JP3767936B2 - Door-type dropping bar device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a dropping bar device for doors such as doors and gates that are generally used.
[0002]
[Prior art]
Conventionally, this type of door dropping device eliminates a gap between the dropping rod and a floor recess or a receiving member built in a box that engages the lower tip of the dropping rod. It is an object of the present invention to prevent backlash in the opening / closing direction. In order to solve such problems of the invention, an example is disclosed in, for example, Japanese Utility Model Publication No. 6-85876.
[0003]
The drop bar device for doors disclosed in this publication is characterized by a drop bar receiver, which has a cylindrical engaging portion fixedly embedded in a recess on the floor surface. And an adjustment cylindrical body that fits in a tightly rotatable manner in the case body and that has a drop-rod insertion hole formed in an eccentric portion of the upper surface having a flange.
[0004]
However, in the above configuration, although the rattling of the doors can be prevented, after the case body is fixedly embedded in the recess of the floor surface, the adjustment cylindrical body must be rotated and adjusted. Also, even if the adjustment cylinder is rotated, if the case body is not embedded in a specific position in the recess on the floor surface, if the doors close to the desired position, the drop bar will be inserted into the adjustment cylinder. There was a problem of not getting into the hole.
[0005]
[Problems to be solved by the invention]
In view of the drawbacks of the prior art, the problem of the present invention is that if the box is dropped and set in the recess of the floor surface in consideration of the relationship with the position where the bar falls, the position of the slide holder itself is subsequently changed. There is no need to make fine adjustments, and the drop bar is securely held by the slide holder, so that the drop bar (doors) can be prevented from rattling in the open / close direction, and the drop bar can be dropped against the slide holder. An object of the present invention is to provide a drop bar device for doors which can facilitate or ensure the engagement of the rods and which has a small number of components.
[0006]
[Means for Solving the Problems]
The door drop bar device of the present invention is fixedly provided in the recess 10 of the floor surface F and has a box body 3 having a stopper portion 32 on the inner wall, and is mounted in the box body. A sliding holding body 4 for preventing rattling in the opening / closing direction of the dropping bar 2 urged in the horizontal direction so as to stop at the stopper portion by the spring force of the spring 43 and having an engagement notch portion 41 at one end portion, and a lower tip in part, by pressing the press pressure gradient slope 24 and subsequent insertion in the initial time of entering into the opening 34 of the box that is wider in accordance reach the cutting edge surface in contact with the upper edge of the sliding retention member pressure As the inclined surface 24 begins to descend, the sliding holder 4 slightly recedes against the spring force of the spring 43, and the left and right engaged surfaces 25, 25 of the pressing pressure inclined surface 24 are the engagement notches. Inserting drop bars that engage the left and right locking surfaces 45 of the portion 41 Comprises a body 22, the drop rod insertion body 22 is characterized in that it is guided and supported in a direction perpendicular to the supporting bracket 1.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the embodiment of the present invention shown in the drawings will be described in relation to the frame column side of the gate and the recess side of the floor surface.
[0008]
In FIG. 1 to FIG. 8, X is a first embodiment of a door drop bar device to which the present invention is applied. The drop bar device X for doors such as doors and gates that are generally used is basically a drop bar 2 that is slidably guided in the vertical direction by a support bar 1 of the drop bar and a floor surface F. It is comprised from the box 3 fixed to the recessed part (including the recessed part of a door frame) 10, and the sliding holding body 4 which is provided in this box and engages with the said dropping bar 2. . Therefore, these constituent members will be described sequentially.
[0009]
First, as shown in FIG. 1, the drop-rod support fitting 1 is fixed to the gate frame column 5 via a plurality of fixing tools 6. The form of the support metal fitting 1 includes a hollow support saddle type having a guide fitting space for a drop bar in the vertical direction, a U-shaped plate type having a guide frame for a drop bar and guide holes in the upper and lower horizontal portions, and the like. There is. In this embodiment, an L-shaped plate type is used as shown in FIGS.
[0010]
That is, reference numeral 7 denotes a guide vertical long hole formed in a recess near the upper end of the vertical plate, and the operation knob 23 of the drop bar 2 is engaged with the vertical long hole 7 in a protruding state. On the other hand, 8 is a guide hole formed in a horizontal plate connected to the vertical plate, and an insertion main body 22 provided at the lower end of the dropping bar 2 is fitted in the guide hole 8. Note that screw holes 9 and 9 for the fixing tool 6 are formed in the vertical plate and the horizontal plate of the support fitting 1.
[0011]
Next, the dropping bar 2 has the operation knob 23 described above and moves up and down along the vertical plate of the support metal 1, and is fixedly provided at the lower end portion of the slide plate 21 and has an insertion end portion. And the aforementioned insertion body 22 having a pressing pressure inclined surface 24 on one side. As shown in FIG. 4, the insertion main body 22 has a trapezoidal cross section, and the pressing pressure inclined surface 24 also has a trapezoidal inclined surface. Accordingly, the insertion end portion of the insertion main body 22 further has a locked surface 25 that is symmetrically positioned on the left and right with respect to the pressing pressure inclined surface 24 in relation to the slide holding body 4 described later.
25 and a narrow engaged surface 26 located at the center of these locking surfaces 25, 25. Therefore, the pressing pressure inclined surface 24 becomes wider as it reaches the foremost surface as shown in FIGS. 3 and 4, for example.
[0012]
Next, the box body 3 is formed of a metal or a synthetic resin material, and is fixedly embedded in a recess 10 (including the lower frame of the sash frame body) 10 via a fixing tool 11 such as an adhesive or a screw. The In this embodiment, the box body 3 covers a box body 31 having a plurality of stopper portions 32 protruding from appropriate portions of the inner wall surface and the box body 31 so as to be positioned substantially flush with the floor F. And a cover plate 33 having an opening 34 for the drop bar insertion body 22.
[0013]
Next, the sliding holding body 4 is formed of a hard synthetic resin material into a rectangular parallelepiped or rectangular parallelepiped block shape, and in this embodiment, slides in the horizontal direction while being directly or indirectly guided by the inner wall 3a of the box 3. Thus, an engagement notch 41 is formed in the vertical direction at one end (tip) of the sliding holder 4 facing the insertion body 22 of the drop bar 2. The engagement notch 41 is the same when viewed from the plane side, but when viewed from the bottom surface side of the box body 31 as shown in FIG. It has a trapezoidal or mountain shape so that the surface 26 can be received.
[0014]
Therefore, at one end portion of the sliding holding body 4, a vertical surface 44 that comes into contact with the pressing pressure inclined surface 24 of the dropping bar 2, and is connected to the vertical surface in the angular direction, and the locked surface 25 of the dropping bar 2. , 25, which are symmetrical to each other, and an engaging surface 46 which is located at the center of these engaging surfaces and contacts or faces the engaged surface 26 of the dropping bar 2. ing.
[0015]
On the other hand, a fitting hole 42 that supports one end of the spring 43 is formed at the other end (rear end) of the sliding holder 4. The other end of the spring 43 abuts against the inner wall of the box body 31 and urges the vertical surface 44 of the sliding holding body 4 to abut against the stopper portion 32.
[0016]
In the above configuration, first, the box body 31 is fitted into the recess 10 of the floor surface F, and the sliding holder 4 is incorporated into the box body 31 together with the spring 43. At this time, depending on the size of the recess 10, the box body 31 is set in the recess 10 in consideration of the relationship between the drop bar 2 and the drop position of the insertion body 22. When the sliding holding body 4 is incorporated in the box body 31, it is urged in one direction by the spring 43 and stops at a predetermined position by the stopper portion 32 of the box body 31. Therefore, there is no need to finely adjust the position of the sliding holder 4 itself. Then, after the setting position of the box body 31 is determined, the lid 33 is fixed to the box body 31 and the floor surface F. If the size of the recess 10 in the floor surface F is set in advance so as to receive the box body 31 having a predetermined size, the box body 31 may be simply fitted into the recess 10.
[0017]
Therefore, a case where the operation knob 23 of the drop bar 2 is operated to drop the drop bar 2 will be described. When the lower end of the insertion main body 22 of the drop bar 2 enters the opening 34 of the box 3, first, at the initial stage, as shown in FIG. Line contact is made with the upper edge of the vertical surface 44. When the insertion main body 22 starts to descend while sliding in this line contact state, the sliding holding body 4 slightly recedes against the spring force of the spring 43 and then slides as the insertion main body 22 descends. As soon as the upper end edge of the vertical surface 44 of the holding body 4 is shifted from the pressing inclined surface 24 of the main body 22 over the left and right ridgelines to the locked surfaces 25, 25, as shown in FIG. The insertion main body 22 of the drop bar 2 is engaged with the “spat” in the engagement notch 41 of the holding body 4. As a result, the engaged surface 26 of the insertion body 22 abuts on the engagement surface 46 of the sliding holder 4, and the left and right locked surfaces 25, 25 of the insertion body 22 correspond to the corresponding engagement of the sliding holder 4. It abuts against the stop surfaces 45, 45, respectively. As a result, the insertion main body 22 is held by the sliding holding body 4 and, as a result, rattling in the opening / closing direction of the drop bar 2 (doors) is prevented.
[0018]
【Example】
First, in the first example described in the embodiment of the invention, the insertion body 22 has a trapezoidal cross section as shown in FIG. 4, and the pressing inclined surface 24 also has a trapezoidal inclined surface. ing. However, the cross section of the insertion main body 22 may be triangular, and when the entire insertion main body 22 is generally used as a rod type, the cross-sectional shape on the half side of the outer peripheral surface of the lower tip is trapezoidal or triangular. If it is good. Moreover, the pressing pressure inclined surface 24 formed in the insertion main body 22 may have a triangular shape as long as its leading edge is wide and becomes narrower as it climbs upward.
[0019]
Further, regarding the sliding contact relationship between the sliding holding body 4 and the insertion main body 22 of the drop bar 2, the box 3 is dropped and the set position is not accurately set in the recess 10 of the floor F due to the drop position of the bar 2. Even in this case, the upper edge is curved so that the widest leading edge of the pressure inclined surface 24 of the insertion body 22 can come into surface contact with the upper edge of the vertical surface 44 of the sliding holder 4 to some extent. May be formed on an inclined surface with a small radius or an area.
[0020]
Furthermore, the sliding relationship between the box body 31 and the sliding holder 4 is such that when the sliding holder 4 is guided in the horizontal direction, for example, an engaging protrusion is formed on the sliding holder 4 while the box body A horizontal groove or a horizontal guide notch for engaging the engaging protrusion may be formed on 31.
[0021]
Next, FIGS. 9 to 11 show a dropping bar device X1 according to another embodiment of the present invention. In the description of this embodiment, the same parts as those in the first embodiment of the present invention are denoted by the same reference numerals, and redundant description is omitted.
[0022]
In the second embodiment of the drop bar device X1, the main difference from the first embodiment is a box body 31A of the box 3A. The box main body 31A is provided with a protruding storage portion 36 so that the drop bar insertion main body 22A can penetrate deeply into the box main body 31A. As shown in FIG. 9, the protruding storage portion 36 is connected to the one end portion of the bottom surface 37 of the box body 31 </ b> A in the shape of a fingertip in section, but does not necessarily have a fingertip shape in cross section. The point is that the drop bar insertion main body 22A described in the first embodiment may have a cross-sectional shape that can penetrate deeply into the box main body 31A without hindrance.
[0023]
When the protruding storage portion 36 is formed in the box main body 31A in this way, the insertion main body 22A falls deeply into the box main body 31A. Therefore, the insertion main body 22A side that engages with the engagement notch 41A formed in the sliding holding body 4A. The engagement area of the to-be-latched surfaces 25, 25 is increased, and the dropping bar is securely held by the retaining surfaces 45, 45 of the sliding holder 4A. Therefore, it is possible to more reliably prevent the dropping bar from rattling.
[0024]
【The invention's effect】
As is clear from the above description, the present invention has the following effects.
(1) When the box body is dropped and set in the recess in consideration of the relationship with the position where the bar falls, there is no need to finely adjust the position of the sliding holder itself. Therefore, setting is easy.
(2) At the lower tip of the drop bar, there is a pressing pressure inclined surface that comes into contact with the upper edge of the slide holder when it first enters the opening of the box, and the engagement notch portion of the slide holder due to the subsequent drop. The left and right locking surfaces are respectively engaged with the locked surfaces, so that the dropping bar is held in a state of being sandwiched between the sliding holders. As a result, the dropping bar (doors) is opened and closed in the opening / closing direction. The rattle is prevented.
(3) The number of constituent parts is small.
(4) The invention according to claim 2 is directed to the engagement notch portion of the sliding holder after the widest leading edge surface of the pressing pressure inclined surface of the dropping bar comes into contact with the upper edge of the vertical surface of the sliding holder. It is possible to facilitate the engagement of the drop bar.
(5) In the invention according to claim 3, when the box is set in the recess of the floor surface, the lower tip of the dropping bar is a guide. The box can be made even smaller.
(6) In the invention according to claim 4, since the height dimension of the engagement notch portion of the sliding holding body increases, the angle of the pressing pressure inclined surface of the dropping bar is set as desired, thereby sliding The sliding amount of the holding body can be increased, and the holding force of the sliding holding body against the dropping bar can be ensured.
(7) The invention according to claim 5 can more reliably prevent rattling of the dropping bar.
[Brief description of the drawings]
FIGS. 1 to 8 are explanatory views showing a first embodiment of the present invention, and FIGS. 9 to 11 are explanatory views showing a second embodiment of the present invention.
FIG. 1 is a longitudinal explanatory view showing an example of an embodiment of the present invention.
FIG. 2 is a perspective view of components of the first embodiment of the present invention.
FIG. 3 is an exploded perspective view of the present invention.
FIG. 4 is a perspective view of a main part.
FIG. 5 is a schematic cross-sectional explanatory view of a main part.
FIG. 6 is an explanatory view when partially cut away from the lower side of the box.
FIG. 7 is an explanatory view of the initial stage when the lower end of the dropping bar enters the opening of the box (particularly, the wide front end surface of the pressing pressure inclined surface of the dropping bar is the upper edge of the vertical surface of the sliding holder; Shows contact).
FIG. 8 is an explanatory view showing a state in which the lower end portion of the dropping bar is engaged with the sliding holder.
FIG. 9 is a schematic cross-sectional explanatory view of a main part of a second embodiment.
FIG. 10 is an exploded perspective view of a second embodiment.
FIG. 11 is an explanatory view showing a state in which the lower end portion of the dropping bar is engaged with the sliding holder.
[Explanation of symbols]
X, X1 ... Dropping bar device, F ... Floor surface, 1 ... Support bracket, 5 ... Gate column, 10 ... Recess, 2 ... Dropping bar, 21 ... Slide plate, 22, 22A ... Insert body, 23 ... Operation Picking, 24 ... Pressing pressure inclined surface, 25 ... Locked surface, 26 ... Engaged surface, 3, 3A ... Box body, 31 ... Box body, 32 ... Stopper part, 33 ... Cover plate, 4, 4A ... Sliding 41, 41A ... engagement notch, 42 ... fitting hole, 43 ... spring, 44 ... vertical surface, 45 ... engagement surface, 46 ... engagement surface, 36 ... projection storage, 37 ... bottom surface .

Claims (5)

A box 3 that is fixedly provided in the recess 10 of the floor F and has a stopper portion 32 on the inner wall, and is housed in the box, and is stopped at the stopper portion by the spring force of the spring 43 inside the box. The sliding rod 4 for preventing rattling in the opening / closing direction of the dropping bar 2 that is urged in the horizontal direction and has the engagement notch 41 at one end, and the opening 34 of the box body is inserted into the lower tip. In the initial stage, as the pressing pressure inclined surface 24 starts to descend due to the pressing pressure inclined surface 24 that becomes wider as it reaches the most advanced surface so as to come into contact with the upper end edge of the sliding holding body, and the subsequent insertion , The sliding holding body 4 is slightly retracted against the spring force of the spring 43, and the left and right locked surfaces 25, 25 of the pressing pressure inclined surface 24 are engaged with the left and right locking surfaces 45 of the engagement notch 41. It includes a plug body 22 of the drop rods case, the drop rod Inclusive body 22 dropped rod device of the door such that is guided and supported in a direction perpendicular to the supporting bracket 1.   2. A door drop bar device according to claim 1, wherein the pressure-pressing inclined surface 24 of the drop bar 2 is a trapezoidal inclined surface.   2. A door drop rod device according to claim 1, wherein the drop rod 2 has an insertion body 22 at a lower tip portion, and the insertion body has a trapezoidal cross section.   3. A door drop bar device according to claim 1, wherein the sliding holding body is formed in a rectangular parallelepiped or rectangular parallelepiped block shape.   The door drop bar device according to claim 1, wherein the box body 3A is provided with a protruding storage portion 36 so that the drop bar can be deeply inserted into the box body 3A.

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