JP5450210B2 - Assist handle - Google Patents

Description

  The present invention relates to an assist handle that is attached to a shoji that slides inside an opening and closing port of a building or the like, and that can reduce initial resistance when opening the shoji in a closed state.

  Conventionally, as this type of assist handle, there has been known a structure in which a handle portion and a pressing portion are assembled in a movable state on a base portion attached to a door rod in a sash glass door. In this assist handle, when the glass door is in the closed position, when the handle portion is pulled toward the door butt side with respect to the base portion, the pressing portion moves to the door end side and presses the inner surface of the opening / closing opening, Initial motion resistance is reduced. Such an assist handle includes a so-called lever type in which the handle portion rotates in a plane parallel to the interior surface of the glass door (for example, see Patent Document 1), and a rotation in which the handle portion extends in the vertical direction. There is a so-called fin type (for example, see Patent Document 2) that rotates about an axis, and a slide type (for example, see Patent Document 3) in which the handle portion slides in the opening / closing direction of the glass door.

Japanese Patent Laid-Open No. 2003-314095 (FIGS. 2 and 4) JP 2006-97248 A (FIGS. 2 and 4) Japanese Patent No. 3927938 (FIGS. 4 and 6)

  However, the above-described conventional assist handle has a problem that the base portion of the assist handle protrudes from the door toe side to the door bottom side and looks bad. In addition, in the case where the base part of the assist handle does not protrude from the door toe side to the door butt side, the components of the assist handle are stacked in the thickness direction of the glass door. It protruded greatly from the room to the indoor side, and it could be caught on the curtain or interfere with the paper guard.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide an assist handle that can be made more compact in the width direction and the thickness direction than in the past.

  If the inventor of the present application reduces the pressing stroke of the pressing portion of the assist handle, the assist handle becomes compact in the width direction and does not protrude from the door toe side, and as a result, components of the assist handle It was no longer necessary to overlap the shoji in the thickness direction of the shoji, and the assistant handle was found to be compact in the thickness direction. Therefore, when the relationship between the opening operation resistance of the shoji (for example, a glass door) and the position of the shoji was examined without using the assist handle, the opening operation resistance was detected while the shoji moved from the closed position to the seal separation position. It was found that the opening operation resistance gradually decreased until the shoji reached the seal separation position, and the opening operation resistance became a steady value after the seal separation position. In other words, when the relationship between the opening operation resistance and the position of the shoji is graphed, an initial movement resistance with a mountain-shaped waveform occurs before the opening operation resistance reaches a steady value, and the initial movement resistance is between the closed position and the seal separation position. It turned out to be a peak value. Specifically, when the shoji of the seal member protrudes from the door toe of the shoji, and the shoji is in the shape of a bow when the shoji is in the closed position, the shoji is closed. During the movement from the position to the seal separation position, it turned into a reverse bow shape that warped in the opposite direction, and it was found that the opening operation resistance reached a peak value at that time. On the other hand, the conventional assist handle presses the pressing portion so that the pressing portion continues to press the inner surface of the opening / closing port until the shoji has passed the seal separation position regardless of the type of lever, fin, and slide. I also found that the stroke was set.

  By the way, in the conventional assist handle, the assist works even if the shoji passes the seal separation position (that is, it assists excessively), so that the pressing portion reaches the end of the press stroke after the shoji passes the seal separation position. Until this time, the opening operation resistance becomes smaller than the steady value. After that, when the pressing portion reaches the end of the pressing stroke and the assist is finished, the opening operation resistance sharply increases to a steady value, and there may be a feeling that the shoji becomes heavy. In view of these, the inventor of the present application, when using the assist handle, arranges the assist end position between the resistance peak position where the initial movement resistance of the shoji when not using the assist handle reaches the peak value and the seal separation position. Thus, by setting the pressing stroke of the pressing portion, the present invention has invented an assist handle that is more compact than the conventional one and suppresses a sharp increase in opening operation resistance at the end of assist.

  That is, the assist handle according to the first aspect of the present invention, which has been made to achieve the above object, is a shoji in which a seal member is provided at either or both of the shoji and the opening / closing opening that is opened and closed by the shoji to prevent the draft. The handle part and the pressing part are assembled in a movable state to the base part that is provided in the opening / closing mechanism and attached to the door toe of the shoji, and when the shoji is in the closed position, the handle part is attached to the base part. In the assist handle that can reduce the initial movement resistance of the shoji, the seal member is in close contact with the shoji in the closed position. There is a resistance peak position where the initial resistance becomes the peak value when the assist handle is not used, between the seal separation position and the closing position of the shoji when separating from the seal adhesion part. Between between positions, having characterized in that the pressing unit has set the pressing stroke of the pressing portion with respect to the inner surface of the closure as the assist termination position spaced from the inner surface of the closure is arranged.

  According to a second aspect of the present invention, there is provided the assist handle according to the first aspect, wherein the pair of doors of the shoji and the vertical sides of the opening / closing opening are opposed to each other in the thickness direction of the shoji when the shoji is in the closed position. The seal member is provided with a seal projecting piece that protrudes from one of the door-facing surfaces and has a tip that is in close contact with the other door-facing surface. When the door is in the closed position, it has a bowed shape so that the distal end is located on one side of the opening / closing direction of the shoji from the base end, and the reverse side when the shoji passes the resistance peak position from the closing position It is configured to reverse to the reverse bow shape that warped, and after the seal projection piece has been reversed to the reverse bow shape, the pressing stroke is set so that the position before completely separating from the seal adhesion part is the assist end position. Characterize where you set it To.

  According to a third aspect of the present invention, in the assist handle according to the first or second aspect, the handle portion extends in the vertical direction and is rotatably supported by the base portion at a position close to the lower end thereof and parallel to the indoor surface of the shoji. A lever structure that can rotate inside, a guide part that is formed on the base part and guides the pressing part so that it can move directly in the opening / closing direction of the shoji, and either the lower end part of the handle part or the pressing part A pin long hole connecting mechanism that has a formed long hole and a pin formed on the other side and connected to the long hole, and moves the pressing portion in synchronization with the rotation of the handle portion, and the pressing portion as a shoji. It has the characteristic in the place provided with the urging | biasing spring urged | biased to the door bottom side.

  According to a fourth aspect of the present invention, there is provided the assist handle according to the first or second aspect, wherein the handle portion is a gate having a pair of connecting projections extending from the upper and lower ends of the handle portion extending in the vertical direction to the door end side. It has a shape structure, extends vertically in the base part, is arranged symmetrically in the vertical direction, and is supported by the base part so that the middle part in the vertical direction can be rotated, and can rotate in a plane parallel to the indoor surface of the shoji. The tip portions of the pair of symmetric rotation levers are coupled at the intermediate position in the vertical direction of the base portion so that the pair of symmetric rotation levers and the pair of symmetric rotation levers rotate in conjunction with each other. A handle having a lever coupling mechanism, a long hole formed in one of the base end portion of each symmetric rotation lever and each connecting projection, and a pin formed in the other and connected to the long hole, Pin length that rotates a pair of symmetrical rotation levers in conjunction with the linear movement of the part A lever that has a pair of opposing walls sandwiching a connecting mechanism and a tip end portion of a pair of symmetrical rotating levers in the opening / closing direction of the shoji, and is integrated with the pressing portion It has a feature in that it includes a linear motion relay member that linearly moves in the opening / closing direction of the shoji together with the tip coupling portion, and an urging spring that urges the pressing portion toward the door bottom of the shoji.

  According to a fifth aspect of the present invention, in the assist handle according to the first or second aspect, the handle portion has a structure that extends vertically and protrudes from the base portion to the side opposite to the shoji and extends in the vertical direction. The press part is connected to the base part so as to be pivotable about the base part, and is supported by the upper and lower ends of the base part so as to be movable in the opening / closing direction of the shoji, and the pair of press parts. A pair of urging springs for urging the shoji to the door butt side of the shoji, projecting toward the shoji from the rotating shaft at both ends of the handle portion in the vertical direction, and end surfaces on the door butt side of the pair of pressing portions It is characterized in that it has a pair of handle base end sliding contact portions that are in contact with each other so as to be slidable.

  According to the assist handle of the present invention, the pressing stroke of the pressing portion is set so that the assist end position is arranged between the resistance peak position and the seal separation position. The pressing stroke is reduced. As a result, the assist handle becomes compact in the width direction, so that it does not protrude from the door toe side to the door butt side, and it is not necessary to stack the components in the thickness direction of the shoji, so it is also compact in the thickness direction. Moreover, since the assist operation ends after the peak value of the opening operation resistance is lowered by the assist force by the setting of the pressing stroke, excessive assist is reduced as in the conventional case, and the opening operation resistance at the end of the assist is steep. The increase is suppressed, and the initial resistance can be gradually brought close to the steady value of the opening operation resistance.

  Further, in the configuration of claim 2, when the seal protrusion provided on the seal member of the shoji opening / closing mechanism is reversed from the bow shape to the reverse bow shape in the process of opening the shoji, the opening operation resistance has a peak value, By reducing the peak value, the initial resistance can be gradually brought close to the steady value of the opening operation resistance.

  Further, the present invention is such that the handle portion has a lever structure as in the assist handle of claim 3, and the handle portion has a portal structure and moves linearly as in the assist handle of claim 4. In addition, the present invention can also be applied to an assist handle that rotates about a rotation axis in which the handle portion extends in the vertical direction, such as the assist handle of claim 5.

Sectional drawing of the opening and closing opening provided with the assist handle of 1st Embodiment of this invention Perspective view of assist handle Front sectional view of assist handle when not in use Front sectional view of the assist handle in use Sectional drawing of the assist handle in CC section of FIG. (A) Sectional view of the assist handle in section AA in FIG. 3, (B) Sectional view of the assist handle in section BB in FIG. (A) Flat cross-sectional view of glass door in closed position, (B) Flat cross-sectional view of glass door immediately after passing through resistance peak position, (C) Flat cross-sectional view of glass door immediately before seal separation position Sectional drawing of the opening and closing port provided with the assist handle of 2nd Embodiment Perspective view of assist handle Perspective view of assist handle Front sectional view of assist handle when not in use Front sectional view of the assist handle in use Sectional drawing of the assist handle in the DD cross section of FIG. Sectional drawing of the assist handle in the HH cross section of FIG. (A) Sectional view of assist handle in section GG in FIG. 11, (B) Sectional view of assist handle in section EE in FIG. Front sectional view of the assist handle of the third embodiment when not in use Front sectional view of the assist handle in use Sectional drawing of the assist handle in the JJ cross section of FIG. Sectional drawing of the opening and closing opening provided with the assist handle of 4th Embodiment Perspective view of assist handle Front section of assist handle (A) Sectional view of the assist handle when not in use, (B) Sectional view of the assist handle in use

[First Embodiment]
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a plan sectional view of an opening / closing port 10 as a window of a building. About half of the outdoor side of the opening / closing port 10 is surrounded by a glass door support frame 11 made of aluminum and resin, and about half of the indoor side is covered with a wooden Japanese paper support frame 12. A pair of glass doors 13 and 13 (corresponding to the “shoji” of the present invention) are slidably supported so as to pass each other inside the glass door support frame 11, while the Japanese shoji support frame 12. A pair of Japanese children 29 and 29 are slidably supported so as to pass each other.

  Each glass door 13 has a double glass structure in which a pair of glass plates 14 and 14 are surrounded and supported by a glass frame 15. Each glass frame 15 is formed by joining aluminum rectangular cylinders in a frame shape, and one vertical side portion of the glass frame 15 is a door-end rod 18 according to the present invention, and the other vertical side portion is a door bottom. It is 框 16. And it is locked and unlocked by a crescent lock 17 provided between the door ridges 16 and 16 of both glass doors 13 and 13.

  A seal member 25 for preventing a draft between the glass door 13 and the inner side surface 10 </ b> H of the opening / closing port 10 is attached to the door rod 18 of each glass door 13. Specifically, a seal accommodation groove 21 is formed in the entire vertical direction on the end face of each door 13 that faces the sliding direction of the glass door 13. On the other hand, from each inner side surface 10H of the glass door support frame 11, a standby projecting wall 22 (corresponding to the “seal close contact portion” of the present invention) that can enter into each seal housing groove 21 is provided in the entire vertical direction. It is formed so as to protrude.

  A guide component 23 and a seal protrusion 24 are provided in the seal housing groove 21. The guide component 23 covers a back surface in the seal housing groove 21 and an inner surface closer to the room. Further, the portion covering the indoor side has a shape that swells to the opening surface of the seal housing groove 21, and the portion covering the inner side surface closer to the room swells to the center position in the width direction of the seal housing groove 21. When the glass door 13 is closed, the taper surface 23A of the guide component 23 comes into contact with the standby projection wall 22, and the glass door 13 is moved to the indoor side by the action of the taper. It is configured to be in close contact with the wall 22.

  The inner surface of the groove disposed outside the standby protrusion wall 22 in the seal housing groove 21 and the side surface of the standby protrusion wall 22 facing the inner surface of the groove are “a pair of door tips according to the present invention. It corresponds to “opposing surface”. From the inner surface of the seal housing groove 21 corresponding to one “door-facing surface”, a pair of seal protrusions 24, 24 provided on the seal member 25 corresponds to the other “door-facing surface”. It protrudes toward the side surface of the standby projecting wall 22. The pair of seal protrusions 24, 24 has a fin shape that is slightly thinner toward the tip, and extends in the vertical direction in parallel with each other. The sealing protrusions 24, 24 are in close contact with the standby protrusion wall 22 when the glass door 13 is closed.

  Specifically, the seal projecting pieces 24, 24 protrude vertically from the inner surface of the seal housing groove 21 in a state of being separated from the standby projecting wall 22. Then, when the glass door 13 is closed, as shown in FIG. 7 (A), the seal projection pieces 24, 24 have a bowed shape that warps so that the tip ends of the seal projection pieces 24, 24 are shifted from the base end portion to the door bottom side. The tips of 24 and 24 are in close contact with the standby protrusion wall 22. On the other hand, when the glass door 13 is opened from the closed state, in the process, the seal projecting pieces 24, 24 are inverted into a reverse bow shape that warps on the opposite side due to friction with the standby projecting wall 22 (FIG. 7B). )reference). When the glass door 13 is further opened, the seal protrusions 24 and 24 are sequentially separated from the standby protrusion wall 22 (see FIG. 7C), and protrude vertically from the inner surface of the seal housing groove 21. Returns to the elastic state.

  As shown in FIG. 1, in the state where the glass doors 13 and 13 are closed, the air gaps between the door ridges 16 and 16 in the glass doors 13 and 13 are also prevented by the seal member 27. Specifically, the sealing member is provided along the edge of the one glass door 13 facing away from the door toe 18 on the side facing the door bottom 16 of the other glass door 13. 27 is provided. The seal member 27 is provided with a pair of seal protrusions 26 and 26 having the same shape as the seal protrusion 24 of the door toe 18 described above. It comes in close contact with the side edge. These sealing protrusions 26 and 26 are also inverted from the bow shape to the reverse bow shape when the glass door 13 is opened. Further, the seal projection piece 26 on the door bottom heel 16 side is separated from the close contact partner at the same time when the seal projection pieces 24 and 24 on the door end fence 18 side are opened.

  In addition, as shown in FIG. 7C, from the state in which one seal projection piece 24 is separated from the standby projection wall 22 and the other seal projection piece 24 is in contact with the standby projection wall 22, the glass door 13 is The position when the other seal projecting piece 24 is also moved away from the standby projecting wall 22 is moved to the opening side slightly (moved to the left side in FIG. 7C). Is equivalent to. Further, the position of the glass door 13 shown in FIG. 7A corresponds to the “closed position” according to the present invention.

  Now, an assist handle 30 is attached to each indoor surface of the door rod 18 of each glass door 13. As shown in FIG. 2, the assist handle 30 is configured by assembling a handle portion 35 and a pressing portion 38 in a movable state to a base portion 31 attached to the door toe 18.

  The base portion 31 is a flat rectangular parallelepiped base cover whose vertical direction is longer than the horizontal direction (direction parallel to the opening and closing direction of the glass door 13) and whose thickness direction (direction passing through the glass door 13 inward and outward) is smaller than the horizontal direction. A fixed sheet metal base 33 made of sheet metal is accommodated inside 32. Note that the base cover 32 is open at the door end 18 side, and the fixed sheet metal base 33 is assembled into the base cover 32 from the opening. Further, on the right side of FIG. 2, the assist handle 30 is shown with the handle body 36 and the base cover 32 removed.

  The handle portion 35 extends in the vertical direction and is rotatably supported by the base portion 31 at a position near its lower end, and rotates in a plane parallel to the indoor surface of the glass door 13. Further, the rotation center of the handle portion 35 is disposed at a position near the upper end and near the door bottom in the base portion 31. Specifically, the handle portion 35 is provided with a vertically long sheet metal lever plate 37 shown on the right side of FIG. 2 on the inside of a handle body 36 having a square groove structure having a groove opening on the surface facing the door rod 18. Contain. A pair of screw holes 37A, 37A are formed through the lever plate 37 above the rotation center, and screws 37V, 37V inserted therethrough are fastened to the handle body 36 (see FIG. 5).

  A rotation support pin 35P is provided in a state of being fixed to the lever plate 37 at the rotation center of the handle portion 35, and a connection pin 37P is provided in a state of being fixed to the lever plate 37 at the lower end portion of the handle portion 35. It has been. In addition, a stepped portion is provided at the intermediate position in the vertical direction on the surface of the handle body 36 facing the doorside rod 18 side, and the upper part of the stepped portion is thicker on the doorside rod 18 side. A portion of the handle portion 35 below the stepped portion is overlapped with the base portion 31 from the side opposite to the door end rod 18. Further, the handle portion 35 is held in an upright posture extending straight in the vertical direction when not operated, and the side surface on the door butt side of the handle portion 35 and the side surface on the door butt side in the base portion 31 are surfaces in the upright posture. It arrange | positions so that it may become one (refer FIG. 3).

  As shown in the left part of FIG. 2, an anti-slip protrusion 35 </ b> Z is formed on the side surface of the handle portion 35 on the door tip side by causing the tip portion to bulge toward the door tip side.

  As shown in the right part of FIG. 2, a groove-shaped pin support portion 33 </ b> W protruding to the indoor side is formed at the door bottom side end portion of the fixed sheet metal base 33 excluding the lower end portion. Then, the rotation support pin 35P is rotatably supported by the pin support portion 33W through the through hole 32K (see FIG. 6A) formed in the base cover 32 and is prevented from coming off.

  As shown in FIG. 3, a pair of base mounting holes 33 </ b> A and 33 </ b> A are formed at positions that are symmetrical in the vertical direction at the end of the door end side of the fixed sheet metal base 33. On the other hand, the base cover 32 has a lid portion in which a corner portion on the door tip side in the upper end portion and a corner portion on the door tip side in the lower end portion are detachable from the box-shaped main body portion 32A of the base cover 32. 32B and 32B (see FIG. 2). Then, the base mounting holes 33A and 33A are exposed in a state where the lid portions 32B and 32B are detached from the box-shaped main body portion 32A, and the base portion 31 is connected to the door tips by screws (not shown) inserted into the base mounting holes 33A and 33A. It is fixed to the flange 18.

  As shown on the left side of FIG. 2, a rectangular hole 32C is formed at the center in the vertical direction on the side surface of the base cover 32 facing the door end side, and the pressing portion 38 is accommodated therein so as to be capable of linear movement. ing. The entire pressing portion 38 has a substantially rectangular column shape with a rectangular cross section and extends in the opening / closing direction of the glass door 13. In addition, a locking protrusion 38T (see FIG. 6B) is formed from the door-side edge of the pressing portion 38 toward the door-end rod 18 side, and when the pressing portion 38 is moved rearward, The locking protrusions 38 </ b> T cover the edge of the fixed sheet metal base 33.

  As shown in FIG. 3, guide walls 32 </ b> G and 32 </ b> G corresponding to “guide portions” according to the present invention extend from the upper and lower opening edges of the rectangular hole 32 </ b> C in the horizontal direction in the base cover 32. . Further, the pressing portion 38 has a stepped shape at an intermediate portion in the longitudinal direction, the front end side (door tip side) is wide, and the rear end side (door bottom side) is narrow. And the wide part of the front side among the press parts 38 is slidably contacted with the guide walls 32G and 32G, and is guided so that it can move linearly.

  A vertically long hole 38 </ b> L extending in the vertical direction is formed at the rear end of the pressing portion 38. The base cover 32 is formed with a horizontally elongated hole 32L corresponding to the vertically elongated hole 38L below the through hole 32K through which the rotation support pin 35P is passed. The horizontally elongated hole 32L has an arc shape centered on the rotation center of the handle portion 35, and is positioned below the rotation support pin 35P. And as shown in FIG. 5, the connection pin 37P with which the lower end part of the handle | steering-wheel part 35 was equipped is inserted in the horizontally long hole 32L and the vertically long hole 38L. Accordingly, as shown in FIG. 4, when the upper end portion of the handle portion 35 is pulled toward the door bottom side from the rotation center, the pressing portion 38 moves straight to the door tip side and protrudes from the base portion 31 (see FIG. 4). ).

  Below the pressing portion 38, a spring support column 32P is formed on the inner surface of the base cover 32, and a torsion coil spring 39 is attached thereto. One end portion of the torsion coil spring 39 is engaged with the bent portion 33Z of the fixed sheet metal base 33, while the other end portion is engaged with the connecting pin 37P. The torsion coil spring 39 urges the handle portion 35 in an upright posture extending in the vertical direction, and the pressing portion 38 is urged in a direction to be immersed in the base portion 31.

  In the present embodiment, when the handle portion 35 and the pressing portion 38 are moved to one end side of the movable range, the connecting pin 37P contacts the lever stopper leg portion 33B1 at one end portion of the laterally long hole 32L of the pin support portion 33W for positioning. On the other hand, when the handle portion 35 and the pressing portion 38 are moved to the other end side of the movable range, the connecting pin 37P is positioned by abutting against the lever stopper leg portion 33B2 at the other end portion of the laterally long hole 32L of the pin support portion 33W. (See FIG. 6B). That is, the linear motion stroke of the pressing portion 38 is set by the arrangement of the lever stopper leg portions 33B1 and 33B2.

  Now, the linear motion stroke of the pressing portion 38 in the assist handle 30 of the present embodiment is set as follows. That is, as shown in FIG. 7A, the end surface of the pressing portion 38 faces the inner side surface 10H of the opening / closing port 10 with the glass door 13 closed and the pressing portion 38 disposed at the rear end position of the linear motion stroke. On the other hand, they are arranged so as to face each other with a predetermined dimension (for example, 1 [mm]). Then, when the glass door 13 is opened while pulling the upper end of the handle portion 35 toward the door butt side, both the sealing protrusions 24 and 24 are changed from the bow shape shown in FIG. 7 (A) to FIG. 7 (B). 7C until the pressing portion 38 continues to press the inner surface 10H of the opening / closing port 10 until it is reversed to the reverse bow shape shown in FIG. 7, and both the sealing protrusions 24, 24 are reversed to the reverse bow shape. ), The pressing portion 38 of the opening / closing port 10 is moved to a position where one seal protrusion 24 is separated from the standby protrusion wall 22 and the other seal protrusion 24 is in close contact with the standby protrusion wall 22. The inner surface 10H is pressed. Then, before the other seal projection piece 24 is separated from the standby projection wall 22, the pressing portion 38 reaches the end of the pressing stroke that presses the inner surface 10 </ b> H, and the pressing stops, and the glass door 13 is opened further. Then, the pressing stroke of the pressing portion 38 is set so that the other seal protruding piece 24 is separated from the standby protruding wall 22.

  Here, in the glass door 13 provided with the sealing protrusions 24, 24 on the seal member 25, when the sealing protrusions 24, 24 are reversed from the bow shape to the reverse bow shape, the initial motion resistance of the glass door 13 reaches the peak value. become. That is, in this embodiment, the “resistance peak position” that is the position of the glass door 13 when the seal protrusion 24 is inverted from the bow shape to the reverse bow shape, and the seal protrusion 24 is separated from the standby protrusion wall 22. Between the “seal separation position”, which is the position of the glass door 13 when performing, the “assist end position”, which is the position of the glass door 13 when the assist by the pressing portion 38 ends, is arranged.

  This completes the description of the configuration of the assist handle 30 of the present embodiment. With this configuration, in the assist handle 30 of this embodiment, the pressing stroke of the pressing portion 38 is set so that the assist end position is arranged between the resistance peak position and the seal separation position. The pressing stroke of the pressing portion 38 is smaller than the above. As a result, the assist handle 30 becomes compact in the width direction, so that it does not protrude from the door toe side to the door bottom side, and it is not necessary to stack the components in the thickness direction of the glass door 13, so it is compact in the thickness direction. As shown in FIG. 1, it is possible to bring the door 29 close to the glass door 13. Further, because the assist stroke is ended after the peak value of the opening operation resistance of the glass door 13 is lowered by the assist force by the setting of the above-described pressing stroke, excessive assist is reduced as in the conventional case, and the opening at the end of the assist is performed. A steep increase in the operating resistance can be suppressed, and the initial resistance can be gradually brought close to the steady value of the opening operating resistance.

[Second Embodiment]
Hereinafter, a second embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 8, a sliding assist handle 40 different from the assist handle 30 of the first embodiment is attached to the door rod 18 of each glass door 13 in the opening / closing port 10 of the present embodiment. . These assist handles 40 are shown as a whole in FIG. 9, and like the assist handle 30 of the first embodiment, the handle portion 45 and the pressing portion 48 are slid on the base portion 41 fixed to the door-end rod 18. Be prepared for possible.

  The base portion 41 is covered with a resin base cover 42 on the outside. As shown in FIG. 10, the base cover 42 has a pair of flat rectangular hood portions 42T and 42T projecting from the upper and lower end portions of the flat box-shaped main body 42S extending in the vertical direction to the side opposite to the door rod 18. It has a structure. The flat rectangular hood portions 42T and 42T are disposed on the door end side from the center in the width direction of the flat box-shaped main body 42S. Moreover, the substantially whole surface which faced the door bottom side among each flat square food | hood parts 42T is the insertion / extraction opening 42K.

  The handle portion 45 has a handle portion 46 that is substantially half the width of the flat box-shaped main body 42S and has the same length as the flat box-shaped main body 42S in the vertical direction, and the door tips from both upper and lower ends of the handle portion 46. The gate-shaped structure is provided with a pair of projecting protrusions 47 and 47 projecting toward the side. And these connection protrusion parts 47 and 47 are inserted / extracted in the insertion / extraction opening 42K, 42K of flat rectangular hood part 42T, 42T, and the assist handle 40 slides in the opening / closing direction of the glass door 13. As shown in FIG.

  Here, at one end side of the linear motion stroke of the assist handle 40, as shown in the left part of FIG. 10, the connection protrusions 47, 47 are almost entirely inserted into the flat rectangular hood portions 42T, 42T, and Of the portion 46, the side surface on the door bottom side and the side surface on the door bottom side of the flat box-shaped main body 42S are flush with each other. On the other hand, at the other end of the linear motion stroke of the assist handle 40, as shown in the right part of FIG. 10, the connection protrusions 47, 47 are substantially entirely exposed to the outside of the flat rectangular hoods 42T, 42T. The whole part 46 will be in the state which protruded from the flat box-shaped main body 42S to the door butt side.

  As shown in FIG. 9, a finger hooking groove 46 </ b> M is formed in a portion of the handle 46 that is sandwiched between the connecting protrusions 47 and 47. Further, as shown in FIG. 13, the surface of the handle 46 opposite to the door toe 18 is rounded and bulged so as to gradually move away from the door toe 18 from both ends in the vertical direction toward the center. The shape is out.

  As shown in FIG. 11, a pair of symmetrical rotation levers 50 and 50 are provided inside the base portion 41. The pair of symmetrical rotation levers 50, 50 extend in the vertical direction inside the base portion 41 and are arranged symmetrically in the vertical direction. The pair of symmetrical rotation levers 50 are rotatably supported by a pair of lever rotation support shafts 42N and 42N that are formed near the center in the vertical direction of the base portion 41 and arranged symmetrically. . Further, gears 50G and 50G are provided at the distal ends of the pair of symmetric rotation levers 50 and 50, respectively, and the gears 50G and 50G are engaged with each other to contrast the pair of symmetric rotation levers 50 and 50. It is designed to rotate.

  A long hole 50 </ b> L extending in the rotational radius direction of the symmetric rotation lever 50 is formed at the base end portion of each symmetric rotation lever 50 opposite to the distal end portion having the gear 50 </ b> G. A pair of handle connection pins 45P and 45P protruding from both connection protrusions 47 and 47 of the handle portion 45 are inserted into the long holes 50L and 50L of the symmetrical rotation levers 50 and 50, respectively. As a result, when the handle portion 45 is slid, the pair of symmetrical rotation levers 50, 50 rotate symmetrically. Further, as described above, since the symmetric rotation levers 50 and 50 cannot rotate asymmetrically due to the engagement of the gears 50G and 50G, the handle portion 45 is tilted by being coupled to the symmetric rotation levers 50 and 50. Slide to move in a regulated manner.

  As shown in FIG. 15A, the handle connecting pin 45P has a washer 45W screwed to a portion penetrating the long hole 50L. Further, a base portion 45D having a stepped diameter is formed on the base end portion side of the handle connecting pin 45P, and the elongated hole 50L in the symmetrical rotation lever 50 is formed between the base portion 45D and the washer 45W. The edge is sandwiched. Further, as shown in FIG. 14, in the flat box-shaped main body 42S of the base cover 42, the pedestal portions 45D and 45D are placed on the portion where the handle portion 45 is overlapped when the handle portion 45 is slid to the door bottom side. Guide grooves 42G and 42G for guiding are formed. The rotation of the handle portion 45 is also restricted by the guides of these guide grooves 42G and 42G, and the handle portion 45 slides so as to move smoothly in parallel.

  As shown in FIG. 13, the opening on the side of the door rod 18 in the flat box-shaped main body 42 </ b> S of the base cover 42 is closed by a bottom lid metal plate 53. As shown in FIG. 11, a pair of base mounting holes 53A and 53A are formed at both upper and lower ends of the bottom lid metal plate 53. As shown in FIG. The pair of base mounting holes 53A and 53A face the flat rectangular hood portions 42T and 42T (see FIG. 9) in the thickness direction of the base cover 42. Further, as shown in FIG. 9, the base cover 42 includes caps 42B and 42B that are separable from portions constituting the pair of flat rectangular hood portions 42T and 42T. Then, the caps 42B and 42B are removed to expose the base mounting holes 53A and 53A, and the base portion 41 is fixed to the door rod 18 with screws (not shown) inserted through the base mounting holes 53A and 53A. Further, a flange portion 53B (see FIG. 15) that is bent toward the base portion 41 is formed at the door bottom side end portion of the bottom lid metal plate 53.

  As shown in FIG. 13, each lever rotation support shaft 42 </ b> N that rotatably supports each symmetrical rotation lever 50 described above is formed from the inner surface of the base cover 42 facing the bottom cover metal plate 53 from the bottom cover metal plate. Projecting toward 53. The base end portion of each lever rotation support shaft 42N is provided with a pedestal portion 42M having a stepped diameter, and a torsion coil spring 51 is attached thereto. As shown in FIG. 11, a pair of stopper protrusions 52, 52 are formed on the inner surface of the base cover 42 at positions closer to the ends in the vertical direction than the pair of lever rotation support shafts 42N. One end of each torsion coil spring 51 is locked to the stopper projection 52, while the other end of the torsion coil spring 51 is locked to the symmetrical rotation lever 50. And the lever tip coupling | bond part meshed | engaged with the gears 50G and 50G among the symmetrical rotation levers 50 and 50 is urged | biased by the elastic force of each torsion coil spring 51 toward the door end side.

  As shown in FIG. 9, a rectangular hole 42 </ b> C is formed in the side surface of the base cover 42 on the door-end side, and from the upper and lower opening edges of the rectangular hole 42 </ b> C, as shown in FIG. The block guides 42Z and 42Z corresponding to the “guide portion” according to the present invention extend. The pressing portion 48 has a block shape and is guided by the block guides 42Z and 42Z, and linearly moves so as to protrude from the rectangular hole 42C as shown in FIG. 12 or to enter the rectangular hole 42C as shown in FIG. .

  The pressing portion 48 is connected to the lever tip coupling portion via the linear motion relay member 54. As shown in FIG. 15 (B), the direct acting relay member 54 has a structure in which a pair of opposing walls 54B and 54C are erected from both ends of the connecting wall 54A superimposed on the bottom lid metal plate 53. It has become. As shown in FIG. 11, a lever tip coupling portion of a pair of symmetrical rotating levers 50, 50 is disposed between the pair of opposing walls 54 </ b> B, 54 </ b> C, and one symmetrical rotating lever 50 is provided. The contact claw 50S is in contact with one opposing wall 54B, and the contact claw 50T provided in the other symmetrical rotation lever 50 is in contact with the other opposing wall 54C. In addition, a block holding portion 54D is formed on the opposing wall 54C on the door end side of the linear motion relay member 54 by bending the upper and lower ends thereof at right angles to the door end side, and the block holding portion 54D has a block-like shape. The pressing part 48 is clamped. With the above configuration, when the handle portion 45 is pulled toward the door bottom side with respect to the base portion 41, the pressing portion 48 protrudes from the base portion 41 toward the door tip side.

  Now, in the assist handle 40 of the present embodiment, at the rear end position of the linear movement stroke of the pressing portion 48, the pressing portion 48 is brought into contact with the symmetrical rotation lever 50 and the stopper projection 52 as shown in FIG. Positioned. On the other hand, at the front end position of the linear motion stroke of the pressing portion 48, the pressing portion 48 is positioned by the pedestal portion 45D shown in FIG. 14 contacting the guide groove 42G. As in the first embodiment, also in the assist handle 40, the pressing stroke of the pressing portion 48 is set so that the assist end position is arranged between the resistance peak position of the glass door 13 and the seal separation position. ing. Thereby, there exists an effect similar to 1st Embodiment.

[Third Embodiment]
Hereinafter, a third embodiment of the present invention will be described with reference to FIGS. In the assist handle 40V of the present embodiment, the point at which the symmetrical rotation levers 50V and 50V are pin-coupled and the outer corners of the handle 46 and the connecting projections 47 and 47 of the handle 45V are rounded. This is different from the second embodiment. Specifically, as shown in FIG. 16, U-shaped grooves 50Y and 50Y are formed at the tip ends of both symmetrical rotation levers 50V and 50V, and a common connecting pin 61 is formed between the U-shaped grooves 50Y and 50Y. It is provided in a penetrating state. And the one end part of the connection pin 61 is couple | bonded with the pin support plate 60 extended back from the press part 48, as shown in FIG. As a result, the assist handle 40V, like the assist handle 40 of the above-described embodiment, causes the symmetrical rotation levers 50V and 50V to rotate symmetrically so that the pressing portion 48 moves directly (see FIGS. 16 and 17). Since other configurations are the same as those of the second embodiment, the same parts as those of the second embodiment are denoted by the same reference numerals, and redundant description is omitted.

[Fourth Embodiment]
Hereinafter, a fourth embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 20, the base portion 71 of the assist handle 70 of the present embodiment has a pair of first base protrusions 73, 73 from the upper and lower ends of the connecting portion 72 extending in the vertical direction to the door end side. A pair of second base protrusions 74 and 74 are provided to protrude from the upper and lower ends of the connecting portion 72 to the indoor side. The handle portion 75 extends in the vertical direction, and the handle portion 75 is disposed between the second base protrusions 74 and 74. And the handle | steering-wheel part 75 can be rotated centering | focusing on the rotation center axis | shaft arrange | positioned in the cross | intersection part of each 1st base protrusion 73 and each 2nd base protrusion 74, and extended in the up-down direction.

  As shown in FIG. 22 (A), the middle portion of the handle portion 75 in the longitudinal direction protrudes so as to be slightly inclined toward the door butt side as it moves away from the door head rod 18 from the center of rotation, and on the way to the door tip side. It has a substantially hook shape that is folded back. Further, when viewed from the rotational axis direction of the handle portion 75, when the assist handle 70 is not used, the entire handle portion 75 overlaps the second base protrusion 74 and the surface of the handle portion 75 on the side away from the door rod 18. However, it is flush with the surface of the second base protrusion 74 away from the door rod 18.

  A portion of the base portion 71 that is addressed to the door rod 18 is covered with a bottom cover plate 77 made of sheet metal. Further, the base portion 71 other than the bottom lid plate 77 is a base portion main body 71H made of resin, and the bottom lid plate 77 is screwed to the base portion main body 71H.

  As shown in FIG. 21, approximately prismatic pressing portions 78, 78 are accommodated inside the first base protrusions 73 so as to be linearly movable in the opening / closing direction of the glass door 13. In the pressing portion 78, as shown in FIG. 22A, a spring accommodating groove 78A is formed on the surface opposite to the first base protrusion 73. Further, a spring receiving piece 71S is formed to protrude from the base portion main body 71H toward the spring accommodating groove 78A. The spring receiving piece 71S is located at the end of the spring receiving groove 78A on the door end side when the assist handle 70 is not used. The compression coil spring 79 is accommodated between the end surface on the door butt side of the spring accommodation groove 78A and the spring receiving piece 71S, and the pressing portion 78 is urged toward the door butt side by the elastic force of the compression coil spring 79. Yes.

  A pair of handle base end sliding contact portions 75K and 75K projecting from the center of rotation toward the bottom cover plate 77 side and abutting against the door end side end surface of each pressing portion 78 are provided at both upper and lower ends of the handle portion 75. Is provided. Then, when the handle portion 75 is rotated to the door bottom side, the handle base end sliding contact portions 75K and 75K resist the compression coil spring 79 while being in sliding contact with the pressing portions 78 and 78, as shown in FIG. Then, the pressing portion 78 is pushed out from the base portion 71 to the door end side.

  Further, at the rear end position of the linear motion stroke of the pressing portion 78, as shown in FIG. 22A, the handle base end sliding contact portion 75K and the inner surface of the base portion 71 (reference numeral 71N in FIG. 22A) are in contact with each other. The pressing portion 78 is positioned by the contact. On the other hand, at the front end position of the linear motion stroke of the pressing portion 78, as shown in FIG. 22 (B), the pressing portion is brought into contact with the outer surface of the base portion 71 (reference numeral 71M in FIG. 22 (B)). 78 is positioned. As in the first and second embodiments, in the assist handle 70, as shown in FIG. 19, the glass door 13 is closed and the pressing portion 78 is disposed at the rear end position of the linear motion stroke. Thus, the end surface of the pressing portion 78 is disposed so as to face the inner surface 10H of the opening / closing port 10 with a gap of a predetermined dimension, and assists between the resistance peak position of the glass door 13 and the seal separation position. The pressing stroke of the pressing portion 78 is set so that the end position is arranged. Thereby, there exists an effect similar to 1st-3rd embodiment.

  In addition, this invention is not limited to the said 1st-4th embodiment, In the range which does not deviate from a summary, it can change and implement variously. For example, in the above-described embodiment, an example in which the seal member 25 includes the pair of seal protrusions 24 and 24 has been described. However, the present invention is not limited to this, and the seal member 25 includes one seal protrusion and three The present invention can also be applied to those provided above. Furthermore, the seal protrusion is not limited to the fin shape, and can be applied to a brush shape or a tube shape, for example.

[Example]
Aluminum for windows which is manufactured as an assist handle 30, 40, 70 having the same structure as that of the first, second and fourth embodiments described above and is a distribution product having the same structure as the glass door 13 of the first embodiment described above. Attached to the sash. Here, in the aluminum sash used in the example, the resistance peak position is at a position where the glass door 13 is opened 3.9 [mm] from the closed position, and the seal separation position is 7.5 [from the closed position. mm] was in an open position. On the other hand, in all of the assist handles 30, 40, 70, the assist end position is set to a position where the glass door 13 is opened 5 mm from the closed position, and the pressing portions 38, 48, In order to set the clearance between the end surface of 78 and the inner surface 10H of the opening / closing port 10 to 1 [mm], the linear motion strokes of the pressing portions 38, 48, and 78 were set to 6 [mm]. Then, the assist handles 30, 40, and 70 were operated and the operation resistance at that time was measured. As a result, the initial resistance of the glass door 13 did not exceed the steady value when the glass door 13 was opened. In addition, it was possible to open the glass door 13 comfortably or more comfortably than the conventional assist handle having the same assist ratio (amplification rate of handle operating force, also referred to as lever ratio). Accordingly, it was confirmed that it is sufficient to set the assist handle pressing stroke so that the glass door 13 is positioned at the assist end position between the resistance peak position and the seal separation position.

10 Opening / closing opening 10H Inner side 13 Glass door (paper shoji)
18 Tokachi 22 Standing bump (seal close contact part)
24 Seal protrusion 25 Seal member 30, 40, 40V, 70 Assist handle 31, 41, 71 Base part 35, 45, 75 Handle part 38, 48, 78 Press part 39, 51 Torsion coil spring (biasing spring)
47 Coupling protrusion 50, 50V Symmetrical rotation lever 50G Gear (Lever tip coupling part)
50L long hole 54 linear motion relay member 54A connecting wall 54B, 54C opposing wall 60 pin support plate 61 connecting pin 72 connecting portion 75K handle base end sliding contact portion 78A spring accommodating groove 79 compression coil spring (biasing spring)

Claims (5)

A shoji door opening / closing mechanism provided with a seal member at one or both of the shoji and the opening / closing door that is opened / closed by the shoji door to prevent a draft, and a base portion attached to a door toe of the shoji, The handle portion and the pressing portion are assembled in a movable state, and when the shoji is in the closed position, when the handle portion is pulled toward the door bottom side with respect to the base portion, the pressing portion moves to the door end side. In the assist handle capable of pressing the inner surface of the opening and closing and reducing the initial movement resistance of the shoji,
The initial movement resistance has a peak value when the assist handle is not used between the seal separation position and the closing position of the shoji when the seal member is separated from the seal contact portion that is in close contact with the closing position of the shoji. There is a resistance peak position that becomes, and between the resistance peak position and the seal separation position, an assist end position where the pressing portion is separated from the inner surface of the opening / closing opening is disposed. An assist handle, wherein a pressing stroke of the pressing portion with respect to a side surface is set. A pair of door-facing surfaces facing each other in the thickness direction of the shoji when the shoji is in the closed position are provided on the vertical side of the shoji door and the opening / closing opening of the shoji. The seal member is provided with a seal protrusion that protrudes from one of the door-facing surfaces and has a tip closely contacting the other door-facing surface,
The seal projecting piece has a bowed shape such that when the shoji is in the closed position, the distal end is located on one side of the shoji opening and closing direction from the base end, and the shoji is closed. It is configured to reverse to a reverse bow-like shape that warps to the opposite side when passing through the resistance peak position from a position,
2. The pressing stroke is set such that a position before the seal projecting piece is completely separated from the seal contact portion is the assist end position after the seal projecting piece is inverted into the inverted bow shape. The assist handle described in 1. The handle portion has a lever structure that extends in the vertical direction and is rotatably supported by the base portion at a position near its lower end, and is rotatable in a plane parallel to the indoor surface of the shoji,
A guide portion that is formed on the base portion and guides the pressing portion so as to be capable of linear movement in the opening / closing direction of the shoji,
It has a long hole formed in one of the lower end part of the handle part and the pressing part, and a pin formed in the other and connected to the long hole, and interlocked with the rotation of the handle part. A pin long hole coupling mechanism for directly moving the pressing portion;
The assist handle according to claim 1, further comprising an urging spring that urges the pressing portion toward the door bottom side of the shoji. The handle portion has a portal structure in which a pair of connecting protrusions extend from the upper and lower ends of the handle portion extending in the vertical direction to the door end side,
A pair extending in the vertical direction inside the base portion and arranged symmetrically in the vertical direction and rotatably supported by the base portion in the vertical middle portion so as to be rotatable in a plane parallel to the indoor surface of the shoji. A symmetrical pivot lever,
A lever coupling mechanism that couples the tip portions of the pair of symmetric rotation levers at an intermediate position in the vertical direction of the base portion so that the pair of symmetric rotation levers rotate in conjunction with each other;
The handle portion includes a long hole formed in one of the base end portion of each of the symmetric rotation levers and each of the connection protrusions, and a pin formed in the other and connected to the long hole. A pin long hole coupling mechanism for rotating the pair of symmetrical rotation levers in conjunction with the linear movement of
The lever having a pair of opposing walls sandwiching a lever tip coupling portion formed by coupling the tip portions of the pair of symmetrical rotating levers in the opening / closing direction of the shoji and integrated with the pressing portion A linear relay member that moves linearly in the opening / closing direction of the shoji together with the tip coupling portion;
The assist handle according to claim 1, further comprising an urging spring that urges the pressing portion toward the door bottom side of the shoji. The handle portion has a structure that extends vertically and protrudes from the base portion to the side opposite to the shoji, and is connected to the base portion so as to be rotatable about a rotation shaft that extends in the vertical direction.
The pressing portions are supported in a pair so as to be movable in the opening / closing direction of the shoji at both upper and lower ends of the base portion, and the pair of pressing portions are urged toward the door bottom of the shoji A pair of biasing springs,
A pair of handle base end slides that protrude toward the shoji side from the pivot shaft at both ends in the vertical direction of the handle portion and abut on the end surface on the door butt side of the pair of pressing portions so as to be slidable. The assist handle according to claim 1, further comprising a contact portion.

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