JP2012172450A - Door system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door system capable of suitably moving a door left at a midway position which is neither a close position nor an open position to the close position or the open position and thus holding the door at the close position or the open position.SOLUTION: A door system X comprises: a latch mechanism 100 for holding a door D at a close position; a door catcher 200 for holding the door D at an open position; and a hinge 400 rotatably supporting the door D, and urging the door, which is at a midway position between the open position and the close position, to either an open direction or a close direction by using a prescribed opening angle with respect to an opening S as a boundary.

Description

  The present invention relates to a door system applicable to, for example, a revolving door (hereinafter referred to as a “door”) that can partition an indoor space and an outdoor space, and in particular, prevents and suppresses the operation of the revolving door unexpectedly opening and closing. It is intended to improve the performance.

  For example, when a revolving door (hereinafter referred to as a “door”) that partitions a residential space and a non-residential space is left at a halfway position between the open position and the closed position, When the wind flows, the door may suddenly close or open. In particular, recently, many houses have a highly airtight structure to achieve a good living comfort, so even a slight wind (for example, the wind of a ventilation fan) can cause a pressure difference between the spaces, A door in a halfway position that is neither an open position nor a closed position rotates unintentionally, and for a person near the door, the door can be dangerous. In particular, when a gust of wind blows, there is a risk that the door will rotate toward the closing position or the opening position at a rapid speed, which increases the danger and may generate a loud collision sound (impact sound). The phenomenon is particularly likely to occur on higher floors.

  Therefore, a door locker that prevents the door in the closed position from being opened unexpectedly by a latch mechanism that can moor the door in the closed position to the door frame, or that keeps the door in the open position in that position. A structure that prevents the door in the open position from closing unexpectedly due to (door contact) is employed (see, for example, Patent Document 1).

JP 2000-456060 A

  However, since the latch mechanism and door catcher function only when the door is in the closed position or the open position as a matter of course, when the door is left in an intermediate position that is neither the closed position nor the open position. May cause the above-mentioned problems. The inventors know from experience that there are many users who unintentionally leave the door in a position that is neither the closed position nor the open position.

  In addition, although a mode in which a door damper that biases the door toward the closed position is also known, when the wind pressure against the force that biases the door to the closed position by the door damper is larger than the biasing force Cannot perform its function, and the above-mentioned problems can occur.

  The present invention has been made paying attention to such a problem, and the main purpose thereof is to appropriately move a door left in an intermediate position that is neither a closed position nor an open position to a closed position or an open position. An object of the present invention is to provide a door system that can be held in a closed position or an open position.

  That is, the present invention is a door system applicable to a door that can be opened and closed while rotating an opening in a room, a latch mechanism that holds the door in a closed position, a door catcher that holds the door in an open position, A hinge that supports the door in a rotatable manner and biases the door in the middle position between the opening position and the closing position in either the opening direction or the closing direction at a predetermined opening angle with respect to the opening. It is characterized by having.

  Here, the latch mechanism may automatically hold the door in the closed position, or may hold the door in the closed position through a manual operation. Similarly, the door catcher may be one that automatically holds the door in the open position, or one that holds the door in the open position through a manual operation. The “predetermined opening angle with respect to the opening” is a value that can be set as appropriate depending on the structure of the building, the user's request, and the like.

  With such a door system, when the door is left in an intermediate position that is neither the closed position nor the open position, the door is closed or opened according to the action of the hinge, that is, the opening angle of the door with respect to the opening. By energizing either one of the directions, the door moves in the closing direction or the opening direction without stopping at the left halfway position. The door that has reached the closed position can hold its position by the latch mechanism, and the door that has reached the closed position can hold its position by the door catcher. Therefore, according to the door system according to the present embodiment, in the state where the door is left in the middle position, a malfunction that may occur when a pressure difference occurs between the two spaces to be partitioned by the door due to wind, that is, the door It is possible to prevent / suppress the problem of unexpectedly rotating in the closing direction or the opening direction and causing not only a large impact sound but also a dangerous substance by a person near the door.

  Moreover, in the door system of this invention, as a hinge used suitably, the 1st hinge element which has a 1st axial cylinder, the 2nd hinge element which has a 2nd axial cylinder, and a one end part side area | region inside a 1st axial cylinder A non-rotatably inserted shaft, the other end side region being rotatably inserted into the second shaft cylinder, and the shaft cylinders arranged coaxially with each other, and a shaft in a non-rotatable state within the second shaft cylinder A cylindrical cam member which is accommodated so as to be movable up and down in the direction and has a cam groove engageable with a cam pin provided in the other end side region of the shaft, and a compression spring accommodated in the second shaft cylinder Can be mentioned. In such a hinge, the cam groove is directed to the inclination switching area from two different points in the circumferential direction of the cylindrical cam member, and the inclination switching area which is the area closest to the first shaft cylinder among the cam grooves. The cam pin moves in the first inclined region of the cam groove toward the inclined switching region by applying a substantially mountain-folded shape having a first inclined region and a second inclined region that are gradually inclined in this way; and When the cam pin moves in the second inclination area of the cam groove toward the inclination switching area, the compression spring is pressed in the compression direction by the cylindrical cam member that moves in the direction away from the first axis cylinder in the second axis cylinder. It is preferable to configure so as to.

  With such a hinge, when the first hinge element is rotated in a predetermined direction (this direction is the forward direction) with respect to the second hinge element, the shaft together with the first hinge element is relative to the second shaft. By rotating the cam pin, the cam pin moves toward the tilt switching region while being guided by either the first tilt region or the second tilt region (for example, the first tilt region) of the cam groove in the second shaft cylinder. At this time, since the shaft is restricted from moving toward the first shaft cylinder, the cylindrical cam member moves in a direction away from the first shaft cylinder in the second shaft cylinder. Then, the compression spring is pressed in the compression direction by the cylindrical cam member. Then, when the cam pin reaches the inclination switching area and directly enters the other inclination area (for example, the second inclination area) beyond the inclination switching area, the action (restoring force) of the compression spring that tries to return to the pushed force. Thus, the cam pin automatically moves in the direction away from the tilt switching region in the tilt region (for example, the second tilt region).

  Here, a state before the first hinge element is rotated in the forward direction with respect to the second hinge element is defined as a first state, and the cam pin extends from one inclined region (for example, the first inclined region) to the other side beyond the inclined switching region. When the state after automatically moving the inclined region (for example, the second inclined region) is the second state, the hinge according to the present invention provides an operating force for rotating the first hinge element by a predetermined angle in the first state. Thus, it is possible to automatically shift to the second state.

  Further, in the second state, when the first hinge element is rotated in the reverse direction with respect to the second hinge element, the shaft rotates with respect to the second shaft cylinder together with the first hinge element, whereby the second shaft cylinder The cam pin moves toward the tilt switching region while being guided by the second tilt region of the cam groove. At this time, since the shaft is restricted from moving toward the first shaft cylinder, the cylindrical cam member moves in a direction away from the first shaft cylinder in the second shaft cylinder. Then, the compression spring is pressed in the compression direction by the cylindrical cam member. When the cam pin reaches the inclination switching area and enters the first inclination area beyond the inclination switching area, the cam pin automatically moves the inclination area away from the inclination switching area by the restoring force of the compression spring. Moving. As a result, the hinge automatically moves to the first state by applying an operating force that rotates the first hinge element by a predetermined angle in the second state.

  Further, according to the above-described operation principle, the first hinge element is rotated in the forward direction with respect to the second hinge element before the cam pin crosses the inclination switching region when the hinge is shifted from the first state to the second state. When the operating force to be stopped stops or decreases, the cam pin moves in the direction away from the tilt switching region by the restoring force of the compression spring. As a result, the hinge is in the first state. Similarly, when the hinge is shifted from the second state to the first state, the operating force for rotating the first hinge element in the reverse direction with respect to the second hinge element stops before the cam pin crosses the inclination switching region. Or when it falls, a cam pin moves to the direction which leaves | separates a 2nd inclination area | region from an inclination switching area | region by the restoring force of a compression spring. As a result, the hinge is in the second state.

  By attaching such a hinge between the door and the opening edge (attaching one of the hinge elements to the door and attaching the other hinge element to the opening edge), the structure is simple. However, the door can always be urged in either the closing direction or the opening direction, and the door is not left in the middle position for a while, which is preferable.

  Moreover, if the door system of the present invention is further provided with a door damper that assists the closing operation of the door, the movement speed of the door toward the closing position can be reduced by the action of the door damper, and the door The closing operation becomes even more reliable and smooth. Here, the door damper may adopt any mechanism or operating principle as long as it assists the closing operation of the door.

  In particular, if the door damper is configured to retract the door while decelerating in the closing direction when the door opening angle is smaller than a predetermined value, the situation where the door closes unintentionally at high speed is avoided. Therefore, safety can be improved, and it can be expected that the door is reliably moved to the closed position.

  Furthermore, if the door catcher automatically holds the door that has reached the open position, the door can be smoothly and easily locked in the open position.

  According to the present invention, since the door between the closed position and the open position can be urged by the hinge in either the closed direction or the open direction, the door in the midway position is closed. Or it can be moved to the open position. The door that has reached the closed position can be held by the latch mechanism, while the door that has reached the open position can be held by the door catcher, which can occur when the door is left in the middle position. That is, it is possible to prevent / suppress the situation where the door unexpectedly moves toward the closed position or the open position due to wind.

1 is an overall schematic diagram of a door system according to an embodiment of the present invention. The plane schematic diagram of the door system which concerns on the embodiment. FIG. 3 is a view corresponding to FIG. 2 in a state where the door is in the open position in the door system. The whole schematic diagram of the door catcher applied to the door system. FIG. 5 is a view corresponding to FIG. 4 in a state where the door is held in the open position by the door catcher. The exploded schematic diagram of the hinge applied to the door system. The top view of the 1st hinge element of the hinge. The front view of the 1st hinge element. The top view of the 2nd hinge element of the hinge. The front view of the 2nd hinge element. The front view of the shaft of the hinge. The Y direction arrow directional view of FIG. The fragmentary sectional view of the shaft seen from the angle different from FIG. The front view of the bearing of the hinge. FIG. 15 is a view in the Y direction of FIG. Action | operation explanatory drawing which shows a part of the hinge in cross section. The figure which shows in part the state which the cylindrical cam member of the same hinge expand | deployed. Action | operation explanatory drawing of the hinge. Action | operation explanatory drawing of the hinge. Action | operation explanatory drawing of the hinge. FIG. 3 is a view corresponding to FIG. 3 showing a modification of the door system according to the embodiment.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  The door system X according to the present embodiment is a system applicable to a door D (rotary door) that can be opened and closed while rotating, for example, an opening S communicating with an indoor space and an outdoor space. In the present embodiment, as shown in FIG. 1, a door frame W is provided around the opening S, and the door frame W can partition the space in the opening S from other spaces. It corresponds to.

  As shown in FIGS. 2 and 3, the door D has a closed position (C) in which one side edge portion is a hanging base side and can be fitted to the opening S to close the opening S, and the opening. It moves while rotating between the open position (O) where S is opened. In this embodiment, the position where the opening angle of the door D with respect to the opening S is approximately 180 degrees is set as the opening position (O).

  As shown in FIGS. 1 to 3, the door system X according to this embodiment includes a latch mechanism 100 that holds the door D in the closed position (C), and a door that holds the door D in the open position (O). The catcher 200, the door damper 300 for assisting the closing operation of the door D, and the door D that supports the door D in a rotatable manner and is in the middle position between the opening position (O) and the closing position (C). And a hinge 400 that urges the opening in the opening direction or the closing direction with a predetermined opening angle with respect to the opening S as a boundary.

  As shown in FIGS. 2 and 3, the latch mechanism 100 includes a latch claw 101 that can project and retract in the width direction of the door D at a predetermined height position of the side edge on the anti-suspending side, and an opening S Among them, a latch hole 103 formed in a side edge portion (side edge portion W1 of the door frame W) on the side opposite to the hanging side is provided, and the latch claw 101 is projected in the width direction of the door D from the side edge portion of the door D. When the latch claw 101 in the projecting state is engaged with the latch hole 103, the projecting state is changed between the projecting state and the retracted state retracted to the center in the width direction of the door D from the side edge of the door D. The door D is held in the closed position (C) (see FIG. 2). In the present embodiment, the latch claw 101 is set so as to always protrude by appropriate biasing means (not shown) such as a spring (see FIGS. 1 to 3).

  In the latch mechanism 100, when the door D that is not in the closed position (C) moves in the closing direction, the latch claw 101 that has been in the projecting state immediately before reaching the closed position (C) The side edge of the door frame W when the door D reaches the closed position (C) by temporarily immersing in the width direction of the door D by hitting the side edge on the anti-hanging side of W. When the latch claw 101 from which the interference with W1 has been eliminated enters the protruding state and engages with the latch hole 103, the door D can be held in the closed position (C). The latch claw 101 can be switched between the protruding state and the retracted state by operating the knob N provided on the door D. When the door D at the closed position (C) is moved in the opening direction. When the knob N is rotated in a predetermined direction or a button provided on the knob N is pressed, the latch claw 101 is switched from the protruding state to the retracted state, the engagement state with the latch hole 103 is released, and the door D is closed. It can be moved in the forming direction.

  As shown in FIGS. 1 to 3, the door catcher 200 includes a door catcher body 201 fixed to the floor surface and a lock pin 203 fixed to the door D. As shown in FIGS. 4 and 5, the door catcher body 201 includes a rotatable ring-shaped rotating body 205, a frame body 207 that houses a mechanism (not shown) for rotating the ring-shaped rotating body 205, a frame And a cover body 209 that can cover the body 207 from above.

  The frame body 207 has a substantially circular shape and is formed with a band-shaped cutout portion 211 having one end opened forward at the center. The notch 211 has a pin contact step 213 with which the pin main body 229 can come into contact with the front surface, and is provided in front of the pin contact step 213 and is slidable along the opening side edge of the notch 211. A bumper member 217 that integrally has a slide body 215 that fits in is disposed. After the frame body 207 is fixed at a predetermined position on the floor surface, the frame body 207 is covered from above with a cover body 209 having a notch portion 219 having substantially the same shape as the notch portion 211 of the frame body 207. A pin opening 221 that can accommodate the pin body 229 is formed by the cutout portion 219 of the cover body 209 and the portion of the cutout portion 211 of the frame body that communicates with the cutout portion 219 of the cover body 209 in plan view. .

  The ring-shaped rotating body 205 is loosely fitted to the frame body 207 so as to be freely rotatable, and a standing wall 223 and an opening 225 are repeatedly provided at the peripheral edge. In the present embodiment, the standing wall portion 223 and the opening portion 225 are set so as to be aligned in the circumferential direction at intervals of 45 degrees. On the back surface of the ring-shaped rotating body 205, the same number of saw blade-like engagement grooves as the total number of the standing wall portions 223 and the opening portions 225 on the front surface are formed at a predetermined pitch (in this embodiment, 45 ° intervals). (Not shown). A single ratchet piece (not shown) provided on the frame body 207 is set so as to be able to be engaged with the plurality of engaging grooves sequentially as the bumper member 217 moves forward and backward.

  The lock pin 203 is detachable against a spring bias in a state where the pin holding portion 227 fixed to the door D and the pin holding portion 227 are held downward and protrude below the lower edge portion of the pin holding portion 227. A pin body 229 is provided.

  Next, the operation and action of the door catcher 200 will be described with reference to FIGS. In a free state where the pin main body 229 is not restrained by the door catcher main body 201, the opening 225 of the ring-shaped rotating body 205 faces the pin opening 221 (see FIG. 4). In this state, when the door D moves in the opening direction and the pin main body 229 enters the pin opening 221, the pin main body 229 hits the front surface of the pin abutting step 213, and this pressing force causes the pin abutting. The entire bumper member 217 including the stepped portion 213 is pushed backward against the spring bias (not shown), and accordingly, the ring-shaped rotating body 205 is also accommodated in the frame 207 and is not shown. Rotate by. Then, the ratchet piece (not shown) releases the engaged state with the engaging groove of the ring-shaped rotating body 205 that has been engaged so far, and newly enters the next engaging groove arranged in the circumferential direction of the ring-shaped rotating body 205. Engage. In this state, the standing wall 223 of the ring-shaped rotating body 205 faces the pin opening 221, and the pin main body 229 is confined in the closed space formed by the pin opening 221 and the standing wall 223 ( (See FIG. 5). As a result, the door D is held in the open position (O).

  On the other hand, in order to release the locked state of the door D by the door catcher 200, it is only necessary to apply an operation force that further pushes the door D in the opening direction. That is, when the door D is further pushed in the opening direction, the entire bumper member 217 is pushed backward against the spring bias by the pressing force of the pin main body 229, and the ring-shaped rotating body 205 is rotated accordingly. Then, the ratchet piece releases the engagement state with the engagement groove of the ring-shaped rotating body 205 that has been engaged so far, and newly engages with the next engagement groove arranged in the circumferential direction of the ring-shaped rotating body 205. To do. At this time, the opening 225 of the ring-shaped rotating body 205 faces the pin opening 221 so that the pin main body 229 can be moved away from the door catcher main body 201 and the door D can be moved in the closing direction. Yes (Figure 4).

  As described above, the door catcher 200 applied in the present embodiment uses the pressing force generated when the door D moves in the opening direction, by a predetermined angle in the same direction from the state in which the ring-shaped rotating body 205 is stopped. By sequentially rotating, the pin opening 221 can be switched between an open state and a closed state.

  As shown in FIGS. 2 and 3, the door damper 300 is attached to the door D and exhibits a damper function from a predetermined time before reaching the closed position (C) to a time when reaching the closed position (C). A damper main body 301 and a receiving seat 303 attached to the door frame W are provided.

  In this embodiment, the damper body 301 is provided with a body portion 305 having a built-in hydraulic damper and a retractable arm 307 that can be rotated while receiving a predetermined resistance force against the body portion 305. is doing. The pull-in arm 307 is formed with a guide groove 311 that is guided by the shaft-like protrusion 309 of the receiving seat 303.

  When the door D is moved from the open position (O) toward the closed position (C) and the opening angle of the door D with respect to the opening S reaches a predetermined value (10 degrees in this embodiment), the guide As the shaft-shaped protrusion 309 of the seat 303 enters the groove 305, and the door D moves in the closing direction, the entire retractable arm 307 increases the degree of entry of the shaft protrusion 309 into the guide groove 305. However, the damper body 301 rotates while receiving a predetermined resistance against the main body portion 305.

  As a result, the door damper 300 exhibits an appropriate damper function during the closing operation of the door D, and decelerates the door D in the closing direction to reach the closing position (C). Sound) can be suppressed, and the entire door D can be appropriately drawn toward the closed position (C) by guiding the shaft-shaped protrusion 309 in the guide groove 305.

  As shown in FIG. 1, the hinge 400 includes a first hinge element 401 attached to the door D and a second hinge element 403 attached to a door frame W having an opening S that can be opened and closed by the door D. It is. In the present embodiment, the first hinge element 401 is an upper hinge element that is disposed relatively above the second hinge element 403, and the lower hinge element that is disposed relatively below the second hinge element 403. It is said.

  As shown in FIGS. 6 to 8 (FIGS. 7 and 8 are a plan view and a front view of the first hinge element 401, respectively), the first hinge element 401 includes a first blade plate 405 and a first blade plate. A first shaft cylinder 407 formed on one side edge portion of 405, and a screw inserted into a screw mounting hole 409 formed at a predetermined location (a location near the four corners in the illustrated example) of the first blade 405. It can be fixed to the door D by being screwed into a screw hole formed in D. An upper cap 411 is detachably attached to the upper end portion of the first shaft tube 407.

  As shown in FIGS. 6, 9, and 10 (FIGS. 9 and 10 are a plan view and a front view of the second hinge element 403, respectively), the second hinge element 403 includes a second blade 413, And a second shaft cylinder 415 formed on one side edge of the two blades 413, and a screw mounting hole 417 formed at a predetermined position (in the illustrated example, near the four corners and the central portion) of the second blade 413. The screw inserted into the door frame W can be fixed to the door frame W by being screwed into a screw hole formed in the door frame W. A lower cap 419 is detachably attached to the lower end portion of the second shaft cylinder 415.

  In addition to these hinge elements (the first hinge element 401 and the second hinge element 403), the hinge 400 according to the present embodiment inserts the upper end side region into the first shaft tube 407 in a non-rotatable manner and the lower end side. The region is inserted into the second shaft cylinder 415 so as to be rotatable, and the shaft 421 and the second shaft cylinder 415 are arranged coaxially with each other (the first shaft cylinder 407 and the second shaft cylinder 415). A cylindrical cam member 423 accommodated so as to be movable up and down in the axial direction A in a non-rotatable state and a compression spring 425 accommodated in the second axial cylinder 415 are provided.

  As shown in FIG. 6, the shaft 421 is integrally or integrally provided with a cam pin 427 in a substantially columnar lower end side region to be inserted into the second shaft cylinder 415. The number and formation locations of the cam pins 427 correspond to the number and formation locations of cam grooves 429 described later. In the present embodiment, a pair of cam pins 427 are provided in a portion of the shaft 421 whose phases are different by a predetermined angle (approximately 180 degrees in the illustrated example) in the circumferential direction, and these cam pins 427 are arranged in the axial direction A (height of the shaft 421). In the direction). Further, as shown in FIGS. 11 and 12 (FIG. 11 is a front view of the shaft 421 and FIG. 12 is a view taken in the direction of the arrow Y in FIG. 11), in the vicinity of the central portion in the height direction of the shaft 421, A ball bearing holding portion 433 that holds a ball bearing 431 described later rotatably is provided. A flat portion 435 extending along the axial direction A is formed on a part of the outer peripheral surface of the upper end portion side region of the shaft 421. As shown in FIG. 13, the shaft 421 has a screw hole that opens to the end surface of the upper end portion, and a ball holding hole that communicates with the tip portion of the screw hole and opens to the outer peripheral surface of the shaft 421. Can be applied. In this case, the degree of protrusion of the ball with respect to the outer peripheral surface of the shaft 421 can be changed by changing the screwing degree (entrance distance) of the hexagon socket set screw (enamel set) to the screw hole while the ball is accommodated in the ball holding hole. Can be adjusted. In the present embodiment, such an upper end portion side region of the shaft 421 is inserted into a bearing 437 provided in the first shaft tube 407 so as not to rotate. When the upper end side region of the shaft 121 is inserted into the bearing 137, the protrusion amount of the ball 126 with respect to the outer peripheral surface of the shaft 121 is set to zero or substantially zero or less, and the upper end side region of the shaft 121 is set to the bearing 137. After that, the degree of screwing (entrance distance) of the hexagon socket set screw 128 (hollow set) with respect to the screw hole 122 is adjusted using a tool such as a hexagon wrench, and the ball 126 against the outer peripheral surface of the shaft 121 is adjusted. The protrusion 126 is increased and the ball 126 is pressed against the inner peripheral surface of the bearing 137 (not shown). As a result, the first shaft cylinder 107 and the second shaft cylinder 115 can be firmly and coaxially connected via the shaft 121. Further, the door 126 is opened and closed by directly or indirectly contacting the ball 126 with the inner peripheral surface of the first shaft cylinder 107 (in the present embodiment, indirectly through the inner peripheral surface of the bearing 137). When the first shaft cylinder 107 and the second shaft cylinder 115 are rotated relative to each other, a sound that can reverberate in the shaft cylinders 107 and 115 due to the operation of the spring 125 and the cam mechanism (cam pin 127 and cam groove 129) is generated. Can be prevented / suppressed.

  As shown in FIGS. 6, 14 and 15 (FIG. 14 is a front view of the bearing 437, and FIG. 15 is a view in the direction of the arrow Y in FIG. 14), the bearing 437 has a substantially cylindrical shape and has an outer periphery. An engaging protrusion 441 that can be engaged with a slide groove 439 extending in the axial direction A formed on the inner peripheral surface of the first shaft cylinder 407 is formed on a part of the surface, and on a part of the inner peripheral surface, A flat portion 443 corresponding to the cross-sectional shape of the upper end portion side region of the shaft 421 is formed. Then, by engaging the engaging protrusion 441 with the slide groove 439 of the first shaft cylinder 407, the bearing 437 cannot rotate with respect to the first shaft cylinder 407. Further, by inserting the upper end side region of the shaft 421 into the bearing 437 so that the flat portion 435 of the shaft 421 can face the flat portion 443 of the bearing 437, the bearing 437 holds the shaft 421 in a non-rotatable manner. Can do.

  Note that, before the upper end side region of the shaft 421 is inserted into the bearing 437, a ball bearing holding body 445 (see FIG. 6) that is a separate body from the shaft 421, and a ball bearing holding portion 433 of the shaft 421, During this time, a large number of ball bearings 431 are held in a rotatable state. Then, with the washer 446 fixed to the upper end opening in the second shaft cylinder 415, the shaft 421 is inserted from the lower end opening of the second shaft cylinder 415 to which the lower cap 419 is not attached, and the upper end side By passing the region through the inner hole of the washer 446, the shaft 421 is in a state where the lower end side region is accommodated in the second shaft cylinder 415 and the upper end side region is exposed outside the second shaft cylinder 415. In this state, the ring-shaped bush 447 having the same outer diameter as each shaft cylinder (the first shaft cylinder 407 and the second shaft cylinder 415) is dropped downward from the upper end of the shaft 421, and the upper end of the second shaft cylinder 415 is dropped. It is arranged at a position in contact with or close to the opening or washer 446. When the upper end side region of the shaft 421 is inserted into the bearing 437 in this state, the ring-shaped bush 447 contacts the lower end opening of the first shaft tube 407 or the lower end opening of the bearing 437 as shown in FIG. Or close. The washer 446 can reduce the frictional resistance generated when the first hinge element 401 and the second hinge element 403 move relative to each other about the shaft 421. FIG. 16 is a diagram schematically showing a state in which the first blade 405 of the first hinge element 401 and the second blade 413 of the second hinge element 403 substantially overlap each other in a plan view. .

  As shown in FIG. 6, the cylindrical cam member 423 has a substantially cylindrical shape and can engage with an outer peripheral surface of a slide groove 447 extending in the axial direction A formed on the inner peripheral surface of the second shaft cylinder 415. The engaging ridge portion 449 is provided. The cylindrical cam member 423 has a cam groove 429 having a predetermined shape. The cam groove 429 is a position closest to the first shaft tube 407 side in the cam groove 429 (in the present embodiment, as shown in FIG. 17), which shows a part of the expanded state of the cylindrical cam member 423. An inclination switching region 451 formed at the highest position of the groove 429, and extends from the inclination switching region 451 in one direction (forward direction) along the circumferential direction of the cylindrical cam member 423, and gradually from the first shaft cylinder 407. The first inclined region 453 inclined in the direction of separating (downward in the present embodiment), and the other direction along the circumferential direction of the cylindrical cam member 423 (reverse direction) is extended from the inclination switching region 451 to the first It has a substantially downward V-shape having a second inclined region 455 inclined in a direction gradually separating from the shaft tube 407. In the present embodiment, the inclination switching area 451 is shaped so that the cam pin 427 that has reached the inclination switching area 451 from one of the first inclination area 453 or the second inclination area 455 can immediately move to the other inclination area. The setting is applied. Therefore, the inclination switching region 451 determines the point (determining whether the cam pin 427 automatically passes through the first inclined region 453 or the cam pin 427 automatically passes through the second inclined region 455 in the cam groove 429). Functions as a branching point).

  In the present embodiment, the cam groove 429 is a direction in which the cam groove 429 is farther away from the first shaft tube 407 than the first tilt region 453 from a position farthest from the first shaft tube 407 in the first tilt region 453. The first steep slope region 457 inclined to the second tilt region 455 is formed at a steeper slope than the second tilt region 455 from the position farthest from the first shaft tube 407 in the second tilt region 455. A structure in which a second steep slope region 459 inclined in a separating direction is formed is applied. In the hinge 400 according to the present embodiment, such a cam groove 429 is formed in the cylindrical cam member 423 at a location where the phase is varied by a predetermined angle (approximately 180 degrees in the illustrated example) in the circumferential direction. In particular, in the present embodiment, the pair of cam grooves 429 are formed stepwise along the axial direction A. Note that the engaging protrusion 449 extending in the height direction on the outer peripheral surface of the cylindrical cam member 423 is partially cut by the cam groove 429 (see FIG. 6). In the present embodiment, the pair of engaging ridges 449 are formed at positions that are 180 degrees out of phase on the outer peripheral surface of the cylindrical cam member 423, and are formed by the cam grooves 429 in the respective engaging ridges 449. The formation location of the cam groove 429 is set so that there is one cut location.

  As a mode in which the cam pin 427 is engaged with the cam groove 429 and the cylindrical cam member 423 and the shaft 421 are assembled to each other, the cam pin 427 is screwed into the cam pin mounting screw hole 461 formed in the cylindrical cam member 423. The region on the lower end portion side of the shaft 421 is inserted into the cylindrical cam member 423 before the engagement, and the cam pin 427 is inserted into the cam pin mounting screw hole 461 at a position where the cam groove 429 and the cam pin mounting screw hole 461 communicate with each other. For example, the screw pin 427 may be attached by screwing, or the cam pin 427 may be fixed to a predetermined portion of the cylindrical cam member 423 by welding or the like after the region on one end of the shaft 421 is inserted into the cylindrical cam member 423.

  As shown in FIGS. 6 and 16, the compression spring 425 is accommodated in the second shaft cylinder 415 so that the shaft 421 having the lower end side region inserted into the second shaft cylinder 415 can be pressed from the lower end. It is. Then, the compression spring accommodated in the second shaft cylinder 415 is changed by changing the threading degree (entrance distance) of the compression amount adjusting screw 463 screwed into the region near the lower end opening of the second shaft cylinder 415. The amount of compression of the entire 425 can be adjusted. In this embodiment, a washer 465 is interposed between the compression spring 425 and the compression amount adjusting screw 463.

  Next, the operation and action of the hinge 400 having such a configuration will be described.

  In the present embodiment, when the door D is in the closed position (C), the cam pin 427 of the shaft 421 is positioned in the first steep slope region 457 of the cam groove 429, and the door D is in the open position (O). The cam pin 427 of the shaft 421 is set so as to be positioned in the second steep slope region 459 of the cam groove 429 (see FIGS. 16 and 17, and in FIG. 17, the cam pin 427 itself and its movement locus are represented by a two-dot chain line. ).

  First, when an operating force is applied to rotate the door D in the closed position (C) in the opening direction, the first hinge element 401 fixed to the door D is applied to the second hinge element 403 fixed to the door frame W. With this rotation, the shaft 421 that rotates integrally with the first shaft cylinder 407 rotates with respect to the second shaft cylinder 415. Here, since the upper end portion of the shaft 421 is held non-rotatably by a bearing 437 provided in a non-rotatable manner in the first shaft tube 407, the shaft 421 is integrated with the first shaft tube 407 into the second shaft tube 415. Rotate against. When the shaft 421 rotates with respect to the second shaft cylinder 415 together with the first shaft cylinder 407, the cam pin 427 provided in the lower end side region of the shaft 421 causes the first steep slope area 457 and the first slope area 453 in the cam groove 429. And moving toward the tilt switching area 451 in order. Since the shaft 421 itself is restricted from moving upward (moving toward the first shaft tube 407) by the ring-shaped bush 447 within the second shaft tube 415, the cam pin 427 of the shaft 421 moves toward the tilt switching region 451. The cylindrical cam member 423 descends against the spring force of the compression spring 425 by moving the one inclined region 453. Therefore, the compression amount of the compression spring 425 increases as the cam pin 427 that moves in the first inclined area 453 toward the inclination switching area 451 approaches the inclination switching area 451. As shown in FIG. 18, the compression amount of the compression spring 425 becomes maximum when the cam pin 427 reaches the inclination switching area 451 from the first inclination area 453. Next, when the cam pin 427 passes (becomes) the inclination switching area 451, the cam pin 427 moves in a direction away from the inclination switching area 451 while following the second inclination area 455. At this time, since the cylindrical cam member 423 is pushed up by the elastic restoring force (restoring force) of the compression spring 425, the cam pin 427 remains in the first position even if the user stops or weakens the operating force that rotates the door D in the opening direction. The two inclined areas 455 are moved smoothly and automatically. When the cam pin 427 moves in the second inclined area 455 toward the second steep area 459 by the restoring force of the compression spring 425 and the weight of the door D, and reaches the second steep area 459, the door D is automatically Thus, the open position (O) is obtained (see FIGS. 19 and 20). FIG. 19 is a view corresponding to FIG. 18 when the cam pin 427 reaches the second steep slope region 459, and FIG. 20 shows the simultaneous point as viewed from the opposite side (the back side of the drawing in FIG. 19). It is a figure.

  On the other hand, when an operating force is applied to rotate the door D in the open position (O) in the closing direction, the first hinge element 401 rotates with respect to the second hinge element 403, and the shaft 421 is rotated along with this rotation. It rotates with respect to the second shaft cylinder 415. At this time, the cam pin 427 of the shaft 421 moves toward the inclination switching area 451 while sequentially following the second steep slope portion 459 and the second inclination area 455. The cam pin 427 of the shaft 421, in which the upward movement (movement toward the first shaft cylinder 407) is regulated in the second shaft cylinder 415, moves in the second tilt area 455 toward the tilt switching area 451, thereby The cam member 423 descends against the spring force of the compression spring 425. When the cam pin 427 reaches the inclination switching area 451 from the second inclination area 455, the compression amount of the compression spring 425 becomes maximum (see FIG. 18), and when the cam pin 427 passes (becomes) the inclination switching area 451. Thus, the cam pin 427 moves in a direction away from the inclination switching area 451 while following the first inclination area 453. At this time, since the cylindrical cam member 423 is pushed up by the elastic restoring force (restoring force) of the compression spring 425, the cam pin 427 does not move even if the user stops or weakens the operating force for rotating the door D in the closing direction. The first inclined area 453 is moved smoothly and automatically. When the cam pin 427 moves through the first inclined area 453 toward the first steep slope area 457 by the restoring force of the compression spring 425 and the weight of the door D, and reaches the first steep slope area 457, the door D is automatically Thus, the closed position (C) is obtained (see FIG. 16).

  In the hinge 400 of this embodiment, the shape of the cam groove 429 is set so that the door D can be rotated approximately 180 degrees. Specifically, as shown in FIG. 17, when the door D in the closed position (C) rotates 15 degrees in the opening direction, the cam pin 427 is moved from the first steep slope area 457 to the first slope area as shown in FIG. The condition that the door D reaches the 453, the condition that the cam pin 427 reaches the inclination switching area 451 when the door D in the closed position (C) rotates 120 degrees in the opening direction, and the door D that is in the closed position (C) opens. When the door D in the open position (O) rotates 15 degrees in the closing direction, the cam pin 427 is moved from the second steep slope area 459 to the second position. When the door D in the opening position (O) is rotated 75 degrees in the closing direction, the cam pin 427 reaches the inclination switching area 451, and the opening position (O) is reached. Door D has set conditions, the shape of the cam groove 429 so as to satisfy these conditions that reaches the first steep region 457 is rotated 180 degrees in the closing direction that. Further, in the present embodiment, the inclination angle of each inclined region (first inclined region 453, second inclined region 455) is set to an appropriate value so that an appropriate damper function is exhibited when performing the automatic closing operation and the automatic opening operation. Is set.

  In the door system X of this embodiment in which the components and mechanisms described above (the latch mechanism 100, the door catcher 200, the door damper 300, and the hinge 400) are attached to the door D, the user closes the door D to the closed position (C). When the operation force for moving the door D in either the closing direction or the opening direction is stopped or the operation force is weakened in the middle position between the opening position (O) and the opening position (O), Depending on the opening angle of the door D with respect to the opening S of the door frame W, the force of moving in either the closing direction or the opening direction is applied by the function of the hinge 400. Specifically, as shown in FIG. 3, when the operation force that moves the door D in either the closing direction or the opening direction is stopped or when the operation force is weakened, the door D moves toward the opening S. If the opening angle θ is less than 120 degrees, that is, if the cam pin 427 of the hinge 400 is tracing the first inclined region 453, the cam pin 427 is moved from the first inclined region 453 to the first steep region 453 by the restoring force of the compression spring 425. Moving toward the gradient region 457, the door D automatically enters the closed position (C). At this time, the door damper 300 can assist the closing operation of the door D. In the present embodiment, the door damper 300 starts to act when the opening angle θ of the door D with respect to the opening S reaches a predetermined angle (for example, 10 degrees). Specifically, when the opening angle θ of the door D with respect to the opening S reaches a predetermined angle (for example, 10 degrees), the guide groove 305 of the retractable arm 307 hits the shaft-like protrusion 309 of the seat 303 (FIG. 3). As the door D moves in the closing direction, the shaft-like protrusion 309 is guided to the back of the guide groove 305 (on the rotation center side of the retracting arm 307), and the entire retracting arm 307 is the main body. It rotates relative to the main body 305 while receiving a predetermined resistance force by a hydraulic damper mechanism built in the part 305. Accordingly, the door system X according to the present embodiment can prevent and suppress the generation of impact sound by slowly rotating the door D from a predetermined time point approaching the closed position (C) by the damper function of the door damper 300. In addition, the door D can be reliably pulled to the closed position (C). When the door D reaches the closed position (C), the latch claw 101 of the latch mechanism 100 and the latch hole 103 are engaged with each other to automatically hold the door D in the closed position (C). (See FIG. 2).

  On the other hand, when the operating force that moves the door D in either the closing direction or the opening direction is stopped or the operating force is weakened, the opening angle θ of the door D with respect to the opening S exceeds 120 degrees. If the cam pin 427 of the hinge 400 is tracing the second inclined region 455, the cam pin 427 moves from the second inclined region 455 toward the second steeply inclined region 459 by the restoring force of the compression spring 425. Thus, the door D automatically becomes the open position (O). When the door D reaches the open position (O), the above-described pin main body 229 of the door catcher 200 and the door catcher main body 201 are engaged, so that the door D is automatically held at the closed position (C). (See FIG. 3).

  Thus, in the door system X according to the present embodiment, the door D that is in the midway position that is neither the closed position (C) nor the open position (O) is placed in either the closed direction or the open direction by the action of the hinge 400. The door D that has reached the closed position (C) can be held by the latch mechanism 100, and the door D that has reached the closed position (C) 200 can hold the position. Therefore, according to the door system X according to the present embodiment, in a state where the door D is left in the midway position, a malfunction that may occur when a pressure difference occurs between the two spaces to be partitioned by the door D due to wind, that is, It is possible to prevent / suppress problems that the door D unexpectedly rotates in the closing direction or the opening direction and generates a large impact sound or harms a person near the door D. In particular, since the door system X according to the present embodiment includes the door damper 300, the automatic closing operation is performed appropriately and smoothly.

  Further, the hinge 400 applied to the door system X of the present embodiment employs a cam groove 429 having a substantially inverted V shape (mountain fold shape) with the inclination switching region 451 as the apex, and the cam pin 427 has a cam groove. When the first inclined region 453 of 429 moves toward the inclination switching region 451 and when the cam pin 427 moves through the second inclined region 455 of the cam groove 429 toward the inclination switching region 451, the second shaft cylinder 415 A compression spring 425 is pressed in the compression direction by a cylindrical cam member 423 that moves in a direction away from the first shaft cylinder 407. Accordingly, when the cam pin 427 passing through the first inclined area 453 toward the inclination switching area 451 exceeds the inclination switching area 451, or when the cam pin 427 passes from the second inclination area 455 beyond the inclination switching area 451 to the first. When the operation force by the user stops or decreases when passing through the inclined region 453, an automatic closing operation can be realized using the restoring force of the compression spring 425. Based on the same principle, when the cam pin 427 passing through the second inclined area 455 toward the inclination switching area 451 exceeds the inclination switching area 451, or when the cam pin 427 exceeds the inclination switching area 451 from the first inclination area 453. When the operation force by the user stops or decreases at the time of passing through the second inclined region 455, the automatic closing operation can be realized using the restoring force of the compression spring 425.

  Further, the hinge 400 according to the present embodiment traces the inclination angle of each inclined region (first inclined region 453, second inclined region 455) and the inclined region (first inclined region 453, second inclined region 455). By adjusting the frictional force generated between the cam groove 429 and the cam pin 427 to an appropriate value, a good damper function can be achieved when performing the automatic opening operation and the automatic closing operation. Compared with a mode in which a cassette type damper is attached to the structure, it is possible to avoid a complicated structure and an increase in cost, and it is excellent in practicality.

  In particular, in the present embodiment, a plurality of cam grooves 429 having the same shape (two in the illustrated example) are formed in the cylindrical cam member 423, and the cam pins 427 are guided in the respective cam grooves 429. It is possible to disperse the load acting on the cam pin 427, and to prevent / suppress the situation that the cam pin 427 on which an excessive load is acting during the opening operation or the closing operation is inadvertently biting into the cam groove 429. it can. Further, since the plurality of cam grooves 429 are formed at positions where the phases are different in the circumferential direction of the cylindrical cam member 423, the cylindrical cam is compared with the case where the plurality of cam grooves 429 are formed in the same phase. The load that the member 423 receives from the cam groove 429 can be effectively dispersed.

  In addition, this invention is not limited to embodiment mentioned above. For example, in the above-described embodiment, the position where the opening angle of the door D with respect to the opening S is approximately 180 degrees is set as the open position (O). A position where the opening angle of the door D with respect to the opening S is, for example, 90 degrees (a value lower than 90 degrees, for example, 85 degrees to avoid the knob N provided on the door D from hitting the wall) is an open position (O ) Can also be set.

  In this case, as shown in FIG. 21, if the attachment location of the door catcher main body 201 is changed to an appropriate location corresponding to the open position (O), the mechanisms and components described in the above-described embodiments can be used as they are. It is. Here, the switching point (thinking point) between the automatic closing operation and the automatic opening operation by the hinge 400 described above is a point at which the opening angle of the door D with respect to the opening S is 120 degrees. The door D can be held in the open position (O) by the door catcher 200 only when it is pushed to a position that reaches the open position (O), while between the closed position (C) and the open position (O). When the operation force by the user is stopped or lowered at the midway position, the door D is urged toward the closed position (C) by the action of the hinge 400 and the door damper 300, and the door D reaches the closed position (C). Can be held in that position by the latch mechanism 100. Therefore, it is possible to avoid the situation in which the door D continues to be left as it is in the midway position, and it is possible to prevent the problem that the door D is closed or opened unexpectedly.

  Further, by utilizing the fact that the thought point of the hinge can be appropriately changed by making the distances of the respective inclined regions different from each other, at an arbitrary opening angle of the door with respect to the opening (an angle corresponding to θ in FIG. 3). It is also possible to configure so that the automatic closing operation and the automatic opening operation are switched.

  In the above-described embodiment, the mode in which the door frame provided on the wall is the opening edge portion is illustrated, but the door frame is not provided on the wall, and the boundary portion with the opening portion of the wall is the edge portion of the opening portion. It may be.

  Further, in the above-described embodiment, the first hinge element is attached to the door and the second hinge element is attached to the opening edge (door frame). However, the first hinge element is attached to the opening edge. The second hinge element can also be used attached to the opening edge. Further, the first hinge element may function as a lower hinge element disposed below the second hinge element, and the second hinge element may function as an upper hinge element disposed above the first hinge element. Is possible.

  Moreover, the cam groove should just have an inclination switching area | region, a 1st inclination area | region, and a 2nd inclination area | region, and you may change the angle and distance of each inclination area | region suitably. Furthermore, the number and formation location of the cam grooves can be changed corresponding to the number and formation location of the cam pins.

  The opening that can be opened and closed by the door is not limited to the one that communicates with the indoor space and the outdoor space, but the opening that communicates with the living space in a common room, and the living space and the non-residential space (such as a close-in and toilet) It may be an opening that communicates.

  Further, as the latch mechanism and the door catcher, known ones other than those described above may be applied, and the door may be held in the closed position or the open position by manual operation. Furthermore, it is possible to apply a known door damper other than the configuration described above.

  In addition, the specific configuration of each part is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 100 ... Latch mechanism 200 ... Door catcher 300 ... Door damper 400 ... Hinge 401 ... 1st hinge element 403 ... 2nd hinge element 407 ... 1st cylinder 415 ... 2nd cylinder 421 ... Shaft 423 ... Cylindrical cam member 425 ... Compression Spring 427 ... Cam pin 429 ... Cam groove 451 ... Inclination switching area 453 ... First inclination area 455 ... Second inclination area D ... Door S ... Opening X ... Door system (C) ... Closed position (O) ... Open position

Claims (5)

A door system applicable to a door that can be opened and closed while rotating an indoor opening,
A latch mechanism for holding the door in a closed position;
A door catcher that holds the door in the open position;
The door is supported so as to be capable of rotating, and the door in the middle position between the opening position and the closing position is attached to either the opening direction or the closing direction at a predetermined opening angle with respect to the opening. A door system, characterized by having a hinge to be energized. The hinge is
A first hinge element having a first barrel;
A second hinge element having a second barrel;
One end side region is non-rotatably inserted into the first shaft tube and the other end side region is rotatably inserted into the second shaft tube so that these shaft tubes are coaxially arranged, and at least A shaft that is restricted from moving toward the first shaft cylinder;
A cylindrical cam member which is accommodated in the second shaft cylinder so as to be movable up and down in the axial direction in a non-rotatable state and has a cam groove engageable with a cam pin provided in the other end side region of the shaft;
A compression spring housed in the second shaft cylinder,
The cam groove is gradually inclined toward the inclination switching area from two different points in the circumferential direction of the cylindrical cam member, and an inclination switching area that is the area closest to the first shaft cylinder among the cam grooves. A substantially mountain-folded shape having a first inclined region and a second inclined region,
When the cam pin moves in the first inclined region of the cam groove toward the inclination switching region, and when the cam pin moves in the second inclined region of the cam groove toward the inclination switching region, the first The door system according to claim 1, wherein a compression spring is pressed in a compression direction by the cylindrical cam member that moves in a direction away from the first shaft cylinder in a biaxial cylinder. The door system according to claim 1, further comprising a door damper that assists the closing operation of the door. The door system according to claim 3, wherein the door damper pulls the door while decelerating in the closing direction when the door opening angle is smaller than a predetermined value. The door system according to any one of claims 1 to 4, wherein the door catcher automatically holds the door that has reached the open position.

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