JP6070981B2 - table - Google Patents

Description

  The present invention relates to a table capable of adjusting the height of a top plate.

  In the table in which the top plate is fixed on the left and right extendable legs with the movable leg supported to be movable up and down on the fixed leg, the applicant of the present application has a vertically long rack on either the fixed leg or the movable leg. Each of the lock members is attached to the opposite side of the rack, the top plate is raised by pulling up the top plate, and the operation lever provided between the left and right telescopic legs is pulled forward to remove the lock member from the rack. An application was made for a lifting device for the top plate on the table where the lock claw was released and the top plate was lowered, and a utility model was registered (No. 3172244).

  In the case of the actual No. 3172244, when the top plate is lowered to a desired position, it is difficult for one person to handle, especially because it is difficult to handle alone, because the operation rod between the telescopic legs must be pulled forward while holding the top plate. It was not suitable for use by free elderly people or wheelchairs.

  In Japanese Patent No. 2978963, a top plate holder is mounted on a pair of legs and a vertical and horizontal frame provided between the legs, and the top plate is replaced with a plurality of receiving grooves formed on the top plate holder. A table that adjusts the height of the top plate by freely inserting it is disclosed.

  This table is extremely difficult for an elderly person with a physical disability or a person using a wheelchair to pull out the top plate from the receiving groove and replace it with another receiving groove, and it is easy to drop heavy objects on the top plate. When the object was placed, the height of the top board could not be adjusted.

Utility Model Registration No. 3172244 Japanese Patent No. 2978963

  An object of this invention is to provide the table which can adjust the height of a top plate easily according to a user's physique or the height of a wheelchair.

The table of claim 1 according to the present invention comprises a support body in which left and right support legs are connected by a curtain plate , and a lift body in which a top plate is fixed to a sliding plate that moves up and down along the front surface of the curtain plate of the support body. A rack with teeth facing in the same direction is fixed in a pair of left and right guide rails provided vertically on the front surface of the curtain plate, and a lock member for raising and lowering the inside of each guide rail is provided on the back surface of the sliding plate. mounted, the lock claw of the L-shaped axially mounted inside the case in this locking member, causes fitted in the rack and protrudes from notch having a toothed portion of the tip on one side of the case to the outside of the case, A pair of left and right pins protruding from the back of the linkage provided with a spring for locking one side edge of the locking claw to the upper edge of the notch of the case and arranged to move to the left and right of the sliding plate but the long hole formed in the left and right of the case, and the bent portion of the locking pawl Each is inserted into set the hole, the front end of one of the pins passing through the connecting rod is, is projected from a long hole formed in the slide plate forward, the front end of the protruding pin, the front surface of the sliding plate The middle part is loosely fitted in the connecting hole provided at the lower end of the swinging rod pivotally attached to the sliding plate with the lower end inwardly inclined and the upper end inclined outwardly. bent arm provided with operating piece at the tip is continuously provided is provided between the rear end lower surface of the operation piece and top plate gap is formed, by pulling the operation lever, swing rod rotates The left and right lock claws are configured to be separated from the rack against the spring.

  In the first aspect of the invention, when the top plate is lifted, the lock claw slides while being engaged with and disengaged from the rack teeth by the urging force of the spring, and the top plate is raised. When the top plate is at an appropriate height, when the hand is released from the top plate, the lock claw is supported by the rack teeth by its own weight, and one side edge of the lock claw is the upper end of the notch provided in the case. Since it is supported by the edge, the top plate stops at the desired height.

  When the operation piece is picked up together with the top plate, the swinging rod pivots outward about the pivot axis, the linkage moves laterally outward, and the left and right pins move laterally outward. When it is moved, the left and right lock claws disengage from the rack against the spring. While holding the operation piece and releasing the left and right lock claws from the rack, the top plate is lowered, and when it reaches the appropriate height, when the hand is released from the operation piece, the swing rod is connected to the lower end with the pivot as the center. The hole rotates inward and the linkage moves horizontally in the same direction. Along with this, the left and right lock claws are rotated by the urging force of the spring, the tooth profile at the tip engages with the teeth of the rack, and one side edge of the lock claw is aligned with the upper edge of the notch provided in the case. The top plate stops with support.

The invention of claim 2 according to the present invention, the rear of the top plate in claim 1, wherein the distal end has pivotally attached the wedge to escape fitted in the gap between the top plate lower surface and the rocking lever of the operation piece Is.

  Similarly to the first aspect of the present invention, the top plate is lifted or the top plate is lowered while grasping the operation piece to adjust the top plate to a desired height, and then the wedge is rotated to By fitting into the gap with the operating piece, the top plate is completely locked up and down.

  The table of claim 1 according to the present invention can raise the top plate by raising the top plate as described above, and lower the top plate while pulling up the operation piece with a hand holding the top plate. It is possible to operate with the hand extended while sitting in a wheelchair, and even a handicapped person can use it easily and safely.

Table according to claim 2, after adjusting the height of the top plate, wedge and is rotated, when fitting the tip in the gap between the top plate and the operation piece, the lifting of the top plate is fully locked Therefore, elderly people who are physically handicapped and those who are in wheelchairs can use it with peace of mind.

It is a top view which shows embodiment of the table which concerns on this invention. It is a front view of embodiment same as the above. It is a side view of embodiment same as the above. It is a partial cross section figure of the principal part in embodiment same as the above. It is a longitudinal cross-sectional view which shows the principal part in embodiment same as the above. In embodiment same as the above, it is a longitudinal cross-sectional view which shows the principal part of the state which latched the lock claw. In embodiment same as the above, it is a longitudinal cross-sectional view which shows the principal part of the state which cancel | released the lock nail | claw. It is a top view which shows another embodiment of the table which concerns on this invention. It is a front view of another embodiment same as the above. It is a side view of another embodiment same as the above.

  Hereinafter, an embodiment of a table according to the present invention will be described in detail with reference to FIGS.

Reference numeral A is a support body in which the left and right support legs 1 are connected by a curtain plate 2, and reference numeral B is a lift body in which a top plate 4 is fixed to a sliding plate 3 that moves up and down along the curtain plate 2 of the support body A.
A pair of left and right guide rails 5 that are long in the vertical direction are disposed on the front surface of the curtain plate 2. The guide rail 5 has a front central portion that opens over the entire length, and is provided with guide grooves 5a and 5b on both sides. The guide groove 5a and the guide groove 5a are provided with a standard tooth rack 6 over the entire length. Are fixed so that the teeth are in the same direction.

A pair of left and right lock members 7 are mounted on the rear surface of the sliding plate 3 so as to protrude and are fitted into the guide rails 5 so as to be movable up and down. The lock member 7 has the upper ends of L-shaped lock claws 10 and 10 pivotally attached to the upper part of a case 9 provided with a notch 8 on the rack 6 side. The lock claw 10 is rotated by the urging force of the spring 11 until the one side edge 12 comes into contact with the upper end edge 13 of the notch 8 , and the tooth profile 14 formed at the tip protrudes from the notch 8 to the outside of the case 9. The teeth of the rack 6 are engaged. An auxiliary gear 16 provided with a bearing hole 15 is rotatably attached to the lower portion of the case 9. Reference numerals 9a and 9b are guide pieces fixed to the upper and lower sides of the case 9, and facilitate the sliding of the case 9 that moves up and down in the guide rail 5.

  Reference numeral 17 denotes a linkage disposed on the back surface of the sliding plate 3 and is fitted in the horizontal groove 18 so as to be movable left and right. A pin 19 is passed through one end of the linkage 17 and a pin 20 is projected from the other end. The rear ends of both pins 19 and 20 are inserted into a long hole 21 formed in the left and right cases 9 and a through hole 22 formed in a bent portion of the lock claw 10, respectively. The front end of the pin 19 passes through a long hole 23 formed in the sliding plate 3.

  Reference numeral 24 denotes a rocking rod having an intermediate portion pivotally attached to the front surface of the sliding plate 3 by an axis S, and is pivotally attached with a balance in which the lower end is inclined to the inside of the sliding plate 3 and the upper end is inclined to the outside of the sliding plate 3. Has been. A bifurcated coupling hole 25 is provided at the lower end of the swinging rod 24, and the front end of the pin 19 pushed to the rack 6 side together with the lock claw 10 by the spring 11 is located in the bifurcated coupling hole 25 as shown in FIG. It is loosely fitted on one side. A bending arm 26 is connected to the upper end of the swinging rod 24, and an operation piece 27 is provided at the tip thereof. A gap 28 is formed between the operation piece 27 and the top plate 4.

  Reference numeral 29 denotes a wedge pivotally attached to the lower surface of the top plate 4. The wedge 29 is rotated to fit the tip into the gap 28, thereby preventing the operating piece 27 from being pulled up.

  In the embodiment of the table according to the present invention, when the left and right sides of the top plate 4 are lifted with both hands, the swing rod 24 rotates from the state shown in FIGS. The lock claw 10 ascends from the notch 8 of the case 9 while repeating contact with the teeth of the rack 6. When the top plate 4 reaches an appropriate height, when the hand is released from the top plate 4, the swinging rod 24 returns to the state shown in FIGS. 7 to 6, and the lock claw 10 is attached to the rack 6 by its own weight. While being supported by the teeth, the one side edge 12 abuts on the upper end edge 13 of the notch 8, and the top plate 4 is held at a desired height.

In the state of FIG. 6, when the operation piece 27 is pulled up while holding the left and right sides of the top plate 4, the swing rod 24 rotates as shown in FIG. 11 is pushed in the direction of compressing, and with the lateral movement of the linkage 17, the pin 20 is pushed in the direction of compressing the spring 11 like the pin 19, and the tooth profile portions 14 of the left and right lock claws 6 are simultaneously moved to the rack 6. Leave. In the state of FIG. 7, when the operation piece 27 is pulled up and the top plate 4 is lowered using its own weight and positioned at an appropriate height, when the hand is released from the operation piece 27, the swing rod 24 Is rotated in the opposite direction, and the tooth profile portions 14 of the lock claws 10 are fitted into the rack 6 by the movement of the pins 19, 17 and 20 in the opposite directions, and one side edge 12 of the lock claws 10 is The top plate 4 is stabilized by being locked to the upper edge 13 of the notch 8 in the case 9.

  In the above embodiment, when the top plate 4 is raised, it can be adjusted to a desired height simply by lifting the top plate 4, and when the top plate 4 is lowered, the top plate 4 is held. However, if the operation piece 27 is pulled up, it can be lowered to a desired position, so that the height adjustment is very easy, and a person with a physical disability or a person in a wheelchair can adjust the height safely. Can do.

  After adjusting the height of the top plate 4 by the user's physique or wheelchair, the wedge 29 provided on the lower surface of the top plate 4 is rotated to insert the tip into the gap 28 between the top plate 4 and the operation piece 27. When this happens, the swinging cage 24 is prevented from rotating and the top plate 4 is completely locked up and down, causing an unexpected accident, overturning an object placed on the top plate, or falling to the floor. There is no fear of doing it.

  Although the said embodiment is provided with the wedge 29 for locking raising / lowering of a top plate, this wedge 29 is used as needed. The table of the above embodiment is for one person, but the support A is formed in a box shape, and the lifting body B is attached to the front and rear curtains 2, or as shown in FIGS. The body A is formed in a horizontally long box shape, two left and right lifting bodies B are mounted on the front curtain 2, and two left and right lifting bodies B are mounted on the rear curtain 2, and each lifting body B is By the same means as the embodiment, it is also possible to configure a table for two or four persons whose height can be adjusted individually.

  The gears 16 that are pivotally mounted in the left and right cases 9 rotate as the top plate 2 moves up and down to assist the raising and lowering of the case 9, but can also be connected by a drive shaft or a reinforcing rod. It is. Further, the wedge 29 provided on the lower surface of the top plate 4 may be omitted.

A Support body B Lifting body 1 Support leg 2 Curtain plate 3 Slide plate 4 Top plate 5 Guide rail 6 Rack 7 Lock member 8 Notch 9 Case 10 Lock claw 11 Sprocket 12 One side edge of the lock claw 13 Upper end of the notch Edge 14 Tooth profile 15 Bearing hole 16 Tooth wheel 17 Link 18 Horizontal groove 19 Pin 20 Pin 21 Long hole 22 Through hole 23 Long hole 24 Oscillating rod 25 Fork joint hole 26 Bending arm 27 Space between operation piece 28 Wedge 30 bracket

Claims (2)

It consists of a support body in which left and right support legs are connected by a curtain plate , and a lift body in which a top plate is fixed to a sliding plate that moves up and down along the front surface of the curtain plate of the support body . A rack with teeth facing in the same direction is fixed in the pair of left and right guide rails, and a lock member that moves up and down in each guide rail is mounted on the back surface of the sliding plate. the lock claw of the destination has been L-shaped, dissipate fitted to the rack protrudes from notch having a toothed portion of the tip on one side of the case to the outside of the case, notches a side edge of the locking pawl of the case A pair of left and right pins protruding from the back surface of the linkage arranged on the back surface of the sliding plate so as to be movable in the left and right directions are attached to the upper end edge of the sliding plate. and respectively inserted in the through hole bored in the bent portion of the locking pawl, the continuous rod The front end of one of the pins through the, is projected from a long hole formed in the slide plate forward, the front end of the protruding pin, the front surface of the sliding plate, inwardly the lower end, the upper end is outwardly an intermediate portion in a tilted state is loosely fitted in the coupling hole provided at the lower end of the pivotally mounted oscillating lever to the sliding plate, the upper end of the swing rod is bent arm provided with an operating piece at the tip with the is set, between the rear end lower surface of the operation piece and top plate gap is formed, by pulling the operation lever, swing rod is rotated, the left and right locking claw against spring rack A table characterized by being configured to be detached from the table. 2. A table according to claim 1, wherein a wedge is fitted to the rear portion of the top plate so that the front end of the top plate is fitted into and removed from the gap between the lower surface of the top plate and the operating piece of the swinging rod.

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