JP2012179304A - Buckle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a buckle which is capable of easily performing assembling work of a reed switch to a female part.SOLUTION: The buckle includes a storage part 50 capable of storing a reed switch 40, part of a lead wire 41, an LED 42, and a resistor 43 in a female part 20 from the outside of a body part 21, and the storage part 50 is closed by a cover 55, thereby, the reed switch 40 is assembled from the outside of the female part 20, and the productivity is improved.

Description

  The present invention relates to a buckle provided with a reed switch used as a power switch of an airbag device for a human body that is used while worn on a human body, for example.

  Conventionally, as an airbag device for a human body that absorbs an impact on a human body when falling from a high place such as a construction site, for example, an airbag provided so as to correspond to a predetermined part of the human body and detection of the fall of the human body It is known that an air bag is inflated when a human body is detected by the sensor (see, for example, Patent Document 1 or 2).

  The airbag device for a human body is used by wearing a clothing-like mounting body provided with an airbag on a human body, and the mounting body is provided with a power switch that activates a control unit of the sensor. This power switch consists of a reed switch provided on the buckle of the body belt of the wearing body, and when the male part and female part of the buckle are joined when wearing the wearing body, the magnet attached to the tip of the male part is attached to the female part. The reed switch is operated by the magnetic force of the magnet in the vicinity of the reed switch arranged inside.

JP 2003-265638 A Japanese Patent Laid-Open No. 2005-87322

  However, in the buckle, since the female part is formed of synthetic resin and then the reed switch is assembled from the insertion opening of the female part to the back of the female part, the assembly work of the reed switch to the female part is complicated. Therefore, there was a problem that productivity was lowered.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a buckle capable of easily assembling a reed switch to a female portion.

  In order to achieve the above object, the present invention includes a male part and a female part that are detachably coupled to each other, a magnet provided on the male part, and a reed switch provided on the female part. In a buckle in which the male part magnet is close to the female part reed switch and the reed switch is operated by the magnetic force of the magnet, the reed switch can be housed from the outside of the female part, And a lid for closing the storage portion.

  Accordingly, the reed switch is housed in the housing portion from the outside of the female portion, and the housing portion is closed by the lid, whereby the reed switch is assembled to the female portion.

  According to the present invention, since the reed switch can be assembled from the outside of the female portion, the reed switch can be easily assembled to the female portion, and productivity can be improved.

The top view of the buckle which shows one Embodiment of this invention Top view of male part Partially exploded plan view of female part Front side perspective view of male part Back side perspective view of male part Exploded perspective view of female part Exploded perspective view of female part Partially exploded side sectional view of female part Side sectional view of female part Schematic diagram showing circuit configuration

  1 to 10 show an embodiment of the present invention. The buckle shown in the figure is used for various devices in which a power switch is turned on and off by attaching and detaching a male part and a female part attached to a pair of belts 1 and 2 such as an air bag device for a human body, for example. .

  The buckle of the present embodiment accommodates a male part 10 and a female part 20 that are detachably coupled to each other, a magnet 30 provided on the male part 10, a reed switch 40 provided on the female part 20, and a reed switch 40. And a storage unit 50 that performs processing.

  The male part 10 is made of a synthetic resin molded product and has a main body part 11 to which one belt 1 is connected. A protrusion 12 is provided on one end side of the main body 11, and a pair of lock pieces 13 are provided on both sides in the width direction of the main body 11. A pair of horizontally long belt insertion holes 11 a and 11 b extending in the width direction are provided on the other end side of the main body portion 11, and the belt insertion holes 11 a and 11 b are arranged at intervals in the longitudinal direction of the main body portion 11. Yes. The protruding portion 12 is formed so as to extend from the center in the width direction of the main body portion 11 in the longitudinal direction of the main body portion 11, and a fixing portion 12 a for fixing the magnet 30 is provided on the back side of the tip portion. Each lock piece 13 includes an elastic piece portion 13a that can be elastically deformed in the width direction of the main body portion 11 and an operation portion 13b formed at the tip of each elastic piece portion 13a. When pressed inward in the width direction, each operation portion 13b is displaced inward in the width direction of the main body portion 11 by elastic elastic deformation of the elastic piece portion 13a. In this case, a concave portion 13c that can lock the fingertip is provided on the side surface of the operation portion 13b.

  The female part 20 is made of a synthetic resin molded product and has a main body part 21 to which the other belt 2 is connected. The main body portion 21 is formed in a hollow shape having an open end, and the opening portion forms an insertion port 21a into which the protruding portion 12 of the male portion 10 and each lock piece 13 are inserted. A pair of cutout portions 21b are provided on both sides in the width direction of the main body portion 21, and each cutout portion 21b is opened so that the operation portion 13b of the lock piece 13 is exposed to the outside. In this case, the male part 10 and the female part 20 are locked to each other by the operation parts 13b engaging with the edges of the notch parts 21b. Further, a laterally long belt insertion hole 21 c extending in the width direction of the main body 21 is provided on the other end side of the main body 21.

  The magnet 30 is made of a thin cylindrical permanent magnet, and is attached to the fixed portion 12a of the male portion 10 from the back side of the main body portion 11 as shown in FIG.

  The reed switch 40 has a conducting wire part 40 a at both ends, and includes a known device that conducts between the conducting wire parts 40 a by the magnetic force of the magnet 30 when the magnet 30 is brought close to the reed switch 40.

  The accommodating part 50 is provided on the other end side of the main body part 21 of the female part 20 and accommodates a part of the lead wire 41, the LED 42 and the resistor 43 in addition to the reed switch 40. The housing part 50 has an open front surface of the main body part 21, and a first recessed part 51 for positioning the reed switch 40 and a second recessed part 52 for positioning a part of the lead wire 41 are disposed therein. In addition, a third recess 53 for positioning the LED 42 and a fourth recess 54 for positioning the resistor 43 are provided. The first recess 51 positions the reed switch 40 at the center in the width direction of the storage unit 50 by positioning the reed switch 40 so that each conductor portion 40a extends toward both sides of the storage unit 50 in the width direction. . The second concave portion 52 bends and positions the lead wire 41, locks the protrusion 52 a located at the center of the bent portion of the lead wire 41 with the lead wire 41, and connects the lead wire 41 to the center in the width direction of the storage portion 50. It is arranged to extend from the outside. The third recessed portion 53 positions the LED 42 so as to face one side in the width direction of the housing portion 50, and a hole 21 d is provided on one side surface of the main body portion 21 to expose the tip portion (light emitting portion) of the LED 42 to the outside. ing. Moreover, the 3rd recessed part 53 hold | maintains a pair of conducting wire part 42a extended from LED42 between the three protrusions 53a. The fourth concave portion 54 positions the resistor 43 by holding one conductor portion 43 a of the resistor 43 between the protrusion 54 a and the inner surface of the storage portion 50.

  The storage unit 50 has a lid 55 that closes the open surface thereof, and the lid 55 is formed in a plate shape so as to cover the open surface of the storage unit 50. A pair of widthwise first protrusions 55 a is provided on the inner surface of the lid 55, and the lid 55 is attached to the storage portion 50 by press-fitting each first protrusion 55 a into a hole 50 a provided in the storage portion 50. It is like that. In addition, a pair of second protrusions 55b in the width direction are provided on the inner surface of the lid 55, and when the lid 55 is attached to the storage portion 50, each conductor portion 40a of the reed switch 40 is held by each second projection 55b. It is like that.

  The reed switch 40, the lead wire 41, the LED 42, and the resistor 43 are accommodated by soldering after being accommodated in the accommodating portion 50 from the outside as shown in FIGS. 6 and 7, and constitute the circuit shown in FIG. That is, the lead wire 41 includes a power input line 41a, a power output line 41b, and an LED control input line 41c. The lead switch 40, the power input line 41a, and the power output line 41b are connected in series, and the LED 42, resistor 43, LED A control input line 41c and a power output line 41b are connected in series.

  In the buckle configured as described above, one belt 1 is connected to the male portion 10 by inserting one belt 1 through each belt insertion hole 11a, 11b of the male portion 10. Further, the other belt 2 is connected to the female portion 20 by inserting the other belt 2 into the belt insertion hole 21 c of the female portion 20. At this time, as shown in FIG. 9, the other belt 2 is connected so as to wind the other end of the female portion 20, and the storage portion 50 closed by the lid 50 is covered by the belt 2.

  Moreover, in the said buckle, when the protrusion part 12 of the male part 10 and each lock piece 13 are inserted in the main-body part 21 of the female part 20, the operation part 13b of each lock piece 13 will become the inner edge of the insertion port 21a of the female part 20 Each lock piece 13 is inserted into the main body 21 while being elastically deformed toward the inner side in the width direction of the main body 21. Subsequently, when the operation portion 13b of each lock piece 13 reaches the notch portion 21b of the female portion 20, each lock piece 13 is restored toward the outer side in the width direction of the main body portion 21, and each operation portion 13b is notched. While being exposed to the outside from 21b, each operation part 13b latches to the edge part of the notch part 21b, and the male part 10 and the female part 20 are locked. At that time, as shown in FIG. 1, the magnet 30 attached to the protruding portion 12 of the male portion 10 comes close to the reed switch 40 in the storage portion 50 of the female portion 20, and the reed switch 40 is turned on by the magnetic force of the magnet 30. It becomes. As a result, the power input line 41a and the power output line 41b of the lead wire 41 are energized, and the device (not shown) connected to the lead wire 41 is turned on. In addition, the LED control input line 41c and the power output line 41b are energized, the LED 42 is turned on, and the power-on state is displayed externally.

  According to the buckle of the present embodiment, the female portion 20 is provided with the storage portion 50 that can store the reed switch 40, a part of the lead wire 41, the LED 42 and the resistor 43 from the outside of the main body portion 21. Since it is closed by the lid 55, the reed switch 40 can be easily assembled from the outside of the female portion 20, and productivity can be improved.

  In addition, since the first to fourth recesses 51, 52, 53, 54 for positioning the reed switch 40, a part of the lead wire 41, the LED 42, and the resistor 43 are provided in the storage unit 50, the reed switch 40, etc. These components can be directly assembled to the female portion 20 without being mounted on the circuit board, and the structure can be simplified.

  In this case, since the second recess 52 for the lead wire 41 is formed so that the lead wire 41 extends outward from the center in the width direction of the female portion 20, the lead wire 41 extending to the outside is formed on the belt 2. Can be placed inside. Thereby, the lead wire 41 does not come into contact with an operator or an external article, which is extremely advantageous in protecting the lead wire 41.

  Further, since the storage portion 50 closed by the lid 55 is covered with the belt 2 inserted into the belt insertion hole 21c of the female portion 20, the storage portion 50 can be protected by the belt 2 and the lid 55 Since it is covered with the belt 2, there is an advantage that the lid 55 is not easily detached.

  DESCRIPTION OF SYMBOLS 1, 2 ... Belt, 10 ... Male part, 20 ... Female part, 21c ... Belt insertion hole, 30 ... Magnet, 40 ... Reed switch, 41 ... Lead wire, 50 ... Storage part, 51 ... 1st recessed part, 52 ... 2nd recessed part, 53 ... 3rd recessed part, 54 ... 4th recessed part, 55 ... lid | cover.

Claims (5)

A male part and a female part that are detachably coupled to each other, a magnet provided on the male part, and a reed switch provided on the female part. When the male part and the female part are coupled, the male magnet is In the buckle that is close to the reed switch of the part and operates the reed switch by the magnetic force of the magnet,
A storage part capable of storing the reed switch from the outside of the female part;
A buckle comprising a lid for closing the storage portion. The buckle according to claim 1, wherein a recess for positioning the reed switch is provided in the storage portion. The buckle according to claim 1 or 2, wherein a recess for positioning a part of the lead wire connected to the reed switch is provided in the storage portion. 4. The buckle according to claim 3, wherein the lead wire recess is formed so that the lead wire extends from the center in the width direction of the female portion to the outside. The buckle according to claim 1, 2, 3, or 4, wherein a belt insertion hole is provided in the female portion, and the storage portion closed by the lid is covered with a belt inserted into the belt insertion hole.

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