JPH0535837Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Purpose of the Invention] (Field of Industrial Application) The present invention relates to a cover hinge device for a sewing machine.

(Prior art) As a prior art related to the present invention,
A technique disclosed in Publication No. 21185 is known.

In this device, as shown in FIG. 9, a lid 22 is rotatably disposed on a panel body 21. And the back side 24 of this lid 22
and a panel body 21 that is closed by a lid 22.
The surface 23 can be used as a quick reference board for displaying information regarding sewing work, such as feed amount and width value for each sewing pattern.

(Problem to be solved by the invention) However, in the above device, when the lid 22 used as a quick reference board is opened, the rotation angle of the lid 22 is changed by 180 degrees due to the contact between the lid 22 and the upper end of the panel body 21. °, the field of view is restricted and disclosure items are difficult to see.

Another problem was that there was no means for holding the lid 22 in an open state, and the lid 22 was prone to fall over due to vibrations or when the sewing machine was tilted.

Therefore, the technical problem of the present invention is to provide a cover hinge device for a sewing machine that can increase the opening angle of the lid with respect to the panel body.

[Structure of the idea]

(Means for Solving the Problems) In order to solve the above problems, the technical solutions of the present invention include a panel main body having a recess with a front opening, and one end attached to the panel main body in an upper part of the recess. This is a cover hinge device for a sewing machine, comprising a supported arm member, and a panel cover whose upper end is pivotally supported by the other end of the arm member and which opens and closes the recess.

(Operation) The above means operates as follows. That is, by lifting the lower end of the panel cover, the panel cover rotates about the upper end which is pivoted to the other end of the arm member. Further, the arm member is pulled up by the panel cover and lifted upward while rotating around one end that is pivotally supported by the panel body.

In this way, since the pivot point of the panel cover can be moved upward by the arm member,
The panel cover can be opened wide.

(Example) An example of the present invention will be described based on FIGS. 1 to 8. FIG. 1 shows a cover hinge device of a sewing machine according to this embodiment. A concave surface 3 is formed above a front panel 2 constituting the front side of the sewing machine arm 1, and this concave portion 3 is disposed through a pair of left and right arm members 9 (only one is shown in FIG. 1). It is designed to be opened and closed by a cover 4. As shown in FIG. 5, the cover 4 is mainly composed of a front plate part 5 located on the front side of the sewing machine arm in a closed state, and a rear base part 6 bent rearward from the front plate part 5. There is. A rotation center hole 8 is formed in a portion protruding from the back surface of the rear organ portion 6, and a stopper portion 7 and a stopper portion 15 are formed on both sides of the rotation center hole 8. As will be described later, the stopper part 7 is a part that comes into contact with the arm member 9 when the cover 4 is moving from the open position to the closed position (as shown in FIG. 8).
The stopper part 15 is inserted into the arm member 9 when the cover 4 is moving from the closed position to the open position (as shown in FIG. 6).
This is the part that comes into contact with.

The arm member 9 is bent in a U-shape, and one end is pivotally connected to the concave surface 3 of the front panel 2, and the other end is pivotally connected to the cover 4. Also, a hinge surface 16 (sixth
) on the inner surface, and a hinge surface 18 (FIG. 8) that comes into contact with the stopper portion 7 on the outer surface.

Next, the mounting structure of the arm member 9 will be explained. Note that since the left and right arm members 9 have substantially the same mounting configuration, only one will be explained based on FIG. 5. FIG. 5 shows a sectional view of the sewing machine arm 1 with the cover 4 closed. front panel 2
A boss portion 3b is formed on the back side of the concave surface 3 formed to protrude toward the inside of the sewing machine.
One end of the arm mounting plate 13 is attached to this boss portion 3b with a screw 13a. The arm mounting plate 13 is formed into an L-shape that extends toward the front and then bends to the left in FIG. 5.
One end of the arm member 9 is rotatably attached to the leftward bent portion of the arm attachment plate 13 (shown in FIG. 3) by a hinge pin 11. The hinge pin 11 is loosely fitted into the rotation center hole 10 of the arm member 9 with the wave washer 12 in between, and is further fitted into the hinge mounting plate 13 and then fixed by caulking. And hinge pin 11
protrudes from the notch hole 3a formed in the concave surface 3 toward the cover 4 side. The other end of the arm member 9 is fitted with a hinge pin 14 whose one end is loosely fitted into the rotation center hole 8 of the cover 4 . This allows the arm member 9 and the cover 4 to be connected.

Next, the operation of this embodiment will be explained. Fifth
When the cover 4 in the closed position shown in the figure is pulled upward, the cover 4 rotates around the hinge pin 14 and shifts to the state shown in FIG. 6. As the cover 4 rotates, the stopper portion 15 of the cover 4 comes into contact with the hinge surface 16 of the arm member 9, and the cover 4 and the arm member 9 are combined. When the cover 4 is further pulled up, the arm member 9 rotates around the hinge pin 11, and the cover 4 moves upward together with the arm member 9 to reach the fully open state shown in FIG. In the fully open state, the arm member 9 is pulled out from the notch hole 3a formed in the concave surface 3, and
The entire cover 4 including the hinge pin 14 is located above the sewing machine arm 1, and the cover 4 can be opened wide.

Next, when closing the cover 4, pull the cover 4 toward you. As a result, the cover 4 rotates around the hinge pin 14 to the state shown in FIG. 8. Here, the stopper part 7 of the cover 4 comes into contact with the hinge surface 18 of the arm member 9, and the two become united, and by further pulling the cover 4, the arm member 9 rotates around the hinge pin 11. Once seated within the sewing machine arm 1, the cover 4 returns to the closed position shown in FIG.

In this embodiment, since the cover 4 moves upward together with the hinge pin 14, the opening angle can be made larger than before, and the display items on the front panel surface and the back surface of the cover can be easily seen, and these surfaces can be used as a quick reference table. will improve.

Moreover, since the back surface of the cover 4 is located on the same plane as the concave surface 3 when the cover 4 is in the open state, the appearance is elegant.

Furthermore, since the panel quick reference table has a large space, the concave surface 3 can also be used as a storage area for sewing-related accessories, and since the cover 4 is placed on the sewing machine arm 1, the cover 4 in the open state can be moved by vibration etc. I won't fall down.

[Effect of idea]

According to the present invention, since the cover moves upward together with its center of rotation, it is possible to maintain a larger opening angle than before. Therefore, the display items on the front panel surface and the back surface of the cover are easy to see, and the effectiveness of these surfaces as a quick reference table is improved.

Further, since the cover opens wide, the space as a recess becomes large and can be used as a storage area for small items, and the cover in the open state does not fall down due to vibrations or the like.

[Brief explanation of the drawing]

1 to 8 show an embodiment of the present invention,
Figure 1 is a perspective view of the sewing machine arm with the cover open, Figure 2 is an illustration of the opening/closing configuration of the cover, and Figure 3 is a perspective view of the sewing machine arm with the cover open.
The figure is an explanatory diagram of the attachment of the arm member to the sewing machine arm,
Fig. 4 is an explanatory diagram of how the arm member is attached to the cover, Fig. 5 is a sectional view of the sewing machine arm with the cover in the closed state, and Fig. 6 is a sectional view of the sewing machine arm when the cover is transitioning from the closed state to the open state. , FIG. 7 is a sectional view of the sewing machine arm when the cover is in the open state, and FIG. 8 is a sectional view of the sewing machine arm when the cover is in the middle of transition from the open state to the closed state. FIG. 9 shows an exploded perspective view of a conventional sewing machine arm. Explanation of symbols, 1...Sewing machine arm, 2...Front panel (panel body), 3...Concave surface (recess),
4...Cover (panel cover), 9...Arm member.

Claims (1)

[Scope of utility model registration request] A panel body having a recess with a front opening, an arm member having one end pivoted to the panel body above the recess, and a panel cover having an upper end pivoted to the other end of the arm member for opening and closing the recess. A cover hinge device for a sewing machine.