JP2010281179A - Door stop device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate the miniaturization of a door stop member which is the advantage of a door side movable type, and surely hold a door in a predetermined opening position. <P>SOLUTION: A casing 2 fixable to the door 1 is equipped with a movable member 5 which can freely move up and down and has a magnet 7 or a magnetic body capable of sucking and holding the door 1 in the predetermined opening position by magnetic force generated with a door stop body 3 wherein at least one portion fixed to a floor surface FL is configured with a magnetic body 3A or a magnet, and is equipped with a bias body 6 which moves and biases the movable member 5 toward an elevated waiting position. In a rear portion on the side of a door closing position of a door opening and closing direction in the movable member, a rear abutting part is provided which abuts on the side surface of the door stop body when the door is moved to the predetermined opening position. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

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

As the door stop device, there are a floor-side movable type in which a movable member is provided on the floor side and a door-side movable type in which a movable member is provided on the door side.
As an example of a floor-side operation type door stop device, for example, as shown in Patent Document 1, a base member in which a plurality of mounting holes for screwing to a floor surface and an accommodating recess for a movable member are formed And a floor-side door stop portion composed of a movable member that can be switched between a horizontal standby posture and an upright locking posture housed in the housing recess by swinging around a horizontal axis provided on the base member. In the case of being embedded and fixed in a recess formed in the lower end surface of the door or fixed to the side surface of the door, a magnet that attracts and erects the movable member is tilted with a movable member whose adsorbing surface is oscillating upright. It forms in the state which becomes parallel to an angle, and comprises the door side door stop part.

  Moreover, when an example of a door side movable type door stop device is given, for example, as shown in Patent Document 2, a casing that can be fixed to a door is connected to an engagement recess of a door stop member fixed to a floor surface. An engagement pin that can be engaged from above and a compression coil spring that moves and urges the engagement pin to an engagement standby position that protrudes downward from the upper surface of the door stop member are provided. When the door is moved to the set opening position, it comes into contact with the lower end position of the engagement pin and moves up the engagement pin against the elastic urging force of the compression coil spring while moving up and guiding the engagement into the engagement recess. A transfer guide inclined surface is formed.

JP 2002-147093 A JP2008-184897

However, in the case of a floor-side operation type door-to-door device, a relatively large receiving recess for pivotally mounting a movable member longer than the standing height is formed at the center of the base member. Since it is necessary to secure a space for forming a plurality of mounting holes for screwing the base member to the floor surface around the housing recess, the surface area of the base member is increased, and the movable member is pivoted. Since the bearing structure for wearing is assembled, the thickness of the base material portion is also increased.
Therefore, the floor side door contact portion is bulky in a wide area of the floor surface, and not only the floor landscape is obstructed, but also when the door is closed, there is an inconvenience that other objects are easily caught on the floor side door contact portion. is there.

In the case of a door-side movable type door stop device, since there is no movable member on the floor side, the surface area and height of the floor-side door stop member can be made smaller than the floor-side operation type. .
However, an engagement recess having a slightly larger diameter than the engagement pin provided in the casing is formed at the center of the door stop member, and the engagement pin is connected to the compression coil spring around the engagement recess. Since it is necessary to form an inclined guide surface having a rising slope for moving and guiding into the engaging recess while being raised against the elastic urging force, the outer diameter of the door stop member could not be reduced so much.

  Further, when the door is opened to the set opening position, the engagement pin provided on the door side casing engages with the engagement recess of the door contact member on the floor side, so that the door is not fixedly operated. In some cases, there is inconvenience that the engagement pin must be disengaged each time.

  The present invention has been made in view of the above-described actual situation, and its main problem is that it is possible to promote downsizing of the door-holding member, which is an advantage of the door-side movable type, and the door is set to the open position. It is in the point which provides the door stop apparatus which can be hold | maintained reliably by.

  The first characteristic configuration of the door stop device of the present invention is a magnetic force between the casing that can be fixed to the door and the door stop that is at least partially fixed to the floor and is made of a magnetic material or magnet. Assembling a movable member that can move up and down with a magnet or a magnetic body capable of attracting and holding the door at the set open position, and an urging body that urges the movable member to move to the raised standby position, A rear contact portion that comes into contact with the side surface of the door contact body when the door is moved to the set opening position is provided at a rear portion of the movable member on the door closing position side in the door opening / closing direction.

  According to the above configuration, when the door is operated to open, the magnet or magnetic body provided on the movable member on the casing side fixed to the door moves closer to the door-side body on the floor side, and the magnet's adsorption force When the movable member is lowered and the rear contact portion provided at the rear portion of the movable member on the door closing position side in the door opening / closing direction comes into contact with the side surface of the door-contacting body from the door opening direction, the movable member The magnet or magnetic body is attracted to the set attracting position on the upper surface of the door-to-door body.

  Further, when the door at the set opening position is closed, the magnet or magnetic body of the movable member on the casing side separates while sliding along the upper surface of the door-stopping body and is movable by the urging force of the urging body. The member rises.

  Therefore, the door is reliably attracted and held at the set suction position of the door-to-door body by the magnet or magnetic body provided on the casing-side movable member and the rear abutting portion at least part of which is made of the magnetic body or magnet. In addition, the door-stop body may be at least partially composed of a magnetic body or a magnet, and the upper surface of the door-stop body may be slidable with the lower end surface of the movable member as the door is opened and closed. The door-stop body can be reduced in size and simplified.

  According to a second characteristic configuration of the door stop device of the present invention, the door stop body includes a magnetic body or magnet having a mounting portion on a floor surface, and a resin that is fitted to the magnetic body or magnet from above. It is in the point comprised from the cover made from.

  According to the said structure, since the main part of the said door stop body is comprised from the magnetic body or magnet provided with the attachment part to a floor surface, size reduction and simplification of a door stop body can be accelerated | stimulated. Moreover, by fitting a resin cover from above to the magnetic body or magnet fixed to the floor surface with the screws or the like, not only can the cover to the floor surface be covered beautifully, The impact at the time of contact with the rear contact portion of the movable member can be buffered.

  According to a third characteristic configuration of the door contact device of the present invention, a tension coil spring constituting the biasing body is disposed in a hollow portion of the movable member, and an upper end portion of the tension coil spring is disposed on the movable member. The lower end portion of the tension coil spring is fixed to the lower part of the hollow portion of the movable member. .

  According to the said structure, the tension coil spring which raises and urges | biases the said movable member to a standby position can be compactly arrange | positioned in the hollow part formed in the said movable member, and was formed in the hollow part of the said movable member The long hole of the lifting range restriction can be used as a lifting guide for the movable member.

  According to a fourth characteristic configuration of the door stop device of the present invention, the casing includes a lock member that restricts contact of the door stop body from both sides in the door opening / closing direction with the rear contact portion, and a pushing operation of the knock operation member. And a lock operation means for alternately switching between a locked state and an unlocked state in which the lock member is moved above the door-to-door body in conjunction with.

  According to the above configuration, as the magnet or magnetic body provided on the casing-side movable member fixed to the door approaches the door-side body on the floor surface side, the movable member descends due to the magnet's attracting force, When the rear contact portion provided at the rear portion of the movable member on the door closing position side in the door opening / closing direction comes into contact with the side surface of the door stopper body from the door opening direction, the magnet or magnetism of the movable member is the door stopper body. Is adsorbed to a set adsorption position on the upper surface of

  In this state, when the knock operation member of the lock operation means is pushed in to switch the lock member from the unlocked state to the locked state, the door contact body is sandwiched between the lock member and the rear contact portion. This regulation allows the door to be securely fixed and held at the set suction position of the door-to-door body.

  Further, when the knock operation member of the lock operation means is pushed in and the lock member is switched to the unlocked state, the rear abutting portion only comes into contact with the door-to-door body, and the door at the set opening position is freely closed. can do.

  Therefore, it is possible to simplify the lock structure that can be locked at an arbitrary time by using the rear abutting portion for reliably adsorbing and holding the door at the set adsorption position of the door-to-door body.

  According to a fifth characteristic configuration of the door contact device of the present invention, the lock operating means includes a knock operating member externally mounted on the upper portion of the movable member, and a knock operating member upward with respect to the movable member. A knock urging body for moving and urging, a heart-shaped cam groove having a lock operation position and an unlock operation position formed on the outer peripheral surface of the movable member, and a knock operation in a movable state along the cam groove A cam follower provided on the member, and when the cam follower of the knock operation member is locked and held at the lock operation position in the cam groove, the lock member is held in a locked state, and the knock When the cam follower of the operating member is locked and held at the unlocking operation position in the cam groove, the knock operation is performed so that the locking member is held in the unlocked state. It lies in that the member and the locking member is associated.

  According to the said structure, when the cam follower of the said knock operation member is latched and hold | maintained at the lock release operation position in a cam groove, the said lock member is hold | maintained in the unlocked state. When the knock operation member is knocked against the urging force in this state, the cam follower of the knock operation member moves to the lock operation position along the cam groove, and the lock member is held in the locked state.

  Further, when the knock operation member is knocked against the urging force, the cam follower moves to the lock release operation position along the cam groove, and the lock member is held in the unlocked state.

  Therefore, the lock member can be switched between the locked state and the unlocked state by continuous operation of the knock operation member, and the operation can be simplified.

1 is an exploded longitudinal sectional side view showing a door stop device according to a first embodiment of the present invention. (A) is a longitudinal side view showing the suction state in the state at the unlocking operation position P1 in FIG. 4, and (b) is a longitudinal side view showing the non-suction state in the state at the unlocking operation position P1 in FIG. (C) is a vertical side view showing the suction state in the state at the lock operation position P3 in FIG. 4, and (d) is a vertical side view showing the suction state in the state at the second push-in operation position P4 in FIG. Enlarged rear view of cam groove Exploded perspective view from diagonally forward Disassembled perspective view from the back diagonal direction (A) is a perspective view when the door is opened, (b) is a perspective view when the door is sucked and held at the set opening position and locked. Exploded vertical side view showing a door stop device of a second embodiment of the present invention (A) is a longitudinal side view showing the suction state when the lock is released, and (b) is a vertical side view showing the non-adsorption state when the lock is released. (C) is a longitudinal side view showing the suction state when locked. Exploded perspective view from one side diagonal direction Exploded perspective view from the other side diagonal direction (A) is a perspective view showing the internal structure of the lock operating means when unlocking, (b) is a perspective view showing the internal structure of the lock operating means during pushing operation, and (c) is the inside of the lock operating means when locking. Perspective view showing structure Expanded horizontal exploded sectional view of the main part of the lock operating means (A) is an enlarged horizontal sectional view showing a fitting state between the cap and the ratchet guide, and (b) is an enlarged horizontal sectional view showing a fitting state between the cap and the ratchet. (A)-(d) is an operation explanatory drawing of the principal part at the time of pushing operation of a knock operation member Perspective view when opening the door (A) is a horizontal sectional view when attached to the front surface of the door, (b) is a horizontal sectional view when attached to the back surface of the door, The perspective view at the time of door opening operation which shows the door stop apparatus of 3rd Embodiment of this invention Exploded perspective view from one side diagonal direction Exploded perspective view from the other side diagonal direction (A) is a longitudinal side view when unlocking, (b) is a longitudinal side view showing the suction state when unlocking, (c) is a longitudinal side view when locking. Vertical side view which shows the door stop apparatus of 4th Embodiment of this invention The perspective view which shows the door stop apparatus of 5th Embodiment of this invention.

[First Embodiment]
FIGS. 1 to 7 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, and a synthetic resin casing 2 that can be fixed to the door 1. And a door stop 3 made of a ferromagnetic material 3A, at least a part of which is fixed to the floor surface FL, and a synthetic resin decorative cover 4 that covers the casing 2, and the casing 2 shows an example of a synthetic resin movable member 5 that can be moved up and down through a mounting space S penetrating in the vertical direction of the casing 2, and an urging body that moves and urges the movable member 5 to a raised standby position. A tension coil spring 6 is assembled, and at the lower end of the movable member 5, the door 1 can be adsorbed and held at a set open position by a magnetic force between the door stop 3 and the ferromagnetic body 3A. Cylindrical permanent magnet 7 is provided, The magnet holding part 5C formed at the lower end of the movable member 5 comes into contact with the side part of the door stop 3 at the rear part on the door closing position side in the door opening / closing direction when the door 1 is moved to the set opening position. A rear abutting portion 8 for restricting the door 1 to the set opening position is provided.

  The casing 2 has a lock member 9 for restricting contact with the rear abutting portion 8 in a state where the door-contacting body 3 is sandwiched from both sides in the door opening / closing direction, and a lock member 9 in conjunction with the pushing operation of the knock operation member 41. There is provided a lock operating means A that alternately switches between a locked state and an unlocked state in which the door is moved above the door-stop body 3.

  As shown in FIGS. 2, 3, and 5, the door-contacting 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 a cover 3B made of synthetic resin fitted to the ferromagnetic body 3A from above, and the mounting hole 3C is formed in a tapered surface along the head of the countersunk screw 11, and On the bottom side of the outer peripheral surface of the ferromagnetic body 3A, an engagement groove 3b formed on the lower end of the inner peripheral surface of the cover 3B and projecting radially inward is detachably elastically engaged. 3a is formed.

  The casing 2 has an inner split case 20 provided with an attachment surface 20a that comes into contact with the opening surface of the door 1, and an outer side provided with an attachment surface 21a that comes into contact with the surface of the door 1. The split case 21 is divided and configured between the opposed surfaces of the semicircular inner side surface 20b of the inner side split case 20 and the substantially U-shaped inner side surface 21b of the outer side split case 21. A mounting space S is formed.

  Screw mounting cylinders 22 for screwing the split cases 20 and 21 to the door 1 are integrally formed at a plurality of locations (four locations in the embodiment) of the left and right side wall portions 21c of the outer side split case 21. A plurality of recessed portions 23 that allow the screw mounting cylindrical portion 22 to enter are formed at a plurality of locations (four locations in the present embodiment) of the left and right side wall portions 20c of the inner divided case 20 formed. The mating surface with which the mating surface 20d on the front end side of the inner split case 20 fitted in and fitted into the outer split case 21 comes into contact with the inner side surface 21b of the outer split case 21. 21d is protrudingly formed.

  The decorative cover 4 can be externally attached to both of the split cases 20 and 21 fitted and attached so as to be detachable from above, and a side cover portion 4A having a substantially U-shaped cross section and a flat plate-like top cover. Engaging recess 21e along the vertical direction formed on the opening edge side of the side wall portions 21c of the outer side split case 21 at the opening edge of the side cover portion 4A. A first engaging projection 4a that engages with the upper side cover portion 4B is formed integrally with the left and right intermediate portions of the opening edge of the upper surface cover portion 4B in the horizontal direction formed on the edge of the upper surface of the inner divided case 20. A second engaging protrusion 4b that engages with the engaging recess 20e along the line is integrally formed.

  The upper surface cover portion 4B is formed with a through hole 4C from which a bottomed cylindrical knock operation member 41, which will be described later, is a constituent member of the lock operation means A.

  The movable member 5 includes a first split movable body 5A that slides in the vertical direction along the inner side surface 20b of the inner side split case 20, and a vertical direction along the inner side surface 21b of the outer side split case 21. The second divided movable body 5B is configured to be divided.

  On the lower side of the opposing surfaces of the two split movable bodies 5A and 5B, a magnet storage recess 25 is formed to reveal a space for storing the permanent magnet 7 in a state where the movement of the permanent magnet 7 in the vertical and horizontal directions is restricted. The magnet holding portion 5C is constituted by the lower side portions of the two split movable bodies 5A and 5B in which the magnet housing recess 25 is formed, and the upper portion from the middle portion on the opposite surface of the split movable bodies 5A and 5B. A spring accommodating recess 26 that exposes a hollow portion (internal space) in which the tension coil spring 6 can be accommodated is formed in the area extending to.

  At the three upper portions of the mating surfaces 5a and 5b of the two split movable bodies 5A and 5B, a fitting protrusion 27 and a fitting hole 28 that can be fitted to each other to join the split movable bodies 5A and 5B. And a screw insertion hole 30 for joining and fixing the split movable bodies 5A and 5B with screws 29 between the storage recesses 25 and 26 of the split movable bodies 5A and 5B. And screw holes 31 are formed.

  The upper locking portion 6a of the tension coil spring 6 is aligned with the two split cases 20 and 21 through a long hole forming recess 32 formed in the upper and lower intermediate portions of the mating surfaces 5a and 5b of the split movable bodies 5A and 5B. The lower locking portion 6b of the tension coil spring 6 is held and held by a locking pin (an example of a fixed shaft) 34 provided on a bearing recess 33 formed on the surfaces 20d and 21d. The split movable bodies 5A and 5B are locked and held using screws 29 for joining and fixing the split movable bodies 5A and 5B.

  The length of the long hole formed by the long hole forming recess 32 of both the split movable bodies 5A and 5B is the standby position that is the highest position and the door that is the lower position that can come into contact with the side surface of the door stop 3. It is set to a length that allows the movable member 5 to move up and down over the contact position, in other words, a length that has a function of restricting the maximum lift range in consideration of mounting errors.

  Specifically, the lower end edge of the long hole formed by the long hole forming recess 32 is configured as a stopper surface that holds the movable member 5 in the standby position by contact with the locking pin 34. The upper end edge of the long hole formed by the long hole forming recess 32 is in contact with the locking pin 34 in a state where the lower end surface of the movable member 5 is in contact with the upper surface of the cover 3B of the door stop 3. Even if a setting margin space is formed between them and an error occurs in which the mounting position of the casing 2 with respect to the door 1 is slightly shifted above the setting mounting position, the intended door-stop function can be reliably exerted. It is configured.

  Then, as shown in FIGS. 2A and 2B, the attracting force of the permanent magnet 7 is applied to the tension coil spring 6 as the door 1 moves close to the door-contacting body 3 provided at the set opening position of the door 1. When it becomes stronger than the elastic restoring force, the movable member 5 in the standby position moves down to the door stop position against the elastic biasing force of the tension coil spring 6, and the permanent magnet 7 causes the ferromagnetic body 3 </ b> A of the door stopper 3. To adsorb.

  At this time, the rear contact portion 8 provided at the rear portion on the door closing position side in the door opening / closing direction in the magnet holding portion 5C formed at the lower end portion of the movable member 5 is at the set opening position of the door 1. When not contacting the side surface of the door stop 3, the lower end surface of the movable member 5 is in sliding contact with the smooth upper surface of the cover 3 </ b> B of the door stop 3 until contact.

  Further, when the door 1 in the set open position is closed, initially, the attracting force of the permanent magnet 7 is stronger than the elastic restoring force of the tension coil spring 6, so that the lower end surface of the movable member 5 is the cover of the door stop 3. When the permanent magnet 7 is closed while sliding along the smooth upper surface of 3B, and the attracting force of the permanent magnet 7 becomes weaker than the elastic restoring force of the tension coil spring 6, the movable member 5 rises to the standby position. To do.

  The rear contact portion 8 is formed such that at least the contact surface is in an arc shape along the outer peripheral surface of the cover 3B of the door stop body 3, and radially outwardly and at the lower end portion of the outer peripheral surface of the first split movable body 5A. The upper surface 8a of the rear contact portion 8 is formed at the lower end of the inner side surface 20b of the inner divided case 20 when the movable member 5 is raised to the standby position. It is also used as a stopper surface that enters the semicircular arc-shaped concave portion 35 and abuts against the ceiling surface thereof.

  The lock member 9 is composed of a plate-like body that is curved in an arc shape along the outer peripheral surface of the cover 3B of the door stop body 3, and the outer peripheral surface of the second split movable body 5B of the movable member 5 and the outer surface. It is arranged so as to be movable up and down between the opposing surfaces of the side-side divided case 21 and the inner side surface 21b.

  On the lower end portion side of the lock member 9, there is a locking hole 39 in which a pair of locking claws 38 protruding from the outer peripheral surface of the second split movable body 5B are locked in a state in which they can be relatively moved in the vertical direction. In addition, the length of the locking hole 39 is set to a length that allows the movable member 5 to move up and down between the standby position and the door stop position.

  The lock operating means A includes a synthetic resin bottomed cylindrical knock operating member 41 that is externally mounted on the upper end of the movable member 5 and a knock operating member 41 with respect to the movable member 5. A compression coil spring 42 that is an example of a knock biasing body that moves upward and biases; a heart-shaped cam groove 43 that has a lock operation position and a lock release operation position formed on the outer peripheral surface of the movable member 5; A cam follower 44 is provided on the knock operation member 41 so as to be movable along the cam groove 43.

  A substantially C-shaped engagement groove 41 </ b> A formed at the lower end portion of the outer peripheral surface of the knock operation member 41 is integrally formed at the upper end of the lock member 9 and has a substantially C-shaped engagement capable of expanding the diameter. The knocking operation member 41 and the lock member 9 are linked so as to be movable together by mounting the stop body 9A in an elastically held state.

  The cam follower 44 is configured to be elastically deformed in the radial direction by two slits 44A along the vertical direction at a portion located between both ends of the C-shaped locking groove 41A on the peripheral wall of the knock operation member 41. An movable movable piece 44B is formed, and an engaging projection 44C that can be relatively moved along the cam groove 43 is formed on the lower end portion of the movable piece 44B so as to protrude inward.

  As shown in FIGS. 2 and 3, the compression coil spring 42 protrudes from the cylindrical holding protrusion 45 formed on the inner surface of the ceiling of the knock operation member 41 and the upper surfaces of the two split movable bodies 5A and 5B. It is covered with a semicylindrical protrusion 46 for constituting the formed cylindrical holding protrusion.

  The knock operating member 41 is moved upward and biased by the elastic biasing force of the compression coil spring 42. The maximum rising position of the knock operating member 41 is the engagement protrusion 44C of the cam follower 44 provided on the knock operating member 41 and the movable member. The lock member 9 connected to the knock operation member 41 is held at the lock release position.

  As shown in FIG. 4, the cam groove 43 is formed in a closed loop shape in which a heart shape is inverted up and down. The uppermost inverted V-shaped groove portion of the cam groove 43 is shown in FIG. As shown in (b), the engagement with the engagement protrusion 44C of the cam follower 44 results in a lock release operation position P1 for holding the lock member 9 in the lock release position which is the maximum ascending position.

  The lowermost V-shaped groove on the left side of the cam groove 43 has an engagement protrusion 44C of the cam follower 44 that moves downward by the first pushing operation of the knock operation member 41, as shown in FIG. And the first push-in operation position P2 for restricting the lock member 9 to the maximum lowered position slightly below the lock position.

  The middle inverted V-shaped groove near the lower portion of the cam groove 43 releases the first pushing operation of the knock operation member 41 as shown in FIG. 4 and FIG. The lock projection position P3 is received by receiving the engagement protrusion 44C of the cam follower 44 that is lifted by the elastic biasing force of the spring 42, and locks and holds the lock member 9 at the lock position slightly raised from the maximum lowered position.

  The lowermost V-shaped groove on the right side of the cam groove 43 has an engagement protrusion 44C of the cam follower 44 that moves downward by the second pushing operation of the knock operation member 41, as shown in FIG. When the second push-in operation position P4 for restricting the lock member 9 to the maximum lowered position slightly below the lock position is received, and the second push-in operation of the knock operation member 41 is released, the second push-in operation is performed. The engagement protrusion 44C of the cam follower 44 located at the position P4 is moved to the unlocking operation position P1 by the elastic biasing force of the compression coil spring 42, and the lock member 9 connected to the knock operation member 41 is unlocked. Retained.

  Of the cam groove 43, a boundary portion between the first cam groove portion 43A from the unlocking operation position P1 to the first pushing operation position P2 and the second cam groove portion 43B from the first pushing operation position P2 to the locking operation position P3. In this case, it is possible to prevent the engagement protrusion 44C of the cam follower 44 transferred to the first push-in operation position P2 from moving back to the unlocking operation position P1 side by moving down along the boundary line at the same time. A first guide step 43a is formed for guiding the engagement protrusion 44C of 44 to the lock operation position P3.

  Of the cam grooves 43, the second cam groove 43B and the third cam groove 43C from the lock operation position P3 to the second push operation position P4 are stepped down along the boundary line at the boundary portion of the third cam groove 43C. The engagement protrusion 44C of the cam follower 44 transferred to the lock operation position P3 is prevented from returning to the first pushing operation position P2 side, and at the same time, the engagement protrusion 44C of the cam follower 44 is moved to the second pushing operation position P4. A second guide step 43b for guiding the transition is formed.

  Of the cam groove 43, the third cam groove portion 43C and a boundary portion between the second push operation position P4 and the fourth cam groove portion 43D from the lock release operation position P1 are stepped down along the boundary line. As a result, the engagement protrusion 44C of the cam follower 44 transferred to the second push-in operation position P4 is prevented from returning to the lock operation position P3 side, and at the same time, the engagement protrusion 44C of the cam follower 44 is moved to the lock release operation position P1. A third guide step 43c for guiding the transition is formed.

  Of the cam groove 43, the cam follower 44 that has moved into the unlocking operation position P1 by dropping one step along the boundary line between the fourth cam groove portion 43D and the first cam groove portion 43A. A fourth guide step 43d is formed that prevents the mating protrusion 44C from moving back toward the second push-in operation position P4 and at the same time moves and guides the engagement protrusion 44C of the cam follower 44 to the first push-in operation position P2. .

[Second Embodiment]
FIGS. 8-18 show the door stop device of the door 1 attached to the opening of the building through a hinge so as to be swingable and openable around the longitudinal axis, and selectively fixed to the front and back surfaces of the door 1. A synthetic resin casing 2 configured in the shape of a rectangular tube, a door stop body 3 having at least a portion made of a ferromagnetic material (magnetic material) 3A fixed to the floor surface FL, and the casing 2 A synthetic resin decorative cover 4 is provided, and the casing 2 includes a synthetic resin movable member 5 configured in a rectangular tube shape that can be moved up and down through a mounting space S penetrating in the vertical direction of the casing 2. A tension coil spring 6 which is an example of a biasing body that moves and biases the movable member 5 to the raised standby position is assembled, and the lower end portion of the movable member 5 is attached to the door stop 3. The door 1 is installed by the magnetic force with the ferromagnetic material 3A. A cylindrical permanent magnet 7 that can be attracted and held at the open position is provided, and the door 1 is provided at a rear portion on the door closing position side in the door opening and closing direction in the magnet holding portion 5C formed at the lower end of the movable member 5. A rear abutting portion 8 is provided that abuts against the side surface of the door stop body 3 during movement to the set opening position to restrict the door 1 to the set opening position.

  The casing 2 has a lock member 9 for restricting contact with the rear abutting portion 8 in a state where the door-contacting body 3 is sandwiched from both sides in the door opening / closing direction, and a lock member 9 in conjunction with the pushing operation of the knock operation member 41. There is provided a lock operating means A that alternately switches between a locked state and an unlocked state in which the door is moved above the door-stop body 3.

  The casing 2 includes a first split case 50 provided with a mounting surface 50a that comes into contact with the surface on the opening side of the door 1, and a second mounting surface 51a that comes into contact with the back surface on the closing side of the door 1. The mounting space is configured to be divided into the split case 51, and between the opposing surfaces of the U-shaped inner surface 50 b of the first split case 50 and the U-shaped inner surface 51 b of the second split case 51. S is formed.

  In order to fix the split cases 50 and 51 to the door 1 with screws 58 at a plurality of locations (four locations in the embodiment) of the mounting surfaces 50a and 51a of the split cases 50 and 51, as shown in FIG. The screw mounting holes 52 of the second split case 51 are formed so as to communicate with each other. As shown in FIG. 11 and FIG. Engaging claws 54 that can be elastically deformed outward are integrally formed to engage with engaging recesses 53 formed in the upper and lower center portions of the left and right side wall portions 50c of the first divided case 50.

  In a plurality of locations (four locations in the present embodiment) on the mating surfaces 50d and 51d of the two split cases 50 and 51, fitting projections 55 and fits that can be fitted to each other in order to join the split cases 50 and 51 together. A joint hole 56 is formed.

  And when attaching the said casing 2 to the surface (outdoor side) which becomes the opening side of the door 1, the attachment surface 50a of the 1st division | segmentation case 50 is applied and fixed to the surface of this door 1, and the casing 2 is also fixed. Is attached to the back surface (inside the room) which is the closed side of the door 1, the mounting surface 51a of the second split case 51 is applied to the back surface of the door 1 and fixed, so that in any case the rear The orientation of the contact portion 8 can be maintained constant, and the contact surface of the rear contact portion 8 can be brought into contact with the side surface of the door contact body 3 when the door 1 is moved to the set opening position.

  The movable member 5 includes a first split movable body 5D that slides in the vertical direction along the inner side surface 50b of the first split case 50, and a vertical slide along the inner side surface 51b of the second split case 51. The second divided movable body 5E that moves is divided and configured.

  On the lower side of the opposing surfaces of the two split movable bodies 5D and 5E, a magnet storage recess 25 is formed to reveal a space for storing the permanent magnet 7 in a state where the movement of the permanent magnet 7 is restricted in the vertical and horizontal directions. The magnet holding portion 5C is constituted by the lower side portions of the two split movable bodies 5D and 5E in which the magnet housing recess 25 is formed, and the upper portion from the middle portion on the facing surface of the split movable bodies 5D and 5E. A spring accommodating recess 26 is formed in the area extending to the end to reveal an internal space in which the tension coil spring 6 can be accommodated.

  At three positions on the upper side of the mating surfaces 5d and 5e of the two split movable bodies 5D and 5E, a fitting projection 27 and a fitting hole 28 that can be fitted to each other to join the split movable bodies 5D and 5E. And a screw insertion hole 30 for joining and fixing the split movable bodies 5D and 5E with screws 29 between the storage recesses 25 and 26 of the split split bodies 5D and 5E. And screw holes 31 are formed.

  The upper locking portion 6a of the tension coil spring 6 is a mating surface of the split cases 50 and 51 through a long hole forming recess 32 formed in the upper portion of the mating surfaces 5d and 5e of the split movable bodies 5D and 5E. The lower latching portion 6b of the tension coil spring 6 is latched and held by the latching pin 34 provided in the bearing recess 33 formed in 50d and 51d, and the split movable body 5D. , 5E are locked and held using a screw 29 for joining and fixing.

  The decorative cover 4 can be externally attached to both the fitted cases 50 and 51 so as to be detachable from above, and the side cover 4A having a substantially U-shaped cross section and an upper surface having a flat plate shape. In addition to the cover portion 4B, the upper surface cover portion 4B is formed with a through-hole 4C through which a bottomed rectangular tubular knock operation member 41, which is a component member of the lock operation means A, protrudes upward. ing.

  On the left and right opening edges of the side surface cover portion 4A, engaging recesses 50e along the vertical direction formed at both corners where the mounting surface 50a of the first split case 50 and both side wall portions 50c intersect, and Engaging protrusions 4d that can selectively engage with engaging recesses 51e along the vertical direction formed at both corners where the mounting surface 51a of the second divided case 51 and both side wall portions 51c intersect are integrated. Is formed.

  And when attaching the said casing 2 to the surface (outdoor side) used as the opening side of the door 1, the decorative cover 4 with respect to both the engagement recessed parts 50e of the 1st division | segmentation case 50 fixed to the surface of this door 1 is carried out. When the two engagement protrusions 4d are engaged and mounted from above, and the casing 2 is attached to the rear surface (inside the room) which is the closed side of the door 1, the second is fixed to the rear surface of the door 1. Both engagement protrusions 4d of the decorative cover 4 are engaged and attached to both engagement recesses 51e of the split case 51 from above.

  The rear contact portion 8 is formed in a straight line along the tangential direction of the outer peripheral surface of the cover 3B of the door-stop body 3, and protrudes outward from the lower end portion of the outer peripheral surface of the first split movable body 5D. And the upper surface 8a of the rear contact portion 8 is a semicircular arc formed at the lower end of the inner side surface 50b of the first split case 50 when the movable member 5 is raised to the standby position. It is also used as a stopper surface that enters the recess 35 and abuts against the ceiling surface thereof.

  The door contact body 3 is fitted from above to an annular ferromagnetic body (magnetic body) 3A formed through a mounting hole 3C that is a mounting portion to the floor surface FL, and the ferromagnetic body 3A. And a synthetic resin cover 3B.

  A mounting hole 3C of the ferromagnetic body 3A is formed in a tapered surface along the head of the countersunk screw 11, and on the bottom surface side of the outer peripheral surface of the ferromagnetic body 3A, an inner peripheral surface of the cover 3B is formed. An engagement groove 3a is formed, which is detachably elastically engaged with an engagement protrusion 3b that protrudes inward in the radial direction and is formed on the lower end. Further, an opening periphery of the outer peripheral surface of the cover 3B is formed on the floor surface FL. The flange 3d that contacts is integrally formed.

  The lock member 9 is configured in a plate shape that can be slidably arranged in the vertical direction between the outer peripheral surface of the second split movable body 5E of the movable member 5 and the mounting surface 51a of the second split case 51. In addition, the upper end portion 9a of the lock member 9 is fitted and held from below in a state where it can move up and down integrally with a fitting recess 41B formed on the inner surface of the ceiling of the knock operation member 41. Yes.

  On the lower end side of the lock member 9, a locking hole 40 is formed in which a screw 29 for joining and fixing the split movable bodies 5D and 5E is locked in a state of being relatively movable in the vertical direction. The length of the locking hole 40 is set to a length that allows the movable member 5 to move up and down across the standby position and the door stop position.

  The lock operating means A can be fitted from above to a semi-small-angle tube portion 5f constituting a small-angle tube portion formed at the upper ends of both split movable bodies 5D and 5E of the movable member 5, and A cylindrical cap 60 having a pair of locking claws 60a that are elastically deformable outwardly and engages with an engagement hole 5g formed in the semi-small-angle cylindrical portion 5f at a predetermined fitting position; A ratchet 61 mounted in the cylindrical portion 60A from below, and a ratchet 61 that can contact the ratchet 61 from above through the cylindrical portion 60A of the cap 60, and is formed at the center of the ceiling inner surface of the knock operation member 41 It is an example of a ratchet guide 62 fitted and held from below in a state where it can move up and down integrally with the cylindrical fitting recess 41C, and a biasing means for moving and biasing the ratchet 61 upward. Compression coil spring 63 It is provided.

  As shown in FIGS. 13 to 16, on the small diameter inner peripheral surface 60b of the cylindrical portion 60A of the cap 60, there are three first guide grooves 60c having a large groove depth in the radial direction, and the first guide grooves 60c. Three second guide grooves 60d having a groove depth smaller than that of the first guide grooves 60c and the second guide grooves are formed along the vertical direction in a state where they are alternately positioned at equal intervals in the circumferential direction. An upper end portion of 60d is formed with an escape prevention portion 60e that prevents upward movement.

  At three locations in the circumferential direction of the outer peripheral surface of the intermediate portion 61a of the ratchet 61, the radially outward projection allowance is slightly smaller than the groove depth of the first guide groove 60c, and the second guide groove 60d A first protrusion 61b, which is set to be larger than the groove depth and can be engaged from below only in the first guide groove 60c, is integrally formed, and the lower end portion of the ratchet 61 includes A spring receiving portion 61c that receives the upper end of the compression coil spring 63 is integrally formed, and the outer peripheral surface of the spring receiving portion 61c is configured as a lifting guide surface that is in sliding contact with the large-diameter inner peripheral surface 60f of the cylindrical portion 60A of the cap 60. ing.

  At six locations in the circumferential direction at the lower end portion of the outer peripheral surface of the ratchet guide 62, the projecting margin slightly outward in the radial direction is slightly smaller than the groove depth of the second guide groove 60d, and the first and second A second protrusion 62a that is always engaged with one of the two guide grooves 60c and 60d is integrally formed.

  The cap 60 provided with the first and second guide grooves 60c, 60d with which the second protrusion 62a of the ratchet guide 62 is always engaged is engaged with the small angle tube portion of the movable member 5 in a state in which the cap 60 is not rotatable. Since they are fixed together, the ratchet guide 62 only moves up and down along the first and second guide grooves 60c and 60d.

  As shown in FIG. 16, the knock operation member 41 has a contact surface opposite to the upper end surface of the intermediate portion 61 a of the ratchet 61 including the upper end surface of the first protrusion 61 b and the lower end surface of the ratchet guide 62. When the first protrusion 61b of the ratchet 61 is pulled out downward from the first guide groove 60c of the cap 60 by being pushed down by the lower end surface of the ratchet guide 62 in accordance with the pushing operation, the ratchet 61 has a predetermined rotation angle in one direction. Corrugated cam surfaces 61d and 62b for applying the rotational force are formed.

  As shown in FIG. 16 (a), in the state where the first protrusion 61 b of the ratchet 61 is positioned in the first guide groove 60 c of the cap 60, the corrugated cam surface 62 b formed on the lower end surface of the ratchet guide 62. The lowermost end point of is arranged and set at an intermediate portion of the inclined surface of the corrugated cam surface 61 d formed on the upper end surface of the intermediate portion 61 a of the ratchet 61.

FIGS. 16B and 16C show a process in which the first protrusion 61 b of the ratchet 61 is pushed downward from the first guide groove 60 c of the cap 60.
When the first protrusion 61b of the ratchet 61 is pushed out from the first guide groove 60c of the cap 60, the restriction on the rotation of the ratchet 61 is released. Therefore, when the pushing operation force of the knock operation member 41 is released in this state As shown in FIG. 16C, the wave cam surface 61d of the ratchet 61 is pressed against the wave cam surface 62b of the ratchet guide 62 by the elastic biasing force of the compression coil spring 63, and the ratchet 61 is unidirectionally moved by a predetermined rotation angle. Will rotate.

  As shown in FIGS. 8, 13, and 16, each of the first and second guide grooves 60c and 60d is provided at a step portion between the small-diameter inner peripheral surface 60b and the medium-diameter inner peripheral surface 60g of the cap 60. Between the adjacent ones, the corrugated cam surface 61d of the ratchet 61 rotated in one direction by the corrugated cam surfaces 61d and 62b is moved to the next adjacent first guide groove 60c or second guide by the elastic biasing force of the compression coil spring 63. The transition inclined surface 60h that guides the transition toward the lower end opening side of the groove 60d and the side surface of the first protrusion 61b of the ratchet 61 that has transitioned along the transition inclined surface 60h contact the ratchet 61 with the first guide groove 60c or A groove extension side surface (rotation restricting surface) 60i that is locked and held at a portion corresponding to the lower end opening of the second guide groove 60d is formed.

  When the transition guide destination of the first protrusion 61b of the ratchet 61 by the transition inclined surface 60h and the groove extension side surface 60i is the lower end opening of the second guide groove 60d, the upper end surface of the first protrusion 61b Since the projecting margin outward in the radial direction is set to be larger than the groove depth of the second guide groove 60d, the upper end surface of the first protrusion 61b has a compression coil spring 63 as shown in FIG. Is engaged and held in the lower end opening of the second guide groove 60d.

  Then, as shown in FIG. 16 (b), when the knock operation member 41 is pushed up to the maximum at the first time, the lock member 9 reaches the maximum lowered position slightly below the predetermined lock position. When the pushing operation force of the knock operating member 41 is released in this state, the corrugated cam surfaces 61d and 62b, the transition inclined surface 60h, and the groove extending side surface 60i cooperate with each other as shown in FIG. In addition, the first protrusion 61 b of the ratchet 61 moves to the lower end opening of the second guide groove 60 d and is held and held, and this becomes the lock position of the lock member 9.

  Next, when the knock operation member 41 is pushed in for the second time, the upper end surface of the first protrusion 61b of the ratchet 61 descends to a position below the lower end of the groove extension side surface 60i. Since the restriction of rotation is released, when the pushing operation force of the knock operation member 41 is released in this state, the wave cam surface 61 d of the ratchet 61 is pressed against the wave cam surface 62 b of the ratchet guide 62 by the elastic biasing force of the compression coil spring 63. Thus, the ratchet 61 rotates by a predetermined rotation angle in one direction.

Continuously with this rotation, the first protrusion 61b of the ratchet 61 is transferred to the lower end opening of the first guide groove 60c by the transition inclined surface 60h and the groove extension side surface 60i.
Since the projecting margin of the upper end surface of the first protrusion 61b in the radially outward direction is set to be smaller than the groove depth of the first guide groove 60c, the first protrusion 61b of the ratchet 61 has a groove extending side surface. Ascending by the elastic biasing force of the compression coil spring 63 along the inside of 60i and the first guide groove 60c.

This rise is caused by the contact between the corrugated cam surface 62b formed on the lower end surface of the ratchet guide 62 and the corrugated cam surface 61d formed on the upper end surface of the intermediate portion 61a of the ratchet 61 in the positional relationship shown in FIG. In addition, the cap 60 stops in a state where the spring receiving portion 61c of the ratchet 61 is in contact with a step portion between the inner diameter inner peripheral surface 60g and the large diameter inner peripheral surface 60f.
This stop position is a lock release position in which the lock member 9 connected to the knock operation member 41 is raised.
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.

[Third Embodiment]
19 to 22 show a door-contacting device for the door 1 that is swingably opened and closed around a vertical axis through a hinge at the opening of the building, and is selectively fixed to the front and back surfaces of the door 1. A synthetic resin casing 2 configured in the shape of a rectangular tube, a door stop body 3 having at least a portion made of a ferromagnetic material (magnetic material) 3A fixed to the floor surface FL, and the casing 2 A synthetic resin decorative cover 4 is provided, and the casing 2 includes a synthetic resin movable member 5 configured in a rectangular tube shape that can be moved up and down through a mounting space S penetrating in the vertical direction of the casing 2. A tension coil spring 6 which is an example of a biasing body that moves and biases the movable member 5 to the raised standby position is assembled, and the lower end portion of the movable member 5 is attached to the door stop 3. The door 1 is moved by the magnetic force between it and the ferromagnetic material 3A. A cylindrical permanent magnet 7 that can be attracted and held at a fixed opening position is provided, and the door is located at a rear portion on the door closing position side in the door opening / closing direction in the magnet holding portion 5C formed at the lower end of the movable member 5. A rear abutting portion 8 is provided that abuts against the side surface of the door stop body 3 when the door 1 is moved to the set opening position 1 and restricts the door 1 to the setting opening position.

  The decorative cover 4 is also used as a lock member for restricting contact with the rear contact portion 8 in a state where the door-stop body 3 is sandwiched from both sides in the door opening / closing direction, and the decorative cover 4 is connected to the lock position and the door. Position change holding means B for holding the position changeable by manual operation at the unlocked position moved upward from the contact body 3 is provided.

  Of the four side wall portions 2A to 2D constituting the casing 2, a large diameter through which the head of the screw 65 can be inserted into two upper and lower portions of the side wall portion 2A on the back surface side provided with a mounting surface to the door 1. A polished first mounting hole 66 in which the hole and a small diameter hole through which only the screw shaft of the screw 65 can be inserted is coupled, and a circular second mounting hole 67 through which only the screw shaft of the screw 65 can be inserted. Is formed.

  The side wall 2B on the surface side of the casing 2 is formed with an operation notch 68 for the screw 65 inserted through the second mounting hole 67, and the left and right side walls 2C and 2D are provided with the tensile member. A circular first bearing hole 70 for laying a first locking pin 69 for locking the upper locking portion 6a of the coil spring 6 and the lower locking portion 6b of the tension coil spring 6 are locked. For this purpose, there is formed a second bearing hole 72 having a long hole shape that is long in the vertical direction for laying the second locking pin 71.

  A receiving portion 75 for receiving the lower surface of the permanent magnet 7 inserted from above is integrally formed below the circular inner space 74 of the movable member 5, and in the circular inner space 5 </ b> F of the movable member 5. A presser ring 76 for preventing the permanent magnet 7 from coming out upward is disposed at an upper position of the magnet storage space, and the presser ring 76 is inserted into the elongated hole 76a formed in the circumferential direction in the long hole 76a. The two locking pins 71 are inserted and held.

  Projections that are slidably guided in the vertical direction at the respective corners of the four side surfaces of the movable member 5 along the guide grooves 2a formed at the four corners of the inner peripheral surface of the casing 2 so as not to be relatively rotatable. The strip 5F is integrally formed, and the casing 2 can be replaced with the casing 2 in units of 90 degrees.

  Therefore, when the casing 2 is attached to the back surface of the door 1, the movable member 5 is reversely attached to the casing 2, and the movable member 5 is movable regardless of whether the casing 2 is attached to either the front or back surface of the door 1. A rear contact portion 8 provided at a rear portion of the magnet holding portion 5C of the member 5 on the door closing position side in the door opening / closing direction contacts the side surface of the door stop body 3 when the door 1 is moved to the set opening position. Thus, the door 1 can be securely sucked and held at the set opening position.

  The decorative cover 4 can be externally attached to the casing 2 so as to be detachable from above, and is composed of a side cover portion 4A having a substantially U-shaped cross section and an upper surface cover portion 4B having a flat plate shape. The opening edge of the side cover portion 4A is integrally formed with an engaging projection 4e that engages with an engaging recess 2b that is formed on the left and right sides of the casing 2 on the door mounting surface side along the vertical direction. .

  The position change holding means B is formed in a state in which the casing 2 is elastically deformed in a perspective direction with respect to the front surface or back surface of the door 1 at a portion biased toward the door 1 on the lower surface of the upper surface cover portion 4B of the decorative cover 4. A movable piece 80 projecting downward from the second mounting hole 67 is suspended, and a head 65 a of a screw 65 fixed to the door 1 through the second mounting hole 67 of the casing 2 is provided at the lower end of the movable piece 80. A recess 81 is formed which fits the cover 4 and holds the decorative cover 4 in an unlocked position where the lower end of the decorative cover 4 is flush with the lower end of the door 1.

When the upper cover portion 4B of the decorative cover 4 is pushed in, the concave portion 81 moves over the head 65a of the screw 65 due to the bending deformation of the movable piece 80, and the front end side of the lower surface of the upper cover portion 4B is on the casing 2 side. When it comes into contact with the upper end surface, the lower end portion of the side cover portion 4A of the decorative cover 4 is in a locked state in which it can come into contact with the side surface of the door stop body 3, so that the locked state is maintained by its own weight. It is configured.
Other configurations are the same as those described in the first embodiment or the second embodiment, and therefore, the same reference numerals as those in the first embodiment or the second embodiment are attached to the same components. The description thereof is omitted.

[Fourth Embodiment]
23, the movable piece 80 and the concave portion 81 of the position change holding means B in the third embodiment described above are deleted, and the height dimension of the decorative cover 4 is made higher than that of the casing 2 in the upper cover portion 4B. The size is increased by the thickness, and the lock function of the decorative cover 4 is eliminated.
In addition, since the other structure is the same as the structure demonstrated in 3rd Embodiment, the same number is attached to the same component location as 3rd Embodiment, and the description is abbreviate | omitted.

[Fifth Embodiment]
In the first to fourth embodiments described above, the door stop device attached to the front surface or the back surface of the door 1 has been described. However, as shown in FIG. 24, the casing 2 of the door stop device may be attached to the door 1 in an embedded state. Good.
In the fifth embodiment, a door contact is made when the door 1 is moved to the set opening position on the rear portion on the door closing position side in the door opening / closing direction in the magnet holding portion 5 </ b> C formed at the lower end portion of the movable member 5. A rear abutting portion 8 that abuts against the side surface of the body 3 and restricts the door 1 to the set opening position is provided, and the casing 2 is connected to the casing 2 with the rear abutting portion 8 in the door opening / closing direction. Locking means (not shown) for restricting contact in a state of being sandwiched from both sides, and a lock operating means for switching between a locked state and an unlocked state in which the locking member is moved above the door-stop body 3 (main part is (Not shown).
A switching operation knob 82 for the lock operation means is provided in the operation recess 83 of the casing 2 exposed to the outside at the front end surface of the door 1.

[Other Embodiments]
(1) In each of the embodiments 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 5 is provided. The magnetic body 3A may be provided on the 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 each of the above-described embodiments, the door-contacting body 3 includes a ferromagnetic body 3A that penetrates the mounting hole 3C that is a mounting portion to the floor surface FL, and an upper side with respect to the ferromagnetic body 3A. The cover 3B is made of a synthetic resin that is fitted from above. However, the cover 3B may be made of only a ferromagnetic body having an attachment portion to the floor surface FL.

A Lock operation means FL Floor 1 Door 2 Casing 3 Door contact body 3A Magnetic body (ferromagnetic body)
3B cover 5 movable member 6 biasing body (tensile coil spring)
7 Magnet (permanent magnet)
8 Rear contact 9 Lock member 34 Fixed shaft (locking pin)
41 Knock operation member 42 Knock biasing body (compression coil spring)
43 Cam groove 44 Cam follower

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 including a magnet or a magnetic body, which can be moved up and down, and a biasing body that moves and biases the movable member to a raised standby position are assembled, and the movable member is on the door closing position side in the door opening / closing direction. A door stop device provided with a rear contact portion that abuts against a side surface of the door contact body when the door is moved to the set opening position.   The said door stop body is comprised from the magnetic body or magnet provided with the attaching part to a floor surface, and the resin-made covers fitted with respect to this magnetic body or magnet from upper direction. Door-to-door equipment.   A tension coil spring that constitutes the biasing body is disposed in the hollow portion of the movable member, and an upper end portion of the tension coil spring passes through an elongating allowance hole formed in the hollow portion of the movable member. The door stop device according to claim 1, wherein the door stop device is attached to a fixed shaft installed on the casing, and a lower end portion of the tension coil spring is fixed to a lower portion in the hollow portion of the movable member.   The casing includes a locking member that restricts contact of the door-contacting body from both sides in the door opening / closing direction with the rear contact portion, and a lock member that is interlocked with a pushing operation of the knocking operation member from the locked state and the door-contacting body. The door stop device according to any one of claims 1 to 3, further comprising: a lock operation unit that alternately switches to an unlocked state moved upward.   The lock operation means includes a knock operation member externally mounted on the upper part of the movable member, a knock urging body that urges the knock operation member to move upward with respect to the movable member, and the movable member A heart-shaped cam groove having a lock operation position and an unlock operation position formed on the outer peripheral surface of the cam and a cam follower provided on the knock operation member so as to be movable along the cam groove. When the cam follower of the knock operation member is locked and held at the lock operation position in the cam groove, the lock member is held in a locked state, and the cam follower of the knock operation member is operated to unlock the cam groove. The knock operation member and the lock member are linked so that the lock member is held in an unlocked state when being held in position. 4 doorstop device according.

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