JP3147296B2 - Chair memo table mounting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a memo table mounting device for a chair in which a memo table formed separately from a chair body can be freely attached and detached.

[0002]

2. Description of the Related Art In community halls and the like which are used for many purposes, rather than fixed chairs, chairs having a stacking function, for example, which can move freely and can be easily removed, are often used. These chairs are simple in structure and light in weight in terms of handling, so that they can be easily moved and stored, and many of them do not even have an armrest.

[0003] However, depending on the purpose of use, it is necessary to take notes and open documents as well as simply to sit down. Therefore, a memo stand that is formed separately from the chair is attached as necessary. A chair has been proposed and put into practical use in which a memo table is detachable when not in use so as not to hinder movement or storage. For example, a memo table of a chair disclosed in Japanese Utility Model Publication No. 7-41400 proposed by the present applicant is one example thereof.
Japanese Patent Application Publication No. 0-58 or Japanese Utility Model Application Laid-Open No. 58-5855 discloses a mounting device for a memo table.

The mounting of the memo table according to these proposals is, as typified by Japanese Utility Model Publication No. 7-41400, a mounting frame for opening the insertion opening 26 laterally below the seat 3 of the chair body 1. On the other hand, the memo table 2 is provided with an insertion rod 15 which is bent at a right angle to the lower end of a support 14 for supporting the memo plate 13, and the insertion rod 15 is used when the memo table is used.
6, the memo plate 13 is inserted above the seat 3 so as to be pushed into the mounting frame 21 provided horizontally below the seat 3, and the insertion rod 15 is horizontally moved from the mounting frame 21 when not in use. To remove the memo table from the chair body.

[0005]

As described above, the conventional chair for freely attaching and detaching the memo stand is provided with an insertion portion (or frame) provided on the lower side of the seat from the side surface thereof at the lower end of the support of the memo stand. Although the memo table can be easily attached and detached by inserting or pulling out the rod, simply inserting the insertion rod is not enough to use this memo table stably. It was necessary to provide a retaining means for holding the sheet.

In addition, while providing the above-mentioned retaining means, an insertion rod provided on a column of a memo table to prevent wobble during use and to ensure stability, and a mounting member of a chair body for receiving the insertion rod. Therefore, it was necessary to increase elasticity of the mounting portion and to increase engagement accuracy.

However, in addition to the inconvenience of separately providing the retaining means, the method of securing stability using elasticity (for example, a memo table mounting device described in Japanese Utility Model Publication No. 52-24090) depends on the strength of the spring force. There is a problem that a difference is made in the mounting work and sometimes the work becomes difficult. Further, a method of increasing the engagement accuracy by insertion is to reduce the fitting error, which causes a problem of lowering manufacturability.

SUMMARY OF THE INVENTION The present invention has been made in view of various problems in a conventional mounting device for a memo table, and has as its object to improve the manufacturability with a simple structure. Easy handling during operation,
Another object of the present invention is to provide a mounting device for a memo table that has excellent stability during use.

Another object of the present invention is to provide a mounting device for a memo table which can reduce a work space when attaching and detaching the memo table. It is an object of the present invention to provide a memo table mounting device for a chair, which can be easily and easily attached and detached without being disturbed by an adjacent chair or the like when connected to the chair.

As described above, chairs used in community halls and the like may be used alone, but are usually used side by side, and in the case of chairs having connecting means, Sometimes it is not possible to secure a work space between the chairs by connecting them together with the next chair. In such a case, in the case of the above-mentioned conventional memo table, the detachable operation with respect to the chair cannot be performed, and the memo table cannot be used. An object of the present invention is to provide a mounting device for a memo table in which a detachable operation can be performed without being hindered by an adjacent chair even in such a case.

[0011]

SUMMARY OF THE INVENTION The present invention has been made to achieve the above-mentioned object, and is characterized by a wide opening at the top of the chair body along the peripheral edge of the seat, and a lower opening at the bottom. A mounting frame portion forming a mounting opening portion where the width of the mounting opening portion becomes narrower, and a fitting portion adapted to the inner shape of the mounting opening portion at the lower end of the support column and adapted to the depth width at the memo table; A mounting member having an engaging frame portion that is substantially larger than the inner shape of the mounting opening portion is provided on one surface of the fitting portion on the insertion side, and the mounting member faces the mounting frame portion from one surface side. The engaging frame portion is inserted into the mounting opening, and then lowered to freely engage and disengage with the edge of the mounting opening so that the memo table can be freely attached to and detached from the chair body. It is an object of the present invention to provide a memo table mounting device for a chair.

The present invention also provides a memo table mounting device for a chair, wherein the mounting frame portion is provided along a front edge of a seat of a chair body. Is to do.

According to the present invention, in the memo table mounting apparatus constructed as above, the mounting frame portion is formed by a brace passed between a front leg of the chair body and a reinforcing front frame connecting the left and right front legs. It is an object of the present invention to provide a memo table mounting device for a chair.

Further, according to the present invention, in the mounting device for a memo table described above, the memo table is pivotally connected to an upper end of a column via a hinge portion, and can be freely used in a horizontal use state and a vertically non-use state. It is an object of the present invention to provide a memo table mounting device for a chair, which can be freely rotated.

An advantage of the memo table mounting device of the present invention is that when mounting the mounting frame portion provided on the chair body and the mounting member provided on the support of the memo table, the mounting members are first faced to each other in a vertical posture and then closely fitted. Then, the mounting member of the memo table is shifted downward and joined together. Particularly, by shifting down and engaging, the integrated connection is achieved, and this connection is further ensured by the weight of the memo table. In this way, it is possible to eliminate the backlash of the memo table at the time of use and to enable stable mounting.

Further, the present invention reduces the width of the mounting frame and the mounting member in the lateral direction to make the mounting frame and the mounting member flat, thereby reducing the amount of lateral movement upon fitting, and reducing the working space for the side of the chair. Then, as the memo table is lowered by its own weight, the connection between the mounting frame and the mounting member becomes tighter, and the reliability and stability are increased. Next, the present invention will be described based on embodiments shown in the drawings, and features thereof will be clarified.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION

FIG. 1 is a front view showing a use state of a mounting device for a memo table according to the present invention, FIG. 2 is a right side view thereof, and FIG.
4 is a plan view, FIG. 4 is a perspective view of a main part before mounting, and FIG. 5 is a perspective view of a main part in a mounted state. In the drawings, reference numeral 1 denotes a chair body, and 2 denotes a memo stand.

The chair body 1 comprises a frame made of a square pipe material. In this case, the left and right side frame portions 3a, 3 extend in parallel from the right and left ends of a rear frame portion (not shown) toward the front.
a is extended to form a U-shaped seat frame 3, front legs 4, 4 are suspended from the front ends of both side frame portions 3 a, 3 a, and left and right from the lower ends of the front legs 4, 4. Ground frame 5,5
And the right and left hind legs 6,
6 are erected, and the upper ends thereof are further extended to provide left and right side frames 7, 7, and the upper ends of the both side frames are connected by an upper frame 8 to form an inverted U-shaped backrest frame. Is formed from a single rectangular pipe material.

The frame joins the rear ends of the left and right side frames 3a, 3a, which are opposite ends of the rear frame (not shown), and the upper ends of the rear legs 6, 6, and the left and right front legs 4, 4. A frame by passing the front frame 9 between the upper end portions of
A seat 10 is mounted inside the U-shaped seat frame 3 and the front frame 9, and a backrest 11 is mounted on a backrest frame formed by the left and right side frames 7, 7 and the upper frame 8. Then the chair body is formed.

In the drawing, reference numeral 12 denotes a mounting frame portion provided on a frame for detachably attaching the memo table 2 to the chair body 1. In this case, the mounting frame portion has a substantially right-angled triangular shape by diagonally passing a brace 13a made of a rectangular pipe material between the front frame 9 and the left front leg 4 which cross horizontally along the front edge of the seat 10. Mounting opening 1 which is formed and has the same shape
4 are formed.

The mounting frame portion 12 is formed in such a manner that a single pipe material is passed between the front frame 9 and the front legs 4 so that the front frame and the front legs are incorporated in a part of the mounting frame portion 12. However, by passing the brace 13a between the two, the front legs 4 are particularly reinforced at the same time, thereby increasing the strength of the chair body. In this embodiment, a brace 13b is similarly provided between the front frame 9 and the right front leg 4 so as to be symmetrical in consideration of the balance between left and right in terms of strength and to make the appearance uniform. In the figure, reference numeral 15 denotes a connecting frame provided on the grounding frames 5, 5 for connecting the chair bodies side by side.

On the other hand, the memo stand 2 is composed of a memo plate 16 and a column 17 for supporting the memo plate. At the lower end of the column 17, a mounting member 18 is detachably mounted on the mounting frame 12 of the chair body 1. Is provided.

The mounting member 18 has an inverted right triangle triangular front plate 19 which is integrally welded and fixed to the column 17 as a base plate. Plates 20 are attached at intervals, and a piece 21 formed by bending the upper edge of the back plate at right angles is brought into contact with the back surface of the front plate 19 and welded thereto. The shaft 22 is passed between the portion and the back surface of the front plate 19 and integrally welded.

The back plate 20 forms an engaging frame portion to be hooked on the mounting frame portion 12, and the piece portion 21 and the shaft 22 constitute a fitting portion of the mounting member 18. The back plate 20, that is, the engagement frame portion 20 is formed so as to form an inverted right-angled triangle smaller than the mounting opening portion 14 of the mounting frame portion 12.

On the other hand, the fitting portion consisting of the piece 21 and the shaft 22 has the piece 21 on the base of the right triangle and the shaft 2
2 are arranged on a perpendicular line from one end of the bottom side, and are formed by the two members so as to form an inverted right triangle having substantially the same shape as the inner shape of the mounting opening 14, and the right triangle is formed. It is formed so as to be smaller than the shape of the engagement frame portion 20.

Further, the piece 21 constituting the above-mentioned fitting portion
The shaft 22 and the shaft 22 are formed to have a width equal to or slightly larger than the depth of the mounting opening 14, that is, the width of the brace 13 a forming the mounting frame 12 in this embodiment. I can put it.

The support 17 of the memo table 2 is formed of a flat elliptical pipe material, and a support shaft 23 is provided laterally on the outer flat surface of the upper end thereof. The two are assembled by rotatably mounting a bearing 25 vertically suspended from the support shaft 23, and when the support column 17 is vertically raised as described later, the support shaft 23 is moved from a posture in which the memo plate 16 is horizontally supported. It can be freely converted to a posture that jumps up to a fulcrum and stands up.

The memo table mounting device according to the present invention is constructed as described above, and the chair body 1 can be used alone. However, when a memo table is required, the left front leg 4 and the front frame 9 are used. And the mounting frame 12 formed by the brace 13a and FIG.
As shown in FIG. 2, the mounting member 18 provided at the lower end of the memo table support 17 is faced from the front so that the engaging frame portion 20 penetrates the mounting opening 14, and then the mounting member 18 is slid downward. It will be easy to install.

That is, when the engaging frame portion is pushed in and then shifted downward, the fitting portion including the piece portion 21 and the shaft 22 is accommodated in the opening portion 14, and both edges of the engaging frame portion 20 The part wraps around the back surface of each of the front leg 4 and the brace 13a, and engages with each other to engage with the front leg 4 and the brace 13a.
As shown in (1), the column 17 can be held and mounted in the upright state.

FIG. 6 shows that the engaging frame 20 of the mounting member is inserted into the mounting opening 14 from the front of the mounting frame 12, and the rear portion along the edge of the front plate 19 has the front legs 4, the front frame 9, and the brace. 13a
3 shows a state in which it is in contact with each front surface. FIG.
In this state, the guide 22 is slid downward in the direction of arrow a, that is, the front of the front leg 4 and the brace 13a is used as a guide, and the shaft 22 is fitted into the corner 26 formed by the front leg 4 and the brace 13a. 21, both ends 21a,
21b is brought into contact with the inner surface of each of the front leg 4 and the brace 13a, and the edge of the back plate 20 is also attached to the front leg 4 and the brace 1a.
3A shows a state in which the mounting frame portion 12 and the mounting member 18 are engaged with each other by being engaged with the back surface of the mounting frame 3a.

As is apparent from these drawings, the mounting opening 14 of the mounting frame 12 and the fitting portion formed by the piece 21 and the shaft 22 of the mounting member 18 fitted therein have substantially similar external shapes. Since it is formed in the shape of an inverted right-angled triangle, it is integrated when engaged, and the mounting member 18 is inclined by receiving the weight of the entire memo table.
As a result of being guided by a and being pressed downward where the width becomes narrower, they are combined and combined in a more closely contacted state.

On the other hand, the memo table 2 attached to the chair body 1 by the attachment of the mounting member 18 raises the column 17 so as to be parallel to the outside of the front leg 4 so as not to obstruct the occupant, as shown in the figure. Attachment, memo board 16
Is supported so as to protrude upward from the side of the chair body toward the upper side of the seat 10, so that the user can be attached to a convenient position.

Further, the memo board 16 which projects horizontally above the seat 10 during use can be retracted to a state where it is raised above the support column 17 by flipping the support shaft 23 to a fulcrum, so that the memo table is removed from the chair body. You can easily put on and take off seats without having to. In addition, when the memo board 16 is lowered horizontally after seating,
Since the upper end of the column provided by displacing the support shaft 23 outwardly contacts the lower surface of the mounting plate 24 and serves as a stopper, a stable horizontal state can be maintained.

The device of the present invention can be mounted by fitting the mounting member 18 provided on the support 17 of the memo table 2 to the mounting frame 12 provided on the chair body 1 as described above. Reference numeral 18 denotes a mounting frame portion 12 which is flat in its entirety including a fitting portion and an engagement frame portion, and receives the mounting member.
Also, since the mounting opening 14 is opened laterally and the whole is provided so as to hang down from the edge of the seat 10, the mounting member 18 can be engaged and disengaged without greatly moving the mounting member 18 laterally. .

Therefore, according to the apparatus of the present invention, a large space on the side is not required for attaching / detaching the memo table, and a space in which the column 17 and the mounting member 18 can be inserted from above along the mounting frame 12 at a minimum. Once secured, the work of attaching and detaching the memo table can be performed freely, without being hindered by an adjacent chair or the like.

Further, in addition to eliminating the need for a large work space without a thickness in the horizontal direction, the apparatus of the present invention projects the flat mounting member 18 laterally with respect to the column 17 so as to face the front of the chair body 1. As described above, the mounting frame portion 12 for receiving the mounting member 18 is attached to the front portion of the chair body, that is, the front legs 4 and the front frame 9 and the brace 13.
The mounting opening 14 can be formed in the front portion of the chair body 1 so that the mounting frame portion 12 and the mounting member 18 can be engaged and disengaged on the front side of the chair body 1. I have.

Therefore, according to the device of the present invention, even when chair bodies are arranged side by side and connected to each other so that space cannot be secured between the chairs, the operation of attaching and detaching the memo table can be performed. The inconvenience of being able to work only in a state where a space for drawing out horizontally is secured can be effectively avoided.

In the illustrated embodiment, the brace 13a is provided between the front leg 4 and the front frame 9 to form the mounting frame portion 12 in the shape of an inverted right triangle, and the mounting member 18 of the memo table is adapted to this shape. Was also the shape of an inverted right triangle,
The mounting frame and the mounting members connected thereto are
It can be formed in a U shape or a U shape.

For example, an appropriate metal bar, such as a square pipe, is bent into a V-shape, and the V-shaped bar is used.
To form the mounting frame portion 12,
The present invention may be applied to a case in which a V-shaped engaging frame portion adapted to the V-shaped mounting frame portion 12 and a mounting member 18 having a fitting portion are provided at the lower end of the mounting member, and both are fitted to each other so as to be freely attached and detached. Can be implemented.

Here, the mounting frame portion 12 and the mounting member 18 are formed in a V-shape or a U-shape for the same reason as the above-mentioned inverted right triangle shape. That is, when connecting the two, firstly, the fitting can be performed while being displaced up and down, and then, by sliding the mounting member 18 downward, the two shapes are made to match, thereby automatically connecting the two. It is in. More specifically, the mounting frame 1
2 and the mounting member 18 may be formed in a cross-sectional shape in which the upper part is wide and the lower part is narrower in a fitting relationship.

[0041]

As described above, according to the present invention, the memo table can be easily attached and detached, and the work space can be reduced in the work space without disturbing the adjacent chairs. On the other hand, since the mounting member of the memo table receives the weight of the memo table at the time of connection and strengthens the connection with the mounting frame portion provided on the chair body, there is an advantage that a stable mounting state with a sense of unity can be obtained.

[Brief description of the drawings]

FIG. 1 is a front view of a use state of a memo table mounting device according to the present invention.

FIG. 2 is a right side view of FIG.

FIG. 3 is a plan view of FIG. 1;

FIG. 4 is a perspective view showing the relationship between the mounting frame portion and the mounting member before mounting the memo table, as viewed obliquely from the lower rear side of the chair body.

FIG. 5 is a perspective view of the chair main body in a state where the memo table is attached, as viewed obliquely from the lower rear side.

FIG. 6 is an enlarged rear view of a main part showing a state where the mounting member of the memo table is fitted into the mounting frame of the chair body from the front side.

FIG. 7 is an enlarged front view showing a state in which a mounting member is fitted into a mounting frame portion and connected to the mounting frame portion with a part of the main portion being cut away;

FIG. 8 is an enlarged plan view of the mounting member.

FIG. 9 is an enlarged right side view of the mounting member.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Chair main body 2 Memo stand 4 Front leg 9 Front frame 10 Seat 12 Mounting frame part 13a Brace 14 Mounting opening 16 Memo plate 17 Prop 18 Mounting member 19 Front plate 20 Engagement frame part 21 One part 22 Axle

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) A47C 7/68 A47C 7/54

Claims (4)

(57) [Claims] 1. A mounting frame portion having a mounting opening portion having a wide upper opening and a narrower lower opening width is provided vertically along a peripheral portion of a seat on a chair body, and a memo table is provided on a memo table. A fitting portion which is fitted to the lower end of the support column and which is adapted to the inner shape of the mounting opening, and which is adapted to the depth width; and one surface on the insertion side of the fitting portion substantially corresponding to the outer shape of the fitting portion. A mounting member having an engaging frame portion that is large is provided, the mounting member is faced from one surface side of the mounting frame portion, the engaging frame portion is inserted through the mounting opening, and then lowered.
Was a note board mounting system of the chair, characterized in that the memo stand by hooking freely disengaged the edge of said mounting opening and to assemble the chair body. 2. The memo table mounting device for a chair according to claim 1, wherein the mounting frame portion is provided along a front edge of a seat of the chair body. 3. The chair according to claim 1, wherein the mounting frame portion is formed by a front leg of the chair body and a brace obliquely passed between a front frame connecting the front legs to each other. Note table mounting device. 4. The memo pad according to claim 1, wherein the memo pad is pivotally attached to an upper end of the support via a hinge so as to be freely rotatable between a horizontal use state and a vertically non-use state. A memo table mounting device for a chair, comprising: