JP2009097323A - Slide-type opening / closing body prevention device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a slide-type opening / closing body pinching prevention device which controls sliding of an opening / closing body by mechanical control and has high durability.
An anti-pinch device includes a fixed-side lock member 10 held by a sash frame 2 and a movable-side lock member 20 held by a shoji 3. The fixed-side lock member 10 is connected to an operation inclined surface 11 and a lock. The movable-side lock member 20 has a load bearing surface 12 and a movable lever 20 that rotates in contact with the operating inclined surface 11 and a hook that is attached to the operating lever 21 and rotates according to the rotational speed of the operating lever 21. A contact surface 23 that contacts the member 22 and the load bearing surface 13 for locking is provided, and a stop lever 24 that engages with the hook member 22 and rotates is provided.
[Selection] Figure 7

Description

  The present invention relates to opening / closing of a sliding door or window (opening / closing body) such as an entrance sliding door or a sliding sash, and more particularly to a pinching prevention device for a sliding opening / closing body that prevents pinching of a finger or the like when closing.

  Traditionally, sliding sliding doors and shojis (opening / closing bodies) have been used in the opening of houses, and the opening / closing body overlaps with the sliding sash, or the frame (fixed frame) side of the opening / closing body There was a case where a finger etc. were pinched between. In recent years, the ratio of the size of this opening / closing body increasing to improve the landscape and the paired glass with emphasis on crime prevention and heat insulation has increased, and the weight of the opening / closing body has increased accordingly. For this reason, there is a tendency that the danger when a finger or the like is pinched is increasing.

Various techniques have been developed in order to prevent a finger or the like from being caught. For example, Patent Document 1 discloses a technique in which two magnets are attached to the fixed frame side and the opening / closing body side, respectively, and the repulsive force of the magnet is used. Yes. In the apparatus of Patent Document 1, a rod-like member having a magnet attached to the tip between a fixed frame and an opening / closing body is installed on the fixed frame side, and another magnet is attached on the opening / closing body side. By slowly closing, the two magnets repel and the rod-shaped member can be retracted so that the opening / closing body is closed, and when the opening / closing body is closed quickly, the magnet cannot repel and the opening / closing body collides with the rod-shaped member and stops the opening / closing body (locking) It is a mechanism.
JP-A-8-82157

  However, the magnet used in Patent Document 1 is weak against collisions and has a low durability because a load is directly applied to the fixed shaft. And the magnetic flux density of magnetic bodies, such as a magnet, has a big variation, Therefore It is very difficult to adjust the timing of the said operation | movement, ie, how fast to stop the opening-closing body.

  The present invention has been made in view of the above problems, and it is an object of the present invention to provide a slide type opening / closing body pinching prevention device that controls sliding of the opening / closing body by mechanical control and has high durability.

  In order to solve the above-described problem, the invention according to claim 1 is a fixed-side lock member held on at least one of an opening / closing body or a fixing frame on which the opening / closing body slides, and of the opening / closing body or the fixing frame. A sliding-type opening / closing body sandwiching prevention device composed of a movable side locking member held at least on the other side, wherein the fixed side locking member includes an operating inclined surface and a locking load bearing surface, The movable side lock member includes an operation link member that rotates in contact with the operation inclined surface, a hook member that is attached to the operation link member and swings according to a rotation speed of the operation link member, It is a structure provided with the stop link member which is provided with the contact part which contacts the load-bearing surface for a lock | rock, and engages with the said hook member and rotates.

  According to a second aspect of the present invention, a first elastic member that urges the operating link member in a direction in contact with the operating inclined surface, and a direction in which the stop link member contacts the load bearing surface for locking. And a second elastic member that urges the lens.

  According to a third aspect of the present invention, the center of gravity of the hook member is placed at a position away from the rotation center of the operating link member with respect to a position where the hook member is attached to the operating link member. .

  According to a fourth aspect of the present invention, the stop link member has a long hole for moving relative to the operating link member in the sliding direction of the opening / closing body when contacting the load bearing surface for locking. It is the composition provided.

  The invention according to claim 5 includes a buffer member that contacts the stop link member, and the buffer member includes a relief portion that absorbs compression deformation at the time of contact.

  According to a sixth aspect of the present invention, the operating inclined surface has a biasing member and an adjusting member, and the angle of the inclined surface can be adjusted by operating the adjusting member.

  According to a seventh aspect of the present invention, the adjusting member includes an engaging portion and a bulging portion that is located above the engaging portion and is larger than the diameter of the engaging portion when assembled to the fixed lock member. It is the composition provided with.

  The invention according to claim 8 is a configuration in which the operating link member includes a hook allowance adjusting member that pushes the hook member in a rotating direction.

  In the first aspect of the present invention, the fixed-side lock member and the movable-side lock member are all mechanical parts, and the pinching prevention (locking) of the sliding type opening / closing body is changed according to the rotation speed of the operating link member. This can be determined by the swing of the hook member to be moved. In addition, since the magnet is not provided, it is possible to solve the problems of magnet cracking due to collision (durability) and the difficulty of adjusting the lock timing due to variations in the magnetic flux density of the magnetic material.

  In the second aspect of the invention, the first elastic member that urges the operating link member in the direction in contact with the operating inclined surface and the stop link member in the direction in contact with the load bearing surface for locking are urged. Due to the configuration including the second elastic member, when the opening / closing body is opened, the operating link member and the stop link member are held so as to return to the initial position. Therefore, even when the opening / closing body is repeatedly opened and closed, a function of preventing pinching is always obtained.

  In the invention according to claim 3, since the center of gravity of the hook member is located away from the center of rotation of the operating link member with respect to the position where the hook member is attached to the operating link member, By movement, the hook member can be swung. By swinging the hook member, the lock load-bearing surface of the fixed side lock member and the contact portion of the stop link member of the movable side lock member come into contact with each other, thereby preventing pinching (locking).

  In the invention according to claim 4, since the stop link member has a long hole extending in the sliding direction of the opening / closing body, the contact between the load bearing surface for locking of the fixed side lock member and the stop link member of the movable side lock member is provided. Even if the parts come into contact with each other, the stop link member moves in the sliding direction with respect to the operation link member, so that the load applied to the fixed shaft can be reduced, and the durability is improved.

  Further, in the invention according to claim 5, since the buffer member that contacts the stop link member is provided, the load bearing surface for locking of the fixed side lock member and the contact portion of the stop link member of the movable side lock member come into contact to stop. When the link member moves in the sliding direction of the opening / closing body, the buffer member can absorb the load of the opening / closing body. In addition, the buffer member has a relief portion composed of a space such as a through hole and a concave shape that absorbs the compression deformation at the time of contact, so that more deformation and load absorption than the case without the relief portion can be achieved. It becomes possible.

  In the invention according to claim 6, the operating inclined surface of the fixed-side lock member has an urging member and an adjusting member, and the angle of the inclined surface can be adjusted by the adjusting member. Even if the speed is the same, the rotation speed of the operation link member rotating in contact with the operation inclined surface can be changed by adjusting the inclination angle of the operation inclined surface, and the hook member attached to the operation link member can be changed. You can adjust the swing. Since the swinging movement of the hook member can be adjusted by the operating inclined surface, it is possible to easily adjust the timing for preventing pinching in accordance with the closing speed of the opening / closing body.

  According to the seventh aspect of the present invention, since the adjustment member includes a bulge portion positioned above the engagement portion in a state assembled to the fixed-side lock member, the user can operate the inclined surface for operating the fixed-side lock member. It is possible to prevent the adjustment member from being dropped and lost when adjusting the angle.

  In the invention according to claim 8, since the operating link member includes a hook allowance adjusting member that pushes the hook member in the rotating direction, the hook member and the stop link member are hooked so as to be reliably hooked. You can adjust the bill.

DESCRIPTION OF EMBODIMENTS Embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 1 shows a pinching prevention device 1 according to an embodiment of the present invention, and a fixed-side lock member 10 fixed to a sash frame 2 (fixed frame). And a movable side lock member 20 fixed to the shoji 3 (opening / closing body).

  FIG. 2 is a configuration diagram of the pinching prevention device 1, and the fixed-side lock member 10 includes an operation inclined surface 11 and a lock load bearing surface 12 provided side by side with the operation inclined surface 11.

  The movable-side lock member 20 has an L-shaped operation lever 21 (operation link member) that rotates in contact with the operation inclined surface 11, and a hook that is attached to the operation lever 21 so as to be able to rotate (swing). It comprises a member 22 and a stop lever 24 (stop link member) that rotates with a contact surface 23 (contact portion) that contacts the load bearing surface 12 for locking.

  The operation lever 21 and the stop lever 24 are rotatably provided on a fixed shaft 27 (rotation center) of the case 26. The case 26 is fixed to the shoji 3 with bolts 25.

  The actuating lever 21 has one end attached to the case 26 and the other end attached to the actuating lever 21, and a spring 28 (first elasticity) that urges the actuating lever 21 to rotate in a direction in contact with the actuating inclined surface 11. Member). The stop lever 24 has one end attached to the case 26 and the other end attached to the stop lever 24, and a spring 29 (which urges the stop lever 24 to rotate in a direction in contact with the load bearing surface 12 for locking). A second elastic member).

  The center of gravity 30 of the hook member 22 is located in the centrifugal direction of the fixed shaft 27 around which the operating lever 21 rotates with respect to the position 31 where the hook member 22 is attached to the operating lever 21. The hook member 22 is provided with a hook 33 for engaging with the stop lever 24.

  The stop lever 24 is provided with a long hole 32 for moving relative to the operating lever 21 in the sliding direction when contacting the load bearing surface 12 for locking. Further, the stop lever 24 is formed with a convex portion 34 that engages with the hook portion 33.

  The case 26 is provided with a buffer material 40 (buffer member) that comes into contact with the stop lever 24. The buffer material 40 has a plurality of through holes 41 (relief portions) that absorb compression deformation and shock of the buffer material 40 at the time of contact. Prepare.

  3 and 4 are explanatory views showing the appearance of the fixing lock member 10, FIG. 3 is a perspective view, and FIG. 4 is a top view. The actuating inclined surface 11 in contact with the actuating lever 21 and the lock load bearing surface 12 in contact with the stop lever 24 are provided side by side in the width direction. An adjustment screw 15 for adjusting the inclination angle of the operation inclined surface 11 is provided on the lower surface side of the fixing lock member 10.

  Next, the operation of the anti-pinch device 1 when the shoji 3 is slid in the closing direction at a slow speed will be described with reference to FIGS.

  FIG. 5 is a diagram illustrating a state in which the operation lever 21 is in contact with the operation inclined surface 11. The actuating lever 21 has a force Fa that rotates the position 31 downward about the fixed shaft 27. At this time, a force Fg that moves downward to the center of gravity 30 also acts on the hook member 22 attached to the operating lever 21. When the shoji 3 is slid in the closing direction at a low speed, the speed at which the position 31 is rotated downward about the fixed shaft 27 is slow, and the force Fa in the rotating direction is smaller than Fg. 22 moves downward without rotating at position 31. At this time, the hanging portion 33 is engaged with the convex portion 34.

  FIG. 6 is a diagram illustrating a state in which the operating lever 21 rotates and the hook member 22 rotates the stop lever 24 downward. When the operating lever 21 rotates downward with the hook 33 and the projection 34 engaged, the stop lever 24 also rotates downward about the fixed shaft 27 against the biasing force of the spring 29. At this time, the contact surface 23 of the stop lever 24 moves downward from the load bearing surface 12 for locking, so the contact surface 23 and the load bearing surface 12 for locking do not contact. Therefore, the shoji 3 can be moved to a position where it is in contact with the sash frame 2 (fully closed).

  Next, the operation of the anti-pinch device 1 when the shoji 3 is slid in the closing direction at a high speed will be described with reference to FIGS.

  FIG. 7 is a view showing a state in which the operating lever 21 is in contact with the operating inclined surface 11 and the hook member 22 is rotated. When the shoji 3 is slid in the closing direction at a high speed, the speed of rotating the position 31 downward about the fixed shaft 27 becomes faster, and the force Fa in the opening direction becomes larger than Fg. In this case, an inertial force that tries to remain at the center of gravity 30 at the center of gravity 30 acts on the hook member 22 as it is, and the hook member 22 rotates at the position 31 so that the center of gravity 30 faces upward. At this time, the hanging portion 33 does not engage with the convex portion 34.

  FIG. 8 is a diagram illustrating a state in which the operating lever 21 rotates without the hook portion 33 being hooked with the convex portion 34. When the operating lever 21 rotates downward without engaging the hook portion 33 and the convex portion 34, the stop lever 24 is held at a position where it does not rotate by the biasing force of the spring 29. Therefore, the contact surface 23 of the stop lever 24 and the load-bearing surface 12 for locking can be contacted, and the shoji 3 is held (locked) at a position where it does not contact the sash frame 2.

  FIG. 9 is a diagram illustrating a state in which the stop lever 24 and the operation lever 21 are relatively moved in the sliding direction while the contact surface 23 of the stop lever 24 and the load bearing surface 12 for locking are in contact with each other. When the contact surface 23 of the stop lever 24 and the load bearing surface 12 for locking come into contact with each other, the stop lever 24 moves relative to the operation lever 21 in the sliding direction along the long hole 32. Accordingly, the fixed shaft 27 provided in the long hole 32 moves to the left side of the drawing along the long hole 32. At this time, the shock when the contact surface 23 of the stop lever 24 and the load-bearing surface 12 for locking come into contact is received by the buffer material 40 instead of the fixed shaft 27. A plurality of through holes 41 are formed in the buffer material 40, and the through holes 41 are deformed by an impact.

  FIG. 10 is a cross-sectional view of the operating inclined surface 11 of the fixing lock member 10. The actuating inclined surface 11 includes a guide plate 13 that forms the inclined surface of the actuating inclined surface 11, a torsion spring 14 (urging member) that urges the guide plate 13 toward the fixed frame 2, and an attachment of the torsion spring 14. The adjusting screw 15 is configured to adjust the inclination angle of the guide plate 13 against the force. When the adjusting screw is rotated, one end of the guide plate 13 is pushed upward. At this time, the other end forming the inclined surface of the guide plate 13 moves downward to reduce the inclination angle. By changing the inclination angle of the operating inclined surface 11, the rotation speed of the operating lever 21 that rotates in contact with the operating inclined surface 11 changes.

  FIG. 11 is a cross-sectional view of the operation inclined surface 51 of the fixing lock member 50, FIG. 12 is a top view of the fixing lock member 50, and FIG. 13 is a detailed view of the adjustment screw 55.

  The fixing lock member 50 is an improvement of the fixing lock member 10 of FIG. The operating inclined surface 51 includes a guide plate 53 that forms the inclined surface of the operating inclined surface 51, a torsion spring 54 (urging member) that urges the guide plate 53 in the direction of the fixed frame 2, and an attachment of the torsion spring 54. It is composed of an adjustment screw 55 (adjustment member) that adjusts the inclination angle of the guide plate 53 against the force. The adjustment screw 55 includes a male screw part 56 (engagement part), a bulge part 57 that is positioned above the male screw part 56 and larger than the diameter of the male screw part 56 in the state of being assembled to the fixed-side lock member 50, and a vertical direction. The negative holes 58 for adjusting the inclined surface of the operating inclined surface 51 by turning the adjusting screw 55 are provided at both ends of the lens. The guide plate 53 is provided with a female screw portion 59 (engagement portion) that is screwed with the male screw portion 56.

  When the minus screw 58 is turned using a screwdriver or the like (not shown), the adjustment screw 55 is moved relative to the male screw portion 56 of the adjustment screw 55 and the female screw portion 59 of the guide plate 53 to change the inclination of the operating inclined surface 51. The bulging portion 57 of the adjustment screw 55 is rotatably embedded in the fixing lock member 50.

  FIG. 14 is a modification of the pinch prevention device 1 of FIG. The same functions and the same parts as those in FIG. 2 will be described using the same reference numerals. The actuating lever 21 includes a female screw portion 35 (a hook allowance adjusting member) and an adjustment male screw 36 (a hook allowance adjusting member) that is screwed into the female screw portion 35 to push the hook member 22 in the rotating direction. Is provided.

  When the adjustment male screw 36 is rotated in one direction, the tip of the adjustment male screw 36 pushes the hook member 22 in the counterclockwise direction in the figure. When the hook member 22 rotates in the counterclockwise direction in the drawing, the hooking margin between the hook portion 33 and the convex portion 34 becomes small. On the other hand, when the adjustment male screw 36 is rotated in the other direction, the hook member 22 is rotated in the clockwise direction in the drawing, and the hooking margin between the hook portion 33 and the convex portion 34 is increased.

  In the pinching prevention device 1 of the present invention, the fixed side lock member 10 and the movable side lock member 20 are all constituted by mechanical parts, and the hook member 22 that changes the pinch prevention operation according to the rotation speed of the operating lever 21. It is possible to control mechanically by turning.

  Further, a spring 28 that rotates and biases the actuating lever 21 in a direction in contact with the actuating inclined surface 11 and a spring that rotates and biases the stop lever 24 in a direction in contact with the load bearing surface 12 for locking. 29, the operating lever 21 and the stop lever 24 can be held so as to return to the initial position when the shoji 3 is opened. Therefore, even if the shoji is repeatedly opened and closed, the function of preventing pinching always acts.

  Further, since the center of gravity 30 of the hook member 22 is located in the centrifugal direction of the fixed shaft 27 that is the rotation center of the operating lever 21 with respect to the position 31 where the hook member 22 is attached to the operating lever 21, The hook member 22 can be rotated by the movement. When the hook member 22 rotates, the lock load-bearing surface 12 of the fixed-side lock member 10 and the contact surface 23 of the stop lever 24 of the movable-side lock member 20 come into contact with each other, so that the pinching prevention operation can be performed.

  Further, since the stop lever 24 includes a long hole 32 for moving in the sliding direction of the shoji 3 with respect to the operating lever 21, the locking load bearing surface 12 of the fixed side lock member 10 and the movable side lock member 20. Even if the contact surface 23 of the stop lever 24 comes into contact, the fixed shaft 27 moves in the sliding direction in the long hole 32, so that the load applied to the fixed shaft 27 can be reduced and the durability is improved.

  In addition, since the shock absorber 40 is in contact with the stop lever 24, the lock load bearing surface 12 of the fixed lock member 10 and the contact surface 23 of the stop lever 24 of the movable lock member 20 come into contact with each other and the stop lever 24 slides. The load of the shoji 3 can be absorbed by the cushioning material 40 by moving in the direction, and the through hole 41 is deformed by impact, so that higher deformation and impact absorption are possible.

  Further, since the angle of the inclined surface of the guide plate 13 can be adjusted by the torsion spring 14 and the adjusting screw 15 on the operation inclined surface 11 of the fixed-side lock member 10, the operation lever 21 can be rotated even when the closing speed of the shoji 3 is the same. The moving speed can be changed, and the rotation of the hook member 22 can be adjusted. Since the rotation of the hook member 22 can be adjusted from the operating inclined surface 11, the timing for preventing pinching according to the closing speed of the shoji 3 can be easily adjusted.

  Further, since the adjustment screw 55 includes a bulge portion 57 positioned above the male screw portion 56 in a state where the adjustment screw 55 is assembled to the fixed-side lock member 50, the user adjusts the operating inclined surface 51 of the fixed-side lock member 50. In this case, it is possible to prevent the adjustment screw 55 from being dropped and lost.

  Further, by turning the male screw 36 to rotate the hook member 22, the hook allowance can be adjusted so that the hook portion 33 of the hook member 22 and the convex portion 34 of the stop link member 24 are reliably hooked.

It is the figure which attached the pinching prevention device of the present invention to a shoji and a sash frame. It is a block diagram of the pinching prevention device of the present invention. It is a perspective view of the locking member for fixation of the present invention. It is a top view of the locking member for fixation of the present invention. It is a figure which shows the state which the operation lever contact | abutted to the inclined surface for operation | movement by the pinching prevention apparatus at the time of sliding a shoji in the closing direction at a slow speed. It is a figure which shows the state which an operation lever rotates and a hook member rotates a stop lever below by the pinching prevention apparatus at the time of sliding a shoji in the closing direction at a slow speed. It is a figure which shows the state which the operation lever contact | abutted to the inclined surface for operation | movement, and the hook member rotated by the pinching prevention apparatus at the time of sliding a shoji in the closing direction at high speed. It is a figure which shows the state which an operation lever rotates in the prevention device against pinching when a shoji is slid in the closing direction at high speed, without a hook part and a convex part engaging. It is a figure which shows the state which the stop lever and the action | operation lever moved relatively in the sliding direction, with the contact surface of a stop lever, and the load bearing surface for a lock | rock contacting. It is sectional drawing of the inclined surface for an operation | movement of the locking member for fixation. It is sectional drawing of the inclined surface for an operation | movement of the locking member for fixation. It is a top view of the locking member for fixation. It is detail drawing of an adjustment screw. It is a modification of the pinching prevention device.

Explanation of symbols

1 Anti-pinch device 2 Sash frame (fixed frame)
3 Shoji (open / closed body)
DESCRIPTION OF SYMBOLS 10 Fixed-side lock member 11 Inclined surface for operation 12 Load bearing surface for lock 14 Torsion spring (biasing member)
15 Adjustment screw (Adjustment member)
20 movable side lock member 21 actuating lever (actuating link member)
22 Hook member 23 Contact surface (contact part)
24 Stop lever (stop link member)
27 Fixed shaft (rotation center)
28 Spring (first elastic member)
29 Spring (second elastic member)
30 Center of gravity 32 Elongated hole 35 Female thread part (Hook allowance adjusting member)
36 Male screw for adjustment (Hooking allowance adjustment member)
40 Buffer material (buffer member)
41 Through hole (relief part)
55 Adjustment screw (Adjustment member)
56 Male thread part (engagement part)
57 Swelling part 59 Female thread part (engagement part)

Claims (8)

A fixed-side lock member held by at least one of the opening / closing body or the fixed frame on which the opening / closing body slides, and a movable-side lock member held by at least the other of the opening / closing body or the fixed frame. A device that prevents the sliding opening / closing body from being caught,
The fixed-side lock member includes an operating inclined surface and a load-bearing surface for locking,
The movable side lock member includes an operation link member that rotates in contact with the operation inclined surface, a hook member that is attached to the operation link member and swings according to a rotation speed of the operation link member, An apparatus for preventing pinching of a slide-type opening / closing body, comprising: a stop link member that includes a contact portion that comes into contact with a load-bearing surface for locking and rotates by engaging with the hook member. A first elastic member that urges the operating link member in a direction in contact with the operating inclined surface; and a second elastic member that urges the stop link member in a direction in contact with the locking load bearing surface. The squeezing prevention device for a sliding type opening and closing body according to claim 1. 3. The center of gravity of the hook member is located at a position away from a rotation center of the operating link member with respect to a position where the hook member is attached to the operating link member. The squeezing prevention device for the sliding opening / closing body according to any one of the above. The said stop link member is provided with the elongate hole for moving relatively to the sliding direction of the said opening-closing body with respect to the said action | operation link member, when contacting with the said load-bearing surface for a lock | rock. 4. A device for preventing pinching of a sliding opening / closing body according to any one of claims 3 to 4. The slide type according to any one of claims 1 to 4, further comprising a buffer member that contacts the stop link member, and the buffer member includes a relief portion that absorbs compression deformation at the time of contact. Open / close body pinching prevention device. 6. The actuating inclined surface includes an urging member and an adjusting member, and an angle of the inclined surface can be adjusted by operating the adjusting member. The sliding-type opening-closing body prevention apparatus of description. The adjustment member includes an engagement portion, and a bulge portion that is positioned above the engagement portion and is larger than the diameter of the engagement portion when assembled to the fixed-side lock member. Item 7. An apparatus for preventing pinching of a sliding type opening and closing body according to Item 6. 8. The prevention of pinching of the sliding opening / closing body according to claim 1, wherein the operation link member includes a hook allowance adjusting member that pushes the hook member in a rotating direction. 9. apparatus.

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