JP5804406B2 - Holding device for operation handle in fixing mechanism such as grip for bed - Google Patents

Description

  The present invention relates to a holding device for an operation handle in a fixing mechanism such as a side rail or a bed grip that is mounted on a bed.

  Conventionally, there are side rails and bed grips that are used by being attached to mounting holes or the like provided in a side frame of the bed. The former side rail is used to prevent the comforter and the user from falling, or to assist in turning over or getting up on the bed. The latter bed grip is used as a grip for easily holding a sitting position, standing up, and changing.

Some of the former side rails are made slightly loose in order to facilitate attachment and detachment. However, depending on the use situation, it may be desirable that the side rails can be firmly fixed so that they are not accidentally removed. The latter bed grip is intended to support the user's body and must be able to be firmly fixed.
There are various fixing mechanisms for such side rails or bed grips, and one of them is as follows.

This fixing mechanism is provided in a state in which the leg portion of one of the pair of columns fitted in a plurality of mounting holes provided in the side frame of the bed is eccentric with respect to the axis of the column body. Is constructed so that it can be freely rotated around the axis.
This can be fixed firmly by simply rotating the leg part, and the distance between the other support column is displaced and becomes narrower or wider than the distance between the mounting holes of the side frame. It is what I did.

JP 7-298960 A

However, the above-described fixing mechanism exerts a sufficient fixing force when fixed to the bed, but when it is detached from the bed, the operation handle provided on the leg is in a rotatable state. There is a problem of unnecessary rotation. Further, when fixing to the bed, it is possible to determine whether or not the operation handle is fixed depending on the direction of the operation handle, but there is a problem that it is difficult to understand the lock position in the case of a person unfamiliar with the operation.
Therefore, the problem to be solved is a holding mechanism capable of holding the operation handle in a state where the operation handle faces the fixed position in the fixing mechanism that rotates the eccentric leg portion in this way and fixes it to the bed. Is to provide a device.

According to the present invention, an operation handle for allowing a rotation operation to be freely operated is fixed to one of the pair of support columns provided in the fixed fence portion, the support column is supported by the fixed fence portion, and the support column is rotated on the support column. A side rail provided with a fixing mechanism that is integrally provided with an eccentric shaft portion that is eccentric with respect to the moving shaft center, and is configured to be mounted on a bed by displacing the space between the operation handle and the other support column. Alternatively, in the bed grip, a holding groove for holding the operation handle is provided on the operation handle side of the holding device in order to dispose the holding device between the operation handle and the fixed fence portion when the fixing mechanism is locked. In addition, the main feature is that an attachment piece that is elastically deformed so that the holding device swings up and down as the operation handle is rotated is integrally provided.
Further, the contact portion of the holding device with the operation handle is an inclined portion that obliquely protrudes in a direction away from the support column so as to intersect the rotation surface of the operation handle.
In addition, the cross-sectional shape of the base pipe that becomes the support mounting portion of the fixed fence portion is rectangular, and the holding device is provided with a guide piece that guides swinging along the base pipe, and a through hole is provided. The column having the eccentric shaft portion is loosely inserted into the through hole and fixed to the base frame .

The holding device for the operation handle in the fixing mechanism using the eccentric shaft portion such as the bed grip of the present invention is disposed between the operation handle and the fixed fence portion at the time of locking. The operation handle is held by a holding groove provided in the holding device. This is because an attachment piece provided as an attachment portion to the fixed fence portion in the holding device is elastically deformed by the operation handle coming into contact with the holding device by the turning operation of the operation handle, and the holding device is moved up and down. It is swung. And if the said operation handle is located in the holding groove provided in the holding | maintenance apparatus, rotation of an operation handle will be restrained.
The holding device configured as described above has an effect of intuitively recognizing the lock position of the operation handle even for a person unfamiliar with the operation. In addition, even when it is not attached to the bed , there is an advantage that the operation handle can be held and unnecessary rotation can be prevented. Furthermore, the object can be achieved with the minimum number of parts and can be provided at low cost.
In addition, since the contact portion of the holding device with the operation handle is an inclined portion as described above, the holding device is smoothly swung when the operation handle is rotated. That is, there is an advantage that an increase in operating force can be prevented.
Further, the holding device is provided with a guide piece along the base pipe and a through hole through which the support column on the side to be rotated is inserted. The support device is configured to cover the support column mounting portion. Accordingly, there is an advantage that not only the holding device can be smoothly swung up and down, but also the appearance can be improved.

Whole front view showing a grip for a bed provided with a safety device of a fixing mechanism of the present invention The top view which shows the rotation state of the grip part The whole perspective view Explanatory drawing which shows the structure of a grip part Explanatory diagram showing the overall configuration Cross section of the main part showing the action of the rotating mechanism (when locked) Cross section of the main part showing the action of the rotating mechanism (when unlocked) Cross-sectional view of the main part showing the action of the turning mechanism (when turning) Explanatory drawing showing a holding device Overall perspective view showing the holding state of the holding device Cross section of the main part Overall perspective view showing the operating state of the holding device Cross section of the main part

  Between the side rail or the fixed rail of the bed grip and the column that rotates to fix it to the bed, with the minimum number of parts, a holding device is placed and the column is rotated without impairing the appearance. The operation handle for operation can be held at the lock position.

Embodiments of the present invention will be specifically described below with reference to the drawings.
In order to describe one embodiment of the present invention, a bed grip is used. However, this is not limited to the bed grip, and there is no problem even if it is a side rail as described above.

As shown in FIGS. 1 to 3, the bed grip 1 is mainly connected to a fixed fence portion 2 and one side portion of the fixed fence portion 2 via a rotation mechanism 3 so as to be rotatable. It consists of a grip part 4. In addition, although the said fixed fence part 2 is equipped with the fixing means 5 for attaching to the attachment holes h, h, ... provided in the side frame _Bf of the bed B, this fixing means 5 is mentioned later.

First, the fixed fence portion 2 is configured by fixing a frame pipe 7 bent in a U-shape to the base pipe 6 and fixing reinforcing members 8, 8,. .
On the other hand, the grip portion 4 is configured by attaching a grip member 11 to a grip frame 10. As shown in FIG. 4, the grip frame 10 is fixed to a support pipe 12 with a reinforcing pipe 13 bent in an L shape, and the holes 14a, 14a,... For fixing the grip member 11 are fixed. A mounting plate 14 having a perforation is fixed.

  And the fixed fence part 2 and the grip part 4 which were comprised in this way are arranged in a row so that rotation operation is possible and it can hold | maintain at a predetermined angle with the rotation mechanism 3 comprised as follows.

First, the rotation mechanism 3 provided in the fixed fence portion 2 will be described.
A stainless pipe 15 is fixed to one end of the base pipe 6. Note that the axial center O _{1 of the} stainless pipe 15 is configured to be the rotational center of the grip portion 4.
Further, an internal tooth plate 16 having a plurality of grooves 16a, 16a,... In the present embodiment, the number of teeth is eight. A stopper pin 17 is fixed in a direction perpendicular to the axial center O _{1 of the} steel pipe 15 in a state of projecting inside the steel pipe 15 so as to be positioned below the internal tooth plate 16.

On the other hand, an attachment support plate 18 and a lock portion support plate 19 fixed to the frame pipe 7 are disposed above the stainless pipe 15. The mounting support plate 18 are drilled pores portion 18a for inserting the support pipe 12 becomes equal to the axis O _1. Further, the lock portion support plate 19 has a rotation bearing portion 19a for rotating a lock plate 20 (to be described later) within a predetermined range and holes 19b, 19b serving as attachment portions of the lock portion covers 21, 21. Is provided. Further, a rotation shaft portion 19 c is provided on the upper portion of the lock portion support plate 19.

Next, the turning mechanism 3 provided in the grip part 4 is provided with a stopper plate 22 having a size approximately equal to the outer diameter of the internal tooth plate 16 and the internal tooth plate at the lower end of the support pipe 12 of the grip frame 10. A regulating pin 24 that regulates the rotation range by contacting the stopper pin 17 and the external tooth plate 23 that meshes with 16 is fixed.
The cover pipe 25 is fixed to cover the meshing portion between the inner tooth plate 16 and the outer tooth plate 23. In FIG. 4, a part of the cover pipe 25 is cut away to show the internal structure.

The grip portion 4 configured in this way is inserted into the hole portion 18a of the mounting support plate 18 through the upper end of the support pipe 12, and then the external tooth plate 23 and the internal tooth plate 16 at the lower end portion of the support pipe 12. Are engaged. At this time, the lower surface of the stopper plate 22 is in contact with the upper surface of the internal tooth plate 16 and cannot move further downward. That is, when the grip portion 4 is moved to the lower limit, the inner tooth plate 16 and the outer tooth plate 23 are engaged with each other.
On the other hand, a rotation bushing 26 is inserted into the rotation shaft portion 19 c provided on the lock portion support plate 19, and the rotation bushing 26 is fitted to the grip member 11.

Next, the configuration of the lock portion that locks the meshing state of the internal tooth plate 16 and the external tooth plate 23 will be described.
First, the lock plate 20 is configured integrally with a stopper piece 20a, an operating piece 20b, and a rotating shaft 20c. More specifically, the stopper piece 20a and the actuating piece 20b are arranged in an L shape, and a rotation shaft 20c is integrally provided at the corner.
The rotary shaft 20c is inserted into the rotary bearing portion 19a of the lock portion support plate 19, and springs 27 are hooked on the latch pieces 19d and 20d provided on the lock plate 20 and the lock portion support plate 19, respectively. By stopping, the lock plate 20 is urged to rotate upward.
The operating piece 20b supports a lock release button 28 described later. The stopper piece 20a is a part for preventing the grip portion 4 from sliding up and down by contacting the upper end of the support pipe 12 of the grip portion 4 when the lock plate 20 is rotated upward. is there. For this reason, the stopper piece 20a has an arc portion concentric with the rotation shaft 20c or an oblique portion tangent to the arc so that the amount of change in the distance from the upper end of the support pipe 12 can be changed even when the lock plate 20 is rotated. It is preferable to make it small so that the smooth movement of the lock plate 20 and the play of the grip portion 4 are minimized as much as possible.

Then, with the lock release button 28 inserted from below the guide pipe 29, the operating piece 20b of the lock plate 20 is inserted into the guide groove 29a provided in the guide pipe 29, and the guide 18 is inserted into the hole 18a. The lower end of the pipe 29 is inserted. An upper end of the guide pipe 29 is provided with a flange, the upper portion of the lock release button 21 is about the same size as the flange, and the lower portion is about the inner diameter of the guide pipe 29 to prevent the guide pipe 29 from coming off upward. It is said.
Further, the lock portion covers 21 and 21 are fixed to the lock portion support plate 19, and the guide pipe 29 is fixed so that the groove portions 29 b provided in the guide pipe 29 are sandwiched by the lock portion covers 21 and 21. .

The rotating mechanism 3 of the bed grip 1 configured as described above operates as shown in FIGS.
In the normal state shown in FIG. 6, the internal tooth plate 16 and the external tooth plate 23 are engaged with each other, and the grip portion 4 cannot be rotated. More specifically, the lock plate 20 is rotated upward by a spring 27, and the stopper piece 20 a of the lock plate 20 is in contact with the upper end of the support pipe 12 of the grip portion 4. Cannot be slid upward, and the meshing state of the internal tooth plate 16 and the external tooth plate 23 cannot be released.

To rotate the grip portion 4 from this state, as shown in FIG. 7, the lock release button 28 is pushed down against the spring 27 and the lock plate 20 is rotated downward. Then, the stopper piece 20a of the lock plate 20 is separated from the upper end of the support pipe 12, and a space S is formed between the operating piece 20b and the support pipe 12. In this state, the grip part 4 can be slid upward.
In addition, since the meshing state of the internal tooth plate 16 and the external tooth plate 23 is not released only by pressing the lock release button 28, the grip portion 4 cannot be rotated. That is, even if the lock release button 28 is accidentally pressed, an unintentional rotation operation does not occur, so that it is safe.

  When the grip portion 4 is slid upward from the above-described state, the meshing state of the internal tooth plate 16 and the external tooth plate 23 can be released as shown in FIG. 8, and the grip portion 4 can be freely rotated. It is in a state. After the grip portion 4 is rotated to a desired angle, the internal tooth plate 16 and the external tooth plate 23 are engaged with each other by sliding downward, and the lock plate 20 is automatically rotated upward by the urging force of the spring 27. The locked state is reached, and the locked state cannot be rotated.

In the drawing, the internal tooth plate 16 and the external tooth plate 23 are formed so that they can be set every 45 degrees. However, the angle can be set more finely by increasing the number of teeth. The number of teeth can be reduced and the grip portion 4 can be appropriately set to a state where the grip portion 4 is linear and perpendicular to the fixed fence portion 2, and is not particularly limited.
Furthermore, although it is configured by meshing the internal tooth plate 16 and the external tooth plate 23, it can be configured to be engaged with any of the tooth grooves by fixing one of the pins or the latching piece or the like. good.
Further, in this embodiment, when the grip portion 4 is rotated to the positions (a) and (b) shown in FIG. 2, the stopper pin 17 and the regulation pin 24 are brought into contact with each other so as not to rotate any further. It is composed. This is for preventing pinching between the fixed fence portion 2 and the grip portion 4.

According to the rotating mechanism 3 configured as described above, an operation of lifting and rotating the grip portion 4 from an operation of pressing the lock release button 28 while holding the grip portion 4 with one hand can be performed. Therefore, the operation is simple and it is not necessary to use both hands, so there is no trouble. Further, in order to release the lock, the grip portion 4 is slid upward while the lock release button 28 is pressed down. Therefore, the grip portion 4 can be rotated only by pressing the lock release button 28 by mistake. It cannot move and is safe.
Furthermore, this rotating mechanism 3 has an effect that there are few components and can be provided at low cost.

Next, the fixing mechanism 5 provided in the bed grip 1 configured as described above will be described.
The fixing mechanism 5 includes a pair of support columns 30 and 31 arranged so as to protrude below the base pipe 6. First, one support column 30 is inserted and fixed in a fitting hole 6 a provided in the base pipe 6.
As shown in FIG. 11, the other support column 31 has a boss 32 fixed to a fitting hole 6a provided in the base pipe 6 as an attachment portion. The boss 32 was eccentric with respect to the axis O ₂ of the flange portion 31b and the shaft portion 31a, a larger diameter than the shaft portion 31a and a shaft portion 31a serving as the rotation axis during rotational operation The column 31 formed integrally with the eccentric shaft portion 31c is inserted and prevented from coming off. In FIG. 11, O ₃ indicates the axis of the eccentric shaft portion 31c.
An operation handle 33 extending in the horizontal direction is fixed to the collar portion 31b.
In addition, protective caps 34 and 34 are attached to the upper ends of the respective columns 30 and 31 so that the futons and the like are not caught.

The fixing mechanism 5 configured as described above has the mounting holes h and h provided in the bed frame _Bf of the bed B such that the spacing between the support column 30 and the eccentric shaft portion 31c is in a state where the operation handle 33 is directed to the grip portion 4. It is comprised so that it may become equal to the space | interval of.
In this state, after inserting the support columns 30 and 31 into the mounting holes h and h, the operation handle 33 is horizontally rotated so as to face the other support column 31 side. Then, as described above, since the eccentric shaft portion 31c is provided eccentrically with respect to the shaft portion 31a, the interval between the support column 30 and the eccentric shaft portion 31c is narrower than the interval between the mounting holes h and h. The bed grip 1 is fixed by a fixing force.
Needless to say, since the operation handle 33 can be rotated 360 degrees, the fixing mechanism 5 can be attached to either the left or right side of the bed B.

Next, the holding device 35 for the operation handle 33 in the fixing mechanism 5 configured as described above will be described.
The holding device 35 has a box shape as shown in FIG. 9, and an upper portion is opened, and an inverted L-shaped attachment piece 35a for attachment to the lower surface of the base pipe 6 is provided inside. A mounting hole 35b is provided below the mounting piece 35a. In addition, a through hole 35 c is provided on the bottom surface, and the boss 32 and the column 31 are inserted in a state where the holding device 35 is attached to the base pipe 6.
Further, a holding groove 35 d of the operation handle 33 is provided on the bottom surface of the holding device 35. The bottom surface on the side of the holding groove 35d does not come into contact with the base end side of the operation handle 33 when the operation handle 33 is rotated, and the portion gradually separating from the base end as the lock state is approached An inclined portion 35e is provided so as to project obliquely downward so as to be in contact with the bottom surface of the device 35.
In this embodiment, since a square pipe is used for the base pipe 6, both side surfaces are extended along the side surface of the base pipe 6 so that the holding device 35 swings up and down. 35f.
As shown in FIG. 11, the holding device 35 configured in this manner is attached by attaching the attachment piece 35a to the base pipe 6 with screws.

The holding device 35 attached as described above operates as follows according to the rotation position of the operation handle 33 of the fixing mechanism 5 of the present application.
First, the struts 30 and 31 of the bed grip 1 configured as described above are inserted into the side frame _Bf of the bed B. At this time, the operation handle 33 is directed toward the grip portion 4 side.
In order to fix to the bed B, the operation handle 33 is horizontally rotated approximately 180 degrees. When the operating handle 33 approaches the locked state, as shown in FIG. 12, the operating handle 33 comes into contact with the inclined portion 33e provided on the lower surface of the holding device 35, the mounting piece 35a bends, and the guide The holding device 35 swings upward along the base pipe 6 guided by the piece 35f.
Further, when the operation handle 33 is rotated, as shown in FIG. 10, the holding device 35 swings downward at the same time as the operation handle 33 is positioned in the holding groove 35d, and the operation handle 33 is moved by the holding groove 35d. Retained. As described above, when the operation handle 33 is positioned in the holding groove 35d, it can be easily confirmed that the holding device 35 returns from the tilted state to the normal state and is in the locked state.
It should be noted that the mounting piece 35a of the holding device 35 is formed of a material that is easily elastically deformed, such as resin, so that it can be held in the locked position with almost no change in operating force during the turning operation. be able to.

  Further, the holding device 35 can hold the operation handle 33 by positioning the operation handle 33 in the holding groove 33d even when the bed grip 1 is not attached to the bed B, which is unnecessary. Rotation can be prevented.

As described above, the holding device 35 is swung upward as the mounting piece 35a is bent in accordance with the turning operation of the operation handle 33, and is swung downward when the operation handle 33 is positioned in the holding groove 35d. In this state, the operation handle 33 can be held.
Therefore, even a person who is unfamiliar with the operation can intuitively recognize the lock position, so that an accurate lock operation can be performed.

DESCRIPTION OF SYMBOLS 1 Bed grip 2 Fixed fence part 3 Rotating mechanism 4 Grip part 5 Fixing mechanism 6 Base pipe 30 Support column 31 Support column 31c Eccentric shaft part 33 Operation handle 35 Holding device 35a Mounting piece 35c Through-hole 35d Holding groove 35e Slope part 35f Guide piece B Bed

Claims (3)

An operation handle for allowing the rotary operation to be freely operated is fixed to one of the pair of support columns provided in the fixed fence portion, and the support column is supported by the fixed fence portion. A side rail or bed grip provided with a fixing mechanism that is integrally provided with an eccentric shaft portion that is eccentric with respect to the other and is attached to the bed by shifting the distance between the operation handle and the other column. In order to dispose the holding device between the operation handle and the fixed fence portion when the fixing mechanism is locked, a holding groove for holding the operation handle is provided on the operation handle side of the holding device, and the operation A holding device for an operating handle, wherein a mounting piece is provided integrally to elastically deform so that the holding device swings up and down in accordance with a turning operation of the handle.   The contact portion of the holding device with the operation handle is an inclined portion that obliquely protrudes in a direction away from the support column so as to intersect the rotation surface of the operation handle. The holding device as described. The base pipe serving as the support mounting portion of the fixed fence portion has a rectangular cross-sectional shape, and the holding device is provided with a guide piece for guiding the swing along the base pipe, and a through hole is provided to provide the eccentricity. The operation handle holding device according to claim 1 or 2, wherein a support column having a shaft portion is loosely inserted into the through hole and fixed to the base frame .

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