JP4335284B2 - High and low adjustable table - Google Patents

Description

Detailed Description of the Invention

〔Technical field〕
The present invention relates to an adjustable table, and more particularly, to a variety of human bodies such that a leg that can be expanded and contracted can be locked and unlocked by a simple pivoting operation of an operating lever. The present invention relates to an improved table capable of adjusting the height of the upper surface of the table which can be easily adjusted according to the body shape.

[Background Technology]
Schools, modern offices, and industrial environments provide work areas with various types of functional furniture components. These furniture components include work surfaces and table top surfaces that are used for a variety of purposes ranging from drafting, writing and word processing functions. Therefore, these surfaces must be able to support a variety of equipment such as typewriters and computer terminals. Also, these surfaces must be able to be adjusted vertically so that various jobs and various users can easily take advantage of them. The same applies to the platform provided for the table support, but the height of the platform must be adjustable so that various users can use it conveniently.

  In particular, such a table is more serious for elementary school, middle school, high school and university students. That is, even in the case of classmates taking classes in the same classroom, there are considerable differences in physical conditions among individuals. However, such school equipment tables are manufactured in a standardized size according to the stage taking into account the average physical conditions of many students. For this reason, there were considerable inconveniences for students using school equipment tables that did not fit the body size.

  One type of the above-described adjustable table is US Patent No. 5,289,782, published March 1, 1994 by John J. Rizzi et al. Have been proposed. This refers to FIG. 5 which shows a height adjustable table showing an example of the prior art. As shown in FIG. 5, the conventional table 10 has a table upper surface 12, a first leg portion 14a connected to the table upper surface 12, and a first leg portion 14a fitted to the first leg portion 14a. A pair of telescoping legs 14 provided with a second leg 14b provided to be movable up and down and a weight means (not shown) disposed between the pair of legs. ) Including a balance mechanism 16 and a pair of support bases 18 provided in the lower stage of the second leg portion 14b of the leg 14. However, such a table is a device for adjusting the height of the upper surface of the table, and a counterbalance mechanism equipped with a weight means such as a rack, a pinion, and a chain had to be used. However, due to the complexity of the equipment, there have been problems such as reduced productivity and incompatibility with mass production. In addition, since the step 19 provided on the table support base cannot be adjusted in height, it is inconvenient for users of various body shapes.

[Disclosure of the Invention]
[Problems to be Solved by the Invention]
The present invention is intended to solve the above-described problems, and the object of the present invention is to use a leg that can be extended or retracted and released by a simple operation of an operating lever. It is an object of the present invention to provide a height adjustable table that can easily adjust the height of the upper surface of the table according to the body shape of the person.

[Means for solving the problems]
In order to achieve the above object, the present invention provides a table upper surface and a first leg connected to the table upper surface, fitted to the first leg, or fitted with the first leg to a longitudinal direction. The second leg for supporting the table upper surface to be kept horizontal, and the other projecting from one end of the first leg and the second leg. And a plurality of fixing grooves are continuously provided along the longitudinal direction on the outer peripheral surface of each of the fixing bars, and the first fixing rod is positioned at a position corresponding to the fixing groove. A leg member provided with a first guide hole in one of the one leg and the second leg, and one of the first leg and the second leg can be passed and fixed. A working chamber is provided in which the installation hole is provided vertically and at least one surface is opened adjacent to the installation hole. A latch body provided with a second guide hole in a partition between the installation hole and the working chamber, a fixing part partially fitted in the second guide hole of the latch body so as to be slidable, and the above In order to adjust the height of the upper surface of the table, including a latching member which is rotatably installed on both side walls of the working chamber of the latching tool body and comprises an operating lever for pushing or stopping the fixing tool. If the operating lever is rotated in one side direction, the fixture can be moved backward from the fixing groove of the fixing rod, and the length of the leg member can be made variable. The fixing member is fitted in the fixing groove of the fixing rod and fixed so as not to move, so that the length of the leg member can be unchanged. And

  Preferably, a guide projection having a guide chamber protrudes toward the working chamber so that the fixing member can be slidably fitted around the second guide hole of the partition.

  Preferably, a fixing plunge is provided at one end of the fixing tool to prevent the fixing tool from moving forward further from the guide chamber of the guide convex portion toward the installation hole.

  Preferably, an installation groove is provided at one end of the fixture, and a compression spring is provided in the installation groove for providing an elastic force, and is fitted to an inlet of the installation groove at a position adjacent to the compression spring. Thus, a presser that presses the compression spring and is pressed by the operating lever is provided.

  Preferably, the presser includes a presser bar fitted into the installation groove and a presser plate integrally formed at one end of the presser bar.

  Preferably, a guide shaft of the fixture is further provided between the installation hole of the hook body and the presser bar of the presser so as to penetrate the installation groove of the fixture and guide the progress of the fixture. included.

〔The invention's effect〕
As described above, in the height adjustable table according to the preferred embodiment of the present invention, the operating lever and the fixture that can be moved forward or backward by the rotation of the operating lever are the first leg portion and the second leg portion. When the height of the table top surface is adjusted, the leg that can be extended and retracted can be locked and unlocked by simply rotating the operating lever. By doing so, the effect that the length of a leg member can be adjusted easily is acquired.

[Best Mode for Carrying Out the Invention]
Hereinafter, a height adjustable table according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 illustrates an entire height adjustable table according to a preferred embodiment of the present invention. FIG. 2 shows a state in which the leg member and the latch member are disassembled in FIG.

  Referring to FIG. 1, a height adjustable table 100 according to a preferred embodiment of the present invention includes a table upper surface 102, a leg member whose length is variable so that it can be pulled and retracted, and the table upper surface 102 is maintained in a horizontal state. It consists of a latching member that controls tension and contraction of the length of the leg member.

  The leg member can be fitted to the first leg 112, the first leg 112 connected to the table upper surface 102, or can be contracted and extended in the longitudinal direction by fitting the first leg 112. A plurality of fixing rods 116 that protrude from one end of the second leg 114 and the first leg 112 and the second leg 114 to support the horizontal leg 114 and are positioned inside the other one. A plurality of fixing grooves 116a are continuously provided along the longitudinal direction on the outer peripheral surface of each fixing rod 116, and the first leg 112 and the second leg 114 are located at positions corresponding to the fixing grooves 116a. A first guide hole 112a is provided in one of them. For reference, FIGS. 1 and 2 illustrate a structure in which the second leg 114 is fitted to the first leg 112. Desirably, the first leg 112 and the second leg 114 are in the form of hollow tubes, but the present invention is not limited thereto. Desirably, the fixing rod 116 is in the form of a non-hollow rod, but is not limited thereto. The fixing groove 116 a is preferably formed along the outer peripheral surface of the fixing rod 116.

  An installation hole 122a is provided vertically so that the latch member 120 can be fixed by passing one of the first leg 112 and the second leg 114, and at least one surface is provided adjacent to the installation hole 122a. Is provided, and the second guide hole 124a of the hook body 122 is provided with the second guide hole 124a provided in the partition 124 between the installation hole 122a and the working chamber 122b. And a fixing tool 126 that is partially slidably fitted in the sliding member, and an operation for pushing or stopping the fixing tool 126 that is rotatably installed on both side walls of the working chamber 122b of the hook body 122 by a rotating shaft 122c. A latching member comprising a lever 128 is included. It is desirable that the inner diameter of the installation hole 122a corresponds to the outer diameter of the first leg portion 112 or the second leg portion 114 or be formed larger. The hook body 122 is preferably fixed to the first leg 112 and the second leg 114 by a fastening means such as a screw. It is desirable that the fixing tool 126 has a streamlined tip. This is so that the fixture 126 can be easily fitted into the first guide hole 112a of the first leg 112 and the second guide hole 124a of the hook body 122.

  Around the second guide hole 124a of the partition 124, a guide protrusion 124b having a guide chamber 124c protrudes toward the working chamber 122b so that the fixture 126 can be slidably fitted.

  A fixing plunge 126a is provided at one end of the fixing tool 126 to prevent the fixing tool 126 from moving forward further from the guide chamber 124c of the guide projection 124b toward the installation hole 122a.

  An installation groove 126b is provided at one end of the fixture 126, and a compression spring 130 is provided in the installation groove 126b to provide an elastic force. The compression spring 130 is fitted at an entrance of the installation groove 126b at an adjacent position. A presser 132 that presses the compression spring 130 and is pressed by the operating lever is provided. The presser 132 includes a presser bar 132a fitted in the installation groove 126b, and a presser plate 132b formed integrally with one end of the presser bar 132a. At least one pressing convex portion 128 a is formed on the rear wall surface of the operating lever 128. The presser convex portion 128 a is a portion that contacts the presser plate 132 b of the presser 132. For reference, the elastic force of the compression spring 130 is designed to withstand the load on the table upper surface 102.

  Between the installation hole 122a of the latch body 122 and the presser bar 132a of the presser 132, a fixture guide shaft 134 that penetrates the installation groove 126b of the fixture 126 and guides the progress of the fixture 126 is provided. Further can be included. One end of the fixture guide shaft 134 is pivotally coupled to one side surface of the operating lever 128 so as to be rotatable. For this reason, a rotating wheel 134 a can be integrally formed at one end of the fixture guide shaft 134. The rotating wheel 134a is rotatably coupled to the rotating shaft 122c. For this reason, the rotating wheel 134a is preferably formed in a ring shape, but is not limited thereto.

  At least one or more interval maintaining projections 124a are formed on the inner wall of the working chamber 122b. The interval maintaining convex portion 124a is for minimizing a portion where the operating lever 128 contacts the inner wall of the operating chamber 122b and assisting the rotating operation of the operating lever 128.

  In the height adjustable table according to the present invention, the fixture 126 can be moved backward from the fixing groove 116 a of the fixing rod 116 by rotating the operating lever 128 in one direction in order to adjust the height of the table upper surface 102. Thus, the length of the leg member 110 can be made variable, and if the operating lever 128 is rotated in the other direction, the fixture 126 is fitted in the fixing groove 116a of the fixing rod 116 so as not to move. The length of the leg member can be fixed by being fixed.

  The operation of the height adjustable table configured as described above will be described in detail with reference to FIGS. 3 to 8 attached hereto.

  Referring to FIGS. 3 and 6, the upper portion of the second leg portion 114 of the leg member protrudes toward the upper portion of the fixing rod 116, and the lower portion of the second leg portion 114 extends to the upper portion of the second leg portion 114. Part is fitted. Further, the hook body 122 is fitted on the outer peripheral surface of the first leg 112 and is fixed by a fastening means such as a screw.

  In particular, the operating lever 128 is positioned vertically in the working chamber 122b of the hook body 122. At this time, the upper rear stage portion of the operating lever 128 presses the presser plate 132 b of the presser 132. In this case, the presser bar 132a of the presser 132 presses and compresses the compression spring 130 and presses the presser 132. In this case, the streamlined tip of the presser 132 is fitted into the fixing groove 116 a of the fixing rod 116 and is in close contact with the fixing rod 116. By doing in this way, the 1st leg part 112 and the 2nd leg part 114 of the leg member 110 will be in the state fixed without moving in the present state.

  Referring to FIGS. 4 and 7, in order to adjust the height of the table upper surface 102, the operator holds the lower stage of the operation lever 128 and rotates it counterclockwise. At this time, the presser protrusion 128 a of the operating lever 128 moves backward from the presser 132. As a result, the presser 132 moves backward in the direction of the presser protrusion 128 a by the elastic force of the compression spring 130. In this state, since the elastic force of the compression spring 130 overcomes the load on the table upper surface 102, it cannot naturally descend.

  In this state, if the operator raises or lowers the table 100 so as to fit the body shape of the user, the fixing tool 126 is detached from the fixing groove 116a of the fixing rod 116 that has been located. Are shown in detail in FIGS. If the operator forcibly lifts the table upper surface 102, the fixing tool 126 is moved backward by overcoming the elastic force of the compression spring 130, and comes out of the fixing groove 116 a of the fixing bar 116 and is fixed. It is located on the outer peripheral surface.

  Thereafter, the operator raises the table upper surface 102 to a necessary position, and the fixing tool 126 described above is fitted and fixed in the fixing groove 116a at the position. Next, the operator holds the operating lever 128 and then rotates it clockwise. Then, the pressing convex portion 128a of the operating lever 128 further presses the pressing plate 132b of the pressing tool 132 so that the compression spring 130 is compressed. At the same time, the fixing tool 126 is fixed by the presser 132 so as not to move. In this state, even if an external force is applied to the table upper surface 102, it cannot be lowered or raised. Here, the fixture 126 can be smoothly moved straight along the fixture guide shaft 134 installed on the hook body 122. At the same time, the interval maintaining projections 124a provided on the inner wall of the working chamber 122b of the latching body 122 allow the both sides of the actuating lever 128 to make a line contact that is not surface contact, thereby smoothly assisting the turning operation.

  In the height adjustable table according to the present invention, in order to adjust the height of the upper surface of the table, if the operating lever is rotated in one side direction, the fixture can be moved backward from the fixing groove of the fixing rod, and the length of the leg member is increased. If the actuating lever is rotated in the other direction, the fixture is fixed in the fixing groove of the fixing rod so as not to move, and the length of the leg member is not changed. be able to. With such a structure, it can be applied to a table used in a home, company, school, or the like.

  Although the present invention has been specifically described with reference to the above-described embodiments, the present invention is not limited to this, and those skilled in the art can make modifications and improvements within the scope of ordinary knowledge. It is.

1 is an overall perspective view of a height adjustable table according to a preferred embodiment of the present invention. In FIG. 1, it is a disassembled perspective view of a leg member and a latching member. It is the elements on larger scale which looked at the table of Drawing 1 from the front, and is a figure in the state where the 1st leg part of a leg was locked (locking). It is the elements on larger scale which looked at the table of Drawing 1 from the front, and is a figure in the state where the 1st leg of a leg was unlocked (unlocking). It is the elements on larger scale which looked at the table of FIG. 1 from the front, Comprising: It is a figure of the state which a leg can expand-contract and extend. It is the longitudinal cross-sectional view which looked down at the table of FIG. 1, and is a figure in the state where the 1st leg part of the leg was locked. It is the longitudinal cross-sectional view which looked down at the table of Drawing 1, and is a figure in the state where the 1st leg part of the leg was unlocked. It is the longitudinal cross-sectional view which looked down at the table of FIG. 1, and is a figure which a leg can extend and contract. It is a perspective view of the height adjustable table which shows an example of a prior art.

Claims (8)

A table top surface;
The first leg connected to the upper surface of the table can be fitted to the first leg or can be contracted and extended in the longitudinal direction by fitting the first leg, and the table upper surface is kept horizontal. And a plurality of fixing rods protruding from one end of the first leg and the second leg and positioned inside the other one, and A plurality of fixing grooves are continuously provided in the longitudinal direction on the outer peripheral surface of the fixing rod, and a first one of the first leg and the second leg is positioned at a position corresponding to the fixing groove. A leg member provided with a guide hole;
An installation hole is provided vertically so that one of the first leg and the second leg can be passed and fixed, and an operation chamber having at least one surface opened at a position adjacent to the installation hole is provided. And a fastener body in which a second guide hole is provided in a partition between the installation hole and the working chamber, a fixture partly fitted in the second guide hole of the latch body so as to be slidable, and A latch member which is rotatably installed on both side walls of the working chamber of the latch body and includes an actuating lever for pushing or stopping the fixture;
If the operating lever is rotated in one direction to adjust the height of the upper surface of the table, the fixture can be moved backward from the fixing groove of the fixing rod, and the length of the leg member is variable. If the operating lever is rotated in the other direction, the fixture is fixed in the fixing groove of the fixing rod so as not to move, and the length of the leg member is increased. High and low adjustable table, characterized by being able to be immutable.   The height adjustable table according to claim 1, wherein at least one interval maintaining convex portion is formed on an inner wall of the working chamber.   The height adjustable table according to claim 1, wherein at least one presser protrusion is provided on one side of the operating lever.   2. The height adjustment according to claim 1, wherein a guide convex portion having a guide chamber protrudes toward the working chamber so that the fixing member can be slidably fitted around the second guide hole of the partition. Possible table.   The fixed plunge is provided at one end of the fixture to prevent the fixture from further advancing in the direction of the installation hole from the guide chamber of the guide protrusion. High and low adjustable table.   An installation groove is provided at one end of the fixing tool, and a compression spring for providing elastic force is provided in the installation groove. The compression spring is fitted at an entrance of the installation groove at a position adjacent to the compression spring. The height-adjustable table according to claim 4, wherein a presser is provided that presses a spring and is pressed by the operating lever.   The height adjustment table according to claim 6, wherein the presser includes a presser bar fitted into the installation groove and a presser plate integrally formed at one end of the presser bar.   Between the installation hole of the latching tool body and the presser bar of the presser, a fixture guide shaft is further included for guiding the progress of the fixture through the installation groove of the fixture. The height adjustable table according to claim 6.

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