JP2006165210A - Fixing clamp - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fixing clamp which can be separated easily from another fixing clamp even under stacked state. <P>SOLUTION: The fixing clamp 13 comprises a rectangular parallelepiped magnet 20, a yoke 15 having U-shaped cross-section for holding the magnet 20 to surround, and a folding piece 22 connected integrally to a part of the first sidewall 17 of the yoke 15 and having a folding portion 25 extending above the flat portion 16 of the yoke 15. At the distal end side of the folding portion 25 of the folding piece 22, a protrusion 28 is formed to protrude upward over the width direction thereof. Since the lower surface of the magnet touches the upper end of the protrusion 28 when a fixing clamp of identical shape is stacked on the fixing clamp 13, attraction effect of the yoke is weakened and the stacked fixing clamps can be separated easily from each other. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a fixture, and more particularly to a fixture that is engaged with a filter cover for a range hood or the like and is attached by a magnetic force.

  FIG. 6 is a perspective view showing a schematic structure of a conventional filter cover for a range hood.

  Referring to the figure, the range hood filter cover 70 is composed of a first divided body 71 and a second divided body 72, and each is formed by molding a sheet of aluminum foil. A filter 73 and a filter 74 made of nonwoven fabric or the like are attached to the center of each. Further, edge windings 75 a to 75 c are formed on the outer periphery of the first divided body 71, and edge windings 76 a to 76 c are formed on the outer periphery of the second divided body 72.

  A fixing tool 77 is attached to the edge winding 75 b of the first divided body 71, and a fixing tool 78 is attached to the edge winding 76 b of the second divided body 72.

  FIG. 7 is an enlarged perspective view of the “X” portion shown in FIG.

  Referring to the figure, the fixture 78 includes a yoke 80 having a U-shaped cross section, a magnet 81 attached to the inside of the yoke 80, and a bent portion 82 integrally connected to the yoke 80. . The bent portion 82 is not bent before the fixture 78 is attached to the second divided body 72, and an opening 84 is formed at a portion corresponding to the bent position.

  When the fixing member 78 is attached to the second divided body 72, the bent portion 82 is passed through the opening 83 formed in the vicinity of the edge winding 76b of the second divided body 72, and the back surface of the yoke 80 is formed at the opening 84 portion. Bend in the direction of. In this way, the fixture 78 is rotatably attached around the edge winding 76b of the second divided body 72. On the other hand, the fixture 77 has the same structure, and is similarly rotatably attached to the edge winding 75b of the filter cover 70 for the range hood.

  At the time of use, the edge winding 75a and the edge winding 76a are adjusted to an appropriate length according to the object to be attached, and the fixing tool 77 and the fixing tool 78 are attracted to the attached body of magnetic material. Therefore, the filter cover 70 for the range hood was fixed.

  The conventional fixtures as described above have no particular problems when used, but have caused problems when stored or packaged while attached to the filter cover for the range hood.

  FIG. 8 is a schematic side view for showing such a problem, and corresponds to the view taken along the line VIII-VIII shown in FIG.

  Referring to the drawing, the fixtures 78a and 78b having the same shape are overlapped vertically during normal storage and packaging. In this case, the fixture 78b located above the fixture 78a is strongly attracted to the back surface of the fixture 78a by the magnetic force of the magnet 81b. That is, the tips of the first side wall portion 86 and the second side wall portion 87 constituting the yoke 80b of the fixture 78b are in contact with the upper surface of the bent portion 82a constituting the fixture 78a and the upper surface of the yoke 80a. For this reason, the fixing tool 78b is in the same state as when the second divided body 72b is attached, and is firmly adsorbed to the fixing tool 78a.

  For this reason, it is not easy to separate the second divided body 72a and the second divided body 72b at the time of use, which has been an obstacle during handling.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a fixture that can be easily separated from each other even when they are superposed.

  In order to achieve the above object, the invention described in claim 1 is a fixture that is attached to an attached body and fixes the attached body to the magnetic body by magnetic force, and surrounds the magnet and the magnet. In a state where the flat portion and a side wall portion connected to the edge of the flat portion are connected to a part of the yoke and engaged with a part of the mounted body. And a protrusion that protrudes in a direction opposite to the yoke at a portion that overlaps the flat portion in plan view, and has a folded portion arranged to extend on the outer surface of the flat portion of the yoke. And a formed bent piece.

  If comprised in this way, when the fixture of the same shape is piled up in the same direction, a projection part contacts the lower surface of the magnet of an upper fixture.

  According to a second aspect of the present invention, in the configuration of the first aspect of the present invention, the magnet has a rectangular parallelepiped shape, and the protrusion is formed across the width direction of the folded portion.

  If comprised in this way, the part which a magnet and a projection part contact will become linear.

  According to a third aspect of the present invention, in the configuration of the first aspect of the present invention, the protrusion is formed at the center of the folded portion.

  If comprised in this way, the bending strength of a folding | returning part will improve.

  The invention according to claim 4 is a fixture that is attached to the attached body and fixes the attached body to the magnetic body by magnetic force, and holds the magnet and the magnet so as to surround the flat part and the flat part. On the outer surface of the flat portion of the yoke in a state of being connected to a part of the yoke and engaged with a part of the mounted body The folded portion has a folded portion that is arranged to extend, and a folded piece that is formed with an inclined portion that is inclined in a direction away from the yoke at the tip of the folded portion.

  If comprised in this way, when the fixing tool of the same shape is piled up in the same direction, an inclined part contacts the lower surface of the magnet of an upper fixing tool.

  The invention according to claim 5 is a fixture that is attached to the attached body and fixes the attached body to the magnetic body by magnetic force, and holds the magnet and the magnet so as to surround the flat part and the flat part. On the outer surface of the flat part of the yoke in a state of being connected to a part of the yoke and engaged with a part of the mounted body And a bent piece having a folded portion arranged so as to extend, and a protrusion protruding outward from the upper surface level of the folded portion is formed on the flat portion.

  If comprised in this way, when the fixture of the same shape is piled up in the same direction, a projection part contacts the lower surface of the magnet of an upper fixture.

  As described above, in the first aspect of the invention, since the protrusion of the lower fixture comes into contact with the lower surface of the magnet of the upper fixture, the adsorption force of the upper fixture is reduced and the fixtures are separated. It becomes easy to do.

  According to the second aspect of the invention, in addition to the effect of the first aspect of the invention, the contact portion between the magnet and the protrusion is linear, so that the contact state is stabilized.

  In addition to the effect of the invention of the first aspect, the invention according to claim 3 improves the bending strength of the folded portion, so that the state of engagement of the bent piece with the attached body becomes more stable.

  In the invention according to claim 4, since the inclined portion of the lower fixture comes in contact with the lower surface of the magnet of the upper fixture, the adsorption force of the upper fixture is reduced, and the fixtures are easily separated.

  According to the fifth aspect of the present invention, since the protrusion of the lower fixture comes into contact with the lower surface of the magnet of the upper fixture, the adsorption force of the upper fixture is reduced, so that the fixtures can be easily separated. Further, since the folded portion can be shortened, it becomes an efficient fixture.

  FIG. 1 is a perspective view showing a schematic structure of a fixture according to a first embodiment of the present invention, and corresponds to FIG. 7 shown as a conventional example.

  Referring to the drawing, the basic structure of the fixture 13 is the same as that of the fixture 78 shown in FIG. 7, but the configuration of the bent piece 22 is greatly different. Hereinafter, the configuration of the fixture 13 will be described focusing on this difference.

  The fixture 13 includes a rectangular parallelepiped magnet 20, a yoke 15 having a U-shaped cross section that holds the magnet 20 so as to surround the magnet 20, and an edge winding of a second divided body 72 that is connected to the yoke 15 and is an attached body. It is comprised from the bending piece 22 engaged with 76b. Specifically, the yoke 15 includes a rectangular sheet-like flat part 16 and a first side wall part 17 and a second side wall part 18 connected to each of the opposing edges of the flat part 16. Specifically, the bent piece 22 is connected to the center of the lower end portion of the first side wall portion 17 of the yoke 15, and extends to the outer side substantially parallel to the surface of the flat portion 16. A rising portion 24 extending substantially parallel to the surface of the first side wall portion 17 upward from the end portion, and a folded portion 25 connected to the upper end portion of the rising portion 24 and extending horizontally above the flat portion 16. Has been. Note that an opening 26 is formed at a connection portion between the rising portion 24 and the folded portion 25, so that the folded portion 25 can be easily bent with respect to the rising portion 24. Further, a projection 28 is formed in the vicinity of the end of the folded portion 25 so as to project upward in the width direction.

  In a state before the fixture 13 is attached to the second divided body 72, the folded portion 25 is not bent with respect to the rising portion 24, and these are aligned on the same plane. In this state, the tip of the folded portion 25 is passed through the opening 83 formed in the vicinity of the edge winding 76 b of the second divided body 72, and the folded portion 25 is folded in the direction of the flat portion 16 of the yoke 15 at the opening 26. . As a result, the fixture 13 is pivotably attached around the edge winding 76b of the second divided body 72.

  FIG. 2 is a side view showing a state in which the second divided body 72a and the second divided body 72b provided with the fixing tool 13a and the fixing tool 13b attached in this manner are superposed vertically. FIG. 2 is a view corresponding to the view seen from the II-II line shown in FIG.

  Referring to the figure, the fixing tool 13b located above the fixing tool 13a has the lower surface of the magnet 20b in contact with the upper end of the protrusion 28a, and the lower end of the first side wall 17b of the fixing tool 13b is bent by the fixing tool 13a. It is in the state which contact | connected the upper surface of the folding | returning part 25a of the piece 22a. In this way, the fixing tool 13b is in contact with only one of the first side wall part 17b and the second side wall part 18b (the first side wall part 17b in the figure) that exerts the attracting force of the yoke 15, so The attraction force of the fixture 13b to the fixture 13a is greatly reduced. For this reason, when separating the second divided body 72b from the second divided body 72a, it becomes possible to smoothly separate the fixing tool 13b without attracting a great force to the fixing tool 13a.

  In the figure, the first side wall portion 17b of the yoke 15 is attracted to the folded portion 25a of the fixture 13a, but the second side wall portion 18b of the fixture 13b is in the state of the yoke 15a of the fixture 13a. The same effect can be obtained even when the flat portion 16 is adsorbed. In any case, since the projection 28 is formed on the folded portion 25 of the fixture 13, the first side wall portion 17 and the second side wall portion 18 constituting the yoke 15 are simultaneously attracted to the upper surface of the lower fixture 13. Therefore, the attractive force is greatly reduced.

  Further, as shown in FIG. 2, the horizontal level of the upper end of the protrusion 28 with respect to the vertical distance S between the surface including the lower end of the first side wall 17 and the lower end of the second side wall 18 and the lower surface of the magnet 20. If the vertical distance L with respect to the horizontal level of the upper surface of the folded portion 25 is set to be large, the effect of reducing the attractive force can be exhibited more reliably, so that a more preferable structure is obtained.

  FIG. 3 is a perspective view showing a schematic structure of a fixture according to the second embodiment of the present invention, and corresponds to FIG. 1 according to the previous embodiment.

  Referring to the figure, in this embodiment, hemispherical projections 31a and 31b projecting upward are formed on the folded portion 25 of the folded piece 22 located above the flat portion 16 of the yoke 15. ing. As a result, when the fixture 13 having the same shape is overlaid, the lower surface of the magnet 20 of the upper fixture 13 comes into contact with the upper end of at least one of the protrusion 31a and the protrusion 31b, and is positioned above. It is possible to similarly reduce the adsorption force of the fixture.

  In this embodiment, since the bent portion 25 is formed at the center portion of the folded portion 25 and the bending strength of the folded portion 25 is improved, the folded piece 22 is engaged with the second divided body 72. A more stable effect will also occur.

  Even in this embodiment, if the protruding length of the protrusion 31 is set to be larger than the vertical distance between the lower surface of the magnet and the lower surface of the side wall of the yoke, the effect of reducing the attractive force is further increased. A preferred structure is obtained.

  FIG. 4 is a perspective view showing a schematic structure of a fixture according to the third embodiment of the present invention, and corresponds to FIG. 1 according to the first embodiment.

  Referring to the figure, in this embodiment, the inclination extending so as to incline away from the flat portion 16 at the tip of the folded portion 25 of the bent piece 22 extending above the flat portion 16 of the yoke 15. The difference is that the portion 32 is formed. For this reason, when the fixture 13 having the same shape is disposed above, the end of the inclined portion 32 comes into contact with the lower surface of the magnet, so that the attractive force can be reduced as in the previous embodiments. It becomes possible. Since the inclined portion 32 is configured to move away from the upper surface of the flat portion 16 toward the tip, the folded portion 25 is bent with respect to the rising portion 24 in advance as shown in FIG. The edge winding 76 of the body 72 can be attached so as to be inserted between the inclined portion 32 and the flat portion 16.

  Even in this embodiment, the distance between the tip horizontal level of the inclined portion 32 and the upper surface level of the flat surface of the yoke is set larger than the vertical distance between the lower surface of the magnet and the lower surface of the side wall portion of the yoke. If it does, it will become a preferable structure with a higher adsorption reduction effect.

  FIG. 5 is a perspective view showing a schematic structure of a fixture according to the fourth embodiment of the present invention, and corresponds to FIG. 1 according to the first embodiment.

  Referring to the drawing, in this embodiment, unlike each of the previous embodiments, no projection is formed on the folded portion 25 of the folded piece 22. Instead, hemispherical protrusions 34a and 34b protruding upward are formed on the flat part 16 of the yoke 15 that is not covered with a part of the folded part 25. The protruding heights of the protruding portions 34 a and 34 b are set so as to be located above the upper surface of the folded portion 25 of the bent piece 22. As a result, when a fixture having the same shape as the fixture 13 is installed above the lower surface of the magnet 20, the lower surface of the magnet 20 comes into contact with the upper ends of the projections 34a and 34b, as in the previous embodiments. The adsorption force to the fixture 13 is reduced. In this embodiment, since the length of the folded portion 25 can be set shorter than in the previous embodiments, the structure is advantageous in terms of cost.

  In this embodiment, the distance between the horizontal level of the tip of the projection 34 and the upper surface level of the folded portion should be set larger than the vertical distance between the lower surface of the magnet and the lower surface of the side wall portion of the yoke. Thus, a preferable structure having a higher adsorption reduction effect is obtained.

  In the first to third embodiments described above, the protruding portion 28, the protruding portion 31, and the inclined portion 32 are formed at specific locations of the folded portion 25, but these are a part of the folded portion. Therefore, if it is formed in a portion overlapping the flat portion 16 of the yoke 15 in plan view, the same effect can be obtained.

  Furthermore, in each of the above-described embodiments, it is assumed that the fixture is composed of a rectangular parallelepiped magnet and a yoke surrounding the magnet. However, even if the shape of the magnet and the yoke are other shapes, the same bent piece is formed. Needless to say, the same applies.

  Furthermore, in said 2nd and 4th embodiment, although the shape of a projection part is hemispherical and the number is set to two each, if the shape of a projection part has an effect of the present invention, Without being limited thereto, a known shape such as a columnar shape, a rectangular parallelepiped shape, or a substantially conical shape may be used, and the number thereof is not limited, and may be one or three or more. Needless to say.

It is the perspective view which showed schematic structure of the fixing tool by 1st Embodiment of this invention. It is the figure corresponding to the figure seen from the II-II line shown in FIG. 1, Comprising: It is the figure which showed the state which piled up the two fixing tools shown in FIG. 1 up and down. It is the perspective view which showed schematic structure of the fixing tool by 2nd Embodiment of this invention. It is the perspective view which showed schematic structure of the fixing tool by 3rd Embodiment of this invention. It is the perspective view which showed schematic structure of the fixing tool by 4th Embodiment of this invention. It is the perspective view which showed schematic structure of the conventional filter cover for range hoods. FIG. 7 is an enlarged perspective view of an “X” portion shown in FIG. 6. It is a figure corresponding to the figure seen from the VIII-VIII line shown in FIG. 7, Comprising: It is a figure for demonstrating the problem of the conventional fixing tool shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 13 ... Fixing tool 15 ... Yoke 16 ... Flat part 17 ... 1st side wall part 18 ... 2nd side wall part 20 ... Magnet 22 ... Bending piece 25 ... Folding part 28, 31, 34 ... Projection part 32 ... Inclination part The same reference numerals denote the same or corresponding parts.

Claims (5)

A fixture that is attached to a body to be mounted, and that fixes the body to be mounted to a magnetic body by a magnetic force,
A magnet,
A yoke having a U-shaped cross section, which is held so as to surround the magnet and includes a flat portion and a side wall portion connected to an end edge of the flat portion,
A folded portion that is connected to a part of the yoke and is engaged with a part of the attached body and is arranged to extend on an outer surface of the flat portion of the yoke; And a bent piece in which a protruding portion protruding in a direction opposite to the yoke is formed at a portion overlapping the flat portion in plan view. The magnet has a rectangular parallelepiped shape,
The fixture according to claim 1, wherein the protrusion is formed across a width direction of the folded portion. The fixture according to claim 1, wherein the protruding portion is formed at a central portion of the folded portion. A fixture that is attached to a body to be mounted, and that fixes the body to be mounted to a magnetic body by a magnetic force,
A magnet,
A yoke having a U-shaped cross section, which is held so as to surround the magnet and includes a flat portion and a side wall portion connected to an end edge of the flat portion,
A folded portion that is connected to a part of the yoke and is engaged with a part of the attachment body and is arranged to extend on the outer surface of the flat portion of the yoke, and at the tip of the folded portion Is a fixture including a bent piece formed with an inclined portion inclined in a direction away from the yoke. A fixture that is attached to a body to be mounted, and that fixes the body to be mounted to a magnetic body by a magnetic force,
A magnet, a yoke having a U-shaped cross section, which is held so as to surround the magnet and includes a flat portion and a side wall portion connected to an end edge of the flat portion;
A folded piece having a folded portion that is connected to a part of the yoke and is engaged with a part of the attached body and arranged to extend on the outer surface of the flat part of the yoke;
The flat part is formed with a protrusion that protrudes outward from the level of the upper surface of the folded part.

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