JP2015117523A - Door unit and door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door unit that detects opening/closing of a door so that the occurrence of the opening/closing can be checked from the outside of the door, and the door.SOLUTION: A unit (1), which is provided in a door (10) openably/closably fixed to an opening (11), includes a rotor (3), a contact part that is brought into contact or noncontact with the opening (11), and a drive part that rotatively drives the rotor (3) in association with the contact or noncontact of the contact part with the opening (11). Rotation of the rotor (3) can be visually recognized from the outside of the door (10).

Description

  The present invention relates to a door unit and a door.

  Conventionally, a technique for monitoring the safety of a monitored person at home is known. Here, the person to be monitored for safety monitoring is, for example, an elderly person living alone.

  In the safety monitoring of elderly people living alone, while the visit by a resident in the neighborhood (hereinafter also referred to as “monitorer”) is certain, the privacy of the monitored person may be infringed, and monitoring is also performed for the monitor. Work is complicated.

  Here, for example, as one of means for monitoring the safety of an elderly person living alone, means for detecting opening / closing of a front door is known. In other words, it can be estimated that the entrance door is opened or closed by the elderly person or a third party. Therefore, if the elderly person himself opens and closes, the supervisor can consider that the elderly person is energetic enough to go out. In addition, if the door is opened and closed by a third party, the supervisor can consider that the third party has confirmed the safety of the elderly through a visit. That is, the supervisor can consider that the elderly person has not changed by detecting the opening / closing of the entrance door.

  Here, the information which detected the opening / closing of the entrance door is used, for example, for safety confirmation when a resident in the vicinity comes in front of the entrance of the elderly's house.

  Therefore, there is a need for a device that can detect the opening / closing of the entrance door and confirm that the entrance has been opened / closed from the outside of the entrance.

  So far, there has been proposed a confirmation device that is attached to the entrance door and displays the elapsed time since the entrance door was last opened and closed (see, for example, Patent Document 1).

  However, this proposed confirmation device has a problem in crime prevention because it is possible for an unspecified number of others who have been visually recognized to easily know whether or not an elderly person living alone is going out.

  In addition, an open / close monitoring device that stores open / close information of an entrance door and displays the information on a display has been proposed (for example, see Patent Document 2).

  However, since the proposed open / close monitoring device is an electric type, troubles such as preparation and maintenance of a power source are complicated.

Utility Model Registration No. 3166756 Specification JP 2001-279999 A

  An object of this invention is to provide the door unit which can detect the opening / closing of a door and can visually recognize the presence or absence of opening / closing from the outside of a door.

  A door unit according to the present invention is a unit provided in a door that is fixed to an opening so as to be openable and closable, and includes a rotating body, a contact portion that contacts or does not contact the opening, and an opening of the contact portion. And a drive unit that rotationally drives the rotating body in accordance with the contact or non-contacting, and the rotation of the rotating body is visible from the outside of the door.

  According to the present invention, opening / closing of a door can be detected, and the presence / absence of opening / closing can be visually recognized from the outside of the door.

It is a front view which shows embodiment of the door unit concerning this invention. It is an example of the pattern drawn on the side surface of the rotary body which comprises the said door unit. It is a left view of the said door unit. It is a schematic diagram which shows a mode that the said door unit was attached to the door. It is a schematic diagram which shows the mode of the said door unit when the door is open. It is a schematic diagram which shows the mode of the said door unit when the door is closed. It is a schematic diagram of sectional drawing which shows the relationship between the biasing member which comprises the said door unit, and a contact part when the door is open. It is a schematic diagram of sectional drawing which shows the relationship between the said urging | biasing member and a contact part when a door is closed. It is a schematic diagram which shows the relationship between the drive part which comprises the said door unit, a contact part, and a rotary body when the door is open. It is a schematic diagram which shows the relationship between the said drive part, a contact part, and a rotary body when a door is closed. It is a schematic diagram which shows the one-way clutch structure applicable to the said door unit. It is a timing chart which shows the relationship between opening and closing of a door, and the said symbol which the said door unit displays. It is a schematic diagram which shows another embodiment of the door unit concerning this invention.

  Hereinafter, a door unit according to the present invention will be described with reference to the drawings.

  In the following description, the case where the door is an open / close door is described as an example.

● Door unit (1) ●

  FIG. 1 is a front view showing an embodiment of a door unit according to the present invention. The door unit 1 has a window 2 and a rotating body 3 on the front surface. Further, the door unit 1 includes an engaging portion 4, a unit main body 5, a contact portion 6, and a hole 8 which will be described later.

Window 2 The window 2 is a communication hole that communicates the exterior and interior of the door unit 1. The window 2 is provided on the front side of the unit body 5. The window 2 is adjacent to a rotating body 3 described later disposed inside the unit main body 5. Therefore, the rotating body 3 and the symbol 31 drawn on the side surface 3 a of the rotating body 3 are visible from the outside of the unit body 5 through the window 2.

About Rotating Body 3 The rotating body 3 is a cylindrical component that is rotationally driven by a drive unit described later. The rotating body 3 is disposed inside the unit main body 5. Details of the arrangement of the rotating body 3 and the drive unit will be described later.

  A plurality of symbols are drawn on the side surface 3 a of the rotating body 3. FIG. 1 shows that the pattern 31 drawn on the side surface 3 a of the rotating body 3 is visible from the outside of the door unit 1 through the window 2. Note that the symbols that can be viewed from the window 2 at a time are only some of the symbols drawn on the side surface 3 a of the rotating body 3.

  FIG. 2 is a schematic diagram illustrating an example of a plurality of symbols drawn on the side surface 3 a of the rotating body 3. FIG. 2 shows that the symbol 31, the symbol 32, the symbol 33, and the symbol 34 are displayed in the rotation direction of the rotating body 3. That is, when the symbol 31 is visible from the window 2, the symbol visible from the window 2 becomes the symbol 32 when the rotating body 3 rotates 90 °. When the symbol 34 is visible from the window 2, the symbol visible from the window 2 becomes the symbol 31 when the rotating body 3 rotates 90 °.

  The number of symbols drawn on the side surface 3a of the rotating body 3 is arbitrary.

  FIG. 3 is a left side view of the door unit 1. FIG. 3 shows a state in which the engaging portion 4 and the contact portion 6 of the door unit 1 are provided on the back surface 43 of the unit main body 5.

-About the engaging part 4 The engaging part 4 is components for attaching the door unit 1 to the door 10. As shown in FIG. The engaging portion 4 is provided on the rear surface 43 of the unit body 5. The engaging portion 4 includes an inner surface engaging portion 41 and an upper surface engaging portion 42 connected to the inner surface engaging portion 41. The door unit 1 is fixed to the door 10 by the inner side surface 41a of the inner side surface engaging portion 41, the inner side surface 42a of the upper surface engaging portion 42, and the back surface 43 of the unit main body 5 coming into contact with the door 10, respectively. The In addition, the thickness of the upper surface engaging portion 42 is a thickness that allows the door 10 to be opened and closed while the door unit 1 is attached to the door 10.

  The engaging portion 4 may be formed integrally with the back surface 43, or may be made of a separate member from the back surface 43 and fixed to the back surface 43 by screws or fitting.

-Contact part 6 The contact part 6 is a rod-shaped component which contacts or does not contact the opening part 11 mentioned later. That is, the contact part 6 contacts the opening part 11 when the door 10 is closed. On the other hand, the contact portion 6 is not in contact with the opening portion 11 when the door 10 is open. The contact portion 6 passes through the hole 8 provided in the back surface 43 and extends to the inside of the unit body 5. Further, the contact portion 6 can reciprocate linearly in the left-right direction on the paper surface, that is, can advance and retreat by an internal mechanism of the unit body 5 described later.

  In the present invention, the operation of the contact portion 6 is not limited to linear reciprocation. That is, the operation of the contact portion 6 is not limited as long as it is in contact with the opening 11 when the door 10 is closed and is not in contact with the opening 11 when the door 10 is open.

  Here, the opening 11 is a door frame to which the door 10 is fixed so as to be opened and closed.

-About hole 8 Hole 8 is a communicating hole which connects the exterior and the inside of door unit 1. The size of the hole 8 is larger than the end area of the contact portion 6. That is, the contact portion 6 passes through the hole 8 into and out of the unit main body 5.

FIG. 4 is a schematic diagram illustrating a state in which the door unit 1 is attached to the door. The door 10 is fixed to the opening 11 so that it can be opened and closed. The door 10 is provided with a door knob 73.

  The door unit 1 is fixed to the upper surface of the door 10 with an engaging portion 4. The door unit 1 is arranged so that the window 2 faces the outside of the door 10. Here, the outside of the door 10 is, for example, the outside of a house entrance. Since the window 2 is arranged so as to face the outside of the door 10, the design of the rotating body 3 can be visually recognized from the outside of the door 10.

  The upper surface of the unit body 5 is located above the upper surface of the door 10. With this structure, the contact portion 6 of the unit main body 5 can contact the opening 11.

About the operation | movement of the door unit 1 accompanying opening / closing of the door 10 Hereinafter, the operation | movement of the door unit 1 accompanying opening / closing of the door 10 is demonstrated in order.

● Relationship between contact portion 6 and opening 11 associated with opening / closing of door 10 First, the relationship between contact portion 6 and opening 11 associated with opening / closing of door 10 will be described.

  FIG. 5 is a schematic diagram showing a state (opened state) of the door unit 1 when the door 10 is open, that is, when the door 10 is not positioned in the opening 11. At this time, the contact portion 6 does not contact the opening portion 11. Moreover, the contact part 6 has advanced to the opening part 11 side.

  FIG. 6 is a schematic diagram showing a state (closed state) of the door unit 1 when the door 10 is closed, that is, when the door 10 is located in the opening 11. At this time, the contact portion 6 contacts the opening portion 11. Further, the contact portion 6 linearly moves in the right direction, that is, in the direction toward the inside of the unit main body 5, by the drag in the right direction on the paper surface caused by the contact with the opening portion 11. As a result, the contact portion 6 retreats to the side opposite to the opening 11 side. In FIG. 6, the contact portion 6 is inside the unit body 5 and is not visible from the outside of the unit body 5.

  The door unit 1 shifts from the closed state to the open state when the door 10 is opened. Moreover, if the door 10 is closed, it will transfer from an open state to a closed state. The door unit 1 can repeatedly shift between a closed state and an open state.

-Relationship between the urging member 7 and the contact portion 6 Next, the relationship between the urging member 7 and the contact portion 6 when the door 10 is opened and closed will be described.

  FIG. 7 is a schematic diagram of a cross-sectional view showing the relationship between the urging member 7 and the contact portion 6 constituting the door unit 1 in the opened state of the door unit 1. Inside the unit main body 5, there are a rotating body 3, a contact portion 6, an urging member 7, and a drive portion (not shown).

About the urging member 7 The urging member 7 has an elastic force in the linear movement direction of the contact portion 6. The urging member 7 is, for example, a coil spring. One end of the urging member 7 is fixed to the end of the contact portion 6, and the other end of the urging member 7 is fixed to the inner surface of the unit body 5.

  In the opened state of the door unit 1, the contact portion 6 does not contact the opening portion 11. Here, the urging member 7 urges the contact portion 6 toward the opening 11 by the elastic force of the urging member 7. Therefore, the contact portion 6 advances from the unit body 5 to the opening 11 side by the urging force of the urging member 7. At this time, the length of the biasing member 7 in the direction having the elastic force is a natural length.

  FIG. 8 is a schematic cross-sectional view showing the relationship between the urging member 7 and the contact portion 6 constituting the door unit 1 in the closed state of the door unit 1.

  In the closed state of the door unit 1, the contact portion 6 contacts the opening 11. Therefore, the contact portion 6 moves backward to the opposite side of the opening portion 11 against the biasing force of the biasing member 7. At this time, the length of the biasing member 7 in the direction having the elastic force is contracted by the distance from which the biasing member 7 is retracted compared to the natural length due to the drag from the contact portion 6.

  In this way, the urging member 7 moves back and forth with the opening and closing of the door 10, whereby the opening and closing movement of the door 10 can be converted into a linear reciprocating movement of the contact section 6. The linear reciprocating motion of the contact portion 6 is converted into the operation of the drive portion described later.

● Relationship Between Drive Unit, Rotating Body 3 and Contact Unit 6 Next, the relationship between the drive unit, contact unit 6 and rotator 3 constituting the door unit 1 will be described.

  FIG. 9 is a schematic diagram illustrating a relationship among the drive unit, the contact unit 6, and the rotating body 3 in the opened state of the door unit 1.

About Drive Unit The drive unit includes a rack 61, a spur gear 62, a spur gear 63, and a one-way clutch 100 (not shown) that is disposed inside the rotating body 3 and is disposed inside the unit body 5. . The one-way clutch 100 will be described later.

  The rack 61 is provided in a part of the contact portion 6. The rack 61 meshes with the spur gear 62 in the unit body 5. The spur gear 62 is in mesh with the spur gear 63. The spur gear 63 includes the shaft member 101 shown in FIG. 11 on the same axis as the spur gear 63. The shaft member 101 is disposed coaxially with the rotating body 3 inside the rotating body 3. The shaft member 101 is a member constituting the one-way clutch 100. The shaft member 101 rotates in the same direction as the spur gear 63 as the spur gear 63 rotates.

  Here, the one-way clutch 100 is configured such that the torque of the shaft member 101 is transmitted to the rotating body 3 when the shaft member 101 rotates in the direction of the arrow R2. On the other hand, in the one-way clutch 100, the shaft member 101 idles with respect to the rotating body 3 when the shaft member 101 rotates in the direction opposite to the arrow R2. That is, the torque of the shaft member 101 generated in the direction opposite to the arrow R <b> 2 is configured not to be transmitted to the rotating body 3.

Operation of Drive Unit Next, the operation of the drive unit and the rotating body 3 when the door 10 is opened and closed will be described with reference to FIG.

  First, the operation of the drive unit when the door unit 1 shifts from the open state to the closed state will be described.

  When the contact portion 6 comes into contact with the opening portion 11 and receives a drag in the direction of the arrow L from the opening portion 11, the contact portion 6 moves backward to the opposite side of the opening portion 11. That is, the rack 61 moves linearly in the direction of the arrow L.

  Next, the spur gear 62 rotates in the direction of the arrow R1 about the axis O1 as the rack 61 moves linearly.

  Next, the spur gear 63 rotates in the direction of the arrow R2 about the axis O2 as the spur gear 62 rotates. At this time, the shaft member 101 rotates in the direction of the arrow R2 as the spur gear 63 rotates.

  Next, the rotating body 3 rotates in the direction of the arrow R3 about the axis O2 as the shaft member 101 rotates. Here, the direction of the arrow R3 is the same as the direction of the arrow R2.

  FIG. 10 is a schematic diagram illustrating the relationship among the drive unit, the contact unit 6, and the rotating body 3 when the door unit 1 is closed. A symbol A given to the surface of the rotator 3 indicates that the position has been moved from the position shown in FIG. 9 to the position shown in FIG. 10 by the operation of the drive unit described above.

  Here, the symbols visible from the window 2 change as the rotating body 3 rotates.

  The angle at which the rotating body 3 rotates may be set according to the number of symbols drawn on the side surface 3a of the rotating body 3. That is, when the drive unit performs the above-described operation once, the symbol visible from the window 2 may be set to change to the symbol adjacent to the side surface 3a. For example, when the number of symbols is 4, the angle at which the rotating body 3 rotates by one operation of the drive unit may be set to 90 °.

  Next, the operation of the drive unit when the door unit 1 shifts from the closed state to the open state will be described.

  When the contact portion 6 is released from contact with the opening portion 11, the contact portion 6 advances from the unit main body 5 to the opening portion 11 side by the urging force of the urging member 7. That is, the rack 61 moves linearly in the direction opposite to the arrow L.

  Next, the spur gear 62 rotates in the direction opposite to the arrow R <b> 1 about the axis O <b> 1 as the rack 61 moves linearly.

  Next, the spur gear 63 rotates in the direction opposite to the arrow R2 around the axis O2 as the spur gear 62 rotates. At this time, the shaft member 101 rotates in the direction opposite to the arrow R2 as the spur gear 63 rotates.

  Here, the shaft member 101 idles with respect to the rotating body 3 when rotating in the direction opposite to the arrow R2. Therefore, the rotating body 3 does not rotate. That is, the symbol that can be seen from the window 2 does not change when shifting from the closed state to the open state.

-About the structure of the one-way clutch 100 Next, the structure of the one-way clutch 100 is demonstrated.

  The one-way clutch 100 is a clutch mechanism that transmits rotational force only in one direction.

  FIG. 11 is a schematic diagram showing the one-way clutch 100. The one-way clutch 100 includes a shaft member 101, an outer ring 102, a roller 103, and an elastic member 104. A rotating body 3 is fixed to the outside of the outer ring 102.

  The shaft member 101 is a cylindrical member for transmitting torque with the outer ring 102. The outer ring 102 is an annular member. The outer ring 102 has a through hole 102a into which the shaft member 101 is fitted at the center, and a plurality of pocket portions 110 (in the present embodiment, provided in the inner peripheral surface so as to be recessed toward the outer peripheral side at equal intervals in the circumferential direction. 6), and a holding portion 111 and a holding portion 112 provided at the circumferential edge of the pocket portion 110 so that the opening width of the pocket portion 110 is reduced. Further, an inclined surface provided on the concave surface of the pocket portion 110 so that the interval between the concave surface of the pocket portion 110 and the outer peripheral surface of the shaft member 101 decreases toward one side in the circumferential direction (left side in FIG. 11). 110a is formed.

  The roller 103 is a columnar member provided corresponding to the inclined surface 110 a in the pocket portion 110. The roller 103 is provided to transmit torque by being interposed between the shaft member 101 and the outer ring 102. The elastic member 104 is formed of an accordion spring obtained by bending a metal plate-like member, for example, and is provided so as to urge the roller 103 in a direction in which the interval between the inclined surface 110a and the outer peripheral surface of the shaft member 101 is reduced. .

● Operation of the one-way clutch 100 Next, the operation of the one-way clutch 100 will be described.

  First, when the shaft member 101 rotates relative to the outer ring 102 in the R2 direction, the roller 103 moves to the holding unit 111 side. As a result, the roller 103 is engaged between the inclined surface 110a of the pocket portion 110 and the outer peripheral surface of the shaft member 101, and the shaft member 101 and the outer ring 102 are locked. Thereby, the torque of the shaft member 101 is transmitted to the outer ring 102 via the roller 103.

  On the other hand, when the shaft member 101 rotates relative to the outer ring 102 in the direction opposite to the arrow R2, the roller 103 overcomes the urging force of the elastic member 104 and moves to the holding portion 112 side. As a result, a gap is formed between the inclined surface 110a of the pocket portion 110 and the outer peripheral surface of the shaft member 101, and the shaft member 101 and the outer ring 102 become free. Thereby, the shaft member 101 idles.

● Relationship between Open / Close of Door 10 and Symbol Displayed by Door Unit 1 Next, the relationship between the opening / closing of the door 10 and the symbol displayed by the door unit 1 will be described. Here, the symbol displayed by the door unit 1 refers to a symbol that is visible from the outside through the window 2 among the symbols drawn on the side surface 3 a of the rotating body 3.

  FIG. 12 is a timing chart showing the relationship between the opening and closing of the door 10 and the symbols displayed by the door unit 1.

  Here, the symbol displayed by the door unit 1 is one type of symbols on the side surface 3 a of the rotating body 3. The symbol displayed by the door unit 1 changes when the door 10 is closed.

  That is, first, the door unit 1 displays the symbol 31. Next, when the door 10 is opened and closed, the symbol 32 is displayed instead of the symbol 31 (time T1). Next, when the door 10 is further opened and closed, the symbol 33 is displayed instead of the symbol 32 (time T2). Next, when the door 10 is further opened and closed, the symbol 34 is displayed instead of the symbol 33.

  As described above, the symbol displayed by the door unit 1 changes every time the door 10 is opened and closed, so that a supervisor who visually recognizes the symbol can know whether or not the door 10 has recently been opened and closed. That is, if the symbol displayed last time is different from the symbol displayed this time, the supervisor can determine that the door 10 has been opened and closed during this time.

  According to the embodiment described above, the door unit 1 can detect the opening / closing of the door 10 and display the fact that the door has been opened / closed so as to be visible from the outside of the entrance.

  In addition, embodiment described above was a door unit attached to an opening / closing door. However, the door unit according to the present invention can also be applied to other doors, for example, elevating doors.

● Door unit (2) ●
Next, another embodiment of the door unit according to the present invention will be described with a focus on differences from the above-described embodiment. Here, the present embodiment is different from the embodiments described so far in that the contact portion is a latch member that can be advanced and retracted from the door toward the latch receiving hole provided in the opening.

  FIG. 13 is a schematic diagram showing an embodiment of a door unit according to the present invention. The door unit 201 is provided with a window 202 on the surface of the door 200. That is, the door unit 201 is integrated with the door 200. The door unit 201 includes a rotating body 203 and a driving unit (not shown) inside the door 200. A part of the rotating body 203 is visible from the window 202. FIG. 13 shows that the symbol 2031 is visible from the window 202.

  The rotating body 203 and the drive unit are mechanically connected to the latch member 71 inside the door 200. The latch member 71 is provided on the side surface of the door 200. The latch member 71 is provided inside the door 200 so as to be able to advance and retract. The latch receiving hole 72 constitutes a part of the opening 211. The latch receiving hole 72 extends from the outside of the opening 211 (door 200 side) to the inside of the opening 211. The latch receiving hole 72 is provided at a position where the latch member 71 contacts when the door 200 is closed.

Next, the operation of the door unit 201 accompanying the opening / closing of the door 200 will be described.

  When the door 200 is open, that is, when the door 200 is not located in the opening 211, the latch member 71 does not contact the latch receiving hole 72 (that is, the opening 211). Therefore, the latch member 71 advances from the side surface of the door 200 to the outside of the door 200.

  When the door 200 is closed, that is, when the door 200 is positioned in the opening 211, the latch member 71 contacts the latch receiving hole 72 (that is, the opening 211). In addition, the latch member 71 is moved back in the right direction, that is, in the direction toward the inside of the door 200 by the rightward drag force generated by the contact with the opening 211. As a result, the latch member 71 is retracted to the side opposite to the opening 211.

  When the latch member 71 moves backward, the rotating body 203 is rotated by a driving unit (not shown) provided inside the door 200. That is, the symbol seen from the window 202 changes from the symbol 2031 to a symbol 2032 (not shown).

  Here, the drive part in this Embodiment rotates the rotation body 203 as the structure similar to the rack 61, the spur gear 62, the spur gear 63, and the one-way clutch 100 in embodiment demonstrated previously, for example.

  According to the embodiment described above, since each component of the door unit 201 can be built in the door 200, space saving of the door unit according to the present invention can be realized.

DESCRIPTION OF SYMBOLS 1 Door unit 2 Window 3 Rotating body 3a Side surface of the rotating body 4 Engagement part 5 Unit main body 6 Contact part 7 Energizing member 10 Door 11 Opening part 71 Latch member 72 Latch receiving hole 100 One-way clutch

Claims (6)

A door unit provided in a door fixed to the opening so as to be openable and closable,
A rotating body,
A contact portion in contact with or non-contact with the opening;
A drive unit that rotationally drives the rotating body in accordance with contact or non-contact of the contact part with the opening,
It is visible from the outside of the door that the rotating body has rotated.
A door unit characterized by that. A biasing member that biases the contact portion toward the opening;
With
When the door is opened, the contact portion is released from contact with the opening, and advances toward the opening by the biasing force of the biasing member.
The door unit according to claim 1. When the door is closed, the contact portion comes into contact with the opening, and retreats to the opposite side of the opening against the biasing force of the biasing member.
The door unit according to claim 2. The contact portion is a latch member that can be advanced and retracted from the door toward a latch receiving hole provided in the opening.
The door unit according to claim 1. A unit body in which the rotating body is incorporated;
With
A pattern is displayed on the surface of the rotating body,
The unit body includes a window that allows only a part of the symbols to be visually recognized from the outside of the unit body.
The door unit according to any one of claims 1 to 4. A door fixed to the opening so as to be openable and closable,
A rotating body,
A contact portion in contact with or non-contact with the opening;
A drive unit that rotationally drives the rotating body in accordance with the contact or non-contact of the contact part with the opening;
Having
It is visible from the outside of the door that the rotating body has rotated.
A door characterized by that.

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