JPH0658099U - Door drop rod device - Google Patents

Abstract

(57) [Summary] [Purpose] The drop bar does not get in the way and looks good.
It is therefore an object of the present invention to provide a door drop rod device that is easy to operate and has excellent operability without fear of loss due to extraction or the like. [Structure] A drop rod 22 is provided in a vertical frame member 7 of a door so as to be vertically movable, and a vertical hole is formed in the vertical frame member 7 so that a knob 23 of the drop rod 22 projects to the outside of the vertical frame member 7. 31 is formed, and a leaf spring 24 is provided below the vertical frame member 7 to lock the drop rod 22 in the upward movement position so that the drop rod 22 can be engaged and disengaged.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a door drop rod device used for a retractable gate and various other doors.

[0002]

[Prior art]

 Drop bar devices are widely used to lock the door body in a closed state in various doors such as an expandable gate and a foldable door. In the conventional drop rod device, for example, as described in Japanese Utility Model Laid-Open No. 58-33675, a cylindrical holding member is attached to the outside of the vertical frame member of the door body, and the drop rod is moved up and down on this holding member. It is freely inserted, and the holding member is formed with a vertically elongated hole so that the knob of the drop rod projects to the outside, and an engaging portion that locks the knob at the upper moving position of the drop rod. .

[0003]

[Problems to be solved by the device]

 In the conventional drop rod device, the holding member, the drop rod, etc. are attached to the outside of the vertical frame member in an exposed state, so the drop rod device becomes an obstacle or looks bad from the outside. At the same time, there was a problem that the drop rod was intentionally pulled out or accidentally pulled out and lost.

Further, in order to hold the drop rod in the upward movement position, a concave or groove-shaped engaging portion is formed in the holding member in addition to the elongated hole in the vertical direction, and the shaft of the drop rod is moved in the upward movement position. Since the knob is rotated around the center to engage and disengage from the engaging part, it is necessary to rotate the knob around the axis of the drop rod in addition to moving it up and down. There was also the problem that it was troublesome.

In view of the above conventional problems, the present invention provides a door that is not obstructive to the drop bar, has a good appearance, is not likely to be lost due to extraction, and is easy to operate and has excellent operability. An object is to provide a drop rod device.

[0006]

[Means for Solving the Problems]

 According to the present invention, a drop rod 22 is provided in a vertical frame member 7 of a door so as to be vertically movable, and a knob 23 of the drop rod 22 is vertically attached to the vertical frame member 7 so as to project to the outside of the vertical frame member 7. A long hole 31 is formed, and a leaf spring 24 is provided below the vertical frame member 7 to releasably lock the drop rod 22 in the upward movement position.

[0007]

[Action]

 Since the drop rod 22 is vertically movable in the vertical frame member 7 of the door, the drop rod 22 is operated up and down by the knob 23 protruding to the outside from the long hole 31 of the vertical frame member 7. The bar 22 does not get in the way of the outside and has a good appearance, and there is no fear that the bar 22 will be lost due to pulling out or the like.

When the knob 23 is moved upward along the long hole 31, the drop rod 22 in the vertical frame member 7 rises, and the leaf spring 24 prevents the drop rod 22 from inadvertently dropping at the upward movement position. Is locked by. Further, when the drop rod 22 is moved downward by the knob 23 against the leaf spring 24, the locked state of the drop rod 22 by the leaf spring 24 is released. Therefore, the operation of the drop rod 22 is easy.

[0009]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIGS. 6 and 7 show an expandable gate as an embodiment of the present invention, in which 1 is a suspension side strut, 2 is a door stop side strut, and each of these columns 1 and 2 is formed in an inverted U shape. It is erected on the ground 3 at the left and right ends of the entrance of the garage.

Reference numeral 4 denotes a telescopic door main body, which is provided between the suspension base side pillar 1 and the door stop side pillar 2 so as to open and close the opening. The door body 4 includes a suspension-side end frame 5 and a door-stop side end frame 6 arranged in the up-down direction, and a large number of them arranged in the up-down direction at equal intervals between the both end frames 5 and 6. The long vertical frame member 7 and the short vertical frame member 8 and the pantograph mechanism 9 for connecting the vertical frame members 7 and 8 to each other so as to be expandable and contractible.

The end frames 5 and 6 and the vertical frame members 7 and 8 have an inverted U-shape having substantially the same width as that of the columns 1 and 2, and the suspension-side end frame 5 is hinged to the suspension-side column 1. The door contact side end frame 6 has a handle 11 for opening and closing operations on both sides of the door body 4 in the front-rear direction, and is connected to the door body 4 via a 10 through a vertical axis. It has a locking device for locking the strut 2 on the door stop side in the closed state.

The long vertical frame members 7 and the short vertical frame members 8 are alternately arranged so that the long vertical frame members 7 are located at both ends in the expansion and contraction direction of the door body 4, and the long vertical frame members 7 at both ends thereof are arranged. Are integrally formed on the hanging end side end frame 5 and the door stop side end frame 6, respectively, and the long vertical frame member 7 at the center and the long vertical frame member 7 integrated at the door stop side end frame 6 have the door main body 4 Caster wheels 12 are attached to both front and rear sides.

The pantograph mechanism 9 has a large number of crosspieces so as to intersect each long vertical frame member 7 at three vertical positions and intersect each short vertical frame member 8 at two vertical positions. The members 13 and 14 are sequentially arranged in a slanting direction and are arranged next to each other in a cross shape, and are provided in inverted U-shaped vertical frame members 7 and 8.

The crosspieces 13 and 14 are flexibly pivotally connected by pivots 15 and 16 at intersections corresponding to the vertical frame members 7 and 8, respectively. Then, among the three upper and lower pivots 15 corresponding to the long vertical frame member 7, the central pivot shaft 15 is a fixing plate 18 fixed in a guide groove 17 of the long vertical frame member 7, as shown in FIG. Both ends are brought into contact with each other and fixed to the fixing plate 18 with rivets 19, and the pivots 15 on both the upper and lower sides are fitted in the guide grooves 17 of the long vertical frame member 7 through the sliding portions so as to be vertically movable and cannot be removed. ing. A spacer 20 is fitted on each pivot 15 between the long vertical frame member 7 and the crosspieces 13, 14.

Of the two pivots 16 corresponding to the short vertical frame member 8, the upper pivot 16 is fixed to the fixing plate in the guide groove in the short vertical frame member 8 in the same manner as the central pivot shaft 15. Further, the lower pivot 16 is vertically slidably fitted in a guide groove in the short vertical frame member 8 in a detachable manner like the pivots 15 on both the upper and lower sides. The upper ends of the vertical frame members 7 and 8 are aligned at substantially the same height when the door body 4 is contracted to the minimum length.

Reference numeral 21 denotes a drop rod device that locks the door body 4 in a closed state. From the long vertical frame member 7 at the center with the caster wheels 12, one short vertical frame member 8 is provided on the door-end side end frame 6 side. It is provided on the long vertical frame member 7 arranged.

As shown in FIGS. 1 to 5, the drop rod device 21 includes a round rod-shaped drop rod 22 vertically movably inserted in a long vertical frame member 7 on the inner side of the frontage, and the drop rod device 21. It is provided with a knob 23 for operating the rod 22 up and down, and a leaf spring 24 for releasably locking the dropping rod 22 in the upward movement position. The lower end of the dropping rod 22 is a rod dropping hole 25 on the ground 3 side. The door body 4 is locked by being inserted into and removed from the door.

As shown in FIGS. 3 to 5, the long vertical frame member 7 includes a partition wall portion 26 and a pair of vertically extending guide grooves 17 protruding inward from both ends in the width direction of the partition wall portion 26. Of the partition wall 26 and a semi-cylindrical portion 28 formed so as to be continuous with both ends of the partition wall portion 26 in the width direction, and the partition wall portion 26 and the semi-cylindrical portion 28 have inner surfaces facing each other. A pair of ribs 29, 30 are formed in the upper and lower directions. The fixing plate 18 is fixed to the guide groove 17 side of the partition wall portion 26, and the drop rod 22 is vertically slidably inserted between the pair of opposing ribs 29 and 30.

The knob 23 is rod-shaped, and its inner end side is fixed to the upper end portion of the drop rod 22 by screwing it in a direction substantially perpendicular to the drop rod 22, and the semi-cylindrical shape of the long vertical frame member 7. It is projected to the outside through a vertically elongated hole 31 formed in the portion 28.

The leaf spring 24 has a locking portion 32 that is bent and formed in a V shape on the lower side, and in a state where the locking portion 32 is projected below the lower end of the long vertical frame member 7, The upper side is inserted between the partition wall portion 26 and the fixing plate 18 and is fixed to the fixing plate 18 by the rivets 33. The fixing plate 18 is fixed to the partition wall portion 26 with a screw 34 penetrating the leaf spring 24.

In the free state, the engaging portion 32 side of the leaf spring 24 projects toward the drop rod 22 side, and when the drop rod 22 is moved up to the upper position within the range of the elongated hole 31, The lower end is engaged and locked so as not to drop accidentally, and is elastically deformed when the drop rod 22 is moved downward to retreat and separate from the lower end. The rod drop hole 25 is formed by a cylindrical body 35 buried in the ground 3.

Next, the operation of opening and closing the expandable gate will be described. In the open state, the door body 4 is in a state of being contracted to the minimum length. At this time, the drop rod 22 is pulled up to the upper moving position within the range of the long hole 31, and as shown in FIG. 4, the locking portion 32 of the leaf spring 24 engages with its lower end and carelessly takes place. It is held so as not to fall.

Therefore, when the door body 4 is closed, first, the handle 11 of the door stop side end frame 6 is grasped and pulled toward the door stop side strut 2 to extend the door body 4 from the contracted state. . Then, when the door main body 4 is extended until the door stop side end frame 6 comes into contact with the door stop side strut 2, the door stop side end frame 6 is locked by the locking device. Lock the drop rod 22 by lowering it.

In this case, when the knob 23 is moved downward in the direction indicated by the arrow a in FIGS. 1 and 2, the drop rod 22 presses the locking portion 32 of the leaf spring 24 against its elastic force. The engaging portion 32 side of the spring 24 is elastically deformed in the backward direction (indicated by the arrow b) as shown by the phantom line in FIG. 4 to separate from the lower end of the drop rod 22. Since the locked state of the drop rod 22 is released, the drop rod 22 descends while being guided by the ribs 29, 30 by moving the knob 23 downward in the direction of arrow a. Then, as shown in FIGS. 1 and 2, if the lower end of the dropping rod 22 is fitted into the rod dropping hole 25, the central portion of the door body 4 can be locked so as not to move in the front-rear direction.

When the door body 4 is opened, on the contrary, the drop rod 22 is pulled up to release the lock, and the door body 4 may be contracted after releasing the lock by the locking device.

When the drop rod 22 is pulled up, if the knob 23 is moved up along the long hole 31 in the direction opposite to the arrow a, the drop rod 22 rises and the lower end thereof comes out of the rod drop hole 25. Then, when the knob 23 is moved up to near the upper end of the long hole 31, the lower end of the dropping rod 22 reaches above the locking portion 32 of the leaf spring 24 and is locked as shown by the solid line in FIG. The elastic force causes the portion 32 to project to the lower end side of the drop rod 22 to lock the drop rod 22. Therefore, the drop rod 22 is held by the leaf spring 24 in the upward movement position, and thereafter, unless the knob 23 is operated, the drop rod 22 will not accidentally drop due to vibration or the like at the time of opening and closing.

According to such a configuration, since the dropping rod 22 is inside the semi-cylindrical portion 28 of the long vertical frame member 7, the dropping rod 22 does not interfere with the outside and is good in appearance. The appearance is good, and the drop rod 22 is not accidentally pulled out or lost after being accidentally pulled out.

Moreover, since the drop rod 22 is inside the long vertical frame member 7, it is possible to prevent corrosion of the drop rod 22 due to rainwater or the like. Further, the drop rod 22 is supported by four ribs 29, 30 facing each other in the long vertical frame member 7 so as to be slidable up and down, so that rattling in the long vertical frame member 7 can be reduced. The sliding resistance can be made as small as possible, and the dropping rod 22 can be a round rod or the like without being restricted by the cross-sectional shape of the long vertical frame member 7.

Further, since the drop rod 22 is locked at the upper moving position by the locking portion 32 of the leaf spring 24, the drop rod 22 can be engaged and disengaged simply by moving the knob 23 up and down, and the conventional knob The trouble of dropping the rod 23 and rotating it around the axis of the rod 22 to disengage the rod 22 is eliminated. Therefore, the operation of the drop rod 22 is extremely easy as compared with the conventional one, and the operability is significantly improved.

Although the locking portion 32 of the leaf spring 24 is projected downward from the lower end of the long vertical frame member 7 in the embodiment, the lower end portion of the partition wall portion 26 is cut by the width of the leaf spring 24. Alternatively, the locking portion 32 of the leaf spring 24 may be completely set within the long vertical frame member 7. Further, the engaging portion 32 of the leaf spring 24 can be engaged with the lower end of the drop rod 22, or can be formed with a recess at the lower end of the drop rod 22 and can be detachably engaged with the recess.

The vertical frame member on which the drop rod device 21 is to be provided is not limited to the long vertical frame member 7, but may be provided on the short vertical frame member 8. Further, in the embodiment, the example is adopted as a telescopic gate, but it can be also applied to a double door type door or a foldable door formed by hinge-joining a plurality of door units in a foldable manner. There is no end.

[0032]

[Effect of device]

 According to the present invention, the drop bar 22 is provided in the vertical frame member 7 of the door so as to be vertically movable, and the knob 23 of the drop bar 22 is vertically arranged on the vertical frame member 7 so as to project to the outside of the vertical frame member 7. The long hole 31 is formed in the vertical frame member 7, and the leaf spring 24 for locking the drop rod 22 in the upward movement position is provided at the lower part of the vertical frame member 7 so that the drop rod 7 does not interfere with the outside. In addition, the appearance is improved, corrosion of the drop rod 22 due to rainwater and the like can be prevented, and there is no fear of losing the drop rod 22 due to extraction or the like.

Moreover, since the drop rod 22 can be engaged with and disengaged from the leaf spring 24 simply by moving the knob 23 up and down along the long hole 31, the knob 23 can be moved around the axis of the drop rod 22 as in the conventional case. Since there is no need to rotate, the operation is extremely easy and the operability is significantly improved.

[Brief description of drawings]

FIG. 1 is a side view of a drop rod device according to an embodiment of the present invention.

FIG. 2 is a front view of a drop rod device according to an embodiment of the present invention.

FIG. 3 is a sectional view taken along the line AA of FIG.

FIG. 4 is a side sectional view of a drop rod device according to an embodiment of the present invention.

FIG. 5 is a bottom view of the drop rod device according to an embodiment of the present invention.

FIG. 6 is a front view of a telescopic gate showing an embodiment of the present invention.

FIG. 7 is a partially cutaway side view of a telescopic gate showing an embodiment of the present invention.

[Explanation of symbols]

 4 Door body 7 Long vertical frame material 22 Drop bar 23 Knob 24 Leaf spring 31 Long hole 32 Locking part

Claims (1)

[Scope of utility model registration request] 1. A drop rod (22) is provided in a vertical frame member (7) of a door so as to be vertically movable, and a knob (23) of the drop rod (22) projects to the outside of the vertical frame member (7). A vertical frame (7) is formed with an elongated hole (31) in the up-down direction, and a drop rod (22) is engaged with the lower part of the vertical frame (7) so that the drop rod (22) can be detachably engaged in the upward movement position. A door drop rod device characterized by having a spring (24).