JP5385868B2 - Door-to-door equipment - Google Patents

Description

  The present invention relates to a door stop device that holds a door in a set open position.

  In a conventional door stop device, the door is adsorbed and held at a set open position by a magnetic force between the casing that can be fixed to the door and a door stop that is at least partially fixed from the floor. A cylindrical movable member that can move up and down with a magnet that can be moved, and a compression coil spring that moves and urges the movable member to the raised standby position are assembled.

  Further, at the door open position, the lower end surface of the movable member that moves downward by magnetic force against the urging force of the compression coil spring is attracted to the door contact body adsorbing surface, and the door is moved to the door open position. A main protrusion with a large protrusion amount that sometimes contacts the lower end portion of the movable member to prevent further movement of the door, and a small protrusion amount that holds the lower end portion of the movable member at the set opening position between the main protrusion. The auxiliary projection is formed integrally.

  The auxiliary projection includes a first cam surface that abuts the lower end of the movable member when the door is moved to the set opening position and lifts the movable member against magnetic force, and a door closing position at the setting opening position. And a second cam surface that abuts the lower end of the movable member during the movement to raise the movable member against a magnetic force (see Patent Document 1).

Utility Model Registration No. 3118176 JP 2001-254560 A JP 2002-147093 A

  In the conventional door stop device, the lower end portion of the movable member that moves downward by magnetic force against the biasing force of the compression coil spring when the door is operated to the set opening position is formed on the adsorption surface of the door stop body. When the auxiliary protrusion passes along with the contact with the first cam surface, and then the lower end of the movable member contacts the main protrusion formed on the suction surface of the door-to-door body, A lower end portion of the movable member is held at a set opening position between the main protrusion and the auxiliary protrusion.

  Therefore, the surface area and height of the door contact member on the floor surface side can be reduced as compared with Patent Documents 2, 3 and the like in which the movable member is provided on the floor surface side, and the inhibition of the landscape on the floor surface is suppressed. In addition, when the door is closed, it is possible to prevent other objects from being caught by the floor side door contact portion.

  However, the auxiliary projection formed on the suction surface of the door-contacting body abuts against the lower end of the movable member when the door is moved to the closed position at the set opening position, and resists the movable member against the magnetic force. Since the second cam surface to be raised is formed, there is an inconvenience that the lower end portion of the movable member easily passes through the auxiliary projection and closes when an external force to the closing side acts on the door at the set opening position. is there.

  Therefore, in order to hold the door firmly at the set opening position, it is necessary to provide a separate locking mechanism for locking and holding the door at the setting opening position between the door and a fixed part such as a floor. In addition to being complicated, it requires a lot of labor for installation, and there is a problem that the manufacturing cost increases.

  The present invention has been made in view of the above-mentioned actual situation, and its main problem is that the door can be securely and firmly held at the set open position, while the structure is simplified and the number of mounting steps is reduced. It is in the point which provides the door stop apparatus which can aim at reduction of this.

  A first characteristic configuration according to the present invention is that a door is set by a magnetic force between a casing that can be fixed to a door and a door-to-door body that is at least partially fixed to a floor surface and is made of a magnetic material or a magnet. Assembling a movable member that can move up and down and rotate, provided with a magnet or a magnetic body that can be attracted and held in the open position, and a biasing body that moves and biases the movable member to the raised standby position; The movable member includes a door contact state that abuts on a side surface of the door stop body when the movable member is closed to a door closing position by a rotation operation of the movable member, and from both sides of the door stop body in the opening and closing direction. The contact portion is provided so as to be switched to a locked state in which the door is brought into contact with or close to the door in the set open position.

  According to the above configuration, when the door is operated to the set open position, the magnet or magnetic body provided on the movable member on the casing side fixed to the door is magnetically moved as it approaches the door-side body on the floor surface side. When the movable member is lowered by the attractive force and the contact portion of the door contact state provided on the movable member contacts the side surface of the door contact body, the magnet or magnetic body of the movable member is the upper surface of the door contact body. It is adsorbed at the set adsorption position at.

  In addition, when it is necessary to hold the door firmly in the set open position, by rotating the movable member and switching the contact portion in the door contact state to the locked state, The door can be locked and held at the set open position with the contact portion coming into contact with or close to the side surface from both sides in the opening and closing direction.

  Further, by rotating the movable member to switch the contact portion in the locked state to the door contact state, in this door contact state, the contact portion of the movable member is a door with respect to the front side surface of the door contact body. The door can be freely closed to the door closing position because it is only in contact with or close to the closing position.

  Therefore, the movable member provided with the magnet or the magnetic body can be moved up and down and rotated with respect to the casing, and the movable member only has a contact portion that can be switched between the door contact state and the lock state. While the door can be securely and firmly held at the set opening position, the structure can be simplified, the number of mounting steps can be reduced, and the manufacturing cost can be reduced.

  A second characteristic configuration according to the present invention is that the contact portion or the movable member is provided with a rotating operation body for switching the contact portion between a door stop state and a locked state.

  According to the above configuration, the contact portion can be easily switched between the door stop state and the locked state by the rotating operation body provided on the contact portion or the movable member.

  According to a third characteristic configuration of the present invention, when the door moves to the closing side due to a reaction when the contact portion in the door contact state comes into contact with the front side surface of the door contact body, A frictional resistance imparting body that imparts frictional resistance by sliding contact with the body is provided.

  According to the above configuration, when the door is strongly opened to the set opening position side, the door is closed by a reaction when the contact portion in the door contact state contacts (collises) with the side surface on the front side of the door contact body. At this time, the frictional resistance due to the sliding contact between the frictional resistance applying body and the door-to-door body can be applied as a braking force against the closing movement of the door. Can be held in.

  According to a fourth characteristic configuration of the present invention, the main part of the tension coil spring constituting the biasing body is arranged in the hollow part of the movable member configured in a cylindrical shape, and the upper end part of the tension coil spring is It is attached to the upper latching shaft installed in the casing, and the lower end portion of the tension coil spring is attached to the lower latching shaft installed in the hollow portion of the movable member.

  According to the above configuration, since the main part of the tension coil spring can be accommodated using the hollow part of the movable member configured in a cylindrical shape, for example, the inner peripheral surface of the casing and the outer peripheral surface of the movable member Compared to the case where a coil spring is provided between them, the door stop device can be made more compact.

  According to a fifth characteristic configuration of the present invention, the frictional resistance imparting body abuts against the side surface on the rear side of the door-stopping body when the contact portion in the door-contacting state abuts on the side surface on the front side of the door-stopping body. It is in the point which is comprised in the movable member in the state which adjoined, and is comprised from the resistance provision protrusion which can pass the upper surface of a door stop body in a sliding contact state with the forced opening operation of a door.

  According to the above configuration, when the door is strongly opened to the set opening position side, the door is closed by a reaction when the contact portion in the door contact state contacts (collises) with the side surface on the front side of the door contact body. At this time, since the movable member is provided with a resistance imparting protrusion of the frictional resistance imparting body in a state of being in contact with or close to the side surface on the rear side of the door contact body, this resistance imparting is provided. Since the frictional resistance due to the sliding contact between the protrusion and the door contact body can be applied as a braking force against the door closing movement, the door can be reliably held at the set open position.

  Therefore, since only the resistance imparting protrusion is provided on the movable member, the frictional resistance imparting body can be advantageously configured in terms of structure and cost.

The perspective view at the time of the door opening operation start which shows the door stop apparatus of 1st Embodiment of this invention, and the opening operation completion | finish The disassembled perspective view of the door stop apparatus of 1st Embodiment Exploded sectional view of the door stop device of the first embodiment Sectional drawing at the time of the assembly | attachment of the door stop apparatus of 1st Embodiment VV line sectional view of FIG. Sectional view taken along line VI-VI in FIG. Horizontal sectional view and longitudinal sectional view when the door approaches the set opening position in the first embodiment Horizontal sectional view and vertical sectional view when the door reaches the set opening position in the first embodiment Horizontal sectional view and longitudinal sectional view when the movable member is switched to the locked state in the first embodiment The perspective view at the time of the opening operation start of the door which shows the door stop apparatus of 2nd Embodiment of this invention, and the completion of opening operation The disassembled perspective view of the door stop apparatus of 2nd Embodiment Exploded sectional view of the door stop device of the second embodiment Sectional drawing at the time of the assembly | attachment of the door stop apparatus of 2nd Embodiment XIV-XIV line sectional view of FIG. XV-XV sectional view of FIG. Horizontal sectional view and longitudinal sectional view when the door approaches the set opening position in the second embodiment Horizontal sectional view and vertical sectional view when the door reaches the set opening position in the second embodiment Horizontal sectional view and longitudinal sectional view when the movable member is switched to the locked state in the second embodiment

[First Embodiment]
1 to 9 show a door stop device for a door 1 that is swingably opened and closed around a longitudinal axis through a hinge at an opening of a building. A synthetic resin (for example, ABS) that can be fixed to the door 1 is shown. ) Casing 2 and a door stop 3 composed of a ferromagnetic material 3A at least partially fixed to the floor surface FL. A movable member 5 made of a synthetic resin (for example, POM) that can be moved up and down and rotated around the lifting axis through the mounting space S penetrating in the direction, and a biasing body that moves and urges the movable member 5 to the raised standby position A tension coil spring 6 that is an example of the above is assembled.

  At the lower end of the movable member 5, as shown in FIG. 4, a cylindrical permanent magnet capable of attracting and holding the door 1 at a set open position by a magnetic force between the door stop 3 and the ferromagnetic body 3A. 7 to 9, the movable member 5 is a door that comes into contact with the side surface of the door-contacting body 3 when the movable member 5 is closed to the door closing position by the turning operation of the movable member 5, as shown in FIGS. 7 to 9. A contact portion 8 is provided that can be switched between a contact state and a locked state in which the door 1 is brought into contact with or close to the side surface of the door stop body 3 in both the opening and closing directions and locked in the set open position. .

  When the door moves to the closing side due to the reaction when the contact portion 8 in the door contact state abuts against the side surface 3a on the front side of the door contact body 3, the movable member 5 slides against the door contact body 3. A frictional resistance imparting body 9 that imparts frictional resistance by contact is provided.

  As shown in FIGS. 3 and 4, the door-contact body 3 includes an annular ferromagnetic body (magnetic body) 3 </ b> A formed through a mounting hole 3 </ b> C that is a mounting portion to the floor surface FL, and the strong body 3 </ b> A. A cover 3B made of a synthetic resin (for example, PVC) is fitted to the magnetic body 3A from above, and the mounting hole 3C is formed in a tapered surface along the head of the countersunk screw 11. Further, on the bottom surface side of the outer peripheral surface of the ferromagnetic body 3A, an annular engagement protrusion 3b formed at the lower end of the inner peripheral surface of the cover 3B and projecting radially inward is detachably elastically engaged. An engaging recess 3a is formed.

  As shown in FIGS. 2 to 6, the casing 2 is formed in a cylindrical case portion 2 </ b> A having a cylindrical inner peripheral surface 2 a that slides and guides the movable member 5 so as to move up and down and rotate around a lifting axis. A pair of left and right decorative cover portions 2B constituting a semi-elliptical or partially elliptical outer surface with a part of the arc-shaped outer surface of the cylindrical case portion 2A, and a mounting plane passing through the front end surfaces of the two decorative cover portions 2B A pair of leg portions 2C extending from both sides of the cylindrical case portion 2A are integrally formed, and at the two upper and lower portions of the two decorative cover portions 2B, as shown in FIG. A mounting recess 2D having a mounting piece 2d formed by penetrating a mounting hole 2b for screwing to the side surface is formed.

  The bottom portion of the outer peripheral surface of the cylindrical case portion 2A, the front end surfaces of both decorative cover portions 2B, the front end surfaces of both leg portions 2C, and the bottom surface of the mounting piece 2d can be simultaneously applied to the back surface of the door 1 (side surface on the indoor side). Arranged on the same mounting plane.

  As shown in FIG. 3, among the mounting holes 2b of the mounting recess 2D, the left and right mounting holes 2b located on the upper side are formed in a perfect circle, and the left and right mounting holes 2b are positioned in the vertical direction. It is formed in a long hole whose mounting position can be adjusted.

  As shown in FIGS. 2, 3, and 5, the upper half of the inner peripheral surface 2a of the cylindrical case portion 2A is composed of a plurality of ribs 2e provided at predetermined intervals in the circumferential direction. 2 and the deformation at the time of molding are suppressed, and among the ribs 2e, the tension coil springs are disposed above the adjacent ribs 2e located on both sides of the center line perpendicular to the mounting plane passing through the lifting axis. A bearing recess 2f is formed for latching and supporting both end portions of the upper latching shaft 12 for latching the upper latching portion 6a of the 6 so as to be detachable from above.

  As shown in FIGS. 3 and 6, a pair of protrusions 5e described later formed on the outer peripheral surface of the movable member 5 are engaged with the lower half of the inner peripheral surface 2a of the cylindrical case portion 2A. Thus, the rotation range (rotation angle) of the movable member 5 is restricted to 90 degrees, in other words, the door operation position where the contact portion 8 reveals the door contact state and the lock operation position where the lock state appears. A rotation restricting groove 2g for restricting to a rotation range that can be switched to is formed.

  Both protrusions are engaged with one side surface of both protrusions 5e of the movable member 5 at the door operation position of the rotation restricting groove 2g and the other side surface of both protrusions 5e of the movable member 5 at the lock operation position. An operation position restricting projection 2h for temporary fixing with a small projecting margin that restricts the disengagement movement of 5e is integrally formed so as to allow passage of both protrusions 5e by a forced rotation operation of the movable member 5.

  As shown in FIGS. 2 to 6, the movable member 5 is formed with a cylindrical hollow portion S <b> 1 having a length capable of accommodating the entire permanent magnet 7 and the main portion of the tension coil spring 6. A flange-shaped receiving portion 5b for receiving the lower end surface of the permanent magnet 7 inserted from above is integrally formed at the lower end of the inner peripheral surface 5a, and a magnet mounting region on the inner peripheral surface 5a of the movable member 5 The presser protrusions 5c having a small protrusion allowance to prevent the permanent magnet 7 received by the hook-shaped receiving part 5b from moving upward are provided at a plurality of positions in the circumferential direction of the upper end of the permanent magnet 7. It is integrally formed so as to allow passage movement by pushing.

  As shown in FIGS. 2 and 3, a lower latching shaft 13 capable of latching the lower latching portion 6 b of the tension coil spring 6 is attached to the lower end portion of the spring mounting region of the movable member 5. Bearing holes 5d that support both end portions are formed so as to penetrate therethrough, and a width slightly larger than the diameter of the bearing holes 5d is formed on the outer peripheral surface of the movable member 5 from the position where both bearing holes 5d are formed to the lower end. The protrusion 5e protruding outward in the radial direction is integrally formed.

  2 and 3, the lower end of the movable member 5 is fitted in an annular groove 2i formed at the lower end of the inner peripheral surface 2a of the cylindrical case 2A of the casing 2 so as to be able to rotate and move up and down. A flange portion 5f having an ascending position restriction function is integrally formed.

  As shown in FIGS. 7 to 9, the contact portion 8 is formed in a semicircular arc shape having an arcuate contact surface 8 a having a slightly larger diameter than the outer diameter of the door stop body 3, and the lower end portion of the movable member 5. Is integrally formed with the flange 5f.

  As shown in FIGS. 1 to 3, the contact portion 8 can be rotated along the arcuate outer surface of the cylindrical case portion 2 </ b> A while bypassing the lower end portion of the cylindrical case portion 2 </ b> A of the casing 2. The pivoting operation body 14 projecting radially outward is integrally formed, and the pivoting operation body 14 is configured to switch the abutting portion 8 between a door stop state and a locked state. Yes.

  Between the rotating operation body 14 and the contact portion 8, a recess 15 is formed in which the lower end portion of the cylindrical case portion 2A of the casing 2 is relatively rotatable. It is formed in a tapered shape that becomes narrower at the tip side (radially outward side) that can be easily picked with a fingertip, and further opens downward in the rotating operation body 14 for weight reduction and prevention of shrinkage at the time of molding. A hollow portion 14a is formed.

  As shown in FIGS. 2 to 4, the upper end portion of the cylindrical case portion 2 </ b> A of the casing 2 is formed on the upper end surface of the cylindrical case portion 2 </ b> A and the cylindrical portion 16 a that fits the inner peripheral surface 2 a of the cylindrical case portion 2 </ b> A. A synthetic resin (for example, ABS) cap 16 including an upper lid portion 16b fitted into the circular recess 2j is detachably mounted.

  The cylindrical portion 16a of the cap 16 is covered from above with respect to both end portions of the upper latching shaft 12 that is latched and supported by the bearing recess 2f of the cylindrical case portion 2A, and above the upper latching shaft 12. A semi-oval cutout portion 16c that prevents the movement of the movable member 5 is formed, and a vent hole 16d that allows a gas flow when the movable member 5 is raised and lowered is formed in the upper lid portion 16b. .

  As shown in FIGS. 7 and 8, the frictional resistance imparting body 9 has a side surface on the rear side of the door contact body 3 when the contact portion 8 in the door contact state comes into contact with the side surface on the front side of the door contact body 3. A resistance-applying projection with a small projecting margin that is in contact with or close to the door 1 and that can pass through the upper surface of the door-contacting body 3 in a sliding contact state as the door 1 is forcibly opened. It is formed integrally with the part 5f.

  When the door 1 is strongly opened to the set opening position side, the door 1 is closed by a reaction when the contact portion 8 in the door contact state comes into contact (collision) with the side surface on the front side of the door contact body 3. At this time, the permanent magnet 7 of the movable member 5 and the door stop 3 are brought into contact with or slidably contacted with the resistance applying protrusion 9 integrally formed with the movable member 5 and the door stop 3 at this time. While the movable member 5 is lifted against the attracting force with the ferromagnetic body (magnetic body) 3A, the frictional resistance caused by the sliding contact between the resistance applying projection 9 and the door-to-door body 3 is used as a braking force against the closing movement of the door 1. Therefore, the door 1 can be reliably held at the set opening position.

[Second Embodiment]
In the first embodiment described above, the casing 2 of the door stop device is attached in contact with the surface of the door 1 on the open side. However, as shown in FIGS. Alternatively, the casing 2 of the door stop device may be embedded.

  As shown in FIGS. 10 to 14, the casing 2 includes a cylindrical inner peripheral surface 2 a that slides and guides the movable member 5 so that the movable member 5 can move up and down and rotate around a lifting axis, and the door 1. A mounting plate portion 2E having a mounting hole 2k for screwing to the lower end surface of the door 1 is integrally formed at the lower end of the cylindrical case portion 2A that can be inserted and mounted in the mounting hole 1A formed at the lower end of the door. Has been.

  As shown in FIGS. 11 to 15, both ends of the upper latching shaft 12 for latching the upper latching portion 6 a of the tension coil spring 6 are viewed from above on the upper end portion of the inner peripheral surface 2 a of the cylindrical case portion 2 </ b> A. A bearing recess 2f for detachably engaging and supporting is formed, and a pair of protrusions formed on the outer peripheral surface of the movable member 5 are formed in the lower half of the inner peripheral surface 2a of the cylindrical case portion 2A. The protrusion 5e engages to restrict the rotation range (rotation angle) of the movable member 5 to 90 degrees, in other words, the contact portion 8 that can be in contact with the side surface of the door contact body 3 is in the door contact state. A rotation restricting groove 2g is formed for restricting a rotation range that can be switched between a door operation position that exposes the door and a lock operation position that exposes the locked state.

  Both protrusions are engaged with one side surface of both protrusions 5e of the movable member 5 at the door operation position of the rotation restricting groove 2g and the other side surface of both protrusions 5e of the movable member 5 at the lock operation position. An operation position restricting projection 2h for temporary fixing with a small projecting margin that restricts the disengagement movement of 5e is integrally formed so as to allow passage of both protrusions 5e by a forced rotation operation of the movable member 5.

  The movable member 5 has a configuration in which the distance between the contact portion 8 and the knob portion of the rotary operation body 14 is increased by being embedded in the door 1, and other configurations and functions are the movable members described in the first embodiment. Same as 5.

As shown in FIGS. 11 to 13, the cap 16 is configured to be externally fitted to the upper end portion of the cylindrical case portion 2 </ b> A of the casing 2, and thus the notch portion of the cap 16 described in the first embodiment. 16c does not exist.
In addition, since the other structure is the same as the structure demonstrated in 1st Embodiment, the same number is attached to the same structure location as 1st Embodiment, and the description is abbreviate | omitted.

[Other Embodiments]
(1) In the first embodiment described above, the magnetic body 3A is provided on the door stop body 3 and the magnet 7 is provided on the movable member 5 side. However, the magnet 7 is provided on the door stop body 3 and the movable member is provided. The magnetic body 3A may be provided on the 5 side.
Furthermore, a magnet 7 may be provided on the door stop 3 and a magnet 7 may be provided on the movable member 5.

  (2) In the first embodiment described above, the door contact body 3 is formed with respect to the ferromagnetic body 3A in which the mounting hole 3C that is the mounting portion to the floor surface FL is formed, and the ferromagnetic body 3A. The cover 3B is made of a synthetic resin fitted from above, but may be formed of only a ferromagnetic body having a mounting portion to the floor surface FL.

  (3) In the above-described first embodiment, by restricting the rotation range (rotation angle) of the movable member 5 to 90 degrees, the contact portion 8 is set to a door operation position where the door contact state appears. Although the lock operation position can be switched to the lock operation position, the rotation range of the movable member 5 can be set to an arbitrary angle range as long as it can be switched between the door stop state and the lock state.

(4) In the first embodiment described above, the contact portion 8 is formed in a semicircular arc shape having an arcuate contact surface 8a having a slightly larger diameter than the outer diameter of the door stop body 3, but the contact portion 8 is You may comprise a U shape or V shape etc. in horizontal cross sectional view.
In short, as the contact portion 8, the door contact state that abuts against the side surface of the door stop body 3 when the movable member 5 is rotated to the door closing position and the side surface of the door contact body 3. Any form may be used as long as the door 1 can be switched to a locked state in which the door 1 is locked and held at the set open position by contacting or approaching from both directions of the opening / closing direction.

  (5) In the first embodiment described above, the rotating operation body 14 for switching the contact portion 8 between the door contact state and the locked state is provided in the contact portion 8. 5 may be provided.

(6) In the first embodiment described above, the frictional resistance imparting body 9 is composed of a resistance imparting protrusion made of a resin having a small projecting margin formed integrally with the flange 5f at the lower end of the movable member 5, but rubber. You may comprise from elastic bodies, such as a leaf | plate spring, etc.
Furthermore, the frictional resistance applying body 9 such as the elastic body or the leaf spring may be provided on the door-stopping body 3 side in a state in which the frictional resistance is applied by sliding contact with the movable member 5.

FL Floor surface S1 Hollow part 1 Door 2 Casing 3 Door contact body 3A Magnetic body (ferromagnetic body)
5 Movable member 6 Energizing body (tensile coil spring)
7 Magnet (permanent magnet)
8 Contact 9 Friction resistance imparting body (resistance imparting protrusion)
12 Upper latching shaft 13 Lower latching shaft 14 Rotating operation body

Claims (5)

  It is possible to adsorb and hold the door at a set open position by a magnetic force between the casing that can be fixed to the door and at least a part of the door that is fixed to the floor and is made of a magnetic material or magnet. A movable member having a magnet or a magnetic body that can be moved up and down and rotated and an urging body that moves and urges the movable member to the standby position where the movable member is lifted are assembled. The door is in contact with the side surface of the door stop body when the door is moved to the door closing position by a moving operation, and the door is set to open in contact with or close to the side surface of the door stop body from both sides in the opening / closing direction. The door stop apparatus provided with the contact | abutting part switched to the locked state latched and hold | maintained in a position.   The door stop device according to claim 1, wherein the contact portion or the movable member is provided with a rotating operation body that switches the contact portion between a door stop state and a locked state.   The movable member has a frictional resistance due to sliding contact with the door contact body when the door moves to the closed side due to a reaction when the contact portion in the door contact state contacts the front side surface of the door stop body. The door stop apparatus of Claim 1 or Claim 2 with which the frictional resistance provision body to provide is provided.   The main part of the tension coil spring constituting the biasing body is disposed in the hollow part of the movable member having a cylindrical shape, and the upper end part of the tension coil spring is connected to the upper latching shaft laid on the casing. The door stop apparatus of any one of Claims 1-3 attached and the lower end part of the said tension coil spring being attached to the lower side latching shaft constructed in the hollow part of the said movable member.   When the frictional resistance imparting body comes into contact with the front side surface of the door-contacting body when the contact portion in the door-contacting state is in contact with or close to the rear side surface of the door-contacting body, and the door is forcibly opened The door stop device according to claim 3, wherein the door stop device includes a resistance imparting protrusion that can pass through the upper surface of the door stop body in a sliding contact state.

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