EP adapter with anti-side slippage function

Abstract

This invention provides an EP adapter with a lateral slippage prevention function that solves the problems of lateral slippage that occurs when touching the record surface during DJ operation and the needle skipping that occurs when the record and EP adapter fall off, makes it easy to attach and remove records, and is also portable. [Solution] The EP adapter with anti-slip function uses an elastic material for the resin part 2 and has a slit part 4 that changes its outer circumference, allowing the record and EP adapter to fit snugly together and prevent lateral slippage when the record is inserted. The metal part 1 is made of a hard material, and the outer diameter of the record player's central axis and the inner diameter of the central hole 3 are adjusted to prevent lateral slippage of the record. The bottom of the resin part 2 has a taper 9 to prevent the record from falling off when inserted, and there is a recess 10 on the upper side to hold the EP adapter and make it easier to insert and remove the record. A carrying hole 5 is provided on the lower side of the resin part 2 so that a strap or the like can be passed through to prevent loss and improve portability.

Description

[Technical Field]

[0001] This invention relates to an EP adapter that is attached to the center axis of a record player and enables the appreciation of records (EP records) and DJ operation. [Background technology]

[0002] When DJs use records, they operate them by touching the surface directly with their hands and moving the record.When listening to a normal record, the needle follows the groove in one direction, but when DJs operate a record, when they touch the surface with their hands, there is a lateral misalignment due to an error between the center hole of the record and the outer diameter of the EP adapter, and there is also a lateral misalignment due to an error between the center axis of the turntable and the center hole of the EP adapter, which causes the needle to not follow the groove in one direction, resulting in problems such as needle skipping and skipping. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Jitsuzen Showa 52-155005 Summary of the Invention [Problem to be solved by the invention]

[0004] The center hole diameter of a typical record (EP record) is approximately 38mm, and conventional EP adapters are also manufactured with an outer diameter of approximately 38mm. However, the center hole diameter of a record can vary depending on the equipment used in the pressing process. This means that conventional 38mm EP adapters can sometimes be difficult to insert into DJ sets due to the record's small center hole diameter, or can be too large, resulting in rattle during insertion and resulting in stylus skipping and sound skipping during DJ play. Furthermore, when the record's center hole diameter and the EP adapter's outer diameter are inserted with minimal error, the two become difficult to separate and, in the worst case, can even damage the record. These problems are due to the fact that conventional EP adapters are made of hard resin or metal, resulting in a fixed outer diameter that cannot accommodate the varying center hole diameters of each record. Furthermore, differences in the center shaft diameter of the record player and the EP adapter's center hole diameter can cause rattle or lateral shifting after inserting the record during DJ play, resulting in stylus skipping and sound skipping. The EP adapter disclosed in Patent Document 1 uses a spring structure to prevent the record from becoming eccentric, but it has practical issues, such as the need for multiple internal springs, which makes the structure complicated and increases manufacturing costs. Another issue is the problem of lateral slippage that occurs when DJs operate the record by directly touching the surface with their hands. This invention was developed to eliminate these drawbacks. [Means for solving the problem]

[0005] The EP adapter's exterior is made of flexible and resilient TPU material, and the adapter features vertical and horizontal slits, allowing the adapter's outer length to be adjusted. When a record is placed on the adapter and pressure is applied to the bottom, elasticity is generated between the record's center hole and the EP adapter's outer periphery, creating a tight seal. The inside of the EP adapter is made of hard stainless steel, which is less likely to deform, and the outer diameter of the record player's center shaft and the inner diameter of the EP adapter's center hole are matched to prevent lateral displacement of the record. Furthermore, the EP adapter's bottom outer periphery is tapered to prevent the record from falling off when inserted. The EP adapter also features a recess on the top side, making it easier to hold the adapter and attach and detach the record. [Effects of the Invention]

[0006] As described above, the EP adapter with anti-slip feature of this invention can be used not only for its intended purpose of listening to records, but also for easy attachment by simply placing the record on the EP adapter and pressing downward, ensuring a tight seal between the two. This prevents lateral slippage and falling off, which can occur when a DJ touches the record surface with their hands and moves it back and forth, eliminating the problem of sound interruptions and skips caused by needle jumps during DJ performances. Furthermore, the recesses on the upper sides of the EP adapter make it easy to attach and remove records, helping to reduce DJ selection time. Furthermore, the hole on the EP adapter allows for a lanyard or other device to be attached around the neck, improving portability after use, preventing loss, and providing visual advertising. [Brief explanation of the drawings]

[0007] [Figure 1] 1 is a perspective view of an EP adapter with a lateral displacement prevention function according to the present invention; [Figure 2] 1 is a cross-sectional view of an EP adapter with a lateral displacement prevention function according to the present invention. [Figure 3] FIG. 2 is a rear view of the EP adapter with anti-side slippage function according to the present invention before it is attached to a record. [Figure 4]1 is a rear view of the EP adapter with anti-side slippage function according to the present invention after it has been attached to a record. [Figure 5] 1 is a perspective view including the back of the EP adapter with lateral slippage prevention function according to the present invention before it is attached to a record. [Figure 6] 1 is a perspective view including the back of the EP adapter with lateral slippage prevention function according to the present invention after it has been attached to a record. DETAILED DESCRIPTION OF THE INVENTION

[0008] The EP adapter with anti-side slippage function according to the present invention will be described in detail below with reference to the accompanying drawings. The following embodiments include not only essential features of the present invention, but also features that can be selectively adopted and features that can be combined as appropriate.

[0009] Figure 1 is a perspective view of an EP adapter with a lateral slippage prevention function according to the present invention. The EP adapter's resin part 2 is made of a resilient TPU resin material and has a vertical slit 4a, a horizontal slit 4b, a carrying hole 5, a curve 9 to prevent the record from falling out, and a recess 10 for a handle. The carrying hole 5 can be used to attach a strap or similar around the neck to prevent loss and for visual advertising. The resin part 2 does not necessarily have to be made of TPU resin; it can be made of any material that is resilient and allows for the construction of a slit.

[0010] Figure 2 is a cross-sectional perspective view, including the back, of the EP adapter with anti-slip function according to the present invention. The metal part 1 of the EP adapter is made of hard stainless steel to ensure secure attachment to the central shaft of the record player, and the outer diameter of the central shaft of the record player and the inner diameter of the central hole 3 of the metal part 1 are matched to a degree that prevents the record from slipping sideways. The contact surfaces of the metal part 1 and the resin part 2 of the EP adapter are firmly bonded together.

[0011] 2-4, the EP adapter with anti-slip function according to this invention features three vertical slits 4a spaced evenly on the outside of the adapter, while horizontal slits 4b are formed along the outer circumference of the metal portion 1 inside the adapter. The gaps created by these slits and the elastic resin portion 2 allow the EP adapter's outer length to be flexibly adjusted. This structure allows the EP adapter to be easily attached with one hand by simply pressing a record placed on the EP adapter downward, causing the EP adapter to fit snugly against the record's center hole. Furthermore, the recess 10 in Figure 1 can be held with a finger, allowing for easy removal by simply pulling the EP adapter off the record.

[0012] Figure 3 is a rear view of the EP adapter with anti-slip function according to the present invention, with no record attached, i.e., with no external force being applied. The inner diameter of the center hole of a record varies from record to record. When the inner diameter of the center hole of 200 records was measured, the range was 37.5 mm to 38.5 mm, with an error of approximately 1 mm. Taking these results into consideration, the outer diameter of the EP adapter with anti-slip function according to the present invention, when no external force is being applied, is designed to be 38.6 mm or larger.

[0013] Figure 4 is a rear view of the EP adapter with anti-slip function according to the present invention, showing a record attached to it—that is, when an external force is applied to the EP adapter. The change in the gap created by the slit 4 and the elasticity of the resin portion 2 allow the outer diameter of the body to be adjusted down to a minimum of 37 mm, enabling flexible adjustment of the outer diameter to match the inner diameter of the center hole of individual records, as described in

[0012] . Furthermore, while a record is attached to the EP adapter, elastic force is continuously generated at the base of the slit 6. This prevents the EP adapter and record from shifting sideways or falling off during DJ operation after attachment. The EP adapter returns to its original shape when removed from the record.

[0014] Figure 5 is a perspective view of the EP adapter of this invention, including the back side, when no record is attached, and Figure 6 is a perspective view of the EP adapter of this invention, including the back side, when a record is attached. The EP adapter has a tapered (curved) edge 9 on the bottom periphery. When a record is attached from the top of the EP adapter, the tapered edge 9 acts as a stopper when the center hole on the back side of the record 7 reaches the bottom of the EP adapter. This prevents the EP adapter from falling off the record when the EP adapter is used under stress, such as when listening to music or DJing. Furthermore, when the EP adapter and record are placed on the turntable of a record player, by pinching the recessed portion 10 (see Figure 1) with your fingers and lifting the EP adapter, the record also lifts up, allowing for smooth record changes at hand and saving time. [Explanation of symbols]

[0015] 1 Metal part 2 Resin part 3 center hole 4 Slit section 4a Vertical slit 4b Horizontal slit 5 Carrying hole 6 Base of the slit 7 Back of the record 8 cutting line 9 Tapered (warped) part 10 Recessed part

Claims

1. This EP adapter prevents records from shifting sideways, and uses a flexible and elastic material on the outside of the adapter, and has slits in the adapter so that the outer length of the adapter can be changed, and when a record is placed on top of the EP adapter, the diameter of the record's center hole and the outer length of the EP adapter fit snugly without any gaps. The inside of the EP adapter is made of hard metal, and the outer diameter of the record player's center shaft and the inner diameter of the EP adapter's center hole are adjusted to a degree that prevents the record from shifting sideways when the DJ touches the record surface, preventing the resulting needle skipping.

2. The EP adapter with anti-slip function described in claim 1, wherein the main body has a tapered (curved) shape that widens as it approaches the outer periphery of the bottom, securely holding the record when it is attached and during use, preventing it from falling off, and after use, when the main body is lifted, the record is lifted up as well, making it easy to attach, detach, and replace the record at hand.

3. 3. The EP adapter with a lateral displacement prevention function according to claim 1, wherein the main body has a recess on the upper side thereof, which allows for easy attachment and detachment of a record.

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