JP4593578B2 - Handle device for hinged door and hinged door having the same - Google Patents

Description

  The present invention relates to a handle device for unlocking a latch of a hinged door and a hinged door provided with the handle device.

  In general, this kind of hinged door is provided to open and close the opening of a building, and this hinged door is provided with a latch for engaging the latch receiver of the frame to keep the door panel closed. ing. In order to release the engagement between the latch and the latch receiver and open the hinged door, a knob (grip ball) and a lever handle are provided, and a means for releasing the latch by rotating the handle while holding them. When using a push-pull handle and moving the door panel to the back side to open the handle, push the handle to the back (push operation), or move it to the near side (operator side) and open the handle. Means are known for releasing the latch by performing an operation (pull operation) for pulling the front side.

  However, in the case of a knob or a lever handle, for example, a gripping operation is required for releasing the latch. On the other hand, in the case of a push-pull handle, it is necessary to put a finger on the handle during the pull operation that pulls forward, both of which are for handicapped people with impaired motor function and elderly people with weak grip strength. Was hard to use.

As means for solving this problem, conventionally, for example, a so-called “push-pull lock” disclosed in Patent Document 1 has been proposed. In this proposal, both the push side and pull side operation handles are provided so as to face obliquely upward. Therefore, the pulling operation to pull the handle when opening the door panel by moving it to the front side can be done by tilting the operation handle to the front side. Even if it is etc., there exists an effect that a hinged door is easy to open.
Japanese Patent Laid-Open No. 11-50707

  However, in the push-pull handle of Patent Document 1, when the door panel is moved to the back side and opened, there is a difference that the direction of the operation handle has changed from the lateral direction to the diagonally upper direction, but the same as the conventional push-pull handle. Furthermore, the latch is released by a push operation of pushing the handle in the same direction (back side) as the door panel opening direction. Therefore, when the handlebar is about to get drunk or when an elderly person who is not good at weight transfer performs a push operation, the latch is unexpectedly released and the hinged door opens, and there is a risk of falling over when the hinged door opens. Etc.

  SUMMARY OF THE INVENTION The present invention has been made in view of such a point, and an object of the present invention is to improve the handle device of the hinged door so as to avoid the latch door being inadvertently released by the handle portion and opening the hinged door. It is intended to make it easier to open the hinged door even for people with disabilities and elderly people with weak grip.

  In order to achieve the above object, according to the present invention, the handle portion of the hinged door is devised so that the handle portion is opened in a direction perpendicular to the opening / closing movement direction of the door panel.

  Specifically, according to the first aspect of the present invention, the handle of the hinged door having a latch that engages with the latch receiver of the frame and holds the door panel in the closed position when protruding from the front end surface of the door in the closed position of the door panel. As a device, the latch is switched between a locked state in which the latch protrudes from the door front end surface and a lock release state in which the latch can protrude and retract with respect to the door front end surface.

In addition, an operating force is applied along the operation direction which is provided on the front side and the back side of the door panel so as to be swingable around a shaft portion extending in parallel with the door panel and substantially parallel to the door panel. A pair of handle portions that rotate around the shaft portion and move from the latch non-release position to the latch release position by the action of the operation force on the operation force action surface. And a latch switching mechanism for switching the latch to the unlocked state when the handle portion is moved to the latch release position.

According to said structure, when opening a hinged door, it is a direction substantially parallel to a door panel to the operation force action surface of one or both of the handle | steering-wheel part each provided in the surface side and the back surface side of the door panel first. An operation force is applied along the operation direction, and the handle portion is rotated around the shaft portion and moved until the latch release position is reached. As the handle portion moves, the latch is switched to the unlocked state by the latch switching mechanism, and then the handle portion is pulled toward the front side while the operating force is applied to the operating force acting surface in the unlocked state of the latch. Alternatively, the door panel may be opened and operated by pushing it back.

As described above, unless the operation force is applied to the operation force acting surface of the handle portion in the operation direction substantially parallel to the door panel and the handle portion is moved until reaching the latch release position, the latch is in the unlocked state. Therefore, it is possible to prevent an accident such as a push-type handle being unexpectedly released from being latched to open the hinged door and falling over when the hinged door is opened.

  In addition, when the handle is operated with the operating force acting surface and moved to the latch release position, the latch is unlocked, so that the hinged door can be opened and closed without the need for a gripping operation or finger-hanging operation as in the past. Even if the person has a disability in their motor function or an elderly person with weak grip, the hinged door can be opened easily.

  According to a second aspect of the present invention, in the handle device for a hinged door according to the first aspect, at least an operation force acting surface of the handle portion is subjected to a non-slip treatment.

  In this way, the operation of the handle part for releasing the latch and the operation of pulling the door panel toward the front by the handle part or the operation of pushing it to the back side can be reliably performed without slipping.

  According to a third aspect of the present invention, in the handle device for the hinged door according to the first or second aspect, the handle portion is provided with an operation portion having an operation force acting surface to which an operation force is applied in a downward direction, and swingable on the door panel. And an eaves part whose outer end moves downward and the inner end moves upward when the operation part moves downward.

  In addition, the latch switching mechanism is provided on the door panel so as to be swingable, and when the inner end of the collar portion moves upward, one end moves upward and the other end moves downward. A protrusion provided on the other end of the trigger portion for fixing the latch in a locked state. When the handle portion is moved to the latch release position, the protrusion is lowered by the movement of the trigger portion. And the latch is configured to be switched to the unlocked state.

In the present invention, when the hinged door is opened, if a downward operating force is applied to the operating force acting surface of the handle portion, the handle portion rotates around the shaft portion, and the latch release position is moved downward from the latch non-release position. Move to. As the handle portion moves downward, the collar portion of the latch switching mechanism rotates and the outer end moves downward, while the inner end moves upward. The trigger part is also rotated by the rotation of the collar part, one end thereof is moved upward, the other end is moved downward, and the protrusion provided at the other end of the trigger part is moved downward. Thus, the latch is switched to an unlocked state in which the latch can be immersed in the door panel. Therefore, this invention can produce the same effect as that of the invention of claim 1.

  The invention of claim 4 relates to a hinged door, and the hinged door includes the handle device for the hinged door of any one of claims 1 to 3. In this invention, the same effect as that of the invention of claim 1 can be obtained.

  According to a fifth aspect of the present invention, the hinged door of the fourth aspect further comprises a biasing means for biasing the door panel in the opening direction so as to move at least to the half-open position where the latch is released. .

  In this invention, since the door panel is urged in the opening direction of the hinged door by the urging means, the opening operation of the hinged door can be performed more easily.

As described above, according to the first, third, or fourth aspect of the invention, the door handle device for the hinged door is swingable about a shaft portion extending in parallel with the door panel and substantially parallel to the door panel. a handle portion having an operation along the direction operation force is force application surface applied is, movable in each operation direction on the surface side and back side of the door panel, the handle is moved to the unlatched position Occasionally, by switching the latch to the unlocked state, the handle part is inadvertently released from the latch and the hinged door is prevented from opening, while the handicapped person with impaired motor function or an elderly person with weak grip strength Even if it is a person etc., it can make it easy to open a hinged door.

  According to the second aspect of the present invention, since the anti-slip treatment is applied to at least the operating force acting surface of the handle portion, the latch release operation by the handle portion and the pulling operation or pushing operation on the door panel can be reliably performed without slipping. it can.

  According to the invention of claim 5, by providing the urging means for urging the door panel in the opening direction so as to move at least to the half-open position where the latch is released, the opening operation of the hinged door can be performed more easily. it can.

  Hereinafter, the best embodiment of the present invention will be described in detail with reference to the drawings. The following description of the preferred embodiments is merely exemplary in nature and is in no way intended to limit the invention, its application, or its application.

[Embodiment 1]
(Folding door)
FIG. 11 shows the hinged door D according to Embodiment 1 of the present invention, and this hinged door D is a boundary between the first space R1 (front side in FIG. 11) and the second space R2, as shown in FIGS. The frame 1 and a door panel 10 disposed inside the frame 1 are provided. The frame 1 includes left and right vertical frame portions 1a and 1b on the support side and the rotation side, and a horizontal frame portion 1c disposed horizontally between the upper ends of both the vertical frame portions 1a and 1b. In the door panel 10, the end corresponding to the right vertical frame 1a in FIG. 11 is the support side end 10a (hanging end), and the end corresponding to the left vertical frame 1b in FIG. The support side end 10a is set to the moving side end 10b (tip side end), and the support side end 10a is provided with a plurality of upper and lower hinges 11 and 11 (supports) on the vertical frame 1a on the right side of FIG. Via a shaft). Thus, the door panel 10 is supported by the frame 1 so as to be opened and closed by hinges 11, 11, with the hinges 11, 11 serving as fulcrums, the door panel 10 in the direction in which the rotation side end portion 10 b faces the first space R 1 side. The hinged door D opens when it is pivoted to move, while the hinged door D closes when pivoted so that the pivoting end 10b moves in the direction toward the second space R2. Yes. For convenience of explanation, the first space R1 side of the frame 1 and the door panel 10 is the front side, and the second space R2 side is the back side.

  A door stop 3 for positioning and regulating the door panel 10 at the closed position is attached to the inner surface of the frame 1, and this door stop is a vertical door contact 3 a attached to the inner surfaces of the vertical frame portions 1 a and 1 b. , 3b and 3c per side door attached to the inner surface (lower surface) of the horizontal frame portion 1c. That is, as shown in FIG. 9 and FIG. 10 representatively in the case of 3c per side door, a concave strip 2 is formed on each inner surface of the vertical frame portions 1a, 1b and the horizontal frame portion 1c. For example, a door stop 3 made of a hollow resin or the like is fitted and fixed (the door stop 3 may be other than a hollow resin or the like, or may be a plate attached and fixed to the inner surface of the frame 1. ) When the door panel 10 is in the closed position, the back surface of the door panel 10 is brought into contact with the door stop 3 to restrict the door panel 10 to the closed position.

  Although not shown, on the inner surface of the vertical frame portion 1b on the rotation side corresponding to the rotation-side end portion 10b of the door panel 10, there is a predetermined height near the front side (first space R1 side) of the vertical door 3b. A latch receiver is attached at this position. This latch receiver is, for example, a well-known one that covers a recessed portion formed on the inner surface of the vertical frame portion 1b and has an opening, and by allowing a latch 26 described later on the door panel 10 side to enter the opening of the latch receiver, The latch 26 is engaged with the latch receiver to hold the door panel 10 in the closed position.

(Handle device)
A handle device 14 according to an embodiment of the present invention is provided at the rotation side end portion 10b of the door panel 10. As shown in FIGS. 1 and 2, the handle device 14 includes a lock portion 15 that is embedded and attached to the rotation-side end portion 10 b of the door panel 10, and 1 provided on the front surface side and the back surface side of the door panel 10. It is composed of a pair of handle portions 41, 41.

  That is, as shown in FIGS. 3 to 6, a rectangular accommodating portion 5 is formed in a concave shape on the door front end surface of the rotation side end portion 10 b of the door panel 10, and the lock portion 15 is fitted in the recessed portion 5. Are attached and fixed. The lock portion 15 includes a rectangular box-shaped metal case 16 which is thinner than the thickness of the door panel 10, and the door tip of the rotation-side end portion 10 b of the side wall facing the width direction of the door panel 10 in the case 16. Mounting flange portions 16 a and 16 a are integrally formed on the front end side wall located on the surface side so that the front end side wall extends upward and downward from the case 16, and the case 16 includes the housing portion 5 of the door panel 10. In the state accommodated in the inside, it attaches to the door panel 10 by fixing the attachment flange parts 16a and 16a to the door front end surface by screwing or the like.

  In addition, a latch in / out hole 18 is opened at a position corresponding to the latch receiver when the door panel 10 is in the closed position at a substantially central position in the vertical direction of the front end side wall of the case 16. Inside the case 16, a partition wall 19 is integrally formed so as to surround the latch in / out hole 18 at the mounting flange portion 16 a side (door front end surface side) and bent in a substantially U shape at the upper and lower central portions. ing. The upper wall portion of the partition wall 19 is located slightly above the upper end portion of the latch retracting hole 18, and the lower wall portion is located slightly below the lower end portion of the latch retracting hole 18. 16 is located in the remaining portion including the latch housing chamber 20 located in the substantially vertical center portion on the mounting flange portion 16a side (door front end surface side) and the rear side opposite to the mounting flange portion 16a. The latch switching mechanism accommodation chamber 21 is partitioned. Further, the lower wall portion of the partition wall 19 is provided with a protrusion insertion hole 23 through which a protrusion 54 described later is inserted near the attachment flange portion 16a, and the attachment flange portion 16a and both of the front and back side wall portions of the case 16. Near the lower part on the opposite side, rectangular hook insertion holes 24 and 24 (only the side wall part on the back side is shown in FIG. 3) through which a later-described hook 42 is inserted are formed through.

  A latch 26 is accommodated in the latch accommodating chamber 20 so as to be slidably and rotatably supported so as to be inserted into and retracted from the front end surface of the door through the latch retracting hole 18. When the panel 10 is protruded at the closed position, the door panel 10 is held in the closed position by entering and engaging with the opening of the latch receiver.

  As shown in FIGS. 4 to 6, the latch 26 has a substantially rhombus shape (horizontal cross-sectional shape is a substantially rhombus shape) when viewed from above and below, and extends along the vertical surface at the tip side. A front end side taper portion 27 composed of a front side surface 27a and a back side surface 27b is formed, and a base end side taper portion 28 composed of a front side surface 28a and a back side surface 28b extending along the vertical surface is formed on the base end side portion, respectively. . The front side surface 27a of the distal end side tapered portion 27 and the back side surface 28b of the proximal end side tapered portion 28 extend substantially parallel to each other, and the back side surface 27b of the distal end side tapered portion 27 and the front side surface 28a of the proximal end side tapered portion 28 are It extends substantially parallel to each other. A concave groove 29 having a rectangular cross-section formed by cutting out the back side surface 28b of the base end side tapered portion 28 is formed in the substantially vertical center portion of the base end side portion of the latch 26. The bottom surface 29a of the groove 29 is It is formed in the circular arc surface curved in circular arc shape by planar view seen from the up-down direction. That is, one end of the concave groove 29 is at the boundary position between the back side surface 28 b of the proximal end side tapered portion 28 and the back side surface 27 b of the distal end side tapered portion 27, and the other end is on the front side surface 28 a of the proximal end side tapered portion 28. The groove 29 is located at each intermediate portion, and the gap 29 is cut out from the one end side toward the other end side so that the groove depth gradually increases, so that the bottom surface 29a becomes an arc surface. Yes.

  On the upper and lower end portions of the latch 26, there are projected rotary shaft convex portions 31, 31 extending in the vertical direction on the front side surface 28a of the base end side taper portion 28 in the vicinity of the front side surface 27a of the front end side taper portion 27, respectively. Has been. The upper and lower rotary shaft convex portions 31, 31 respectively extend to the vicinity of the upper and lower wall portions of the partition wall 19, and the height between the tips of the rotary shaft convex portions 31 is the upper and lower end portions of the latch retracting hole 18. Accordingly, the latch 26 is supported by the case 16 so as to be rotatable around the upper and lower rotary shaft convex portions 31, 31. When the projections 31 protrude from the upper and lower sides, both the rotary shaft projections 31 are locked to the upper and lower cases 16 of the latch in / out hole 18 so that the latch 26 is prevented from coming out of the latch in / out hole 18. Yes.

  A locking recess 32 is provided at the lower end of the latch 26 corresponding to the position where the other end of the arc surface of the bottom surface 29a of the groove 29 intersects the upper and lower surfaces 28a of the base end side tapered portion 28. Is formed. The locking recess 32 is rectangular in cross section so that the base end portion of the latch 26 is parallel to the front side surface 27a of the front end side taper portion 27 (therefore, the back side surface 28b of the base end side taper portion 28). As shown in FIG. 4, the latch 26 has the front side surface 27 a of the distal end side taper portion 27 (the rear side surface 28 b of the proximal end side taper portion 28) parallel to the front and rear surfaces of the door panel 10. In a state of protruding from the front end surface of the door, it corresponds to the protrusion insertion hole 23 of the lower wall portion of the partition wall 19 in the vertical direction, and a protrusion portion 54 described later moves upward to move the protrusion insertion hole 23 of the partition wall 19. The latch 26 is engaged with the partition wall 19 of the case 16 so that it cannot slide and cannot rotate. That is, the latch 26 protrudes from the door front end surface when engaged with the protrusion 54 and cannot enter / exit, and when the engagement with the protrusion 54 is released, the latch 26 can protrude relative to the door front end surface. It will be switched to the unlocked state.

  Further, the latch accommodating chamber 20 is provided with a latch pushing member 34 for pushing the latch 26 in the protruding direction. The latch pushing member 34 includes a push rod 35 that is slidably inserted into and supported by a substantially central portion of the side wall portion of the partition wall 19 located on the base end side (the support side end portion 10a side of the door panel 10) of the latch 26. I have. The extrusion rod 35 extends in the horizontal direction in parallel with the door panel 10, and a large-diameter portion 35 a having a larger diameter than other portions is formed at the distal end portion located on the mounting flange portion 16 a side (door distal end surface side). An extrusion spring 36 comprising a coil spring positioned around the extrusion rod 35 is compressed between the large-diameter portion 35a and the side wall portion of the partition wall 19, and the extrusion rod 35 is compressed by the extrusion spring 36. The large-diameter portion 35a is urged toward the mounting flange portion 16a, and the large-diameter portion 35a presses the bottom surface 29a (arc surface) of the concave groove 29 in the latch 26, so that the latch 26 is always attached in the protruding direction. I'm trying to help.

  As shown in FIG. 1, plate-like seats 40, 40 are attached and fixed to the front and back sides of the door panel 10 corresponding to the case 16 in the door panel 10, respectively. The handle portion 41 is supported so as to be swingable. That is, the pair of front and back handle portions 41, 41 are provided on the front side and the back side of the door panel 10, respectively.

  Each handle portion 41 has a collar portion 42 and an operation portion 46. The eaves portion 42 is a straight rod that extends horizontally in the front and back direction substantially orthogonal to the front and back surfaces of the door panel 10, and the inner end 42 a penetrates the seat portion 40 and the door panel 10 and then the eaves on the front and back side walls of the case 16. It is located in the case 16 through the part insertion hole 24, and the inner ends 42 a, 42 a of the collar parts 42, 42 of both handle parts 41, 41 are aligned in the width direction of the door panel 10 in the case 16. In close proximity.

  The outer end 42b of each collar part 42 protrudes to the front and back outer sides of the door panel 10, and the operation part 46 is integrally fixed to the outer edge 42b of each collar part 42. The intermediate portion of the collar portion 42 is rotatably supported by a shaft portion 43 that extends in the horizontal direction parallel to the front and back surfaces of the door panel 10 with respect to the seat portion 40.

  On the other hand, each operation unit 46 is a round bar having a circular cross section extending in parallel with the front and back surfaces of the door panel 10. The operation unit 46 is positioned near the lower portion of the operation unit 46 on an extension line in the length direction of the flange 42. A connecting portion 46a facing the door panel 10 is integrally projected so as to be positioned, and a tip end portion of the connecting portion 46a is integrally fixed to the outer end 42b of the flange portion 42.

  And each said handle | steering-wheel part 41 is movable to the downward direction which is an operation direction substantially perpendicular | vertical to the moving direction of the door panel 10 because the operation part 46 is being fixed to the outer side end 42b of the collar part 42. Is provided. In addition, an operation force action is applied to the upper surface of the operation portion 46 of each handle portion 41 so that when the handle portion 41 is operated to open the hinged door D, a downward opening operation force is applied to the handle portion 41 as an operation direction. A surface 47 is formed. As shown in FIG. 1, in a normal state where the entire outer peripheral surface of the operation portion 46 including the operation force acting surface 47 is subjected to anti-slip treatment and no opening operation force acts on the operation force acting surface 47, When the connecting portion 46a and the collar portion 42 of the operation portion 46 are in the horizontal state and the handle portion 41 moves upward to be positioned at the non-latching position, while a downward opening operation force is applied to the operation force acting surface 47 As shown in FIG. 2, due to the action, the connecting portion 46a and the collar portion 42 of the operation portion 46 are inclined obliquely downward, and the handle portion 41 is released from the latch non-release position along the downward direction (operation direction). Move to the position. Further, since the connecting portion 46a protrudes at a position closer to the lower portion of the operating portion 46, at the latch release position of the handle portion 41, the operating force acting surface 47 on the upper surface of the operating portion 46 and the distal end portion of the connecting portion 46a (杆The height of the portion 42 is substantially the same as the height of the portion 42 connected to the outer end 42b.

  The anti-slip treatment for the operation unit 46 is performed by attaching a sheet having a non-slip function made of synthetic resin, rubber, etc., applying a non-slip paint, embossing, a material having an anti-slip function made of synthetic resin, rubber, or the like. It can be performed by means such as partial embedding. Further, a material such as a synthetic resin or rubber having a large friction may be used for the operation unit 46 itself. The anti-slip process need not be performed on the entire surface of the operation unit 46, and may be performed only on the operation force acting surface 47.

  Further, a latch switching mechanism 50 is provided for switching the latch 26 to the unlocked state when the handle portions 41 are moved to the latch release position. As shown in FIG. 3, the latch switching mechanism 50 includes a trigger portion 51 that is swingably provided in the latch switching mechanism housing chamber 21 of the case 16 in the lock portion 15 of the door panel 10. The trigger portion 51 is, for example, a thick plate-like member that extends substantially horizontally along the front and back surfaces of the door panel 10 in the latch switching mechanism accommodating chamber 21, and is horizontally aligned in the front and back side walls on the front and back side walls of the case 16. It is supported so as to be able to swing through an extending support shaft 52. The trigger portion 51 has a lever side end portion 51a on the side opposite to the mounting flange portion 16a of the case 16 and an arm side end portion 51b on the mounting flange portion 16a side. The lever side end portion 51a is integrally formed with a substantially L-shaped engaging portion 53 that extends upward and is bent so as to extend in the horizontal direction toward the opposite side of the mounting flange portion 16a. The horizontal portion of the joint portion 53 is in contact with the upper surface of the inner end 42a of each of the collar portions 42, and the handle portion 41 on either the front side or the back side is opened to move downward from the latch non-release position to the latch release position. When the inner end 42a of the collar portion 42 moves upward, the engagement portion 53 is pushed up by the inner end 42a, and the trigger portion 51 rotates about the support shaft 52 in the counterclockwise direction in FIG. The lever side end 51a moves upward, and the arm side end 51b moves downward.

  Further, a protruding portion 54 is integrally projected on the upper surface of the arm side end portion 51b of the trigger portion 51. The protrusions 54 are provided in the protrusion insertion holes 23 in the lower wall portion of the partition wall 19 so as to correspond vertically. Further, a trigger spring 55 made of a coil spring that biases the trigger portion 51 in the clockwise direction in FIG. 3 is mounted between the lower surface of the arm side end portion 51b of the trigger portion 51 and the inner bottom surface of the case 16. Normally, the trigger portion 51 is rotated clockwise in FIG. 3 by the urging force of the trigger spring 55 and the arm side end portion 51 b is raised, and the projection portion 54 passes through the projection portion insertion hole 23 and is separated from the partition wall 19. The latch 26 is locked into a locked state (projecting position) by entering the latch housing chamber 20 and engaging with the locking recess 32 on the lower surface of the latch 26, while operating the upper surface of the operating portion 46 in the handle portion 41. When the force acting surface 47 is pushed downward to move the handle portion 41 to the latch release position, the outer end 42b of the collar portion 42 moves downward and the inner end 42a moves upward, and the trigger portion 1 rotates counterclockwise in FIG. 3 against the urging force of the trigger spring 55, and the projection 54 moves downward to come out of the locking recess 32 on the lower surface of the latch 26 and engage with each other. By releasing the latch 26, the latch 26 is rotatable and slidable, and can be switched to an unlocked state in which it can be immersed in the door panel 10.

  A length L1 from the support shaft 52 to a position where the engagement portion 53 contacts the inner end 42a of each flange 42 at the lever side end portion 51a of the trigger portion 51, and from the support shaft 52 to the arm side end portion 51b. When the length L2 up to the protrusion 54 is compared, the former length L1 is set to be smaller than the latter length L2 (L1 <L2), and the inner end 42a of the collar portion 42 is slightly moved. The protrusion 54 at the arm side end 51b of the trigger portion 51 is largely moved so that the latch 26 can be switched to the unlocked state.

(Biasing device)
As shown in FIG. 11 again, in the door stop 3 on the inner side of the frame 1, the door panel 10 is placed at least on the latch 26 in the side door contact 3c at a position corresponding to the rotation side end 10b of the door panel 10 in the closed position. There is provided a biasing device 60 (biasing means) for biasing in the opening direction so as to move to the half-open position where the is released.

  That is, in the present invention, the handle device 14 does not perform the operation of “grabbing and moving the door panel 10 in the opening direction” as in the prior art, so the biasing device 60 is provided. By urging the door panel 10 in the opening direction, the opening operation of the hinged door D is made to work effectively.

  As shown in FIGS. 7 to 10, the urging device 60 includes a box-shaped case 61, and a pair of front and back leg portions 61 a and 61 a are spaced apart from each other on the upper surface (base end side) of the case 61. The case 61 is positioned and fixed below the side door 3c by sandwiching and fixing the side door 3c between the leg portions 61a, 61a. The case 61 is attached to the side door 3c by a fixing means such as a screw, an adhesive, or a double-sided adhesive tape.

  In the case 61, a circular opening 62 is formed through the front side wall portion facing the back side of the door panel 10 when in the closed position. In addition, a bottomed cylindrical piston member 63 is supported inside the case 61 so as to be slidable so that a tip end portion (bottom portion) thereof protrudes and retracts from the opening 62, and the inner bottom portion of the piston member 63 and the case 61. Between the back side wall portion, an extruding spring 64 made of a coil spring that urges the piston member 63 in the protruding direction is partially accommodated in the piston member 63 and is compressed, as shown in FIG. In addition, when the door panel 10 is restricted to the door stop 3 and is in the closed position, the door panel 10 pushes the piston member 63 to immerse it against the urging force of the push spring 64, and in this state, the push spring 64 extends. Force (restoring force) pushes the door panel 10 to the front side via the piston member 63 to urge it in the opening direction of the opening door D, and moves at least the door panel 10 to the half-open position where the latch 26 is released. It has become way.

(Opening door opening operation)
Next, the opening operation | movement of the hinged door D of the said embodiment is demonstrated. In the closed position of the hinged door D, as shown in FIG. 1, each handle portion 41 is in a non-latching position, and the connecting portion 46a of the operating portion 46 and the connecting portion 46a are integrally fixed. The unit 42 is in a horizontal state. Further, as shown in FIG. 3, the engaging portion 53 of the trigger portion 51 is in contact with the upper surface of the inner end 42 a in the case 16 of the collar portion 42, and this trigger portion 51 is caused by the biasing force of the trigger spring 55. The arm side end 51b is raised, and the protrusion 54 protruding from the arm side end 51b enters the latch accommodating chamber 20 in the partition wall 19 through the protrusion insertion hole 23 of the case 16, and is locked. 15 is engaged with a locking recess 32 on the lower surface of the latch 26. As a result, as shown in FIG. 4, the latch 26 is locked and fixed in a locked state protruding from the front end surface of the door panel 10, and the latch 26 is engaged with the door stop (the opening) of the frame 1. The door panel 10 is held in the closed position.

  Further, since the door panel 10 is in the closed position, as shown in FIG. 9, the piston member 63 of the biasing device 60 is pushed by the door panel 10 and is immersed against the biasing force of the push spring 64. The door panel 10 is biased in the opening direction by the extension force (restoring force) of the push spring 64.

  Then, when opening the hinged door D from such a state, the handle portion 41 on either the front side or the back side is opened. That is, the operating force acting surface 47 on which the upper surface of the operating portion 46 is subjected to the anti-slip process is pushed downward to move the handle portion 41 from the latch non-release position to the latch release position. FIG. 2 illustrates a state in which the handle portion 41 on the front side (first space R1 side) is opened and moved to the latch release position, and the same applies to the case where the handle portion 41 on the back side is opened. At that time, the operating force acting surface 47 on which the upper surface of the operating portion 46 has been subjected to the anti-slip process is substantially the same height as the tip of the connecting portion 46a of the operating portion 46 (the connecting portion to the outer end 42b of the flange portion 42). Become. As the handle portion 41 moves to the latch release position, the collar portion 42 of the handle portion 41 rotates around the shaft portion 43, and the outer end 42b moves downward while the inner end 42a rises. Then, the engaging portion 53 is pushed up by being pushed by the ascending inner end 42a. As the engaging portion 53 rises, the trigger side 51 rises the lever side end 51a while the arm side end 51b falls. Thus, it rotates counterclockwise in FIG. 3 against the biasing force of the trigger spring 55. As the arm-side end 51b moves downward, the projection 54 also moves downward, and comes out of the locking recess 32 on the lower surface of the latch 26 (the projection 54 is below the projection insertion hole 23 of the case 16). Will not come out). As a result, the engagement of the protrusion 54 with the latch 26 is released, and the latch 26 is rotatable and slidable, and is switched to the unlocked state in which it can be inserted into the door panel 10.

  When the latch 26 is thus unlocked, the door panel 10 is urged in the opening direction by the extension force (restoring force) of the push spring 64 of the urging device 60, so as shown in FIG. The piston member 63 protrudes from the case 61, and the piston member 63 pushes the rotation side end portion 10b of the door panel 10 away from the side door contact 3c (door contact 3), and the door panel 10 rotates in the opening direction. To do. As the door panel 10 moves, as shown in FIG. 5, the front side surface 27a of the tip side taper portion 27 of the latch 26 is pushed by the latch receiver (side edge of the opening) on the frame 1 side, 26 rotates in the clockwise direction in the drawing around the rotating shaft convex portion 31 while sliding the large-diameter portion 35a of the push rod 35 on the bottom surface 29a (arc surface) of the concave groove 29. Further, when the door panel 10 is opened and the front side surface 27a of the tip side taper portion 27 of the latch 26 is further pressed by the latch receiver, as shown in FIG. 6, it is latched by the component force of the pressing force to the front side surface 27a. 26 enters the latch housing chamber 20 against the urging force of the push spring 36 of the latch push member 34 and does not protrude from the latch retract hole 18. At least the urging force applied to the door panel 10 by the urging device 60 continues to this state, and thus the door panel 10 reaches the half-open position.

  After the half-opening, when the biasing device 60 biases the door panel 10 beyond the half-opening position in the opening direction, the biasing force of the biasing device 60 continues. The panel 10 is further pushed in the opening direction, and the hinged door D is opened. On the other hand, when the urging device 60 urges the door panel 10 in the opening direction to the half-open position, the operation portion 46 of the handle portion 41 is continuously pushed down to hold the handle portion 41 in the latch release position. The operation panel 46 is pulled forward (in the case of the illustrated example) on the handle portion 41 on the front side, and pushed to the front side (back side) on the handle portion 41 on the back side. It can be further opened and opened.

  When the door panel 10 is further opened from the half-open state as described above and the latch 26 is removed from the latch receiver and cannot be pressed from the latch receiver, the latch 26 is pushed by the latch push-out member 34 and is again latched in and out. It protrudes from the hole 18. When the hand is released from the handle portion 41 in this state, the collar portion 42 and the trigger portion 51 are rotated in the opposite direction to the opening operation by the urging force of the trigger spring 55, and the arm side end portion 51b of the trigger portion 51 is rotated. The protrusion 54 rises and engages with the locking recess 32 of the latch 26, and the latch 26 is again locked.

  Therefore, in this embodiment, when the hinged door D is opened, the door panel 10 is moved to one or both of the operating force acting surfaces 47 of the handle portions 41, 41 provided on the front surface side and the back surface side of the door panel 10, respectively. The latch 26 is switched to the unlocked state by applying an opening operating force substantially perpendicular to the direction and moving the handle portion 41 along the downward direction until reaching the latch release position. In the unlocked state, the handle door 41 is pulled to the front side or pushed to the back side to open the hinged door D, so that the latch is unexpectedly released like the push-type handle, the hinged door opens, and falls with the opening of the hinged door. Accidents such as doing can be prevented.

  Further, when the handle portion 41 is operated with the operating force acting surface 47 and moved to the latch release position, the latch 26 is released from the locked state, so that it is possible to open the door without requiring a grip operation or a finger operation as in the prior art. D can be opened and closed, and the opening operation of the hinged door D can be easily performed even by a handicapped person with a disability in the hand movement function or an elderly person with weak grip.

  Further, since the entire operation portion 46 including the operation force acting surface 47 of the handle portion 41 is subjected to anti-slip processing, the operation of the handle portion 41 for releasing the latch 26 and the door panel 10 with the handle portion 41 are performed. The operation of pulling the front side or the operation of pushing the back side can be reliably performed without slipping.

  Moreover, since the urging device 60 that urges the door panel 10 in the opening direction so as to move at least to the half-open position where the latch 26 is released is provided in the hinged door D, the opening operation of the hinged door D is easier. Can be done.

[Embodiment 2]
12 and 13 show a second embodiment of the present invention (in the following embodiments, the same parts as those in FIGS. 1 to 11 are denoted by the same reference numerals and detailed description thereof is omitted), and the handle portion. The configuration of 41 is changed.

  That is, in this embodiment, the operation portion 46 of the handle portion 41 is not a round bar having a circular cross section as in the first embodiment, but has a cross-sectional shape in which the upper operation force acting surface 47 is a flat surface. . Further, the operation portion 46 is not provided with the connecting portion 46a described in the first embodiment.

  Further, unlike the straight rod-shaped portion as in the first embodiment, the collar portion 42 of the handle portion 41 bends in a substantially square shape so as to be convex downward at the intermediate portion supported by the shaft portion 43, The operation unit 46 is attached to the outer end 42b. Then, as shown in FIG. 12, in the latch non-release position, the inner half of the collar portion 42 is horizontal and the outer end 42b is higher than the inner end 42a, and the upper surface of the operation unit 46 integral with the outer end 42b. While the operation force acting surface 47 of the heel is inclined so as to face downward toward the door panel 10, the outer half of the collar portion 42 is horizontal and is more than the outer end 42 b at the latch release position, as shown in FIG. 13. Also, the inner end 42a is raised so that the operating force acting surface 47 on the upper surface of the operating portion 46 is horizontal. Other configurations are the same as those of the first embodiment.

  Therefore, this embodiment can achieve the same effects as those of the first embodiment. In particular, in the case of the embodiment, since the operating force acting surface 47 on the upper surface of the operating portion 46 of the handle portion 41 is flat, the area of the operating force acting surface 47 is widened, and the anti-slip function works more effectively. Is obtained.

[Embodiment 3]
14-17 shows Embodiment 3 of this invention, and the attachment structure with respect to the door stop 3 of the urging | biasing apparatus 60 is changed. In this embodiment, unlike the first embodiment, a part of the side door 3c is partially cut away to form a cutout portion 4.

  The case 61 of the urging device 60 does not have the leg portions 61a and 61a as in the first embodiment. In the case 61, the piston member 63 is located in the cutout portion 4 at the same height position as the side door 3c. It is externally fitted so as to be positioned, and the bag is also fixedly mounted in an embedded state.

  Other configurations are the same as those of the first embodiment. Therefore, this embodiment can achieve the same effects as those of the first embodiment.

[Embodiment 4]
18 and 19 show Embodiment 4 of the present invention, in which the mounting position of the urging device 60 is changed. In this embodiment, unlike the first or third embodiment, the case 61 of the urging device 60 is embedded near the back side of the door front end surface of the support side end portion 10a of the door panel 10, and a piston is placed in the case 61. The member 63 is energized by the push spring 64 and accommodated and supported so as to protrude from the front end surface of the door, and the piston member 63 pushes the inner surface of the vertical frame portion 1a on the support side of the frame 1 to thereby react. Thus, the door panel 10 is urged in the opening direction. Other configurations are the same as those of the first embodiment. Therefore, this embodiment can provide the same effects as the first embodiment. In FIG. 18, 7 is a column for attaching the vertical frame portion 1a.

  In this embodiment, the case 61 of the urging device 60 is placed on the door front end surface of the support side end portion 10 a of the door panel 10, and the piston member 63 in the case 61 is moved by the urging force of the push spring 64 to the vertical frame portion 1 a. On the contrary, the case 61 of the urging device 60 is embedded in the inner surface of the vertical frame portion 1 a, and the piston member 63 in the case 61 is opened by the urging force of the spring 64. You may step in so that the door front end surface of the support side edge part 10a of the panel 10 may be pushed.

[Embodiment 5]
FIG. 20 shows a fifth embodiment of the present invention in which the biasing device 60 is changed. In this embodiment, the urging device 60 is composed of a pair of magnets, a frame side magnet 66 and a door panel side magnet 67. As in the first embodiment, the frame-side magnet 66 is fixedly attached to the side door 3c at the position corresponding to the rotation end side portion 10b of the door panel 10 in the closed position (the door contact 3 on the lower surface of the side frame portion 1c). Has been. On the other hand, the door panel side magnet 67 is mounted and fixed on the back surface of the door panel 10 such that when the door panel 10 is in the closed position, the height and right and left positions are opposed to the frame side magnet 66 in the front and back direction. Has been. Further, the magnetic poles on the side surfaces facing each other when the door panel 10 is in the closed position in both the magnets 66 and 67 are provided to the same magnetic pole. The door panel 10 is urged in the opening direction so as to move at least to the half-open position where the latch 26 is released.

  Other configurations are the same as those of the first embodiment. Therefore, this embodiment can achieve the same effects as those of the first embodiment.

  The frame side magnet 66 may be attached to the vertical door contacts 3a and 3b instead of the horizontal door contact 3c, and the position of the door panel side magnet 67 is also changed to correspond to the position of the frame side magnet 66. . Moreover, each magnet 66 and 67 may be embedded in the inside of the door stop 3 and the door panel 10, and may stick a sheet-like magnet. When a sheet having a pattern or color similar to the surface makeup of the door panel 10 or the like is attached to the surfaces of the magnets 66 and 67, the magnet can be made inconspicuous, and the design can be improved.

[Embodiment 6]
21 and 22 show a sixth embodiment of the present invention, in which the urging device 60 is further modified. In this embodiment, the urging device 60 includes an extrusion member 70 supported on the inner surface of the vertical frame portion 1b corresponding to the rotation side end portion 10b of the door panel 10 so that the lower end portion thereof is swingable by a horizontal shaft 69. The weight 71 is attached to the upper end portion of the pushing member 70 and urges the pushing member 70 in a counterclockwise direction so as to tilt the pushing member 70. The door panel 10 is urged in the opening direction by pushing the door panel 10 from the back side at the upper end which is the tilting end.

  In the figure, reference numeral 72 denotes a lower fixing pin protruding from the inner surface of the vertical frame portion 1b on the lower side of the door panel 10 (front side) of the pushing member 70, and abuts against the pushing member 70 to be tilted to regulate its tilting range. Reference numeral 73 denotes an upper fixing pin protruding from the inner surface of the vertical frame portion 1b on the opposite side (back side) of the pushing member 70 to the door panel 10 so that the pushing member 70 does not fall on the opposite side to the door panel 10 side. It is something to regulate. Other configurations are the same as those of the first embodiment.

  In the case of this embodiment, in the closed state of the hinged door D, as shown in FIG. 21, the pushing member 70 is pushed by the door panel 10 and is in an upright position. When the latch 26 is released, as shown in FIG. 22, the pushing member 70 urged by the weight of the weight 71 falls while pushing the door panel 10, and is pushed by the pushing member 70 to be moved to the door. Panel 10 opens. Therefore, in this embodiment, the same effect as that of the first embodiment can be obtained.

[Other Embodiments]
The present invention is not limited to the above embodiments. For example, in each of the embodiments described above, the collar portion 42 of each handle portion 41 can be swung along a vertical plane (vertical surface), and the operating force acting surface 47 is pushed downward to move the handle portion 41 downward. The latch 26 is released by lowering it to the latch release position (horizontal position). On the contrary, the operation force action surface 47 is provided on the lower surface of the operation part 46, and the operation force action surface 47 is on the upper side. The latch 26 may be released by pushing and raising the handle portion 41 to an upward latch release position (horizontal position). Further, the collar portion 42 of the handle portion 41 can be swung along a plane other than the vertical direction, for example, a horizontal plane or an oblique plane, and an operation force acting surface 47 is provided in one of the directions along the plane, The latch 26 may be released by pushing the action surface 47 and moving the handle portion 41 along the plane to the latch release position. In short, the handle part 41 can be moved in the operation direction (substantially parallel to the door panel 10) substantially perpendicular to the moving direction of the door panel 10 on the front side and the back side of the door panel 10, respectively. An operating force acting surface 47 to which an operating force in the operating direction is applied is provided on the handle portion 41, and the handle portion 41 is latched from the latch non-release position along the operating direction by the action of the operating force on the operating force acting surface 47. It is only necessary to move to the release position.

  Further, in the first to third embodiments, the urging device 60 is provided on the horizontal frame portion 1c (3c per horizontal door) of the frame 1. You may provide in the corresponding vertical frame part 1b (3b per vertical door). In addition, the case 61 of the urging device 60 may not be attached to the door stop 3 but may be embedded in a portion facing the door stop 3 on the back surface of the door panel 10, and the same effect as described above can be obtained.

  Further, each of the above embodiments is an example of the door panel 10 having the support side end portion 10a on the right side and the rotation side end portion 10b on the left side as viewed from the first space R1, but the present invention, Needless to say, the present invention can be applied to a door panel having the support side end portion 10a on the left side and the rotation side end portion 10b on the right side as viewed from the first space R1.

  INDUSTRIAL APPLICABILITY The present invention is extremely useful in that it can easily open a hinged door even for a disabled person having a motor function of a hand or an elderly person having a weak grip, and has high industrial applicability.

FIG. 1 is a side view showing a handle device for a hinged door according to Embodiment 1 of the present invention as viewed from the door front end side of the rotation side end portion of the door panel. FIG. 2 is a view corresponding to FIG. 1 showing a state in which the handle portion is opened to the latch release position. FIG. 3 is a vertical sectional view showing a latch switching mechanism of the handle device. FIG. 4 is a horizontal sectional view showing a locked state of the latch. FIG. 5 is a view corresponding to FIG. 4 showing a state where the latch is unlocked and rotated. FIG. 6 is a view corresponding to FIG. 4 illustrating a state in which the latch is unlocked and the door is immersed in the door panel. FIG. 7 is a front view of the urging device. 8 is a view taken in the direction of arrow VIII in FIG. 9 is a cross-sectional view taken along the line IX-IX in FIG. 7 showing a state in which the piston member of the biasing device is immersed in the case. FIG. 10 is a view corresponding to FIG. 9 showing a state where the piston member protrudes from the case. FIG. 11: is a front view shown in the state which opened the hinged door which concerns on Embodiment 1 of this invention. FIG. 12 is a view corresponding to FIG. 1 illustrating the handle device for the hinged door according to the second embodiment. FIG. 13 is a view corresponding to FIG. 2 illustrating the handle device for the hinged door according to the second embodiment. FIG. 14 is a view corresponding to FIG. FIG. 15 is a view corresponding to FIG. FIG. 16 is a view corresponding to FIG. 9 showing the third embodiment. FIG. 17 is a view corresponding to FIG. FIG. 18 is a horizontal sectional view showing the urging device according to the fourth embodiment. FIG. 19 is an enlarged horizontal cross-sectional view showing a main part of the fourth embodiment. FIG. 20 is a view corresponding to FIG. 11 with the urging device according to the fifth embodiment attached. FIG. 21 is a side view showing the urging device according to the sixth embodiment when viewed from the inside of the frame. FIG. 22 is a view corresponding to FIG. 21 showing a state in which the door panel is opened.

D door 1 frame 3 door 10 door panel 14 handle device 16 case 26 latch 41 handle part 42 collar part 42a inner end 42b outer end 46 operation part 47 operation force acting surface 50 latch switching mechanism 51 trigger part 51a lever side end part 51b Arm side end portion 54 Projection portion 60 Biasing device (biasing means)

Claims (5)

A handle device for a hinged door provided with a latch that engages with a latch receiver of the frame when protruding from the door front end surface at the door panel closed position and holds the door panel in the closed position,
The latch is to be switched between a locked state that protrudes and is held from the door front end surface and an unlocked state that allows the door front end surface to appear and disappear,
An operation that is provided on the front side and the back side of the door panel so as to be swingable about a shaft portion extending in parallel with the door panel , and in which an operating force is applied along an operation direction that is substantially parallel to the door panel. A pair of handle portions that have a force acting surface and rotate around the shaft portion by the action of the operating force on the operating force acting surface and move from the latch non-release position to the latch release position;
A handle device for a hinged door, comprising: a latch switching mechanism that switches the latch to an unlocked state when each handle portion moves to a latch release position. The handle device for a hinged door according to claim 1,
A handle device for a hinged door, wherein at least an operation force acting surface of the handle portion is subjected to a non-slip treatment. In the handle device of the hinged door according to claim 1 or 2,
The handle portion has an operating force acting surface to which an operating force is applied in the downward direction,
While being provided on the door panel so as to be swingable, the outer end is moved downward and the inner end is moved upward when the operation portion is moved downward,
The latch switching mechanism is provided on the door panel so as to be swingable, and when the inner end of the collar portion moves upward, one end moves upward and the other end moves downward,
Provided at the other end of the trigger portion, and a protrusion for fixing the latch in a locked state. When the handle portion is moved to the latch release position, the protrusion is moved downward by the movement of the trigger portion. The handle device for a hinged door is configured so that the latch can be switched to an unlocked state by moving to the position.   A hinged door comprising the handle device for a hinged door according to any one of claims 1 to 3. In the hinged door of claim 4,
A hinged door comprising biasing means for biasing the door panel in the opening direction so as to move at least to a half-open position where the latch is released.

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