JP3493351B2 - Locking tool and door stopper using the locking tool - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a locking tool and a door stopper using the locking tool, and more particularly to a locking tool that can be locked and unlocked by a predetermined operation. , And a door stopper using a locking tool.

[0002]

2. Description of the Related Art Conventionally, a locking member attached to either a fixed member or a fixed member is used to perform a predetermined operation to engage and disengage an engaging member attached to the other member. It has been known. For example, when the fixed member is a wall surface and the fixed member is an open door, a door stopper or the like that locks a door contact member provided on the open door and holds the open door in an open state may be used as the locking tool. Further, there is also known an earthquake-proof locking device which is provided on one of the furniture and the wall surface, holds the connection state with the wall surface, and prevents the furniture from falling down in the event of a disaster such as an earthquake.

As an example of the door stopper, an upward hook is provided at the lower part of the hinged door, a door stopper member having a downward hook is provided on the floor corresponding to the hinge, and further inside the door stopper member. A device provided with a cam mechanism for changing the height of the hook (for example, Japanese Patent Laid-Open No. 10-169285), or a flexible stopper member having a stopper piece is provided at the lower part of the hinged door. On the floor surface, a door contact member provided with a door stopper piece for locking the stopper piece is provided, and a movable body for unlocking the stopper piece can be rocked on the door contact member. Has been proposed (for example, Japanese Patent Laid-Open No. 9-256716).

[0004]

However, the above-mentioned door stopper requires a troublesome operation in order to unlock or unlock the hinged door. More specifically, in the case where the door contact member is provided with the cam mechanism inside, it is necessary to perform the operation of stepping on the upper surface of the door contact member in order to engage the hook with the hook portion. In particular, when the door stop member is arranged near the wall surface, the foot must be inserted into the gap between the wall surface and the swing door, that is, a relatively narrow gap, when the stepping operation on the door stop member is performed. Was difficult.

Further, since the cam mechanism, the spring and the like are provided inside the door contact member, the internal structure is complicated and the manufacturing cost is considerably high. Furthermore, since the door stop member is installed in a state of protruding on the floor surface,
Occasionally, residents would stumble or interfere with cleaning.

On the other hand, in the case where the flexible stopper member is provided, it can be naturally locked to the door contact member only by opening the hinged door, but it can be locked or unlocked. It is necessary to bend the flexible stopper member, and each time it is used, a bending force is applied to the stopper member, which may cause damage. Further, even in the locked state, if a force in the closing direction is applied to the hinged door, the stopper member may bend and the locking may be released. Therefore, when leaning against the hinged door, the locking may be released regardless of the resident's intention, and the hinged door may move in the closing direction. Further, in the same manner as in the conventional example described above, when the door contact member is arranged near the wall surface, when pressing the movable body of the door contact member, the foot must be inserted into the gap between the wall surface and the open door. It was difficult to operate. Further, since this door contact member is also installed in a state of projecting on the floor surface, the occupant may stumbled or hindered cleaning.

In view of the above situation, it is an object of the present invention to provide a locking tool that can be locked and unlocked without requiring a troublesome operation, and a door stopper using the locking tool. .

[0008]

In order to solve the above-mentioned problems, the locking device according to the invention of claim 1 is mounted on either one of a fixed member and a fixed member and has a locking piece. A locking tool capable of locking a member and locking and unlocking the locking member by a predetermined operation, the support member, a locking guide portion formed on a peripheral surface, and Between a movable body that has a lock receiving portion that locks the locking piece and is swingably supported by the support member via a movable shaft, and the lock piece between the lock receiving portion. A rotary body that has a lock holding claw that is sandwiched by and locked by the movable body and is rotatably supported by the movable body via a rotary shaft; and the movable body that is axially supported by the support member as a reference position. A movable body urging means for urging the locking holding claw to a locking holding position;
The locking with the locking member is performed by displacing the movable body from the reference position to the movable body displacement position against the movable body urging means by the locking piece that is in contact with the locking guide portion. One locking step, a second locking step of rotating the rotating body against the bias of the rotating body biasing means by the locking piece, and the rotating body rotated by the second locking step Achieved by a third locking step in which the locking piece is inserted into a gap formed between the locking holding claw and the locking receiving portion of the movable body, and the movable body returns to the reference position, The locking with the locking member is released by a first releasing step of displacing the rotating body against the rotating body urging means by the locking piece held by the locking holding claw, and the rotation. By the locking piece abutting on the peripheral surface of the moving body, It is intended to be achieved by the second release step of displacing against the movable member to the movable member urging means.

The term "engagement tool" as used herein means one that is attached to either one of a fixed member and a fixed member, and is capable of engaging an engagement member attached to the other, for example, a door stopper. And so on. Further, the fixed member or the fixed member is a device to which the locking member and the locking member are attached, and in the door stopper, the hinged door corresponds to the fixed member and the wall surface corresponds to the fixed member. That is, by locking the hinged door to the wall surface, it is possible to maintain the open state of the hinged door.

Therefore, according to the locking tool of the first aspect of the present invention, there is provided the support member, which is attached to either the fixed member or the fixed member, and the movable body pivotally supported by the support member. , And a rotating body rotatably supported by a movable body. Here, in order to lock the locking tool and the locking member, first, the locking piece of the locking member attached to the other of the fixed member and the fixed member is formed on the peripheral surface of the movable body. Abutting against the locking guide part. The locking guide portion serves as a guide for guiding the locking piece to the locking receiving portion of the movable body, and is formed obliquely downward with respect to the locking direction. The locking direction is
In order to simplify the description, the horizontal direction is used here. Therefore, the locking piece in contact with the locking guiding portion reaches the locking holding claw of the rotating body while sliding along the locking guiding portion. At this time,
Since the movable body is pivotally supported by the movable body supporting portion so as to be swingable, the movable body is pushed upward by the locking piece and displaced from the reference position to the movable body displacement position (first locking step).

Then, the locking piece that has reached the tip of the locking holding claw rotates the rotating body against the bias of the rotating body biasing means (second locking step). At this time, a slight space is formed between the lock receiving portion of the movable body and the lock holding claw of the rotating body. The locking piece is inserted into this space and locked by the lock receiving portion (third locking step). At this time, by stopping the force applied in the direction in which the locking piece is locked, the locking holding claw of the rotating body that has been rotated against the rotating body urging means is locked again. Attempt to return to the holding position. As a result, the locking piece is sandwiched between the locking holding claw and the locking receiving portion, and the locking is held. At this time, even if the locking piece is pulled in the direction opposite to the locking direction (the direction in which the locking piece is moved away from the locking tool), the locking is not released.

On the other hand, in the case of releasing the locking, a force is further applied in the locking direction described above to rotate the rotating body against the rotating body urging means by the locking piece. As a result, the locking of the locking piece by the locking holding claw is released (first releasing step). Then, a force in the direction opposite to the direction of engaging the engaging piece between the rotating body and the support member is applied. At this time, the locking piece abuts on the peripheral surface of the rotating body and slides, and pushes up the movable body biased by the movable body biasing means together with the rotating body (second releasing step). This allows
The locking piece passes below the rotary body and separates from the locking tool, and the locking is released.

According to a second aspect of the present invention, there is provided the locking tool according to the first aspect, wherein the rotating body urging means extends along a circumference substantially coinciding with a rotating direction of the rotating body. A hole formed in the movable body, a connecting member that is inserted into the hole and connects a pair of the rotating bodies while sandwiching the movable body, and a hole formed in the hole. A rotating body urging spring that is inserted and urges the connecting member to one end of the drilled hole.

Therefore, according to the locking tool of the second aspect of the invention, in addition to the function of the locking tool of the first aspect of the invention, the locking tool is movable along the circumference substantially coinciding with the rotating direction of the rotating body. A rotating body urging spring is inserted into a hole formed in the body, and a connecting member that connects a pair of rotating bodies with the movable body sandwiched in the hole is inserted into the body. The coupling member is biased to one end of the drilled hole by the. This makes it possible to urge the rotating body, and since the rotating body urging means is housed inside the movable body, a compact locking tool can be obtained. Furthermore, since it has a pair of rotating bodies, it can be reliably locked and unlocked by a locking tool.

According to a third aspect of the present invention, there is provided a locking tool according to the first or second aspect, wherein the locking piece has a substantially U-shaped hook portion. The receiving portion has a peripheral surface shape that can be engaged with the hook portion.

Therefore, according to the locking tool of the third aspect of the invention, in addition to the function of the locking tool of the first or second aspect of the invention, the locking piece has a hook portion having a substantially U-shape. Further, a peripheral surface shape capable of engaging with the hook portion is further formed on the lock receiving portion. As a result, the engagement between the hook portion and the engagement receiving portion of the engagement piece is further ensured.

According to another aspect of the present invention, there is provided a door stopper using a locking tool, which locks a door-stop member having a locking piece attached to one of a hinged door and a wall surface to open the hinged door. A door stopper using the locking tool according to any one of claims 1 to 3 for holding, wherein the locking tool is provided on the other of the hinged door or the wall surface via the support member. It is fixed.

Therefore, according to the door stopper using the engaging member of the invention of claim 4, claims 1 to 3 are provided.
The locking tool described in any one of the above is used as a door stopper. With this, the door stopper that acts as the above-described locking tool can hold and release the hinged door by a predetermined operation.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION A door stopper 1 which is an embodiment of the present invention will be described below with reference to FIGS. 1 to 5. 1 is a perspective view showing the vicinity of an entrance / exit to which a door stopper 1 according to an embodiment of the present invention is attached.
Is an enlarged perspective view showing the structure of the door stopper 1, FIG. 3 is a side view showing the structure of the movable body of the door stopper 1, and FIGS. 4 and 5 are explanatory views showing how to use the door stopper 1. is there.

As shown in FIGS. 1 and 2, the door stopper 1 of the present embodiment has a substantially U-shaped hook portion 3 attached to the upper end of the hinged door 2 by an attachment member (not shown) such as a screw. The door stop member 5 having the formed locking piece 4 is locked to hold the hinged door 2 in an open state, and is attached to the wall surface 6 facing the hinged door 2. In addition, the hinged door 2 is attached to the doorway of the room by a hinge 7, and by opening and holding (rotating) the knob 8,
The doorway can be opened.

More specifically, FIG. 2 and FIG.
As shown in FIG. 1, the door stopper 1 of the present embodiment is attached to the wall surface 6 via a supporting member 9 by a mounting member (not shown) such as a screw, and the supporting member 9 has a pair of members spaced from each other. The movable body supporting portions 10a and 10b are vertically provided. The movable body support portions 10a and 10b have an L-shaped cross section, and are formed such that one surface of the L-shaped portion abuts the support member 9. Further, a rotating body 20 to be described later is provided on a part of the peripheral surface of the movable body supporting portions 10a and 10b.
Substantially arcuate recesses are formed which can be inscribed in the peripheral surfaces of a and 20b. Then, the pair of movable body supporting portions 10a, 1
0b, a part of which is inserted between the locking guide portion 11 and the hook portion 3 of the locking piece 4 which are formed on a part of the peripheral surface, and the lock receiving portion 12 which can be locked. The rocking | fluctuation control part 13 which contact | abutted to the support member 9 and the notch part 14 which notched the upper part of the rocking | fluctuation control part 13 diagonally are provided, and it can rock | fluctuate via the movable shaft 15 to the movable body support parts 10a and 10b. The movable body 16 pivotally supported by the movable body 16 and the locking holding claw 17 that holds the locking formed at a position overlapping with the locking receiving portion 12 are provided on both side surfaces 18a and 18b of the movable body 16.
And a pair of rotating bodies 20a and 20b that are rotatably supported by a rotating shaft 19. The movable body support portions 10a and 10b and the movable body 16 are provided with movable shaft holes 21 and 22 for inserting and supporting the movable shaft 15, respectively. On the other hand, the movable body 16 and the rotating body 20 have rotating shaft holes 23 and 24 for inserting and supporting the rotating shaft 19 therein.
Are drilled respectively.

Further, the support member 9 has a biasing spring hole 25.
And a biasing spring receiving hole 26 is drilled in the notch 14 of the movable body 16 facing the biasing spring hole 25. Then, the bias spring hole 25 and the bias spring receiving hole 26.
A movable body biasing spring 27 is attached between the two.

Further, the movable body 16 has a side surface of the movable body 16 along a circumference substantially coinciding with the rotating directions of the rotating bodies 20a and 20b around the rotating shaft 19 and the rotating shaft hole 23. 18
A perforated hole 28 is formed penetrating through a and 18b. Further, a connecting member 29 which is inserted into the hole 28 and connects the pair of rotating bodies 20a and 20b with the movable body 16 sandwiched between the connecting member 29 and the rotating body urging force inserted along the hole 28. A spring 30 and a rubber member 31 that covers the peripheral surface of the connecting member 29 that abuts the rotating body biasing spring 30 are provided. Here, the rubber member 31 is the connecting member 2
It is provided for smooth sliding when the sliding member 9 slides along the hole 28 against the urging force of the rotating body urging spring 30.

Here, the door stopper 1 corresponds to the locking member in the present invention, the door contact member 5 corresponds to the locking member in the present invention, the wall surface 6 corresponds to the fixing member in the present invention, and the hinged door 2 is. It corresponds to the fixed member in the present invention.
Further, the notch portion 14, the biasing spring hole 25, the biasing spring receiving hole 2
6 and the movable body urging spring 27 correspond to the movable body urging means in the present invention, and the hole 28, the connecting member 29, the rotating body urging spring 30, and the rubber member 31 urge the rotating body urging in the present invention. It corresponds to the means.

In the door stopper 1 of this embodiment, the material of each member is not particularly limited,
It is desirable to set it in consideration of mechanical strength, weight, cost and the like, and for example, it is preferable to mold from synthetic resin or metal such as aluminum.

Next, a method of using the door stopper 1 of this embodiment will be described with reference to FIGS. 4 and 5. First, a method of opening (locking) the hinged door 2 will be described. The door stopper 1 and the door stop member 5 are attached to predetermined positions of the wall surface 6 and the hinged door 2 which face each other. At this time, the movable body 16 of the door stopper 1 is in a state of being urged to the reference position A by the swinging restricting portion 13 and the movable body urging spring 27. On the other hand, the rotating body 20a is urged to the lock holding position R by the rotating body urging spring 30 (FIG. 4A). Although FIG. 4 and FIG. 5 show the movement of the rotating body 20a, the rotating body 20b provided at a position facing each other with the movable body 16 interposed therebetween also has the rotating body 20a.
The same movement is being made in conjunction with.

First, an opening operation for opening the hinged door 2 with the knob 8 is performed, and the door stopper member 5 having the locking piece 4 is performed.
To the door stopper 1 (corresponding to the left direction in the figure). Then, one end of the locking piece 4 contacts the locking guide portion 11 formed on the peripheral surface of the movable member 16. Lock guide part 1
Since 1 is formed obliquely downward with respect to the locking direction (obliquely upper right in the figure), the locking piece 4 slides on the peripheral surface of the locking guide portion 11 while rotating body 20a. The tip of the locking and holding claw 17 is reached. At this time, since the movable body 16 is swingably supported by the movable supporting portions 10a and 10b, the movable body 16 is displaced to the movable body displacement position B in which the movable body 16 is pushed upward (FIG. 4 ( b): First locking step).

Then, the locking piece 4 that has reached the tip of the locking and holding claw 17 is further pushed by pushing the locking and holding claw 17 further.
The rotating body 20a pivotally supported by the movable body 16 is rotated (clockwise direction in the figure: second locking step). When a space in which the locking piece 4 can be locked is formed between the locking holding claw 17 and the locking receiving portion 12, the movable body urging spring 27 causes the movable body 16 to move to the reference position A. Return to. And
By stopping the opening operation of the hinged door 2, the hook portion 3 of the locking piece 4 is locked to the locking receiving portion 12 (FIG. 4 (c): third locking step). At this time, a force acts to urge the lock holding claw 17 formed on the rotating body 20a to the lock holding position R, so that the lock holding claw 17 and the lock receiving portion 12 cause the lock piece 4 to move.
And the lock is held. In this state, even if a force in the direction opposite to the opening operation of the hinged door 2 (that is, the closing operation: corresponding to the right direction in the figure) is applied to the locking piece 4, the hook 3 of the locking piece 4 moves the movable body Since the swing of 16 is limited, the lock is not released. Therefore, the hinged door 2 can be naturally opened by performing a normal opening operation. Further, in this state, even if a force is applied in the direction of the wall surface 6, since the locking holding claw 17 is biased to the locking holding position R, the hinged door 2 does not move easily.

Next, a method of releasing the locking will be described. When in the locked state shown in FIG. 4C, the locking piece 4 is further pressed toward the wall surface 6 to which the door stopper 1 is attached (corresponding to the left direction in the drawing). Then, the rotating body 20a pushed by the locking piece 4 rotates against the bias of the rotating body biasing spring 30. Then, the rotating body 20
When a is rotated to the lock release position U, the lock by the lock holding claw 17 is released (FIG. 5A: first release step). After that, the locking piece 4 between the wall surface 6 and the rotating body 20a closes the hinged door 2 (corresponding to the right direction in the drawing).
Then, while sliding on the peripheral surface of the rotating body 20a, the movable body 16 is pushed up to the movable body displacement position B against the bias of the movable body biasing spring 27 (FIG. 5 (b): Second release step). As a result, the locking piece 4 passes under the rotating body 20a and is separated from the door stopper 1 (see FIG. 5).
(C)). That is, the state (FIG. 4A) before the opening operation is performed is returned to.

As described above, the door stopper 1 of this embodiment can hold the door 2 in an open state by locking the door contact member 5 attached to the door 2. At this time, in order to bring it into the open state, the same opening operation as usual is performed. That is, no special operation for locking is required. Further, since the open state of the hinged door 2 is held in a state in which the locking piece 4 is sandwiched by the lock holding claw 17 and the lock receiving portion 12, the hinged door 2 is held stably when the hinged door 2 is opened. That is, since swinging of the hinged door 2 is suppressed, it does not collide with the wall surface 6 and generate abnormal noise.

Also, when the operation of releasing the locking is performed, the hinged door 2 is further pushed toward the wall surface 6 and the locking piece 4 is pushed.
Is removed from the holding by the lock holding claw 17 of the rotating body 20a,
Then, the hinged door 2 can be released by pulling it in a direction away from the wall surface 6 (normal closing operation). In other words, locking and unlocking can be performed by a simple operation that can be performed with one hand.

The present invention has been described above with reference to the preferred embodiments, but the present invention is not limited to these embodiments, and as shown below, within the scope not departing from the gist of the present invention. Various improvements and design changes are possible.

That is, in the present embodiment, the one used as the door stopper 1 for holding the hinged door 2 in the open state is shown as an example of the locking tool, but the invention is not limited to this, and the furniture and the wall surface are used. Can be used as a preventive device to prevent furniture from collapsing in the event of a disaster such as an earthquake. Further, the mounting direction is also shown to be locked and released in the horizontal direction, but it is not limited to this, and for example, two fixing members may be locked in the vertical direction. .

Further, a protective case for covering and protecting the door stopper 1 may be provided. This will not spoil the aesthetics of the room. Furthermore, the movable body 16 and the rotating bodies 20a and 20b are invaded by dust or dust.
It does not hinder the swinging and rotating of the. This allows
The locking and unlocking operations of the door stopper 1 are stable. Further, a cushioning member formed of hard rubber or the like may be attached to the locking piece 4 to reduce the collision with the wall surface 6. As a result, it is possible to prevent the locking piece 4 from being scratched by the collision with the wall surface 6.

Further, the locking piece 4 may be provided with an elastic member formed of a spring or the like. Door stopper 1 of this embodiment
In, for example, when a child or the like opens the hinged door 2 vigorously, the locking piece 4 is not locked to the receiving portion 12, and the wall surface 6 and the rotating bodies 20a and 20b are passed through the first releasing step.
There is a possibility that you will enter directly between. Therefore, an elastic member such as a spring may be provided at a position facing the wall surface 6 of the locking piece 4 and a restraining means may be provided so that the locking cannot be released unless a force of a certain pressure or more is applied. .

[0036]

As described above, the locking tool according to the first aspect of the invention can lock the locking member attached to either the fixed member or the fixed member. For example, when the locking tool is attached to the wall surface facing the hinged door to which the locking member is attached, the door is naturally locked by the normal opening operation and the opening of the hinged door is maintained. Furthermore, when unlocking the door, push the hinge door toward the wall once
After that, it is only necessary to close the hinged door, and even if one hand is blocked by luggage or the like, it can be easily released. That is, it is not necessary to perform a troublesome operation, and locking and unlocking can be easily performed.

In addition to the effect of the locking tool of the invention of claim 1, the locking tool of the invention of claim 2 is formed in a state where the rotating body urging means is housed inside the movable body. The entire fastener can be made compact. Furthermore, since the pair of rotating bodies are formed so as to sandwich the movable body, the locking pieces can be locked and unlocked reliably.

According to a third aspect of the invention, in addition to the effect of the first or second aspect of the invention, the locking piece has a hook portion having a substantially U-shape. Since the receiving portion is formed to have a peripheral surface shape that substantially matches the hook portion, the locking is more firmly held by the locking piece and the locking receiving portion.

A door stopper using the locking device of the invention of claim 4 uses the locking device according to any one of claims 1 to 3 as a door stopper to open the hinged door. It can be held and the open state can be released by an easy operation.

[Brief description of drawings]

FIG. 1 is a perspective view showing the vicinity of an entrance / exit to which a door stopper according to an embodiment is attached.

FIG. 2 is an enlarged perspective view showing the configuration of a door stopper.

FIG. 3 is a side view showing a configuration of a movable body of a door stopper.

FIG. 4 is an explanatory diagram showing a method of using the door stopper.

FIG. 5 is an explanatory diagram showing a method of using the door stopper.

[Explanation of symbols]

1 Door stopper (locking tool) 2 Swing door (fixed member) 3 Hook 4 locking pieces 5 Door contact member (locking member) 6 Wall surface (fixing member) 9 Support members 11 Lock induction part 12 Lock receiving part 15 Movable axis 16 movable body 17 Lock holding claw 19 rotation axis 20a, 20b rotating body 27 Movable body urging spring (movable body urging means) 28 Holes (Rotating body urging means) 29 Connection member (rotating body urging means) 30 Rotating body urging spring (rotating body urging means) A reference position B Movable body displacement position R Lock holding position U Unlocked position

Claims (4)

(57) [Claims] 1. A locking member having a locking piece, which is attached to either a fixed member or a fixed member, and locks and unlocks the locking member by a predetermined operation. A locking tool capable of locking a support member, a locking guide portion formed on a peripheral surface, and a locking receiving portion for locking the locking piece, and the supporting member via a movable shaft. And a lock holding claw for sandwiching and locking the locking piece between the locking receiving portion and the movable body, and the movable body is connected to the movable body via a rotary shaft. A rotatable body that is pivotally supported, a movable body biasing unit that biases the movable body that is axially supported by the support member to a reference position, and a biasing force of the locking holding claw to a locking holding position. And a movable body urging means for moving the movable body to move the movable body by the locking piece that is in contact with the locking guide portion. A first locking step of displacing from the reference position to the movable body displacement position against the biasing means; rotating the rotary body against the bias by the rotary body biasing means by the locking piece; The locking piece is inserted into a gap formed between the locking holding claw of the rotating body rotated by the second locking step and the second locking step and the locking receiving portion of the movable body. The release of the engagement with the engagement member is achieved by a third engagement step in which the movable body returns to the reference position. By the first releasing step of displacing the rotating body urging means, and the locking piece abutting on the peripheral surface of the rotating body, the movable body and the movable body are urged against the movable body urging means. Achieved by the second release step Fastener, wherein the door. 2. The rotating body urging means is provided with a hole formed in the movable body along a circumference substantially coinciding with a rotating direction of the rotating body, and inserted into the hole. And a connecting member that connects the pair of rotating bodies while sandwiching the movable body, and a rotating body biasing member that is inserted into the drilling hole and biases the connecting member to one end of the drilling hole. The locking device according to claim 1, further comprising a spring. 3. The locking piece has a substantially U-shaped hook portion, and the lock receiving portion has a peripheral surface shape capable of engaging with the hook portion. Alternatively, the locking device according to claim 2. 4. The door stop member having a locking piece attached to either the hinged door or the wall surface is locked to hold the hinged door in an open state. A door stopper using the locking device described in claim 1, wherein the locking device is fixed to the other of the hinged door or the wall surface.