JP4583651B2 - Opening and closing device for opening and closing body - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an open holding device for holding an open / close body such as an open / close door in an open state.
[0002]
[Prior art]
In order to prevent the open door from being blocked by wind etc. when carrying luggage, etc., so-called door contact, a hook member fixed on the floor is artificially hung on a ring attached below the door Is used.
[0003]
[Problems to be solved by the invention]
However, when furniture, office machines, etc. are installed near the open door, it is necessary to insert an arm into a narrow space between the furniture and the door and to hang and remove the hook member. Or it was necessary to move furniture etc., and it was very troublesome.
In addition, for a disabled person or an elderly person, when an unreasonable posture is required, the hook member may not be hung.
An object of the present invention is to provide an opening / closing device for an opening / closing body that can hold and release the opening / closing body by a simple operation.
[0004]
[Means for Solving the Problems]
The present invention has the following configuration in order to solve the above problems.
That is, the present invention includes an engaged member fixed to the opening / closing body, and an engagement mechanism portion that is disposed at a predetermined position to hold the opening / closing body to be engaged with the engaged member. An opening and closing device for an opening / closing body, wherein the engagement mechanism portion is pivotally supported so as to be vertically swingable about a swing shaft, and the opening / closing body of the engaged member is opened to a hook portion at a distal end. An engagement member that is swung upward by contact by operation and falls by its own weight to engage the hook portion with the engaged member; and from the engaged member to be engaged via the opening / closing body Upon receiving a pressing force, the engagement release means for swinging the engagement member upward to release the engagement of the hook portion, and allowing the swing of the engagement member upward and dropping due to its own weight And unidirectional fall delay means for delaying .
[0005]
<Action>
When the opening / closing body is opened and the engaged member is brought into contact with the hook portion of the engaging member, an upward pressing force is applied to the hook member by the contact force, and the engaging member swings upward about the swing axis. Move. Thereafter, since the engaging member falls due to its own weight, the hook portion automatically engages with the engaged member. Therefore, the opening / closing body can be kept open.
On the other hand, when a pressing force is applied to the engagement release means by the engaged member engaged by pushing the open / closed body in the open state, the engagement release means swings the engagement member upward, so that the hook portion is covered. The engagement with the engaging member is released.
The swinging engagement member falls due to its own weight, but this fall is delayed by the unidirectional drop delay means, so that the opening / closing body is separated from the engagement mechanism portion before the hook portion is engaged again, so that Release the engagement.
As the fall delay means, an oil-type rotary damper may be used to brake the rotation of the swing shaft, thereby delaying the fall due to the weight of the engaging member .
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 2 is a front view of the open holding device according to the present invention.
In FIG. 2, 1 denotes a door, and an L-shaped metal fitting 2 as an engaged member is fixed below the door 1. The L-shaped metal fitting 2 has an engaged portion 2a bent upward, and an abutment surface 2b is formed on the outer surface of the engaged portion 2a. An engagement mechanism portion 10 is fixed on the floor surface 3 via a base 4.
[0007]
FIG. 1 is a cross-sectional view of the engagement mechanism portion 10. The engagement mechanism unit 10 includes a casing 11 that is detachably mounted on the base 4. An upper portion of the casing 11 is opened, and an engagement member 12 is disposed in the opening. A base portion 12A of the engaging member 12 is fixed to the swing shaft 13, and both ends of the swing shaft 13 are pivotally supported by the casing 11. The engaging member 12 has a hook-shaped hook portion 12B at its tip. The hook portion 12B protrudes from the casing 11 in the horizontal direction.
[0008]
The substantially central portion of the engaging member 12 is placed and supported on the partition plate 11a inside the casing 11, and is held in a horizontal state. The partition plate 11a forms the accommodating part 14 with the lower partition plate 11b.
A retracting rod 15 is disposed in the accommodating portion 14. The retracting rod 15 has a pressing portion 15a protruding from the accommodating portion 14 at the tip, a flange portion 15b for preventing one end of the coil spring 16 from being prevented from coming out of the accommodating portion 14, and a spring 16 attached to the retracting rod 15 from the accommodating portion 14. It consists of a rod portion 15c that protrudes inward and extends. The bulging portion 17 formed on the lower surface of the engaging member 12 faces the rod portion 15c.
[0009]
A pinion 18 is fixed to the swing shaft 13. The other pinion 19 is engaged with the pinion 18. The pinion 19 is fixed to the rotor shaft 20 a of the rotary damper 20 fixed to the casing 11. The rotary damper 20 is a so-called oil damper in which a rotor is disposed in the main body via silicon oil, and the rotation of the rotor in one direction, that is, clockwise in the example of FIG. 1 is braked.
[0010]
Next, the operation of the open holding device according to the present invention will be described.
FIGS. 3A and 3B are front views of the main part showing the engaging operation. First, when the door 1 is opened and the contact surface 2b of the L-shaped metal fitting 2 is brought into contact with the hook portion 12B of the engaging member 12, as shown in FIG. As a result, an upward pushing force acts. Therefore, the engagement member 12 swings upward about the swing shaft 13. Accordingly, as shown in FIG. 5B, when the hook portion 12B moves up along the contact surface 2b and gets over the engaged portion 2a, the engaging member 12 falls due to its own weight, so that the hook portion 12B Engages with the engaged portion 2a.
In this engaged state, the engaged portion 2a is positioned between the hook portion 12B and the pressing portion 15a of the retracting rod 15, so that the L-shaped metal fitting 2 can be held without rattling at a fixed position. That is, the door 1 can be reliably held without being changed in the opening / closing direction by wind or the like.
[0011]
On the other hand, FIG. 4 is a front view of the main part showing the disengagement operation.
That is, when the door 1 is slightly pressed in the opening direction and the engaged L-shaped metal fitting 2 is moved, the pressing portion 15a of the retracting rod 15 is pressed, and the rod 15 resists the elastic force of the coil spring 16. Move backward in the direction of the arrow. When the retracting rod 15 is retracted, the tip of the rod portion 15 c presses the bulging portion 17. As a result, an upward sliding contact force is generated on the pressed surface of the bulging portion 17 with respect to the pressing force of the rod portion 15 c, and the engagement member 12 swings upward about the swing shaft 13.
[0012]
When the engaging member 12 swings in this way, the pinion 18 rotates in the clockwise direction, and a counterclockwise rotational force is applied to the rotor of the rotary damper 20 through the other pinion 19. Since the rotary damper 20 does not generate a braking force against counterclockwise rotation, the swing of the engagement member 12 is not restricted.
When the engaging member 12 swings in this way and falls instantaneously due to its own weight, the hook portion 12B is engaged again and cannot be released.
[0013]
Therefore, in this embodiment, a rotary damper 20 is provided. That is, when the engaging member 12 swings, the rotary damper 20 brakes the clockwise rotational force, so that the swing shaft 13 is braked counterclockwise via the pinions 19 and 18.
Accordingly, the fall of the engaging member 12 is delayed by, for example, about 2 seconds. Therefore, before the hook portion 12B is engaged again, the door can be moved in the closing direction to reliably release the engagement. .
[0014]
FIG. 5 is a cross-sectional view of another engagement mechanism portion 10. The engagement mechanism unit 10 includes a casing 11 and an engagement member 12 that are mounted on the mounting bases 4A and 4A.
The base portion 12A of the engaging member 12 is pivotally supported by the pivot shaft 13A. A gear portion 18A is provided directly below the base portion 12A, and another pinion 19 is engaged with the gear portion 18A. The pinion 19 is fixed to the rotor shaft 20a of the rotary damper 20 as described above.
Further, a pressed surface 17A made of an inclined surface is formed on the base 12A. On the other hand, a housing part 14 is formed in the casing 11. A retracting member 50 is disposed in the storage portion 14. The retracting member 50 has a pressing portion 50a protruding from the storage portion 14 at the tip, a main body portion 50b on which the coil spring 16 is disposed, and a push-up having a slope protruding from the rear of the storage portion 14 and facing the pressed surface 17A. Part 50c. One end of the coil spring 16 is in contact with a wall surface forming the storage portion 14.
[0015]
Next, operation | movement of this engagement mechanism part 10 is demonstrated.
When the L-shaped metal fitting 2 shown in FIG. 2 is brought into contact with the hook portion 12B of the engaging member 12, a pushing force acts on the hook portion 12B as described above, so that the engaging member 12 is centered on the pivot shaft 13A. And then falls by its own weight, and the hook portion 12B engages with the engaged portion 2a.
[0016]
Next, when the door is pushed in the opening direction to move the L-shaped metal fitting 2, the pressing portion 50 a of the retreating member 50 is pressed, and the retreating member 50 moves backward against the elastic force of the coil spring 16. When the push-up portion 50c presses the pressed surface 17A by this retreat, a push-up force acts on the base portion 12A, so that the engaging member 12 swings upward about the pivot shaft 13A.
Thereafter, the rotary damper 20 brakes the counterclockwise rotation of the engaging member 12 via the gear portion 18A in the same manner as described above, so that the falling of the engaging member 12 is delayed.
[0017]
FIG. 6 is a perspective view showing another embodiment of the open holding device according to the present invention.
In FIG. 6, 2 is an L-shaped bracket fixed to a door (not shown), and 10 is an engagement mechanism.
As shown in FIG. 7, the engagement mechanism unit 10 includes an engagement member 30 that also serves as a casing, and an inner casing 31 that is detachably mounted on the base 4. A hook portion 30 </ b> A that forms an opening is provided at the tip of the engaging member 30, and the rear of the engaging member 30 is pivotally supported by the inner casing 31 via a pivot pin 32 so as to be able to swing up and down.
[0018]
The inner casing 31 has a housing portion 14 formed by a partition wall, and the retracting rod 15 is disposed in the housing portion 14 in the same manner as described above. On the other hand, the protrusion 33 extends inward from the engagement member 30.
A sliding contact plate 34 is provided above the inner casing 31. A leaf spring 35 is disposed above the sliding contact plate 34. The upper end of the leaf spring 35 is fixed to the inner wall of the engaging member 30, and the lower end thereof is in contact with the sliding contact plate 34 via the friction member 36 (see FIG. 8). The leaf spring 35 is pressed by the weight of the engaging member 30 and is elastically deformed when the engaging member 30 is engaged (FIG. 7).
[0019]
Next, the operation of the open holding device will be described.
When the abutting surface 2b of the L-shaped metal fitting 2 is brought into contact with the hook portion 30A of the engaging member 30, an upward pushing force is received in the same manner as described above, so that the engaging member 30 is centered on the pivot pin 32. Swing upward. Then, the hook portion 30A gets over the engaged portion 2a and engages with the engaged portion 2a.
[0020]
On the other hand, when the door is slightly pressed and the retracting rod 15 is pressed by the engaged portion 2a of the L-shaped metal fitting 2, a pushing force is applied to the protruding portion 33 by the pressing force of the retracting rod 15, so that the engaging member 30 is pivotally supported. The hook part 30A is detached from the engaged part 2a by swinging upward about the pin 32.
Thus, when the engaging member 30 swings, the leaf spring 35 returns to the non-deformed state while sliding on the sliding contact plate 34 as shown in FIG.
[0021]
Next, when the swinging of the engaging member 30 is finished and the weight of the engaging member 30 is applied to the leaf spring 35, the leaf spring 35 slides the friction member 36 on the sliding contact plate 34 as shown in FIG. Since the contact member is gradually deformed while being in contact, the engagement member 30 is delayed in dropping.
Therefore, the engagement of the hook portion 30A can be reliably released by moving the door in the closing direction before the hook portion 30A is engaged again.
[0022]
FIG. 9 is a sectional view showing still another embodiment of the present invention.
In this open holding device, the L-shaped metal fitting 5 is formed with an engagement hole 5a and a push-up piece 5b.
The engagement mechanism portion 10 includes an engagement member 12, and a base portion of the engagement member 12 is pivotally supported by a casing 42 by a pivot pin 40 so as to be swingable. The engaging member 12 is placed on the support plate 41, and an elastic plate 43 made of rubber or the like is sandwiched between the support plate and the tip of the casing 42.
The upper end of the leaf spring 35 is fixed to the lower surface of the engagement member 12, and the lower end of the leaf spring 35 is in contact with the casing 42. The casing 42 is fixed on a support cylinder 44 fixed on the floor surface.
[0023]
In the open holding device having the above configuration, when the bent portion 5c at the tip of the L-shaped bracket 5 is brought into contact with the hook portion 12B, the engaging member 12 swings upward about the pivot shaft 40. Accordingly, the hook portion 12B rides on the L-shaped bracket 5 and engages with the engagement hole 5a to maintain the engaged state. In this case, the bent portion 5 c is sandwiched between the hook portion 12 </ b> B and the tip of the elastic plate 43.
[0024]
On the other hand, when the door is pressed slightly and the push-up piece 5b of the L-shaped metal fitting 5 is brought into contact with the hook portion 12B, the engaging member 12 swings upward, and the hook portion 12B is detached from the engagement hole 5a.
When the engaging member 12 swings, the leaf spring 35 returns to the original shape before the deformation, and when the weight of the engaging member 12 is added thereafter, the leaf spring 35 is gradually elastically deformed as described above. Therefore, the fall of the engaging member 12 can be delayed.
[0025]
FIG. 10 is a cross-sectional view of an open holding device according to another invention.
In FIG. 10, reference numeral 6 denotes a metal fitting to be engaged that is fixed to a door (not shown), and 10 denotes an engagement mechanism. The engaged metal fitting 6 has an engaged portion 6a, and a contact surface 6b is formed on the outer surface thereof. The engaged metal fitting 6 is provided with a push-up portion 6c having an inclined surface.
[0026]
On the other hand, the engagement mechanism section 10 includes a large engagement member 60 that also serves as a casing, and an inner casing 61 that is detachably mounted on the base 4. The engaging member 60 is formed in a box shape that is easily subjected to air resistance from a thin plate made of an aluminum alloy containing titanium, tin or the like, and is lightened. The distal end bending portion of the engaging member 60 forms a hook portion 60A, and a slight rear position from the center is pivotally supported by the inner casing 61 via a pivot pin 62 so as to be swingable up and down.
A presser rod 63 is supported on the inner casing 61 via a coil spring 64 so as to be able to protrude, and a tip end portion 63 a protrudes from the inner casing 61.
[0027]
Next, the operation of the open holding device will be described.
When the contact surface 6b of the metal fitting 6 to be engaged is brought into contact with the hook portion 60A of the engagement member 60, an upward push-up force is received in the same manner as described above. Swings upward as the center. Then, the hook portion 60A gets over the engaged portion 6a and engages. In this state, the hook portion 60A and the distal end portion 63a of the presser rod 63 lightly hold the engaged portion 6a, so that the engaged portion 6a can be prevented from coming off.
[0028]
On the other hand, when the door is slightly pressed and the hook portion 60A is pressed by the push-up portion 6c of the metal fitting 6 to be engaged, a push-up force is applied to the hook portion 60A by the inclined surface of the push-up portion 6c. It swings upward about the pin 62, and the hook part 60A comes off the engaged part 6a.
[0029]
By the way, the engaging member 60 is formed in a box shape as described above and is reduced in weight, and adjusted so that the hook portion 60A side is slightly heavier with the pivot shaft 62 as a center. Therefore, the fall of the engaging member 60 due to its own weight is delayed by receiving air resistance.
Therefore, the door can be moved in the closing direction before the hook portion 60A is engaged again.
[0030]
FIG. 11 is a front view of a main part of an open holding device according to another invention.
In FIG. 11, the L-shaped metal fitting 5 is formed with an engagement hole 5 a and a push-up piece 5 b as in FIG. 9.
The engagement mechanism unit 10 includes an engagement member 12. The engaging member 12 is integrally provided with a weight portion 45 on the base side, and is pivotally supported by the casing by a pivot pin 40 so as to be swingable. Since the configuration other than the engaging member 12 is the same as the configuration shown in FIG. 9, the description and illustration thereof are omitted.
[0031]
For example, the engaging member 12 is set to 9 g on the weight 45 side and 10 g on the hook 12B side, with the pivot pin 40 as the center, thereby achieving a delay in dropping on the hook 12B side.
That is, in the engaged state shown in FIG. 11, when the push-up piece 5b of the L-shaped metal fitting 5 is brought into contact with the hook portion 12B, the engaging member 12 swings upward and the hook portion 12B is detached from the engagement hole 5a. .
The swinging engagement member 12 is slowed down by its weight 45 due to its own weight. Therefore, the door can be moved in the closing direction.
[0032]
【The invention's effect】
As described above, according to the present invention, the hook member is engaged with the engaged member by bringing the engaged member into contact with the hook portion of the engaging member using the opening / closing body, and the opening / closing body is Further, the engagement of the hook portion is released by pressing and the fall of the engaging member is delayed, so that the open / closed body can be held and released only by the pressing operation of the open / close body.
Therefore, even a handicapped person can hold and release the open / closed body with a simple operation, and it is not necessary to move furniture.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of an engagement mechanism portion of an open holding device according to the present invention.
FIG. 2 is a front view of the apparatus.
FIGS. 3A and 3B are front views of main parts showing the engaging operation of the apparatus. FIG.
FIG. 4 is a front view of the main part showing the disengagement operation of the apparatus.
FIG. 5 is a cross-sectional view of an engagement mechanism according to another embodiment.
FIG. 6 is a perspective view of an open holding device according to still another embodiment.
7 is a cross-sectional view of the apparatus of FIG.
8 is an enlarged view showing an operation of a main part of the apparatus of FIG.
FIG. 9 is a cross-sectional view of an open holding device according to still another embodiment.
FIG. 10 is a cross-sectional view of an open holding device according to another invention.
FIG. 11 is a front view of a main part of an open holding device according to another embodiment of the present invention.
[Explanation of symbols]
3 Floor surface 4 Base 10 Engagement mechanism part 11 Casing 11a, 11b Partition plate 12 Engagement member 12A Base part 12B Hook part 13 Oscillating shaft 14 Receiving part 15 Retraction rod 15a Press part 15b Flange part 15c Rod part 17 Expansion part 18, 19 Pinion 20 Rotary damper 20a Rotor shaft

Claims (3)

Opening / closing device for opening / closing body comprising an engaged member fixed to the opening / closing body, and an engagement mechanism portion that is disposed at a predetermined position to hold the opening / closing body to be engaged with the engaged member. Because
The engagement mechanism portion is
It is pivotally supported so that it can swing up and down around the swinging shaft, swings upward by contact of the engaged member with the opening of the opening / closing body to the hook portion at the tip, falls by its own weight, and An engaging member for engaging the hook portion with the engaged member;
An engagement release means for swinging the engagement member upward to release the engagement of the hook portion when receiving a pressing force via the opening / closing body from the engaged member being engaged;
Open holding device of the opening-and-closing member, characterized in that it comprises a and a unidirectional drop delay means for delaying the falling by its own weight as well as allow the swing to the upper front Kigakarigo member.   The disengaging means includes a retracting rod that elastically retreats upon receiving the pressing force, and a bulging portion that is provided on the engaging member and that displaces upward upon receiving the pressing force due to the retreating of the retracting rod. The opening and closing device for an opening / closing body according to claim 1, comprising: 2. The opening / closing body opening and holding device according to claim 1, wherein the drop delay means is a rotary damper that brakes rotation of the swing shaft when the engagement member is dropped .

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