KR20030051125A - A hinge which stops at a certain angle - Google Patents

Abstract

PURPOSE: A hinge with a limited angle range is provided to stop the hinge at a designated angle by a projected guide groove, therefore to simplify the structure and economize the use of raw materials. CONSTITUTION: The hinge with a limited angle range is composed of: a projected guide groove(12) making a hinge stopped at a limited angle; a hinge wing(20) provided with a catching projection(22) corresponding to the guide groove; a hinge pin(30) necessary to join matched hinges together. The catching projection rotates along the guide groove and then stops at a limited projection. Therefore the hinge halts without an additional stopper. Also the angle varies as required and the hinge is be divided into several sections, so that a user is able to choose a proper hinge size according to the one of an object to be put on.

Description

A hinge which stops at a certain angle}

The present invention relates to a hinge for stopping a piano hinge named as a hinge used for a well-known piano key cover at an angle angled so that it can be used for book support without a separate support stand.

Piano hinges currently used are thin and narrow in width but long in length, and are used for organ keyboard covers, such as organ keyboard covers, which are rather long in the transverse direction. It is also used as a substitute.

However, the piano hinges used above can be used to open and close the connecting parts and covers that connect the front panel of the piano and the keyboard cover (cover), but the sheet music is installed on the front panel of the organ and piano. Although the pedestal should have an angle of rotation of 90 °, the actual angle of rotation of the pedestal rotates 320 ° to 340 °, as with ordinary door hinges. Excessive impact on the panel causes damage.

However, in spite of the above problems, the reason for using the conventional piano hinge so far is that the product is not suitable as described above, but a product that can solve the problem until now has not been devised. to be.

In other words, the well-known piano hinge is used for the music stand and the general reading stand which are installed on the inner surface of the cover in addition to the piano keyboard cover. There is a need for a vertical surface inclined and a horizontal surface in the form of a pedestal or shelf so that the sheet music or books can be laid out in such a way that they can be reliably held vertically.

In addition, the vertical plane and the horizontal plane of the hinge, which are placed vertically with the score or book unfolded, require an angle of tilting slightly upward toward the back while maintaining an arbitrary angle of 90 ° perpendicular to each other. Since ordinary hinges, such as, do not maintain an arbitrary angle of 90 °, the hinges are attached to the piano keyboard cover as many times as possible, and then the combined wood support is used on one side of the hinges. When the hinge is extended, one end of the bracket is in contact with the front side of the key cover to maintain 90 °.

Therefore, none of the well-known hinges, including the piano hinges known to date, can function as a stand alone by the hinges themselves, and the hassle of separately manufacturing and combining a pedestal so that it can be stopped at an arbitrary angle, Even if you do so, whenever you use the pedestal, one side of the pedestal contacts the same place on the keyboard cover many times, so that the contact is inevitably damaged.

In addition, as far as the hinge does not impact the pedestal and the cover, and in particular, if the hinge itself can provide the music stand function without the use of a separate pedestal, such a hinge is It can be widely used in various fields such as products requiring 180 ° or decorative clocks with doors. In particular, the structure is very simple, the structure is very simple, the quality is improved, and the appearance protrusion is minimized, and the slim effect is achieved. As a result, the manufacturing cost can be greatly reduced.

The present invention solves the conventional problem and further maintains the 90 ° angle to open the book only by the hinge itself without a stand, as well as more than 100 ° to 120 ° or parallel angle 180 ° and more arbitrary angles To provide a hinge to maintain, and to split or expand or fold as necessary, the present invention forms a projection guide groove on the hinge of one of the hinge wings and the other of the hinge wings to the projection guide It is intended to provide a hinge that expands the choice of use by moving along the groove and stopping at the end of the protrusion guide groove to stop at an arbitrary angle, or stopping at an arbitrary angle, and partially dividing so that only the necessary parts can be opened and used. .

1 is a perspective view illustrating a stationary fixed state in a state in which the hinge of the present invention is deployed at 90 °

2, "b", "c", and "d" are side views illustrating the embodiment of the present invention.

Figure 2 "b" is a side view illustrating a state in which the hinge is folded unfolded

Figure 2 "c" is a side view illustrating the hinge unfolded state

Figure 2 "d" is a cross-sectional view taken along the line AA 'of FIG.

3 is a front view illustrating a state in which the hinge of the present invention is unfolded (the view of FIG. 2C shown in the right side of the drawing)

Figure 4 is a perspective view illustrating another embodiment of the present invention

5 "e", "f", "g" are side views illustrating the embodiment of FIG. 4.

Figure 5 "e" is a side view illustrating a state in which the hinge of the present invention is unfolded and folded

Figure 5 "f" is a side view illustrating the unfolded hinge state of the present invention

Figure 5 "g" is a sectional view taken along the line H-H 'of Figure 6 showing the hinge structure of the present invention

FIG. 6 is a front view of FIG. 5 "f" viewed from the right side in the drawing;

7 is a perspective view showing another embodiment of the present invention

Figure 8 is an exemplary side view showing an embodiment in which the hinge of the present invention is used.

<Explanation of symbols for main parts of the drawings>

10; Hinge wing a11; Hinge a

12; Turning guide groove 13; Screw hole

20; Hinge wing b21; Hinge b

22; Jamming projection 30; Hinge pin

1 is a perspective view showing in detail the components of the present invention.

"B" of FIG. 2 is a side view illustrating a state in which the hinge of the present invention is folded.

Figure 2 "c" is a side view illustrating a state of the implementation in which the hinge of the present invention unfolded at 90 °.

Figure 2 "d" is a cross-sectional side view illustrating the hinge of the present invention,

Figure 3 is a front view of the hinge of the present invention is unfolded, the hinge of the present invention, each hinge wings a, the hinge b (11) and the hinge b (21) formed intermittently in one longitudinal section; ) And hinge wings b (20) are formed.

In this case, as illustrated in FIGS. 1 to 3, the hinge 11 of the hinge wing a 10 forms a protrusion guide groove 12 for setting an arbitrary angle, and the hinge wing b 20 is an intermittent space. A locking projection 22 corresponding to the projection guide groove 12 is formed at the center of the cross section.

Subsequently, the hinges 11 and 21 of each of the hinge wings a, b (10) and (20) thus formed are matched with each other, and then the corresponding hinges 11 and 21 are penetrated. The hinge pin 30 is inserted into the hole and configured to be coupled and folded.

Meanwhile, as illustrated in FIG. 1 or FIG. 2, the coupling directions of the hinges 11 and 21 are preferably matched in one direction, but are not necessarily defined as such. It is possible.

However, even if the direction is changed, it is not preferable that the hinge a (11) and the hinge b (21) protrude from the perpendicular correlation line when the hinge blade (11) and the hinge blade (b) are unfolded at 90 degrees.

Subsequently, when the hinge hinges a, b (10), and (21) are folded, the hinge surfaces of the hinges are in close contact with each other as illustrated in FIG. 2B. When unfolded on both sides of the projection guide groove 12, the locking projection 22 is to follow and stop when it comes to the limit jaw of the projection guide groove 12, at this time the limit of the projection guide groove 12 formed in the rotation direction The jaw is formed at a position where the stopping angle of the locking protrusion 22 is stopped by 90 °, and the hinge wing b 20 stopped in such a state is stopped while maintaining the hinge wing a (10) and 90 °. .

Therefore, when the hinge blade b (20) is unfolded while only the hinge blade a (10) is fixed to an arbitrary fixing plate (organ / piano / reading table, etc.), the hinge blade a (10) when the arbitrary angle of the hinge is 90 ° The hinge wing b (20) is naturally stopped at a 90 ° angle, so that it can be used as a support for placing music or books on the hinge wing b (20). According to the above-described angles, the hinge provides a hinge that stops at an angle of 90 ° or more in addition to 90 ° depending on the type or condition of the hinge to be used.

In some cases, as illustrated in FIGS. 4 to 6 and the above means, the center portion of the hinge a 11 of the hinge blade a 10 is protruded to the outside to form the locking projection 22a, and thus the hinge blade b 20 ) May provide a means for stopping at an arbitrary angle, wherein the locking projection (22a) is to push the center portion of the hinge a (11) from the inside to the outside with a known embossing means, the hinge wings b (20) ) Is to be caught in the process of unfolding is caught on the engaging projection (22a) will be able to be determined at any angle.

In addition, in some cases, as illustrated in FIG. 7, the hinge blade b 20 may be partially folded or unfolded as necessary, and the structure may include the protrusion guide groove 12. In the hinge provided with the means of the locking projection 22 and the means of the locking projection 22a formed by protruding the center portion of the hinge a 11 to the outside, the hinge wing b 22 is divided into three parts so as to be combined. do.

When the hinge wing b (20) is divided into three parts and combined, the user can fully open or partially open the book holder according to the size of the book or the purpose of use, and in particular, the work can be performed with the book open. When you want to spread the hinge only split the center and the other side can be folded up so as not to be disturbed by the work can be used conveniently.

Unexplained reference numeral 40 denotes an open "book", and 50 denotes a normal reading stand or document holder and book holder.

As described above, the present invention is required by the stopper action is caught on the end of the projection guide groove 12 while the locking projection 22 is rotated, or caught on the locking projection 22a while the hinge blade b 22 is rotating. Hinge wing b (20) acting as a stand pedestal at any angle to be able to be stopped while maintaining the angle, so beautiful beauty without the trouble to construct a pedestal by processing a synthetic resin material, including wood It is a very useful invention that provides the effect of being able to provide a piano and a book holder, including a solid organ.

Claims (3)

In a conventional hinge in which a hinge wing a (10) having an intermittent hinge a (11) and a hinge wing (20) having a hinge b (21) on one longitudinal section are foldably joined by a hinge pin (30). , In the center of the hinge wing a (10) from the hinge a (11) from the top to a position corresponding to an arbitrary angle to form a projection guide groove 12 and in the center of the intermittent space cross section formed in the hinge wing b (20) Hinges to stop at any angle, characterized in that to form a locking projection (22), so that the hinge blade b (20) can be stopped and maintained at any angle. The method according to claim 1, wherein the hinge wing b (20) protrudes outward from the center of the hinge a (11) of the hinge wing a (10) so that the hinge wing b (20) stops at an arbitrary angle. Hinge. According to claim 1 or 2, wherein the hinge wing a (10) is formed of a long body and the hinge wing b (20) coupled to the hinge wing a (10) is formed into three equal parts Hinge to stop at any angle characterized by the construction.