JP6793487B2 - Joinery - Google Patents

Description

The present invention relates to fittings.

Non-Patent Document 1 discloses a door (joint) that suppresses a sudden movement of the door with a damper when the door (door body) is closed (closed operation state).

Page 11 "Sankyo Aluminum Residential Building Materials Interior General Catalog Wooderia VS / Storage Interior Doors / Indoor Sliding Doors / Closets / Movable Partitions 2015 → 2016" Catalog No. STJ1086B Sankyo Tateyama Co., Ltd. Sankyo Aluminum Co., Ltd. Published in May 2015

On the other hand, there has been a demand for fittings that can be reliably closed when the door is closed and can be reliably opened when the door is opened.

Therefore, an object of the present invention is to provide a fitting that can surely close the door body when closing the door body and can surely open the door body when opening the door body.

Invention of claim 1, a frame, a door body which is provided openably in a frame, and a closing aid provided between the frame and the door body, closing aid, base and base to The base has a sliding member provided so as to be slidable , and the base has one side end attached to the frame, and the sliding member slides the sliding part slidable in the hollow portion of the base and the one side end. It has an arm fixed to a moving part and the other side end attached to a door body, and the sliding part has a one-sided slider arranged at a distance from each other, a other-sided slider, and a tension spring. The tension spring has one end fixed to one side slider and the other side end fixed to the other side slider, and expands and contracts as the arm slides, and the door body is at a predetermined position on the closed side and a predetermined position on the open side. When it is in the intermediate position with, one side slider engages with one side of the sliding member, and the other side slider engages with the other side of the sliding member to hold it in the maximum extended state. when the door body came to closing side position closed, whereas it is disengaged from the one side of the side slider and the sliding member by one side end of the spring slides, the spring on the other side in squashed is intended to bias the door body to close side, when the door body came to open side position open, the other side of the spring out of engagement with the other side of the other side slider and the sliding member by the side edge slides, a joinery, characterized in that is to bias the door body to the open side shrinks to Banegaichi side in.

According to the first aspect of the present invention, when the door body is in the closed operating state, the tension spring contracts with the closed side as the base end to release the accumulated urging force and close the door body completely. When in the open operation state, the tension spring contracts with the open side as the base end to release the accumulated urging force and open the door body completely. Therefore, the urging force of the spring is used to close and open the door body. Can be done. Further, when the door body is in the intermediate position, the urging force of the tension spring does not act as a resistance when opening and closing the door body, so that the door body can be opened and closed with a light force.

It is a figure explaining the action of the tension spring and the damper when the door body is in the intermediate position between the closing operation state and the opening operation state in the fitting which concerns on the 1st Embodiment of this invention. It is a cross-sectional view of the fitting according to the 1st Embodiment of this invention, and is the figure which shows when the door body is in a fully closed state, a half open state, and a fully open state, respectively. FIG. 5 is an enlarged cross-sectional view showing the opening / closing assisting tool shown in FIG. It is a figure of the opening / closing assisting tool shown in FIG. 1, (a) is a fully closed state of a door body, (b) is a half open state of a door body, and (c) is a fully open state of a door body. In the first embodiment, it is a cross-sectional view showing the state of the opening / closing assisting tool from the half-open state to the fully closed state in (a) to (d) for each change with time. In the first embodiment, it is a cross-sectional view showing the state of the opening / closing assisting tool from the half-open state to the fully open state in (a) to (c) for each change with time. It is a front view which looked at the fitting which concerns on 1st Embodiment from the indoor side. It is a front view which looked at the fitting which concerns on 2nd Embodiment from the indoor side, (a) is the figure which shows the fully closed state of a door body, (b) is the figure which shows the fully open state of a house body.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. First, first embodiments of the present invention will be described with reference to FIGS. 1 to 7.
As shown in FIGS. 2 and 7, the fitting 1 according to the present embodiment is a door, and includes a frame 3, a door body 5, and an opening / closing assisting tool 7. The door body 5 is a door.
As shown in FIG. 7, the frame 3 has a hinge frame 9, a door butt frame 11, an upper frame 13, and a lower frame 15, and the door butt frame 11 is connected to the door body 5. A hinge 17 (see FIG. 2) is provided.
In the door body 5, the door tip stile 19, the door butt stile 21, the upper stile 23 and the lower stile 25 are assembled on the four circumferences of the glass 28, and the upper stile 23 and the lower stile 25 have the found dimensions of the door tip stile. It is a so-called slim stile that is smaller than 19 and Tojiri stile 21.
The opening / closing assisting tool 7 is attached between the upper frame 13 and the upper stile 23, and includes a base 27 and a sliding member 29 slidably provided with respect to the base 27. The base 27 is a hollow member, and the door tail side end (one side end) is attached to the upper frame 13 by a mounting bracket 31.
The sliding member 29 includes a sliding portion 35 (see FIG. 2) that can slide in the hollow of the base 27, and an arm 37 whose door end side end (other side end) is attached to the upper stile 23 by a mounting bracket 33. I have.
The base 27 and the sliding member 29 are arranged so as to fit within the found dimensions of the upper stile 23.

As shown in FIG. 3, inside the hollow of the base 27, a closing trigger 36 is provided on the door tail side (one side) and an open trigger 38 is provided on the door end side (the other side).
In the sliding member 29, the sliding portion 35 is provided with a spring 39, a damper 41, a closed slider 43, an open slider 45, a closed latch 47, and an open latch 49. The closed slider 43 and the open slider 45 are arranged at intervals in the longitudinal direction of the base 27, and are independently slidable in the base 27.
The spring 39 is a tension spring, one end of which is fixed to the closed slider 43 and the other end of which is fixed to the open slider 45.
The damper 41 is a hydraulic damper, and is composed of a damper main body 41a and a piston 41b. The piston 41b reciprocates with respect to the damper main body 41a, and the reciprocating movement of the piston 41b is buffered by the damper main body 41a. doing. The damper body 41a is a damper mounting component 40 that is slidably mounted on the base 27 in the longitudinal direction thereof. The door tail side end of the piston 41b is provided so as to be in contact with the closing slider 43 via the cam 51. At the end of the piston 41b on the door tail side, the contact surface 42 with the cam 51 has an arc shape.

The closed latch 47 is rotatably supported by the closed slider 43 by the support shaft 47a, and the engaging shaft 47b is engaged with the closed latch guide groove 55 of the closed latch guide member 53. The closed latch guide groove 55 is continuously provided with a vertical groove portion 55a for holding the closed latch 47 in an inclined state (see FIG. 4B) and a horizontal groove portion 55b for sliding the closed latch 47 in the horizontal direction. There is. The closing latch guide member 53 is provided at the end of the sliding portion 35 on the door end side, and is slidable with respect to the closing slider 43.
On the other hand, the open latch 49 is rotatably supported by the open slider 45 by the support shaft 49a, and the engaging shaft 49b is provided in the open latch guide groove 59 provided at the door end side end portion 57 of the sliding portion 35. Are engaged. The open latch guide groove 59 is continuously provided with a vertical groove portion 59a that holds the open latch 49 in an inclined state and a horizontal groove portion 59b that allows the open latch 49 to slide in the horizontal direction.
The cam 51 is rotatably supported by the closed slider 43 by the support shaft 51a, and the engaging shaft 51b is engaged with the cam guide groove 61 provided in the closed latch guide member 53. The cam guide groove 61 is continuously provided with an inclined groove portion 61a that guides the cam 51 to an inclined position and a horizontal groove portion 61b that allows the cam 51 to slide in the horizontal direction. Further, the piston side surface of the cam 51 is formed on an arc surface that substantially coincides with the cam contact surface 42 of the piston 41b, and the engaging shaft 51b of the cam 51 moves from the horizontal groove portion 61b of the cam guide groove 61 to the inclined groove portion 61a. At this time, the piston 41b stops relative to the closed slider 43, the cam 51 tilts so as not to receive the resistance of the damper 41, and the piston 41b and the closed slider 43 come into contact with each other.

Next, the opening / closing operation of the fittings according to the present embodiment will be described. First, the fully opened state of the door body 5 will be described.
As shown in FIGS. 2 and 4C, when the door body 5 is in the fully open state, the arm 37 is in the state of being most pulled out from the base 27 and located on the door end side, and the open latch 49 is in the open trigger (open trigger (). It is engaged with the base end) 38 on the open side. On the other hand, in the closed latch 47, the engaging shaft 47b is located in the vertical groove portion 55a of the closed latch guide groove 55, and the closed latch 47 is fixed to the closed slider 43. The spring 39 having one end fixed to the closed slider 43 and the other end fixed to the open slider 45 is in the most contracted state. In this fully open state, a cam 51 is interposed between the closed slider 43 fixing one end of the spring 39 and the piston 41b of the damper 41.

When the door body 5 is closed from the fully open state shown in FIG. 2 toward the predetermined position M2 on the open side, the arm 37 is pushed into the base 27 from the state shown in FIG. 4 (c) in the opening / closing assisting tool 7. ( Move from the right side to the left side in FIG. 4 (c)). Along with this, the engaging shaft 49b of the open latch 49 moves relatively from the left side to the right side of the horizontal groove portion 59b of the open latch guide groove 59.
When the door body 5 reaches the front of the predetermined position M2 on the open side, the engagement shaft 49b of the open latch 49 is located at the intersection position with the vertical groove portion 59a of the guide groove 59, and the door body 5 is further closed at that position. , The spring 39 is stretched.
Then, when the door body 5 reaches the predetermined position M2 on the open side, the spring 39 is stretched to the maximum, and in this state, the engaging shaft 49b of the open latch 49 moves to the vertical groove portion 59a, and the open latch 49 is shown in FIG. As shown in (b), the open latch 49 is held in the open slider 45 in the tilted state after being tilted and disengaged from the open trigger 38. As a result, the opening / closing assisting tool 7 is in the half-open state shown in FIG. 4 (b).

Further, when the door body 5 is closed from the open side predetermined position M2 in the half-open state shown in FIG. 2 to just before the closed side predetermined position M1, the opening / closing assisting tool 7 is as shown in FIG. 4 (b). The spring 39 is held in a pulled state (maximum extended state) between the closed slider 43 having one end fixed and the open slider 45 having the other end fixed, and the arm 37 remains in that state. Is pushed into the base 27 (moves from the right side to the left side in FIG. 4B).

Next, with reference to FIG. 5, the closing / closing (fully closed) operation from the closed side predetermined position M1 in the half-open state will be described. As shown in FIG. 2, the door body 5 moves in the region R1 from the predetermined position M1 on the closed side to the fully closed state.
FIG. 5A is a state of the closed side predetermined position M1 shown in FIG. In this state, the closed latch 47 is close to the closed trigger 36 and is in a position immediately before engaging. The spring 39 is held in a state of being extended to the maximum, and is in a state of accumulating urging force. Further, the engaging shaft 47b of the closed latch 47 is located in the vertical groove portion 55a of the closed latch guide groove 55.
Note that S1 shown in FIG. 5A is a distance during which the damper 41 acts to absorb the impact when the door body 5 is closed, and in the present embodiment, S1 is 25 mm.
As shown in FIG. 5B, when the door body 5 is further closed, the closing latch 47 engages with the closing trigger (base end on the closing side) 36, and the urging force of the spring 39 causes the base 27 to engage. On the other hand, since the sliding portion 35 is attracted to the door tail side, an auxiliary action when closing the door body works. Further, the engaging shaft 47b of the closed latch 47 moves from the vertical groove portion 55a of the closed latch guide groove 55 to the horizontal groove portion 55b, and by moving the horizontal groove portion 55b, the closed latch 47 is relative to the closed latch guide member 53. Move to the target.
Further, the spring 39 releases the urging force from the maximum extended state and begins to contract, but the damper 41 acts on the urging force of the spring 39 to buffer the spring 39 from suddenly releasing the urging force. Therefore, the spring 39 contracts slowly. In addition, the action of the damper 41 buffers the movement of the door body 5 and absorbs a sudden impact such as fanning.
Further, the cam 51 moves the horizontal groove portion 61b of the cam guide groove 61 together with the closing slider 43 in a state of being in contact with the cam contact surface 42 of the piston 41b.
From the half-open state of FIG. 5 (a) to the state immediately before closing (M3 of FIG. 2) of FIG. 5 (c), after the arm 37 moves to the left side in the figure and the close latch 47 engages with the close trigger 36. The closing slider 43 relatively pushes the piston 41b from the left side to the right side in the drawing, and the piston 41 contracts with respect to the damper body 41a.

As shown in FIG. 5C, in the state immediately before closing (M3 in FIG. 2), the engaging shaft 51b of the cam 51 is at the intersection of the horizontal groove portion 61b of the cam guide groove 61 with the inclined groove portion 61a. At this position, the cam 51 is still interposed between the piston 41b and the closed slider 43, and the piston 41b and the closed slider 43 are held at a predetermined interval. On the other hand, although the spring 39 is in the contracted state, the contraction allowance of S2 still remains until it is fully contracted (until the closed state). S2 is about 5 mm.
On the other hand, in the damper 41, the piston 41b contracts S1 (see FIG. 5A) with respect to the damper body 41a, but is in a contracted state with a slight contraction margin left, and the cam 51 holds the state. The damper 41 does not act as described below in S2 minutes from the state to the closed state shown in FIG. 5 (d).
Next, as shown in FIGS. 5 (c) to 5 (d), in the cam 51, the engaging shaft 51b of the cam 51 moves the inclined groove portion 61a of the cam guide groove 61, so that the cam 51 is inclined. Then, the piston 41b can move until it comes into contact with the closed slider 43.
When the closing door body 5 passes the state immediately before closing (M3 in FIG. 2), the cam 51 moves the inclined groove portion 61a, the spring 39 contracts while releasing the urging force, and the arm 37 contracts to one side. By pulling the door body 5 toward the frame 3, the closing slider 43 abuts on the piston 41b and closes the door body 5 to the frame 3 when the spring 39 contracts by S2.
As described above, at the distance S2 during the closing operation of FIGS. 5 (c) to 5 (d), only the spring 39 acts, and the resistance of the damper 41 does not act.

Next, the fully closed state of the door body 5 will be described.
As shown in FIGS. 2 and 4A, when the door body 5 is in the fully closed state (closed state), the sliding member 29 is in the position where the sliding member 29 is most pushed into the base 27 in the opening / closing assisting tool 7. is there. As shown in FIG. 4A, in this state, the closed latch 47 is engaged with the closed trigger 36, and the engaging shaft 47b of the closed latch 47 is located in the horizontal groove portion 55b of the closed latch guide groove 55. There is. In the damper 41, the piston 41b is in a retracted position with respect to the damper body 41a. In the open latch 49, the engaging shaft 49b is located in the vertical groove portion 59a of the latch guide groove 59, and the open latch 49 is in an inclined state.

Next, the operation of opening the door body 5 from the fully closed state will be described.
When the door body 5 is opened from the fully closed state of the door body 5 (see FIG. 4A) and opened to the angle (region R1 shown in FIG. 2) of the closed side predetermined position M1 in the half-open state shown in FIG. In the fully closed state shown in FIG. 4A, the arm 37 of the opening / closing assisting tool 7 is pulled out to the door end side (the other side). As a result, the sliding portion 35 moves in the base 27 toward the door end while the closed latch 47 is engaged with the closed trigger 36, and the engaging shaft 47b of the closed latch 47 is horizontal to the closed latch guide groove 55. After moving the groove portion 55b, as shown in FIG. 4B, it enters the vertical groove portion 55a and the closing latch 47 is held with respect to the closing slider 43.
On the other hand, as shown in FIG. 4A, when the door body 5 is opened from the fully closed state of the door body 5, the closing slider 43 is in a state of being engaged with the closing trigger 36 via the closing latch 47. The open slider 45 moves to the door end side together with the damper body 41a, and the spring 39 fixed to the closed slider 43 at one end and the open slider 45 at the other end is stretched, and the engaging shaft 47b of the closed latch 47 is pulled. After moving the horizontal groove portion 55b, it moves to the vertical groove portion 55a, and as shown in FIG. 4B, the closing latch 47 is tilted and disengaged from the closing trigger 36, and the closing slider 43 is held at that position. Then, it becomes a half-open state. That is, in the half-open state shown in FIG. 4B, the spring 39 is held in the most stretched state, and the spring 39 is in a state in which the urging force is accumulated. In the damper 41, the piston 41b is held in the most stretched state with respect to the damper main body 41a, so that the damper 41 does not act. In this half-open state, the sliding portion 35 is slidable in the base 27.
The angle (region R1) from the fully closed state shown in FIG. 4A to the predetermined closed side position M1 (see FIG. 2) in the half-opened state shown in FIG. 4B is 0 ° to 20 °.
The half-open state shown in FIG. 4B is a state in the region R3 (intermediate position in FIG. 1) between the closed-side predetermined position M1 and the open-side predetermined position M2 shown in FIG. 2, and is in the region R3 (intermediate in FIG. 1). The angle of position) is 20 ° to 70 °.
In the operation of opening the door body 5, in the half-open state (intermediate position in FIG. 1) from the closed side predetermined position M1 to the open side predetermined position M2 shown in FIG. 2, the arm 37 is pulled out from the base 27 in FIG. 4 (b). Move in the direction (right side in the figure).

Next, with reference to FIG. 6, the operation of opening and closing (fully open) from the half-open state between the closed-side predetermined position M1 and the open-side predetermined position M2 shown in FIG. 2 will be described. As shown in FIG. 2, the door body 5 moves in the regions R3 and R2 from the half-open state to the fully open state.
FIG. 6A is a half-open state before the predetermined position M2 on the open side shown in FIG. In this state, the open latch 49 is close to the open trigger 38 and is in a position immediately before engaging. The spring 39 is held in a state of being extended to the maximum, and is in a state of accumulating urging force. Further, the engaging shaft 49b of the open latch 49 is located in the vertical groove portion 59a of the open latch guide groove 59 and is in an inclined state.
As shown in FIG. 6B, when the door body 5 is further opened, the open latch 49 engages with the open trigger 38, the spring 39 begins to contract with the open side as the base end, and the door body 5 is opened. Start to urge in the direction. That is, since the sliding portion 35 is attracted to the door end side with respect to the base 27 by the urging force of the spring 39, an auxiliary action when opening the door body 5 works. Further, the engaging shaft 49b of the open latch 49 moves from the vertical groove portion 59a of the open latch guide groove 59 to the horizontal groove portion 59b, and by moving the horizontal groove portion 59b, the open latch 49 acts with respect to the open latch guide member 57. Move relatively.
Further, the spring 39 releases the urging force from the maximum extended state and begins to contract, but the damper 41 acts on the urging force of the spring 39 to buffer the spring 39 from suddenly releasing the urging force. Therefore, the spring 39 contracts slowly. In addition, the action of the damper 41 buffers the movement of the door body 5 and absorbs the impact of sudden closing.
Then, as shown in FIG. 6C, when the spring 39 is fully contracted, the door body 5 is fully opened.
From the half-open state of FIG. 6 (a) to the fully open state of FIG. 6 (c), the arm 37 moves to the right side (the other side) in the figure, and after the open latch 49 engages with the open trigger 38, it is relative. A force is applied by the open slider 45 to push the damper body 41a from the right side to the left side in the drawing, and the piston 41 contracts with respect to the damper body 41a. Then, in the fully open state shown in FIG. 6C, the spring 39 and the damper 41 are in the most contracted state.
The angle between the predetermined position M2 on the open side in the half-open state shown in FIG. 2 and the fully open state (region R2) is 70 ° to 90 °. In the opening operation during this period, since the damper 41 acts on the opening operation of the door body 5, it is possible to buffer the sudden opening operation and release the urging force accumulated by the spring 39, so that the opening force is released. Can be reduced.

The action and effect of this embodiment will be described.
As shown in FIG. 1, the spring (tensile spring) 39 holds the maximum extended state at an intermediate position between the closed side predetermined position M1 and the open side predetermined position M2 of the door body 5. Between the closed side predetermined position M1 and the fully closed position (fully closed state), the body 5 contracts with the closed side as the base end to urge the door body 5 to close, and the door body 5 is placed at the open side predetermined position. From M2 to the fully open position (fully open state), the door body 5 is urged to open by contracting with the open side as the base end.
Therefore, when the door body 5 is in the closed operating state, the spring 39 contracts with the closed side as the base end to release the accumulated urging force to close the door body 5 completely, and when the door body 5 is in the open operating state. Since the spring 39 contracts with the open side as the base end to release the accumulated urging force and open the door body 5, the urging force of the spring 39 can be used to close and open the door body 5.
Further, when the door body 5 is in the intermediate position, the urging force of the tension spring 39 does not act as a resistance when opening and closing the door body 5, so that the door body 5 can be opened and closed with a light force.

Further, the door body 5 is from the open side predetermined position M2 to the fully open state (FIGS. 6 (a) to (c)) and from the closed side predetermined position M1 to immediately before the fully closed state (FIGS. 5 (a) to (c)). In each state, the damper 41 buffers the movement of the sliding member 29, so that the impact during the closing operation and the opening operation of the door body 5 can be buffered.
Further, since the damper 41 suppresses the movement of the door body 5 against the urging force of the spring 39, the sudden movement of the door body 5 by the spring 39 is suppressed, and the door body 5 can be slowly opened and closed.

As shown in FIG. 2, the spring 39 is held by a stretchable sliding portion (holding body) 35 provided between the frame 3 and the door body 5, and expands and contracts as the sliding portion 35 expands and contracts. When the door body 5 moves from the intermediate position to the predetermined position M1 on the closing side, one end of the sliding portion 35 engages with the closing trigger (base end on the closing side) 36 of the base 27, and the door body 5 becomes When moving from the intermediate position to the predetermined position M2 on the open side, the other end of the sliding portion 35 engages with the open trigger (base end on the open side) 38, and the sliding portion 35 is in the disengaged state at the intermediate position. is there. As a result, the urging direction of the spring 39 can be easily switched by one spring 39, and the number of parts can be reduced.
Since the opening / closing auxiliary tool 7 of the fitting 1 is attached to the door body 5 by the mounting bracket 33, the hinge 17 and the hinge 17 The force applied to the door tail frame (frame) 11 is small, and it is possible to reduce the causes of defects such as damage in that portion.

As shown in FIGS. 5A to 5D and the closed side predetermined position M1 in FIG. 1 in the fully closed state, the door body 5 is opened and closed from the closed side predetermined position M1 in the half-open state until it is completely closed (fully closed). In the auxiliary tool 7, the urging force accumulated by the spring 39 is released to draw the door body 5 to the frame 3, and the state M3 immediately before the closing of FIGS. 5 (c) and 5 (c) and 1 is shown in the fully closed state. As described above, immediately before the door body 5 is completely closed, the damper 41 does not act and only the urging force of the spring 39 acts to pull the door body 5 toward the frame 3, so that the door body 5 can be reliably closed. ..
In other words, in the present embodiment, the sliding portion 35 has the spring 39 and the damper 41 that opposes the spring 39, and when the door body 5 is closed, the spring 39 and the damper 41 contract at the same time. The door body 5 is attracted to the frame 3 by contracting only the spring 39 immediately before the closing.

Further, as shown in FIG. 4B, the spring 39 and the damper 41 do not act between the closed-side predetermined position M1 and the open-side predetermined position M2 in the half-open state of FIG. 2, so that the door body 5 is subjected to a light force. Can be opened and closed.
As shown in FIGS. 2 and 3, the opening / closing assisting tool 7 is composed of a base 27 having a hollow portion and a sliding member 29 in which the sliding portion 35 slides in the hollow portion of the base 27. Since only the arm 37 protrudes from the base 27 and the spring 39 and the damper 41 are provided on the sliding portion 35 in the base 27, the internal structure of the sliding portion 35 cannot be seen from the outside, so that the appearance is good. Further, as shown in FIG. 7, in the opening / closing auxiliary tool 7, one end of the base 27 is attached to the upper frame 13, the other end of the sliding member 29 is attached to the upper stile 23, and the upper stile 23 and the upper frame 13 are attached. The design is good because it is configured to fit within the found dimensions of.
As shown in FIGS. 4 (c) and 2 in the fully open state, when the door body 5 tries to move to the closed side, the damper 41 acts to maintain the open state and absorb the impact, so that the door body 5 is in the open state. It is possible to prevent the door body 5 from being fanned.

Other embodiments of the present invention will be described below, but in the embodiments described below, parts that exhibit the same effects as those of the above-described first embodiment are designated by the same reference numerals. The detailed description of the part will be omitted, and the following description will mainly explain the differences from the first embodiment.
FIG. 8 shows the fitting 1 according to the second embodiment of the present invention. The fitting 1 according to the second embodiment is a sliding door, and the door body 5 is a sliding door shoji. The opening / closing assist tool 7 attaches the base 27 together with the door end side end (one side end) in the longitudinal direction of the upper frame 13, and the sliding member 29 attaches the mating side end (the other side end) to the door body 5. It is attached to the upper stile 23 located on the meeting side.
As shown in FIG. 8A, in the fully closed state of the door body 5, the door end frame 19 of the door body 5 is closed in a state of being attracted to the door end frame (frame) 9, and the sliding member 29 The arm 37 penetrates deeply into the base 27, and the opening / closing assisting tool 7 is in the state shown in FIG. 4A. On the other hand, as shown in FIG. 8B, in the fully open state of the door body 5, the arm 37 is in a state of being pulled out from the base 27, and the opening / closing assisting tool 7 is in the state shown in FIG. 4C. Note that FIG. 8B shows the symbols of the positions corresponding to the predetermined positions M1 and M2 of the door body 5 and the state immediately before closing M3 in the first embodiment, respectively.
Then, as shown in FIG. 4B, the spring 39 accumulates an urging force between the closed-side predetermined position M1 and the open-side predetermined position M2 in which the door body 5 shown in FIG. 8A is in a half-open state. At the same time, the damper 41 does not work.
The fitting (sliding door) 1 according to the second embodiment can also have the same effect as the fitting (door) 1 according to the first embodiment.

The present invention is not limited to the above-described embodiment, and can be variously modified without departing from the gist thereof.
For example, the damper 41 is not limited to the oil damper, but may be a gas damper, and the type of the damper 41 is not limited.
In the first embodiment, the base 27 of the opening / closing assisting tool 7 is attached not only to the upper frame 13 but also to the upper part of the door butt frame 11, and the other end of the sliding member 29 is not limited to the upper frame 23 but the door tip frame. It may be attached to the upper part of 19.
In the second embodiment, the opening / closing assisting tool 7 may be arranged on the indoor side finding surface of the upper frame 13.

1 Joinery 3 Frame 5 House 39 Spring (tensile spring)
36 Closed trigger (base end on closed side)
38 Open trigger (base end on the open side)
M1 Closed side predetermined position M2 Open side predetermined position

Claims (1)

It is equipped with a frame, a door body that can be opened and closed freely on the frame, and an opening and closing aid provided between the frame and the door body.
The opening / closing assisting tool has a base and a sliding member provided so as to be slidable with respect to the base .
The base has one end attached to the frame,
The sliding member has a sliding portion that can slide in the hollow portion of the base, and an arm that has one end fixed to the sliding portion and the other end attached to the door body.
The sliding portion has a one-sided slider, a other-sided slider, and a tension spring arranged at intervals from each other.
The tension spring has one end fixed to one side slider and the other side end fixed to the other side slider, and expands and contracts as the arm slides, and the door body is at a predetermined position on the closed side and a predetermined position on the open side. When it is in the intermediate position with, one side slider engages with one side of the sliding member, and the other side slider engages with the other side of the sliding member to hold it in the maximum extended state. when the door body came to closing side position closed, whereas it is disengaged from the one side of the side slider and the sliding member by one side end of the spring slides, the spring on the other side in squashed is intended to bias the door body to close side, when the door body came to open side position open, the other side of the spring out of engagement with the other side of the other side slider and the sliding member by the side edge slides, fittings, characterized in that is to bias the door body shrinks to Banegaichi side in the opening direction.

Images