JP2003148029A - Magnet type mounting-demounting instrument - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door stopper, which can prevent a looseness generated between a door under an open state and a door fixing base and can operate the holding of the open state of the door and the release of the holding of the open state of the door easily in the standing posture of a user, and a supporter available for supporting a lightweight article at a low cost in a comparatively small size. SOLUTION: A magnet type mounting-demounting instrument is composed of a magnet base 2 in which a demagnetized state and an excited state can be changed over, a supporting member 4 supporting the magnet base 2, a lever 3a being installed to the magnet base 2 and being capable of changing over the demagnetized state and excited state of the magnet base 2 and iron pieces arranged at places corresponding to the main attraction surfaces of the magnet base 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnet type attaching / detaching device.

[0002]

2. Description of the Related Art Generally, a door stopper for holding an open door is provided with a hook-like piece provided near the lower edge of the door to be opened and a floor surface or a floor surface near the open position of the door. The door fixing base fixed to the wall surface of the door, and the ring-shaped locking tool provided on the door fixing base and capable of engaging with the hook-shaped piece.

[0003]

In the door stopper having such a conventional structure, the door stopper is provided on the floor surface or a wall surface near the floor surface when the door is held in the open state or when the held state of the door is released. With the locking tool of the door fixing base, the user can sit down to a position where their hands can reach,
They bent over and operated a locking tool to hold the door in the open state, or to release the hold in the open state of the door.

However, it is necessary to lower the waist to a position where the locking tool can be reached or bend down to operate the locking tool.
It was a troublesome operation. Further, even when the user carries luggage with both hands and both hands are occupied, the locking tool cannot be operated, which is inconvenient.

Further, in the door stopper having the above construction, the holding of the opened state of the door and the cancellation of the held state of the door are provided by the hook-shaped piece provided on the door and the door fixing base. Since it is carried out by engaging with the existing locking device, when external force acts on the door due to strong wind, rattling may occur between the hook-shaped piece and the locking device, which may cause a noise source. there were.

On the other hand, in order to prevent rattling between the door held in the open state and the door fixing base, the door is brought into close contact with the door fixing base by using a magnet or the like. It should be held in the state.

However, when the door stopper has a structure in which the door and the door fixing base are simply brought into close contact with each other by a magnet or the like, in order to hold the door in the opened state, a slight external force acts on the opened door. Even so, a close contact force that does not eliminate the open state is required, and conversely, a release force that is equal to or greater than the close contact force is required to eliminate the holding of the open state of the door. Therefore, the holding of the open state of the door cannot be easily canceled, and it cannot be said that the structure is easy to use.

Further, when the door and the door fixing base are brought into close contact with each other, the door stopper is provided with an attaching / detaching mechanism which allows the door and the door fixing base to be firmly brought into close contact with each other, and when the close contact between the door and the door fixing base is to be eliminated. Although it may be possible to provide the door stopper, it may unnecessarily increase the size of the door stopper and increase the manufacturing cost.

Further, it is possible to improve the convenience by equipping another article with the above-mentioned attachment / detachment mechanism, for example, in a support for a lightweight article, but similar to the case of the above door stopper. In addition, there is a problem that the support is unnecessarily increased in size and the manufacturing cost is increased.

Therefore, the present invention solves such a problem to prevent rattling between the door in the open state and the door fixing base, and to maintain the open state of the door and the open state of the door. An object of the present invention is to provide a door stopper that can be easily operated by a user in a standing posture and a support useful for supporting a lightweight article, which is relatively small and inexpensive.

[0011]

In order to solve the above-mentioned problems, the invention according to claim 1 is directed to a magnet base capable of switching between a demagnetized state and an excited state, a support member for supporting the magnet base, and the magnet base. A switching member attached to the magnet base and capable of switching between the demagnetized state and the excited state of the magnet base; and a magnetic body arranged at a position facing the attraction surface of the magnet base.

According to this structure, the magnet base can be supported by the support member with the attracting surface of the magnet base oriented in an arbitrary direction. Further, since the magnetic body and the magnet base can be brought into close contact with each other, it is possible to prevent rattling. Also, by switching the magnet base to the excited state by the switching member provided on the magnet base, the attraction force of the magnet base to the magnetic body can be strengthened, and the magnetic body and the magnet base can be more firmly attached. You can On the other hand, by switching the magnet base to the demagnetized state by the switching member, the attraction force of the magnet base to the magnetic body can be weakened, and the magnetic body can be easily separated from the magnet base. Therefore, by switching the magnet base between the excited state and the demagnetized state by the switching member provided on the magnet base, it is possible to increase or decrease the attraction force of the magnet base and to easily attach the magnetic body to the magnet base. Can be detached.

According to a second aspect of the present invention, in the magnet type desorption tool according to the first aspect, the support member of the magnet base is fixed to a position corresponding to the opened door, and the door side corresponding to the magnet base is provided. A magnetic body is provided at a position, and a switching member that can switch the demagnetized state and the excited state of the magnet base is used as a lever, thereby forming a door opening / closing stopper.

According to this structure, the support member of the magnet base is fixed at a position corresponding to the opened door, and the magnetic body is provided at the door side position corresponding to the magnet base. At the position where the support member is fixed, the magnetic body and the magnet base can be detached and attached, that is, the holding of the opened state of the door or the cancellation of the held state of the door can be performed by the lever that is the switching member. Further, when the magnetic body is provided at the lower position of the door, the switching member is a lever, so that the user can easily operate the lever with the tip or the back of the foot. Therefore, the user can easily switch between the demagnetized state and the excited state of the magnet base, that is, hold the opened state of the door or cancel the held state of the door without bending over and using the hand.

According to a third aspect of the present invention, in the magnet type attaching / detaching instrument according to the first aspect, the supporting member is provided with the article holding member. With such a configuration, the article holding member provided on the support member that supports the magnet base can hold the article according to the purpose of use, and can be used in various places suitable for the use of the article. It can be adsorbed and fixed to the magnetic substance. Therefore, even if the article itself does not have the attachment / detachment means, it is possible to attach the attachment / detachment means to the article by holding the article by the article holding member.

According to a fourth aspect of the present invention, in the magnet type attaching / detaching instrument according to any one of the first to third aspects, the magnet constituting the magnet base is plate-shaped,
An N pole and an S pole of the magnet are made to appear on the flat surface of the plate, and a yoke for demagnetizing and exciting the magnet is supported around the magnet so as to be relatively movable in the circumferential direction. It will be.

According to such a structure, the magnet constituting the magnet base is formed in a plate shape, and the N pole and the S pole of this magnet are made to appear on the planar surface of the plate shape to demagnetize and excite the magnet. The main attraction surface of the magnet base can be a plane parallel to the planar surface of the plate by surrounding the magnet and supporting the magnet so as to be relatively movable in the circumferential direction. As a result, the magnet base can be made flat with respect to the magnetic body, and the overall weight and thickness of the magnet base can be reduced.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION (Embodiment 1) A door stopper which is a first embodiment of the present invention will be described in Embodiment 1 with reference to FIGS.

FIG. 1 is a sectional view from the front side showing the demagnetized state of the door stopper 1 according to the first embodiment of the present invention, and FIG. 2 is a sectional view from the front side showing the excited state of the door stopper 1. 3 is a side view of the door stopper 1, FIG.
5 is a sectional view taken along the line AA in FIG. 3, and FIG. 5 is a sectional view in the state shown in FIG. Further, FIG. 6 is a perspective view showing the shape of the switching portion 3 having the magnet 5, the magnet receiving member 6 and the lever 3a which is the switching member, which constitutes the door stopper 1, and FIG. 7 is a perspective view of the magnet base used in the present invention. FIG. 8 shows the principle of the demagnetized state and the excited state, and FIG. 8 shows the door stopper 1.
It is a figure which shows the use condition of. The magnet 5 is constructed so that its north pole and south pole appear in the radial direction.

The magnet base used in the present invention means, for example, as shown in FIG. 7 (a), the N pole side and the S pole side of the magnet 5 are made of a magnetic material, and are arranged symmetrically. By connecting via the two yokes 7, the demagnetized state is obtained. On the other hand, as shown in FIG. 7B, the N pole side and the S pole side of the magnet 5 are prevented from being connected via the yoke 7. It is possible to switch between the demagnetized state and the excited state by rotating the magnet 5 and the yoke 7 in the circumferential direction in the excited state.

As shown in FIGS. 1 to 5, a door stopper 1 according to a first embodiment of the present invention includes a magnet base 2 and a lever 3a which is a switching member for switching the magnet base 2 between a demagnetized state and an excited state. And a switching member 3 for supporting the magnet base 2 in a symmetrically divided structure, and the switching member 3 mounted on the other side in the axial direction of the magnet base 2 and the supporting member 4 The divided piece 4g in 4 is sandwiched and held.

As shown in FIGS. 1, 2 and 4 to 6, the magnet base 2 has a columnar shape, and an N pole and an S pole appear on its radial cross section (FIGS. 1, 2 and 5). And a magnet 5 configured as shown in phantom in FIG. 6 and a non-magnetic material, one side in the axial direction is a cylindrical portion 6a capable of accommodating the magnet 5, and the other side in the axial direction is a radial cross-section length. It is composed of a magnet receiving member 6 which is a circular long cylindrical portion 6b, and two cylindrical piece-shaped yokes 7 (not shown in FIG. 6) made of a magnetic material.

The axial length of each yoke 7 is slightly longer than the axial length of the cylindrical portion 6a of the magnet receiving member 6, and the inner circumference of each yoke 7 is When the yoke 7 is arranged on the outer circumference of the cylindrical portion 6a of the magnet receiving member 6, a gap 7b is provided so that the yoke 7 and the yoke 7 do not contact each other. In addition, the yoke 7 has a cutout 7 at the center in the axial direction and the circumferential direction.
a (not shown in FIGS. 5 and 6) is formed.

The magnet 5 constituting the magnet base 2 is
With the N pole side and the S pole side of the magnet 5 positioned vertically when viewed from the front, the magnet 5 is fitted into the cylindrical portion 6a of the magnet receiving member 6 and is integrally fixed to each other with an adhesive or the like.
Further, two yokes 7 are provided on the outer periphery of the cylindrical portion 6a of the magnet receiving member 6 at positions symmetrical with each other when viewed from the front direction. The yoke 7 has an inner peripheral surface having a cylindrical portion 6a.
Is arranged so as to contact the outer peripheral surface of the. The main attraction surface 10 of the magnet base 2 is a surface on one end side in the axial direction of each yoke 7.

In this state, that is, in the state shown in FIG. 1, the magnet base 2 is in the demagnetized state, and when the magnet 5 and the yoke 7 are relatively rotated 90 degrees from this state, that is, as shown in FIG. When the magnet 5 and the yoke 7 are rotated by 90 degrees relative to each other so that the distance 7b between the two yokes 7 is located at the boundary between the N pole and the S pole of the magnet 5, the N pole side of the magnet 5 is And the S pole side are no longer connected via the yoke 7, and the magnet base 2 is excited. Therefore, the demagnetized state and the excited state of the magnet base 2 are switched every time the magnet 5 and the yoke 7 relatively rotate 90 degrees.

As shown in FIGS. 1 to 6, the switching portion 3 is composed of a columnar body 3b and a lever 3a integrally formed so as to project radially outward from the side surface of the columnar body 3b. A deep hole 3c into which the long cylindrical portion 6b of the magnet receiving member 6 can be inserted is formed at the center of the cylindrical body 3b. Further, as shown in FIGS. 4 and 6, for example, two fitting holes 3d are formed at a position of 90 degrees in the circumferential direction from the position of the lever 3a in the switching portion 3. In addition, two fitting holes 3e (see FIG. 6) are also provided at positions facing the fitting hole 3d.
(Not shown) is formed.

The stopper 9 of the lever 3a has a projection 9a fitted into two pairs of fitting holes 3d and 3e formed in the switching portion 3, and the projection 9a is fitted into the fitting hole 3d.
By being fitted into any one of 3e, lever 3a
Can be rotated up to 90 degrees in the circumferential direction. Therefore, switching between the demagnetized state and the excited state of the magnet base 2 can be performed reliably and accurately.

The stopper 9 has one fitting hole 3d.
Since it can be selectively attached to either the fitting hole 3e or the other fitting hole 3e, the attachment position of the stopper 9 can be changed according to whether the door held in the open state is opened right or left, and the door stopper 9 is operated. It is possible to improve the sex.

The support member 4 is, as shown in FIGS.
It has a bilaterally symmetric division structure, and the shape of the support member 4 is formed by fitting the two division pieces 4g together. The support member 4 is composed of a substrate portion 4a formed in a flat plate shape and a cylindrical holding portion 4b capable of holding the magnet base 2.

As shown in FIG. 4, the base plate portion 4a is provided with, for example, four round holes 4c through which screws (not shown) used to fix the door stopper 1 to the floor are inserted. Has been formed.

Further, as shown in FIGS. 1, 2 and 4,
The notch 7a is provided at two positions in the circumferential direction inside the holding portion 4b, that is, at the positions corresponding to the notches 7a formed in the respective yokes 7 of the magnet base 2 when the magnet base 2 is held. A protrusion 4d that can enter is formed. Moreover, FIGS.
Further, as shown in FIG. 8, a cutout portion 4h exposing one end surface of the yoke 7 is formed on one end surface in the axial direction of the holding portion 4b. Further, as shown in FIGS. 3 and 5, the upper half of the holding portion 4b on the other axial side, that is, the position corresponding to the rotation range of the lever 3a when the switching portion 3 is held by being sandwiched, The notch 4e is formed in a semicircular shape.

To construct the door stopper 1, first,
The yoke 7 is attached to each of the divided pieces 4g of the support member 4. At this time, the tip of the yoke 7 is made to project from a notch (not shown) formed at the tip of the holding part 4b in the axial direction, and the protrusion of the holding part 4b is provided at the notch 7a of the yoke 7. The part 4d is fitted.
Thereby, each yoke 7 can be prevented from rotating together with the magnet 5.

Next, the long cylindrical portion 6b of the magnet receiving member 6 with the magnet 5 fitted therein is fitted into the deep hole 3c of the switching portion 3. The magnet 5 is fitted in the magnet receiving member 6 so that the position of the lever 3a and the position of the magnetic pole of the magnet 5 match, for example, as shown in FIG.

In order to hold the magnet receiving member 6 and the switching portion 3 in this state by the cylindrical holding portion 4b, the split piece 4 in which the yoke 7 is attached from both sides when viewed from the front.
By sandwiching with g and forming the shape of the support member 4,
Assemble the door stopper 1.

As shown in FIG. 8, in the vicinity of the lower edge of the door 11 (indicated by the one-dot chain line) which is held in the open state and released from the open state by the door stopper 1 thus constructed, , The main suction surface 10 of the door stopper 1
An iron piece 12 (shown by a one-dot chain line) that is a magnetic substance that can be adsorbed on is provided. The door stopper 1 is fixed to the floor surface at a position corresponding to the opened door 11.

When the door 11 is opened and held in this state, the magnet base of the door stopper 1 is excited, that is, the lever 3a is rotated to the position shown in FIG. The magnet 5 fitted in the magnet receiving member 6 in the circumferential direction.
The magnets 5 are rotated once so that the N pole side and the S pole side of the magnet 5 are not connected by the respective yokes 7. The iron piece 12 provided on the opened door 11 is attracted to the main attraction surface 10 of the door stopper 1 in this state. At this time, since the magnet base of the door stopper 1 is in the excited state, the iron piece 12 can be firmly and integrally attracted.

Therefore, even if an external force acts on the door 11 due to strong wind or the like, the door 11 and the door stopper 1 are firmly in close contact with each other, so that rattling can be prevented.

When the door 11 is released and the door 11 is closed, as shown in FIG. 8, the lever 3a of the door stopper 1 is shown at the position indicated by the chain double-dashed line, that is, shown in FIG. The magnet base in the excited state was switched to the demagnetized state by rotating until the position or the stopper 9 attached to the switching portion 3 of the door stopper 1 hits the edge of the cutout portion of the support member 4 to weaken the attracting force. Then, the door 11 is closed.

At this time, the member for switching the demagnetized state and the excited state of the door stopper 1 is the lever 3a, and the position of the lever 3a when the magnet base is in the excited state is the left side when viewed from the front of the door stopper 1. Since the position is the tilted position, the user can easily rotate the lever 3a to a predetermined position with the tip of a foot or the like, that is, the magnet base in the excited state can be surely and accurately switched to the demagnetized state. . Therefore, the user can easily cancel the holding of the open state of the door 11 without using a hand in a standing posture.

In the first embodiment, the case where the door stopper 1 is used by being fixed to the floor surface 8 has been described, but by changing the shape of the holding portion 4b of the supporting member 4, the magnet base 2 of the magnet base 2 is changed. Main suction surface 10
Since the direction in which the door faces can be easily changed, the door stopper 1 can be fixed to the wall surface for use.

The relative position of the magnet 5 and the yoke 7 with respect to the axial direction may be shifted toward the main attraction surface 10 side to further weaken the attraction force in the demagnetized state of the magnet base. It is possible. (Second Embodiment) A furniture 13 having a door opening / closing stopper according to a second embodiment of the present invention will be described in the second embodiment with reference to FIGS. 9 to 13.

FIG. 9A is a sectional view of the furniture 13 having a door opening / closing stopper according to the second embodiment of the present invention in a demagnetized state, and FIG. 9B is a sectional view of the furniture 13 in an excited state. 9A is a sectional view taken along the line BB in FIG. 9A, FIG. 10B is a sectional view taken along the line CC in FIG. 9B, and FIG. Showing the yoke 14 in FIG. 12, FIG. 12 and FIG. 13 are furniture 13
It is a figure which shows the use condition. In addition, 17 is a shelf in the furniture 13, and 12 is an iron piece that is attached to the shelf 17 side and can be attracted to the magnet base 2 in the door 15.

As shown in FIGS. 9 (a) and 9 (b),
The furniture 13 includes a magnet base 2, a door 15 that is a supporting member of the magnet base 2, and the magnet base 2.
And a knob portion 16 which is a switching member for switching between the demagnetized state and the excited state.

The structure of the magnet base 2 used for the door 15 of the furniture 13 is almost the same as that used in the first embodiment. However, the second embodiment
14 of the magnet base 2 used in
As shown in FIGS. 9 to 11, is composed of a cylindrical piece portion 14a and a disk piece portion 14b integrally formed on the axial rear side thereof. A notch 14c is formed along the axial direction in the central portion of the cylindrical piece portion 14a in the circumferential direction, and the axial length of the cylindrical piece portion 14a of the yoke 14 is slightly longer than the axial length of the magnet 5. Has been formed. The other components, the magnet 5 and the magnet receiving member 6, are the same as those used in the first embodiment.

Door 1 which is a support member for magnet base 2
5, a first round hole 15a into which the cylindrical piece portion 14a of the yoke 14 can be fitted, as shown in FIGS. 9 and 10,
A second round hole 15b having the same diameter as the outer diameter of the disk piece portion 14b of the yoke 14 is formed, and a radial inner surface 15c is formed at the boundary between the first round hole 15a and the second round hole 15b. Has been formed. At the position corresponding to the cutout portion 14c of the cylindrical piece portion 14a in the first round hole 15a, a projection portion 15d capable of entering the cutout portion 14c is formed.
By fitting d into the notch 14c in the yoke 14, it is possible to prevent the magnet 5 and the yoke 14 from rotating together, and the magnet 5 and the yoke 14 can be rotated relative to each other.

When the magnet base 2 is fitted into the door 15, the notch 14c in the cylindrical piece 14a of the yoke 14 and the protrusion 15d in the first round hole 15a.
Are fitted together, and the disc piece portion 14b is engaged with the radially inner surface 15c of the inner surface of the door 15.

As shown in FIGS. 9 (a) and 9 (b),
The knob portion 16 which is a switching member between the demagnetized state and the excited state of the magnet base 2 is made of, for example, resin, and the inside of the knob portion 16 is formed so that the long cylindrical portion 6b of the magnet receiving member 6 can be inserted therein. A round hole (not shown) is formed in the center of the knob portion 16, and the magnet receiving member 6 and the knob portion 16 can be fixed to each other by using a screw 18 or the like.

In the furniture 13 configured as described above, the magnet base 2 in the door 15 of the furniture 13 is
As shown in FIGS. 9 (a) and 10 (a), in the demagnetized state, the knob portion 16 is rotated by 90 degrees in the circumferential direction, so that FIG. 9 (b) and FIG. 10 (b) are obtained. As shown
The magnet 5 can be rotated 90 degrees in the circumferential direction with respect to the yoke 14, and the magnet base 2 can be switched to the excited state. The magnet base 2 used for the door 15 of the furniture 13 is adjusted in advance such that the magnetic force of the magnet 5 is small enough to leave a slight attraction force in the demagnetized state.

As shown in FIG. 12, an iron piece 12 that can be attracted to the magnet base of the door 15 is provided on the side of the shelf 17 that corresponds to the closed door 15.
As shown in FIG. 13, the door 15 of the furniture 13 is closed, and the knob 16 is rotated to a predetermined position in the circumferential direction in a state in which the iron piece provided on the shelf 17 side and the magnet base are attracted. When the magnet base is in the excited state, the attraction force between the iron piece and the magnet base becomes stronger, and the door 15 cannot be opened.

As a result, when the furniture 13 is greatly shaken by, for example, an earthquake, the articles stored in the furniture 13 push the door 15 from the inside of the furniture 13 to open the furniture 13.
9B and 10B, even if the iron piece 12 provided on the shelf 17 side and the yoke 14 on the door 15 side of the magnet base 2 are attempted to scatter out of the door, as shown in FIGS. 9B and 10B. Due to the strong suction force and the disc piece portion 14b of the yoke 14 and the radially inner surface 15c of the door 15 engaging with each other, the door 1
It is possible to prevent the article 5 from being pushed open, the article 15 pushing out the door 15 from the inside of the furniture 13 and popping out to the outside to be scattered.

Furniture 1 having such a door opening / closing stopper
3 is often stored overhead, and can be used for a kitchen storage rack where the weight of the stored items tends to be heavy, a cupboard for storing many broken objects, and the like.

As shown in FIG. 12, this furniture 13
Since the attraction force of the magnet base 2 in is adjusted so that it remains slightly even in the demagnetized state,
The normal opening and closing of the door 15 in the furniture 13 can be performed with the magnet base 2 in the demagnetized state. That is, by leaving the magnet base 2 in the demagnetized state, it can be used in the same manner as the conventional magnet detachable furniture.

When the door 15 of the furniture 13 is opened and closed in the demagnetized state, when the door 15 is opened by holding the knob portion 16, the magnet 5 and the yoke 14 are attracted to each other, so that the magnet receiving member 6 is inserted from the yoke 14. Although the knob portion 16 does not come off, the yoke 1 is not removed by an appropriate method.
It is also possible to ensure that the magnet receiving member 6 and the knob portion 16 do not come off from the position 4.

Further, as described above, the furniture 13 is switched between the demagnetized state and the excited state, in other words, the door 15 is normally used.
The state in which the door can be opened and closed and the state in which the door 15 is not opened can be easily switched by rotating the knob portion 16 in the circumferential direction in units of 90 degrees. Therefore,
It is possible to easily add seismic resistance to furniture that is normally used. (Third Embodiment) A lighting receiver according to a third embodiment of the present invention will be described with reference to FIGS. 14 to 15.
Will be explained.

FIG. 14A is a front view of the illumination receiver 19 according to the third embodiment of the present invention, FIG. 14B is a side view of the illumination receiver 19, and FIG. 15A is FIG. 15A is a sectional view taken along the line D-D in FIG. 15A, and FIG. 15B is a diagram showing a demagnetized state of the magnet base 2 shown in FIG.

As shown in FIGS. 14A and 14B, the illumination receiver 19 is a magnet base, a support member 20 for the magnet base, and a switching member for switching between the demagnetized state and the excited state of the magnet base. It has a yoke holding ring 21 having a lever 21 a and an illumination holding portion 22 which is an article holding member integrally formed with the support member 20. Reference numeral 23 is a magnetic plate that is a magnetic body that can be attracted to the magnet base of the illumination receiver 19. The support member 20 has a cylindrical shape and is divided into a holding portion support side 20a that is integrally formed with the illumination holding portion 22 and a magnet fixing side 20b that fixes the magnet 5 in the magnet base in the circumferential direction. It is said that.

As shown in FIGS. 15 (a) and 15 (b), the magnet base 2 in the illumination receiver has a magnet 5 formed in a plate shape with an oval cross section in the radial direction, and a magnet 5.
And a yoke holding ring 21 having a lever 21a which is a switching member for switching the magnet base 2 between the demagnetized state and the excited state. The magnet 5 is constructed so that its north pole and south pole appear in the radial direction. In addition, the magnet base 2 used for the illumination receiver 19 is adjusted in advance so that the magnetic force of the magnet 5 or the like is such that the attraction force in the demagnetized state remains slightly.

The yoke holding ring 21 can engage with the yoke 7 by the protruding portion 21b formed so as to protrude inward in the radial direction, and the yoke 7 is rotated in the circumferential direction by rotating the lever 21a. be able to. In addition, 24 is a non-magnetic material and is formed in a cylindrical shape,
It is a magnet protection member that surrounds the magnet 5 to prevent the magnet 5 from rubbing against the yoke 7.

At the center of the magnet fixing side 20b of the support member 20, the magnet 5 fixed integrally with the magnet protection member 24 is arranged, and corresponds to the gap between the magnet protection member 24 and the magnet 5. A protruding portion 20c that prevents the magnet 5 from rotating in the circumferential direction is formed at the position to be turned. Further, in the range of 90 degrees along the circumferential direction on the magnet fixed side 20b, the lever 21a of the yoke holding ring 21 is provided.
The cutout portion 20d is formed so as to be rotatable.

Supporting portion supporting side 20a of the supporting member 20
The illumination holding portion 22 formed integrally with is cylindrical and has a shape that is divided in the circumferential direction, and is capable of holding a lighting fixture inside the cylindrical shape. Reference numeral 22a is a guide surface for fitting the lighting fixture inside the lighting holding portion 22.

On the magnet fixed side 20b in which the magnet 5 fitted to the magnet protection member 24 and the yoke holding ring 21 are set, the holding portion supporting side 20a integrally formed with the illumination holding portion 22. Fit together. At this time, the protrusion 20c is formed in the gap between the magnet protection member 24 and the magnet 5.
So that it fits in. The lighting fixture 19 is configured by fixing the magnet fixing side 20b and the holding portion supporting side 20a so as not to come off from each other by an appropriate method.

When the lighting fixture 19 having such a structure is used at a work site where the position of the lighting fixture is relatively frequently changed, for example, in a work site such as automobile repair, the holding part support side 20a is integrally formed. After holding the lighting fixture in the formed lighting holding portion 22, as shown in FIG. 15B, the lever 21a of the yoke holding ring 21 engaged with the yoke 7 of the magnet base 2 is circumferentially moved. Then, the magnet base 2 is demagnetized, and the main attraction surface 10 of the illumination receiver 19 is attracted while being pressed against the surface of the vehicle body of the automobile. At this time, since the magnet base 2 of the illumination receiver 19 is in a demagnetized state, the surface of the vehicle body of the automobile is attracted by the force of attraction when the main attraction surface 10 of the illumination receiver 19 is attracted to the surface of the automobile body. It is possible to prevent it from being scratched.

Next, the magnet base 2 of the illumination receiver 19 is excited by rotating the lever 21a as shown in FIG. 15 (a), and the main attraction surface 10 of the illumination receiver 19 and the vehicle body of the automobile. Firmly adhere to the surface and fix.

As described above, the magnet 5 used in the magnet base 2 of the illumination receiver 19 is formed into a plate shape, and the main attraction surface is a surface parallel to the radial direction of the magnet, so that the illumination receiver 19 is supported. Member 20 and magnet base 2
Can be configured in a flat shape, and the overall weight and thickness can be reduced. Therefore, when it is used for a work in which the position of the luminaire needs to be changed frequently, the worker can easily change the position of the luminaire many times.
Moreover, the operation of this change does not burden the operator. Also,
Since the illumination receiver 19 is configured to be lightweight and thin, it can be easily transported and stored after the work is completed without any burden.

Further, the illumination holding portion 22 which is the article holding member of the illumination receiver 19 can be used as the hook 25 as shown in FIG. . In this case, by keeping the magnet base of the article retainer 26 attracted to the magnetic plate 23 in an excited state, the article 27 having a heavier weight than the ordinary magnet type article retainer is also retained. be able to.

Further, as shown in FIG. 17B, the article holding member is a clip 28, and the panel 2 as a whole is used.
It is also possible to use a panel holder 30 for holding an article such as 9.

When a plurality of panel holders 30 are used to hold one large panel 29, the panel 29
The weight of the panel holder becomes large, and in a normal magnet type panel holder, there are cases where it cannot be held or more panel holders have to be used. However, a panel holder having a magnet base as in the present invention occurs. If it is 30, by setting the magnet base in the panel holder 30 attracted to the magnetic plate 23 to an excited state,
Even a large and heavy panel 29 can be held by a small number of panel holders 30.

As in the third embodiment, the article holding member according to the purpose is provided on the supporting member having the magnet base, so that the desired article can be easily and inexpensively attached / detached. can do. Further, by integrally providing the article holding member with the support member, the structure does not become complicated, and the entire product can be manufactured to be lightweight, thin, and inexpensive.

Further, switching between the demagnetized state and the excited state of the magnet base of the illumination receiver 19 is performed by referring to FIG. 14 and FIG.
As shown in FIG. 5, the lever 21a is used. However, it is also possible to switch between the demagnetized state and the excited state of the magnet base without using the lever. Its structure is shown in FIGS. 17 and 18. FIG. 17 shows the illumination receiver 3
18 is a perspective view showing the structure of FIG. 1, and FIG.
FIG.

As shown in FIG. 18, the illumination receiver 31 is
Magnet base and magnet base support member 32
And an illumination holding portion 33 which is a member for switching between a demagnetized state and an excited state of the magnet base, and an article holding member.

As shown in FIG. 17, the support member 32 has a cylindrical shape, and is fitted to the yoke fixing side 32b and the yoke fixing side 32b having the protrusions 32c for fixing the two yokes 34 in the circumferential direction. By the lighting holding unit 3
3 is divided into a holding portion fixing side 32a for fixing 3 in the axial direction. The yoke fixed side 32b
A male screw 32e is cut on the outer peripheral surface of the, and a female screw 32f is cut on the inner surface of the holding portion fixing side 32a. Further, a cutout hole 32d through which the illumination holding portion 33 can pass is formed in the bottom portion of the holding portion fixing side 32a.

The yoke 34 is composed of a cylindrical piece portion 34a and a disc piece portion 34b integrally formed on one side in the axial direction thereof. The disc piece portion 34b is the end surface 32 of the yoke fixing side 32b.
You can work on g. The magnet 5 and the magnet protection member 24 have the same shape as that shown in FIG. 15, and the cross section in the radial direction of the magnet 5 is formed in an oval shape.

The magnet 5 is provided on one surface of the magnet fixing member 35.
And a protrusion 35a capable of entering the gap between the magnet receiving member 6 and
Is formed, whereby the magnet 5 is fixed in the circumferential direction. Further, the illumination holding portion 33 is integrally formed on the other surface of the magnet fixing member 35. In addition,
The diameter of the magnet fixing member 35 is larger than that of the cutout hole 32d formed in the holding portion fixing side 32a.

Two yokes 34 are arranged at a predetermined position on the outer periphery of the magnet 5 to which the magnet protection member 24 is fitted to form a magnet base, and the magnet 5 in this state is attached to the magnet fixing member 35. At this time, the protrusion 35a of the magnet fixing member 35 is fitted in the gap between the magnet 5 and the magnet protection member 24. As a result, the magnet 5 is fixed in the circumferential direction, the magnet fixing member 35 in this state is fitted to the yoke fixing side 32b of the support member 32, and then the holding portion fixing side 32a is screwed to the yoke fixing side 32b. As shown in FIG. 18, the lighting fixture 31 is assembled.

The illumination receiver 31 thus constructed is
For example, by rotating the illumination holding unit 33 by 90 degrees in the circumferential direction with respect to the support member 32, it is possible to switch between the demagnetized state and the excited state of the magnet base. In addition,
This structure can also be applied to the article locking tool 26 and the panel holding tool 30.

In the first to third embodiments, the magnet forming the magnet base has only a circular cross section, but the shape is not limited to this, and the yoke surrounds the magnet. The shape of the magnet may be any shape as long as it surrounds and is relatively movable in the circumferential direction.

[0077]

As described above, according to the present invention, with the attracting surface of the magnet base oriented in any direction,
The magnet base can be supported by the support member. Further, since the magnetic body and the magnet base can be brought into close contact with each other, it is possible to prevent rattling. Also, by switching the magnet base to the excited state by the switching member provided on the magnet base, the attraction force of the magnet base to the magnetic body can be strengthened, and the magnetic body and the magnet base can be more firmly attached. You can Furthermore, by switching the magnet base to the demagnetized state by the switching member, it is possible to weaken the attraction force of the magnet base with respect to the magnetic body, and it is possible to easily separate the magnetic body from the magnet base. Therefore, by switching the magnet base between the excited state and the demagnetized state by the switching member provided on the magnet base, it is possible to increase or decrease the attraction force of the magnet base and to easily attach the magnetic body to the magnet base. Can be detached.

Further, the support member of the magnet base is fixed at a position corresponding to the opened door, and the magnetic member is provided at the door side position corresponding to the magnet base, so that the support member is fixed. At the open position, the detachment of the magnetic body and the magnet base, that is, the holding of the opened state of the door or the cancellation of the held state of the door can be performed by the lever that is the switching member. Further, when the magnetic body is provided at the lower position of the door, the switching member is a lever, so that the user can easily operate the lever with the tip or the back of the foot. Therefore, the user can easily switch between the demagnetized state and the excited state of the magnet base, that is, hold the door open or hold the door open without using a hand.

Further, the article holding member provided on the support member for supporting the magnet base can hold the article according to each purpose of use, and the magnetic material in various places suitable for using the article. Can be fixed by adsorption. Therefore, even if the article itself does not have the attachment / detachment means, it is possible to attach the attachment / detachment means to the article by holding the article by the article holding member.

Further, the magnet constituting the magnet base is formed in a plate shape, and the N pole and the S pole of this magnet are made to appear on the planar surface of the plate shape, and the yoke for demagnetizing and exciting the magnet is of this magnet. Since the magnet base is supported so as to be relatively movable in the circumferential direction, the main attraction surface of the magnet base can be a surface parallel to the flat surface of the plate. As a result, the magnet base can be made flat with respect to the magnetic body, and the overall weight and thickness of the magnet base can be reduced.

[Brief description of drawings]

FIG. 1 is a front sectional view showing a demagnetized state of a door stopper according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view from the front direction showing the excited state of the door stopper in FIG.

FIG. 3 is a side view of a door stopper.

4 is a cross-sectional view taken along the line AA in FIG.

5 is a cross-sectional view of the state shown in FIG.

FIG. 6 is a perspective view showing the shape of a switching portion that has a magnet, a magnet receiving member, and a lever that is a switching member, which constitutes a door stopper.

FIG. 7 is a diagram showing a principle of a magnetized state and a magnetized state of a magnet base used in the present invention.

FIG. 8 is a view showing a usage state of a door stopper.

FIG. 9A is a sectional view of a furniture having a door opening / closing stopper according to a second embodiment of the present invention in a demagnetized state, and FIG. 9B is a sectional view of the furniture in an excited state.

10A is a sectional view taken along the line BB in FIG. 9A, and FIG. 10B is a sectional view taken along the line CC in FIG. 9B.

FIG. 11 is a view showing a yoke in the magnet base of the door.

FIG. 12 is a perspective view showing a use state of furniture in a demagnetized state.

FIG. 13 is a perspective view showing a usage state of furniture in an excited state.

FIG. 14A is a front view of an illumination receiver according to a third embodiment of the present invention, and FIG. 14B is a side view of the illumination receiver.

15A is a sectional view taken along the line DD in FIG. 14A, and FIG. 15B is a diagram showing a demagnetized state of the magnet base shown in FIG. 15A.

16A is a perspective view showing an article locking tool that is another configuration example of the third embodiment, and FIG.
It is a panel holder which is different from (a) and is another configuration example of the third embodiment.

FIG. 17 is a perspective view showing the structure of an illumination receiver.

FIG. 18 is a perspective view showing a usage state of the illumination receiver.

[Explanation of symbols]

2 magnet base 3a lever 4 Support members

Claims (4)

[Claims] 1. A magnet base capable of switching between a demagnetized state and an excited state, a support member for supporting the magnet base, and a switching member attached to the magnet base and capable of switching between the demagnetized state and the excited state of the magnet base. And a magnetic body arranged at a position facing the attraction surface of the magnet base. 2. A magnet base support member is fixed at a position corresponding to an opened door, and a magnetic body is provided at the door side position corresponding to the magnet base. The magnet base is in a demagnetized state and an excited state. The magnet type detaching / attaching device according to claim 1, wherein the switching member that can switch between the two is a lever so that it serves as a door opening / closing stopper. 3. The magnet type detaching / attaching device according to claim 1, wherein the supporting member is provided with an article holding member. 4. A magnet constituting a magnet base is plate-shaped, and N pole and S pole of the magnet are made to appear on the planar surface of the plate, and a yoke for demagnetizing and exciting the magnet is the magnet. The magnet type desorption tool according to any one of claims 1 to 3, wherein the magnet type desorption tool surrounds the periphery of and is supported so as to be relatively movable in the circumferential direction.