JP2022067000A - Door stopper - Google Patents

Abstract

[PROBLEMS] To provide a door stopper in which the magnitude of force required to close a held door does not change depending on the height from the floor side mechanism portion to the door side mechanism portion. A door side mechanism part (100) of a door stopper (10), when a door (D) moves in an opening direction and the door side mechanism part (100) reaches a position above a floor surface side mechanism part (200), a flap (210) is opened. to a predetermined upper end position, and a second claw portion 153 that engages with the flap 210 by moving to the engagement position on the lower side to keep the door D open. The door-side mechanism part 100 is in a position where the second claw part 153 does not engage with the flap 210 when the door D moves in the closing direction while the second claw part 153 is engaged with the flap 210 . It is configured to rise to the release position. [Selection drawing] Fig. 6

Description

The present invention relates to a door stopper.

A door stopper is a device for preventing a door that opens and closes from being opened too much beyond a predetermined position. For example, as described in each of Patent Documents 1 and 2 below, the door stopper has a mechanism provided on the floor surface and a mechanism provided on the door. Hereinafter, the mechanism provided on the floor surface of the door stopper is also referred to as a “floor surface side mechanism portion”, and the mechanism provided on the door is also referred to as a “door side mechanism portion”.

The floor side mechanism portion is provided with a flap. The flap is a plate-shaped member whose at least a part is made of a magnetic material, and is held on the floor surface in a state where it can swing in the vertical direction. The door-side mechanism is equipped with a magnet. When the door moves in the opening direction and reaches the position where the door-side mechanism is on the upper side of the floor-side mechanism, the flap of the floor-side mechanism is moved upward by the magnet of the door-side mechanism. It is drawn to a predetermined position. At this time, when the door is further opened, a part of the flap attracted to the upper side comes into contact with the door side mechanism portion, which hinders the movement of the door in the opening direction.

Some door stoppers have a function of holding the door in a predetermined position in addition to the function of preventing the door from being opened too much as described above. For example, in the door stopper described in Patent Document 1 below, the lock pin provided in the door side mechanism portion is lowered by the operation of the user, and is inserted into the through hole of the flap from the upper side, so that the lock pin and the flap are separated from each other. It will be in a state of being engaged with each other. This makes it possible to hold the door in a predetermined position. In order to release the holding of the door, it is necessary to raise the lock pin by the operation of the user.

Further, in the door stopper described in Patent Document 2 below, the engaging protrusion provided on the door side mechanism portion is in a state of protruding downward in advance. When the door is opened to a predetermined position by the user, the protruding engaging protrusion is inserted into the through hole of the flap, and the door is held in the predetermined position. The door stopper is configured to automatically disengage the engaging protrusion with the flap when a closing force is applied to the door held in place. That is, with this door stopper, the user can switch between a state in which the door is held at a predetermined position and a state in which the door is released by simply opening and closing the door.

Japanese Unexamined Patent Publication No. 2010-48053 Japanese Unexamined Patent Publication No. 2017-66819

Regarding the door stopper described in Patent Document 2, a specific operation when the door provided with the door stopper moves in the closing direction and the engagement of the engaging protrusion with the flap is automatically released will be described. .. As the door begins to move in the closed direction, the engaging projections rotate by receiving force from the edge of the through hole in the flap. As the engaging protrusion rotates, the lower end position of the engaging protrusion moves upward, so that the depth of the portion of the engaging protrusion that is inserted through the through hole gradually becomes shallower.

The engagement projection is in a state in which further rotation is restricted before the entire engagement projection is completely removed from the through hole of the flap. In this state, that is, when the engaging protrusion is still in the through hole and a further closing force is applied to the door, the flap is lowered against the frictional force between the engaging protrusion and the flap. It moves to the side and the engagement protrusion is disengaged from the flap. The magnitude of the force that should be applied to the door to disengage it will be determined by the frictional force described above.

By the way, the height from the floor surface side mechanism portion to the door side mechanism portion may change depending on the installation state of the door in the building and the mounting position of the door side mechanism portion with respect to the door. If the height changes, the above-mentioned frictional force at the time of disengagement changes as the angle of the flap in the state of being attracted by the magnet changes. As a result, the magnitude of the force that should be applied to the door to disengage it also changes. Such a change in the magnitude of the force is not preferable because it may give a sense of discomfort to the user.

An object of the present invention is to provide a door stopper in which the magnitude of the force required to close the held door does not change depending on the height from the floor side mechanism portion to the door side mechanism portion. be.

The invention according to claim 1 is a door stopper having a floor surface side mechanism portion provided on the floor surface and a door side mechanism portion provided on the door, and the floor surface side mechanism portion is at least partially magnetic. It is a plate-shaped member formed by the body and has a flap that is held so as to be able to swing in the vertical direction. A magnet that pulls the flap to the upper end position when it reaches the position on the upper side of the surface side mechanism part, and the flap is pulled to the upper end position and then moved to the lower engagement position to engage with the flap. And with an engaging member that keeps the door open, the engaging member is pulled to the upper end position when the door moves in the closed direction while the engaging member is engaged with the flap. It is configured to rise to a position where it does not engage with the flap in the closed state, which is a release position.

The invention according to claim 2 further has the following configuration in the invention according to claim 1. The engaging member engages with the flap by entering the through hole formed in the flap from above, and the release position is the through hole formed in the flap in a state of being pulled to the upper end position. This is the position where the engaging member can be pulled out upward.

The invention according to claim 3 further has the following configuration in the invention according to claim 1 or 2. The door-side mechanical portion further includes an operating portion that is a portion operated by the user in order to fix the position of the engaging member.

The invention according to claim 4 further has the following configuration in the invention according to claim 3. When the door side mechanism portion does not reach the position where the door side mechanism portion is on the upper side of the floor surface side mechanism portion and the position of the engaging member is not the engaging position, the operation to the operation portion is performed. It has a lock mechanism that locks the operation unit so that

The invention according to claim 5 further has the following configuration in the invention according to claim 4. The lock mechanism is configured so that the protrusion provided on the operation portion abuts on a part of the engaging member at the release position to regulate the operation of the operation portion.

The invention according to claim 6 further has the following configuration in the invention according to claim 5. The protrusion is integrally formed with the operation portion.

The invention according to claim 7 further has the following configuration in the invention according to any one of claims 1 to 6. The door-side mechanism is used to change the engaging member from the engaging position to the disengaging position rather than the force to be applied to the door in order to change the engaging member from the disengaging position to the disengaging position. It is further provided with an elastic member that applies a force to the engaging member so that the force to be applied to the door is greater.

The invention according to claim 8 further has the following configuration in the invention according to claim 7. The elastic member is a leaf spring, and the door side mechanism portion further includes a support member that supports a part of the elastic member, and the support member is used when the engaging member is changed from the disengaging position to the engaging position. The range of the leaf spring supported by the support member is wider than the range of the leaf spring supported by the support member when the engaging member is changed from the engaging position to the disengaging position. Has been done.

The invention according to claim 9 further has the following configuration in the invention according to claim 8. A part of the door is used as a support member.

(Claim 1)
When the door moves in the closing direction while the engaging member is engaged with the flap, the engaging member rises to the disengaging position. After the engaging member has risen to the disengaging position, even if the door further moves in the closing direction, almost no frictional force is generated between the engaging projection and the flap. Therefore, even if the height from the floor surface side mechanism portion to the door side mechanism portion changes, the magnitude of the force required to close the held door does not change.

(Claim 2)
The release position is a position where the engaging member can be pulled out upward from the through hole formed in the flap in a state of being pulled to the upper end position. Since the engaging member rises to such a disengaging position, the frictional force generated between the engaging projection and the flap when the door is closed can be completely eliminated. As a result, it is possible to more reliably prevent a change in the magnitude of the force required to close the held door.

(Claim 3)
When the door-side mechanism portion includes the operation portion, the engaging member can be fixed at the engaging position when the door is opened and held to a predetermined position. This makes it possible to maintain the door in a predetermined position even when a force in the closing direction is applied to the door.

(Claim 4)
If the operation part is mistakenly operated when the door side mechanism part has not reached the position above the floor side mechanism part, the engaging member and the flap are engaged with each other. The position of the engaging member is fixed in the absence state. If the door is opened to a predetermined position in this state and the door side mechanism portion reaches a position above the floor surface side mechanism portion, a part of the door stopper may be damaged depending on the structure of the door stopper. There is a possibility that it will end up. Therefore, in the present invention, when the door side mechanism portion does not reach the position on the upper side of the floor surface side mechanism portion and the position of the engaging member is not the engaging position, the operation portion is locked. The lock mechanism prevents the operation of the operation unit. This makes it possible to prevent the door stopper from being damaged as described above.

(Claim 5)
By configuring the protrusion provided on the operation unit to abut on a part of the engaging member at the release position, it is possible to physically regulate the operation of the operation unit.

(Claim 6)
By forming the protrusion integrally with the operation portion, it is possible to reduce the number of parts of the door stopper.

(Claim 7)
By providing the elastic member, in order to change the engaging member from the disengaging position to the disengaging position, in order to change the engaging member from the engaging position to the disengaging position, rather than the force to be applied to the door. The force that should be applied to the door can be greater. This makes it possible to hold the door with a small force when opening the door, but it is possible to prevent the door from being closed by an unexpected external force after the door is held. Will be.

(Claim 8)
When changing the engaging member from the disengaging position to the engaging position, the range of the leaf spring supported by the supporting member becomes relatively narrow. Therefore, the distance from the fulcrum of the leaf spring to the point of action becomes long, and the force received by the engaging member from the leaf spring becomes small. On the other hand, when the engaging member is changed from the engaging position to the disengaging position, the range of the leaf spring supported by the supporting member becomes relatively wide. Therefore, the distance from the fulcrum of the leaf spring to the point of action is shortened, and the force received by the engaging member from the leaf spring is increased. According to the present invention, it is possible to easily realize a configuration in which the magnitude of the force received by the engaging member from the elastic member changes according to the operating direction of the engaging member by providing the support member.

(Claim 9)
By using a part of the door as a support member for supporting the leaf spring, it is possible to reduce the number of parts of the door stopper.

FIG. 1 is a perspective view showing a state in which the door stopper according to the present embodiment is attached to the door and the floor surface. FIG. 2 is a perspective view showing a state in which the door stopper according to the present embodiment is attached to the door and the floor surface. FIG. 3 is a perspective view showing the appearance of the floor surface side mechanism portion. FIG. 4 is a perspective view showing the appearance of the floor surface side mechanism portion. FIG. 5 is an exploded assembly view showing the configuration of the floor surface side mechanism portion. FIG. 6 is a view showing a cross section of VI-VI of FIG. 1, and is a cross-sectional view showing an internal configuration of a door-side mechanism portion. FIG. 7 is an exploded assembly view showing the configuration of the door side mechanism portion. FIG. 8 is a diagram for explaining the operation of the door stopper when the door is opened and closed. FIG. 9 is a diagram for explaining the operation of the door stopper when the door is opened and closed. FIG. 10 is a diagram for explaining the operation of the door stopper when the door is opened and closed. FIG. 11 is a diagram for explaining the positional relationship between the engaging member and the through hole when the door is opened to a predetermined position. FIG. 12 is a diagram for explaining the positional relationship between the engaging member and the through hole when the door starts to be closed from a predetermined position. FIG. 13 is a diagram for explaining the deformation of the elastic member when the door is opened to a predetermined position. FIG. 14 is a diagram for explaining deformation of the elastic member when the door is closed from a predetermined position. FIG. 15 is a cross-sectional view showing a state in which the position of the engaging member is fixed by the operating portion. FIG. 16 is a perspective view showing a state in which the position of the engaging member is fixed by the operating portion. FIG. 17 is a cross-sectional view showing a state in which the operation of the operation unit is restricted by the lock mechanism. FIG. 18 is a diagram for explaining the operation of the door stopper according to the comparative example. FIG. 19 is a diagram for explaining the operation of the door stopper according to the comparative example.

Hereinafter, the present embodiment will be described with reference to the accompanying drawings. In order to facilitate understanding of the description, the same components are designated by the same reference numerals as possible in the drawings, and duplicate description is omitted.

The door stopper 10 according to the present embodiment is provided on a door that is a hinged door, and is a device for preventing the door from being opened too much beyond a predetermined position. FIG. 1 shows a door D provided with a door stopper 10.

As shown in the figure, the door stopper 10 has a door side mechanism portion 100 provided on the door D and a floor surface side mechanism portion 200 provided on the floor surface F. The "floor surface F" is a floor surface directly below a range in which the door D turns and moves when the door D is opened and closed.

The door-side mechanism portion 100 is provided at a position near the lower end portion of the door D and near the end portion on the side opposite to the hinge side (not shown). Therefore, the door-side mechanism unit 100 turns and moves together with the door D when the door D is opened and closed. The direction in which the door-side mechanism portion 100 moves when the door D is opened is also referred to as an "opening direction" below. The direction in which the door-side mechanism portion 100 moves when the door D is closed is also referred to as a "closing direction" below. As shown in FIG. 1, the door-side mechanism portion 100 is attached to the surface of the door D on the opening direction side.

The floor surface side mechanism portion 200 is provided at a position of the floor surface F immediately below the track through which the door side mechanism portion 100 passes when the door D is opened and closed. FIG. 1 shows a state in which the door D is being opened and immediately before the door side mechanism portion 100 reaches a position directly above the floor surface side mechanism portion 200.

When the door D is further opened from the state of FIG. 1, the door side mechanism portion 100 reaches a position directly above the floor surface side mechanism portion 200 as shown in FIG. As will be described in detail later, in the state of FIG. 2, a part of the door side mechanism portion 100 comes into contact with a part of the floor surface side mechanism portion 200, and the door D cannot be opened any more. As described above, the door stopper 10 is a device for preventing the door D from being opened too much beyond a predetermined position, but the position where the floor surface side mechanism portion 200 is provided is determined. It means the above "predetermined position".

First, the configuration of the floor surface side mechanism unit 200 will be described with reference to FIGS. 3 to 5. The floor surface side mechanism portion 200 includes a flap 210, a base 230, and a base cover 220.

The flap 210 is a member whose entire shape is formed into a plate shape, and is configured by combining the flap plate 211 and the shaft member 213. The flap plate 211 is a plate-shaped member formed of a magnetic material such as a cold rolled steel plate (SPCC). The shape of the main surface of the flap plate 211 is substantially rectangular. A rectangular through hole 212 is formed on the main surface of the flap plate 211 so as to vertically penetrate the flap plate 211.

The shaft member 213 is a member made of a resin material such as polyacetal (POM). A recess 213A (see FIG. 8) is formed in the shaft member 213. The flap plate 211 described above is held by the shaft member 213 in a state of being inserted into the recess. A pair of shafts 214 are formed so as to project outward from the end of the shaft member 213 on the side opposite to the side where the flap plate 211 is held. The shaft 214 is a substantially cylindrical shaft. The shaft 214 is held in a rotatable state by a bearing portion 231 provided on the base 230, which will be described later. Therefore, the flap 210 in which the flap plate 211 and the shaft member 213 are integrated is held by the base 230 in a state where it can swing in the vertical direction about the shaft 214.

FIG. 3 shows the floor side mechanism unit 200 in a state where the door D is not opened to the above-mentioned predetermined position, that is, when the door side mechanism unit 100 does not reach directly above the floor surface side mechanism unit 200. The state of is shown. In this state, the position of the flap 210 is the lowermost position in the movable range. At this time, the main surface of the flap 210 is parallel to the floor surface F.

FIG. 4 shows a state in which the door D is opened to the above-mentioned predetermined position, that is, a state of the floor surface side mechanism unit 200 when the door side mechanism unit 100 reaches directly above the floor surface side mechanism unit 200. Has been done. In this state, the flap plate 211 of the flap 210 is attracted upward by the magnet 130 included in the door-side mechanism portion 100. Therefore, the position of the flap 210 is the position on the uppermost side of the movable range. At this time, the main surface of the flap 210 is inclined with respect to the floor surface F.

As described above, the flap 210 is a plate-shaped member in which the flap plate 211, which is a part thereof, is formed of a magnetic material, and is held by the floor surface side mechanism portion 200 in a state of being swingable in the vertical direction. ing. It should be noted that the flap 210 may be entirely formed of a magnetic material instead of a part of the flap 210. That is, the portion of the flap 210 formed of the magnetic material may be at least a part.

The base 230 is a portion of the floor surface side mechanism portion 200 that is directly fixed to the floor surface F and holds the flap 210 in a swingable state as described above. Such a base 230 can be said to be a member that is arranged at a position on the lower side of the flap 210 and holds the flap 210. The base 230 is formed so as to form a substantially circular shape in a top view, and is formed of a resin material such as polyacetal (POM).

As shown in FIG. 5, the base 230 is formed with a bearing portion 231, a fixing hole 232, a convex portion 233, and a contact portion 234.

As described above, the bearing portion 231 is a portion that holds the shaft 214 of the flap 210 in a rotatable state. Such a bearing portion 231 can be formed, for example, as a recess for accommodating the shaft 214 inside. In this embodiment, the shaft 214 is provided toward the flap 210, and the bearing portion 231 that supports the shaft 214 is provided toward the base 230. Instead of such an embodiment, a shaft may be provided toward the base 230, and a bearing portion that supports the shaft may be provided toward the flap 210. In either configuration, the flap 210 will be supported by the base 230 in a vertically swingable state.

The fixing hole 232 is a through hole formed so as to penetrate the base 230 in the vertical direction. The fixing holes 232 are formed in two places so as to sandwich the central portion where the flap 210 is arranged. A set screw 240 is inserted into each fixing hole 232 from above. As a result, the entire floor surface side mechanism portion 200 including the base 230 is fixed to the floor surface F.

The convex portion 233 is a portion of the base 230 formed so as to project upward from the surface facing the flap 210. Of the surface, the convex portion 233 is formed on the portion of the flap plate 211 facing the through hole 212. The shape of the convex portion 233 in the top view is substantially the same as the shape of the through hole 212. As shown in FIG. 3, when the position of the flap 210 is the lowermost position in the movable range, the convex portion 233 is inserted into the inside of the through hole 212. Further, in this state, the floor surface side mechanism portion 200 is provided so that the upper end surface of the convex portion 233 and the upper surface of the flap 210 (specifically, the upper surface of the flap plate 211) are present on the same plane. The dimensions of each part of are adjusted. According to such a configuration, the portion of the through hole 212 becomes inconspicuous in the state of FIG. 3, so that the design of the floor surface side mechanism portion 200 can be enhanced.

As shown in FIG. 5, in addition to the above-mentioned convex portion 233, a contact portion 234 is also formed on the surface of the base 230 facing the flap 210. The contact portion 234 is formed so as to project upward, similarly to the convex portion 233. However, the amount of protrusion is smaller than the amount of protrusion of the convex portion 233. The contact portion 234 is formed at two locations so as to sandwich the convex portion 233 in between.

The contact portion 234 is a portion where the lower surface of the flap 210 (specifically, the lower surface of the flap plate 211) abuts when the position of the flap 210 is on the lowermost side as shown in FIG. .. In such a configuration, the flap 210 that has moved downward does not abut on the entire facing portion of the upper surface of the base 230, but only abuts on the abutting portion 234.

In the present embodiment, as described above, the contact portion 234 of the base 230 protrudes upward. In other words, in such a configuration, a recess 235 that retracts downward is provided in a portion of the base 230 that faces the flap 210 and is adjacent to the contact portion 234 that the flap 210 abuts. It can also be expressed as a formed composition.

The base cover 220 is a member for enhancing the design of the floor surface side mechanism portion 200 by covering the base 230 from the entire upper side. As shown in FIG. 5, the base cover 220 is formed with a substantially rectangular through hole 221 so as to penetrate the base cover 220 in the vertical direction. The flap 210 described above can swing in the vertical direction through the through hole 221.

Subsequently, the configuration of the door-side mechanism unit 100 will be described with reference to FIGS. 6 and 7. The door-side mechanism 100 includes a case 110, a cover 120, a magnet 130, a rotating body 150, and a leaf spring 140.

The case 110 is a portion of the door-side mechanism portion 100 that is directly fixed to the door D, and is a portion that holds a magnet 130, a rotating body 150, or the like, which will be described later, inside the case 110. As shown in FIG. 7, the case 110 is formed with a fixing hole 114. The fixing hole 114 is a through hole formed so as to penetrate the case 110 in the direction toward the door D. The fixing holes 114 are formed in two places so as to sandwich a portion in which the rotating body 150 described later is arranged. A set screw 170 is inserted into each fixing hole 114 toward the door D side. As a result, the entire door-side mechanism portion 100 including the case 110 is fixed to the door D.

A pair of holding walls 115 and 116 are formed in the case 110. The holding walls 115 and 116 are both substantially flat walls, and each is provided so as to be perpendicular to both the surface of the door D and the floor surface F. The holding walls 115 and 116 are separated from each other, and a space 117 is formed between them. The space 117 is a space for holding the leaf spring 140 and the rotating body 150, which will be described later.

The cover 120 is a member for enhancing the design of the door-side mechanism portion 100 by covering substantially the entire case 110 from the outside. The cover 120 is formed as a substantially rectangular parallelepiped container, but the portion on the door D side and the portion on the floor surface F side of the six surfaces are open.

The cover 120 is attached to the case 110 so as to be slidable in the vertical direction. Therefore, the user can perform an operation of grasping the cover 120 and sliding it in the vertical direction. The cover 120 has a function as an "operation unit" in the present embodiment in addition to the function of enhancing the design of the door side mechanism unit 100 as described above. As will be described later, when the cover 120, which is an operation unit, is operated and slides downward, the rotation of the rotating body 150 is suppressed. The purpose and the specific configuration for realizing the function will be described later.

The magnet 130 is a permanent magnet for pulling the flap 210 upward when the door D moves in the opening direction and the door side mechanism portion 100 reaches a position on the upper side of the floor surface side mechanism portion 200. .. The magnet 130 is held at a position near the lower end of the case 110. Although the VI-VI cross section of FIG. 1 is shown in FIG. 6, the magnet 130 is held at a position on the front side of the paper surface with respect to the cross section of FIG. The magnet 130 may be directly held by the case 110, but may be held by the case 110 together with the holder, for example, in a state of being housed in a resin holder.

When the door-side mechanism portion 100 reaches a position on the upper side of the floor surface-side mechanism portion 200, the flap 210 is pulled upward by the magnet 130 as shown in FIG. At this time, the flap 210 is in a state where its tip is in contact with the bottom surface 111 of the case 110. Since the position of the flap 210 in this state is the position that is the upper end of the movable range of the flap 210, the position is also referred to as the "upper end position" below. It can also be said that the magnet 130 is for pulling the flap 210 to a predetermined upper end position.

After the flap 210 is pulled to the upper end position, when the door D is closed and the door side mechanism portion 100 is separated from the position on the upper side of the floor surface side mechanism portion 200, the force from the magnet 130 is applied to the flap 210. It doesn't work. Therefore, as shown in FIG. 8, the flap 210 moves downward from the upper end position due to gravity, and is in a state of being in contact with the contact portion 234 described above.

The explanation will be continued by returning to FIGS. 6 and 7. The rotating body 150 is a member of the case 110 that is rotatably held in the space 117 between the holding wall 115 and the holding wall 116. The rotating body 150 has a pair of rotating shafts 151 formed so as to project toward each of the holding walls 115 and 116. The rotation shaft 151 is a substantially cylindrical shaft. One of the rotating shafts 151 is inserted into a groove (not shown) provided in the holding wall 115, and is held in a rotatably state around the central axis thereof. Similarly, the other rotating shaft 151 is inserted into a groove (not shown) provided in the holding wall 116, and is held in a rotatable state around its central axis. The central axes of the respective rotating shafts 151 coincide with each other, and the extending direction of the central axes is the direction perpendicular to each of the holding walls 115 and 116.

The rotating body 150 is formed with a first claw portion 152, a second claw portion 153, and an applied portion 154. All of these are protrusions formed so as to project in a direction away from the central axis when viewed along the central axis of the rotating shaft 151 as shown in FIG.

Both the first claw portion 152 and the second claw portion 153 are formed so as to substantially protrude downward. The first claw portion 152 is formed at a position closer to the door D than the second claw portion 153.

The applied portion 154 is formed so as to project substantially upward. The bent portion 142 of the leaf spring 140 described below is in contact with the tip of the applied portion 154. Therefore, the elastic force from the leaf spring 140 is always applied downward to the applied portion 154.

The leaf spring 140 is a resin leaf spring integrally formed with the case 110, and is provided at a position above the rotating body 150 in the case 110. The leaf spring 140 corresponds to the "elastic member" in the present embodiment. The leaf spring 140 has a straight portion 141 and a bent portion 142.

The straight line portion 141 is a portion formed so as to extend linearly along the vertical direction. As shown in FIG. 6, the straight portion 141 is held in a state where most of the straight portion 141 is in contact with the surface of the door D. A part of the straight line portion 141, specifically, the portion of the range AR1 shown in FIG. 13 is in a state of being integrally connected to the case 110, whereby the leaf spring 140 is held. Therefore, the leaf spring 140 can be elastically deformed only in the portion below the range AR1 shown in FIG. In such a configuration of the present embodiment, only the portion below the portion of the range AR1 among the portions with reference numerals 140 can be regarded as the “leaf spring 140”. The leaf spring 140 may be made of metal, and the leaf spring 140 may be mounted inside the case 110. Also in this case, the portion of the leaf spring 140 in the range AR1 shown in FIG. 13 is fixed to the case 110.

The bent portion 142 is a portion formed by bending a part of the leaf spring 140, and is formed so as to extend from the lower end portion of the straight portion 141 in a direction substantially opposite to the door D. Is. The bent portion 142 is gently bent as a whole so as to project toward the applied portion 154 provided on the rotating body 150. In the leaf spring 140, the bent portion 142 is brought into contact with the tip of the applied portion 154 in a state where the bent portion 142 is elastically deformed from a natural state to the upward side. Therefore, as described above, the elastic force from the leaf spring 140 is applied downward to the applied portion 154.

The operation of each part of the door stopper 10 when the door D is closed will be described. FIG. 8 shows a state in which the door D is being opened. In this state, the door side mechanism portion 100 is moving in the opening direction, but has not yet reached the position directly above the floor surface side mechanism portion 200. Since the force from the magnet 130 does not act on the flap 210, the flap 210 remains at the lower end of the movable range.

Further, in the state of FIG. 8, the applied portion 154 of the rotating body 150 is in contact with the position of the bent portion 142 that is relatively close to the straight portion 141. In this state, the force applied from the leaf spring 140 to the applied portion 154 acts to rotate the rotating body 150 in the clockwise direction in FIG. However, since the rotating body 150 has the second claw portion 153 in contact with a part of the case 110, the rotating body 150 does not further rotate in the clockwise direction from the state shown in FIG.

That is, the rotating body 150 in the state of FIG. 8 is in a state of being completely rotated to the position which is the end on the clockwise direction side in the range where the rotating body 150 can rotate around the rotating shaft 151. At this time, the lower end of the first claw portion 152 is lowered to a position further below the bottom surface 111 of the case 110. On the other hand, the lower end of the second claw portion 153 is located at substantially the same height as the bottom surface 111 of the case 110.

FIG. 9 shows a state in which the door D is further opened from the state of FIG. 8 and the door side mechanism portion 100 reaches the vicinity of the position directly above the floor surface side mechanism portion 200. When the door-side mechanism portion 100 reaches the position, the flap 210 is attracted by the force from the magnet 130 and swings upward to reach the upper end position described above. That is, the tip of the flap 210 is in contact with the bottom surface 111 of the case 110. Even after the flap 210 reaches the upper end position, the door D continues to move in the opening direction. Therefore, the tip of the flap 210 slides relatively toward the door D side while being in contact with the bottom surface 111 of the case 110.

While the tip of the flap 210 is sliding as described above, the tip of the flap 210 is in contact with the first claw portion 152 of the rotating body 150 as shown in FIG.

When the door D further moves in the opening direction from this state, the first claw portion 152 receives a force toward the door D by the tip of the flap 210. As a result, the rotating body 150 rotates in the counterclockwise direction in FIG. FIG. 10 shows a state after the rotating body 150 is rotated in the counterclockwise direction in this way.

Immediately after the rotating body 150 starts to rotate in the counterclockwise direction, a force in the clockwise direction is applied to the rotating body 150 by the leaf spring 140. Therefore, the movement of the door D in the opening direction is performed while resisting the force from the leaf spring 140.

After that, the rotating body 150 rotates in the counterclockwise direction, and the applied portion 154 of the rotating body 150 moves beyond a specific position in the bent portion 142 toward the tip portion side, and then is covered by the leaf spring 140. The direction of the force applied to the urging portion 154 is reversed. That is, the force from the leaf spring 140 acts to rotate the rotating body 150 in the counterclockwise direction in FIG. Therefore, the rotating body 150, which has been rotated in the counterclockwise direction by pushing the first claw portion 152 at the tip of the flap 210, is automatically rotated by the force from the leaf spring 140 after the door D is opened to some extent. It will rotate counterclockwise. Finally, the first claw portion 152 comes into contact with a part of the case 110, so that the rotation of the rotating body 150 is stopped.

A stop wall 113 is formed so as to project downward from a position of the bottom surface 111 of the case 110 near the end on the door D side. The tip of the flap 210 that has slid along the bottom surface 111 finally hits the stop wall 113. When the tip of the flap 210 comes into contact with the stop wall 113, the door D does not move any further in the opening direction. Therefore, the door D does not open too much beyond the position shown in FIG. That is, the position of the door D shown in FIG. 10 is the "predetermined position" described above. As shown in FIG. 6, a pair of reinforcing walls 112 are directed downward on both sides (both sides along the depth direction of the paper surface) of the bottom surface 111 in which the tip of the flap 210 abuts and slides. It is formed to protrude. The reinforcing wall 112 is provided for the purpose of reinforcing the stop wall 113 in preparation for an impact when the tip of the flap 210 comes into contact with the stop wall 113.

In the state of FIG. 10, the rotating body 150 is in a state of being completely rotated to the position which is the end on the counterclockwise direction side in the range where the rotating body 150 can rotate around the rotating shaft 151. In this state, the second claw portion 153 moves downward from the time shown in FIGS. 8 and 9. The lower end of the second claw portion 153 is lowered to a position further below the bottom surface 111 of the case 110, and penetrates into the inside of the through hole 212 of the flap 210.

FIG. 11 shows an enlarged configuration of the rotating body 150 and its vicinity in FIG. 10. “H1” shown in FIG. 11 indicates the height position of the upper end of the through hole 212 in the flap 210 in a state of being pulled to the upper end position. Further, "H2" shown in FIG. 11 indicates the height position of the lower end of the second claw portion 153 that has moved downward as described above.

As described above, in the states of FIGS. 10 and 11, the second claw portion 153 penetrates into the inside of the through hole 212. Therefore, H2 is in a lower position than H1. From this state, when the door D starts to be closed, the door D starts to move in the closing direction, that is, to the right side in FIG. Therefore, the second claw portion 153 that has entered the inside of the through hole 212 abuts on the edge 212A (see FIG. 11) of the through hole 212 in the flap 210, and thereafter clockwise in FIG. Trying to rotate in the direction.

However, in the state of FIG. 11, the applied portion 154 of the rotating body 150 receives a force from the leaf spring 140. As shown by the arrows in FIG. 11, the force acts in the direction of rotating the rotating body 150 in the counterclockwise direction. Therefore, while the force applied to the door D in the closing direction is smaller than the force from the leaf spring 140, the rotating body 150 does not rotate in the clockwise direction, and the state of FIG. 11 is maintained.

In this way, after the flap 210 is pulled to the upper end position, the second claw portion 153 of the rotating body 150 moves downward and enters the inside of the through hole 212 of the flap 210, and engages with the flap 210. By matching, the function of keeping the door D in the open state is exhibited. Such a second claw portion 153 corresponds to the "engaging member" in the present embodiment. As shown in FIG. 11, the position of the second claw portion 153 when it is in the state of being inserted into the through hole 212 is hereinafter also referred to as an “engagement position”.

The state in which the door D is held by the engagement between the second claw portion 153 and the flap 210 is continued as long as the force applied to the door D in the closing direction is relatively small. When the force applied to the door D in the closing direction becomes larger and the force becomes larger than the force from the leaf spring 140, the above-mentioned "state in which the door D is held" is released, and the door D moves to the closing direction. Move and close. Therefore, the door D in FIGS. 10 and 11 can be said to be in a “temporarily held” state.

The operation when a force in the closing direction is applied to the door D and the temporary holding is released will be described. Immediately after the door D starts to move from the state of FIG. 11 to the closing direction, a counterclockwise force is applied to the rotating body 150 from the leaf spring 140 as described above. The rotating body 150 begins to rotate in the clockwise direction while resisting the counterclockwise force received from the leaf spring 140.

After that, the rotating body 150 further rotates in the clockwise direction, and the applied portion 154 of the rotating body 150 moves beyond a specific position in the bent portion 142 to the straight portion 141 side, and then from the leaf spring 140. The direction of the force applied to the applied portion 154 is reversed again. That is, the force from the leaf spring 140 acts to rotate the rotating body 150 in the clockwise direction in FIG.

After such a force has begun to be applied to the rotating body 150, the rotating body 150 is quickly rotated clockwise by the force from the leaf spring 140 before receiving further force from the edge of the through hole 212. .. The second claw portion 153 at the engaging position moves upward and is in a state of being completely removed from the through hole 212. At this time, the rotating body 150 does not rotate any more by bringing the second claw portion 153 into contact with a part of the case 110. FIG. 12 shows the state of the door-side mechanism portion 100 at the time when the rotation of the rotating body 150 is stopped in this way. In the figure, the force received by the rotating body 150 from the leaf spring 140 is indicated by an arrow.

“H1” shown in FIG. 12 indicates the height position of the upper end of the through hole 212 in the flap 210 in a state of being pulled to the upper end position. This H1 is at the same position as H1 shown in FIG.

“H2” shown in FIG. 12 indicates the height position of the lower end of the second claw portion 153 that has moved upward as described above. This H2 is higher than H2 shown in FIG. 11 and higher than H1 shown in FIGS. 11 and 12. As described above, in the state of FIG. 12, the second claw portion 153 is cut out upward from the through hole 212, and the engagement between the second claw portion 153 and the flap 210 is released. Therefore, even if the door D is further closed from the state of FIG. 12 and the door side mechanism portion 100 moves to the closing direction side (right side in FIG. 12), the edge 212A of the through hole 212 is the second claw portion 153. Never hit. That is, the movement of the door D in the closing direction is not hindered. Since the position of the second claw portion 153 in FIG. 12 is the position where the engagement between the second claw portion 153 and the flap 210 is disengaged, this position is also referred to as a "disengagement position" below.

As described above, in the present embodiment, the door D is closed in the closing direction from the state in which the second claw portion 153, which is the engaging member, is engaged with the flap 210 in the state of being pulled to the upper end position (the state of FIG. 11). The door stopper 10 is configured so that the second claw portion 153 rises to a release position, which is a position where the second claw portion 153 does not engage with the flap 210 in a state of being pulled to the upper end position.

In order to show the advantage that the door stopper 10 is configured in this way, the configuration of the door stopper 10A according to the comparative example will be described with reference to FIG. The door stopper 10A according to the comparative example is different from the present embodiment in the configuration and operation of the rotating body 150, and is substantially the same as the present embodiment in other points.

FIG. 18A shows a state immediately after the door D starts to be closed from the state where the door D is held (temporarily held) at a predetermined position. As the door D begins to move toward the closing direction, the rotating body 150 also rotates in the clockwise direction in this comparative example. In the comparative example, only the second claw portion 153 is formed on the lower portion of the rotating body 150, and the first claw portion 152 is not formed.

In the state of FIG. 18A, a part of the rotating body 150 is in contact with the inner surface of the case 110, so that the rotating body 150 cannot rotate in the clockwise direction any more. However, the second claw portion 153 at this time is in a state of being inserted into the through hole 212 of the flap 210. That is, in this comparative example, the second claw portion 153, which is an engaging protrusion, is in a state in which further rotation is restricted before the entire portion of the second claw portion 153 is completely removed from the through hole 212.

When a force in the closing direction is further applied to the door D from the state of FIG. 18A, the second claw portion 153 is pressed against the edge of the through hole 212, and friction between the two is obtained. Power works. The flap 210 swings downward while resisting the frictional force, and finally, the engagement between the second claw portion 153 and the flap 210 is released. To the user who is performing the operation of closing the door D, the above frictional force is felt as a force necessary for releasing the holding of the door D.

FIG. 18B schematically depicts the configuration of the tip of the second claw portion 153 and its vicinity in FIG. 18A. In FIG. 18B, the reference numeral “153S” is attached to the surface of the second claw portion 153 facing the edge of the through hole 212 on the door D side. The surface is also referred to as "surface 153S" below.

Further, in FIG. 18B, the reference numeral “212S” is attached to the surface of the edge of the through hole 212 facing the surface 153S. The surface is also referred to as "surface 212S" below. The angle formed by the surfaces 153S and the surfaces 212S facing each other is θ1 in FIG. 18B.

In the example shown in FIG. 18, the distance L1 from the floor surface F to the door-side mechanism portion 100 is relatively small. Therefore, when the flap 210 is pulled to the upper end position, the inclination angle of the flap 210 with respect to the floor surface F is small, and as a result, the angle between the surface 153S and the surface 212S, θ1, is also small. ing. Since the door side mechanism portion 100 is fixed along the floor surface F, the above distance L1 can be said to be the distance from the floor surface side mechanism portion 200 to the door side mechanism portion 100.

In such a state, the above-mentioned frictional force acting between the surface 153S and the surface 212S becomes large, so that the force felt by the user as the force required to release the holding of the door D is relatively large. growing.

FIG. 19 shows an example in which the distance L2 from the floor surface F to the door side mechanism portion 100 is larger than the distance L1 in the example of FIG. 18 in the door stopper 10A according to the above comparative example. ing. As described above, the distance from the floor surface F to the door-side mechanism portion 100 may vary depending on the mounting state of the door D, the mounting position of the door-side mechanism portion 100 with respect to the door D, and the like.

In the example of FIG. 19, as the distance L2 increases, the inclination angle of the flap 210 with respect to the floor surface F also increases. As a result, as shown in FIG. 19B, the angle formed by the surface 153S and the surface 212S is θ2, which is larger than θ1.

In such a state, the frictional force acting between the surface 153S and the surface 212S is smaller than that in the example of FIG. Therefore, the magnitude of the force felt by the user as the force required to release the holding of the door D is relatively small.

As described above, in the door stopper 10A having the configuration according to the comparative example, when the distance from the floor surface F to the door side mechanism portion 100 changes, the user needs to release the holding of the door D accordingly. The magnitude of the force felt in the door also fluctuates. Such a change in the magnitude of the force is not preferable because it may give a sense of discomfort to the user.

On the other hand, in the present embodiment, as described above, the door D moves in the closing direction in the state where the second claw portion 153, which is the engaging member, is engaged with the flap 210 (the state shown in FIG. 11). Then, the second claw portion 153 rises to a release position, which is a position where the flap 210 is not engaged with the flap 210 in a state of being pulled to the upper end position. After the second claw portion 153 rises to the release position, even if the door D further moves in the closing direction, almost no frictional force is generated between the second claw portion 153 and the flap 210. Therefore, even if the height from the floor side mechanism portion 200 to the door side mechanism portion 100 changes, the magnitude of the force required to close the held door D does not change, and generally. It is kept constant. This makes it possible to reduce the discomfort given to the user.

The second claw portion 153, which is an engaging member, engages with the flap 210 by entering the through hole 212 formed in the flap 210 from above. The position of the second claw portion 153 is changed in the range from the release position on the upper side to the engagement position on the lower side. As described above with reference to FIG. 12, the release position is the position where the second claw portion 153 is pulled out upward from the through hole 212 formed in the flap 210 in the state of being pulled to the upper end position. Is. Since the second claw portion 153 is completely removed to such a release position, the frictional force generated between the edge of the through hole 212 and the second claw portion 153 can be completely eliminated. As a result, it is possible to more reliably prevent a change in the magnitude of the force required to close the held door D.

Further ingenuity in this embodiment will be described. FIG. 13 shows the state of the door-side mechanism portion 100 when the door D moves in the opening direction and the rotating body 150 rotates in the counterclockwise direction. At this time, the position of the second claw portion 153, which is an engaging member, changes from the disengaging position to the engaging position.

As described above, in the leaf spring 140, the portion of the straight portion 141 in the range AR1 is sandwiched from both sides by a part of the case 110 and the surface of the door D. Therefore, the leaf spring 140 can be elastically deformed only in the portion below the range AR1.

As shown by the arrows in FIG. 13, when the second claw portion 153 changes from the disengaged position to the lower engaging position, the rotating body 150 rotates in the counterclockwise direction. Along with this rotation, the leaf spring 140 is temporarily elastically deformed from the initial position shown by the dotted line DL1 to the position shown in FIG. Since such deformation of the leaf spring 140 occurs toward the side opposite to the door D side, it is not hindered by the door D. Point P1 in FIG. 13 indicates a position that serves as a fulcrum of the leaf spring 140 that is deformed as described above. Point P2 in FIG. 13 indicates a position that becomes an action point when a force is applied to the rotating body 150 by the elastically deformed leaf spring 140.

FIG. 14 shows the state of the door-side mechanism portion 100 when the door D moves in the closing direction opposite to that in FIG. 13 and the rotating body 150 rotates in the clockwise direction. At this time, the position of the second claw portion 153, which is an engaging member, changes from the engaging position to the disengaging position.

As shown by the arrows in FIG. 14, when the second claw portion 153 changes from the engaging position to the upper disengaging position, the rotating body 150 rotates in the clockwise direction. Along with this rotation, the leaf spring 140 is temporarily elastically deformed from the initial position shown by the dotted line DL2 to the position shown in FIG.

At this time, a force is applied to the leaf spring 140 from the rotating body 150 toward the door D side. However, since the straight portion 141 occupying most of the leaf spring 140 is supported in the range AR2 shown in FIG. 14 in a state of being in contact with the door D, it cannot be deformed toward the door D side. Therefore, the deformation of the leaf spring 140 in the state of FIG. 14 occurs so as to move the bent portion 142 upward. Also in FIG. 14, a point P1 which is a fulcrum of the deformable leaf spring 140 and a point P2 which is an action point when a force is applied to the rotating body 150 are shown. The position of the point P1 at this time is substantially equal to the position at the boundary between the straight line portion 141 and the bent portion b142.

As is clear from the comparison between FIGS. 13 and 14, the distance from the point P1 to the point P2 is larger in the case of FIG. 13 than in the case of FIG. Due to such a difference in distance, the magnitude of the force applied from the leaf spring 140 so as to hinder the operation of the second claw portion 153 changes to the engaging position on the lower side of the second claw portion 153. The case (FIG. 13) is smaller than the case where the second claw portion 153 changes to the upper release position (FIG. 14).

In other words, the leaf spring 140, which is an elastic member, has a force that should be applied to the door D by the user in order to change the second claw portion 153, which is an engaging member, from the disengaging position to the engaging position. A member that applies a force to the second claw portion 153 so that the force to be applied to the door D by the user in order to change the second claw portion 153 from the engaging position to the disengaging position is larger. Can be done. Such a difference in the magnitude of the force is perceived by the user as a difference in the response when operating the door D.

By configuring the leaf spring 140, which is an elastic member, as described above, the user can hold the door D with a small force when opening the door D, while the door D is held in the holding state. Can prevent the door D from being closed by an unexpected external force.

The door D partially supports a part of the leaf spring 140 from the side. In the range AR1 in FIG. 13 and the range AR2 in FIG. 14, the leaf spring 140 is supported by the door D, so that the elastic deformation of the leaf spring 140 in each range is suppressed. The portion of the door D that supports a part of the leaf spring 140 as described above corresponds to the "support member" in the present embodiment.

As described above, the door side mechanism portion 100 further includes a support member that supports a part of the leaf spring 140, and a part of the door D is used as the support member. When the door D, which is a support member, changes the second claw portion 153 from the disengagement position to the engagement position, the door D disengages the second claw portion 153 from the engagement position rather than the range AR1 that supports the leaf spring 140. The range AR2 that supports the leaf spring 140 is configured to be wider when changing to. As a result, the support member is provided with a configuration in which the magnitude of the force applied from the leaf spring 140 so as to hinder the operation of the second claw portion 153 changes as described above according to the operation direction of the second claw portion 153. This is easily realized.

As the support member, a part of the door D may be used as in the present embodiment, but for example, another member fixed to the case 110 may be used. However, when a part of the door D is used as a support member as in the present embodiment, the number of parts can be reduced and the structure of the door side mechanism portion 100 can be made simpler.

Other configurations of the door stopper 10 will be described. As shown in FIGS. 6 and 7, in the rotating body 150, the second claw portion 153, which is an engaging member, is formed with a protrusion 155 so as to project upward. Further, a recess 156 is formed between the protrusion 155 and the applied portion 154 so as to recede downward.

As shown in FIG. 6 and the like, a protrusion 121 protruding downward is formed inside the cover 120. The width dimension of the protrusion 121 is slightly smaller than the width dimension of the recess 156.

As shown in FIG. 10, when the door side mechanism portion 100 reaches a position on the floor surface side mechanism portion 200 upper side and the rotating body 150 rotates in the counterclockwise direction, that is, the second claw which is an engaging member. When the portion 153 is in the lower engaging position, the protrusion 121 of the cover 120 is located directly above the recess 156.

As described above, the cover 120 is attached to the case 110 so as to be slidable in the vertical direction. FIG. 15 shows a state after the cover 120 has slid downward from the state of FIG. 10. In the state of FIG. 15, the protrusion 121 also moves downward as the cover 120 slides, and enters the inside of the recess 156 of the rotating body 150. Therefore, in this state, the rotating body 150 cannot rotate, and the position of the second claw portion 153, which is an engaging member, is fixed to the engaging position.

From the state of FIG. 15, even if a force is applied to the door D in the closing direction, the rotation of the rotating body 150 is restricted, so that the engagement of the second claw portion 153 with the flap 210 is not released. Therefore, the door D is fixed at a predetermined position shown in FIG.

When the cover 120 slides downward, the display plate 160 hidden inside the cover 120 appears to the outside. As shown in FIG. 16, since the characters "LOCK" are engraved on the surface of the display board 160, the user recognizes that the position of the second claw portion 153 is fixed. can do.

When the user slides the cover 120 upward from the state shown in FIG. 15, the state returns to the state shown in FIG. As a result, the fixing of the position of the second claw portion 153 is released. Further, the display board 160 is hidden inside the cover 120 again. After that, when a force is applied to the door D in the closing direction, the engagement of the second claw portion 153 with the flap 210 is released, and the door moves in the closing direction.

As described above, the cover 120 of the door side mechanism portion 100 has a function as a portion operated by the user, that is, an "operation portion" in order to fix the position of the second claw portion 153 which is an engaging member. are doing. By having such an operation portion, the door stopper 10 can fix the position of the second claw portion 153 according to the operation of the user. As a result, even when a force in the closing direction is applied to the temporarily held door D, the door D can be maintained in a state of being held at a predetermined position.

By the way, when the door side mechanism portion 100 does not reach the position on the floor surface side mechanism portion 200 upper side, it is not preferable to fix the position of the second claw portion 153 as described above. For example, when the door D is in the position shown in FIG. 8, if the second claw portion 153 is fixed in a state of protruding to the lower engaging position, the door D is further moved in the opening direction. , The tip of the flap 210 strongly collides with the side surface of the second claw portion 153. As a result, the second claw portion 15 or the flap 210 may be damaged.

Therefore, the door stopper 10 according to the present embodiment is provided with a lock mechanism for locking the operation unit in order to prevent a collision between the members as described above. The locking mechanism will be described with reference to FIG.

In FIG. 17, when the door side mechanism portion 100 has not reached the position on the upper side of the floor surface side mechanism portion 200, and the position of the second claw portion 153 is not the engagement position ( That is, the state of the door side mechanism portion 100 at the time of the release position) is shown.

In the state of FIG. 17, the rotating body 150 is in a state of being completely rotated to the position which is the end on the clockwise direction side in the range where the rotating body 150 can rotate around the rotating shaft 151. In this state, the recess 156 does not exist at a position directly below the protrusion 121. The lower end portion of the protrusion 121 is in contact with the root portion of the protrusion 155 of the rotating body 150, specifically, the portion designated by the reference numeral 157 in FIG. Therefore, from the state of FIG. 17, the user cannot slide the cover 120 downward.

The portion designated by the reference numeral 157 in FIG. 17 is formed by cutting out a part of the protrusion 155 so as to have a horizontal surface in the state of FIG. 17 and to be in contact with the lower end of the protrusion 121. It can also be called a face. Both the protrusion 155 and the portion with the reference numeral 157 can be said to be a part of the second claw portion 153 which is an engaging member.

As described above, the door side mechanism portion 100 in the present embodiment has not reached the position where the door side mechanism portion 100 is on the upper side of the floor surface side mechanism portion 200, and the position of the second claw portion 153 is engaged. It has a lock mechanism for locking the cover 120 so that the cover 120, which is an operation unit, is not operated when the position is not set. In the present embodiment, the protrusion 121 and the protrusion 155 (particularly, the portion designated by the reference numeral 157 in FIG. 17) correspond to the above-mentioned locking mechanism. In the present embodiment, by providing such a locking mechanism, it is possible to prevent the door stopper 10 from being damaged as described above.

In the lock mechanism, the protrusion 121 provided on the cover 120, which is the operation portion, comes into contact with a part of the engaging member (the portion designated by the reference numeral 157 in FIG. 17) at the release position, whereby the operation of the operation portion is operated. Is configured to regulate. This makes it possible to physically regulate the operation of the operation unit.

The entire cover 120 including the protrusion 121 is formed by integral resin molding. That is, the protrusion 121 is integrally formed with the cover 120, which is an operation portion. This makes it possible to reduce the number of parts of the door stopper 10 as compared with the case where the protrusion 121 is configured as a separate member and attached to the cover 120.

The present embodiment has been described above with reference to specific examples. However, the present disclosure is not limited to these specific examples. These specific examples with appropriate design changes by those skilled in the art are also included in the scope of the present disclosure as long as they have the features of the present disclosure. Each element included in each of the above-mentioned specific examples, its arrangement, conditions, a shape, and the like are not limited to those exemplified, and can be appropriately changed. The combinations of the elements included in each of the above-mentioned specific examples can be appropriately changed as long as there is no technical contradiction.

D Door F Floor surface 10 Door stopper 100 Door side mechanism part 120 Cover (operation part)
121 Protrusion (lock mechanism)
130 Magnet 140 Leaf spring 150 Rotating body 152 First claw part 153 Second claw part (engagement member)
200 Floor side mechanism 210 Flap 212 Through hole

Claims (9)

A door stopper having a floor surface side mechanism portion provided on the floor surface and a door side mechanism portion provided on the door.
The floor side mechanism portion is
It is a plate-shaped member at least partially formed of a magnetic material, and has a flap that is held so as to be able to swing in the vertical direction.
The door side mechanism portion is
A magnet that pulls the flap to a predetermined upper end position when the door moves in the opening direction and the door side mechanism portion reaches a position on the upper side of the floor surface side mechanism portion.
It comprises an engaging member that engages with the flap and keeps the door open by moving to the lower engaging position after the flap is pulled to the upper end position.
When the door moves in the closing direction while the engaging member is engaged with the flap,
A door stopper configured so that the engaging member rises to a release position, which is a position where the engaging member does not engage with the flap in a state of being pulled to the upper end position. The engaging member engages with the flap by entering the through hole formed in the flap from above.
The door stopper according to claim 1, wherein the release position is a position where the engaging member is pulled out upward from the through hole formed in the flap in a state of being pulled to the upper end position. The door side mechanism portion is
The door stopper according to claim 1 or 2, further comprising an operating portion that is a portion operated by the user to fix the position of the engaging member. The door side mechanism portion is
When the door side mechanism portion has not reached the position on the upper side of the floor surface side mechanism portion and the position of the engagement member is not the engagement position, the operation to the operation portion is performed. The door stopper according to claim 3, further comprising a locking mechanism for locking the operation unit so as not to be performed. The lock mechanism is
The door according to claim 4, wherein the protrusion provided on the operation unit abuts on a part of the engagement member at the release position to regulate the operation of the operation unit. stopper. The door stopper according to claim 5, wherein the protrusion is integrally formed with the operation portion. The door side mechanism portion is
More than the force that should be applied to the door to change the engaging member from the disengaging position to the engaging position.
The invention further comprises an elastic member that applies a force to the engaging member so that the force to be applied to the door is greater in order to change the engaging member from the engaging position to the disengaging position. The door stopper according to any one of 1 to 6. The elastic member is a leaf spring.
The door side mechanism portion is
A support member that supports a part of the elastic member is further provided.
The support member is
When changing the engaging member from the disengaging position to the engaging position, the range of the leaf spring supported by the supporting member is larger than the range supported by the supporting member.
The seventh aspect of claim 7, wherein when the engaging member is changed from the engaging position to the disengaging position, the range of the leaf spring supported by the supporting member is wider. Door stopper. The door stopper according to claim 8, wherein a part of the door is used as the support member.

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