JP3330051B2 - Handrail device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a handrail device which is equipped on a toilet, a bathroom, an entrance, and other required walls inside and outside a building, and is used by persons with physical disabilities.
This type of handrail is stored in an upright state alongside the wall so as not to be in the way when not in use, and when it is used, it is pivoted down until it becomes a lying state perpendicular to the wall, The present invention relates to a handrail device that can be used as a handrail.

[0002]

2. Description of the Related Art Handrails mounted on walls such as toilets and bathrooms for persons with physical disabilities, such as the physically handicapped and the elderly, require a normal amount of handrail projection from the wall during use. Since it becomes overwhelmingly larger than handrails, if it is fixed, it will be a considerable obstacle for healthy people who do not use it, so it can be stored freely so as not to be in the way when not in use It is desirable.

For this reason, as a means for accommodating a handrail, a horizontal swing type (horizontal rotation type) not shown and a flip-up type (vertical rotation type) as shown in FIG. 7 have been proposed. When the handrail storage means of the horizontal swing type is used, the handrail can be laterally rotated toward the wall surface while being in the horizontal and laid-down state at the time of use, so that the handrail can be stored along the wall surface. On the other hand, when the flip-up type handrail storage means is used, as shown by the two-dot chain line in FIG. Then, it can be retracted to the side of the wall surface b as shown by the solid line in FIG.

[0004]

In the case of the above-described horizontal swing type, the handrail is stored so as to stick to the wall surface, and the amount of protrusion is drastically reduced. In addition, in the stored state, there is no need to separately support the handrail. The desired result is obtained. However, according to this means, when the handrail is stored and taken out, the handrail is swung sideways with its length as a radius. Therefore, a large space is required in the swirling area, and therefore the internal space is originally narrow, and the toilet and bathtub are small. In a toilet or bathroom located near a wall, the handrail itself cannot be equipped.

On the other hand, in the case of the flip-up type, when the handrail a is in a U-shape as shown in FIG. However, there is a disadvantage that the amount of protrusion is larger than that of the horizontal swing type. However, when the handrail is rotated in the vertical direction, it is sufficient if there is a width space of about the thickness of the handrail, and therefore, the internal space is narrow. It has the advantage that it is convenient to use in toilets and bathrooms.

However, in the case of the flip-up type storage means, when storing and taking out the handrails, the handrails must be rotated while always supporting the heavy handrails. This is not appropriate, and even when handled by a healthy person, a dangerous situation in which the handrail suddenly falls in the removal direction may be caused.

In addition, in the case of the storage means, it is difficult for a physically handicapped person to use a wheelchair or to stand while operating the handrail. It is difficult to pivot down from the use state to the use state or to lift from the use state to the storage state, and it may be necessary to lift the handrail or move the body during operation.

In order to cope with such a problem, it is conceivable to provide a free-stop type handrail device which can stop the handrail at that position when the rotation operation of the handrail a is stopped. . However, as a free-stop type handrail device, the entire rotation angle range from the storage position A in an upright state as shown by a solid line in FIG. 7 to a use position B in a horizontal state shown by a two-dot chain line in FIG. If the handrail a is rotated down from the storage position A (90 °), the handrail is stopped in the middle, and the handrail A is moved to the use position B (0 °). ), For example, from the use position b.
When the free stop state is reached at the position immediately before use such as 5 ° or 5 °, the user thinks that the handrail a has reached a use state in which the handrail a will not rotate any more, Since the handrail a suddenly falls due to the load as a result, the user may not only give a sense of fear to the user but also worry about occurrence of a dangerous situation.

The present invention has been made in view of the above-mentioned conventional technical problems. According to the first aspect of the present invention, a handrail which moves up and down by a turning operation is moved horizontally from a storage position of a handrail or the like. Until the desired angle before the actual use position is reached, the free stop section is used, and the area up to the use position is divided into the soft-down section, so that the turning force to the handrail is not applied or it is applied Even if
The handrail slowly rotates and descends, and after confirming the completion of the rotational descending, the use can be started so that fear of danger to the user and occurrence of danger can be avoided. Its purpose is to ensure safe use for the physically challenged.

According to the second aspect, the one-way spring, which is a component of the brake device used in the handrail device of the first aspect, causes a dimensional error in the inner diameter in manufacturing or the position of the arm at both ends. When the displacement occurs, the strength of the one-way spring to the outer periphery of the control drum and the displacement of the arm, which may occur when foreign matter enters between the one-way spring and the brake drum or the control drum, etc. The handrail can be easily corrected, whereby the free stop section and the soft down section of the handrail can be secured with high reliability. In claim 3, the braking force in the free stop section is determined by the weight of the handrail. It can be adjusted appropriately according to the magnitude of the rotating moment, The, trying to ones ensure more stable.

[0011]

In order to achieve the above object, according to the present invention, the bearing and the control drum are coaxial and the rotation of the interior is fixed in a state where the rotation is fixed. A cylinder, a rotating body having a handrail supported orthogonally thereto, a fixed shaft having a rotating body rotatably supported through a bearing in the horizontal cylinder and a control drum; A power spring interposed between the rotating body and the fixed shaft against a rotating force of the rotating body in a rotating lowering direction due to an external force applied to the rotating body; In order to withstand the rotational force of the bearing, the bearing and the damper provided over the control drum and the fixed shaft, and between the control drum and a side cap provided at the end of the fixed shaft, are respectively provided on the fixed shaft. A brake drum is freely respectively rotate with respect to the fixed shaft, and the brake plate which is pivoted fixed,
A rotatable elastic pressing body and a one-way spring wound around the control drum and the brake drum in a state where the arms at both ends are hooked on the protrusion of the control drum and the stopper of the brake plate, respectively. Have the ingredients,
A braking device that resists only the rotational force of the rotating body having handrails in the rotating and descending direction, wherein the power spring is set such that the rotating moment due to the spring reaction force is smaller than the rotating moment due to the weight of the rotating body, An angle clutch that expands the one-way spring in order to release the braking force against the rotating body at a position immediately before use in the maximum rotation angle range of the rotating body in the rotating and descending direction of the rotating body due to the external force applied to the handrail includes a one-way spring A handrail device characterized in that the handrail device is formed by projecting a spring pin that can be freely engaged with one of the arms from the fixed shaft and outwardly from a long hole formed in a circumferential direction of the control drum. Trying to offer.

According to a second aspect of the present invention, the bearing and the control drum are coaxial and the inner cylinder is fixed in a state where the rotation is fixed, and the handrail is orthogonally supported by the horizontal cylinder. And a fixed shaft through which the rotating body is rotatably supported through the bearing in the horizontal cylinder and the inside of the control drum, and the rotational force in the rotating lowering direction with respect to the rotating body due to the external force on the handrail. A power spring interposed between the rotating body and the fixed shaft; and a bearing, a control drum, and a stationary drum for preventing the rotating force of the rotating body from rotating downward and rotating upward. Between the damper mounted over the shaft, the control drum and the side cap provided at the end of the fixed shaft,
A brake drum externally mounted on the fixed shaft and rotatable with respect to the fixed shaft, a rotatable first brake plate having a plurality of stoppers on the outer periphery, and a second brake fixed to rotate; The plate is formed so that it can be freely inserted and removed in the axial direction with respect to each other, and is fitted and fixed so that the position can be adjusted in the direction around the axis. In the state where the arms are respectively engaged with the protrusions of the control drum and the stoppers of the brake plate, the control body and the one-way spring wound around the brake drum are provided, and the rotating body with the handrail is rotated downward. A braking device that resists only the rotational force to the power spring, wherein the rotational moment of the power spring is set smaller than the rotational moment of the rotating body due to its own weight, One in the use position immediately before the maximum pivot angle in the range of by an external force to the handrail to rotate drop direction of the rotating body, in order to release the brake force against the rotation body,
An angle clutch that expands the one-way spring projects a spring pin that can be engaged with one arm of the one-way spring from the fixed shaft and projects outward from a long hole formed in the circumferential direction of the control drum. It is intended to provide a handrail device characterized by being formed.

According to the third aspect, the bearing and the control drum are coaxial and the rotation is fixed, and the horizontal cylinder fixed to the interior and the handrail are supported orthogonally to the horizontal cylinder. A rotating body, a fixed shaft that penetrates through the bearing in the horizontal cylinder and the inside of the control drum and is rotatably supported by the rotating body, and rotation in a direction of descent with respect to the rotating body due to an external force applied to the handrail; A power spring interposed between the rotating body and the fixed shaft against the force; and the bearing and the control drum in order to withstand a rotating force with respect to the rotating body in a rotating downward and a rotating upward direction. And between the control drum and a side cap provided at the end of the fixed shaft, respectively, are provided on the fixed shaft, and are rotatable with respect to the fixed shaft. When the brake drum, the brake plate that is rotatably fixed, the rotatable elastic pressing body, and the arms at both ends are respectively engaged with the protrusion of the control drum and the stopper of the brake plate, A brake device having a one-way spring wound around a brake drum and resisting only a rotational force of a rotating body having a handrail in a rotational descending direction, and the other side provided at an end of a fixed shaft Between the cap and the elastic pressing body,
A gear that is screwed to the fixed shaft so as to be screwable in the axial direction, and is axially supported so as to be freely rotatable from the outside through the side cap through the side cap, and is engraved on the inner end. A braking force adjusting device comprising an adjusting gear having a tooth profile part meshed with the gear, wherein the power spring is configured such that a turning moment due to a spring reaction force thereof is smaller than a turning moment due to its own weight of the turning body. An angle clutch that expands the one-way spring to cancel the braking force against the rotating body at a position immediately before use within the maximum rotation angle range of the rotating body due to the external force on the handrail in the rotating and descending direction of the rotating body. A spring pin, which can be engaged with one arm of the one-way spring, is opened in the circumferential direction of the control drum by projecting from the fixed shaft. The handrail apparatus characterized by being formed by projecting from the long hole to the outside, and its contents.

According to the present invention, by providing the above structure, the handrail is mounted on a wall surface such as a toilet or a bathroom, so that the fixed shaft is horizontally laid on the wall surface via the base frame. Attached. The handrail combined with the fixed shaft via the rotating body has a range of about 90 ° from the storage position in the upright state with the fixed shaft as a fulcrum in the attached state to the use position in the fall-down state. Will rotate within.

At this time, when the handrail is to be rotated and lowered, the power spring and the damper decelerate the handrail against its own weight, so that the handrail is slowly rotated and lowered. In addition, since the braking force exerted by the brake device is incorporated so as to act only when the handrail is pivoted downward from the storage position, the braking force can be obtained from the storage position standing at 90 °. Free stop in which the handrail is stopped at that position if the rotation operation is stopped within the range of turning to the position just before use near 15 ° before reaching the use position of 0 °. The state will be secured.

When the handrail is rotated by 75 ° from the storage position of 90 ° to the position immediately before use of 15 °, one end of the one-way spring is expanded in the angle clutch which is one of the constituent members. The winding state of the control drum around the outer peripheral surface is released. As a result, the above-mentioned braking force against the handrail is lost, and the handrail is in a non-braking state. Therefore, only the power spring and the damper force are applied from the position immediately before use to the use position. It descends in the soft-down state without the free stop state to the position.

Next, when the handrail is to be rotated upward from the above-mentioned use position to a position immediately before use, the spring reaction force and the damper force of the power spring act, so that the handrail can be lifted lightly. If you release your hand in the meantime, of course, the handrail will be in the soft-down state described above. Further, since the brake device is in a non-braking state in which the brake device does not act on the rotation-up operation from the position immediately before use to the storage position, the rotation can be lightly raised by the spring reaction force of the power spring, and during that time When the hand is released, the power spring, the damper, and the braking force act, and the handrail stops in the free stop state.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The construction of a handrail device according to an embodiment of the present invention will be described below with reference to the accompanying drawings. In FIG. 1, reference numeral 1 denotes a base frame, and in FIGS. Is a fixed shaft, 4 is a power spring,
Reference numeral 5 denotes a brake device, 6 denotes an angle clutch, and 7 denotes a brake force adjusting device.

The base frame 1 has a plurality of screw holes 8
‥, a support piece 1b, 1b which is bent forward at a right angle from both left and right edges of the seat plate 1a, and a center of an upper edge of the seat plate 1a so as to receive the rotating body 2. It is constituted by a stopper 1c which is bent forward and is clearly shown in FIG.

As shown in FIGS. 1, 2 and 6, the rotating body 2 supports a handrail 9 which is formed by bending a pipe into a U-shape with a substantially reversed side surface, and raises it. It is intended to be turned up and down in a retracted storage state or in a folded use state. The illustrated rotating body 2 is formed by a horizontal cylinder 2a and a vertical cylinder 2b which cross in an inverted T-shape, a rib 2c protruding forward from these, and a support cylinder 2d fixed vertically to the tip thereof. The handrail 9 has its base end fitted to the vertical cylinder 2b and is fixed by a fixing screw 10, and its tip end is fitted to the support cylinder 2d and fixed by a fixing screw (not shown). The moving body 2 is supported.

Further, as shown in FIG. 1, the intermediate portion in the longitudinal direction of the horizontal cylinder 2a is in a rotationally fixed state so that the control drum 12 rotates around the left end in the axial direction. The bearing 11 is fitted with the O-rings 14 in the annular concave grooves 13 on the surface thereof.

The above bearing 11 and control drum 1
As is understood from FIGS. 1 and 2, the rotation fixing means is provided on the inner surface of the cylindrical portion 11 a provided on the left end side in the axial direction of the bearing 11, and is provided at a constant interval in the circumferential direction. The plurality of engaging projections 12a # projecting from the outer periphery on the right end side of the control drum 12 are engaged with the plurality of concave groove grooves 11b # formed long in the axial direction by being inserted in the axial direction. It is done by matching. The control drum 12 is fitted in the bearing 11 via an O-ring 15 fitted in an annular groove 12b formed in the outer periphery on the right end side of the control drum 12.

As shown in FIG. 1, the fixed shaft 3 penetrates through the bearing 11 and the control drum 12 in the horizontal cylinder 2a of the rotating body 2, and supports the rotating body 2 so as to be rotatable. are doing. On the surface of the fixed shaft 3,
Two annular concave grooves 3a, 3b at a certain interval in the axial direction
Are fixed, and the fixed shaft 3 is connected to the bearing 11 via O-rings 16 and 17 fitted in the annular grooves 3a and 3b, respectively.
And the control drum 12.

As shown in FIGS. 1 and 2, an annular groove 11c is formed in the bearing 11 on the inner peripheral surface on the left end side where the control drum 12 is fitted in a rotationally fixed state as described above. And the O-ring 18 of FIG.
And the O-rings 15 and 17 described above,
A chamber is provided between the control drum 12 and the fixed shaft 3 and is isolated from the outside. The chamber accommodates a pair of disks 19 and 20 shown in FIG. In other words, one disk 19 is rotatably fitted to the fixed shaft 3 by the missing circular portion 3c of the fixed shaft 3, while the other disk 20 has a plurality of protrusions 20a projecting from the periphery. ‥ to each groove 11b of the bearing 11 軸 受
The hydraulic fluid is fixed so as to be rotatable together with the bearing 11, is rotatably mounted together with the rotating body 2, and has a large shearing resistance in the chamber. Is filled to form the damper 21.

Further, the horizontal cylinder 2a of the rotating body 2 and the fixed shaft 3
Each of the bearings 11 has a through hole 2e, 3
d and 11d are formed coaxially, and as shown in FIG. 1, the fixing screw 10 is connected to each of the through holes 2e and 3d.
A tool (not shown) such as a screwdriver is inserted into and screwed into d and 11d, and the head of the fixing screw 10 is fitted into the through hole 11d, whereby the bearing 11 and the control drum 12 are attached to the rotating body 2. Fixed. In addition, the through hole 2
In order to prevent e and 3d from being seen from the outside, a cap 22 is fitted in the illustrated example.

Next, as shown in FIG. 2, the power spring 4 has arms 4a and 4b formed at both ends thereof protruding outward in the axial direction. The arms 4a and 4b are provided inside the horizontal cylinder 2a of the rotating body 2 as shown in FIG. As shown in FIG. 2A, a locking hole 11e formed in the side surface of the bearing 11 and one side cap whose rotation is fixed to one end of the fixed shaft 3 by a spring pin 23 as shown in FIG. The arm 4a and the arm 4b are engaged with a locking hole 24a formed in the hole 24, respectively. Further, as can be understood from FIGS. 1 and 2, the side cap 24 has a horizontal cylinder 2a in the rotating body 2 via an O-ring 25 fitted on the outer periphery thereof.
The rotating body 2 is fitted so as to be freely rotatable.

Therefore, the power spring 4 is disposed such that the spring reaction force thereof is opposed to the rotating body 2 in the downward direction, that is, the rotating force of the rotating descent. The moving body 2 is urged to rotate upward, that is, to turn upward. A side cap 26 is also provided on the other end of the fixed shaft 3, and is provided on the outer periphery of the fixed shaft 3 via an O-ring 27 as shown in FIGS. The rotating body 2 is fitted so as to be rotatable.

Here, as shown in FIGS. 1, 2 and 3B, the fixed shaft 3 is formed by connecting the cutout portions 3e, 3e formed at both ends thereof to the base frame 1 as described above. A pair of rotation preventing projections 1d, 1e protruding from the inner surfaces of both support pieces 1b, 1b are sandwiched between the pair of rotation preventing projections 1d, 1e so as to be pressed against the inner surfaces and the stepped holes 26 of the side cap 26 to be inserted.
b, the rotation preventing protrusion 1e is engaged with the interior, and in this state, the fixing screws 28, 28 are screwed into the screw holes 3h, 3h of the rotating shaft 3 through the through holes 1f, 1g of the support pieces 1b, 1b. By doing so, it is fixed so as not to rotate. In the illustrated example, substantially U-shaped metal fittings 29, 29 are provided in recesses 24b, 26a provided on the outer surfaces of both side caps 24, 26 described above.
Are engaged and fixed by insertion from below. FIG.
Numerals 30 and 30 denote caps which are detachably mounted on the outside of the support pieces 1b and 1b. The caps 30, 30 are provided with two not-shown locking legs protruding from the inner surfaces thereof.
b, 1b, it is locked so that it can be freely inserted into and removed from a not-shown locking hole.

As shown in FIGS. 1 and 2, the brake device 5 includes a brake drum 31 and first and second brake drums 31 so that a braking force is applied only when the handrail 9 of the rotating body 2 is rotated downward. It is composed of a brake plate composed of two brake plates 32 and 33, an elastic pressing body 34 using a disc spring, a coil spring, and the like, and a coiled one-way spring 35.

That is, the control drum 12 described above
The brake drum 31, the first brake plate 32, the second brake plate 33, and the elastic pressing body 34 are sequentially formed on the fixed shaft 3 in the order from to the side cap 26. And the brake drum 31, the first
The brake plate 32 and the elastic pressing body 34 are rotatably fitted respectively. On the other hand, the second brake plate 33 has a substantially oval-shaped shaft hole 33a penetrating the center thereof, The rotation is fixed by fitting 3f. The one-way spring 35 is provided at both ends in its length direction (axial direction), and the arms 35 are symmetrically positioned.
a and 35b are projected, and one arm 35a is
One of a plurality of stoppers 32a # projecting from the peripheral surface of the first brake plate 32 at regular intervals in the circumferential direction is hooked on one of the stoppers 32a #, and the other arm 35b is connected to the control drum. The control drum 12 and the brake drum 31 are wound around the outer peripheral surfaces of the control drum 12 and the protrusions 12c. As a result, when the handrail 9 is rotated down and the rotating body 2 is rotated, the rotating force is sequentially transmitted to the brake drum 31 via the bearing 11, the control drum 12, and the one-way spring 35. Sides and
As described above, the braking force is generated by rubbing the second brake plate 33 whose rotation is fixed with respect to the fixed shaft 3 and the side surface of the first brake plate 32 whose rotation is also fixed. It is configured. In FIG. 2, the first brake plate 3
The arrangement order of the second and second brake plates 33 is shown inverted to clearly show each configuration.

In the present invention, as shown in FIG.
The angle 0 at which the handrail 9 is in the horizontal lying state shown by the two-dot chain line
From the use position (b) toward the storage position (a) at an angle of 90 degrees, which is in the upright state shown by the solid line, by the spring reaction force of the power spring 4 and the handrail 9 is opposed to the spring reaction force. Is rotated down from the storage position A to the use position B. As shown in FIG.
The free stop section d of the handrail 9 is set between the position C just before use and the soft stop section e between the position C just before use and the use position b.

That is, in the soft-down section (e), the handrail 9 is gently rotated and lowered until the handrail 9 reaches the use position B against the spring reaction force of the power spring 4. By setting the turning moment due to the weight of the handrail 9 larger than the turning moment due to 4, the difference between the two turning moments is reduced by the damper force constantly applied by the damper 21, The handrail 9 is configured to ensure soft down.

In the above-mentioned free stop section d, the difference between the two turning moments from the storage position A of the handrail 9 to the position C just before use is calculated by adding the braking force by the brake device 5 described above. In this way, the free stop state is realized, and when the handrail 9 is to be turned up from the use position B to the storage position A, the handrail 9 can be lifted lightly by the force due to the difference between the two turning moments. Therefore, the braking force of the brake device 5 is not applied, and the angle clutch 6 is provided as described later in detail. At this time, the damper force by the damper 21 acts, but if the difference between the two rotational moments is set small, the damper force by the damper 21 does not need to be very large.

As described above, the angle clutch 6 acts only when the braking force by the brake device 5 is turned down from the stowed position A at 90 ° to the immediately preceding position C at 15 °. As shown in FIGS. 1 to 3, a spring pin 36 is protruded and fixed in the radial direction of the fixed shaft 3, and is fixed to the base of the control drum 12. In
The one end of the one-way spring 35 is attached to the protruding end of the spring pin 36 by inserting the protruding end of the spring pin 36 into the elongate hole 12 d formed to penetrate in the circumferential direction.
5b is free to engage.

FIGS. 4A to 4E show that the braking force of the brake device 5 is applied only when the handrail 9 is pivoted down from the storage position A to the position immediately before use by the angle clutch 6. Normal operating conditions when incorporated to work are shown.

That is, in FIG. 4A, when the handrail 9 is at the storage position A, the positions of the arms 35b and 35a of the one-way spring 35 with respect to the control drum 12 and the brake drum 31 are shown vertically. Next, (B) shows the state of the position C just before use when the handrail 9 is turned down by 75 ° from the position of (A) described above. Therefore, here, the control drum 1
2, brake drum 31, one-way spring 35
However, when both are rotated by 75 ° in the same direction, one arm 35b contacts the spring pin 36 and stops at that position. In other words, the brake force is applied before reaching the position C just before use, and the free stop state is reached. However, when the position C just before use is reached, the arm 35b is hooked on the spring pin 36 to prevent the rotation. Therefore, the braking force is not applied between (B) and (C) in FIG. 4, and the handrail 9 is in the soft-down state E from the position C immediately before use to the use position B.

When the handrail 9 is rotated upward from the use position B of the handrail 9 shown in FIG. 4C, the protrusion 12 of the control drum 12 is moved to the position C just before use shown in FIG.
c comes into contact with the arm 35b, and in this state, the arm 35b is rotated and returned to the storage position A of the handrail 9 shown in the same figure (E), but between the use position B and the storage position A, the braking force is reduced. Since it does not act, the handrail 9 can be rotated lightly.

When the handrail 9 is released in the course of turning from the use position B to the position C just before use, the handrail 9 turns down in a soft down state, and moves from the position C just before use to the storage position A 9.
If the hand is released during the rotation to 0 °, the handrail 9 stops at that position in the free stop state.

As described above, the one-way spring 35
When the arms 35a and 35b are provided at both ends of the arm, the positions of the arms 35a and 35b may be shifted in the circumferential direction due to a manufacturing error.
When it is mounted on the outer periphery of the one-way spring 35, the number of windings changes after mounting so that the inner diameter of the one-way spring 35 is slightly widened. The position may change.

The inner diameter of the one-way spring 35 is set such that the control drum 12
The side may be manufactured small, or the strand may be damaged, or foreign matter may enter between the one-way spring 35 and the control drum 12. In such a case, the one-way spring 35 and the The wrapping force on the control drum 12 becomes stronger than that on the brake drum 31.

In such a case, the control drum 1
2. Even when the one-way spring 35 is assembled to the brake drum 31 at a normal position as shown in FIG. 5A, the handrail 9 is moved from the storage position A to the use position B, and from the use position B to the storage position A. If the rotation operation is performed once, the one-way spring 35 is displaced in the circumferential direction by 15 ° from the time of assembly, and the position of the arm 35b is displaced from the position of FIG. 5A to the position of FIG. Resulting in. As a result, the soft-down section E as described above disappears, and a free stop state is set over the entire rotation section, so that the intended purpose cannot be achieved.

Such a displacement of the one-way spring 35 can be prevented by arbitrarily changing the hooking position of the other arm 35a in the circumferential direction. It is configured as follows.

As shown in FIGS. 1 and 2, the above-mentioned brake plates are composed of a first brake plate 32 and a second brake plate 3.
In the illustrated example, the first brake plate 32 has a substantially U-shaped vertical cross-section, and a plurality of stoppers on the outer peripheral surface of which the other arm 35a of the one-way spring 35 is engaged. 32a ‥‥‥ projecting at a constant interval in the circumferential direction, and a circular shaft hole 3 penetrating through the side wall thereof.
2b is fitted on the fixed shaft 3 so as to be rotatable with respect to the fixed shaft 3 and slidable in the axial direction.

On the other hand, the second brake plate 33 is fixed to the fixed shaft 3 by fitting the substantially oval-shaped shaft hole 33a at the center thereof with the missing circular portion 3f of the fixed shaft 3 as described above. And it is exteriorly slidable in the axial direction. The inner surface of the peripheral wall of the first brake plate 32 to which the second brake plate 33 is fitted;
The outer peripheral surfaces of the plurality of grooves 32c which can be freely inserted and removed in the axial direction and are fitted and locked in the axial direction.
突 and the ridge 33b ‥‥‥ are provided to be long in the axial direction. This allows the second shaft to be fitted to the fixed shaft 3 in a fixed state.
If the first brake plate 32 is fitted to the brake plate 33 at a position adjusted by rotating by a required angle at the time of assembly, the stopper 32a # can be adjusted in the circumferential direction. The position of 35a can be arbitrarily selected. The first and second brake plates 32, 33 may be fixed by screwing with a holding screw (not shown), in addition to the engagement by the fitting between the protruding ridge 33b and the concave groove 32c. .

Further, as shown in FIGS. 1 and 2, the brake force adjusting device 7 attached to the brake device 5
7 and the adjustment gear 38 are configured as follows. That is, the gear 37 is provided between the elastic pressing body 34 of the brake device 5 and the other side cap 26 by a screw hole 37a penetrating the center thereof.
Is screwed into a threaded portion 3 g formed near the end of the fixed shaft 3, so that the screw can be screwed along the axis of the fixed shaft 3.

On the other hand, the adjusting gear 38 has a circular head portion 38a at the base end and a toothed portion 38b at the tip end, and the stepped hole 26 penetrates the eccentric position of the side cap 26.
As shown in FIG. 1, an adjustment gear 38 is inserted through an O-ring 39 from the outside as shown in FIG.
7 is engaged.

The adjusting gear 38 is supported by the side cap 26 so as to be rotatable around the axis in a state where the adjusting gear 38 is prevented from moving in the axial direction. The gear 37 is screwed and moved along the fixed shaft 3 by performing forward and reverse operations from the outside through an operation port 1h formed in one of the support pieces 1b. Is pressed in the axial direction so that the braking force of the brake device 5 can be arbitrarily adjusted. By adjusting the braking force in this manner, a braking force corresponding to the magnitude of the rotational moment due to the weight of the handrail 9 can be obtained, so that a desired free stop state can be obtained.

[0048]

Since the present invention is constructed as described above, according to the first aspect, the handrail is in a rotation range between the storage position and the use position, from the storage position to the position immediately before use. The handrail is rotated from the stowed position to the position immediately before use because the angle clutch is divided into a soft-down section where the above-mentioned braking force is not applied. After moving down, even if you release your hand, it will be in a soft down state to the use position and will be held at the use position, so after checking the stationary state of the handrail, you can use it and assume that you have reached the use state There is no worry about starting to use it, and even if there is a behavior such as putting up weight on the handrail under the soft down state, the soft down state From being secured by the use of a simple angle clutch structure, it is possible to provide a high handrail device secure the body disabilities.

According to the second aspect of the present invention, there is a dimensional error in the manufacturing of the one-way spring, the position of the arm protruding from both ends is displaced, the inner diameter of the control drum side is smaller than that of the brake drum side, or a foreign matter is formed. Is between the control drum and
When assembling, if there is a displacement in each arm of the one-way spring, the displacement is corrected by using a first brake plate having a plurality of stoppers with respect to a second brake plate fitted in a fixed state on a fixed shaft. Since the position can be adjusted in the circumferential direction, the position can be easily corrected, and as a result, the soft-down section can be securely held by a simple operation. Furthermore, according to the third aspect, the braking force can be adjusted by an easy operation of arbitrarily rotating the adjustment gear forward or reverse, so that the magnitude of the rotational moment due to the weight of the handrail supported by the rotating body is adapted. As a result, a braking force is obtained, and a highly reliable free stop state can be secured.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional front view showing an embodiment of a handrail device according to the present invention.

FIG. 2 is an exploded perspective view of the embodiment.

FIG. 3A is a perspective view showing a main part of the angle clutch according to the embodiment, and FIG. 3B is a perspective view of a base frame;

FIG. 4 shows an angle clutch according to the embodiment;
(A) is a storage state of handrails or the like, (B) is a free stop state in which the handrails are rotated down from a storage position to a predetermined position near a use position, (C) is a state in which the handrails or the like are soft-down immediately before use, (D) is an explanatory view of a state of reverse rotation from the use position to a position immediately before use, and (E) is an explanatory view of a state of reverse rotation from the position immediately before use to the storage position.

FIGS. 5A to 5E are explanatory views showing arm positions when a one-way spring is turned around a control drum, and when a handrail or the like is rotated when the winding force is larger than a force applied to a brake drum. .

FIG. 6 is a perspective view schematically showing a usage example of one embodiment of a handrail device according to the present invention.

FIG. 7 is an explanatory diagram of a handrail device.

[Explanation of symbols]

 2 Rotating body 2a Horizontal cylinder 2b Vertical cylinder 3 Fixed shaft 4 Power spring 5 Brake device 6 Angle clutch 7 Brake force adjusting device 9 Handrail 11 Bearing 12 Control drum 12c Projection 12d Long hole 21 Damper 26 Side cap 31 Brake drum 32 First brake Plate 32a Stopper 33 Second brake plate 34 Elastic pressing body 35 One-way spring 35a Arm 35b Arm 36 Spring pin 37 Gear 38 Adjustment gear 38b Tooth profile

────────────────────────────────────────────────── ─── Continuation of front page (56) References JP-A-9-158435 (JP, A) JP-A-2-292480 (JP, A) JP-A-2-292481 (JP, A) JP-A-9-158 209535 (JP, A) JP-A-2-292482 (JP, A) JP-A-5-176820 (JP, A) Registered utility model 3029407 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , (DB name) E04F 11/18 A47K 17/02

Claims (3)

(57) [Claims] A horizontal cylinder fixed to the interior when the bearing and the control drum are coaxial and the rotation is fixed;
A rotating body in which the handrail is supported orthogonally, a fixed shaft in which the rotating body is rotatably supported through the bearing in the horizontal cylinder and the control drum, and an external force applied to the handrail A power spring interposed between the rotating body and the fixed shaft against the rotating force of the rotating body in the rotating and descending direction, and rotating and descending and rotating in the rotating and rising direction with respect to the rotating body. In order to resist the force, the damper is provided between the bearing, the control drum and the fixed shaft, and between the control drum and the side cap provided at the end of the fixed shaft. The brake drum is rotatable with respect to the shaft, the brake plate is rotatably fixed, the resilient pressing body is rotatable, and the arms at both ends are formed by the protrusions and brakes of the control drum. With a one-way spring wound around the control drum and the brake drum in a state of being hung on the stopper of the plate, it resists only the rotating force of the rotating body having the handrail in the rotating and descending direction. The power spring has a rotational moment due to its spring reaction force set to be smaller than a rotational moment due to its own weight of the rotating body, and a maximum rotational movement of the rotating body in a rotational descending direction due to an external force applied to the handrail. At the position immediately before use in the angle range, in order to release the braking force against the rotating body, an angle clutch that expands the one-way spring moves a spring pin that can engage with one arm of the one-way spring from the fixed shaft. It is formed by protruding and protruding outward from a long hole opened in the circumferential direction of the control drum. Door handrail apparatus according to claim. 2. A horizontal cylinder fixed to the interior when the bearing and the control drum are coaxial and the rotation is fixed,
A rotating body in which the handrail is supported orthogonally, a fixed shaft in which the rotating body is rotatably supported through the bearing in the horizontal cylinder and the control drum, and an external force applied to the handrail A power spring interposed between the rotating body and the fixed shaft against the rotating force of the rotating body in the rotating and descending direction, and rotating and descending and rotating in the rotating and rising direction with respect to the rotating body. In order to resist the force, the damper is provided between the bearing, the control drum and the fixed shaft, and between the control drum and the side cap provided at the end of the fixed shaft. A brake drum rotatable with respect to the shaft, a rotatable first brake plate having a plurality of stoppers on the outer periphery, and a second brake plate having a fixed rotation are axially aligned with each other. The brake plate is formed so as to be freely inserted and fitted and fixed so that the position adjustment in the direction around the axis can be freely adjusted, a resilient pressing body that is rotatable, and each arm at both ends is a protrusion of the control drum. With a control drum and a one-way spring wound around the brake drum in a state locked by the brake plate stopper, and resists only the rotational force of the rotating body having the handrail in the rotational descending direction. The power spring has a rotational moment due to its spring reaction force set to be smaller than a rotational moment due to its own weight of the rotating body, and a maximum rotation of the rotating body in the rotating downward direction due to an external force applied to the handrail. At a position immediately before use within the moving angle range, in order to release the braking force against the rotating body, the angle clutch for expanding the one-way spring is provided with a one-way spring. A handrail formed by projecting a spring pin, which can be locked to one arm of the spring, from the fixed shaft and outwardly from a long hole formed in a circumferential direction of the control drum. apparatus. 3. A horizontal cylinder fixed to the interior in a state where the bearing and the control drum are coaxial and the rotation is fixed, a rotating body having a handrail supported orthogonally thereto, and the horizontal cylinder. A fixed shaft through which the rotating body is rotatably supported through the inner bearing and the inside of the control drum; and a rotating shaft in a rotating lowering direction with respect to the rotating body due to an external force applied to the handrail. A power spring interposed between the rotating body and the fixed shaft, and provided over the bearing, the control drum, and the fixed shaft in order to resist a rotating force in the rotating downward and rotating upward directions with respect to the rotating body. A brake drum disposed between the damper, the control drum, and a side cap provided at an end of the fixed shaft, each of which is provided on the fixed shaft, and which is rotatable with respect to the fixed shaft; The brake plate, the rotatable elastic pressing body, and the arms at both ends are wound around the control drum and the brake drum with the arms of the control drum being engaged with the protrusion of the control drum and the stopper of the brake plate, respectively. A one-way spring, and a brake device that resists only the rotational force of the rotating body having the handrail in the rotating and descending direction, and the other side cap and the elastic pressing body provided at the end of the fixed shaft. In between, a gear that is screwed to the fixed shaft so as to be screwable in the axial direction, and is axially supported to penetrate the side cap and to be rotatable from the outside to the side cap, and to the inner end. A braking force adjusting device comprising an engraved tooth profile portion and an adjusting gear meshed with the gear, wherein the power spring has a rotating moment generated by a spring reaction force thereof. In order to release the braking force against the rotating body at a position immediately before use within a maximum rotation angle range of the rotating body in the rotating down direction of the rotating body due to an external force on the handrail, the one-way An angle clutch for expanding the spring is formed by projecting a spring pin, which can be locked to one arm of the one-way spring, from the fixed shaft and outwardly from an elongated hole formed in the circumferential direction of the control drum. A handrail device comprising: