JP2024027167A - Placement table frame - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a frame of a placement table.

SOLUTION: A placement table frame includes: X-shaped two leg members 8, 8 a crossing angle of which can be changed; two upper bars 2, 2 connecting upper ends of the two leg members 8, 8; and two fixation bars 5, 5 for fixing a seat member 4 provide in a tensioned state on the two upper bars 2, 2 to the two leg members 8, 8. Each of the fixation bars 5 includes a latch part 7 that can be latched to the two leg members 8, 8 in a lower side of the two upper bars 2, 2.

SELECTED DRAWING: Figure 1

COPYRIGHT: (C)2024,JPO&INPIT

Description

The present invention relates to a frame for a mounting table on which articles and the like can be placed.

Patent Document 1 describes that in a foldable mounting table that can be used as a table, chair, footrest, etc., the height of the mounting surface or seat surface on which an article or the like is placed can be changed.

Japanese Patent Application Publication No. 2004-243025

The present invention aims to provide a frame for a mounting table as described above.

In order to solve the above problems, the mounting table frame according to the present invention includes two leg members in an X-shape whose intersection angle can be changed, two upper bars that connect the upper ends of the two leg members, two fixing bars for fixing the sheet member stretched over the two upper bars to the two leg members, each fixing bar being attached to the lower side of the two upper bars. (Claim 1) further comprising a hook portion that can be hooked to the two leg members.

According to the present invention, the seat member is fixed to the two leg members by the two fixing bars. Since each fixing bar is attached to and detached from the leg member by the hook portion, each fixing bar can be easily attached to and detached from the leg member.

As an embodiment, the lower portions of the two leg members may be connected to each other by two lower bars (Claim 2). This improves strength.

As one embodiment, a brace may be installed between each of the lower bars and each of the leg members (Claim 3). This further improves the strength.

FIG. 1 is a perspective view of a mounting table including a mounting table frame according to an embodiment of the present invention. FIG. 2 is a front view of the mounting table in FIG. 1; FIG. 3 is a perspective view of a sheet member constituting the mounting table of FIGS. 1 and 2. FIG. FIG. 3 is a side view of a fixing bar that constitutes the mounting table of FIGS. 1 and 2. FIG. FIG. 5 is an explanatory diagram of a process of fixing the sheet member of FIG. 3 to the opening/closing frame using the fixing bar of FIG. 4; FIG. 5 is an explanatory diagram of a state in which the sheet member of FIG. 3 is fixed to the opening/closing frame with the fixing bar of FIG. 4; FIG. 7 is a plan view of another specific example of the sheet member. FIG. 7 is a plan view of another specific example of the sheet member. FIG. 7 is a plan view of another specific example of the sheet member. FIG. 7 is a plan view of another specific example of the sheet member. FIG. 7 is a plan view of another specific example of the sheet member.

Embodiments of the present invention will be described below with reference to the accompanying drawings.

The mounting table 1 shown in FIGS. 1 and 2 includes a mounting table frame F according to an embodiment of the present invention, and a sheet member 4 stretched over the mounting table frame F. The mounting frame F includes an opening/closing frame 3 having two parallel upper bars 2, 2, and two fixing bars 5, 5 for fixing the sheet member 4 to the opening/closing frame 3. In the illustrated example, the sheet member 4 includes at least three (four in the example of FIGS. 1 and 2) fixed bar receiving portions 6, 6, 6, . . . that can receive two fixed bars 5, 5. , each fixing bar 5 is removable from the opening/closing frame 3.

In the mounting table 1 of FIGS. 1 and 2, two fixed bars 5, 5 are inserted into two fixed bar receiving parts 6, 6 selected from at least three fixed bar receiving parts 6, 6, 6... be done. These two fixing bars 5, 5 are then attached to the opening/closing frame 3. Thereby, the sheet member 4 is fixed to the opening/closing frame 3, and the opening degree of the opening/closing frame 3 is fixed by the tension of the sheet member 4. Therefore, articles can be placed on the upper surface (placing surface) 4a of the sheet member 4 in a tensioned state, and a person can sit or place their feet thereon.

According to the mounting table 1 shown in FIGS. 1 and 2, the two fixing bars 5, 5 are inserted into any two of the at least three fixing bar receiving parts 6, 6, 6... of the sheet member 4. The height of the mounting surface 4a can be changed depending on the height of the mounting surface 4a. That is, among at least three fixed bar receiving parts 6, 6, 6..., the two fixed bars 5, 5 are inserted into two fixed bar receiving parts 6, 6 having a large distance from each other. When the book fixing bars 5, 5 are attached to the opening/closing frame 3, the mounting surface 4a becomes lower. On the other hand, among at least three fixed bar receiving parts 6, 6, 6..., the two fixed bars 5, 5 are inserted into two fixed bar receiving parts 6, 6 with a small distance from each other. When the two fixing bars 5, 5 are attached to the opening/closing frame 3, the mounting surface 4a becomes higher.

Each component of the mounting table shown in FIGS. 1 and 2 will be explained in detail.

As shown in FIG. 2, the opening/closing frame 3 constituting the mounting table frame F has a mutual distance W between two parallel upper bars 2, 2 and a height H (floor surface when the mounting table 1 is placed on the floor). This is a frame that can change the height (from 1 to 2) at the same time. That is, as shown in FIG. 1, the opening/closing frame 3 includes two X-shaped leg members 8, 8 whose intersection angle can be changed, and these two leg members 8, 8 connect to the two upper bars 2, 2. are connected to each other by. In order to improve the strength of the opening/closing frame 3, the two leg members 8, 8 may be connected to each other by two lower bars 9, 9, as shown in phantom lines in FIG. Furthermore, as similarly shown by imaginary lines in FIG. 1, a reinforcing plate 9a in the form of a brace may be installed between each lower bar 9 and each leg member 8.

Each leg member 8 is an X-shaped member in which two rods 10, 10 are connected by a pivot shaft 11 so that the crossing angle can be changed. Therefore, if the mutual distance between the two upper bars 2, 2 is narrowed, the height H of the two upper bars 2, 2 will increase, and conversely, the mutual distance W between the two upper bars 2, 2 will be increased. For example, the height H of the two upper bars 2, 2 is reduced. Each bar 10 constituting each leg member 8 may be a square bar as shown in FIG. 1, or may be a round bar. The material of the bar 10 can be appropriately selected from wood, metal, plastic, etc. depending on the strength required for the mounting table.

The two upper bars 2, 2 respectively connect the corresponding upper ends of the two leg members 8, 8 to each other. The connection between each upper bar 2 and each leg member 8 may be a removable connection such as fitting a umbilicus (tenon) to an umbilical hole or screwing a screw shaft to a nut, or adhesive or welding. It may also be fixed. The detachable connection is convenient when the mounting table 1 is assembled. The cross-sectional shape of each upper bar 2 may be a square bar as shown in FIG. 1, or a round bar. Similar to the leg members, the material of the upper bar 2 can be appropriately selected from wood, metal, plastic, etc. depending on the strength required for the mounting table.

As is clear from FIG. 1, the opening/closing frame 3 is constructed by connecting two downward-opening U-shaped leg members including the upper bar 2 with two pivot shafts 11, 11 so that the crossing angle can be changed. You can also see it.

The sheet member 4 is a rectangular band-shaped member as shown in FIG. 3, and is installed over the two upper bars 2, 2 as shown in FIGS. 1 and 2. The short side dimension of the sheet member 4 is such that it can be installed on the two upper bars 2, 2. In the seat member 4, the upper surface between the two upper bars 2, 2 serves as a mounting surface 4a or a seat surface. The object placed on the placement surface 4a is supported by the tension of the sheet member 4. Therefore, the sheet member 4 needs to have enough tensile strength to withstand the weight of the placed object. Furthermore, as will be described later, after the sheet member 4 is hung around the upper bar 2, it is fixed to the opening/closing frame 3 by the fixing bar 5. For this reason, the sheet member 4 also needs to have flexibility so that it can be hung around the upper bar 2.

Preferred examples of the sheet member 4 having the tensile strength and flexibility described above include a plastic sheet woven from plastic fibers having high tensile strength, canvas, and the like. In one embodiment of the present invention, as an example, super strong thread 66 nylon (a material originally developed for bulletproof vests, etc., and has about 3 to 4 times the tear strength compared to normal nylon) is used with a high density of 2520 denier. A sheet of hard nylon (Varistor Nylon 2520d) is made by weaving, and the sheet member 4 is made by stacking and sewing two sheets of this hard nylon.

As shown in FIG. 3, the sheet member 4 has at least three (four in the example of FIG. 3) fixed bar receiving parts 6, 6, 6, . . . that can receive two fixed bars 2, 2. Be prepared. Two fixed bars 5, 5 are inserted into two fixed bar receiving parts 6, 6 among these fixed bar receiving parts 6, 6, 6..., and these two fixed bars 5, 5 are opened and closed. By attaching it to the frame 3, the sheet member 4 is fixed to the opening/closing frame 3. Depending on which two of the at least three fixed bar receiving parts 6, 6, 6... the fixed bars 5, 5 are inserted into, the height of the mounting surface 4a of the sheet member 4 can be set in at least two levels. Can be adjusted. In addition, in FIG. 3, from the viewpoint of clarity of illustration, each fixed bar receiving part 6 is shown in an open state. The portion 6 has a planar shape.

The two fixing bars 5, 5 are members for fixing the sheet member 4 to the opening/closing frame 3. As shown in FIG. 1, one fixed bar 5a has a length that matches the spacing between the inner bars 10a, 10a that constitute the opening/closing frame 3, and the other fixed bar 5b has a length that matches the distance between the inner bars 10a, 10a that constitute the opening/closing frame 3. It has a length that matches the spacing between the outer bars 10b, 10b constituting No. 3.

As shown in FIG. 4, hooks 7, 7 that can be hooked to the opening/closing frame 3 are provided at both ends of each fixed bar 5 as means for attaching and detaching the fixing bar 5 to the opening/closing frame 3. As shown in FIG. 1, each hooking part 7a of one fixed bar 5a can be hooked to two inner bars 10a, 10a constituting the opening/closing frame 3, and each of the hooking parts 7a of the other fixed bar 5b The hooking portion 7b can be hooked on two outer bars 10b, 10b constituting the opening/closing frame 3. Each fixed bar 5 has a hooking portion 7 that can be hooked to the opening/closing frame 3 as a means for attaching/detaching it to/from the opening/closing frame 3, so that each fixing bar 5 can be easily attached/detached to/from the opening/closing frame 3. Therefore, the height of the mounting surface 4a of the sheet member 4 can be easily adjusted.

As shown in FIG. 4, each locking portion 7 of each fixed bar 5 is formed of a locking piece 12 formed by bending an elongated plate into an L-shape. Each hooking piece 12 is composed of a base piece 13 and a tip piece 14 that are positioned at right angles to each other. The base piece 13 is fixed to each end of each fixing bar 5 with fasteners such as screws 15. A hook-shaped hooking portion 7 is formed by the portion of the base piece 13 that extends from the end surface 16 of the fixing bar 5, the end surface 16 of the fixing bar 5, and the tip piece 14. 7 is hooked to each bar 10 of each leg member 8 constituting the opening/closing frame 3. As shown in FIG. 1, when the fixing bar 5 is inserted into the fixing bar receiving part 6 of the sheet member 4, the hook parts 7, 7 at both ends of the fixing bar 5 are exposed to the outside of the fixing bar receiving part 6. .

A method of fixing the sheet member 4 to the opening/closing frame 3 will be described with reference to FIG. 5. 5(a) and 5(b) show the relationship between the sheet member 4, the upper bar 2, and the fixing bar 5 in the BB cross section of FIG. Further, FIG. 5(c) shows a state where the arrow A portion in FIG. 1 is viewed from above.

First, as shown in FIG. 5(a), the end of the sheet member 4 is hung around the upper bar 2 from above, and then folded back in the opposite direction below the upper bar 2. Next, as shown in FIG. 5(b), the fixing bar 5 is inserted into one of the fixing bar receiving portions 6 of the sheet member 4 above the bar 10 that constitutes the leg member 8. Then, as shown in FIG. 5(c), the latching portion 7 of the fixed bar 5 is latched from above to the bar 10 constituting the leg member 8 on the lower side of the upper bar 2 (the latching portion 7 is (See also Figure 1 for the condition). When the opening/closing frame 3 is opened by separating the two upper bars 2 and 2 from each other until the seat member 4 is tensioned, the fixed bar 5 moves diagonally upward along the bar 10 of the leg member 8. The fixing bar 5 and the seat member 4 are fixed to the opening/closing frame 3 by the stopper action of the upper bar 2.

FIG. 6 is an explanatory diagram of a state in which the sheet member 4 of FIG. 3 is fixed to the opening/closing frame 3 by the fixing bar 5 of FIG. 4. FIGS. 6(a) and 6(b) show that the sheet member 4 is fixed to the inner fixed bar receiving part 6a of the two fixed bar receiving parts 6, 6 formed at the end of the sheet member 4 (the inner side as seen in FIG. 3). This is a state in which the sheet member 4 is fixed by inserting the bar 5, and FIG. 6(a) shows a section viewed from arrow A in FIG. 1, and FIG. 6(b) shows a sectional section taken along line BB in FIG. Further, FIGS. 6(c) and 6(d) show a fixed bar receiving part 6b on the outside (inside as seen in FIG. 3) of the two fixed bar receiving parts 6, 6 formed at the end of the sheet member 4. The fixing bar 5 is inserted through the sheet member 4 to fix the sheet member 4, and FIG. 6(c) shows a section viewed from arrow A in FIG. 2, and FIG. 6(d) shows a sectional section taken along line BB in FIG.

As shown in FIGS. 6(a) and 6(b), the fixed bar 5 is inserted into the inner fixed bar receiving part 6a of the two fixed bar receiving parts 6, 6 formed at the end of the sheet member 4. When the seat member 4 is fixed, the inclination angle of the bar 10 of the leg member 8 becomes a steep angle θ1 (as a result, the opening degree of the opening/closing frame 3 becomes smaller), and the mounting surface 4a of the seat member 4 becomes higher. . On the other hand, as shown in FIGS. 6(c) and 6(d), the fixing bar 5 is inserted into the outer fixing bar receiving part 6b of the two fixing bar receiving parts 6, 6 formed at the end of the sheet member 4. When the sheet member 4 is fixed through the insertion, the inclination angle of the bar 10 of the leg member 8 becomes a gentle angle θ2 (as a result, the opening degree of the opening/closing frame 3 increases), and the mounting surface 4a of the sheet member 4 becomes lower.

According to the mounting table 1 of this embodiment, the two fixing bars 5, 5 are inserted into any two of the at least three fixing bar receiving parts 6, 6, 6... of the sheet member 4. The height of the mounting surface 4a can be changed depending on the height of the mounting surface 4a. That is, as shown in FIG. 3, among at least three fixed bar receiving parts 6, 6, 6..., the two fixed bars 5, 5 is inserted and the hooking portions 7, 7 of the two fixing bars 5, 5 are hooked to each leg member 8, the mounting surface 4a becomes higher (see FIGS. 6(a) and (b)). ). On the contrary, two fixed bars 5, 5 are inserted into two fixed bar receiving parts 6b, 6b with a large distance from each other among at least three fixed bar receiving parts 6, 6, 6... When the respective latching portions 7, 7 of the two fixed bars 5, 5 are latched to each leg member 8, the mounting surface 4a becomes lower (see FIGS. 6(c) and 6(d)).

Various ways of disposing the fixed bar receiving portion 6 in the sheet member 4 are conceivable. In the example of FIG. 3, two fixed bar receiving portions 6a, 6b are formed adjacent to each other at one end of the sheet member 4, and similarly, two fixed bar receiving portions 6a, 6b are formed at the other end of the sheet member 4. 6b are formed adjacent to each other, forming a total of four fixed bar receiving portions.

In this case, the fixing bar 5 is inserted into either one of the two fixing bar receiving parts 6a, 6b at one end of the sheet member 4, and the fixing bar 5 is inserted into one of the two fixing bar receiving parts 6a, 6b at the other end of the sheet member 4. The fixing bar 5 is inserted into one side. As a result, among the four fixed bar receiving parts, two fixed bar receiving parts 6a, 6a (inner two fixed bar receiving parts 6a, 6a in FIG. 3) have a minimum distance D1 from each other. When the fixing bars 5, 5 are inserted and each hooking portion 7 is hooked to the opening/closing frame 3, the mounting surface 4a of the sheet member 4 is at the highest height position.

Furthermore, among the four fixed bar receiving sections, two fixed bar receiving sections 6b. If the two fixing bars 5, 5 are inserted through the two fixing bars 6b (the two outer fixing bar receiving parts 6b, 6b in FIG. The placement surface 4a is the lowest height position. Of the four fixed bar receiving parts, two fixed bar receiving parts 6a and 6b whose mutual distance is an intermediate distance D2 between the minimum D1 and the maximum D3 (the inner fixed bar receiving part 6a and the outer fixed bar receiving part 6a in FIG. If the two fixing bars 5, 5 are inserted into the fixing bar receiving portions 6b) and each hooking portion 7 is hooked to the opening/closing frame 8, the mounting surface 4a of the sheet member 4 will be at the lowest and highest height positions. This is an intermediate height position between the height positions.

When four fixed bar receiving parts are formed in the sheet member 4, one fixed bar receiving part 6c is formed at one end of the sheet member 4, as shown in FIG. 7 which is a modification of FIG. Three fixed bar receiving portions 6d, 6e, and 6f may be formed adjacent to each other at the other end of the member 4. In this case, one of the fixing bars 5 is always inserted into one fixing bar receiving part 6c at one end of the sheet member 4, and one of the fixing bars 5 is inserted into one of the fixing bar receiving parts 6d, 6e, 6f at the other end of the sheet member 4. Select one of the fixing bar receiving parts and insert the other fixing bar 5 therethrough. As a result, in FIG. 7, the two fixing bars 5, 5 are inserted into the two fixing bar receiving parts 6c, 6d whose mutual separation distance is the minimum D1, and each hooking part 7 is latched to the opening/closing frame 3. Then, the mounting surface 4a of the sheet member 4 will be at the highest height position. In addition, if the two fixing bars 5, 5 are inserted into the two fixing bar receiving parts 6c, 6f with a maximum distance of D3 from each other and each hooking part 7 is hooked to the opening/closing frame 3, the seat member The mounting surface 4a of No. 4 is the lowest height position. Furthermore, if the two fixing bars 5, 5 are inserted into the two fixing bar receiving portions 6c, 6e whose mutual distance is intermediate D2 and each hooking portion 7 is hooked to the opening/closing frame 3, the seat member The mounting surface 4a of No. 4 is at an intermediate height position.

Further, as shown in FIG. 8, which is a modification of FIG. The fixed bar receiving portions 6g and 6h may be formed spaced apart from each other. In this case, one of the fixing bars 5 is inserted into one of the two fixing bar receiving parts 6a, 6b at one end of the sheet member 4, and the fixing bar 5 is inserted into one of the two fixing bar receiving parts 6g, 6h at the other end of the sheet member 4. The other fixing bar 5 is inserted into either one of the two. As a result, in FIG. 8, the two fixing bars 5, 5 are inserted into the two fixing bar receiving portions 6a, 6g whose mutual separation distance is the minimum D1, and each hooking portion 7 is hooked to the opening/closing frame 3. Then, the mounting surface 4a of the sheet member 4 will be at the highest height position. Moreover, if the two fixing bars 5, 5 are inserted into the two fixing bar receiving parts 6b, 6h with a maximum distance of D4 from each other and each hooking part 7 is hooked to the opening/closing frame 3, the seat member The mounting surface 4a of No. 4 is the lowest height position. Furthermore, if the two fixing bars 5, 5 are inserted into the two fixing bar receiving portions 6b, 6g whose mutual distance is the first intermediate distance D2, and each hooking portion 7 is hooked to the opening/closing frame 3. , the mounting surface 4a of the sheet member 4 is at the first intermediate height position (<the highest height position). Furthermore, the two fixing bars 5, 5 are inserted into the two fixing bar receiving parts 6a, 6h whose mutual distance is a second intermediate distance D3 (D3>D2) to open and close each hook part 7. 3, the mounting surface 4a of the sheet member 4 becomes the second intermediate height position (<first intermediate height position). That is, in the example of FIG. 8, the height of the mounting surface 4a of the sheet member 4 can be adjusted in four stages by arranging the four fixed bar receiving parts 6a, 6b, 6g, and 6h on the sheet member 4. I can do it.

Further, as shown in FIG. 9, which is a modification of FIG. 7, one fixed bar receiving portion 6c is formed at one end of the sheet member 4, and two fixed bar receiving portions 6a, 6c are formed at the other end of the sheet member 4. 6b may be formed adjacent to each other. In this case, one of the fixing bars 5 is always inserted into one fixing bar receiving part 6c at one end of the sheet member 4, and one of the fixing bars 5 is inserted into one of the two fixing bar receiving parts 6a, 6b at the other end of the sheet member 4. The other fixing bar 5 is inserted. When the two fixing bars 5, 5 are inserted into the two fixing bar receiving parts 6a, 6c whose mutual separation distance is the minimum D1, the mounting surface 4a of the sheet member 4 becomes the highest height position, and the mutual separation distance becomes the minimum distance D1. When the two fixing bars 5, 5 are inserted into the two fixing bar receiving portions 6c, 6h with a maximum separation distance of D2, the mounting surface 4a of the sheet member 4 is at the lowest height position. In the example of FIG. 9, the height of the mounting surface 4a of the sheet member 4 can be adjusted in two stages by forming the three fixed bar receiving portions 6a, 6b, and 6c on the sheet member 4.

As shown in FIG. 10, which is a modification of FIG. 9, one fixed bar receiving portion 6c is formed at one end of the sheet member 4, and two fixed bar receiving portions 6g, 6h are formed at the other end of the sheet member 4. They may be formed spaced apart from each other. In this case, one of the fixing bars 5 is always inserted into one fixing bar receiving part 6c at one end of the sheet member 4, and one of the fixing bars 5 is inserted into one of the two fixing bar receiving parts 6g and 6h at the other end of the sheet member 4. The other fixing bar 5 is inserted. When the two fixing bars 5, 5 are inserted into the two fixing bar receiving parts 6c, 6g whose mutual separation distance is the minimum D1, the mounting surface 4a of the sheet member 4 becomes the highest height position, and the mutual separation distance becomes the minimum distance D1. When the two fixing bars 5, 5 are inserted into the two fixing bar receiving portions 6c, 6h with a maximum separation distance of D2, the mounting surface 4a of the sheet member 4 is at the lowest height position. Also in the example of FIG. 10, by forming the three fixed bar receiving portions 6c, 6g, and 6h on the sheet member 4, the height of the mounting surface 4a of the sheet member 4 can be adjusted in two stages. The difference between the example shown in FIG. 10 and the example shown in FIG. The difference between the highest height position and the lowest height position becomes large.

The example in FIG. 11 is a modification of FIG. 10, and the distance between the two fixed bar receiving portions 6g and 6h provided at the other end of the sheet member 4 in FIG. (However, D1<D2). In this case, the two fixed bars 5, 5 are inserted into two fixed bar receiving parts selected from the three fixed bar receiving parts 6c, 6g, and 6h. When the two fixing bars 5, 5 are inserted into the two fixing bar receiving parts 6g, 6h whose mutual separation distance is the minimum D1, the mounting surface 4a of the sheet member 4 is at the highest height position, and the mutual distance is the minimum. When the two fixed bars 5, 5 are inserted into the two fixed bar receiving parts 6c, 6h with a maximum separation distance of D3, the mounting surface 4a of the sheet member 4 becomes the lowest height position, and the mutual separation distance becomes When the two fixing bars 5, 5 are inserted into the two fixing bar receiving portions 6c, 6g which are at the intermediate height D2, the mounting surface 4a of the sheet member 4 is at the intermediate height position. In the example of FIG. 11, by forming the three fixed bar receiving portions 6c, 6g, and 6h on the sheet member 4, the height of the mounting surface 4a of the sheet member 4 can be adjusted in three stages.

Of course, if the number of fixing bar receiving portions 6 provided in the sheet member 4 is increased compared to that shown in the illustrated example, the height of the mounting surface 4a of the sheet member 4 can be adjusted in more stages.

As another embodiment, at least one of the two upper bars may also serve as at least one of the two fixing bars. To explain this in detail based on the example of FIG. 1, the fixing bar 5a shown by the arrow A in FIG. 1 is omitted, and the function previously performed by the fixing bar 5a is performed by the upper bar 2a above the fixing bar 5a. In this case, the upper bar 2a indicated by the arrow A is removable from the opening/closing frame 3, and functions as a fixing bar for fixing the sheet member 4 to the opening/closing frame 3. That is, the upper bar 2a is attached to the opening/closing frame 3 while being inserted into one of the fixed bar receiving portions 6 of the sheet member 4. Thereby, one end side of the sheet member 4 is fixed to the opening/closing frame 3 by the upper bar 2a. In this way, the number of constituent members of the mounting table 1 is reduced, so the structure of the mounting table 1 is simplified, which can also contribute to cost reduction.

In addition, in the example of FIG. 1, the fixing bar 5b on the other end side of the sheet member 4 may also be omitted in the same manner as described above, and the function performed by this fixing bar 5b may be performed by the upper bar 2b above it. Of course.

Although the embodiments of the present invention have been described above in detail with reference to the drawings, the specific configuration is not limited to these embodiments, and the design may be changed without departing from the gist of the present invention. Even if there is, it is included in the present invention. In addition, the above-described embodiments can be combined by using each other's technologies unless there is a particular contradiction or problem in their purpose, structure, etc.

2 Upper bar 4 Sheet member 5 Fixed bar 7 Hooking part 8 Leg member 9 Lower bar 9a Bracing

Claims (3)

Two X-shaped leg members whose intersection angle can be changed,
two upper bars connecting the upper ends of the two leg members;
two fixing bars for fixing the sheet member stretched over the two upper bars to the two leg members;
Each of the fixing bars is provided with a latching portion that can be latched to the two leg members on the lower side of the two upper bars. The mounting table frame according to claim 1, wherein lower portions of the two leg members are connected to each other by two lower bars. The mounting table frame according to claim 2, wherein a brace is installed between each of the lower bars and each of the leg members.

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