JP7164796B2 - Simple lock for indoor door - Google Patents

Description

TECHNICAL FIELD The present invention relates to a simple indoor door lock for locking the opening and closing of an indoor door.

There are many indoor doors that do not have locks between rooms, or between rooms and corridors. There are many types of locks on the market that can be retrofitted to such doors for the purpose of crime prevention. For example, in Patent Document 1, a locking member holding piece that protrudes in the outdoor direction is attached to an inward-opening hinged door via a mounting portion, and a locking member is attached to the tip side of the locking member holding piece. The locking member holding piece and the mounting portion are configured to be separable inside the room, and when the locking member is in the locked state, the locking member holding piece and the mounting portion are locked. A room lock technology has been disclosed that enables the parts to be separated and unlocked inside the room.

However, it may be necessary to prevent children and pets from opening and closing the door for a short period of time, for example, when going to the front door to pick up mail or parcels or while cooking in the kitchen. In order to cope with such a case, it is an exaggeration to attach a post-installed key, and a simpler locking method is desired.

Patent Document 2 describes a small bifurcated clamp made by bending a long plate for the purpose of providing a door lock for preventing pets such as dogs and cats from entering a room. , a pet door lock technology is disclosed in which magnet portions are provided on the outside of the side surfaces, respectively, and the tip portions of the clamps are cut obliquely.

Further, Patent Document 3 discloses a door stopper for the purpose of reliably preventing small animals such as cats and dogs from opening and closing the door against the intention of the breeder. A door stopper provided with a wedge-shaped member for fixing a door by being inserted between the door plate and the floor, wherein a thin plate-shaped member is provided so as to extend to the acute-angled portion side of the wedge-shaped member, and when the door is fixed, the door plate and the floor are separated. A door stopper technique is disclosed in which a thin plate-like member is projected from a gap to the opposite side of the door.

Utility Model Registration No. 3225629 Japanese Patent Application Laid-Open No. 2012-52400 Utility Model Registration No. 3209085

However, the pet door lock described in Patent Document 2 can be unlocked only from the side attached to the door, which is inconvenient when there are multiple people who need to open and close the door to enter and exit. Further, the door stopper described in Patent Document 3 can be installed and removed from the opposite side of the door, but cannot be used when there is a frame at the bottom of the door.

Further, the pet door lock described in Patent Document 2 and the door stopper described in Patent Document 3 are installed at positions where even children can operate them, so it is impossible to prevent children from operating them. Also, although they are compatible with hinged doors, they are not compatible with sliding doors.

The present invention has been made in view of such circumstances. To provide a simple indoor door lock applicable to both hinged doors and sliding doors.

(1) In order to achieve the above objects, the present invention takes the following measures. That is, the indoor door simple lock of the present invention is a simple indoor door lock for locking the opening and closing of an indoor door, comprising a main body extending from the inner surface to the outer surface of the indoor door, and the main body that can be operated from the inside of the indoor door. an inner operating part provided on a main body, an outer operating part provided on the main body so as to be operable from the outside of the indoor door, and a frame of the indoor door, etc., by operating the inner operating part or the outer operating part. and a lock part that locks the opening and closing of the indoor door by coming into contact with the crosspiece, pillar, or wall of the indoor door.

As a result, the indoor door can be easily locked, and can be operated from both the inside and outside of the indoor door. can. In addition, the installation position can be above or above the side of the indoor door, so that it can be installed in a position where it is difficult for children and pets to operate.

(2) Further, in the indoor door simple lock of the present invention, the inner operating portion and the outer operating portion are fixed to the main body.

Thereby, the hinged door can be easily locked. In addition, the installation position can be set above the indoor door, making it difficult for children and pets to operate.

(3) Further, in the indoor door simple lock of the present invention, the inner operating portion and the outer operating portion are connected via an operating portion connecting portion extending from the inner surface to the outer surface of the indoor door, and the lock portion one locking member and a second locking member, the first locking member having one end connected to the body by a first hinge portion, and the second locking member having one end is connected to either the inner operating portion or the outer operating portion by a second hinge portion, and the first locking member and the second locking member are respectively connected to the first hinge portion and the second hinge portion. is connected by a third hinge portion, and the lock portion does not lock the opening and closing of the indoor door. Then, the first locking member and the second locking member rotate about the first hinge portion, the second hinge portion, and the third hinge portion as rotation axes, and the third locking member rotates. The first lock member and the second lock member rise in a direction away from the surface of the indoor door with the hinge portion as the apex, whereby the lock portion becomes a lock shape that locks opening and closing of the indoor door. In the configuration, when the inner operating portion or the outer operating portion is slid in a direction opposite to the predetermined direction, the first locking member and the second locking member are moved to the first hinge portion and the second locking member. The first lock member and the second lock member rotating about the second hinge portion and the third hinge portion as rotation axes and rising with the third hinge portion as the apex are moved to the surface of the indoor door. The unlocking configuration is obtained by lying in a direction close to the .

Thereby, the sliding door can be easily locked. In addition, the installation position can be above the side of the indoor door, making it difficult for children and pets to operate.

(4) Further, in the indoor door simple lock of the present invention, the inner operation part and the outer operation part are connected to a connection shaft provided on the main body on the inner surface side of the indoor door, and the lock part is: A convex portion is provided that can move to a position that can be accommodated in a plane formed by the main body on the inner surface side of the indoor door and a position that protrudes from the plane by rotation of the connection shaft, and the convex portion of the lock portion is located on the plane. In the unlocking configuration that fits inside and does not lock the opening and closing of the indoor door, when the inner operation part or the outer operation part is operated to rotate the connection shaft in a predetermined direction, the convex part of the lock part A lock shape protrudes from a plane and locks the opening and closing of the indoor door. In the lock shape, when the inner operating part or the outer operating part is operated to rotate the connecting shaft in a direction opposite to the predetermined direction, It is characterized in that the convex portion of the locking portion fits into the plane and becomes the unlocking shape.

Thereby, the sliding door can be easily locked. In addition, the installation position can be above the side of the indoor door, making it difficult for children and pets to operate.

According to the simple indoor door lock of the present invention, the door can be easily locked, it can be operated from both sides of the door, it can be installed in a position where it is difficult for children and pets to operate, and it can be used as a hinged door or a sliding door. can also be made available.

1 is a perspective view of a simple indoor door lock according to a first embodiment; FIG. (a) to (d) are respectively a plan view, a right side view, a front view, and a rear view of the indoor door simple lock according to the first embodiment. (a) to (c) are schematic diagrams showing how the indoor door simple lock according to the first embodiment is installed on the hinged door when locked and unlocked, and how the hinged door is opened when unlocked, respectively. . (a) and (b) are respectively a perspective view of a simple indoor door lock according to a second embodiment in an unlocked configuration and a perspective view of a locked configuration. (a) to (d) are a plan view, a right side view, a front view, and a rear view of the indoor door simple lock according to the second embodiment, respectively, in an unlocked configuration. (a) to (c) are a plan view, a front view, and a rear view, respectively, of the simple indoor door lock according to the second embodiment in the lock configuration. (a) to (c) are schematic diagrams showing how the indoor door simple lock according to the second embodiment is installed on the sliding door in the locked mode, in the unlocked mode, and how the sliding door is opened in the unlocked mode, respectively. is. 11(a) and 11(b) are a perspective view of a simple indoor door lock according to a third embodiment in an unlocked configuration and a perspective view of a locked configuration, respectively. (a) to (d) are a plan view, a left side view, a right side view, and a front view of the simple indoor door lock according to the third embodiment, respectively, in an unlocked configuration. (a) to (d) are a plan view, a left side view, a right side view, and a front view, respectively, of the simple indoor door lock according to the third embodiment at the time of lock configuration. (a) to (c) are schematic diagrams showing how the indoor door simple lock according to the third embodiment is installed on the hinged door in the locked configuration, in the unlocked configuration, and how the sliding door is opened in the unlocked configuration, respectively. It is a diagram. FIG. 11 is a plan view of a modification of the indoor door simple lock according to the third embodiment in a locked configuration;

The inventors of the present invention formed the main body of a simple lock for indoor doors into a shape extending from the inner surface to the outer surface of the indoor door, and provided operation parts on the inside and outside of the door, so that it could be operated from the inside or the outside of the door. The inventors have found that a simple lock for an indoor door can be installed at a position where it is difficult for children to operate it, resulting in the present invention. BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[First embodiment]
(Structure of simple lock for indoor door)
FIG. 1 is a perspective view of a simple indoor door lock according to this embodiment. 2A to 2D are a plan view, a right side view, a front view, and a rear view, respectively, of the indoor door simple lock according to the present embodiment. The indoor door simple lock 10 according to this embodiment includes a main body 12 , an inner operating portion 14 , an outer operating portion 16 and a lock portion 18 .

The main body 12 is formed in a shape extending from the inner surface of the indoor door to the screen. The body 12 can be formed, for example, in a U-shape, as shown in FIG. Even when the indoor door is closed, there are some gaps at the top and sides. By forming the main body 12 connected at 12c, the main body 12 can extend from the inner surface to the outer surface of the indoor door. In addition, the inner surface, outer surface, inner side, and outer side of the indoor door are defined formally, and the installation direction of the inside and outside of the room and the simple lock for the indoor door is not fixed. Therefore, the indoor door simple lock 10 may be arranged such that the main body 12a on the inner side of the indoor door is outside the room and the main body 12b on the outer side is inside the room.

The length of the main body connecting portion 12c of the main body 12 is preferably variable. Thereby, the indoor door simple lock 10 can be used for indoor doors of various thicknesses.

The inside operation part 14 is provided on the main body 12 so as to be operable from the inside of the indoor door. In this embodiment, the inner operation unit 14 is provided on the main body 12a on the inner surface side of the indoor door, and operates the indoor door simple lock 10 . Further, the outer operation part 16 is provided on the main body 12 so as to be operable from the outside of the indoor door. In this embodiment, the outer operation unit 16 is provided on the main body 12b on the outer surface side of the indoor door, and operates the indoor door simple lock 10 . As a result, the indoor door simple lock 10 can be operated from the inside or the outside of the indoor door by the inside operation part 14 or the outside operation part 16. - 特許庁

The lock portion 18 locks the opening and closing of the indoor door by coming into contact with the frame of the indoor door, the crosspiece of another indoor door, the pillar, or the wall by the operation of the inner operating portion 14 or the outer operating portion 16 . FIGS. 3A to 3C are schematic diagrams showing how the indoor door simple lock according to the present embodiment is installed on the hinged door when locked and unlocked, and how the hinged door is opened when unlocked, respectively. . FIG. 3 shows the hinged door viewed from above. As shown in FIG. 3, the indoor door simple lock 10 according to the present embodiment is assumed to be used as an indoor door by being installed on the top of a hinged door. Thereby, the indoor door simple lock 10 can be installed on the upper part of the hinged door, and can be installed at a position out of reach of children.

In the indoor door simple lock 10 according to this embodiment, it is preferable that the inner operating portion 14 and the outer operating portion 16 are fixed to the main body 12 . As a result, when the indoor door simple lock 10 is used for a hinged door, when the inner operation part 14 or the outer operation part 16 is slid, the main body 12 slides relative to the hinged door, whereby the lock part 18 opens and closes the indoor door. or to a position for unlocking the opening/closing of the indoor door, the structure of the indoor door simple lock 10 can be simplified and its operation can be facilitated.

Further, when the inner operating portion 14 and the outer operating portion 16 are not fixed to the main body 12, the locking portion 18 projects by sliding the inner operating portion 14 or the outer operating portion 16 with respect to the main body 12. It may be. As a result, although the structure of the indoor door simple lock 10 becomes complicated, it is not necessary to slide the main body 12, so the possibility of damaging the door is reduced.

The indoor door simple lock 10 shown in FIGS. 1 and 2 is provided with a lock portion 18 and an outer operation portion 16 on both the left and right sides. This makes it compatible with both right-handed and left-handed hinged doors. Note that the locking portion 18 and the outer operating portion 16 may be provided on either the left or right side, or may be configured to be attached to either the left or right side.

It is preferable that the distance between the abutment portion of the locking portion 18 and the main body 12 is variable. As a result, the indoor door simple lock 10 can be used for hinged doors with various distances from the hinged door to the frame of the hinged door, the pillar, or the wall.

It is preferable that the locking portion 18 or the main body 12 be configured so that a portion of the locking portion 18 or the main body 12 can be disengaged when a force of a predetermined magnitude or more is applied, thereby releasing the closed state of the indoor door. Thus, in an emergency, a person who does not know that the indoor door simple lock 10 is used can apply a strong force to the indoor door to open the indoor door. Even with such a configuration, it is possible to achieve the object of the present invention to prevent children or pets from opening and closing the indoor door for a short period of time.

[Second embodiment]
(Structure of simple lock for indoor door)
FIGS. 4(a) and 4(b) are a perspective view of the indoor door simple lock according to the present embodiment in unlocking configuration and a perspective view of locking configuration, respectively. 5(a) to (d) are a plan view, a right side view, a front view, and a rear view of the simple indoor door lock according to the present embodiment, respectively, in the unlocked configuration. 6(a) to (c) are respectively a plan view, a front view and a rear view of the indoor door simple lock according to the present embodiment at the time of lock configuration. An indoor door simple lock 20 according to this embodiment has a basic configuration similar to that of the first embodiment, and includes a main body 12 , an inner operating section 14 , an outer operating section 16 and a lock section 18 . The indoor door simple lock 20 changes its shape between a locking shape and an unlocking shape.

The main body 12 is formed in a shape extending from the inner surface to the outer surface of the indoor door. The main body 12 can be formed in a U-shape, for example, as shown in FIGS. 4(a) and 4(b). Even when the indoor door is in a closed state, there are some gaps in the upper part and the side part. As such, by configuring at least the main body 12b on the outer surface side, the outer operating part 16, and the locking part 18 thin enough to pass through the gap in the unlocked configuration, the main body 12 can be made to extend from the inner surface to the outer surface of the indoor door. . Also in this embodiment, the inner surface, outer surface, inner side, and outer side of the indoor door are defined formally, and the installation direction of the inside and outside of the room and the indoor door simple lock is not fixed. Therefore, the indoor door simple lock 20 may be arranged such that the main body 12a on the inner side of the indoor door is outside the room, and the main body 12b on the outer side is inside the room.

The length of the main body connecting portion 12c of the main body 12 is preferably variable. Thereby, the indoor door simple lock 20 can be used for indoor doors of various thicknesses. Further, since the indoor door simple lock 20 of the present embodiment is installed on the side of the door, it is preferable that the main body 12 has elasticity and is biased in the direction of gripping the door. Moreover, it is preferable that the surface of the main body 12 that contacts the door is provided with a non-slip surface. As a result, the indoor door simple lock 20 can be installed at a predetermined position on the side of the sliding door, for example, above where children cannot reach.

The inside operation part 14 is provided on the main body 12 so as to be operable from the inside of the indoor door. In this embodiment, the inner operation part 14 is provided so as to form substantially the same plane as the main body 12a on the inner surface side of the indoor door, and a convex part for hooking a finger or the like is formed. Thereby, the indoor door simple lock 20 is operated. Further, the outer operation part 16 is provided on the main body 12 so as to be operable from the outside of the indoor door. In this embodiment, the outer operation part 16 is provided so as to form substantially the same plane as the main body 12b on the outer surface side of the indoor door, and a convex part for hooking a finger or the like is formed. Thereby, the indoor door simple lock 20 is operated. Thereby, the indoor door simple lock 20 can be operated from the inside or the outside of the indoor door by the inside operation part 14 or the outside operation part 16 .

In the indoor door simple lock 20 according to the present embodiment, the inner operating portion 14 and the outer operating portion 16 are preferably connected via the operating portion connecting portion 15 extending from the inner surface to the outer surface of the indoor door. The inner operating portion 14, the operating portion connecting portion 15, and the outer operating portion 16 can be formed in a U-shape as a whole, for example, as shown in FIGS. 4(a) and 4(b). The outline of the operation in this case will be described later.

The lock portion 18 locks the opening and closing of the indoor door by coming into contact with the frame of the indoor door, the crosspiece of another indoor door, the pillar, or the wall by the operation of the inner operating portion 14 or the outer operating portion 16 . FIGS. 7A to 7C are schematic diagrams showing how the indoor door simple lock according to the present embodiment is installed on a sliding door in the locking mode, in the unlocking mode, and how the sliding door is opened in the unlocking mode, respectively. is. FIG. 7 shows a state seen from above the sliding door. As shown in FIGS. 7A to 7C, the indoor door simple lock 20 according to the present embodiment is assumed to be used as an indoor door by being installed on the side of a sliding door.

The lock portion 18 includes a first lock member 21 and a second lock member 22. One end of the first lock member 21 is connected to the main body 12 by a first hinge portion 24, and a second Lock member 22 is connected at one end to either outer operating portion 16 or inner operating portion 14 by second hinge portion 26, and first locking member 21 and second locking member 22 are each connected to It is preferable that the ends of the side facing the first hinge portion 24 and the second hinge portion 26 are connected by the third hinge portion 28 .

As a result, when the outer operation portion 16 or the inner operation portion 14 is slid in a predetermined direction in the unlocked configuration in which the lock portion 18 does not lock the opening and closing of the indoor door, the first lock member 21 and the second lock member 22 are opened. rotates around the first hinge portion 24, the second hinge portion 26, and the third hinge portion 28, and rotates around the third hinge portion 28 as the apex of the first lock member 21 and the second lock member 21. When the member 22 rises in the direction away from the surface of the indoor door, the lock portion can have a lock shape capable of locking the opening and closing of the indoor door.

In addition, in the lock configuration in which the lock portion 18 can lock the opening and closing of the indoor door, when the outer operation portion 16 or the inner operation portion 14 is slid in a direction opposite to the predetermined direction, the first lock member 21 and the second lock are opened. The member 22 rotates around the first hinge portion 24, the second hinge portion 26, and the third hinge portion 28, and the first lock member 21 rises with the third hinge portion 28 as the apex. Also, the second locking member 22 lies in a direction close to the surface of the indoor door, so that the locking portion 18 can take an unlocking configuration that does not lock the opening and closing of the indoor door.

As a result, even if it is a sliding door, the locking part 18 formed by the first locking member 21 and the second locking member 22 abuts against the crosspiece, pillar, or wall of another indoor door, thereby opening and closing the indoor door. can be locked. The predetermined direction may be opposite to the example shown in FIGS. 4(a) and 4(b).

It is preferable that the locking part 18 or the main body 12 has a structure that can release the closed state of the indoor door by partially releasing or taking an unlocking shape when a force of a predetermined magnitude or more is applied. Thus, in an emergency, a person who does not know that the indoor door simple lock 20 is used can apply a strong force to the indoor door to open the indoor door. The simple indoor door lock 20 according to this embodiment can also achieve the object of the present invention, which is to prevent children or pets from opening and closing the indoor door for a short period of time, even with such a configuration.

[Third embodiment]
(Structure of simple lock for indoor door)
8(a) and 8(b) are a perspective view of the indoor door simple lock according to the present embodiment in unlocking configuration and a perspective view of locking configuration, respectively. 9A to 9D are a plan view, a left side view, a right side view, and a front view of the simple indoor door lock according to the present embodiment, respectively, in the unlocked configuration. 10(a) to (d) are a plan view, a left side view, a right side view, and a front view of the indoor door simple lock according to the present embodiment, respectively, in the lock configuration. An indoor door simple lock 30 according to this embodiment has a basic configuration similar to that of the first embodiment, and includes a main body 12 , an inner operating section 14 , an outer operating section 16 and a lock section 18 . The indoor door simple lock 30 changes its shape between a locking shape and an unlocking shape.

The main body 12 is formed in a shape extending from the inner surface to the outer surface of the indoor door. The main body 12 can be formed in a U-shape, for example, as shown in FIGS. 8(a) and (b). Even when the indoor door is in a closed state, there are some gaps in the upper part and the side part. As such, by configuring at least the main body 12a on the inner side, the inner operation part 14, and the lock part 18 thin enough to pass through the gap in the unlocked configuration, the main body 12 can be made to extend from the inner surface to the outer surface of the indoor door. . Also in this embodiment, the inner surface, outer surface, inner side, and outer side of the indoor door are defined formally, and the installation direction of the inside and outside of the room and the indoor door simple lock is not fixed. Therefore, the indoor door simple lock 30 may be arranged such that the main body 12a on the inner side of the indoor door is outside the room and the main body 12b on the outer side is inside the room.

The length of the main body connecting portion 12c of the main body 12 is preferably variable. Thereby, the indoor door simple lock 30 can be used for indoor doors of various thicknesses. Further, since the indoor door simple lock 30 of this embodiment is installed on the side of the door, it is preferable that the main body 12 has elasticity and is biased in the direction of gripping the door. Moreover, it is preferable that the surface of the main body 12 that contacts the door is provided with a non-slip surface. As a result, the indoor door simple lock 30 can be installed at a predetermined position on the side of the sliding door, for example, above where children cannot reach.

The inside operation part 14 is provided on the main body 12 so as to be operable from the inside of the indoor door. In this embodiment, the inner operation unit 14 is provided on the main body 12a on the inner surface side of the indoor door, and operates the indoor door simple lock 30 . Further, the outer operation part 16 is provided on the main body 12 so as to be operable from the outside of the indoor door. In this embodiment, the outer operation unit 16 is provided on the main body connecting portion 12c of the indoor door and operates the indoor door simple lock 30 . As a result, the indoor door simple lock 30 can be operated from the inside or the outside of the indoor door by the inside operation part 14 or the outside operation part 16 .

In the indoor door simple lock 30 according to the present embodiment, the inner operating portion 14 and the outer operating portion 16 are preferably connected to a connection shaft 32 provided on the main body 12a on the inner surface side of the indoor door. The inner operating section 14 and the outer operating section 16 are rotatably connected about a connecting shaft 32 as shown in FIGS. 8A and 8B, for example. The outline of the operation in this case will be described later.

The inner operating portion 14 may be formed integrally with the locking portion 18 . Thereby, the structure of the indoor door simple lock 30 can be simplified. The inner operation part 14 is formed separately from the lock part 18, and is formed at the tip of an arm having a predetermined length, for example, like the outer operation part 16 shown in FIGS. may This allows easy operation with a small force.

The lock portion 18 locks the opening and closing of the indoor door by coming into contact with the frame of the indoor door, the crosspiece of another indoor door, the pillar, or the wall by the operation of the inner operating portion 14 or the outer operating portion 16 . FIGS. 11(a) to 11(c) respectively show how the indoor door simple lock according to the present embodiment is installed on a sliding door (shoji) in the locking configuration, in the unlocking configuration, and how the sliding door is opened in the unlocking configuration. It is a schematic diagram showing. FIG. 10 shows the sliding door viewed from above. As shown in FIGS. 11(a) to 11(c), the indoor door simple lock 30 according to the present embodiment is assumed to be used as an indoor door by being installed on the side of a shoji. By changing the shape of the convex portion 34, which will be described later, as shown in FIG. 12, it is possible to make the shape used for a sliding door such as a sliding door or a wooden door. FIG. 12 is a plan view of a modification of the indoor door simple lock 30 according to the third embodiment in a lock configuration.

Moreover, it is preferable that the locking portion 18 has a convex portion 34 that can move to a position where it can be accommodated in the plane formed by the main body 12a on the inner surface side of the indoor door and a position that protrudes from the plane by rotating the connecting shaft 32 .

As a result, in the unlocking configuration in which the convex portion 34 of the lock portion 18 fits within the plane and does not lock the opening and closing of the indoor door, the inner operating portion 14 or the outer operating portion 16 is operated to rotate the connecting shaft 32 in a predetermined direction. Then, the convex portion 34 of the lock portion 18 protrudes from the plane to form a lock shape that locks the opening and closing of the indoor door. In the locked configuration, when the inner operating portion 14 or the outer operating portion 16 is operated to rotate the connecting shaft 32 in a direction opposite to the predetermined direction, the convex portion 34 of the locking portion 18 settles on the plane and the unlock configuration is achieved. can become

As a result, even if it is a sliding door, the opening and closing of the indoor door can be locked by contacting the projecting portion 34 of the locking portion 18 with the crosspiece, pillar, or wall of another indoor door. The predetermined direction may be opposite to the example shown in FIGS. 8(a) and 8(b), or there may be a plurality of positions where the lock shape or unlock shape is obtained. The inner operating portion 14, the outer operating portion 16, or the connecting shaft 32 has a shape in which the positions of the locking shape and the unlocking shape can be easily recognized, or a structure that is lightly fixed at the positions of the locking shape and the unlocking shape. is preferred.

The protrusions 34 may be formed on both sides of the connection shaft 32 . In the present embodiment, since the protrusions 34 also serve as the inner operation part 14, they are formed on both sides of the connection shaft 32, thereby facilitating operation from the inside. Even with such a shape, there is no problem in installing it on a sliding door shaped like a shoji.

On the other hand, as shown in FIG. 12, the convex portion 34 may be formed only in one direction around the connecting shaft 32 . By doing so, it can be installed not only on a shoji but also on a sliding door shaped like a fusuma or a wooden door. In such a case, the inner operating part 14 is formed separately from the locking part 18, and is attached to the tip of the arm of a predetermined length, for example, like the outer operating part 16 shown in FIGS. 8(a) and 8(b). It is preferable to form the

It is preferable that the locking part 18 or the main body 12 has a structure that can release the closed state of the indoor door by partially releasing or taking an unlocking shape when a force of a predetermined magnitude or more is applied. Thus, in an emergency, a person who does not know that the indoor door simple lock 30 is used can apply a strong force to the indoor door to open the indoor door. The simple indoor door lock 30 according to the present embodiment can also achieve the object of the present invention, which is to prevent children or pets from opening and closing the indoor door for a short period of time, even with such a configuration.

In addition to the above embodiments, for example, in a simple indoor door lock for a double door, the body 12 can be locked by straddling two double doors. You may have

The simple indoor door lock of the present invention can be made of various materials such as plastic, metal, and wood. is preferred. It may also be made of FRP (Fiber-Reinforced Plastics) or the like. Moreover, it is preferable to form a portion that needs to be thinned and a portion that operates repeatedly, such as a hinge, from metal.

Note that the above-described embodiment is an example, and the present invention is not limited to this. Also, features of each embodiment may be applied to other embodiments.

As described above, the simple indoor door lock of the present invention can easily lock the door, can be operated from both sides of the door, can be installed in a position where it is difficult for children and pets to operate, and can be used for hinged doors. can also be used for sliding doors.

10, 20, 30 indoor door simple lock 12 main body 12a inner main body 12b outer main body 12c main body connection portion 14 inner operation portion 15 operation portion connection portion 16 outer operation portion 18 lock portion 21 first lock member 22 second 2 lock member 24 first hinge portion 26 second hinge portion 28 third hinge portion 32 connection shaft 34 convex portion

Claims (4)

A simple indoor door lock for locking opening and closing of an indoor door,
a main body extending from the inner surface to the outer surface of the indoor door;
an inner operation unit provided on the main body so as to be operable from the inside of the indoor door;
an outer operation section provided on the main body so as to be operable from the outside of the indoor door;
a lock unit that locks opening and closing of the indoor door by coming into contact with a frame of the indoor door, a crosspiece of another indoor door, a pillar, or a wall by operating the inner operating unit or the outer operating unit;,
The inner operation part and the outer operation part are connected via an operation part connection part extending from the inner surface to the outer surface of the indoor door,
The lock portion includes a first lock member and a second lock member,
one end of the first lock member is connected to the main body by a first hinge,
one end of the second lock member is connected to either one of the inner operating portion or the outer operating portion by a second hinge portion;
The first locking member and the second locking member are connected by a third hinge portion at the ends thereof facing the first hinge portion and the second hinge portion, respectively;
In the unlocking configuration in which the locking portion does not lock the opening and closing of the indoor door, when the inner operating portion or the outer operating portion is slid in a predetermined direction, the first locking member and the second locking member The first locking member and the second locking member rotate about the first hinge portion, the second hinge portion, and the third hinge portion as rotation axes, and the third hinge portion as a vertex. rises in a direction away from the surface of the indoor door so that the lock portion becomes a lock-shaped body that locks the opening and closing of the indoor door,
In the lock configuration, when the inner operating portion or the outer operating portion is slid in a direction opposite to the predetermined direction, the first locking member and the second locking member are coupled to the first hinge portion, The first locking member and the second locking member, which rotate about the second hinge portion and the third hinge portion as rotation axes and stand up with the third hinge portion as a vertex, are connected to the indoor door. The unlocking configuration is achieved by lying in a direction close to the plane of A simple lock for indoor doors characterized by: A simple indoor door lock for locking opening and closing of an indoor door,
a main body extending from the inner surface to the outer surface of the indoor door;
an inner operation unit provided on the main body so as to be operable from the inside of the indoor door;
an outer operation section provided on the main body so as to be operable from the outside of the indoor door;
a lock unit that locks opening and closing of the indoor door by coming into contact with a frame of the indoor door, a crosspiece of another indoor door, a pillar, or a wall by operating the inner operating unit or the outer operating unit;,
The inner operating section and the outer operating section are fixed to the main body,
The lock portion or the main body is partially disengaged and the indoor door is unlocked when a force greater than or equal to a predetermined magnitude is applied. A simple lock for indoor doors characterized by: A simple indoor door lock for locking opening and closing of an indoor door,
a main body extending from the inner surface to the outer surface of the indoor door;
an inner operation unit provided on the main body so as to be operable from the inside of the indoor door;
an outer operation section provided on the main body so as to be operable from the outside of the indoor door;
a lock unit that locks opening and closing of the indoor door by coming into contact with a frame of the indoor door, a crosspiece of another indoor door, a pillar, or a wall by operating the inner operating unit or the outer operating unit;,
When the inner operating part and the outer operating part are slid with respect to the main body, the lock part protrudes in the sliding direction to form a lock shape that locks the opening and closing of the indoor door. A simple lock for indoor doors characterized by: A simple indoor door lock for locking opening and closing of an indoor door,
a main body extending from the inner surface to the outer surface of the indoor door;
an inner operation unit provided on the main body so as to be operable from the inside of the indoor door;
an outer operation section provided on the main body so as to be operable from the outside of the indoor door;
a lock unit that locks opening and closing of the indoor door by coming into contact with a frame of the indoor door, a crosspiece of another indoor door, a pillar, or a wall by operating the inner operating unit or the outer operating unit;,
The inner operation part and the outer operation part are connected to a connection shaft provided on the main body on the inner surface side of the indoor door,
The locking part has a convex part that can move to a position that can be accommodated in a plane formed by the main body on the inner surface side of the indoor door and a position that protrudes from the plane by rotation of the connection shaft,
In the unlocking configuration in which the convex portion of the lock portion fits within the plane and does not lock the opening and closing of the indoor door, when the inner operating portion or the outer operating portion is operated to rotate the connecting shaft in a predetermined direction, , the convex portion of the lock portion protrudes from the plane to form a lock shape that locks opening and closing of the indoor door,
In the lock configuration, when the inner operating portion or the outer operating portion is operated to rotate the connecting shaft in a direction opposite to the predetermined direction, the projection of the lock portion fits into the plane and the unlocking is performed. take shape,
The locking part or the main body is partially disengaged or assumes the unlocking shape when a force of a predetermined magnitude or more is applied, and the indoor door is unlocked. A simple lock for an inner door characterized by:

Images