JP2017008649A - Finger pinching prevention structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a finger pinching prevention structure that can be used for both of a sliding door and a swing door, has high safety, and eliminates a troublesome operation.SOLUTION: A restriction roller 24 supported by a supporting member is provided in a door end portion of a sliding door. A receiving surface is provided in a gate guide portion of a door frame. When the sliding door is opened, the restriction roller 24 moves to the direction of the receiving surface and becomes a protruding condition. When the sliding door is closed fast at the rate of a predetermined value or more while the restriction roller 24 is protruded, the holding power of going to hold the restriction roller 24 in a protruded state becomes larger than the force of the direction of going to make the restriction roller 24 retreat, and thereby a gap of finger pinching prevention is secured by the restriction roller 24. When the sliding door is closed slowly, the holding power is reduced and the finger pinching prevention function is released automatically.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a finger padding prevention structure for preventing injury by pinching fingers when a sliding door or a hinged door is closed.

  Conventionally, as this kind of finger padding prevention structure, as disclosed in Patent Document 1, for example, when a sliding door (sliding door shoji) is closed, finger padding is provided between the door tip and the door frame (fixed window frame). There has been a sliding door finger padding prevention device provided with a regulating member for forming a prevention gap. One end of the regulating member is supported inside the sliding door so as to be rotatable in the vertical direction, and can be switched between a storage posture and a protruding posture. The switching of the posture of the restricting member is performed by the user operating the operation unit. For example, when it is desired to prevent finger jamming, the user operates the operation unit to operate a dedicated drive mechanism and switches the restricting member to the protruding posture. When the user wants to release the finger padding prevention function, the user operates the operation unit to switch the restricting member to the storage posture.

  In addition, as disclosed in Patent Document 2, there has been a finger pinching prevention mechanism provided with an advancing / retracting operation body capable of advancing / retreating from the door tip of the sliding door toward the door frame. The forward / backward moving body is a member for forming a gap between the door tip and the door frame when the sliding door is closed, and can be switched between a storage posture and a protruding posture in the same manner as the restriction member. . This finger pinching prevention mechanism has a permanent magnet attached to the door frame, and when the sliding door is opened, the advancing / retreating operation means is pulled to the permanent magnet and takes a protruding posture, automatically switching to a state that prevents finger jamming and advancing. And the advancing / retreating operation body is held by the retreat stopper. When the user wants to release the finger padding prevention function, the user operates the release operation unit to switch the advance / retreat operating body to the storage position. Further, the handle for opening the sliding door is connected to the advancing / retracting operation body, and when the handle is operated in the direction to open the sliding door, the advancing / retreating operation means is pushed out into the protruding posture, and the assisting force in the opening direction is applied to the sliding door. Is disclosed.

JP 2007-132120 A JP 2012-225105 A

  However, in the case of the structure for preventing finger padding in Patent Document 1, the finger padding preventing function is not set unless the user operates the operation unit after the sliding door is opened. It is difficult.

  In addition, the structure for preventing finger padding in Patent Documents 1 and 2 is very troublesome for the user because it is necessary to operate the operation unit one by one in order to cancel the finger padding preventing function when it is desired to close the sliding door to the end. there were.

  Furthermore, the structure of patent documents 1 and 2 is a structure for both sliding door devices, and it is not considered to prevent finger padding when opening and closing the hinged door.

  The present invention has been made in view of the above-mentioned background art, and can provide a finger padding prevention structure that can be used for both sliding doors and hinged doors, is highly safe, and does not require troublesome operations. Objective.

  The present invention is installed in a sliding door device in which a sliding door is attached to a door frame provided on the wall side of an entrance and exit, and when the sliding door is closed, the front edge of the sliding door and the door frame facing the tip. A finger padding prevention structure for preventing a finger from being pinched between the front end of the door stop portion of the door, wherein one of the door tip portion and the door stop portion is a first portion and the other is a second portion. The first portion is provided with a regulating member having a predetermined size, and a support member having the regulating member attached to one end of an arm shape or the like, and the regulating member is provided with the second portion. Opposing receiving surfaces are provided, and the supporting member is attached to the first portion via a rotation shaft at the other end, and supports the regulating member so as to be movable forward and backward with respect to the receiving surface. When opened, the regulating member advances in the direction of the receiving surface. When the sliding door is closed with the regulating member projecting in the direction of the receiving surface, the receiving surface comes into contact with the regulating member, and the pressing force acting on the regulating member from the receiving surface Thus, a force in a direction for retracting the regulating member and a holding force for holding the regulating member in a protruding state are generated, and the holding force is greater than the predetermined value. Is larger than the force in the direction to be retracted, the restricting member is held in a state protruding in the direction of the receiving surface, and the finger is packed between the tip of the door tip portion and the tip of the door stop portion. When a prevention gap is ensured and the pressing force is smaller than the predetermined value, the holding force becomes smaller than the force in the direction to be retracted, and the support member rotates and the regulating member The receiving surface and Retracted in the direction of the pairs, the tip of the tip with the door stop portion of said door end portion is pinched fingers prevention structure made possible proximity.

  Further, the present invention is installed in a hinged door device in which a hinged door is attached to a door frame provided on the wall side of the entrance and exit, and when the hinged door is closed, the side surface of the door tip portion of the hinged door and the door corresponding thereto A finger padding prevention structure for preventing a finger from being pinched between the side surface of the door-end side frame portion of the frame, and a receiving member protruding from the tip of the door-end portion is provided on the side surface of the door-end portion. One of the receiving member and the door-end side frame portion is a first portion and the other is a second portion, and the first portion includes a regulating member of a predetermined size and one end such as an arm shape. A support member to which the restricting member is attached is provided at a portion, and a receiving surface is provided at the second portion so as to face the restricting member, and the support member is disposed through the rotation shaft at the other end. Attached to the first part, the restricting member is advanced and retracted in the direction of the receiving surface When the hinged door is supported and opened, the restricting member advances in the direction of the receiving surface and protrudes, and the hinged door is closed with the restricting member protruding in the direction of the receiving surface. The holding surface abuts against the regulating member, and the pressing force acting on the regulating member from the receiving surface holds the regulating member in a protruding state with a force in a direction to retract the regulating member. When the holding force to be generated is generated and the pressing force is larger than a predetermined value, the holding force is larger than the force in the direction to be retracted, and the regulating member protrudes in the direction of the receiving surface. If the gap between the side surface of the door tip portion and the side surface of the door tip side frame portion is secured, and the pressing force is smaller than the predetermined value, the holding Force to evacuate The support member rotates and the regulating member retracts in a direction opposite to the receiving surface, so that the side surface of the door tip portion and the side surface of the door tip side frame portion can approach each other. It is a finger padding prevention structure.

  The first portion is provided with a holding surface facing the receiving surface, and the holding surface abuts against a portion on the opposite side of the regulating member when the regulating member receives the pressing force from the receiving surface. The frictional force generated at the contact portion may be the holding force. Further, the rotation shaft of the support member is arranged in a direction parallel to the receiving surface, and is attached to the first portion via a rotation shaft biasing spring, and the rotation shaft biasing spring is connected to the restriction member The rotating shaft may be biased in a direction in which the rotating shaft is separated from the holding surface.

  In this case, the restricting member is formed of a restricting roller having a columnar center axis pivotally attached to the tip end portion of the support member, and the center axis of the restricting roller is parallel to the rotation axis of the support member. The holding surface is arranged in a direction, and the holding roller receives the pressing force from the receiving surface and comes into contact with a portion on the opposite side of the regulating roller, so that the holding portion by the friction force is applied to the contact portion. It is better to generate force.

  In addition, a trigger member is provided in the first portion, and the trigger member is configured to press the regulating member in a direction of separating the regulating member from the holding surface when the regulating member receives the pressing force from the receiving surface. Is arranged.

  Further, the trigger member is provided at its distal end with a trigger roller having a cylindrical central shaft pivotably attached thereto, the central axis of the trigger roller being in a direction parallel to the rotational axis of the support member. It is preferable that the trigger roller is in contact with the lower portion on the opposite side of the regulating member when the regulating member receives the pressing force from the receiving surface.

  The finger padding prevention structure of the present invention has a simple structure and high versatility, and can be applied not only to sliding doors but also to hinged doors. In addition, when the sliding door or the hinged door is opened, the restriction member automatically protrudes in the direction of the receiving surface, and the setting is made to prevent finger jamming, so that it is safe for infants and small children. In addition, when the sliding door or the hinged door is closed quickly and vigorously, the regulating member is held in a protruding state and the finger padding prevention function is not released, and when it is closed slowly, the regulating member automatically retracts to prevent finger padding. Since the structure is released, it is safe and there is no need to perform troublesome operations when it is desired to close the sliding door to the end.

It is a front view which shows the sliding door apparatus provided with the finger padding prevention apparatus which is 1st embodiment of the finger padding prevention structure of this invention. It is the top view (a) and front view (b) which show the main body and receiver of the finger padding prevention apparatus of 1st embodiment. It is a front view which shows the internal structure of the main body of FIG. It is a front view which shows a state when the sliding door of the finger padding prevention apparatus of 1st embodiment is closed. It is a front view which shows a state when the sliding door of the finger padding prevention apparatus of 1st embodiment is opened. It is a front view (a), (b) explaining operation | movement when the sliding door of the finger padding prevention apparatus of 1st embodiment is closed. It is a front view explaining operation | movement when the sliding door of the finger padding prevention apparatus of 1st embodiment is closed. It is a front view which shows the sliding door apparatus provided with the opening / closing handle apparatus which is 2nd embodiment of the finger padding prevention structure of this invention. It is the top view (a) and front view (b) which show the main body and receptacle of the opening / closing handle apparatus of 2nd embodiment. It is a front view which shows the internal structure of the main body of FIG. It is a front view (a), (b) explaining operation | movement when the opening / closing handle apparatus of 2nd embodiment is operated and a sliding door is opened. It is a front view which shows the sliding door apparatus provided with the finger filling prevention apparatus which is 3rd embodiment of the finger filling prevention structure of this invention. It is a top view explaining operation | movement when the hinged door of the finger padding prevention apparatus of 3rd embodiment is closed.

  Hereinafter, a finger padding prevention device that is a first embodiment of the finger padding prevention structure of the present invention will be described with reference to FIGS. The finger padding prevention device 10 of this embodiment is installed in a sliding door device 16 in which a sliding door 14 is attached to a door frame 12 provided on the wall side of an entrance, and when the sliding door 14 is closed, a door end portion of the sliding door 14 It is a device that prevents a finger from being pinched between the front end 14b of 14a and the front end 12b of the door contact portion 12a of the door frame 12 opposite to the front end 14b.

  The finger padding prevention device 10 includes a main body 18 and a receiver 20, and as shown in FIG. 1, the main body 18 is attached to an upper end portion of a door-end portion 14a (first portion), and the receiver 20 is a door. It is attached to the upper end of the contact portion 12a (second portion).

  As shown in FIGS. 2A and 2B, the main body 18 is fixed to the side surface of the door-end portion 14 a by an attachment portion 22 a provided on one side surface of the substantially rectangular housing 22. An opening that allows the inner regulating roller 24 (regulating member) to protrude and retract is provided on the side surface of the housing 22 on the door contact portion 12a side. The receiving member 20 is a plate-like member having a predetermined strength, and is fixed to the door-contacting surface of the door-contacting portion 12a by a mounting portion 20a provided on the back surface, and a flat receiving surface 20b provided on the surface is provided. Opposing to the regulating roller 24.

  As shown in FIG. 3, a columnar regulating roller 24 and an arm-shaped support member 26 to which the regulating roller 24 is attached are provided inside the main body 18. The regulation roller 24 is pivotally attached to the tip end portion of the support member 26 via the central shaft 27. The support member 26 is provided with a rotating shaft 26 a at the other end, and is attached to the housing 22 by being urged by the rotating shaft urging spring 28 in the direction of the receiving surface 20 b (leftward in FIG. 3). The central shaft 27 of the restriction roller 24 and the rotation shaft 26a of the support member 26 are substantially parallel, and the support member 26 is opposed to the receiving surface 20b of the receiving tool 20 substantially in parallel with the side peripheral surface of the restriction roller 24, 24 is supported so as to be movable forward and backward in the direction of the receiving surface 20b.

  A holding surface 30 that faces the receiving surface 20 b is provided inside the housing 22. The holding surface 30 is a curved surface portion indicated by hatching in FIGS. 3 to 7, and the lower region is curved inward corresponding to the side peripheral surface of the regulating roller 24, and the upper region continuous therefrom is It is gently bent outward and has a staircase shape. The regulating roller 24 is normally attached to the holding surface 30 of the housing 22 so as to be separated from and abutted by the rotating shaft biasing spring 28.

  A trigger spring 32 is provided inside the holding surface 30 as a biasing member for the trigger member. As the trigger spring 32, a coil spring is used here, a trigger roller 32 a is attached as a trigger member to the front end portion, and a rear end portion is held by a trigger spring holding portion 34. The trigger roller 32 a has a cylindrical center shaft 32 b pivotally attached to the tip end portion of the trigger spring 32, and the center shaft 32 b is arranged in a direction parallel to the rotation shaft 26 a of the support member 26. The trigger roller 32 a is urged in the direction of the receiving surface 20 b of the receiving tool 22 by the trigger spring 32, and an obliquely upper portion protrudes from the lower region of the holding surface 30. The trigger spring holding portion 34 is provided with an adjustment screw 34a for changing the position of the rear end portion of the trigger spring 32. By rotating the adjustment screw 34a, the trigger spring 32 strongly biases the trigger roller 32a. You can fine-tune the thickness.

  Next, the operation of the finger padding prevention device 10 will be described. In the state in which the sliding door 14 is closed, as shown in FIG. 4, the tip 14b of the door tip portion 14a and the tip 12b of the door contact portion 12a overlap in the lateral direction. In this state, the regulating roller 24 is a part of the side peripheral surface exposed from the opening of the housing 22 by the support member 26 rising and retracting in the direction opposite to the receiving surface 22b and being accommodated in the housing portion 22b of the housing 22. Is in contact with and locked to the receiving surface 20b.

  When the sliding door 14 is opened, the door tip portion 14a is separated from the door contact portion 12a, and the receiving surface 20b cannot lock the regulating roller 24. As shown in FIG. As a result, the regulation roller 24 advances in the direction of the receiving surface 20b and protrudes from the tip 12b of the door end portion 12a. The restriction roller 24 is supported by the trigger roller 32a at a slightly lower portion of the side peripheral surface, and the support member 26 is held almost horizontally. At this time, since the rotating shaft 26 a is biased by the rotating shaft biasing spring 28, the regulating roller 24 is separated from the holding surface 30.

  When the sliding door 14 is closed from the state of FIG. 5, first, as shown in FIG. 6A, the side peripheral surface portion 24 a of the regulating roller 24 protruding from the tip 12 b of the door tip portion 12 a is It hits the receiving surface 20b. Further, when the sliding door 14 moves after the collision, a pressing force that presses the regulating roller 24 from the receiving surface 20b acts, and the rotating shaft biasing spring 28 and the trigger spring 32 are compressed, and the support member 26 and the regulating roller 24 are moved. The side peripheral surface portion 24 b that moves in the direction opposite to the receiving surface 20 b and is opposite to the side peripheral surface portion 24 a of the regulating roller 24 attempts to contact the holding surface 30. At this time, the restriction roller 24 receives an upward force F1 from the trigger roller 32a as a reaction of the trigger spring 32 being compressed. As a result, the support member 26 rotates clockwise in the drawing, and the regulating roller 24 moves in the separating direction with respect to the holding surface 30.

  Here, when the pressing force from the receiving surface 20b is large, that is, when the sliding door 14 is closed at a high speed and the rotary shaft biasing spring 28 is greatly deformed, as shown in FIG. It moves against the rotating shaft biasing spring 28, and the side peripheral surface portion 24 b comes into contact with the holding surface 30. In this state, a force directed toward the receiving surface 20b acts on the regulating roller 24 in contact with the holding surface 30, and a frictional force is generated between the side peripheral surface portion 24b and the holding surface 30. Further, a frictional force is also generated between the receiving surface 20b and the side peripheral surface portion 24a of the regulating roller 24. A holding force F2 that opposes the upward force F1 acts on the regulating roller 24 between the receiving surface 20b and the holding surface 30. Here, the rotational resistance of the rotary shaft 26a and the central shafts 27 and 32b is sufficiently small and can be ignored.

  The upward force F1 acting on the regulating roller 24 closes the position of the trigger roller 32a that contacts the regulating roller 24 and the sliding door 14 before the regulating roller 24 contacts the receiving surface 20b and the support member 26 rotates upward. Determined by power. After the support member 26 is rotated upward, the pressing force depends on the contact state of the trigger roller 32a with the regulating roller 24, the horizontal pressing force when the sliding door 14 is closed, and the inclination angle of the support member 26. The upward force F1 as a component of pressure is dynamically determined.

  Further, the urging force of the trigger spring 32 on the restriction roller 24 determines the timing and change in force when the upward force F1 acting on the restriction roller 24 acts. When the trigger spring 32 is tightened to increase the urging force to the trigger roller 32a, the upward force F1 acts more strongly on the restriction roller 24 at an earlier stage when the sliding door 14 is closed, and the restriction roller 24 If the retraction of 24 is promoted and the biasing force of the trigger spring 32 is weakened, the upward force F1 acting on the restriction roller 24 is weakened, and the retraction of the restriction roller 24 is delayed.

  Hereinafter, a series of operations of each part when the sliding door 14 is closed is divided into a case where the sliding door 14 is closed at a speed higher than a predetermined speed considering the finger padding prevention function and a case where the sliding door 14 is closed at a low speed. Will be described in detail.

  When the sliding door 14 is closed faster than a predetermined speed, the operation of the finger padding prevention device 10 is such that the regulating roller 24 is retracted upward by the trigger roller 32a at the timing when the regulating roller 24 contacts the receiving surface 20b. The upward force F1 to be applied acts, but the sliding door 14 moves fast, and the regulating roller 24 comes into contact with the holding surface 30 before the regulating roller 24 retracts upward. As a result, the regulating roller 24 is held with a holding force F2 that is greater than or equal to the upward force F1. Therefore, the restriction roller 24 is held in a state of protruding in the direction of the receiving surface 20b, that is, in the state shown in FIG. 6B, and prevents finger padding between the tip 14b of the door tip portion 14a and the tip 12b of the door contact portion 12a. The gap is secured.

  On the other hand, when the sliding door 14 is closed at a slow speed equal to or less than a predetermined value, the regulating roller 24 is moved upward by the upward force F1 that retracts the regulating roller 24 upward at the timing when the regulating roller 24 contacts the receiving surface 20b. Rotate to retract. This is because the speed at which the sliding door 14 is closed is slow and the deformation of the rotating shaft biasing spring 28 is small, so that the regulating roller 24 is retracted upward by the trigger roller 32a before the regulating roller 24 abuts the holding surface 30. This is because the upward force F1 is applied, the upward component force due to the pressing force is applied, the support member 26 is rotated, and the regulating roller 24 is not sandwiched between the receiving surface 20b and the holding surface 30. Even if the sliding door 14 is closed and the regulating roller 24 comes into contact with both the receiving surface 20b and the holding surface 30, if the closing roller 14 is closed at a slow speed below a predetermined value, the holding force F2 is weak, so Due to the force F1, the regulating roller 24 rotates or slides on the surface of the receiving surface 20b and also slides on the surface of the holding surface 30, and the support member 26 rotates to retract the regulating roller 24.

  Therefore, when the sliding door 14 is closed at a slow speed equal to or less than a predetermined value, the support member 26 rotates and rises as shown in FIG. 7, and the regulating roller 24 retracts in the direction opposite to the receiving surface 20b. The tip 14b of the door tip portion 14a and the tip 12b of the door stop portion 12a can be brought close to each other. Thereafter, when the regulating roller 24 is accommodated in the housing portion 22b of the housing 22, the tip 14b of the door end portion 14a and the tip 12b of the door contact portion 12a intersect in the lateral direction, and the sliding door 14 is closed (FIG. 4). Return to the state shown in FIG. When the sliding door 14 is slowly closed, it is less likely to be injured even if a finger is pinched, and it can be said that it is safe even if the finger padding prevention function is automatically released.

  As described above, in the finger padding prevention device 10 that is the first embodiment of the finger padding prevention structure of the present invention, when the sliding door 14 is opened, the regulation roller 24 automatically protrudes in the direction of the receiving surface 20b. Since the setting of the finger padding prevention device 10 functions and prevents finger padding, it is safe for infants and small children. When the sliding door 14 is closed at a high speed equal to or higher than a predetermined value, the finger padding prevention function is not released. When the sliding door 14 is closed at a low speed equal to or lower than the predetermined value, the finger padding prevention function is automatically released. The structure is safe, and there is no need to perform a troublesome releasing operation when it is desired to close the sliding door 14. In addition, since the structure is simple and highly versatile, it can be installed at low cost for various types of existing sliding doors.

  Next, an opening / closing handle device, which is a second embodiment of the finger padding prevention structure of the present invention, will be described with reference to FIGS. Here, the same configurations as those in the above embodiment are described with the same reference numerals. The opening / closing handle device 36 of this embodiment is installed in the sliding door device 16 in which the sliding door 14 is attached to the door frame 12 provided on the wall side of the doorway, and when the user operates the handle in the direction to open the sliding door 14, the sliding door 14 When the sliding door 14 is closed, the tip 14b of the door end portion 14a of the sliding door 14 and the tip of the door contact portion 12a of the door frame 12 facing the door 14 can be applied. It also has a function of preventing a finger from being pinched between 12b.

  The opening / closing handle device 36 includes a main body 38 and a receiver 20, and as shown in FIG. 8, the main body 38 is attached to an intermediate position in the vertical direction of the door end portion 14a (first portion). Is attached to an intermediate position in the vertical direction of the door stop portion 12a (second portion).

  As shown in FIGS. 9A and 9B, the main body 38 is fixed to the side surface of the door end portion 14 a by an attachment portion 22 a provided on one side surface of the substantially rectangular housing 22. An opening that allows the inner regulating roller 24 (regulating member) to project and retract is provided on the side surface of the housing 22 that faces the door contact portion 12a. The receiving member 20 is a plate-like member having a predetermined strength, and is fixed to the door-contacting surface of the door-contacting portion 12a by a mounting portion 20a provided on the back surface, and a flat receiving surface 20b provided on the surface is provided. Opposing to the regulating roller 24. Furthermore, the upper surface of the housing 22 is provided with an opening through which a gripping portion 40a of the handle 40 described later projects.

  As shown in FIG. 10, a regulating roller 24, a support member 26, a rotary shaft biasing spring 28, a holding surface 30, and a trigger spring 32 are provided inside the main body 38. This is the same as the main body 18 of the prevention device 10. The main body 38 is further provided with a handle 40 that is operated when the user opens and closes the sliding door 14.

  The handle 40 includes a grip portion 40a having a predetermined length, an assist portion 40b extending from a base end portion of the grip portion 40a, and a rotating shaft 40c that rotatably supports the base end portion of the grip portion 40a. The rotation shaft 40 c is arranged in parallel with the rotation shaft 26 a of the support member 26 and is attached near the opening on the upper surface of the housing 22. The handle 40 receives a biasing force from a biasing means (not shown), and the gripping portion 40a is automatically arranged upward (initial state). The gripping portion 40a is received by the user's operation. It can incline in the opposite direction to 20b (operation state). The assist portion 40b is located in the housing portion 22b of the housing 22, and moves in the direction of the receiving surface 20b when the gripping portion 40a is tilted in the direction opposite to the receiving surface 20b.

  Next, the operation of the opening / closing handle device 36 will be described. FIG. 11A shows a state in which the sliding door 14 is closed, and the tip 14b of the door tip portion 14a and the tip 12b of the door contact portion 12a intersect each other in the lateral direction. The handle 40 is in an initial state. In this state, the regulating roller 24 rises on the side peripheral surface exposed from the opening of the housing 22, retracted in the direction opposite to the receiving surface 22 b when the support member 26 rises, and accommodated in the housing portion 22 b in the housing 22. The portion is in contact with and locked to the receiving surface 20b. Moreover, the assist part 40b is arrange | positioned in the position of the side peripheral surface of the control roller 24 on the opposite side to the receiving surface 20b.

  When the user tilts the grip portion 40a in the direction opposite to the receiving surface 20b to open the sliding door 14, the assist portion 40b moves in the direction of the receiving surface 20b as shown in FIG. It is pushed by the assist part 40b and proceeds in the direction of the receiving surface 20b. Then, when the receiving surface 20 b pushes back the regulating roller 24, an opening direction assist force is applied to the sliding door 14.

  When the sliding door 14 is opened, the door tip portion 14a is separated from the door contact portion 12a, the receiving surface 20b cannot lock the regulating roller 24, and the supporting member 26 is automatically tilted by the dead weight of the regulating roller 24, as shown in FIG. As shown in c), the restriction roller 24 advances in the direction of the receiving surface 20b and protrudes from the tip 12b of the door end portion 12a. When the user stops the operation of the handle 40 and releases the hand from the grip portion 40a, the handle 40 automatically returns from the operation state to the initial state.

  When the user moves the grip portion 40a in the direction of the receiving surface 20b in order to close the sliding door 14 from the state of FIG. 11 (c), the handle 40 is guided by the portion of the housing 22 and held at the initial position. Is done. The operation of each member other than the handle 40 is the same as that of the finger padding prevention device 10 described above. That is, when the sliding door 14 is closed at a fast speed equal to or higher than a predetermined value, the restriction roller 24 is held in a protruding state to prevent finger jamming, and when the sliding door 14 is closed at a speed equal to or lower than the predetermined value, 24 is automatically retracted, the finger padding prevention function is released, and the sliding door 14 can be closed.

  As described above, the opening / closing handle device 36, which is the second embodiment of the finger padding prevention structure of the present invention, can realize the operation of applying the assist force in the opening direction to the sliding door 14 with a simple structure. It is also possible to obtain the same effects as the finger padding prevention device 10 described above.

  Next, a finger filling preventing apparatus that is a third embodiment of the finger filling preventing structure of the present invention will be described with reference to FIGS. Here, the same configurations as those in the above embodiment are described with the same reference numerals. The finger padding prevention device 42 of this embodiment is installed in a hinged door device 48 in which a hinged door 46 is attached to a door frame 44 provided on the wall side of the doorway, and when the hinged door 46 is closed, a door tip portion of the hinged door 46 is provided. It is a device that prevents a finger from being pinched between the side surface 46b of 46a and the side surface 44b of the door-end side frame portion 44a of the door frame 44 corresponding thereto.

  The finger padding prevention device 42 includes a main body 18, a spacer 50, and a receiving member 52. The main body 18 and the spacer 50 are at the upper end portion of the door-end side frame portion 44a (first portion), and the receiving member 52 is the door-end. It is attached to the upper end of the portion 46a (second portion).

  The main body 18 is substantially the same as the main body 18 used in the first embodiment, and the attachment portion 22a is provided on the back surface of the housing 22 (the side surface opposite to the side surface on which the regulating roller 24 projects and sinks). And is attached to the side surface 44b of the door end side frame portion 44a via the spacer 50 which is a structure having a thickness d. Therefore, the regulating roller 24 can advance and retract in a direction substantially perpendicular to the side surface 44b.

  The receiving member 52 is a plate material or the like bent in a substantially L shape in plan view, and is provided with an attachment portion 52a at an end portion of one surface of the L shape, and on a side surface 46c opposite to the side surface 46b of the door end portion 46. It is attached. The other surface of the L shape is a receiving surface 52b, and the receiving surface 52b protrudes from the tip of the door end portion 46a and faces the side peripheral surface of the regulating roller 24.

  The operation of the finger padding prevention device 42 is substantially the same as the operation of the finger padding prevention device 10 described above, and the “receiving surface 20b of the receiving tool 20” in the description of the operation of the finger padding prevention device 10 is referred to as “the receiving member 52. It may be considered by replacing with the receiving surface 52b ". FIG. 13 shows a state in which the hinged door 46 is strongly closed and the regulating roller 24 is held in a state of protruding from the housing portion 22b of the housing 22, and the side surface 46b of the door tip portion 46a and the door tip side frame portion are shown. Between the side surface 44b of 44a, the clearance gap which prevents finger padding is ensured. The size of the gap can be easily adjusted by changing the thickness d of the spacer 50, for example.

  As described above, the finger padding prevention device 42, which is the third embodiment of the finger padding prevention structure of the present invention, has a structure suitable for use in the hinged door device 48, and is used for the sliding door device described above. The effect similar to that of the finger padding prevention device 10 can be obtained.

  The finger padding prevention structure of the present invention is not limited to the above embodiment. For example, in the first and second embodiments, the regulation roller 24 and the support member 26 are provided on the door end portion 14a of the sliding door 14, and the receiving surface 20b is provided on the door stop portion 12a of the door frame 12. Conversely, the regulating roller 24 and the support member 26 may be provided on the door stop portion 12a, and the receiving surface 20b may be provided on the door end portion 14a. Similarly, in the third embodiment, the regulating roller 24 and the support member 26 are provided on the door-end side frame portion 44a of the door frame 44, and the receiving surface 52b is provided on the door-end portion 46a of the hinged door 46. Conversely, the regulating roller 24 and the support member 26 may be provided on the door tip portion 46 a of the hinged door 46, and the receiving surface 52 b may be provided on the door tip side frame portion 44 a of the door frame 44.

  Also, the gist of the present invention is that the sliding door is closed, the protruding regulating member collides with the receiving surface, and the regulating member is sandwiched between the receiving member and the holding surface by the upward force F1 acting on the regulating member. The state of rotating in the retracting direction and the state of holding the restricting member between the receiving member and the holding surface are automatically determined by the closing speed of the sliding door or the like. Therefore, as long as this relationship can be realized, the restricting member is not limited to the restricting roller 24 of the above embodiment, and the shape and structure of the restricting member, the structure of the support member, the structure of the portion holding the restricting member, and the like are free. Can be changed. For example, the regulating member may have a shape other than a cylindrical roller, or the regulating member may be rotated by sliding without rotating. Furthermore, the shape of the holding surface corresponding to this can be changed. In addition, the configuration of the rotating shaft biasing spring 28, the trigger spring 32, the trigger roller 32a, and the trigger spring holding portion 34 can be changed. Instead of the trigger spring and the trigger roller, magnets are provided on the regulating member and the trigger member so that they repel each other. You may arrange so that. Further, these can be omitted as necessary.

DESCRIPTION OF SYMBOLS 10 Finger padding prevention apparatus 12 Door frame 12a Door contact part 12b Tip 14 Sliding door 14a Door tip part 14b Tip 16 Sliding door apparatus 18 Main body 20 Receptacle 20b Receiving surface 24 Restriction roller (regulation member)
26 Support member 26a Rotating shaft 28 Rotating shaft urging spring 30 Holding surface 32 Trigger spring 32a Trigger roller 36 Opening / closing handle device 38 having a finger filling prevention structure Main body 42 Finger filling prevention device 44 Door frame 44a Door end side frame portion 44b Side surface 46 Opening door 46a Door end portion 46b Side surface 48 Opening door device 52 Receiving member 52b Receiving surface

Claims (7)

Installed in a sliding door device in which a sliding door is attached to a door frame provided on the wall side of the doorway, and when the sliding door is closed, the tip of the door tip portion of the sliding door and the door contact portion of the door frame facing this In a finger padding prevention structure that prevents a finger from being pinched between the tip of the
One of the door end portion and the door contact portion is a first portion, the other is a second portion, the first portion has a regulating member of a predetermined size, and the regulating member is at one end. And a support surface that is opposite to the regulating member is provided on the second part, and the support member is attached to the first part via a rotation shaft at the other end. And supporting the regulating member so as to be movable forward and backward with respect to the receiving surface,
When the sliding door is opened, the restricting member proceeds in the direction of the receiving surface and protrudes,
When the sliding door is closed in a state where the regulating member protrudes in the direction of the receiving surface, the receiving surface comes into contact with the regulating member, and the regulating member is moved by the pressing force acting on the regulating member from the receiving surface. A force in a direction to be retracted and a holding force to hold the regulating member in a protruding state are generated,
When the pressing force is greater than a predetermined value, the holding force is greater than the force in the direction to be retracted, and the restricting member is held in a state protruding in the direction of the receiving surface, and the door When a clearance to prevent finger filling is secured between the tip of the tip portion and the tip of the door stop portion, and the pressing force is smaller than the predetermined value, the holding force is in the direction to retract. The force is smaller than the force, the support member is rotated, the regulating member is retracted in the direction opposite to the receiving surface, and the front end of the door tip portion and the front end of the door contact portion can be brought close to each other. A finger padding prevention structure. When the hinged door device is installed on a door frame provided on the wall side of the doorway and the hinged door is closed, when the hinged door is closed, the side surface of the door tip portion of the hinged door and the door edge side of the door frame corresponding thereto In a finger padding prevention structure that prevents a finger from being pinched between the side surface of the frame part,
A receiving member protruding from the tip of the door tip portion is provided on a side surface of the door tip portion, and one of the receiving member and the door side frame portion is a first portion and the other is a second portion. The first portion is provided with a regulating member having a predetermined size and a support member having the regulating member attached to one end thereof, and a receiving surface facing the regulating member is provided on the second portion. Provided, the support member is attached to the first portion via a rotation shaft at the other end, and supports the regulating member so as to be movable forward and backward in the direction of the receiving surface,
When the hinged door is opened, the restricting member is advanced in the direction of the receiving surface and protrudes,
When the hinged door is closed with the restricting member protruding in the direction of the receiving surface, the receiving surface comes into contact with the restricting member, and the pressing member acts on the restricting member from the receiving surface. A force in a direction to be retracted and a holding force to hold the regulating member in a protruding state are generated,
When the pressing force is greater than a predetermined value, the holding force is greater than the force in the direction to be retracted, and the restricting member is held in a state protruding in the direction of the receiving surface, and the door When a gap for preventing finger filling is secured between the side surface of the front portion and the side surface of the door side frame portion, and the pressing force is smaller than the predetermined value, the holding force tries to retract. It becomes smaller than the direction force, the support member rotates and the regulating member retracts in the direction opposite to the receiving surface, so that the side surface of the door tip portion and the side surface of the door tip side frame portion can be brought close to each other. A structure for preventing finger filling.   The first portion is provided with a holding surface facing the receiving surface, and the holding surface abuts against a portion on the opposite side of the regulating member when the regulating member receives the pressing force from the receiving surface. The finger padding prevention structure according to claim 1 or 2, wherein a frictional force generated at the contact portion becomes the holding force. The rotation shaft of the support member is arranged in a direction parallel to the receiving surface, and is attached to the first portion via a rotation shaft biasing spring,
The finger padding prevention structure according to claim 3, wherein the rotating shaft biasing spring biases the rotating shaft in a direction in which the regulating member is separated from the holding surface. The restricting member includes a restricting roller having a cylindrical center shaft pivotally attached to a distal end portion of the support member, and the center axis of the restricting roller is arranged in a direction parallel to the rotation axis of the support member. Has been
5. The holding surface generates the holding force due to a frictional force at the contact portion when the restriction roller receives the pressing force from the receiving surface and abuts against a portion on the opposite side of the restriction roller. The finger padding prevention structure described.   A trigger member is provided in the first portion, and the trigger member is arranged to press the regulating member in a direction separating the regulating member from the holding surface when the regulating member receives the pressing force from the receiving surface. The finger padding prevention structure according to claim 3.   The trigger member is provided with a trigger roller having a cylindrical central shaft rotatably attached to the tip of the trigger member, and the central axis of the trigger roller is arranged in a direction parallel to the rotation axis of the support member. 7. The finger padding prevention structure according to claim 6, wherein when the restricting member receives the pressing force from the receiving surface, the trigger roller comes into contact with a lower portion on the opposite side of the restricting member.

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