JP2010078034A - Fixture - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fixture without requiring to replace a fixture body, even if a diameter of a columnar member is different, while preventing dispersion in fastening force when fastening the fixture body. <P>SOLUTION: This fixture 1 has the fixture body 50 and a substantially U-shaped fixing band 10 fixed to the fixture body 50, and fixes electronic equipment 5 to the columnar member 30 by sandwiching the columnar member 30 by these. The fixing band 10 has a first flange 12 formed on one end side of the fixing band 10, a first abutting part 12b, a screw hole 12c, and a projection part 14a formed on the other end 14 of the fixing band 10. The fixture body 50 has a second abutting part 59 abutting on the columnar member 30, a screw elongate hole 52b formed in a position opposed to the screw hole 12c, second flange parts 52, 54 and 56 projected in a position opposed to the projection part 14a, and a cutout part 58 for inserting the projection part 14a. The cutout part has hook-shaped parts 58a and 58b having an expanded width and hooking the projection part 14a. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a fixture for fixing a casing such as an electronic device to a cylindrical member.

  Conventionally, for example, in order to fix a housing of an electronic device or the like to a cylindrical member, for example, a substantially U-shaped band member or a substantially U-shaped bolt having the same diameter as the cylindrical member, A fixture having a fixture body disposed on the body side is used. For example, when a substantially U-shaped band member is used, the casing is provided with a fixture body, the columnar member abuts the fixture body, and one side and the other side of the band member are opposed to each other. A cylindrical member is sandwiched. And these sides engage with the fixture main body, so that the band member fixes the casing to the columnar member via the fixture main body. The engagement between the band member and the fixture main body is performed by tightening the band member to the fixture main body with a nut or the like, for example.

  For example, Patent Document 1 discloses a premise warning zone monitoring system that can automatically warn a person who has entered an alert zone around a dangerous zone on the premise.

In the premises warning zone monitoring system, for example, the microwave moving body intrusion monitoring apparatus is the above-described casing, and the column to which the microwave moving body intrusion monitoring apparatus is fixed is the above-described cylindrical member.
JP 2006-101263 A

  However, when the microwave mobile body intrusion monitoring device is fixed to the cylindrical member by the substantially U-shaped band member, the tightening force of the nut or the like on the band member described above varies depending on the skill of the operator. End up. As a result, the balance of the tightening forces of the nuts on both sides of the one side and the other side of the band member is lost, and the microwave moving body intrusion monitoring device and the columnar member are loosely fixed. Further, tightening both sides of the band member with the nut causes deformation of the cylindrical member and the fixture main body depending on the skill of the operator.

  When cylindrical members having different diameters are used, it is necessary to replace the fixture main body in accordance with the diameter of the cylindrical member. Therefore, it takes time to replace the fixture main body.

  Therefore, in view of the above circumstances, an object of the present invention is to provide a fixing device that prevents variations in tightening force when tightening the fixing device main body and does not require replacement of the fixing device main body even if the diameter of the columnar member is different. To do.

  In order to achieve the object, the present invention includes a fixture main body and a substantially U-shaped band member fixed to the fixture main body, and a cylindrical member is sandwiched between the fixture main body and the band member. The electronic device is fixed to the columnar member, and the band member is formed on one end side of the band member, the flange portion is formed on the flange portion, and is in contact with the fixing device main body. 1 abutment portion, a screw hole formed in the first abutment portion, and a protrusion formed at the other end of the band member, and the fixture body is attached to the columnar member A second abutting portion that abuts, a screw long hole formed at a position facing the screw hole, a second flange portion projecting at a position facing the projection, and the second flange And a notch portion into which the protruding portion is inserted, Serial cutout portion is widened, the notch provides a fixture, characterized in that has a plurality of hook-shaped portion in which the protrusion is inserted into the notch being caught.

  In order to achieve the object of the present invention, the substantially U-shaped band member sandwiches the cylindrical member, and from the opening side of the substantially U-shaped fixture body attached to the housing, A fixing tool that fixes the casing to the columnar member by the fixing body and the band member by engaging and fixing with the fixing body through a tip. A first plane that is one of the U-shaped surfaces and a second plane that is the other of the substantially U-shaped surfaces facing the first plane, and the first plane and the first plane A substantially T-shaped cutout portion penetrating in a thickness direction with respect to the two planes, the cutout portion being one side of a substantially T-shape, and from the longitudinal axis side of the first plane Bent in a substantially Γ shape toward the opening side of the fixture body in the width direction of the first plane The first hook-shaped portion is substantially one side of the T-shape, and the first hook-shaped portion is symmetrically arranged in the longitudinal direction of the first plane with the other side of the approximate T-shape as the center. A second hook-shaped portion that is bent in a substantially Γ shape toward the opening side of the fixture main body in the width direction of the first plane from the longitudinal direction side of the first plane; And is disposed along the width direction of the first plane between the first hook-shaped portion and the second hook-shaped portion, and the first hook-shaped portion, An opening portion connected to the second hook-shaped portion and opening toward the opening side of the fixture body, and the band member includes the first plane and the band member. A fixing portion formed at one end of the band member for fixing to a third surface connected to the second plane, and a thickness method of the first plane and the second plane The other end side of the band member protrudes in the width direction of the band member and engages with either the first hook-like part or the second hook-like part through the opening. And an engaging portion formed on the fixing member.

  In order to achieve the object of the present invention, the first plane and the second plane have a substantially U-shaped contact surface for contacting the cylindrical member, and the notch portion. The fixing device according to the above, wherein the fixing portion is disposed between the fixing portion and a fixing point for fixing to the third surface.

  ADVANTAGE OF THE INVENTION According to this invention, the dispersion | variation in the fastening force at the time of fastening a fixing tool main body can be prevented, and the fixing tool which does not need replacement | exchange of a fixing tool main body can be provided even if the diameter of a cylindrical member differs.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The embodiment will be described with reference to FIGS. 1A to 1C, FIGS. 2A to 2C, and FIG. In addition, illustration of the housing | casing 5 is abbreviate | omitted for simplicity other than FIG. 1A and FIG. 2A.
As shown in FIGS. 1A and 2A, a fixing band 10 which is a substantially U-shaped band member sandwiches a cylindrical member 30 and, for example, a housing 5 such as the above-described microwave mobile body intrusion monitoring apparatus or electronic device. Is engaged and fixed to a substantially U-shaped fixture body 50 attached to the. As a result, the housing 5 is fixed to the cylindrical member 30 via the fixture main body 50 and the fixing band 10.

  More specifically, the fixing band 10 engages with the fixing device main body 50 from the opening side of the fixing device main body 50 through the front ends (the one end 12 and the other end 14) of the fixing band 10.

  Thus, the fixture 1 includes the fixture main body 50 and the substantially U-shaped fixing band 10 fixed to the fixture main body 50, and the cylindrical member 30 is formed by the fixture main body 50 and the fixing band 10. The housing 5 such as the electronic device described above is fixed to the cylindrical member 30 by sandwiching. That is, the fixture 1 fixes the casing 5 to the columnar member 30 by the fixing band 10 and the fixture main body 50. Such a fixing band 10 and the fixture main body 50 are, for example, the fixture 1 for a monitoring device.

  The monitoring device that is the casing 5 described above is used in a local warning zone management system that can warn an intruder when an intruder is in a warning zone provided around a dangerous zone on the campus. Such a casing 5 has a weight of about several hundred g to about several kg, for example.

  The fixture main body 50 has a substantially U-shape (concave shape) when the fixture main body 50 is viewed in plan from the width direction. The fixture main body 50 is disposed on one side of the plane 52 and the plane 52 in the width direction of the fixture main body 50, and is a plane 54 that is one of the substantially U-shaped opposing surfaces, and the fixture main body 50. It is disposed on the other end side of the flat surface 52 in the width direction, and has a flat surface 56 that is the other of the opposed surfaces of the substantially U shape.

  The plane 52, the plane 54, and the plane 56 are integral, and the plane 54 and the plane 56 are opposed to each other. The flat surface 52, the flat surface 54, and the flat surface 56, which are such a fixture main body 50, are second flange portions that are provided so as to project at positions that face a protrusion portion 14a described later.

  On the flat surface 52, for example, a screw hole 52 a with which a mounting member 70 such as a screw is engaged is formed on the one end 52 c side in the longitudinal axis direction of the fixture main body 50. When the attachment member 70 is engaged with the screw hole 52 a and the housing 5, the fixture main body 50 is attached to the housing 5. That is, the fixture main body 50 is detachably attached to the housing 5 by the attachment member 70.

  2A, two cutout portions 52b cut out toward the screw hole 52a are formed on the other end 52d side in the longitudinal axis direction of the fixture body 50. As shown in FIG.

The notch 52b is a screw long hole formed at a position facing a screw hole 12c described later.

  The notches 52b are arranged in parallel in the width direction of the fixture body 50, and are separated by a desired interval in the width direction of the fixture body 50. The notch 52b is formed away from the screw hole 52a as desired in the longitudinal axis direction of the fixture main body 50. When the attachment member 70 is engaged with the notch 52b and a screw hole 12c described later, the fixing band 10 is engaged and fixed to the fixture main body 50. At this time, the notch portion 52b is an adjustment portion for adjusting a fixing position (a position of a fixing point described later) of the fixing portion 12a in the longitudinal axis direction of the fixture main body 50. The fixing band 10 is detachably attached to the fixture main body 50 by an attachment member 70.

Since the plane 54 and the plane 56 have the same shape, the plane 54 will be described.
The flat surface 54 is provided with a substantially T-shaped cutout portion 58 penetrating in the thickness direction of the flat surface 54 (the width direction of the fixture main body 50). The notch 58 is disposed between the screw hole 52 a and the notch 52 b in the longitudinal axis direction of the fixture main body 50. That is, the notch 58 is formed in the planes 54 and 56 in the second flange portion, respectively. A protrusion 14a, which will be described later, is inserted into the notch 58.

  The substantially T-shaped cutout portion 58 is one side of a substantially T-shape, and is substantially from the longitudinal axis side of the flat surface 54 (fixing device main body 50) toward the opening side of the fixing device main body 50 in the width direction of the flat surface 54. One end 58a, which is a first bowl-shaped portion bent in a Γ shape, and one side of a substantially T shape, and the one end 58a is in the longitudinal axis direction of the flat surface 54 around the other side of the substantially T shape (opening portion 58c). And the other end 58b, which is a second hook-like portion bent in a substantially Γ shape toward the opening side of the fixture body 50 in the width direction of the plane 54 from the longitudinal axis side of the plane 54. , Which is the other side of the substantially T-shape, is disposed along the width direction of the flat surface 54 between the one end 58a and the other end 58b, and is connected to the one end 58a and the other end 58b. And an opening 58c that opens toward the side.

  The one end 58a and the other end 58b penetrate in the thickness direction of the flat surface 54, and become a hooking portion (hook-like portion) on which a projection 14a described later is hooked. The one end 58a has a semicircular arc portion 581a where the protrusion 14a is hooked. The other end 58b also has an arc portion 581b similar to the arc portion 581a.

  The distance between the one end 58a and the other end 58b is such that the diameter of the cylindrical member 30, the size of the contact surface 59 described later, the position of the contact surface 59, the size of the notch 52b, and the arrangement of the notch 52b. It is set as desired depending on the position. The one end 58a is disposed closer to the screw hole 52a in the longitudinal axis direction of the fixture main body 50 than the other end 58b.

  The opening 58 c penetrates in the thickness direction of the flat surface 54, and opens (opens) toward the opening side of the fixture main body 50 in the width direction of the flat surface 54.

  Thus, the notch 58 is formed in a substantially T shape by the opening 58c, the one end 58a, and the other end 58b, and is formed in a substantially U shape at the one end 58a and the other end 58b.

  The substantially T-shaped notch 58 is connected to the U-shaped portion composed of one end 58 a and the other end 58 b that are bent into a substantially Γ shape, and is connected to the U-shaped portion, along the width direction of the plane 54. It has the opening part 58c arrange | positioned and opened to the opening side direction of the fixing tool main body 50. As shown in FIG.

  In other words, as shown in FIG. 1B, the notch 58 is widened from the opening 58c toward the one end 58a and the other end 58b, and the notch 58 is inserted into the notch 58. It has hook-shaped parts 58a and 58b on which the protruding part 14a is caught.

  The notch 58 is formed in a substantially U shape by one end 58a and the other end 58b, and has an opening 58c disposed along the width direction of the plane 54 between the one end 58a and the other end 58b. You may do it. In this case, the one end 58a, the other end 58b, and the opening 58c communicate with each other on the housing 5 side.

  The cutout portion 58 disposed on the flat surface 54 and the cutout portion 58 disposed on the flat surface 56 are disposed on the same straight line in the width direction of the fixture main body 50.

As shown in FIG. 1A to FIG. 1C and FIG. 2A to FIG. 2C, a protrusion 14a, which will be described later, engages with one end 58a and the other end 58b through an opening 58c.
As shown in FIGS. 1A to 1C, for example, when the diameter of the columnar member 30 is approximately 60.5 mm, for example, the protrusion 14a is engaged with the one end 58a.
As shown in FIGS. 2A to 2C, for example, when the diameter of the cylindrical member 30 is approximately 38 mm, for example, the protruding portion 14a is engaged with the other end 58b.

  In this way, the protrusion 14 a engages either the one end 58 a or the other end 58 b which is a bowl-shaped portion in accordance with the diameter of the cylindrical member 30, so that the fixing band 10 attaches the housing 5 to the cylindrical member 30. Fix it.

  On the flat surface 54, a substantially U-shaped contact surface (second contact surface) 59 that contacts the cylindrical member 30 is disposed between the notch 58 and the notch 52b. The contact surface 59 is recessed toward the housing 5 side.

  As shown in FIG. 3, the fixing band 10 has a substantially U shape, and is formed of, for example, a SUS material. The fixing band 10 has a desired length corresponding to the diameter of the cylindrical member 30 as a length from one end 12 to the other end 14.

  The fixing band 10 includes a fixing portion 12 a formed at one end 12 for fixing the fixing band 10 to the flat surface 52, and the longitudinal direction of the cylindrical member 30 (the width direction of the fixing band 10, Projecting portion 14a which is an engaging portion (convex portion) formed on the other end 14 side so as to project in the width direction) and engage with either one end 58a or the other end 58b through the opening 58c. have.

The fixed portion 12 a is one end 12 that is bent so as to have a substantially Γ shape (concave shape) when viewed from the longitudinal axis side of the cylindrical member 30. The one end 12 including the fixing portion 12 a is a first flange portion formed on the one end 12 side of the fixing band 10.
When the diameter of the cylindrical member 30 is approximately 60.5 mm, for example, as shown in FIGS. 1A to 1C, the one end 12 has a substantially U-shaped inner side (the other end 14 side, as shown in FIGS. 1A and 1B). It is bent toward the cylindrical member 30 side.
In addition, when the diameter of the cylindrical member 30 is approximately 38 mm, for example, as shown in FIGS. 2A to 2C, the one end 12 is bent toward the outside of the substantially U shape as shown in FIGS. 2A and 2C.
As described above, the one end 12 has a substantially Γ shape, but the direction in which the one end 12 is bent according to the diameter of the cylindrical member 30 is different.

  An attachment member 70 made of, for example, a screw or a nut is engaged with the flat surface 12b of the one end 12 included in the fixing portion 12a in a direction perpendicular to the longitudinal axis direction of the cylindrical member 30 and perpendicular to the flat surface 52. For example, two screw holes 12c are formed. Each screw hole 12c is formed in the longitudinal axis direction of the cylindrical member 30 (the width direction of the fixing band 10) at a desired interval that is the same interval as the cutout portion 52b.

  In other words, the flat surface 12b is a first contact portion that is formed on the first flange portion (one end 12 including the fixing portion 12a) and contacts the other end 52d of the flat surface 52 of the fixture main body 50. The screw hole 12c is a screw hole formed in the first contact portion.

  When the attachment member 70 is engaged with the screw hole 12 c and the notch 52 b, the fixing band 10 is attached to the fixture main body 50. As described above, the fixing portion 12 a serves as a fixing point for fixing the fixing band 10 to the flat surface 52 at the one end 12.

Further, as shown in FIGS. 1A, 1C, 2A, and 2C, the protrusion 14a is engaged with either one of the one end 58a and the other end 58b in the longitudinal axis direction (the fixing band 10). In the width direction) projecting from one end 58a and the other end 58b. More specifically, for example, as shown in FIGS. 1A and 2A, when the protrusion 14a is engaged with one of the one end 58a and the other end 58b, the fixing band 10 is formed as shown in FIGS. 1C and 2C. The protrusion 14 a has such a length that the fixing band 10 does not fall out of the fixture main body 50 even if it moves in the width direction of the fixture main body 50.
Further, the protrusion 14 a is disposed on the one end 12 side by a desired distance from the other end 14. Therefore, a step 14b is formed on the other end 14 by a protrusion 14a. The stepped portion 14b prevents the fixing band 10 together with the protruding portion 14a from shifting in the width direction of the fixture body 50 (falling down in the width direction). Further, when the protruding portion 14a passes through the opening 58c and engages either the one end 58a or the other end 58b, the stepped portion 14b is connected to the other end 14 including the protruding portion 14a together with the other end 14 including the protruding portion 14a. It becomes a slide surface for moving the longitudinal direction.

Next, the operation method of this embodiment will be described.
The cylindrical member 30 contacts the contact surface 59. The fixing band 10 is in close contact with the cylindrical member 30 on the inner peripheral surface side. When the cylindrical member 30 has a diameter of approximately 60.5 mm, the protrusion 14a engages with the one end 58a through the opening 58c, as shown in FIGS. 1A to 1C. When the diameter of the cylindrical member 30 is approximately 38 mm, as shown in FIGS. 2A to 2C, the protrusion 14a engages with the other end 58b through the opening 58c.

  At this time, the protrusion 14 a prevents the fixing band 10 from falling off the fixing body 50 in the width direction of the fixing body 50 by the length of the protrusion 14 a in the width direction of the fixing band 10. Further, the other end 14 is slid by the projection 14a and the step 14b in the longitudinal direction of the fixture main body 50 by the projection 14a and the step 14b, so that the projection 14a is formed between the one end 58a and the other end 58b. Engage with either.

  Next, when the attachment member 70 is engaged with the screw hole 12 c and the notch 52 b, the fixing band 10 is fixed to the fixture main body 50 while supporting the columnar member 30. At this time, the fixing position of the fixing portion 12a is adjusted by the cutout portion 52b along the longitudinal axis direction of the fixture main body 50 according to the size of the diameter of the cylindrical member 30 and the like.

  Thereafter, when the attachment member 70 is engaged with the screw hole 52 a and the housing 5, the housing 5 is attached to the fixture main body 50 that is engaged with the fixing band 10 that supports the columnar member 30. . As a result, the housing 5 is fixed to the cylindrical member 30 by the fixture main body 50 and the fixing band 10.

  Thus, in the present embodiment, for example, one end 58a and the other end 58b are disposed corresponding to the diameter of the cylindrical member 30, and the protrusion 14a is engaged with either the one end 58a or the other end 58b. Even if the diameter of the cylindrical member 30 is different, the casing 5 can be fixed to the cylindrical member 30 without replacing the fixture main body 50. For this reason, in this embodiment, the effort which replaces the fixing tool main body 50 can be prevented.

  In the present embodiment, the fixing member main body 50 can be fastened to the fixing band 10 by the attachment member 70 only on the one end 12 side which is one side of the fixing band 10. As a result, since tightening is performed on only one side, variation in tightening force that occurs when tightening is performed on both sides can be prevented, and the housing 5 can be firmly fixed to the column member 30. The both sides indicate, for example, one end 12 side and the other end 14 side.

  Moreover, in this embodiment, since it clamps only on one side, the deformation | transformation of the cylindrical member 30 and the fixing tool main body 50 which arises when it clamps on both sides can be prevented.

  Moreover, in this embodiment, since the one end 58a, the other end 58b, and the notch part 52b are arrange | positioned, it can be used for the two types of cylindrical members 30 from which a diameter differs. Therefore, in this embodiment, after the cylindrical member 30 is replaced, it is only necessary to engage the protruding portion 14a with one of the one end 58a and the other end 58b. Therefore, the work time for replacing the fixture main body 50 is shortened. Can do.

  Further, in the present embodiment, the position of the fixing point can be adjusted along the longitudinal axis direction of the fixture main body 50 according to the diameter of the cylindrical member 30 by the notch 52b. Therefore, in this embodiment, when fixing the housing | casing 5 to the cylindrical member 30, a fixed width | variety can be given, without replacing the fixing tool main body 50. FIG.

  Further, in this embodiment, by bending the one end 12, the distance between the screw hole 52 a that is a fixing point between the fixture main body 50 and the housing 5 and the one end 12 can be shortened. 5 can be more firmly fixed. That is, this embodiment can maintain the strength for fixing the housing 5 to the columnar member 30.

The direction of the cylindrical member 30 may be the vertical direction or the horizontal direction.
In the present embodiment, the number of the notches 52b need not be limited.

  The order of attachment of the fixing band 10, the fixture main body 50, the housing 5, and the columnar member 30 is not limited to the above. For example, the fixing band 10 sandwiching the column member 30 may be engaged with the fixture main body 50 in a state where the fixture main body 50 and the housing 5 are fixed in advance.

  Moreover, in this embodiment, the housing | casing 5 does not need to be limited to a microwave mobile body penetration | invasion monitoring apparatus, For example, an opposing interruption | blocking type | mold line sensor may be sufficient. In this case, the fixture 1 is fixed to the cylindrical member 30 by the fixing band 10 and the fixture main body 50 so that the pair of opposed cutoff line sensors face each other (facing).

  As described above, the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. Further, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the embodiment.

FIG. 1A is a perspective view showing a state in which the fixing band is engaged and fixed to a fixture that is in contact with a cylindrical member having a diameter of approximately 60.5 mm. FIG. 1B is a top view of FIG. 1A. FIG. 1C is a side view in the vicinity of one end showing a state in which the protrusion is engaged with one end in FIG. 1A. FIG. 2A is a perspective view showing a state in which the fixing band is engaged and fixed to a fixture that is in contact with a cylindrical member having a diameter of about 38 mm. FIG. 2B is a top view of FIG. 2A. FIG. 2C is a side view in the vicinity of one end showing a state in which the protrusion is engaged with the other end in FIG. 2A. FIG. 3 is a perspective view of the fixing band shown in FIG. 1A.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Fixing tool, 5 ... Housing | casing (electronic device), 10 ... Fixing band (band member), 12 ... One end (1st flange part), 12a ... Fixing part (1st flange part), 12b ... Plane (1st contact part), 12c ... screw hole, 14 ... other end, 14a ... projection part, 14b ... step part, 30 ... cylindrical member, 50 ... fixture main body, 52 ... plane, 52a ... screw hole, 52b ... notch (screw long hole), 52c ... one end, 52d ... other end, 54, 56 ... plane, 58 ... notch, 58a ... one end, 58b ... other end, 58c ... opening, 581a, 581b ... arc Part 59, abutting surface (second abutting part), 70 ... attachment member.

Claims (1)

A fixture main body and a substantially U-shaped band member fixed to the fixture main body, and fixing the electronic device to the column member by sandwiching the column member between the fixture main body and the band member. A fixture,
The band member is
A flange formed on one end side of the band member;
A first contact portion formed on the flange portion and contacting the fixture body;
A screw hole formed in the first contact portion;
A protrusion formed on the other end of the band member;
Have
The fixture body is
A second contact portion that contacts the cylindrical member;
A screw long hole formed at a position facing the screw hole;
A second flange portion projecting at a position facing the projection portion;
A notch formed in the second flange and into which the protrusion is inserted;
Have
The fixture is characterized in that the cutout portion is widened, and the cutout portion has a plurality of hook-like portions on which the protrusions inserted into the cutout portion are caught.

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