Auxiliary door-opening apparatus
A technology for door openers and door closers, which is applied to door/window accessories, switches with braking devices, wing leaf parts, etc., which can solve the problems of obstruction, complexity, large-scale cost increase, etc., and prevent the appearance from deteriorating , Reduce the operating force and improve the operability
A technology for door openers and door closers, which is applied to door/window accessories, switches with braking devices, wing leaf parts, etc., which can solve the problems of obstruction, complexity, large-scale cost increase, etc., and prevent the appearance from deteriorating , Reduce the operating force and improve the operability
CN101305149AInactive Publication Date: 2008-11-12NHK SPRING CO LTD
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[0070] Hereinafter, embodiments of the present invention will be described in detail by illustrating the drawings.
[0071] Figure 1 to Figure 17 shows the structure and working state of the auxiliary door opening device according to the first embodiment of the present invention, figure 1 It is a front view of a door with an auxiliary door opening device viewed from the interior, figure 2 Yes figure 1 side view of image 3 Yes figure 1 The floor plan of Figure 4 is figure 2 A cross-sectional view of line A-A, Figure 5 is a cross-sectional view viewed from arrow B in FIG. 4 , Image 6 is a cross-sectional view viewed from the arrow C in Figure 4, and Figure 7 is Image 6 A cross-sectional view of the D-D line, Figure 8 It is an enlarged view of the E portion of FIG. 7 , and FIGS. 9 to 17 are explanatory views showing the operating state of the auxiliary door opening device.
[0072] like Figure 1 to Figure 3 As shown, the auxiliary door opening device 1 of this ...
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A door opening assisting device that has a simple structure not requiring a dedicated operation member for assisting opening of a door and whose operability and reliability when it operates in synchronous with door opening operation are enhanced. The door opening assisting device is constructed as follows. With opening and closing of the door, a passive member (20) connected to a door closer for rotatingly urging the door in the closing direction is rotated in the normal and reverse direction, and the rotation of the door closer causes transmission members (30, 31) to reciprocate in the direction corresponding to the opening and closing of the door.; In this process, the opening of the door causes an opening spring (51) to urge and move the transmission member (30) in the door opening direction, and after opening force is accumulated in the spring (51) by the movement of the transmission member (31), the spring (51) is locked with the opening force accumulated in it. In the construction above, when the passive member is rotated in a predetermined angle region in the initial stage of door opening operation, this causes the opening spring to exert opening force and also causes the spring to accumulate opening force and then to be locked with the opening force accumulated in it.
Description
technical field [0001] The present invention relates to an auxiliary door opening device which assists the operation force of opening a door and facilitates door opening. Background technique [0002] At present, in buildings with high airtightness such as apartments and buildings, a large force is required to open and close the door, which is a large burden for children and the elderly. Therefore, an auxiliary door opening device that assists in opening the door has been used. [0003] The structure of the existing auxiliary door opening device is: usually constituted separately from the door closer, and the power assist mechanism that assists when opening the door is installed on the door or the wall supporting the door, and the handle (or handle) used to open the door is rotated Operation, the power assist mechanism works, thereby reducing the force when opening the door (for example, refer to Patent Document 1). [0004] On the other hand, a door closer is disclosed in...
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Patent Timeline
12 Nov 2008
Publication
CN101305149A
- IPC
- E05F3/10
- CPC
- E05Y2800/113; E05Y2201/422; E05Y2900/132; E05F3/224; E05Y2400/3015
- Inventors
- 铃木健; 山室康一