JP6626416B2 - Lid opening / closing device for ventilation opening and skeleton opening building material provided with the same - Google Patents

Description

  The present invention relates to a device that opens and closes a lid provided at an intake / exhaust port, a ventilation port, and other ventilation openings in a building.In general, the lid can be opened and closed to a predetermined angle, and can be widely opened when necessary. The present invention relates to a lid opening / closing device for a ventilation opening and a skeleton opening building material provided with the same.

  A lid opening and closing is provided on the frame body with ventilation openings such as air intake and exhaust ports and ventilation holes, and a lid that covers this opening is pivotally attached to one side of the opening and opened and closed by rotating via an arm. An apparatus is known (for example, see Patent Document 1). In the device described in Patent Literature 1, the end of an arm is pivotally attached to a side plate provided on the side surface of a lid with a pin, a bracket plate having an inclined slot is provided on the frame side, and a movable pin slides on the inclined slot. The movable pin and the base end of the arm are connected to each other and pulled up by a tension coil spring. When the opening is closed by the lid, the movable pin is located below the inclined slot, and the distal end side of the lid is locked by an appropriate locking device. When the lid is unlocked, the movable pin is pulled up along the inclined slot by a spring, and the arm is raised accordingly, the lid is pushed up at the tip of the arm, the lid is pivoted about a pivot, and the opening is opened. It is configured so that the part can be opened. Such an opening and closing device is convenient because the lid is automatically opened by unlocking the lid, but the tip of the arm is connected to the lid by a mounting bolt, and the lid and the frame are connected via the arm. Since it is always connected, the lid cannot be opened further from the open state. Therefore, when it is necessary to clean the inside of the opening or perform maintenance, the lid obstructs the workability. In order to fully open the lid, the arm may be separated from the lid or the frame, but this is not easy. For example, in order to remove the arm from the lid, it is necessary to disassemble and remove fixing tools such as bolts and nuts that fix the tip of the arm to the lid, but removing work in a narrow space is troublesome, It is not easy.

Japanese Patent No. 3338419 (Claim 1, FIG. 1, FIG. 2)

  As described above, the present invention provides a ventilation opening in which a lid for opening and closing a ventilation opening such as a supply / exhaust opening, a ventilation opening can be normally opened to a predetermined angle via an arm, and can be fully opened if desired. It is an object of the present invention to provide a lid opening / closing device and a frame opening building material provided with the same.

  According to the present invention, a lid is pivotally attached to one side of a frame having a ventilation opening, the lid and the frame are connected by an arm, and the tip of the arm is moved up and down to open and close the lid. In the lid opening / closing device, the lid has a slide groove on a side surface, a guide projection fitted into the slide groove is provided at a tip of the arm, and a latch is provided on the lid. A lid opening / closing device for a ventilation opening, comprising: an operating portion for moving to a protruding position engaging with the guide projection and a retreating position for detaching from the guide projection, wherein the latch is disengaged from the guide projection by operation of the operating portion. Thus, the above problem is solved.

  The slide groove is preferably formed by a side rail extending in parallel along the upper surface of the lid and a guide rail provided with a space surrounded by edges positioned above and below the side, and an outer surface of the guide rail is formed. The opening is closed by a retaining piece after the guide protrusion of the arm is fitted into the slide groove.

  According to the present invention, the latch is urged by the latch spring toward the projecting position where the latch engages with the guide projection, and the lid is provided with an operating knob of the operating section to retract the latch to the retracted position. A lid opening / closing device for the ventilation opening is provided.

  The latch is preferably provided to face the guide projection and has a dog shaft, and a kicker provided on an operation knob faces a dock portion formed at the tip of the dock shaft. The slide groove and the guide protrusion are provided so as to protrude and retract within the trajectory in the relative movement direction.

  Further, according to the present invention, a bracket having an inclined groove and a guide groove provided in parallel with the inclined groove is fixed to the frame, and an operating piece having an engagement portion slides in the guide groove. The operating piece and the base end of the arm are connected by an operating shaft slidably fitted in the inclined groove, and the operating shaft is moved upward in the inclined groove by an arm spring. A lid opening / closing device for the ventilation opening is provided.

  According to the present invention, there is provided a skeleton opening building material provided with the lid opening / closing device for the ventilation opening.

  The present invention is configured as described above, the frame body and the lid formed with the ventilation opening is connected by an arm, the lid opening and closing device of the ventilation opening to open and close the lid by moving the arm up and down, the side of the lid A slide groove is provided, a guide protrusion provided at the tip of the arm is fitted into the slide groove, and a latch and an operating portion of the latch are provided on the lid to engage with the guide protrusion. By engaging the and the latch, relative movement between the latch and the slide groove can be prevented. Therefore, when the arm is moved up and down, the lid rotates in an open state and a closed state following the tip of the arm, and can open and close the ventilation opening. When the operating portion is operated to release the latch from the guide protrusion, the relative movement between the latch and the slide groove is free, and even if the guide protrusion of the arm is fitted into the slide groove, the slide groove is provided. The lid can be further opened and fully opened.

  Further, the latch is biased by a latch spring toward a protruding position where the latch engages with the guide projection, and an operation knob is provided on the lid as an operation unit for retracting the latch to the retracted position against the latch spring. If provided, in a normal state, the movement of the arm and the lid is restricted via the latch and the guide projection, so that the lid can be opened to a predetermined position by the arm. When the latch is retracted by the operation knob, the constraint between the arm having the guide projection and the lid is released, so that the lid can be easily fully opened.

  Further, a bracket having an inclined groove and a guide groove parallel to the inclined groove is provided on the frame body, and an operating piece having an engaging portion is slidably fitted in the guide groove, and a base of the operating piece and the arm is provided. The ends are connected by an operating shaft slidably fitted in the inclined groove, and the operating shaft is urged by an arm spring in a direction in which the operating shaft moves up the inclined groove. And the lid can be opened and closed smoothly.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory view showing an embodiment of the present invention when a lid is in a closed state. Explanatory drawing of a state where a stopper piece of a guide rail was omitted when a lid was in an open position. FIG. 5 is an explanatory view of a state where a stopper piece of a guide rail is omitted when a lid is at a fully open position. FIGS. 2A and 2B are explanatory diagrams illustrating a part of a lid as viewed from a plane, FIG. 2A is an explanatory diagram when a latch is at a retracted position, and FIG. The perspective view of a bracket part. FIG. 3 is an exploded perspective view of a base end portion of the arm. FIG. 5 is an exploded perspective view showing a part of a guide rail and an arm provided on a side surface of a lid, which are cut away. FIG. 4 is a perspective view of a base portion provided on the inner surface of the lid. Explanatory drawing which shows another Example.

  1 to 4 show an embodiment of the present invention. A frame 1 provided in a building is provided with an air intake / exhaust port, a ventilation port, and other ventilation openings 2, and opens and closes the ventilation openings. The cover 3 is formed as described above, and the cover 3 is rotatably attached by fitting a pivot 4 provided on one side of the cover into a receiving groove 5 provided on the frame.

  A bracket 6 having a mounting portion 7 extending downward in a substantially L-shape is fixed to the frame 1 with mounting screws. As shown in FIGS. 1 and 5, the bracket 6 is formed with an inclined groove 8 which is inclined so that the pivot 4 side of the lid 3 is lowered, and a guide groove 9 is provided below the inclined groove 8 in parallel with the inclined groove 8. Have been. An operation piece 10 is slidably fitted in the guide groove 9, and an inlet 11 for inserting a part of the operation piece 10 is formed at an upper end of the guide groove 9. At the lower end of the operating piece 10, there is formed an engaging portion 12 which is bent in a substantially L-shape and the tip of which extends in the lateral direction of the bracket. The engaging portion 12 is inserted into the guide groove 9 from the inlet 11. The operating piece 10 slides while being engaged with the edge of the guide groove 9. The operating piece 10 is a plate-like body extending in the direction of the inclined groove 8, and has a mounting hole 13 at a position facing the inclined groove 8.

  An operating shaft 14 is slidably fitted in the inclined groove 8. The operating shaft 14 has a small-diameter sliding portion 15 fitted into the inclined groove 8 at the tip, and connects the operating piece 10 to the operating shaft 14 through the mounting portion 13 of the operating piece 10 through the sliding portion 15. A spring receiving piece 17 having a washer-shaped plate-like body and a latching piece 16 protruding from the side thereof is superimposed on the tip of the operating shaft 14 that has penetrated the inclined groove 8 and appears on the side surface of the bracket 6. And the like. A latching piece 19 is also provided on the upper edge corner of the bracket 6, and an arm spring 20 composed of a tension coil spring or the like is latched on the latching pieces 16, 19 to tilt the operating shaft 14. It is urged in the upward direction along the groove 8.

  A mounting hole 23 provided at a base end of the arm 22 is inserted into a connecting portion 21 provided at a rear end of the operating shaft 14, and the arm 22 is fixed to the operating shaft by a fixing tool 59 such as a pin or a screw via a washer 58. Is pivoted to. A guide projection 25 having a receiving hole 24 is provided at the tip of the arm 22 as shown partially cut away in FIG. The guide projection 25 may be formed integrally with the arm 22 or separately as shown in FIG. 7 and then integrated therewith. When it protrudes, its tip enters, and the lid 3 and the tip of the arm 22 are restrained so as to allow rotation but not to move relatively.

  On the side surface of the upper lid 3, a slide groove 27 is formed in which the guide projection 25 provided at the tip of the arm 22 enters. Although the slide groove 27 can be formed directly on the side surface of the lid 3, in the embodiment shown in FIG. 1, it is formed in a box shape protruding from the side surface of the lid. FIG. 7 shows such a box-shaped guide rail 28, which rises from a substrate 31 fixed to a side surface of the lid 3 by a fixture and faces substantially parallel along the upper surface of the lid 3. A sliding groove 27 is formed by providing a box-shaped space in which an outer surface portion is opened by an extending side edge 29 and an end side 30 standing on an end side of the side edge 29. The distance between the side edges 29 of the guide rail is larger than the outer diameter of the guide protrusion 25. After the guide protrusion 25 of the arm 22 is inserted into the slide groove 27 on the outer surface of the guide rail 28, the guide protrusion 25 slides. An L-shaped stopper piece 33 formed in a substantially L-shape so as not to fall out of the groove 27 is fixed to an end 30 of the guide rail 28 by a fixing tool 34 such as a mounting screw, thereby closing the opening.

  On the side surface of the lid 3, a through hole 35 communicating with the through hole 32 provided in the substrate 31 of the guide rail 28 is provided. The position of the through hole 35 is a position corresponding to a portion where the guide protrusion 25 provided at the distal end of the arm 22 is located when the base end side of the arm 22 is located below the inclined groove 8. A latch 26 is provided so as to be inserted into the through hole 35, and the latch 26 is engaged with the projecting position of the guide projection 25 engaging with the receiving hole 24, and is released from the receiving hole 24 of the guide projection 25 to engage. It is provided so as to be movable between the disengaged retreat positions.

  The latch 26 has, at its tip, an inclined surface 36 that can protrude from the through holes 32 and 35, and forms a small-diameter portion 38 at a rear portion via a step portion 37, and attaches the small-diameter portion 38 to the inner surface of the lid 3. A latch spring 42 is provided between the receiving piece 40 and the step portion 37 and is urged toward the projecting position by being inserted into a support hole 41 provided in the receiving piece 40 of the fixed base 39. A dog shaft 43 is formed on the latch 26 so as to extend in a direction intersecting with the axis of the latch. A guide piece 44 is formed on the base 39 along the latch 26. The dog shaft 43 penetrates, and a dog portion 46 is formed to protrude rearward of the guide piece 44 in FIG.

  The base 39 is formed with two fixing pieces 47 for fixing to the back side of the side surface of the lid 3, and the operation knob 50 is turned by a knob shaft 49 on a mounting piece 48 which is bent from one fixing piece 47 and extends. An operation unit that is movably pivoted and operates a latch is configured. The operation knob 50 has an outer portion protruding from the back surface on the opening end side of the lid 3, and an inner portion bent and extended along the inside of the fixing piece 47 beyond the pivotally connected portion by the knob shaft 49, A kicker 51 is provided extending along the side surface of the dog portion 46 formed behind the dog shaft 43. Since the latch 26 is urged by the latch spring 42 in the protruding position direction, the dog portion 46 of the dog shaft 43 is located on the left side of the long hole 45 in FIG. Then, the kicker 51 is also pushed to the left, and the operation knob 50 rotates around the knob shaft 49 and stops in contact with a stopper (not shown) formed inside the lid 3. In this state, as shown in FIG. 4B, the latch is at the protruding position, and the tip is engaged with the receiving hole 24 of the guide projection 25. When the operation knob 50 is rotated counterclockwise as shown in FIG. 4A, the kicker 51 presses the dog portion 46 rightward, whereby the latch 26 moves to the retracted position.

  With the configuration described above, in a normal state, the latch 26 is at the protruding position, and its tip is engaged with the guide projection 25 of the arm 22. When the ventilation opening 2 is closed by the lid 3 as shown in FIG. 1, the open end of the lid 3 is locked by a suitable locking means (not shown), and the closed state is maintained. When the lock by the locking means is released, the arm 22 is urged by the arm spring 20 in the direction in which the base end is raised. , And is opened to a predetermined position, in the embodiment shown in FIG. When the lid 3 is pressed down from this state, the lid 3 rotates toward the closed position, and the ventilation opening can be closed.

  When the operation knob 50 is rotated in the state where the lid 3 is opened to a predetermined angle as described above, the latch 26 retreats and the leading end is disengaged from the guide projection 25, so that the slide groove 27 and the guide projection 25 are relatively moved. It becomes slidable, the lid 3 can be freely rotated, and can be fully opened as shown in FIG. At this time, since both ends of the arm 22 are pivotally attached, the arm 22 rotates with the rotation of the lid 3 and does not hinder the rotation of the lid.

  When the lid 3 is fully opened as described above, the tip of the latch 26 is pushed by the latch spring 42 and projects from the through holes 32 and 35. When the lid 3 is rotated from the fully open position to the closed position, the latch 26 engages with the receiving hole 24 of the guide projection 25 while being retracted while being guided by the inclined surface 36 at the tip during the rotation, Since the arm 22 and the lid 3 are connected, the arm 22 moves down to the closed position together with the lid 3 and returns to the closed state shown in FIG.

  In the above embodiment, the tip of the guide protrusion of the arm and the tip of the latch are opposed to each other, and the latch is moved linearly to engage and disengage the guide protrusion and the latch. The latch may be rotatably provided so as to protrude and retract in the trajectory of the typical movement direction, and the movement may be controlled. FIG. 9 shows an example of such a case. A slide groove 52 is formed on the side surface of the lid 3 in parallel with the upper surface of the lid. Projecting from the back side of the side surface of the. A latch 53 is provided on the back side of the side surface so that the movement of the guide projection 25 and the lid 3 can be restrained at the end of the slide groove 52 on the side where the guide projection 25 is located when the lid 3 is in the closed position. I have. The base of the latch 53 is pivotally connected to the side surface of the lid 3 by a pivot 54, the tip is formed in a hook shape, and the outer peripheral portion that appears in the slide groove 52 forms an arc surface. The latch 53 is urged by a latch spring 55 in a direction in which the leading end engages the guide protrusion 25 (counterclockwise in FIG. 9), and is rotatable until it comes into contact with a stopper 56. An operation knob 57 is connected to the base side of the latch 53, and the operation knob 57 allows the latch 53 to rotate to a position where the tip of the latch 53 retreats from a position protruding into the slide groove 52.

  With the above configuration, the guide projection 25 and the slide groove 52 are restrained by the latch 53 in the normal state, so that when the tip of the arm 22 is moved up and down similarly to the above-described embodiment, the lid 3 is opened and closed to a predetermined angle. Can be. When the operation knob 57 is rotated clockwise in FIG. 9 to release the engagement between the guide projection 25 and the latch 53, the relative movement of the slide groove 52 and the guide projection 25 becomes possible, and the lid 3 is fully opened. be able to. When the lid 3 is rotated in the closing direction from the fully opened position, the latch 53 returns to the state shown in FIG. 9 by the latch spring 55. However, if the guide projection 25 hits the arc surface of the latch 53 during the movement, The latch 53 retreats while rotating clockwise against the latch spring 55, and when the guide projection 25 is located at the end of the slide groove 52, the latch 53 rotates counterclockwise by the latch spring 55. The protrusion protrudes into the slide groove, and the guide protrusion 25 can be restrained again.

REFERENCE SIGNS LIST 1 frame 3 lid 6 bracket 8 inclined groove 9 guide groove 10 operating piece 14 operating shaft 17 spring receiving piece 20 arm spring 22 arm 25 guide projection 26 latch 27 slide groove 28 guide rail 33 detaching stop piece 39 base 42 latch spring 43 dog Axis 50 Operation knob 51 Kicker

Claims (2)

  A lid opening / closing device for a ventilation opening that pivots a lid on one side of a frame having a ventilation opening, connects the lid and the frame with an arm, and moves the tip of the arm up and down to open and close the lid. The lid has a slide groove on the side surface, and a guide projection is provided at the tip of the arm to be fitted into the slide groove. A latch is provided on the lid, and a projection position for engaging the latch with the guide projection is provided. A cover opening / closing device for a ventilation opening, comprising: an operating portion for moving to a retreat position where the latch is released from the guide protrusion by operating the operating portion.   A frame opening building material to which the lid opening / closing device for a ventilation opening according to claim 1 is attached.

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