIG. 6A, the outer peripheral surface 123 a of the cable 12 and the inner peripheral surface 202 a of the holding portion 202 are in contact with each other, but between the outer peripheral surface 123 a of the cable 12 and the inner peripheral surface 202 a of the holding portion 202. A gap may be formed.

  As shown in FIG. 6B, the outer peripheral surface 123a of the cable 12 is opposed to the inner peripheral surface 201a of the accommodating portion 201 through the space 201c in the portion where the inflow holes 21a and 22a are formed in the accommodating portion 201. ing. In addition, as shown in FIG. 6C, the outer peripheral surface 123 a of the cable 12 has the hot melt 5 in the portion where the inflow holes 21 a and 22 a are not formed in the accommodating portion 201 (end portion on the outlet port 201 b side). It faces the inner peripheral surface 201a of the accommodating part 201. That is, as shown in FIG. 5, the hot melt 5 extends along the axial direction of the cable 12 from the outlet port 201 b toward the holding unit 202 so as to fill a space 201 c between the cable 12 and the housing unit 201. Contained.

  In the present embodiment, in the radial direction of the cable 12, the thickness of the hot melt 5 is 1.0 mm, the thickness of the housing portion 201 is 0.5 to 1.0 mm, and the thickness of the holding portion 202 is 1.5 to 2.0 mm. It is. The diameter (outer diameter) of the cable 12 is 4.0 to 5.0 mm.

(Method for producing molded body 11)
Next, a method for manufacturing the molded body 11 will be described with reference to FIG.

  FIG. 7 is an explanatory view showing a manufacturing process of the molded body 11 according to the embodiment of the present invention. FIG. 7A shows a state in which the core member 2 mounted on the cable 12 is arranged in the mold 6. 7B to 7D show the state of the molten resin 30 flowing in the mold 6. In FIG. 7, the arrow indicates the direction in which the molten resin 30 flows.

  The manufacturing process of the molded body 11 includes a mounting process for mounting the core member 2 on the cable 12, a placement process for positioning the core member 2 mounted on the cable 12 in the mold 6, and a molten resin in the mold 6. The hot melt 5 accommodated in the accommodating portion 201 is melted by the heat of the molten resin 30, and the molten hot melt 5 is melted in the outer peripheral surface 123 a of the cable 12 and the accommodating portion 201 of the core member 2. It has a fusing process for fusing to the peripheral surface 201a and a solidifying process for solidifying the molten resin 30.

  In the mounting step, the first divided piece 21 and the second divided piece 22 are combined and mounted from the outer peripheral side of the cable 12 so as to surround the cable 12 in the circumferential direction. In the present embodiment, the first divided piece 21 and the second divided piece 22 are combined so that the first divided piece 21 and the second divided piece 22 sandwich the cable 12 in a direction orthogonal to the axial direction. Thereby, the sensor 4 (see FIG. 2) and the end of the cable 12 on the sensor 4 side are accommodated in the core member 2.

  As shown in FIG. 7A, after the core member 2 (the first divided piece 21 and the second divided piece 22) attached to the cable 12 in the arrangement process is arranged in the mold 6, the mold is used in the injection process. The molten resin 30 for molding the exterior member 3 (see FIG. 1) is injected into the inside 6.

  As shown in FIG. 7B, the molten resin 30 injected into the mold 6 flows along the outer periphery of the core member 2 from the sensor 4 side to the outlet port 201b side of the core member 2, The molten resin 30 flows so as to block the end face of the outlet port 201b in the housing part 201. Thereby, the one end part of the cable 12 in the hot melt 5 in the axial direction is covered with the molten resin 30. Thereafter, as shown in FIG. 7C, the molten resin 30 flows into the accommodating portion 201 from the inflow holes 21 a and 22 a, and the other end portion of the hot melt 5 in the axial direction of the cable 12 is covered with the molten resin 30. .

  In the present embodiment, the temperature of the molten resin 30 is about 270 ° C., and the melting point of the hot melt 5 is about 130 ° C. Therefore, when the molten resin 30 is injected into the mold 6 in the injection step, the hot melt 5 starts to be melted by the heat of the molten resin 30. The melted hot melt 5 is fused to the outer peripheral surface 123 a of the cable 12 and the inner peripheral surface 201 a of the housing portion 201 of the core member 2 in the fusion process. That is, the hot melt 5 functions as a seal member between the core member 2 and the cable 12.

  The molten resin 30 injected into the mold 6 is solidified by natural cooling in the solidification step, and the exterior member 3 is molded. Since the molten resin 30 is injected from the opposite side (sensor 4 side) of the cable 6 in the mold 6, the molten resin 30 at a high temperature (about 270 ° C.) is placed on the holding part 202 side of the core member 2. 30 always flows. Accordingly, the molten resin 30 starts to solidify from the end face side of the outlet port 201b in the accommodating portion 201.

  As shown in FIG. 7D, the melted hot melt 5 is pressed in the lead-out direction of the cable 12 under the pressure of the molten resin 30 that has flowed into the housing portion 201 from the inflow holes 21a and 22a. At this time, since the end face side of the outlet 201 b in the housing part 201 is closed by the solidified mold resin, the pressed hot melt 5 does not leak into the mold 6 from the core member 2. The hot melt 5 is fused to the mold resin that flows in from the inflow holes 21 a and 22 a and the mold resin that closes the end surface of the outlet 201 b in the housing portion 201.

  As described above, the exterior member 3 that molds the entire core member 2 is molded, and the sensor 4 and the end of the cable 12 on the sensor 4 side are molded by the molded body 11. In the hot melt 5, one end in the axial direction of the cable 12 (end on the inflow holes 21 a and 22 a side) is covered with the mold resin flowing in from the inflow holes 21 a and 22 a, and the other end (on the outlet 201 b side). ) Is covered with a mold resin that closes the end face of the outlet 201b.

(Operation and effect of the embodiment)
According to the embodiment described above, the following operations and effects can be obtained.

(1) Since the hot melt 5 accommodated in the accommodating portion 201 of the core member 2 is fused to the outer peripheral surface 123a of the cable 12 and the inner peripheral surface 201a of the accommodating portion 201 of the core member 2, the cable 12 and the core member 2 It is possible to ensure a sealing property between the two.

(2) To arrange the first divided piece 21 and the second divided piece 22 constituting the core member 2 so as to surround the cable 12 in the circumferential direction, the cable 12 is inserted from the end of the cable like a heat-shrinkable tube. There is no need to move it to the desired position. Moreover, since the hot melt 5 can be melted by the heat of the molten resin 30 when the exterior member 3 is molded, it is not necessary to provide a separate heating step for melting the hot melt 5. Therefore, the work process can be simplified and the manufacturing cost can be reduced.

(3) Since the molten resin 30 flows into the accommodating portion 201 from the inflow holes 21a and 22a, heat is directly transferred to the hot melt 5 accommodated in the accommodating portion 201, and the hot melt 5 is melted in a shorter time. It is possible to make it.

(4) In the injection step, the molten resin 30 that has flowed along the outer periphery of the core member 2 flows so as to block the end surface of the outlet port 201b in the housing portion 201, and therefore, the core member starts from the end surface of the outlet port 201b in the core member 2. It is possible to prevent water or the like from entering between 2 and the exterior member 3.

(Summary of embodiment)
Next, the technical idea grasped from the embodiment described above will be described with reference to the reference numerals in the embodiment. However, the reference numerals and the like in the following description are not intended to limit the constituent elements in the claims to the members and the like specifically shown in the embodiments.

[1] A method for producing a molded body (11) that covers a part of the cable (12) in the axial direction, in which the hot melt (5) is accommodated at the end on the lead-out side where the cable (12) is led out. A mounting step of mounting the cylindrical core member (2) formed with the portion (201) on the cable (12), and the core member (2) mounted on the cable (12) in the mold (6) An injection step for injecting the molten resin (30) into the mold (6), and a hot melt (5) accommodated in the accommodating portion (201) is melted by the heat of the molten resin (30), A fusion process in which the molten hot melt (5) is fused to the outer peripheral surface (123a) of the cable (12) and the inner peripheral surface (201a) of the housing portion (201), and a solidification process in which the molten resin (30) is solidified. And mounting process, the cable (12) around it Is a step of arranging a plurality of divided pieces (first and second divided pieces 21 and 22) constituting the core member (2) so as to surround the core member (2), and molten resin (30) is applied to the core member (2). Inflow holes (21a, 22a) for allowing the core member (2) to flow into the accommodating portion (201) from the outer peripheral side of the core member (2) are formed. In the injection step, the molten resin (30) is formed along the outer periphery of the core member (2). Of the molded product (11) in which the molten resin (30) flows into the housing part (201) from the inflow holes (21a, 22a).

[2] In the injecting step, the molten resin (30) flowing along the outer periphery of the core member (2) closes the end face of the outlet (201b) through which the cable (12) is led out from the housing part (201). The method for producing a molded article (11) according to [1], which flows.

[3] The core member (2) is composed of a pair of divided pieces (first and second divided pieces 21, 22) that are divided in half, and the inflow holes (21a, 22a) are the first and second divided pieces ( 21. The method for producing a molded body (11) according to [1] or [2], which is formed in each of 21 and 22).

[4] A cable resin mold structure covering a part of the cable (12) in the axial direction, and a plurality of divided pieces (first and second divided pieces) arranged so as to surround the cable (12) in the circumferential direction. A cylindrical core member (2) having an accommodating portion (201) in which a hot melt (5) is accommodated at an end portion on the lead-out side that leads out the cable (12). 2) and an exterior member (3) made of a mold resin, and the core member (2) contains molten mold resin (molten resin 30) in the housing portion (201) on the outer peripheral side of the core member (2). Inflow holes (21 a, 22 a) for inflow from the inflow holes are formed, and the hot melt (5) has one end in the axial direction of the cable (12) covered with the mold resin flowing in from the inflow holes (21 a, 22 a). The other end is Cable resin mold structure which is covered with a mold resin for closing an end face of the guide exit volume unit from (201) to derive a cable (12) (201b).

[5] A cable (12) having a conductor (121a, 122a) and a sheath (123) covering the conductor (121a, 122a), and a molded body (11) covering at least the end of the cable (12). The molded body (11) is composed of a plurality of divided pieces (first and second divided pieces 21 and 22) arranged so as to surround the cable (12) in the circumferential direction, and the cable (12) is led out. A cylindrical core member (2) having an accommodating portion (201) in which a hot melt (5) is accommodated at an end on the lead-out side, and an exterior member (3) made of mold resin covering the core member (2) The core member (2) is formed with inflow holes (21a, 22a) for allowing the molten mold resin (molten resin 30) to flow into the housing part (201) from the outer peripheral side of the core member (2). Being and hot In the belt (5), one end in the axial direction of the cable (12) is covered with the mold resin flowing in from the inflow holes (21a, 22a), and the other end is connected from the housing (201) to the cable (12). A cable with a molded body that is covered with a mold resin that closes the end face of the outlet (201b) that leads out the lead.

[6] A sensor (4) for measuring a physical quantity, a cable (12) electrically connected to the sensor (4), and a molded body that covers at least an end of the cable (12) on the sensor (4) side ( 11), and the molded body (11) is composed of a plurality of divided pieces (first and second divided pieces 21 and 22) arranged so as to surround the cable (12) in the circumferential direction, A cylindrical core member (2) having an accommodating portion (201) in which a hot melt (5) is accommodated at an end on the deriving side for deriving (12), and an exterior made of mold resin covering the core member (2) The core member (2) has an inflow hole (21a) for allowing molten mold resin (molten resin 30) to flow into the housing part (201) from the outer peripheral side of the core member (2). 22a) is formed and hot melt In (5), one end of the cable (12) in the axial direction is covered with the mold resin flowing in from the inflow holes (21a, 22a), and the other end is connected to the cable (12) from the housing part (201). A sensor-equipped cable covered with a mold resin that closes an end face of the outlet (201b) to be led out.

  While the embodiments of the present invention have been described above, the embodiments described above do not limit the invention according to the claims. In addition, it should be noted that not all the combinations of features described in the embodiments are essential to the means for solving the problems of the invention.

  The present invention can be appropriately modified and implemented without departing from the spirit of the present invention. For example, in the above embodiment, the cable 12 is formed by covering the first and second electric wires 121 and 122 having the central conductors 121a and 122a and the insulators 121b and 122b with the sheath 123. For example, a cable made of a conductor and a sheath may be used without having an insulator or the like, or a cable formed by covering three or more electric wires with a sheath. That is, it is possible to apply a cable according to the application of the sensor module 1.

  Moreover, in the said embodiment, although the sensor module 1 was demonstrated as one aspect | mode of the cable with a molded object, it is not restricted to this, For example, it is possible to apply a cable with a molded object to a connector etc.

  Moreover, in the said embodiment, although the core member 2 was cylindrical shape, it is not restricted to this, For example, square tube shape may be sufficient.

1. Sensor module (cable with molded body, cable with sensor)
2 ... Core member 3 ... Exterior member 4 ... Sensor 5 ... Hot melt 6 ... Mold 11 ... Molded body 12 ... Cables 21, 22 ... First and second divided pieces (a pair of divided pieces)
21a, 22a ... Inflow hole 30 ... Molten resin 121a, 122a ... Central conductor 123 ... Sheath 123a ... Outer peripheral surface 201 ... Housing part 201a ... Inner peripheral surface 201b ... Outlet port

Claims (6)

A method of manufacturing a molded body covering a part of the cable in the axial direction,
A mounting step of mounting a cylindrical core member formed with an accommodating portion for accommodating hot melt on the end portion on the lead-out side that leads out the cable, to the cable;
An arrangement step of arranging the core member attached to the cable in a mold;
An injection step of injecting a molten resin into the mold;
A fusing step of fusing the hot melt contained in the accommodating portion with heat of the molten resin, and fusing the molten hot melt to the outer peripheral surface of the cable and the inner peripheral surface of the accommodating portion;
A solidifying step for solidifying the molten resin,
The mounting step is a step of arranging a plurality of divided pieces constituting the core member so as to surround the cable in the circumferential direction thereof.
The core member is formed with an inflow hole for allowing the molten resin to flow into the housing portion from the outer peripheral side of the core member,
In the injection step, the molten resin flows along the outer periphery of the core member, and the molten resin flows into the housing portion from the inflow hole. In the injecting step, the molten resin that has flowed along the outer periphery of the core member flows so as to close an end surface of the outlet that leads the cable out of the housing portion.
The manufacturing method of the molded object of Claim 1. The core member is composed of a pair of divided pieces divided in half,
The inflow holes are respectively formed in the pair of divided pieces.
The manufacturing method of the molded object of Claim 1 or 2. A cable resin mold structure covering a part of the cable in the axial direction,
A cylindrical core member comprising a plurality of divided pieces arranged so as to surround the cable in the circumferential direction thereof, and having an accommodating portion in which hot melt is accommodated at an end portion on the lead-out side that leads out the cable;
An exterior member made of a mold resin covering the core member,
The core member is formed with an inflow hole for allowing the molten mold resin to flow into the housing portion from the outer peripheral side of the core member,
The hot melt has one end in the axial direction of the cable covered with the mold resin flowing in from the inflow hole, and the other end closes the end face of the outlet that leads the cable out of the housing. Cable resin mold structure covered with mold resin. A cable having a conductor and a sheath covering the conductor;
A molded body covering at least the end of the cable,
The molded body is
A cylindrical core member comprising a plurality of divided pieces arranged so as to surround the cable in the circumferential direction thereof, and having an accommodating portion in which hot melt is accommodated at an end portion on the lead-out side that leads out the cable;
An exterior member made of mold resin covering the core member;
The core member is formed with an inflow hole for allowing the molten mold resin to flow into the housing portion from the outer peripheral side of the core member,
The hot melt has one end in the axial direction of the cable covered with the mold resin flowing in from the inflow hole, and the other end closes the end face of the outlet that leads the cable out of the housing. A cable with a molded body covered with mold resin. A sensor for measuring physical quantities;
A cable electrically connected to the sensor;
A molded body covering at least the sensor-side end of the cable;
The molded body is
A cylindrical core member comprising a plurality of divided pieces arranged so as to surround the cable in the circumferential direction thereof, and having an accommodating portion in which hot melt is accommodated at an end portion on the lead-out side that leads out the cable;
An exterior member made of mold resin covering the core member;
The core member is formed with an inflow hole for allowing the molten mold resin to flow into the housing portion from the outer peripheral side of the core member,
The hot melt has one end in the axial direction of the cable covered with the mold resin flowing in from the inflow hole, and the other end closes the end face of the outlet that leads the cable out of the housing. Cable with sensor covered with mold resin.