door

Abstract

We provide technology that can reduce blind spots while ensuring security. [Solution] A door comprising a door body 10, a fixed panel 20 fixed to the door body 10 and through which light can pass, and a movable panel 30 provided to slide vertically relative to the door body, which closes the fixed panel 20 in the closed state and releases the closing of the fixed panel 20 in the open state.

Description

Technical Field

[0001] The present invention relates to a door constructed at the entrance of a building such as a detached house or an apartment house.

Background Art

[0002] Conventionally, as this type of technology, a door scope, also called a security lens, is known. A door scope is an optical device provided through the door at a height around the eye level of a person at the door. Generally, it has a circular lens, and in the state where the door is locked, the situation of a visitor in front of the door can be visually recognized from the inside of the room through the lens. Since a door scope can be incorporated at a lower cost compared to an intercom system with a camera that performs a similar function, it is widely adopted particularly in apartment houses.

[0003] In related technology, there is a door scope fitted into an opening formed through a part of a door leaf. It consists of a main body and a lid body formed of a light-transmitting material and each having a rib portion at one end. A groove is provided over the entire circumference near the tip of a shaft portion extending from the rib portion of the main body in the tip direction, and an O-ring made of an elastic body is fitted into the groove. When the shaft portion is inserted into a cylindrical portion continuously formed with the rib portion of the lid body, it is known that the O-ring closely adheres and fixes to the inner wall of the cylindrical portion (see Patent Document 1 below).

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] Technologies such as peepholes and intercom systems with cameras, which allow you to see visitors standing in front of the door, are becoming increasingly important with today's heightened awareness of security. However, although these technologies are designed with lenses and other components to provide a relatively wide field of view, significant blind spots still remain. Therefore, there is a need for technologies that can reduce blind spots while maintaining security performance.

[0006] This invention was made to solve the above-mentioned problems and aims to provide a technology that can reduce blind spots while ensuring security. [Means for solving the problem]

[0007] To solve the above-mentioned problems, one aspect of the present invention comprises a door body, a fixed panel fixed to the door body and through which light can pass, and a movable panel provided to slide vertically relative to the door body, which closes the fixed panel in the closed state and releases the closing of the fixed panel in the open state. [Effects of the Invention]

[0008] According to the present invention, it is possible to provide a technology that can reduce blind spots while ensuring security. [Brief explanation of the drawing]

[0009] [Figure 1] This is a schematic front view illustrating a closed door according to the first embodiment. [Figure 2] This is a cross-sectional view along line AA in Figure 1. [Figure 3] This is a schematic front view illustrating the door in the open state according to the first embodiment. [Figure 4] Figure 3 is a cross-sectional view along line BB. [Figure 5] This is a block diagram showing the control system for a movable panel according to the first embodiment. [Figure 6] This is a schematic front view showing the door in the open position according to a modified example. [Figure 7]This is a schematic rear view showing the door in a closed state according to the second embodiment. [Figure 8] Figure 7 is a cross-sectional view along line CC. [Figure 9] This is a schematic rear view illustrating the door in the open state according to the second embodiment. [Figure 10] Figure 9 is a cross-sectional view along the DD line. [Figure 11] This is a schematic front view illustrating a closed door according to the third embodiment. [Figure 12] Figure 11 is a cross-sectional view along the EE line. [Figure 13] This is a schematic front view illustrating the door in the open state according to the third embodiment. [Figure 14] Figure 13 is a cross-sectional view along the FF line. [Figure 15] This diagram illustrates the connection between the movable panel and the guide rail according to the third embodiment. [Modes for carrying out the invention]

[0010] Embodiments of the present invention will be described below with reference to the drawings. In this specification and the drawings, components having substantially the same functional configuration are denoted by the same reference numerals, and redundant explanations will be omitted.

[0011] <First Embodiment> Figure 1 is a schematic front view of the door in the closed state according to this embodiment, and Figure 2 is a cross-sectional view thereof along line AA. Figure 3 is a schematic front view of the door in the open state according to this embodiment, and Figure 4 is a cross-sectional view thereof along line BB. In these figures, the front side of the door 1 indicates the exterior side, and the rear side indicates the interior side. The direction passing through the front and rear sides will be referred to as the front-to-back direction in the following explanation.

[0012] As shown in FIGS. 1 and 2, the door 1 according to the present embodiment is a so-called entrance door that is attached to a door frame body (not shown) attached to the entrance wall surface of a building, for example, via hinges (not shown) so as to be openable and closable. The door 1 includes a door main body 10, a fixed panel 20, and a movable panel 30.

[0013] The door main body 10 is formed in a substantially rectangular shape in a front view so as to have an opening 12, and lateral edge portions 14 having a long, rectangular column shape in the vertical direction are provided at both end portions in the left-right direction thereof. An upper edge portion 16 having a long, rectangular column shape in a substantially horizontal direction (left-right direction) is integrally connected to the inner side wall surface at the upper end portion of each of the two lateral edge portions 14, and a panel-shaped lower panel 18 is integrally connected to the inner side wall surface of the two lateral edge portions 14 from approximately the center to the lower end thereof. The opening 12 is formed so as to be surrounded by these lateral edge portions 14, upper edge portion 16, and lower panel 18. On one of the two lateral edge portions 14 (the left side in FIG. 1), a door knob 142 is provided on the front side, and a door knob 144 is provided on the back side.

[0014] The fixed panel 20 is a plate-shaped member formed in a substantially square shape in a front view, and is fixed to the door main body 10 by connecting each edge portion to the lateral edge portion 14, upper edge portion 16, and lower panel 18 so as to close the opening 12 of the door main body 10. In the present embodiment, the fixed panel 20 is made of punched metal, and thus a plurality of holes 22 are uniformly formed therethrough so that light can pass through, that is, it is possible to visually recognize the outside from the indoor side through the door 1 with an extremely wide viewing angle.

[0015] The fixed panel 20 is preferably sized such that its vertical and horizontal lengths allow visitors standing in front of the door 1 to be seen without any blind spots. For example, the vertical length of the fixed panel 20 is preferably at least one-third of the vertical length of the door 1 from the viewpoint of ensuring visitor visibility, and is particularly preferably approximately half the length of the door 1. Also, for example, the horizontal length of the fixed panel 20 is preferably at least two-thirds of the horizontal length of the door 1 from the viewpoint of ensuring visitor visibility, and is particularly preferably approximately the entire length of the door 1.

[0016] The movable panel 30 is a plate-like member formed in a roughly rectangular shape when viewed from the front and capable of blocking light, and is positioned on the front side (outside the room) of the fixed panel 20 in the front-rear direction. The left and right ends of the movable panel 30 are slidably fitted into opposing lateral edges 14, preferably with a slight gap between them. Specifically, grooves (not shown) are formed on the opposing inner side walls of the two lateral edges 14, and the left and right ends of the movable panel 30 are slidably fitted into these grooves. These grooves extend to near the lower end of the lateral edge 14, and therefore the movable panel 30 is configured to slide vertically, i.e., to move up and down.

[0017] The movable panel 30 is slightly larger than the fixed panel 20, that is, it is larger in the vertical, horizontal, and vertical directions, and in the closed state shown in Figures 1 and 2, it can block the fixed panel 20 together with the opening 12 so that it is not visible from the front. In the closed state, the upper end of the movable panel 30 is in contact with the upper edge 16. It is preferable that the upper end of the movable panel 30 is provided with a cushioning material such as rubber to prevent damage to the upper edge 16 due to this contact.

[0018] As shown in Figures 3 and 4, the movable panel 30 can move downward from a closed state located at the top, thereby transitioning to an open state in which the fixed panel 20 is exposed when viewed from the front. A housing section 182 is formed inside the lower panel 18 to house the movable panel 30 so that it is not visible when viewed from the front, and the movable panel 30 is housed in the housing section 182 when it is in the open state.

[0019] In this embodiment, the movable panel 30 is electrically powered to move up and down. Figure 5 is a block diagram showing the control system of the movable panel according to this embodiment. As shown in Figure 5, the door 1 has a lifting device 40 composed of arbitrary actuators for moving the movable panel 30 up and down, a control device 50 having a CPU, memory, etc. to control it, and an operation panel 60 for the resident to operate the lifting and lowering of the movable panel 30 from inside the room. As shown in Figures 1 and 3, the operation panel 60 is provided on the back of the other side (right side in the figure) of the two lateral edges 14, that is, on the interior wall surface, and has an up button and a down button. When the up button is pressed, the control device 50 controls the lifting device 40 to raise the movable panel 30, and when the down button is pressed, the control device 50 controls the lifting device 40 to lower the movable panel 30. Note that the lifting device 40 and the control device 50 may be provided on the door body 10. On the other hand, the operation panel 60 may be implemented as a remote controller or a smartphone application instead of on the door body 10. In this case, the control device 50 needs to be configured to receive upward and downward signals sent by residents operating a remote controller or smartphone.

[0020] According to the embodiment described above, the resident can reliably see the visitor standing in front of the door 1 through the fixed panel 20 having multiple holes 22. Furthermore, since such a fixed panel 20 can be switched from an open state to a closed state by the movable panel 30, picking and turning (unlocking) of the thumbturn through the holes 22 can be prevented, thus providing a high level of security. Therefore, according to this embodiment, blind spots can be reduced while ensuring security.

[0021] In this embodiment, the fixed panel 20 is described as perforated metal, but it is not limited to this, and any plate material can be used as long as it has holes 22. For example, as shown in Figure 6, a fixed panel 20A may be used instead of the fixed panel 20, which does not have holes 22 and is made of a transparent or translucent material that is entirely or mostly light-transmitting. In this case, in addition to ensuring the identification of visitors, the absence of holes 22 provides even higher security. Examples of materials that make up the fixed panel 20A include plastic materials such as polycarbonate, glass, preferably tempered glass, etc.

[0022] Furthermore, considering the possibility that the movable panel 30 may be pushed downward from the outside, it may be positioned on the rear side of the fixed panel 20, that is, on the interior side.

[0023] Alternatively, a fixed panel 20 may be provided below the door body 10, such that the door is closed when the movable panel 30 is slid downward and open when it is slid upward.

[0024] <Second Embodiment> In the first embodiment, the movable panel 30 was described as being moved up and down electrically, but it is not limited to this, and it may also be moved up and down manually.

[0025] Figure 7 is a schematic rear view showing the door in the closed state according to this embodiment, and Figure 8 is a cross-sectional view thereof along line CC. Figure 9 is a schematic rear view showing the door in the open state according to this embodiment, and Figure 10 is a cross-sectional view thereof along line DD.

[0026] As shown in Figures 7 to 10, the door 1B according to this embodiment differs in configuration from the door 1 according to the first embodiment in that it comprises a door body 10B, a fixed panel 20B, and a movable panel 30B instead of the door body 10, fixed panel 20, and movable panel 30. The door body 10B differs in configuration from the door body 10 according to the first embodiment in that the operation panel 60 is removed from one side edge 14, a fastener 146 is newly provided approximately in the vertical center of the side edge 14, and a slit 184 extending vertically is formed on one side of the lower panel 18 (left side in Figure 7). Although not shown, the door body 10B does not have a lifting device 40 and a control device 50.

[0027] The fastener 146 is formed in a roughly C-shape when viewed from the side, and the slide bar 32 of the movable panel 30B, which will be described later, can be fitted into its hollow portion. The slit 184 is a hole with a width through which the support member 34 of the movable panel 30B, which will be described later, can be inserted, and communicates with the housing portion 182. The slit 184 also extends to the upper end of the lower panel 18. However, the lower end of the slit 184 does not reach the lower end of the lower panel 18.

[0028] The fixed panel 20B differs from the fixed panel 20 according to the first embodiment in that a slit 24 is formed at the lower end of one side in the left-right direction (left side in Figure 7). The slit 24 is a hole with a width through which the support member 34 of the movable panel 30B, which will be described later, can be inserted, and it extends to the lower end and is arranged to communicate with the slit 184 of the lower panel 18.

[0029] The movable panel 30B differs in configuration from the movable panel 30 according to the first embodiment in that a slide bar 32 is newly provided at the lower end of one side in the left-right direction (left side in Figure 7). The slide bar 32 is attached to the movable panel 30 via a support member 34 and is mounted so as to be slidable in the left-right direction relative to the support member 34. In this embodiment, the support member 34 is fixed in an upright position on the rear side wall surface near the lower end of one side in the left-right direction (left side in the figure) of the movable panel 30, and is formed so as to be insertable into the slit 184 of the lower panel 18 and the slit 24 of the fixed panel 20B, respectively.

[0030] With such a door 1B, in the closed state shown in Figures 7 and 8, the door body 10B can support the movable panel 30B in a way that prevents relative vertical movement, by inserting the slide bar 32 of the movable panel 30B into the fastener 146, via the support member 34, slide bar 32, and fastener 146. In other words, the fastener 146 and slide bar 32 function as locking parts for locking the movable panel 30B to the door body 10B. Therefore, the closed state is maintained. On the other hand, as shown in Figures 9 and 10, the support of the movable panel 30B by the door body 10B can be released by sliding the slide bar 32 to the other side in the left-right direction (right side in the figures) and disengaging it from the fastener 146. After that, the slide bar 32, support member 34, and movable panel 30B can be moved downward so that the support member 34 is moved downward along the slits 26, 184, thereby opening the door.

[0031] As described above, with respect to this embodiment, there is no need to electrically move the movable panel 30B up and down, as it can be moved up and down manually, thus reducing costs. Furthermore, gripping the slide bar 32 makes it possible to easily slide the movable panel 30B in the vertical direction. The fastener 146 may also be provided on the fixed panel 20B. Needless to say, any known means may be used to lock the movable panel 30B to the door body 10B and / or the fixed panel 20B. Also, if the movable panel 30B is on the rear side, i.e., the interior side, the slit 24 does not need to be provided on the fixed panel 20B.

[0032] <Third Embodiment> In the first embodiment, it was described that one movable panel 30 is slid forward, but the invention is not limited to this, and two movable panels 30 may be slid forward.

[0033] Figure 11 is a schematic front view showing the door in the closed state according to this embodiment, and Figure 12 is a cross-sectional view thereof along line EE. Figure 13 is a schematic front view showing the door in the open state according to this embodiment, and Figure 14 is a cross-sectional view thereof along line FF.

[0034] As shown in Figures 11 to 14, the door 1C according to this embodiment differs in configuration from the door 1 according to the first embodiment in that it comprises a door body 10C, a fixed panel 20C, and two movable panels 30C-1 and 30C-2 instead of the door body 10, fixed panel 20, and movable panel 30. The door body 10C differs in configuration from the door body 10 according to the first embodiment in that it has a lower edge portion 18C with a narrower vertical width instead of the lower panel 18, and a partial housing portion 186 is formed in the lower edge portion 18C that can accommodate the lower end of the movable panel 30C-2, and a partial housing portion 162 is formed in the upper edge portion 16 that can accommodate the upper end of the movable panel 30C-1. Furthermore, because the door body 10C is provided with two movable panels 30C-1 and 30C-2, which will be described later, its front-to-back width is wider compared to the door 1 according to the first embodiment. Furthermore, on the other side edge 14 of the door body 10C, instead of the operation panel 60, an opening / closing panel 60C is provided, which has an "open button" and a "close button".

[0035] The fixed panel 20C differs in configuration from the fixed panel 20 according to the first embodiment in that its size in the vertical direction is increased from the upper edge portion 16 to the lower edge portion 18C.

[0036] The movable panels 30C-1 and 30C-2 are formed to be the same size as each other. In the closed state, they cooperate to completely block the fixed panel 20C from being visible from the front, and in the open state, they slide so that a portion of each overlaps in the front-to-back direction, thereby exposing a portion of the fixed panel 20C from the front. This is one of the differences between the movable panels 30 of the first embodiment and the movable panels 30C-2 of the first embodiment.

[0037] Specifically, as shown in Figures 11 and 12, the movable panel 30C-1 is positioned on the front side of the fixed panel 20C, and in the closed state, it blocks the upper part of the fixed panel 20C (including a portion near the upper end of the fixed panel), that is, the upper half of the fixed panel 20C in the vertical direction, making it invisible from the front. On the other hand, the movable panel 30C-2 is positioned on the front and below side of the movable panel 30C-1, and in the closed state, it blocks the lower part of the fixed panel 20C (including other parts near the lower end of the fixed panel), specifically the lower half of the fixed panel 20C in the vertical direction, making it invisible from the front. In this embodiment, the lower end of the movable panel 30C-1 and the upper end of the movable panel 30C-2 are positioned flush with each other, but they may be configured to slightly overlap.

[0038] As shown in Figures 13 and 14, when the "open button" on the operation panel 60C is pressed, the two movable panels 30C-1 and 30C-2 move closer to each other from the closed state. That is, movable panel 30C-1 descends and movable panel 30C-2 rises, so that the vicinity of the lower end of movable panel 30C-1 overlaps with the vicinity of the upper end of movable panel 30C-2 when viewed from the front. As movable panel 30C-1 descends, the vicinity of the upper end of fixed panel 20C becomes visible when viewed from the front, and as movable panel 30C-2 rises, the vicinity of the lower end of fixed panel 20C becomes visible when viewed from the front, resulting in an open state. When the "close button" on the operation panel 60C is pressed, it returns to the closed state.

[0039] In this embodiment, a cylindrical guide rail 148-1 extending vertically to guide the sliding movement of the movable panel 30C-1 and a cylindrical guide rail 148-2 extending vertically to guide the sliding movement of the movable panel 30C-2 are incorporated into one of the side edges 14. Hereafter, when the movable panel 30C-1 and the movable panel 30C-2 are not distinguished, they will be referred to as the movable panel 30C, and when the guide rails 148-1 and the guide rails 148-2 are not distinguished, they will be referred to as the guide rail 148. As shown in Figure 15, a hollow cylindrical portion 36 is uniformly provided at one end of the movable panel 30C (the left end in Figures 11 and 13), through which the guide rail 148 is inserted. Therefore, each movable panel 30C can accurately slide along a linear travel path determined by the guide rail 148 via the cylindrical portion 36.

[0040] The movable panel 30C is movable up and down by a lifting device 40. The lifting device 40 may be provided separately for the movable panels 30C-1 and 30C-2, that is, each may be moved individually by two lifting devices 40, or the movable panels 30C may be moved up and down simultaneously by one lifting device 40. In the latter case, it is preferable to incorporate a known link mechanism that incorporates gears and chains to move one in conjunction with the movement of the other, for example, in a vertically movable blackboard. In this case, when the "open button" on the operation panel 60C is pressed in the closed state, the lifting device 40 lowers the upper movable panel 30C-1, and the lower movable panel 30C-2 rises in conjunction with this lowering via the link mechanism. The guide rail 148 may also be constructed to slide the movable panel 30C via a linear guide that also serves as a lifting device 40, i.e., via a cylindrical portion 36.

[0041] Although the door 1C according to this embodiment is described as having an electrically operated movable panel 30C for raising and lowering, it is not limited to this, and features of the door 1B according to the second embodiment may be appropriately incorporated to allow for manual raising and lowering. In this case, the movable panels 30C-1 and 30C-2 may be individually slid manually, but by employing the known link mechanism described above, the other can be slid by manually sliding only one, making opening and closing operations extremely simple. In a modified version of the door 1C that uses a link mechanism for manually sliding the movable panel 30C, it is preferable to configure it so that the resident grasps and operates the upper movable panel 30C-1, compared to the case where the resident grasps and operates the lower movable panel 30C-2, because it can be operated while standing without bending down.

[0042] As described above, according to this embodiment, even if a visitor is a suspicious person in a crouching position and cannot be seen from the upper exposed portion of the fixed panel 20C, the visitor can still be seen from the lower exposed portion of the fixed panel 20C, thus achieving an even higher level of security. In the open state, it is preferable that the overlap of the two movable panels 30C is at least 30 cm. This is because if the overlap is less than 30 cm, the vertical length of the two exposed portions of the fixed panel 20C will be less than 15 cm each, and in that case, depending on the visitor's height, it may be difficult to see the face of a non-suspicious visitor from the upper exposed portion of the fixed panel 20C. In other words, if the visitor's face cannot be seen from the upper exposed portion of the fixed panel 20C, and only the visitor's feet can be seen from the lower exposed portion, there is a possibility of mistakenly identifying the visitor as a suspicious person because they are crouching.

[0043] It goes without saying that the various features of the doors 1,1A to 1C according to the embodiments 1 to 3 described above may be combined as appropriate. Also, the movable panels 30C are not limited to two, but may be three or more.

[0044] Alternatively, the fixed panel 20C may be divided vertically, with a non-light-transmitting panel placed between them, and movable panels 30C-1 and 30C-2, whose vertical dimensions are reduced to match the divided fixed panel 20C, may be assembled to a single guide rail 148. In this case, in the closed state, the movable panels 30C-1 and 30C-2 are separated vertically from each other, with movable panel 30C-1 closing the upper divided fixed panel 20C and movable panel 30C-2 closing the lower divided fixed panel 20C. On the other hand, in the open state, movable panels 30C-1 and 30C-2 move closer to each other and are positioned on the front of the new panel, thereby exposing the two divided fixed panels 20C.

[0045] The present invention can be implemented in various other forms without departing from its essence or main features. Therefore, the embodiments described above are merely illustrative in all respects and should not be construed restrictively. The scope of the invention is defined by the claims and is not restricted by the text of the specification. Furthermore, all variations, improvements, substitutions, and modifications falling within the equivalent scope of the claims are all within the scope of the invention. [Explanation of Symbols]

[0046] Doors 1, 1A, 1B, 1C 10, 10B, 10C Door Body 146 Fastener (locking part) 148-1, 148-2 Guide Rails 182 Storage Unit 20, 20A, 20B, 20C Fixed Panel 22 Hole 30, 30B, 30C-1, 30C-2 Movable Panels 32. Slide bar (locking part) 40 Lifting device 60. Control Panel (Operating Unit)

Claims

1. The door itself, A fixed panel that is attached to the door body and through which light can pass, A movable panel is provided so as to be slidable vertically relative to the door body, which closes the fixed panel in the closed state and releases the closing of the fixed panel in the open state. A door equipped with a door.

2. The door body has a fixed panel fixed to the upper side in the vertical direction and a housing section that accommodates the movable panel on the lower side in the vertical direction. The door according to claim 1.

3. The movable panel is provided on the exterior side of the door. The door according to claim 1.

4. A lifting device for sliding the aforementioned movable panel, An operating unit for driving the lifting device and The door according to claim 1, further comprising:

5. A locking mechanism that secures the movable panel, which has been moved upward, to the door body and / or the fixed panel. The door according to claim 1, further comprising:

6. The fixed panel has a plurality of holes through which light can pass. The door according to claim 1.

7. The fixed panel has light transmittance. The door according to claim 1.

8. The vertical length of the fixed panel is at least one-third of the vertical length of the door. The door according to claim 1.

9. The length of the fixed panel in the left-right direction is at least two-thirds of the length of the door in the left-right direction. The door according to claim 1.

10. Multiple of the aforementioned movable panels are provided. The door according to claim 1.

11. There are two of the aforementioned movable panels. One of the two movable panels, in the closed state, closes a portion of the fixed panel, including the vicinity of the upper end, and in the open state, exposes the vicinity of the upper end of the fixed panel. The other of the two movable panels closes off the area near the lower end of the fixed panel when closed, and exposes the area near the lower end of the fixed panel when open. The door according to claim 10.

12. There are two of the aforementioned movable panels. Of the two movable panels, the other movable panel slides in conjunction with the sliding movement of one of the movable panels. The door according to claim 10.

13. Guide rails extending in the vertical direction guide the sliding movement of the aforementioned movable panel. The door according to claim 1, further comprising:

Images