JP5480606B2 - Swing door - Google Patents

Description

  The present invention relates to a swing door.

  For example, in a convenience store, employees need to go in and out of a cashier counter for replenishment of goods, maintenance, cleaning of the store, etc. The door is usually provided with a swing door. In addition, a register is installed at the cashier counter, and for crime prevention, it is necessary to prevent the customer from entering the cashier counter on the cash storage side of this cashier. There are some that cannot be opened from the open area side.

  Conventionally, there are various types of swing doors that consider such crime prevention, such as the opening device described in Patent Document 1, but the swing doors themselves from the open area side to the restricted area side. None had a simple configuration that could prevent intrusion.

JP 2007-77761 A

  Such an opening device is intended for crime prevention to prevent entry into the restricted area from the open area, but has a complicated locking structure and is used to open and close the passage of the cashier counter that frequently enters and exits. There is a problem that it is not suitable.

  This invention is made | formed in view of such a subject, and it aims at providing the swing door which prevented the approach to a restricted area from an open area, and was excellent in the crime prevention surface by simple structure.

  The present invention adopts the following means in order to achieve the above-mentioned object.

The swing door of the present invention (Claim 1) is a swing door that is provided between an open area and a restricted area and partitions the open area and the restricted area so as to be openable and closable.
A rotatable main body, a locking rod that penetrates the main body up and down, and is operated from the restricted area side, and an upper and lower part of the main body, respectively, are provided on the outer peripheral portion, and a rotation restraining recess And a biasing member that biases the locking rod toward the hinge member,
The locking bar is locked in the rotation restraining recess when the swing door is closed. When the main body portion rotates, the locking bar separates from the rotation restraining recess and follows the outer peripheral portion of the hinge member. It is a swing door characterized by moving.

  In this swing door, the swing door moves between an open state and a closed state as the main body rotates. At this time, a hinge member provided at the upper part and the lower part of the main body part and having a rotation restraining recess in the outer peripheral part, a locking bar penetrating the main body part up and down, and the locking bar is biased toward the hinge member When the swing door is in the closed state, the main body is positioned in the closed state (closed position) by fitting the locking rod into the rotation stop recess. With such a simple configuration, the open area and the restricted area can be partitioned to be opened and closed. At this time, since the locking rod is operated from the restricted area side, it can be said that the crime prevention surface is also excellent. By doing so, it is possible to prevent the intrusion from the open area to the restricted area, and to provide a swing door that has a simple structure and has an excellent crime prevention surface. Here, the “swing door closed state” is a state where the open area and the restricted area are partitioned by the swing door, and the “swing door open state” means that the swing door is approximately 90 from the closed state. This is a state in which the open area and the restricted area are not partitioned.

  In the swing door of the present invention, an operation hole capable of operating the locking rod may be provided on a side surface of the main body portion on the restricted area side (Claim 2). According to this configuration, compared to the conventional case where the unlocking mechanism is in the open state, the unlocking mechanism including the locking rod is less visible from the open area, and the operation hole provided on the side surface on the restricted area side is provided. It is difficult to operate from the open area side. In other words, it is possible to provide a swing door that has a simple structure but is more excellent in crime prevention.

  Further, in the swing door of the present invention adopting the aspect of claim 2, the swing door further includes a long handle-like operation member having one end connected to the locking rod and having a protruding portion penetrating the operation hole on the other end. A substantially central portion of the long handle-like operation member is rotatably attached to the main body portion, and the operation hole may be provided in an upper portion of the side surface of the main body portion on the restricted area side. Item 3). According to this configuration, since the locking rod can be operated through the operation member from the operation hole provided in the upper part of the swing door, it is easy even when the swing door is provided at a low position. It is possible to provide a swing door with higher operability while being excellent in the crime prevention surface with a simple configuration.

  In the swing door of the present invention, a support projection may be provided on a side surface of the main body portion on the restricted area side at a position between the operation hole and the locking rod. According to this configuration, when the operation member is moved in the direction of the support protrusion, the operation member can be more easily operated by an operation of picking the support protrusion and the operation member than when no support protrusion is provided. . In other words, it is possible to provide a swing door with higher operability while having a simple structure and an excellent crime prevention surface.

  In the swing door according to the present invention, the hinge member is a semicircular member, and the rotation stopping recess is formed in an outer peripheral portion of the semicircular hinge member and is larger than a radius of the locking rod. It may have a depth (Claim 5). According to this configuration, since the locking rod is fitted into the rotation restraining recess in the closed state of the swing door, it is stronger than the case where the locking rod is not fitted into the rotation restraining recess. In addition, the swing door can be held in a closed state, and crime prevention can be improved. In other words, it is possible to provide a swing door with a better crime prevention surface while maintaining high operability with a simple configuration.

  The swing door according to any one of claims 1 to 5, wherein the hinge member has a second rotation-restraining recess capable of locking and releasing the locking rod separately from the rotation-restraining recess at an outer peripheral portion thereof. The side portion of the second rotation stopping recess close to the rotation stopping recess is configured to facilitate the release of the locking rod from the second rotation stopping recess. It is preferable that it is formed so as to be inclined toward the surface (claim 6). According to this configuration, when the swing door is in the closed state, the locking rod is locked by the rotation stopping recess, and when the swing door is in the open state, the locking rod is locked by the second rotation stopping recess. At this time, since the side surface portion of the second rotation stop recess is inclined toward the rotation stop recess, the position of the swing door can be adjusted by a simple operation of pressing the swing door in the direction of the rotation stop recess. It can be switched easily. In other words, it is possible to provide a swing door having higher operability while having a simple structure and an excellent crime prevention surface.

  Further, in the swing door according to any one of claims 1 to 5, the swing door is further provided with an elastic member that is provided in or near the hinge member or attached to an object to be attached to the swing door, When the elastic member receives a collision by the rotating main body, it preferably pushes back the main body toward a position where the locking bar is locked by the rotation restraining recess. 7). It is more preferable that the elastic member is a rubber material, a spring material, or a damper member fixed to a bracket integrated with the hinge member.

  According to these configurations, when the swing door main body is rotated in a state in which the locking rod is detached from the rotation restraining recess, the hinge member or an elastic member provided in the vicinity thereof, or an object to be attached to the swing door The elastic member attached to the arm receives a collision of the swing door main body that rotates excessively. At that time, the elastic member that has received the collision pushes back the swing door main body toward the position where the locking rod is locked to the rotation restraining recess, based on the rebound resilience. Then, the swing door main body that has been pushed back returns to the position where the locking bar is locked to the rotation stop recess, and when that position is reached, the locking bar is moved into the rotation stop recess by the action of the biasing member. Locked. As a result, the rotation of the swing door main body is stopped and the swing door is held in the closed state. That is, according to the above configuration, even after a person passes through the swing door, it is possible to satisfy the user's desire to always keep the door closed by automatically returning the swing door to the neutral position immediately after that.

2 is a perspective view showing an appearance of a swing door 20. FIG. 2 is a perspective view showing an outline of a configuration of a swing door 20. FIG. The swing door 20 in the closed state is shown, (A) is an enlarged plan view of the hinge disk 50 and its vicinity, and (B) is an overall perspective view of the swing door. The swing door 20 at the time of rotation is shown, (A) is an enlarged plan view of the hinge disk 50 and its vicinity, (B) is the whole perspective view of a swing door. The swing door 20 in the open state is shown, (A) is an enlarged plan view of the hinge disk 50 and its vicinity, and (B) is an overall perspective view of the swing door. It is a perspective view which shows the outline of a structure of the swing door 120 of 2nd Embodiment. It is a perspective view which shows the outline of a structure of the swing door 120 of 3rd Embodiment. The principal part expansion perspective view of the swing door of 4th Embodiment. The hinge disc used in 4th Embodiment and its peripheral member are shown, (A) is a front view, (B) is a top view, (C) is a right view, (D) is a XX arrow view. .

  In describing the embodiments for carrying out the invention based on the drawings, the correspondence between the constituent elements of the embodiment and the constituent elements of the present invention will be clarified. The swing doors 20 and 120 of the embodiment correspond to the swing door of the present invention, the main body 30 corresponds to the main body, the stopper bar 31 corresponds to the locking bar, and the hinge disk 50 corresponds to the hinge member. The springs 39a and 39b correspond to biasing members, the closing recess 52 corresponds to a rotation restraining recess, the operation window 32 corresponds to an operation hole, the operation rod 40 corresponds to an operation member, and the operation protrusion 42 corresponds to a protrusion. The support protrusion 34 corresponds to the support protrusion, and the open recesses 54a and 54b correspond to the second rotation stop recess. An example of the operation method of the swing door of the present invention is also clarified by explaining the operation of the swing doors 20 and 120.

[First Embodiment]
Next, the configuration of the swing door 20 according to the first embodiment of the present invention will be described in detail with reference to FIGS. 1 and 2. Here, FIG. 1 is a perspective view showing an external appearance of the swing door 20, and FIG. 2 is a perspective view showing an outline of the configuration of the swing door 20. As shown in FIG. 1, the swing door 20 of the present invention includes a main body portion 30 and a hinge disc 50, and is pivoted by a fulcrum shaft 56 on a hinge disc 50 provided so as to sandwich the upper and lower sides of the main body portion 30. It is supported. Since the hinge disk 50 is attached to the wall surface of the cashier counter 10 provided at the boundary between the open area and the restricted area, the open area and the restricted area can be opened and closed by rotating the main body 30. Partitioning. In describing the mode for carrying out the present invention, an open area means an area open to a customer such as a convenience store where a customer can freely move, and a restricted area is It means an area where employees such as convenience stores do business and do not allow customers to enter. For example, the inside of the cashier counter, which is the cash area side of the register, corresponds to the restricted area, and the outside of the cashier counter corresponds to the open area.

  The main body 30 is a metal substantially rectangular parallelepiped member, and as shown in FIG. 1, an operation window 32 is provided on the restricted area side and above the main body 30, and in the vicinity of the operation window 32. Is provided with a support projection 34. In the operation window 32, an operation protrusion 42 described later penetrates from the inside of the main body 30 to the restricted area side, and the operation bar 40 can be operated from the operation window 32 through the operation protrusion 42.

  Next, the internal structure of the main body 30 will be described in detail with reference to FIG. As shown in FIG. 2, the main body 30 includes a stopper bar 31 that vertically penetrates the main body 30, an operating bar 40 that operates the stopper bar 31, and a substantially central position of the operating bar 40. A fixed member 36a that is pivotally fixed to the stopper rod 31, a connecting member 38 that connects the stopper rod 31 and the operating rod 40 at a substantially central position of the stopper rod 31, and an upper end portion of the stopper rod 31 in the center direction of the hinge disk 50. And a spring 39b for urging the lower end portion of the stopper bar 31 toward the center of the hinge disk 50. The lower fixing member 36b is the same member as the upper fixing member 36a, but differs in that the installation location is provided above or below the connecting member 38. That is, the connecting member 38 is supported so as to be movable in the horizontal direction between a pair of upper and lower fixing members 36 a and 36 b fixed in the main body 30. Note that the installation location of both the fixing members 36a and 36b is symmetrical with respect to the connecting member 38. Therefore, when the main body 30 is to be used upside down, the operation rod 40 is replaced with the fixing member 36b. It can be used only with a high degree of freedom for installation. The springs 39 a and 39 b are coil springs, one end of which is connected to the stopper rod 31 and the other end of which is connected to the fulcrum shaft 56. For this reason, the stopper bar 31 is always urged toward the center of the hinge disk 50 regardless of whether the swing door is in an open state or a closed state. In use, as shown in FIG. 1, the side cover 30 </ b> C of the main body 30 keeps these internal configurations invisible from the outside. For this reason, the opening / closing mechanism of the swing door 20 is not apparent at first glance, and it can be said that it is excellent in crime prevention. The operation window 32 and the supporting projections 34 in the vicinity thereof are formed on the side cover 30C.

  As shown in FIG. 2, the operation rod 40 is a long metal member having a substantially central portion that is rotatably attached to the upper fixing member 36 a by a screw 44. An operation protrusion 42 is provided on one end side (upper end side) of the operation rod 40, and the other end side (lower end side) is rotatably attached to the connecting member 38 by a screw 46.

  As shown in FIG. 2, the hinge disk 50 is a metal semicircular member having a smooth surface (a semicircular arc-shaped outer peripheral edge), and has a circumferential surface (arc-shaped outer peripheral part) 3 Two recesses (52, 54a, 54b) and a shaft hole 58 (see FIG. 3A) for holding the fulcrum shaft 56 are provided. As shown in FIG. 3A, these three recesses are arranged in the order of the opening recess 54a, the closing recess 52, and the opening recess 54b in this order from the restricted area side. The angle and the angle between the opening recess 54b and the closing recess 52 are formed at an angle of approximately 90 degrees with the shaft hole 58 as the center. These three recesses are designed to be deeper than the diameter of the stopper bar 31, and the stopper bar 31 is biased toward the center of the hinge disk 50 by the springs 39a and 39b. In the closed state, the stopper bar 31 is fitted and the position of the main body 30 is positioned. Moreover, when the main-body part 30 rotates, the stopper stick | rod 31 will move along the circumferential surface (arc-shaped outer peripheral part).

  Here, these recesses will be described in more detail. The closed recess 52 is a recess into which the stopper bar 31 is urged and fitted by the springs 39a and 39b when the swing door 20 is in the closed state, as shown in FIG. Deeply formed. For this reason, when the stopper bar 31 is once fitted in the closed recess 52, the swing door 20 is positioned in the closed state (closed position). Further, the open recess 54a and the open recess 54b (hereinafter collectively referred to as “open recess 54”) are recesses into which the stopper bar 31 is fitted when the swing door 20 is in an open state. It is the same as the closed recess 52 in that it is formed deeper than the diameter. On the other hand, the surface (side surface portion) close to the closing recess 52 of each opening recess 54 is different from the closing recess 52 in that it has an inclination toward the surface (outer peripheral edge) of the hinge disk 50. For this reason, when the stopper bar 31 is fitted in the open recess 54, the swing door 20 is positioned, but the swing bar 20 is rotated from this position toward the closed recess 52, so that the stopper bar can be easily set. 31 can be detached from the open recess 54.

  Next, operation | movement of the swing door 20 of this embodiment comprised in this way is demonstrated using FIGS. Here, FIG. 3 is an explanatory view for explaining the swing door 20 in the closed state, and FIG. 4 is an explanatory view for explaining a state in which the stopper bar 31 is detached from the closed recess 52 (when it is rotatable). FIG. 5 is an explanatory diagram for explaining the swing door 20 in the open state. Moreover, in each figure, (A) is a figure which shows the positional relationship of the hinge disc 50 and the stopper stick | rod 31, and (B) in the figure shows the inside of the main-body part 30 in each state. It is a perspective view.

  When the swing door 20 is in the closed state, as shown in FIG. 3B, the swing door 20 is positioned in the closed state, which is a position substantially perpendicular to the wall surface of the register counter 10, and Separates the restricted area. For this reason, it is possible to prevent a person (for example, a purchaser) from entering the restricted area from the open area. When a person (for example, an employee) moves from the restricted area to the open area, the swing door 20 is rotated and the position of the swing door 20 is in an open state in which the position is substantially parallel to the wall surface of the register counter 10 (see FIG. 5)).

  In order to change the swing door 20 from the closed state to the open state, it is necessary to take out the stopper bar 31 fitted in the closed recess 52 and make the swing door 20 turnable. For this purpose, the operation protrusion 42 protruding from the operation window 32 toward the restricted area is pressed in a direction approaching the support protrusion 34. Specifically, the operation protrusion 42 is pressed in the direction of the support protrusion 34 by sandwiching the operation protrusion 42 and the support protrusion 34 from both sides. As a result, the substantially central position of the operation rod 40 is attached to the main body 30 so as to be rotatable about the screw 44, so that the operation rod 40 rotates about the screw 44 as a rotation axis. The side opposite to the operation projection 42 (the other end side) moves in the opposite direction to the operation projection 42, that is, in the direction opposite to the hinge disk 50. At this time, the opposite side (the other end side) of the operation rod 40 to the operation projection 42 is fixed to the connecting member 38 by a screw 46 so as to be rotatable, so that the connecting member 38 moves in the direction opposite to the hinge disk 50. To do. Furthermore, since the connecting member 38 and the stopper bar 31 are connected, the stopper bar 31 moves in the direction opposite to the hinge disk 50. By doing so, as shown in FIG. 4 (A), the stopper bar 31 is detached from the closed recess 52, and the swing door 20 becomes rotatable.

  Next, the main body 30 is rotated to the restricted area side. Specifically, the main body 30 is slightly pulled in the direction of the arrow in FIG. 1 with the operation protrusion 42 pressed in the direction of the support protrusion 34. Thus, after the stopper bar 31 is detached from the closing recess 52 of the hinge disk 50, it is not necessary to continue pressing the operation protrusion 42 in the direction of the support protrusion 34. Since the surface (outer peripheral edge) of the hinge disk 50 has a gentle arc shape, the springs 39a and 39b attach the stopper bar 31 toward the center of the hinge disk 50 after the stopper bar 31 is removed from the closed recess 52. This is because even if it is applied, the rotation of the main body 30 is not hindered. With the rotation of the main body 30, the stopper bar 31 is moved on the smooth circumference of the hinge disk 50, and is then fitted into the open recess 54a by the urging force of the springs 39a and 39b, so that the swing door is opened ( (See FIG. 5A). Here, the case where the main body 30 is rotated toward the restricted area has been described as an example. However, the same applies to the case where the main body 30 is rotated toward the open area.

  On the other hand, when the swing door is shifted from the open state to the closed state, the main body 30 is pulled in the direction opposite to the arrow in FIG. As a result, the surface (side surface portion) of the open concave portion 54a close to the closed concave portion 52 is inclined toward the surface of the hinge disk 50, so that the stopper bar 31 is opened as the main body portion 30 rotates. Leave 54a. After the stopper bar 31 is detached from the open recess 54 a, the surface (outer peripheral edge) of the hinge disk 50 is moved without hindering the rotation of the main body 30. When the stopper bar 31 reaches the position of the closed recess 52, it is fitted into the closed recess 52 by the biasing force of the springs 39a and 39b, and the main body 30 is positioned at the closed position. Here, the case of turning from the restricted area side has been described as an example, but the case of turning from the open area side is the same except that the open concave portion 54a is changed to the open concave portion 54b, and thus the description thereof is omitted.

  According to the swing door 20 of the present embodiment described in detail above, when shifting from the closed state to the open state, the main body 30 is simply rotated after the operation protrusion 42 is pressed in the direction of the support protrusion 34. It is possible to shift to the open state with a simple operation, and when shifting from the open state of the swing door to the closed state, it is possible to shift to the closed state with a simple operation of rotating the main body 30 in a desired direction. it can. Moreover, since the operation protrusion 42 is operated from the restricted area side, it can have excellent crime prevention. Therefore, it is possible to provide the swing door 20 having a simple structure and an excellent crime prevention surface.

  Further, since the operation window 32 is provided on the restricted area side, the stopper bar 31 that is a part of the unlocking mechanism of the swing door 20 cannot be seen from the open area side. Therefore, it is possible to provide the swing door 20 having a simpler structure and a better crime prevention surface.

  Further, the central portion of the operating rod 40 is fixed to the upper fixing member 36a, and the stopper rod 31 and one end side (lower end side) of the operating rod 40 are connected via the connecting member 38. The stopper bar 31 can be operated by operating the operation protrusion 42 provided on the end side (upper end side) through the operation window 32. Therefore, even when the swing door 20 is installed at a low position, the stopper bar 31 can be easily operated. In other words, it is possible to provide the swing door 20 that has a simple configuration and an excellent crime prevention surface, and that has high operability.

  Furthermore, a support protrusion 34 is provided on the side of the operation protrusion 42. When the operation protrusion 42 is pressed, the operation protrusion 42 and the support protrusion 34 can be pressed by an operation of pressing, so that the operation protrusion 42 can be easily pressed. Can do. In other words, it is possible to provide the swing door 20 that has a simple configuration and an excellent crime prevention surface, and that has high operability.

  The hinge disk 50 is semicircular and has a closed recess 52 and an open recess 54 deeper than the radius of the stopper bar 31 on its surface (outer peripheral part). It can be fitted into the open recess 54. In other words, as compared with the case where the stopper bar 31 does not enter the closed recess 52 or the open recess 54, the stopper bar 31 can be positioned more reliably in the open state and the closed state. By doing so, it is possible to provide a swing door 20 that has a simple structure and an excellent crime prevention surface and is highly reliable.

  Further, since the wall surface of the open concave portion 54 on the closed concave portion 52 side is inclined toward the surface (outer peripheral edge) of the hinge disk 50, the main body portion 30 can be simply rotated in the closed position direction. The wing door 20 can be closed by operation. In other words, it is possible to provide the swing door 20 that has a simple configuration and an excellent crime prevention surface, and that has high operability.

  It should be noted that the present invention is not limited to the above-described embodiment, and it goes without saying that the present invention can be implemented in various modes as long as it belongs to the technical scope of the present invention.

  For example, in the above-described embodiment, the wall surface on the closed recess 52 side of the open recess 54 is inclined toward the surface (outer peripheral edge) of the hinge disk 50, but has an inclination. It is not necessary. Even in this case, the same effect as the above-described embodiment can be obtained by operating the operation rod 40 when changing from the closed state to the open state.

[Second and Third Embodiments]
In the first embodiment described above, when the swing door 20 is rotated, the stopper bar 31 is moved via the operation bar 40. However, as shown in FIG. The substantially central portion of the bar 31 may be exposed and the stopper bar 31 may be directly operated (second embodiment). In this way, the same effects as those of the first embodiment described above can be obtained, but the operation rod 40 and the like are not required, so that the number of parts can be reduced, which can contribute to the environment. Further, as shown in FIG. 7, the swing door 120 may have a gripping hole 122 inside (near) the exposed portion of the stopper bar 31 (third embodiment). In this way, the stopper bar 31 can be operated by an operation of gripping the gripping hole 122 and the stopper bar 31, so that the same effect as in the first embodiment described above can be obtained as compared with the case where the gripping hole 122 is not provided. Can be operated more easily. 6 and 7 are perspective views showing an outline of the configuration of the swing door 120 according to the second and third embodiments.

[Fourth Embodiment]
In the first to third embodiments, the opening recesses 54a and 54b as the second rotation stopping recesses are provided on the outer peripheral portion of the hinge disk 50. However, as in the fourth embodiment shown in FIGS. Instead of providing an open recess (second rotation stop recess) in the hinge disk 50, at least one elastic member 85 may be additionally installed.

  Specifically, as shown in FIGS. 9A to 9D, the hinge disks 50 respectively disposed above and below the main body 30 of the swing door are composed of a back plate 81 and a semi-disc-shaped hidden plate. The part 82 is integrated with a bracket 80 that is connected in an L shape in a side view. The bracket 80 is an attachment interposition part for fixing the hinge disk 50 to the side wall surface of the attachment object such as the cashier counter 10. A fixing screw (not shown) is inserted into the back plate portion 81 of the bracket. For this purpose, a plurality of screw holes 83 (four holes in this example) are formed. The hinge disc 50 is fixed, for example, by welding so as to be substantially perpendicular to the back plate portion 81 of the bracket. As a result, the hinge disc 50 is substantially parallel to the hidden plate portion 82 of the bracket. ing. The hidden plate portion 82 of the bracket is positioned, for example, as a top plate located above the hinge disc 50 disposed on the upper side of the swing door, and the hinge disc 50 and the stopper rod 31 adjacent thereto are arranged. The upper end is covered and concealed from the outside, and clothes and the like are prevented from being caught on the upper end of the stopper bar 31.

  A pair of left and right elastic members 85 are attached to the back plate portion 81 of the bracket. The elastic member 85 is a urethane rubber material formed in a cylindrical shape, for example. These elastic members 85 are provided in the vicinity of the left and right end portions of the back plate portion 81 of the bracket so as to be able to face the swing door main body portion 30 that approaches when rotating. These elastic members 85 may be fixed to the back plate portion 81 of the bracket with an adhesive, but use a fixing screw (not shown) used when fixing the bracket 80 to the side wall surface of the attachment target. The back plate portion 81 may be fixed. In that case, if a hollow hole is formed in the center of each cylindrical elastic member 85 and the elastic member 85 is positioned so that the hollow hole is aligned with the screw hole 83 (FIG. 9A). The elastic member 85 and the bracket 80 can be simultaneously fixed by a single fixing screw using the hollow hole as a through hole for the fixing screw.

  Similar to the first to third embodiments, the hinge disk 50 of the fourth embodiment has a closing recess 52 as a rotation restraining recess at the center position of the semicircular outer peripheral region, and the closing recess 52 is a stopper. It is formed deeper than the diameter of the rod 31. When the stopper bar 31 is locked in the closed recess 52, the main body 30 of the swing door is held in the neutral position (the position in FIG. 8 and the position in FIG. 9D), and the swing door is closed. It becomes a state.

  It is assumed that a person operates the operation protrusion 42 to release the stopper bar 31 from the closed recess 52 and then pushes the swing door main body 30 in any direction from the neutral position. In general, the swing door main body 30 is lightweight, so that it can be easily rotated by a light push by a person and easily reaches a position of about 90 degrees from the neutral position. At that time, when the swinging door main body 30 that has surplus momentarily collides with one of the pair of left and right elastic members 85, the impacted elastic member 85 brings the swing door main body 30 to the neutral position based on the resilience. Push it back. Then, the swing door main body 30 returns and rotates toward the neutral position. When the swing door main body 30 reaches the neutral position, the stopper bar 31 is engaged (locked) into the closed recess 52 by the action of the springs 39a and 39b. As a result, the rotation of the swing door main body 30 is stopped and the swing door is held in the closed state. As described above, according to the fourth embodiment, even when a person passes the swing door, immediately after that, the swing door is automatically returned to the neutral position to satisfy the user's desire to always keep the door closed. Can do.

  In the fourth embodiment, a rubber material is used as the elastic member 85. However, instead of this, a spring material (for example, a koine spring or a leaf spring) or a damper member (for example, one using spring pressure or gas pressure) is used. You may do it. The elastic member 85 may be provided not on the bracket 80 integrated with the hinge disk 50 but in the vicinity thereof, or directly attached to an object to be attached to the swing door (for example, a side wall of a cashier counter). May be. Furthermore, in the said 4th Embodiment, although the two elastic members 85 were used so that it might become a pair of right and left on both sides of the swing door main-body part 30 of a neutral position, it is good also considering only one elastic member.

  The swing door of the present invention can be used when partitioning a passage such as a cashier counter that frequently enters and exits, and is simple and particularly effective in the industrial field where it is required to achieve crime prevention by the structure of the door itself. Is available.

  DESCRIPTION OF SYMBOLS 10 Cash register counter (object to which swing door is attached), 20 swing door, 30 main body, 31 stopper bar (locking bar), 32 operation window (operation hole), 34 support projection, 36 fixing member, 38 connecting member, 39 , 39a, 39b Spring (biasing member), 40 operation rod (operation member), 42 operation projection (projection), 44 screws, 46 screws, 50 hinge disk (hinge member), 52 closing recess (rotation restraint recess) , 54, 54a, 54b Open recess (second rotation stop recess), 56, support shaft, 80 bracket integrated with hinge disc, 85 elastic member, 120 swing door, 122 gripping hole.

Claims (8)

A swing door provided between the open area and the restricted area and configured to partition the open area and the restricted area so as to be openable and closable;
A rotatable main body,
A locking rod that penetrates the body part up and down and is operated from the restricted area side,
A hinge member provided at each of an upper part and a lower part of the main body part, and having a rotation-restraining concave part on an outer peripheral part;
A biasing member that biases the locking rod toward the hinge member,
The locking bar is locked in the rotation restraining recess when the swing door is closed. When the main body portion rotates, the locking bar separates from the rotation restraining recess and follows the outer peripheral portion of the hinge member. Swing door characterized by moving.   2. The swing door according to claim 1, wherein an operation hole capable of operating the locking rod is provided on a side surface of the main body on the restricted area side. One end side is connected to the locking rod, and the other end side further includes a long handle-like operation member having a projection that penetrates the operation hole,
The substantially central part of the long handle-like operating member is attached to the main body part so as to be rotatable,
The swing door according to claim 2, wherein the operation hole is provided in an upper portion of the side surface of the main body on the restricted area side.   4. The swing door according to claim 2, wherein a support protrusion is provided on a side surface of the main body on the restricted area side at a position between the operation hole and the locking rod. . The hinge member is a semicircular member,
5. The rotation stop recess is formed in an outer peripheral portion of the semicircular hinge member and has a depth larger than a radius of the locking rod. Swing door according to item. The hinge member further has a second rotation stop recess capable of locking and detaching the locking rod separately from the rotation stop recess on the outer periphery thereof,
In order to facilitate the release of the locking rod from the second rotation stop recess, a side surface portion of the second rotation stop recess close to the rotation stop recess is inclined toward the rotation stop recess. The swing door according to any one of claims 1 to 5, wherein the swing door is provided. The hinge member is provided at or near the hinge member, or further provided with an elastic member to be attached to the swing door attachment object,
The elastic member functions to push back the main body portion toward a position where the locking rod is locked to the rotation restraining recess when the elastic member receives a collision by the rotating main body portion. The swing door as described in any one of Claims 1-5.   The swing door according to claim 7, wherein the elastic member is a rubber material, a spring material, or a damper member fixed to a bracket integrated with the hinge member.

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