JP4518124B2 - sliding door - Google Patents

Description

  The present invention relates to a sliding door.

  Since the conventional sliding door has a gap between the sliding door main body and the door frame provided around the sliding door main body, sufficient sealing performance cannot be secured. Therefore, a sealing member such as a packing is attached to the door contact surface of the door frame and the door frame contact surface of the sliding door body, and the gap between the sliding door body and the door frame is sealed by the sealing member.

  However, in the conventional sliding door, even if the sealing performance at the door contact surface of the door frame can be secured, if there is a backlash in the side direction of the sliding door, the airtightness of the entire sliding door cannot be secured. There is a problem. For this reason, sliding doors cannot be used for doors that require sound insulation performance. In addition, sliding doors could not be positively adopted for entrance doors that require airtightness to prevent intrusion of outside air.

  An object of this invention is to provide the sliding door which has sufficient airtightness for preventing sufficient sound insulation performance, intrusion, etc. of external air.

The sliding door according to the present invention has a sliding door main body and a side door frame provided around the side of the sliding door main body, and the sliding door main body is disposed around the side of the sliding door main body. 1st magnetic means, the said side door frame has 2nd magnetic means in the position corresponding to the said 1st magnetic means in the closed state of the said sliding door main body, and the said sliding door main body closes the said sliding door main body In the state, all or part of the sliding door body is biased toward the side door frame by the action of the first magnetic means and the second magnetic means attracting, and the first magnetic means is a permanent magnet. The second magnetic means is an electromagnet having an iron core, and the second magnetic means is energized so that the opposing surfaces of the first magnetic means and the second magnetic means are different from each other, The sliding door body is displaced to the side door frame, and the first magnetic hand is moved to the second magnetic means. After the first magnetic means is attracted to the second magnetic means, energization to the second magnetic means is stopped and the first magnetic means is attracted to the second magnetic means. And the second magnetic means is energized so that the opposing surfaces of the first magnetic means and the second magnetic means have the same polarity, and the sliding door body is opposite to the side door frame side. And the first magnetic means is pulled away from the second magnetic means.

According to the first aspect of the present invention, the closed state of the gap between the sliding door body and the side door frame can be maintained without continuing energization of the second magnetic means.

  Hereinafter, a first embodiment according to the present invention will be described in detail with reference to FIGS. 1 to 4. The sliding door 1 of this embodiment has a sliding door body 2 and a side door frame 3 provided around the side of the sliding door body 2, and the sliding door body 2 is disposed around the side of the sliding door body 2. The side door frame 3 has second magnetic means 31 at a position corresponding to the first magnetic means 21 in the closed state of the sliding door body 2, and the sliding door body 2 is In the closed state of the sliding door main body 2, all or part of the sliding door main body 2 is urged toward the side door frame 3 by the action of the first magnetic means 21 and the second magnetic means 31 attracting each other. .

  The sliding door 1 includes a sliding door body 2 that is a door that slides between the doorway 5 and the retaining wall 6, a side door frame 3 that is provided around the doorway 5, and a rail 4 that is provided above the sliding door body 2. And have. 1 and 2 show a state in which the sliding door 1 is viewed from the outside, FIG. 1 shows an open state of the sliding door 1, and FIG. 2 shows a closed state of the sliding door 1.

  The sliding door body 2 has four first magnetic means 21 and a handle 22 around the side of the inside of the sliding door body 2. The 1st magnetic means 21 is a magnetic body, and is an iron piece in this embodiment.

  The sliding door body 2 is suspended by suspension means 23 slidably supported on a rail 4 provided above the sliding door body 2. The suspension means 23 includes a pulley 231 that moves while rotating on the rail 4, and a displacement means 232 that is provided between the pulley 231 and the sliding door body 2. As shown in FIGS. 3 and 4, the displacement means 232 includes an upper member 232 a that supports the pulley 231, a lower member 232 e that is fixed to the upper portion of the sliding door body 2, an upper member 232 a, and a pin 232 b. The coupling member 232c is connected by a lower member 232e and a pin 232d. As shown in FIG. 4, the displacement means 232 enables the sliding door body 2 to be displaced toward the side door frame 3 when the sliding door body 2 is in the closed state.

  The side door frame 3 is provided around the doorway 5 and has second magnetic means 31 at positions corresponding to the first magnetic means 21 in the closed state of the sliding door body 2. The four second magnetic means 31 provided on the outside of the side door frame 3 are magnetic bodies, and are electromagnets in this embodiment. The second magnetic means 31 is magnetized by being energized when a switch (not shown) is pressed in the closed state of the sliding door main body 2, and the second magnetic means 31 attracts the first magnetic means 21 to cause the side door frame 3 to move to the side door frame 3. Energize to pull to the side. Further, around the outside of the side door frame 3, a sealing means 32, which is a belt-like elastic body, is provided for enhancing the airtightness of the sliding door body 2 in the closed state.

  In the present embodiment, the number of the first magnetic means 21 and the number of the second magnetic means 31 is four, but the number can be appropriately selected. Moreover, in this embodiment, although the side door frame 3 is frame shape, if there exists an effect of this invention, it will not be limited to such a shape. The design change items as described above are similarly applied to other embodiments described later.

  Hereinafter, the function and effect of this embodiment will be described.

  When the sliding door body 2 is moved from the opened state of FIG. 1 to the closed state of FIG. 2 and a switch (not shown) disposed near the sliding door 1 is pressed, the electromagnet as the second magnetic means 31 is energized. The In the closed state of the sliding door 1, the iron pieces as the first magnetic means 21 are positioned so as to face the second magnetic means 31, respectively. When the second magnetic means 31 becomes magnetized by the energization described above, the magnetism causes the first magnetic means 21 and the second magnetic means 31 to attract each other, and the entire sliding door body 2 is drawn toward the side door frame 3 side. (See FIGS. 3 and 4).

  When the sliding door body 2 is urged toward the side door frame 3, the joint member 232c of the displacement means 232 is connected to the upper member 232a and the lower member 232e by the pins 232b and 232d. Is displaced as shown in FIG. Accordingly, the entire position of the sliding door body 2 is displaced in parallel with the side door frame 3.

  Then, the sliding door body 2 is displaced so as to stick to the side door frame 3 by the action of the first magnetic means 21 and the second magnetic means 31 attracting each other. At this time, the sliding door body 2 and the side doors are sealed by the sealing means 32. The gap between the frame 3 is completely closed (see FIG. 4). Note that when the closed state of the sliding door 1 is released, the switch is operated again, and the power supply to the second magnetic means 31 is stopped.

  Although the 1st magnetic means 21 of this embodiment is an iron piece, it is not an iron piece but is changed into a neodymium magnet, and even if it does not continue with the electricity supply to the 2nd magnetic means 31, it is between the sliding door main body 2 and the side door frame 3. The closed state of the gap between them can be maintained. For example, the surface of the first magnetic means 21 that faces the second magnetic means 31 is the S pole, and the surface of the second magnetic means 31 that faces the first magnetic means 21 when energized is the N pole. It arrange | positions so that it may become. When the second magnetic means 31 is energized by the switch, the opposing surfaces of the first magnetic means 21 and the second magnetic means 31 are different from each other, so that the attractive force increases, and the sliding door body 2 is moved sideways. The first magnetic means 21 is attracted to the second magnetic means 31 by being displaced toward the door frame 3 side. And since the 1st magnetic means 21 is a neodymium magnet, it adsorb | sucks to the iron core (not shown) of the 2nd magnetic means 31 with the magnetic force. After the first magnetic means 21 is attracted to the second magnetic means 31 in this way, even if the energization of the second magnetic means 31 is stopped, this attracted state is maintained.

  In order to release the state in which the first magnetic means 21 is attracted to the second magnetic means 31 in order to open the sliding door body 2, the switch is operated again. This switch operation is to supply a current in the reverse direction to the second magnetic means 31, and is set so that the surface of the second magnetic means 31 facing the first magnetic means 21 is the S pole. Therefore, since the opposing surfaces of the first magnetic means 21 and the second magnetic means 31 have the same polarity, they repel each other and displace the sliding door body 2 in the opposite direction to the side door frame 3 side. For this reason, the 1st magnetic means 21 is pulled away from the 2nd magnetic means 31, and the said adsorption | suction state is cancelled | released.

  Next, a second embodiment according to the present invention will be described with reference to FIGS. In the description of the present embodiment, the same reference numerals are used for members having the same or similar functions as the members constituting the sliding door 1 of the first embodiment.

  The sliding door 1 of the first embodiment is urged so that the whole or part of the sliding door body 2 is drawn toward the side door frame 3 by the action of the first magnetic means 21 and the second magnetic means 31 attracting each other. Although the sliding door 1a of this embodiment is characterized by the action which the 1st magnetic means 21a and the 2nd magnetic means 31a repel, all or one part of the sliding door main body 2 is the 2nd side door frame 3b. It is biased so as to be pressed to the side.

  The sliding door 1a of the present embodiment includes a first side door frame 3a provided around one side of the sliding door body 2 and a second side door provided around the other side of the sliding door body 2. The sliding door body 2 has a frame 3b (located at the same position as the side door frame 3 in the first embodiment), and the sliding door body 2 is disposed around the side of the sliding door body 2. The first side door frame 3a has second magnetic means 31a at a position corresponding to the first magnetic means 21a in the closed state of the sliding door body 2. In the present embodiment, the first magnetic means 21a is a neodymium magnet, and the second magnetic means 31a is an electromagnet. The first magnetic means 21a has an N pole on the surface facing the second magnetic means 31a.

  As shown in FIGS. 6 and 7, when the sliding door body 2 is moved to the closed state and a switch (not shown) disposed near the sliding door 1 is pressed, the electromagnet as the second magnetic means 31a is energized. The side facing the first magnetic means 21a is magnetized to the N pole. Since the first magnetic means 21a has an N pole on the side facing the second magnetic means 31a, the first magnetic means 21a and the second magnetic means 31a are repelled when the second magnetic means 31a is magnetized. The entire sliding door body 2 is biased so as to be pressed toward the second side door frame 3b. In this embodiment, the functions and operations of the sealing means 32 and the displacement means 232 are the same as those in the first embodiment. Further, when releasing the closed state of the sliding door 1a, the switch is operated again, and the power supply to the second magnetic means 31 is stopped.

  In the first embodiment and the second embodiment, the second magnetic means 31 (31a in the second embodiment) is an electromagnet, but the first magnetic means 21 (21a in the second embodiment) is an electromagnet. It is also possible. In this case, the second magnetic means 31 of the first embodiment is an iron piece or a neodymium magnet, and the second magnetic means 31a of the second embodiment is a neodymium magnet. Moreover, these neodymium magnets are examples of permanent magnets, and any type of permanent magnets can be used as long as they are permanent magnets.

  Moreover, in the said 1st Embodiment and 2nd Embodiment, although all the sliding door main bodies 2 are urged | biased to the side door frame 3 side (2nd side door frame side 3b in 2nd Embodiment), a sliding door main body May be urged toward the side door frame. For example, the sliding door 1b shown in FIGS. 8 and 9 is provided with the first magnetic means 21b only on the right side of the sliding door main body 2, and in the closed state of the sliding door main body 2, the first magnetic means 21b is located at a position corresponding to the first magnetic means 21b. Two magnetic means 31b are provided on the side door frame 3c. In the case of this sliding door 1b, the gap between the right side of the sliding door body 2 and the side door frame 3c is only closed, but in such an embodiment, the space between the sliding door body and the side door frame is also limited. This gap can be partially eliminated.

  In each of the above embodiments, the first magnetic means and the second magnetic means are attracted so that an incomplete locking function can be exhibited. This incomplete locking function means that the first magnetic means and the second magnetic means are adsorbed in the closed state of the sliding door, so that the sliding door main body is opened although it is not mechanically locked like the locking device. This means that a large force is required to peel off the first magnetic means and the second magnetic means. For example, when the sliding door according to the present invention is adopted as a sliding door such as a toilet, the first magnetic means and the second magnetic device can be obtained by operating the sliding door body with a strong force when the user loses his or her mind due to stroke or the like inside the toilet. Even in a state where the magnetic means is adsorbed, it is possible to peel off the adsorption of both means and open the sliding door main body. On the other hand, since a large force is required to open the sliding door body in normal times, the same effect as the locking device can be exhibited.

  In each of the above embodiments, the current supply to the first magnetic means and the second magnetic means, the stop, or the reverse current supply need not necessarily be performed by a switch operation. It can be linked with the position sensor means for detecting the position of the sliding door body, the locking device for the sliding door, or the current supply is performed by the timer means when a predetermined time has passed since the sliding door is closed. Control is also possible.

It is a front view which shows the open state of the sliding door 1 which concerns on 1st Embodiment of this invention. It is a front view which shows the closed state of the sliding door 1 shown in FIG. It is side sectional explanatory drawing of the sliding door 1 shown in FIG. It is a sectional side view of the sliding door 1 shown in FIG. 1, and the state which the sliding door main body 2 displaced to the side door frame 3 side is shown. It is a front view which shows the open state of the sliding door 1a which concerns on 1st Embodiment of this invention. It is side sectional explanatory drawing of the sliding door 1a shown in FIG. It is a sectional side view of the sliding door 1a shown in FIG. 5, and the state which the sliding door main body 2 displaced to the 2nd side door frame 3b side is shown. It is a front view which shows the open state of the sliding door 1b which concerns on other embodiment of this invention. It is a front view which shows the closed state of the sliding door 1b shown in FIG.

1, 1a, 1b Sliding door 2 Sliding door body 21, 21a, 21b First magnetic means 22 Handle 23 Suspension means 231 Pulley 232 Displacement means 232a Upper member 232b, 232d Pin 232c Joint member 232e Lower member 3, 3c Side door frame 3a First 1 side door frame 3b 2nd side door frame 31, 31a, 31b 2nd magnetic means 32 Sealing means 4 Rail 5 Door 6 Locking wall

Claims (1)

A sliding door main body, and a side door frame provided around the side of the sliding door main body,
The sliding door main body has first magnetic means disposed around the side of the sliding door main body,
The side door frame has second magnetic means at a position corresponding to the first magnetic means in the closed state of the sliding door body,
In the closed state of the sliding door body, all or part of the sliding door body is urged toward the side door frame by the action of the first magnetic means and the second magnetic means being attracted,
The first magnetic means is a permanent magnet;
The second magnetic means is an electromagnet having an iron core;
The second magnetic means is energized such that the opposing surfaces of the first magnetic means and the second magnetic means have different polarities, the sliding door body is displaced to the side door frame, and the second The first magnetic means is attracted to the magnetic means;
After the first magnetic means is attracted to the second magnetic means, the energization to the second magnetic means is stopped, and the first magnetic means is attracted to the second magnetic means,
The second magnetic means is energized so that the opposing surfaces of the first magnetic means and the second magnetic means have the same polarity, and the sliding door body is displaced to the side opposite to the side door frame side. The sliding door is characterized in that the first magnetic means is separated from the second magnetic means.

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