JPH0127725Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an improvement of a device for attaching a memo stand to a chair.

[Conventional technology]

It is well known that when attaching a memo stand to a chair, the memo stand can be flipped up from a horizontal position and rotated freely so as not to interfere with people sitting or standing up. 59−
Publication No. 27177 discloses that a bearing tube is fixed to the outer surface of a horizontal part of a support frame, a rotating tube is welded to a support fitting fixed to the lower surface of a memo stand, and a support shaft is inserted through the rotating tube and the bearing tube. By doing this, the memo stand is constructed so that it can freely rotate from a horizontal position toward the outside of the chair, while the head of the screw for fixing the spindle screwed into the rotating tube is set so that the memo stand is rotated at a strong angle of 90 degrees. By contacting the outer surface of the support frame while being rotated,
We are proposing a configuration in which the memo stand is held in an upright position.

[Problem that the invention attempts to solve]

However, as in the prior art, when the head of the screw screwed into the rotary tube is brought into contact with the support frame in order to hold the memo stand in an upright position, the screw contacts the frame in a point contact state. As the memo stand was repeatedly raised and lowered, the support frame was damaged, and since the screw head was screwed into a rotating tube, the force that rotated the memo stand acted as a large moment against the screw head. Therefore,
If the memo stand is thrown up strongly, or if a person or object accidentally touches the memo stand while it is in an upright position and a force is applied that causes the memo stand to rotate outward, the support frame may become depressed or the screws may bend and become deformed. There was a problem that caused the problem to occur.

In addition, when the memo stand is raised, the screws come into contact with the support frame, and when the memo stand is brought down, the support metal fittings are brought into contact with the support frame. a sound is generated,
There was also a problem with the lack of quietness.

The present invention aims to solve the problems in the above-mentioned prior art.

[Means for solving problems]

Therefore, in the present invention, a support frame having a horizontal part extending along the side of the seat plate of the chair is attached to one side of the chair, a bearing member is fixed to the outer surface of the horizontal part of the support frame, and the support frame is fixed to the outer surface of the horizontal part of the support frame. A memo stand is arranged horizontally on the upper surface of the horizontal part of the frame, and the memo stand can freely rotate outward from the side of the chair with respect to the bearing member via a metal plate support fixed to the lower surface of the memo stand. In the chair with a memo stand, which is pivotally attached to the support frame, a protective plate made of synthetic resin is attached to the lower surface of the support metal fitting, and the protective plate is supported by the upper surface of the horizontal part of the support frame and the upper surface of the bearing member. , while holding the memo stand in a horizontal state, a side plate is provided on each outer edge of the supporting metal fitting and the protective plate to project downward, and the lower end of the side plate of the protective plate is edge-wrapped around the lower end of the side plate of the supporting metal fitting. When the memo table is flipped up and rotated, the edge wrap portion of the side plate of the protection plate comes into contact with the outer surface of the lower end portion of the horizontal portion of the support frame.

[Functions and effects of the idea]

With this configuration, the synthetic resin protection plate disposed on the bottom surface is supported by the support frame and the bearing member, so that the horizontal state is maintained, and when the protection plate is flipped up from the horizontal state and rotated, The lower edge winding portion of the side plate comes into contact with the outer surface of the horizontal portion of the support frame, and the flipped up and rotated state is maintained. In this case, when the protection plate is flipped up and rotated, the lower end edge winding portion of the side plate of the protection plate comes into contact with the horizontal portion of the support frame over a wide range, and the lower end edge winding portion of the protection plate comes into contact with the bearing member. Since the memo stand can be spaced a certain distance from the axis, the force for rotating the memo stand does not cause a large moment to act on the lower edge of the side plate of the protection plate. Further, the side plates of the protection plate are reinforced by the side plates of the support fittings superimposed on the outer surface thereof.

Therefore, according to the present invention, when holding the memo stand in a flipped up and rotated state, the side plate of the synthetic resin protection plate is brought into contact with the support frame, so that the memo stand can be flipped up and rotated. This can reliably prevent the support frame from being damaged by an actual impact. In addition, the lower edge of the side plate of the synthetic resin plate contacts the support frame over a wide range, and
The moment generated at the abutment part itself can be reduced, and the side plates of the protection plate are also reinforced by the side plates of the support metal fittings, so even if a large force is applied to the memo stand to rotate it outward, the support frame will remain intact. This has the effect of preventing deformation and damage to the support metal fittings and side plates of the protective plate.

Furthermore, the memo stand is held in both the horizontal and raised positions by a synthetic resin protective plate that is in contact with it, and the support metal fittings do not come into direct contact with the support frame. Therefore, it also has the effect of reducing the contact noise that occurs when the memo stand is raised and lowered.

〔Example〕

Next, an embodiment of the present invention will be described based on the drawings. In the drawing, 1 is a chair comprising a seat plate 3 supported by metal pipe legs 2, 2 having an oval cross-section;
A memo stand is shown disposed above the side of the seat plate 3 via the support frame 5.

The support frame 5 is formed by extending the rear leg 2 of a pair of legs provided on the side of the seat plate 3 upward, and horizontally bending the upper end to the rear. A horizontal portion 5a extending along the side of the seat plate 3 is formed. A cylindrical bearing member 6 extending along the axis of the horizontal portion 5a is fixed to the outer surface of the horizontal portion 5a of the support frame 5 by welding, and the bearing member 6 and the horizontal portion 5a have a cross section. A U-shaped reinforcing member 7 is fitted and fixed to the bearing member 6 and the horizontal portion 5a by welding, respectively.

On the other hand, on the lower surface of the memo stand 4, a metal plate support 8 and a synthetic resin protection plate 9 attached to the lower surface of the support 8 are integrally fixed with screws 10. Side plates 8a and 9a are formed by bending downwards on the outer edges of the protective plate 9 and the protective plate 9, respectively, in a stacked state, and the side plate 9a of the support metal fitting is wrapped around the lower end of the side plate 9a of the protective plate. Furthermore, folded pieces 8b, 8b, which are bent inward from both left and right edges of the side plate 8a of the support fitting 8, are positioned on the left and right sides of the bearing member 6, and the left and right folded pieces 8b, 8
b and the bearing member 6 are combined into a synthetic resin bushing 1.
The pin 12 is pivotally connected via the pin 0.
The memo table 4 is configured to be rotatable from a horizontal state toward the outside of the chair 1.

In this case, the protruding dimension of the side plate 9a of the protection plate 9 is
When the memo stand 4 is rotated a little more than 90 degrees toward the outside of the chair 1, the hemline portion 9b formed at the lower end of the side plate 9a of the protection plate comes into contact with the outer surface of the lower end of the horizontal portion 5a of the support frame 5. Set it so that it matches.

Note that the upper end of the folded piece 8b formed on the side plate 8a of the support fitting 8 is fixed to the main body portion of the support fitting 8. (The folded pieces 8b may be formed by bending the left and right side edges of the main body of the support fitting 9 downward, and the front edges thereof may be fixed to the side end surfaces of the side plates 8b.) Further, the horizontal portion 5a of the support frame 5 extends diagonally rearward,
An armrest cover 13 is fitted onto this.

In the above configuration, when the memo stand 4 is in a horizontal state, the lower surface of the protection plate 8 is supported by the horizontal part 5a of the support frame and the bearing member 6 via the reinforcing member 7, so that its horizontal state is maintained. On the other hand, when the protection plate 9 flips up and rotates outward from the horizontal state, the hemline portion 9b at the lower end of the side plate 9a of the protection plate 9
comes into contact with the lower end of the horizontal portion 5a of the support frame 5,
The raised state is maintained.

In this case, when the memo stand 4 is in the raised state, the hemline portion 9b at the lower end of the side plate 9b of the protection plate comes into contact with the horizontal portion 5a over a wide range, so that the impact force caused by the rotation of the memo stand 4 is reduced. In addition to being distributed over a wide range, the edge wrap 9b of the protection plate can be separated from the axis of the bearing member 6 considerably, so that when the memo table 4 flips up and rotates, the moment acting on the edge wrap 9a is reduced. can be made smaller. In addition, the side plate 9 of the protective plate
a is reinforced by the side plate 8a of the support fitting. In this way, by being able to prevent the load from concentrating, reducing the moment itself associated with the rotation of the memo stand 4, and reinforcing the members, a strong force to rotate the memo stand 4 outward can be applied. Also, the horizontal portion 5a may be damaged or deformed into a dent.
This can prevent the problem of deformation of the side plate 9a made of synthetic resin.

Further, the holding of the memo stand 4 in the horizontal state and in the raised state is achieved by the synthetic resin protection plate 9 coming into contact with the horizontal part 5a, and the contact is large, as is the case when metal objects come into contact with each other. Since this rarely occurs, the memo table 4 can be raised and lowered quietly.

Note that when the reinforcing member 7 having the shape as in the embodiment is fitted to the horizontal portion 5a and the bearing member 6, the bearing member 6
Not only is the fixation of the memo pad 4 reinforced, but the memo pad 4 can be supported over a wide area, so the memo pad 4 can be stabilized when writing.
Moreover, it also serves as a cover when the memo stand 4 is in the upright position. Furthermore, if a pipe is used as the bearing member 6 and a memo stand is pivotally attached to the pipe via the bush 11, the diameter of the pipe as the bearing member 6 can be increased, so that the upper surface of the bearing member 6 and the horizontal portion 5a The distance from the top surface can be increased, the support area for the memo stand 4 can be increased, and the stability of the memo stand 4 can be improved.

Furthermore, when pivoting the support fitting 8, if a folded piece 8b is formed on the side plate 8a or the main body part as in the embodiment, and this is integrally connected to the side plate 8a and the main body part, the pivoting mechanism can be improved. It has the advantage of improving rigidity.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a diagram showing the main parts of the present invention.
Figure 3 is a perspective view of the chair, Figure 3 is a cross-sectional view of Figure 2, Figure 4 is a partially cutaway plan view of Figure 3, and Figure 5 is a cross-section of Figure 3 It is a diagram. 1...Chair, 2...Legs, 3...Seat board, 4...
Memo stand, 5...Support frame, 5a...Horizontal part of support frame, 6...Bearing member, 7...Reinforcement member, 8...Support metal fitting, 8a...Side plate of support metal fitting,
8b...Folding piece, 9...Protection plate, 9a...Side plate of protection plate, 9b...Edge wrapping portion, 12...Pin.

Claims (1)

[Scope of utility model registration request] A support frame having a horizontal portion extending along the side of the seat plate of the chair is attached to one side of the chair, and a bearing member is fixed to the outer surface of the horizontal portion of the support frame, while the upper surface of the horizontal portion of the support frame is fixed to the outer surface of the horizontal portion of the support frame. A memo stand is arranged horizontally, and the memo stand is pivoted to the bearing member so as to be rotatable outward from the side of the chair via a metal plate support fitting fixed to the lower surface of the memo stand. In the chair with a memo stand, a protective plate made of synthetic resin is attached to the lower surface of the support metal fitting, and the protective plate is brought into contact with the upper surface of the horizontal part of the support frame and the upper surface of the bearing member. While holding the stand in a horizontal state, a side plate is provided on each outer edge of the support metal fitting and the protection plate to project downward, and a lower end of the side plate of the protection plate is formed with a hem around a lower end of the side plate of the support metal fitting, 1. A device for attaching a memo stand to a chair, characterized in that when the memo stand is flipped up and rotated, an edge wrap portion of a side plate of the protection plate comes into contact with an outer surface of a lower end of the horizontal portion of the support frame.