JP7603956B2 - Bedside table - Google Patents

Description

The present invention relates to a bedside table that is placed in front of a person lying down from the side of the bed, has a lifting means for lifting the top plate, and is equipped with a safety mechanism that forcibly lifts the top plate using the lifting means if an upward force is applied to the top plate.

Beds that are mainly used in hospitals and nursing homes are equipped with bedside tables so that users can eat, read, work, etc.

This bedside table is provided with a lifting mechanism for raising and lowering the tabletop, allowing the tabletop to be raised and lowered according to the user's body position, etc.

In addition, in order to prevent the user's body from becoming pinched between the bed floor and the top of the bedside table, which rises when the bed is raised or reclined, the bedside table is provided with a safety mechanism that forcibly raises the top using a lifting means when an upward force acts on the top from below (see, for example, Patent Document 1).

JP 2014-108276 A

However, with the conventional bedside tables described above, if a force is applied to lift the top plate when moving (transporting) the bedside table, the safety mechanism is activated and the top plate is forced to rise, which can make it difficult to move (transport) the bedside table smoothly.

Therefore, in the present invention according to claim 1, in a bedside table which is positioned in front of a person lying down from the side of the bed, which raises and lowers the top plate using a lifting means, and which is equipped with a safety mechanism which forcibly raises the top plate using the lifting means when an upward force is applied to the top plate, a changeover switch is provided which can change the position between an ON position in which the safety mechanism is activated when an upward force is applied to the top plate, and an OFF position in which the safety mechanism is not activated even if an upward force is applied to the top plate, in addition to an operating lever provided on the lifting means for raising and lowering the top plate using the lifting means .

In addition, in the present invention according to claim 2, in the present invention according to claim 1, the safety mechanism is configured to enable the top plate to be raised and lowered by a predetermined vertical width relative to the lifting means, and to forcibly raise the top plate by the lifting means by raising the top plate by the vertical width relative to the lifting means, and the changeover switch is capable of changing its position between an OFF position in which the safety mechanism is not activated by inserting a switching piece into the vertical width gap to prevent the top plate from rising in the vertical width, and an ON position in which the safety mechanism is activated by retracting the switching piece from the vertical width gap to allow the top plate to rise in the vertical width.

In addition, in the present invention according to claim 3, in the present invention according to claim 1 or claim 2, the changeover switch is locked in the ON position and the OFF position, respectively.

And the present invention has the following advantages:

In other words, in this invention, a bedside table is placed in front of a person lying down from the side of the bed, and the tabletop is raised and lowered by a lifting means, and is equipped with a safety mechanism that forcibly raises the tabletop by the lifting means when an upward force is applied to the tabletop. A changeover switch is provided that can change the position between an ON position in which the safety mechanism is activated and an OFF position in which the safety mechanism is not activated. Therefore, when the bedside table is in use, the changeover switch can be set to the ON position to activate the safety mechanism, ensuring safety, and when the bedside table is moved (transported), the changeover switch can be set to the OFF position to prevent the safety mechanism from activating, allowing the moving (transporting) task to be performed smoothly.

In particular, when the safety mechanism is configured to enable the tabletop to be raised and lowered by a predetermined vertical width relative to the lifting means, and the tabletop is forced to rise by the lifting means as the tabletop rises by the vertical width relative to the lifting means, and the changeover switch is capable of changing between an OFF position in which the safety mechanism is not activated by inserting a switching piece into the vertical width gap to prevent the tabletop from rising by the vertical width, and an ON position in which the safety mechanism is activated by retracting the switching piece from the vertical width gap to allow the tabletop to rise by the vertical width, the changeover switch can be easily and reliably changed between the ON position and the OFF position.

In addition, if the changeover switch is designed to be locked in the ON and OFF positions, the changeover switch can be held in the ON and OFF positions, and the changeover switch can be easily and reliably switched between the ON and OFF positions.

1A is a plan view, FIG. 1B is a side view, and FIG. 1C is a front view showing a bedside table according to the present invention. FIG. 4 is an enlarged side cross-sectional view showing the safety mechanism (ON position). FIG. FIG. FIG. 4 is an enlarged side cross-sectional view showing the safety mechanism (OFF position). FIG.

The specific configuration of the bedside table according to the present invention will be described below with reference to the drawings.

As shown in FIG. 1, the bedside table 1 has the lower end of a support column 3 that extends vertically up and down attached to the rear of the base 2, a support case 4 attached to the upper end of the support column 3, and a top plate 5 that extends horizontally back and forth attached to the top of the support case 4. The support column 3 has a hollow outer support column 6 that has a rectangular cross section attached to the rear upper side of the base 2, and a hollow inner support column 7 that has a rectangular cross section attached to the support case 4 on the rear lower side of the top plate 5 is inserted into the hollow part of the outer support column 6 that has a rectangular cross section attached to the rear upper side of the base 2 so that the support column 3 can be raised and lowered at a distance. Casters are attached to the base 2, so that the bedside table 1 can be moved smoothly, and the casters on the support column 3 side can be provided with a locking function so that the bedside table 1 can be stationary. The bedside table 1 has the top plate 5 cantilevered on the upper end of one support column 3, but this is not limited to this, and the top plate 5 may be provided between the upper ends of multiple (for example, two) support columns 3. Furthermore, the support 3 has the inner support 7 on the top board 5 side and the outer support 6 on the base 2 side, but this is not limited to this, and the inner support 7 may be provided on the base 2 side and the outer support 6 on the top board 5 side.

The bedside table 1 is provided with a lifting means 8 for raising and lowering the top plate 5, and a safety mechanism 9 for forcibly raising the top plate 5 using the lifting means 8 when an upward force acts on the top plate 5 from below.

As shown in Figures 2 and 3, the lifting means 8 houses a telescopic cylinder 10 that can be extended and retracted up and down in the hollow part of the support 3, and houses an operating lever 11 inside the support case 4.

The lower end of the cylinder section 12 of the telescopic cylinder 10 is attached to the upper rear side of the base 2, while the bottom plate 14 of the support case 4 is placed on the upper end of the rod section 13 via a spacer 15. The spacer 15 is attached to the upper end of the rod section 13, and the upper small diameter section 16 is inserted into an insertion hole 17 formed in the bottom plate 14 of the support case 4, while the bottom plate 14 of the support case 4 is placed on the lower large diameter section 18, which is larger in diameter than the small diameter section 16.

The operating lever 11 is attached to the rear side plate 19 of the support case 4 via a shaft 20 and a bracket 21 so that it can swing up and down freely. The lever part 22 on the rear side of the shaft 20 protrudes outside the support case 4, while the operating part 23 on the front side of the shaft 20 abuts from above against a protrusion 24 formed on the upper end of the rod part 13 of the telescopic cylinder 10.

When the lever portion 22 of the operating lever 11 of the lifting means 8 is lifted upward, the operating portion 23 of the operating lever 11 presses the protrusion 24 of the rod portion 13 of the telescopic cylinder 10 downward, unlocking the telescopic cylinder 10. This causes the rod portion 13 of the telescopic cylinder 10 to advance upward relative to the cylinder portion 12, lifting the support case 4 upward and raising the top plate 5. When a downward force is applied to the top plate 5 with the telescopic cylinder 10 unlocked, the top plate 5 can be lowered.

The safety mechanism 9 is attached to the upper end of the telescopic cylinder 10 by a lower part 26 that extends from the front to the rear of an L-shaped plate 25 in a side view, and the operating part 23 of the operating lever 11 is inserted into a through hole 28 that extends vertically and is formed in an upper part 27 that extends vertically of the plate 25. Here, the operating lever 11 is in a state in which the lower tip of the operating part 23 abuts against the upper end of the protrusion 24, and the middle upper part of the operating part 23 abuts against the upper opening end of the through hole 28.

The lower part 26 of the plate 25 extends forward and backward in parallel with the bottom plate 14 of the support case 4 at a fixed distance (predetermined vertical width H), and is fixed to the upper end of the telescopic cylinder 10 by clamping the lower part 26 between the small diameter part 16 of the spacer 15 and a nut 29. In addition, the plate 25 abuts against the upper surface of the lower part 26 with a spring 31 provided on a retainer 30 attached to the bottom plate 14 of the support case 4.

As shown in Figure 4, when an upward force acts on the top plate 5 from below, the top plate 5 and the support case 4 rise up to the vertical width H without changing the vertical position of the plate 25, and as a result, the middle upper part of the operating part 23 of the operating lever 11 is pressed downward by the upper end of the opening of the through hole 28, and the operating lever 11 rotates upward and the lower tip of the operating part 23 presses downward the protrusion 24 of the rod part 13 of the telescopic cylinder 10, which unlocks the telescopic cylinder 10 and forcibly raises the top plate 5.

As shown in Figures 2 to 6, this safety mechanism 9 is provided with a changeover switch 32 that can be switched between an ON position in which the safety mechanism 9 is activated (the safety mechanism 9 is activated) and an OFF position in which the safety mechanism 9 is not activated (the safety mechanism 9 is not activated).

The changeover switch 32 has a shaft 34 rotatably inserted through a through hole 33 formed in the bottom plate 14 of the support case 4, an operating unit 35 attached to the underside of the shaft 34 (underside of the bottom plate 14), and a switching unit 36 attached to the upper side of the shaft 34 (upper side of the bottom plate 14). By rotating the operating unit 35 from outside the support case 4, the switching unit 36 inside the support case 4 can be rotated.

The operating section 35 is formed with a knob 37 that protrudes linearly downward.

At one end of the switching section 36, a switching piece 38 is formed that is approximately the same height as the vertical width H, which can be inserted between the underside of the lower part 26 of the plate 25 and the upper surface of the bottom plate 14 of the support case 4, and at the other end, a locking body 39 is formed via an elastically deformable support body 40. At predetermined positions (two places) of the bottom plate 14 of the support case 4, through-holes 41 and 42 into which the locking body 39 engages are formed.

The changeover switch 32 is in the ON position when the switching piece 38 is retracted from the vertical width H between the underside of the lower part 26 of the plate 25 and the upper surface of the bottom plate 14 of the support case 4, as shown in Figure 2 and Figure 3. When an upward force acts on the top plate 5 from below, as shown in Figure 4, the top plate 5 rises, and the operating part 23 of the operating lever 11 presses the protrusion 24 of the rod part 13 of the telescopic cylinder 10 to unlock the telescopic cylinder 10 and activate the safety mechanism 9, which forcibly raises the top plate 5.

As shown in Figures 5 and 6, the changeover switch 32 is in the OFF position when the switching piece 38 is inserted into the vertical width H between the underside of the lower part 26 of the plate 25 and the upper surface of the bottom plate 14 of the support case 4. Even if an upward force acts on the top plate 5 from below, the top plate 5 is prevented from rising by the switching piece 38, and the safety mechanism 9 is not activated.

The changeover switch 32 can be changed from the ON position to the OFF position, and vice versa, by rotating the operating part 35. In the ON position or OFF position, the locking body 39 engages with one of the locking holes 41, 42, and the switch is held in the ON position or OFF position.

As described above, the bedside table 1 is placed in front of the person lying down from the side of the bed, and the top plate 5 is raised and lowered by the lifting means 8, and is provided with a safety mechanism 9 that forcibly raises the top plate 5 by the lifting means 8 if an upward force is applied to the top plate 5.

The bedside table 1 is provided with a changeover switch 32 that can change the position between an ON position in which the safety mechanism 9 is activated and an OFF position in which the safety mechanism 9 is not activated.

Therefore, in the bedside table 1 configured as described above, when in use, the changeover switch 32 can be set to the ON position to activate the safety mechanism 9, ensuring safety, and when moving (transporting) the bedside table 1, the changeover switch 32 can be set to the OFF position to prevent the safety mechanism 9 from being inadvertently activated, allowing the bedside table 1 to be moved (transported) smoothly.

The bedside table 1 is also configured so that the top plate 5 can be raised and lowered by a predetermined vertical width H relative to the lifting means 8, and a safety mechanism 9 is configured so that the top plate 5 is forced to rise by the lifting means 8 when the top plate 5 rises by the vertical width H relative to the lifting means 8. The bedside table 1 is configured to be able to change its position between an OFF position in which the top plate 5 is prevented from rising by the vertical width H and the safety mechanism 9 is not activated by inserting the switching piece 38 of the changeover switch 32 into the gap of the vertical width H, and an ON position in which the top plate 5 can be raised by the vertical width H and the safety mechanism 9 is activated by retracting the switching piece 38 from the gap of the predetermined vertical width H.

Therefore, with the bedside table 1 configured as described above, the position of the changeover switch 32 can be easily and reliably changed between the ON position and the OFF position.

The bedside table 1 is also configured so that the changeover switch 32 is locked in the ON and OFF positions.

Therefore, in the bedside table 1 configured as described above, the changeover switch 32 can be held in the ON or OFF position, preventing the changeover switch 32 from accidentally changing position, and allowing the changeover switch 32 to easily and reliably change between the ON and OFF positions.

In addition, the bedside table is provided with a detachable stopper in the vertical width H, and the safety mechanism 9 can be switched ON and OFF by removing the stopper attached at the time of delivery after delivery, but this is not preferable because it is difficult to attach the stopper again after removing it, and there is a risk of losing the stopper. Therefore, in the bedside table 1, the changeover switch 32 that can change between the ON position and the OFF position is provided in a manner that makes it impossible to remove it from the bedside table 1. Here, in the bedside table 1, the changeover piece 38 of the changeover switch 32 is configured to be inserted or retracted in the vertical width H, but this is not limited to this, and any configuration that allows the safety mechanism 9 to be switched ON and OFF by the changeover switch 32 provided in the bedside table 1 (for example, a configuration by rotating, sliding, or pressing the changeover piece 38) may be used. In addition, the changeover switch 32 may be provided on the bedside table 1 regardless of whether it is in the ON or OFF position, and the location where it is provided (for example, below, behind, left or right side of the support case 4, etc.) is not limited.

REFERENCE SIGNS LIST 1 Bedside table 2 Base 3 Support 4 Support case 5 Top plate 6 Outer support 7 Inner support 8 Lifting means 9 Safety mechanism 10 Telescopic cylinder
11 Operating lever 12 Cylinder section
13 Rod portion 14 Bottom plate
15 Spacer 16 Small diameter section
17 Insertion hole 18 Large diameter section
19 Rear plate 20 Axle
21 Bracket 22 Lever part
23 Actuating part 24 Protrusion
25 Plate 26 Lower part
27 Upper part 28 Through hole
29 Nut 30 Retainer
31 Spring 32 Changeover switch
33 Through hole 34 Shaft
35 Operation section 36 Switching section
37 Knob 38 Switching piece
39: locking body; 40: support body
41,42 Engagement hole

Claims (3)

A bedside table is disposed in front of a person lying down from the side of a bed, and has a top plate that is raised and lowered by a lifting means and a safety mechanism that forcibly raises the top plate by the lifting means when an upward force is applied to the top plate,
This bedside table is characterized in that, in addition to an operating lever provided on the lifting means for lifting and lowering the tabletop by the lifting means , a changeover switch capable of changing the position between an ON position where a safety mechanism is activated when an upward force acts on the tabletop and an OFF position where the safety mechanism is not activated even if an upward force acts on the tabletop is provided. The safety mechanism is configured to enable the tabletop to be raised and lowered by a predetermined vertical width relative to the lifting means, and to forcibly raise the tabletop by the lifting means by raising the tabletop by the vertical width relative to the lifting means,
The bedside table of claim 1, characterized in that the changeover switch is capable of being changed between an OFF position in which the top plate is prevented from rising in the vertical width by inserting a switching piece into the vertical gap and the safety mechanism is not activated, and an ON position in which the top plate is allowed to rise in the vertical width by retracting the switching piece from the predetermined vertical gap and the safety mechanism is activated. The bedside table according to claim 1 or 2, characterized in that the changeover switch is locked in the ON position and the OFF position, respectively.

Images