JP4241966B2 - table - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a table, and in particular, a top plate is assembled to a support leg so as to be rotatable in a range between a use position in a substantially horizontal state and a folding position in a standing state, and a use position by a lock member. And a table locked in the folding position.
[0002]
[Prior art]
Such a table is disclosed, for example, in Japanese Utility Model Publication No. 1-16429.
In this case, with respect to the support legs (legs), the locking member (locking piece) for locking the top plate with the use position in a substantially horizontal state and the folding position in the standing state has an engagement groove. On the other hand, on the support leg side, an engagement pin that engages with an engagement groove of the lock member when the top plate is disposed at the use position, and the top when the top plate is disposed at the folding position. A pair of upper and lower engaging pins that engage with the engaging grooves of the lock member are provided.
Further, the lock member is connected to the operation handle via the connecting piece and the connecting rod. Furthermore, the lock member and the connecting piece are connected by a connecting pin and a vertically long hole.
Then, by rotating the operation handle against the spring force of the spring, the operation force is transmitted to the lock member via the connecting rod, the connecting piece, the connecting pin, and the vertically long hole, and the lock member is unlocked. Is rotated. Accordingly, the top plate at the use position is rotated toward the folding position, or the top plate at the folding position is rotated toward the use position.
[0003]
[Problems to be solved by the invention]
By the way, in the conventional table, the lock member (locking piece) is connected to the operation handle via the connecting piece and the connecting rod. Furthermore, the lock member and the connecting piece are connected by a connecting pin and a vertically long hole. For this reason, there is a problem that the structure is complicated, the number of parts and the number of assembling steps are increased, and the cost is increased.
[0004]
An object of the present invention is to provide a table that has a simple structure and can reduce costs by reducing the number of parts and the number of assembling steps in view of the conventional problems.
[0005]
[Means for Solving the Problems]
In order to achieve the object, the table according to the invention of claim 1 is capable of rotating with respect to the support leg in a range between a use position in a substantially horizontal state and a folding position in a standing state. The table is assembled and locked to the use position and the folding position by a lock member,
The lock member is rotatably assembled to the lower side of the top plate and is urged to rotate in one direction by an urging means,
The lock member is formed with a lock groove to be fitted and engaged with a fixed lock pin on the support leg side by the urging force of the urging means when the top plate is disposed at the use position.
Further, when the top plate is disposed at the folding position, the locking member is an engagement piece that is detachably engaged with a stopper piece fixed to the support leg side by the urging force of the urging means. Formed,
Moreover, an operation handle for rotating the lock member against the urging force of the urging means is fixed to the lock member integrally with the lock member or to the lock member .
Further, the operation handle is formed separately from the lock member, is attached to the lock member in a fixed state, and covers a whole outer surface of the lock member, and an operation handle portion. Is integrated .
[0006]
Therefore, the top plate disposed at the use position in a substantially horizontal state is locked at the use position by the engagement action between the lock groove of the lock member and the lock pin.
When the top plate locked in the use position is switched to the folding position, the operation handle is rotated against the urging force of the urging means. Then, the lock groove of the lock member comes out of the lock pin and is unlocked.
Here, the top plate is rotated to the folding position. Then, the engagement piece of the lock member comes into contact with and engages with the stopper piece, and the top plate is locked at the folding position by the engagement force.
An operation handle is attached to the lock member provided with the lock groove and the engagement piece integrally with the lock member or fixed to the lock member. For this reason, unlike the conventional case, it is possible to eliminate the necessity of connecting the operation handle to the lock member (locking piece) via the connecting piece and the connecting rod, and the structure can be simplified correspondingly. .
[0007]
Further, operation handle is formed in the locking member and another member, while being mounted in a fixed state in the lock member, and a cover portion for concealing the entire outer surface of the locking member and a handle portion of the manipulation It is prepared as one.
Therefore, the operation handle can provide a cover function for covering the lock member in addition to the original function as an operation handle for rotating the lock member, and the appearance design is also improved.
[0008]
According to a second aspect of the present invention , in the table according to the first aspect, the lock pin and the stopper piece are provided on a top plate receiving body fixed to the upper end portion of the support leg.
Therefore, the lock pin and the stopper piece can be easily disposed on the top plate receiving body, and in particular, the top plate receiving body can be pressed by a flat plate material and simultaneously the stopper piece can be bent. Reduction can be achieved.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to FIGS.
FIG. 1 is an exploded perspective view of the table, FIG. 2 is a side view, FIG. 3 is a front view, and FIG. 4 is a plan view. Casters 3 are mounted at a total of four front and rear portions.
A pair of left and right support legs 4 are erected in a state inclined at a predetermined angle near the center of the upper surface of the both leg bases 2.
The pair of left and right support legs 4 are connected by a horizontal frame member 5 that is installed at a predetermined height between the support legs 4.
[0010]
A top plate 10 is rotatably mounted on the upper ends of the support legs 4 via a pair of left and right top plate receivers 21 and a support shaft 6.
In this embodiment, a top plate receiving body 21 made of a substantially rectangular metal flat plate is fixed to the outer surfaces of the upper ends of both support legs 4 by fixing means such as welding and screws.
On the other hand, a pair of left and right supports 11 connected by connecting pipes 15 are attached to the left and right ends of the lower surface of the top plate 10. These supports 11 include an upper plate portion 12 along the front-rear direction of the lower surface of the top plate 10, and a wall plate portion 13 that is bent at a right angle toward the lower side inside the upper plate portion 12. It is formed in an inverted L shape.
The pair of left and right support shafts 6 are fitted and inserted into predetermined positions on the wall plate portion 13 of the support 11 from the both top plate receiving body 21 sides, and the top plate 10 is assembled. The top plate 10 is arranged and switched between a use position in a substantially horizontal state as shown in FIG. 2 and a folding position in a standing state as shown in FIG. It has become.
[0011]
Between the pair of support legs 4 and the top plate 10, a pair of left and right lock members 30 for locking the top plate 10 to the use position and the folding position are provided.
The pair of lock members 30 are rotatably assembled to the wall plate portion 13 of the support 11 of the top plate 10 around the rotation shaft 36 at a substantially central portion thereof.
Further, the rotation shafts 36 of the pair of lock members 30 are rotatably inserted into and supported by the cylindrical body 14 fixed to the wall plate portion 13.
The tip ends of both rotating shafts 36 protrude from the end portions of the cylindrical body 14 by a predetermined length. A cylindrical connecting rod 40 is inserted into both ends of the rotating shafts 36 and joined by fastening bolts 41 across the distal ends of both rotating shafts 36.
The pair of lock members 30 are urged to rotate in one direction by a spring 50 as an urging means. The spring 50 is a torque spring having a spring force accumulation portion 51 wound in a coil shape. One end 52 of the spring 50 is engaged with the support 11, and the other end latching portion 53 is a lock. It is latched at a predetermined position of the member 30 (see FIGS. 1 and 5).
[0012]
As shown in FIG. 5, a lock pin fixed to a pair of top plate receivers 21 at the upper end of the support leg 4 when the top plate 10 is arranged at the use position near the one end of the pair of lock members 30. A lock groove 31 having an opening at one end is formed.
Further, as shown in FIGS. 5 and 6, the pair of lock members 30 have stoppers formed in a cut-and-raised shape on the pair of top plate receptacles 21 when the top plate 10 is disposed at the folding position. Engagement pieces 33 that are detachably engaged with the pieces 23 are formed in the vicinity of the opening 32 of the lock groove 31.
Further, when the top plate 10 is disposed at the use position, the lock member 30 is rotationally biased by the biasing force of the spring 50 in the direction in which the lock groove 31 of the lock member 30 is engaged with the lock pin 22. Further, when the top plate 10 is disposed at the folding position, the lock member 30 is urged to rotate by the urging force of the spring 50 in the direction in which the engagement piece 33 of the lock member 30 engages with the stopper piece 23. It has become.
[0013]
Each of the pair of lock members 30 is provided with an operation handle 60 for rotating the lock member 30 against the urging force of the spring 50.
Unlike the lock member 30 made of a metal plate, these operation handles 60 are made of synthetic resin. The operation handle 60 is fitted from the outer surface of the lock member 30 and is fixedly attached to the lock member 30.
As shown in FIGS. 1 and 2, the operation handle 60 includes a cover cover portion 62 that covers and hides the entire outer surface of the lock member 30, and an operation handle that is integrally extended from one side of the cover cover portion 62. The handle portion 61 is provided.
[0014]
In the table according to this embodiment configured as described above, as shown in FIGS. 2 and 5, the top plate 10 disposed at the use position in a substantially horizontal state is formed by the pair of left and right supports 11. The lower surface of the upper plate portion 12 is received and supported by the upper surface of the top plate receiving body 21 at the upper end of the pair of left and right support legs 4.
When the top plate 10 is arranged at the use position, the lock grooves 31 of the pair of lock members 30 are respectively engaged with the lock pins 22 by the urging force of the spring 50 and are held in the engaged state. The plate 10 is locked in the use position.
[0015]
When the top plate 10 locked in the use position is switched to the folding position, the handle portion 61 of the operation handle 60 on the side that is easy to operate out of the pair of left and right operation handles 60 resists the biasing force of the spring 50. Is turned upward. Then, first, the operated lock member 30 on the operation handle 60 side is rotated about the rotation shaft 36. Together with the one lock member 30, the other lock member 30 is also rotated through the rotation shaft 36, the connecting rod 40, and the rotation shaft 36 of the other lock member 30.
As a result, the lock grooves 31 of the pair of left and right lock members 30 come out of the lock pins 22 and are unlocked.
Here, the top plate 10 is rotated about the support shaft 6 to the folding position while holding the handle portion 61 of the operation handle 60.
Then, as shown in FIGS. 6 and 7, the engagement pieces 33 of the pair of left and right lock members 30 are in contact with and engaged with the stopper pieces 23, respectively, and the top plate 10 is locked in the folding position by the engagement force. The
Further, when the top plate 10 locked at the folding position is switched to the use position, the top plate 10 is switched to the use position by operating in the reverse procedure.
In addition, as shown in FIG. 7, the table which the top plate 10 was locked in the folding position, and was folded, is accumulated and stored in the front-back direction.
[0016]
In this embodiment, the operation handle 60 is fixedly attached to the lock member 30 having the lock groove 31 and the engagement piece 33. For this reason, unlike the conventional case, it is possible to eliminate the necessity of connecting the operation handle to the lock member (locking piece) via the connecting piece and the connecting rod, simplify the structure, and reduce the number of parts and assembly man-hours. The cost can be reduced.
In this embodiment, the operation handle 60 includes a cover cover portion 62 that covers and hides the entire outer surface of the lock member 30, and an operation handle that is integrally extended from one side of the cover cover portion 62. Part 61. For this reason, in addition to the original function as the operation handle 60 for rotating the lock member 30, a cover function for covering the lock member 30 can be provided, and the appearance design is also improved.
[0017]
Further, in this embodiment, a flat top plate support in which the lock pin 22 and the stopper piece 23 corresponding to the lock groove 31 and the engagement piece 33 of the lock member 30 are fixed to the upper end of the support leg 4, respectively. It is disposed on the body 21.
For this reason, as compared with the case where the lock pin 22 and the stopper piece 23 are disposed on the upper end portion of the support leg 4 formed of the pipe material, the lock pin 22 and the stopper are formed on the flat plate-shaped top plate receiving body 21. The piece 23 can be easily disposed. In particular, the stopper plate 23 can be bent at the same time as the top plate receiving body 21 is pressed with a flat plate material, and the cost can be reduced.
[0018]
In this embodiment, an operation handle 60 is attached to each of the pair of left and right lock members 30, and the pair of left and right lock members 30 are operated by the operation handle 60 on the side that is easy to operate. Can be simultaneously unlocked via the connecting rod 40, so that operability and usability can be improved.
In the above-described embodiment, the operation handle 60 formed separately is attached to the pair of left and right lock members 30 by fitting, but the present invention is not limited to this, and the lock member 30 is not limited thereto. The operation handle may be extended integrally with the lock member 30 from a part thereof.
[0019]
【The invention's effect】
As described above, according to the present invention, since the operation handle is provided integrally with the lock member or fixed to the lock member, unlike the conventional case, the lock member (locking piece) is connected to the connecting piece. It is possible to eliminate the necessity of connecting the operation handle via the scissors, simplify the structure, reduce the number of parts and the number of assembly steps, and reduce costs.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing a configuration of a table according to an embodiment of the present invention.
FIG. 2 is a side view showing the table.
FIG. 3 is a front view showing the table.
FIG. 4 is a plan view showing a state where the top plate of the table is also removed.
FIG. 5 is a front view showing a state in which the top plate is locked in the use position by the lock member.
FIG. 6 is a front view showing a state in which the top plate is locked in the folding position by the lock member.
FIG. 7 is a side view showing a state in which the same folded table is stored by being stacked in the front-rear direction.
[Explanation of symbols]
4 Support leg 6 Support shaft 10 Top plate 11 Support body 21 Top plate receiving body 22 Lock pin 23 Stopper piece 30 Lock member 31 Lock groove 33 Engagement piece 50 Spring (biasing means)
60 Operation handle 61 Handle part 62 Cover cover part

Claims (2)

The top plate is assembled to the support leg so as to be rotatable in a range between a use position in a substantially horizontal state and a folding position in an upright state, and each of the use position and the folding position by a lock member. A table to be locked,
The lock member is rotatably assembled to the lower side of the top plate and is urged to rotate in one direction by an urging means,
The lock member is formed with a lock groove to be fitted and engaged with a fixed lock pin on the support leg side by the urging force of the urging means when the top plate is disposed at the use position.
Furthermore, when the top plate is disposed at the folding position, the locking member is an engagement piece that is detachably engaged with a stopper piece fixed to the support leg side by the urging force of the urging means. Formed,
Moreover, an operation handle for rotating the lock member against the urging force of the urging means is fixed to the lock member integrally with the lock member or to the lock member .
Further, the operation handle is formed separately from the lock member, and is attached to the lock member in a fixed state, and covers a whole outer surface of the lock member, and an operation handle portion. A table that has a unit . The table according to claim 1, wherein the lock pin and the stopper piece are provided on a top plate receiving body fixed to an upper end portion of the support leg.

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