TWI736360B - Fixing device of interface card and memory card - Google Patents

Abstract

The invention is a fixing device of an interface card and a memory card, which is mainly used to connect a slot of a general motherboard and fix the interface card or the memory card on the slot. The fixing device includes a first fixing unit, a second fixing unit and a threaded fastener, wherein the first and second fixing units include a connecting unit and a side fixing unit. The threaded fastener connects the two connecting units of the first and second fixing units to adjust the distance between two side fixing units, so that the side fixing units can be used to press the two clip units on both sides of the slot of various lengths to prevent the clip units being unlocked and the memory card or the interface card being loose from the slot.

Description

Interface card and memory card fixing device

The invention relates to an interface card and a memory card fixing device, which can be used to connect slots of various sizes, and prevent the buckle unit from being unlocked and the memory card and the slot from loosening.

Please refer to Figure 1, which is a three-dimensional diagram of the conventional memory card and slot. Generally, the motherboard of a computer is usually provided with at least one slot 13, and an interface card or a memory card 11 can be inserted into the slot 13. Both ends of the slot 13 are respectively provided with a buckle unit 15 for buckling the memory card 11 inserted into the slot 13 to prevent the memory card 11 from falling off the slot 13.

Through the conventional slot 13 and the buckle unit 15 arrangement, although the memory card 11 can be preliminarily fixed on the slot 13. However, in the process of moving the computer, the buckle unit 15 is often detached from the memory card 11 due to vibration, which makes the connection between the memory card 11 and the slot 13 abnormal, which affects the normal use of the computer.

The present invention provides an interface card and memory card fixing device, which is used to further stabilize the connection relationship between the interface card or memory card and the slot, and can prevent the buckle unit from being unlocked due to vibration, thereby causing the interface card or memory card Release from the slot.

The present invention provides an interface card and memory card fixing device, which can be used to connect a slot on a motherboard of a general computer without changing the specifications of the slot on the motherboard. The memory card fixing device can clamp and fix the buckle units at both ends of the slot to prevent the buckle units from being unlocked.

The present invention provides an interface card and memory card fixing device, which includes a first fixing unit, a second fixing unit and a threaded fastener. The first fixing unit and the second fixing unit partially overlap and are tightened with threads. The firmware is connected to the first fixing unit and the second fixing unit. The threaded fastener can be rotated relative to the first fixing unit and the second fixing unit to adjust the length between the first fixing unit and the second fixing unit, so that the interface card and the memory card fixing device can be used to clamp a variety of Two buckle units on the slot with a long length to prevent the buckle unit from loosening.

The present invention provides an interface card and memory card fixing device, wherein the first and second fixing units respectively include a main body, a side fixing unit and a connecting unit. The side fixing unit is connected to one end of the main body, and is used for pressing and fixing the buckle units at both ends of the slot. The connecting unit is connected to the other end of the main body, wherein threaded fasteners are arranged on the two connecting units to connect and fix the first and second fixing units, and to adjust the distance between the two side fixing units.

To this end, the present invention provides an interface card and memory card fixing device for fixing an interface card or a memory card on a slot, wherein two ends of the slot are respectively provided with a buckle unit for buckle connection and insertion The two sides of the interface card or memory card of the slot include: a first fixing unit, including: a first main body; a first side fixing unit, connected to one end of the first main body, and used for pressing and A buckle unit at one end of the fixing slot; a first connecting unit, including a first connecting portion and a first overlapping portion, wherein one end of the first overlapping portion is connected to the other end of the first main body through the first connecting portion; The second fastening unit includes; a second main body part; a second side fixing unit connected to one end of the second main body part and used for pressing and fixing the fastening unit at the other end of the slot; and a second connection unit , Including a second connecting portion and a second overlapping portion, one end of the second overlapping portion is connected to the other end of the second body portion through the second connecting portion, the first overlapping portion overlaps the second overlapping portion, and the first connecting Portion facing the second connecting portion; and a threaded fastener disposed on the first connecting portion of the first fixing unit and the second connecting portion of the second fixing unit to connect the first fixing unit and the second fixing unit Unit and used to adjust the distance between the first side fixing unit and the second side fixing unit.

The interface card and memory card fixing device includes two side plates connecting the two opposite long sides of the first overlapping portion, so that an accommodating space is formed between the first overlapping portion and the two side plates for accommodating the second overlapping portion Department.

In the interface card and memory card fixing device, the first connecting part and the second connecting part are provided with a through hole, and the threaded fastener passes through the through hole of the first connecting part and the second connecting part to connect the first card The fixing unit and the second clamping unit.

In the interface card and memory card fixing device, the threaded fastener includes a screw, a stud or a bolt.

In the interface card and memory card fixing device, the first connecting portion is perpendicular to the first overlapping portion and the first main body portion, and the second connecting portion is perpendicular to the second overlapping portion and the second main body portion.

In the interface card and memory card fixing device, the first side fixing unit includes at least one first connecting plate and at least one first pressing part, the first pressing part is connected to the first main body part through the first connecting plate, The second side fixing unit includes at least one first connecting plate and at least one second pressing part, the second pressing part is connected to the second main body part through the second connecting plate, the first pressing part and the second pressing part Do not press and fix the two buckle units.

In the interface card and memory card fixing device, a first connecting hole is formed between the first body portion, the first connecting plate and the first pressing portion, and the second body portion, the second connecting plate and the second pressing portion are formed A second connecting hole is formed between the joints, and the two buckle units at both ends of the slot respectively pass through the first connecting hole and the second connecting hole.

The interface card and memory card fixing device includes two elastic gaskets respectively arranged on the first pressing part and the second pressing part, so that the first pressing part and the second pressing part are clamped by the elastic gaskets. Hold and fix the two buckle units.

The interface card and memory card fixing device includes an extension board connected to the other end of the second overlapping portion, so that the second connecting portion, the second overlapping portion and the extension board form a U-shaped structure.

In the interface card and memory card fixing device, the first connecting part, the second connecting part and the extension plate are provided with a through hole, and the threaded fasteners pass through the first connecting part, the second connecting part and the through hole of the extension plate .

Please refer to FIGS. 2 and 3, which are respectively a perspective exploded view and a perspective schematic view of an embodiment of the interface card and memory card fixing device and slot of the present invention. As shown in the figure, the interface card and memory card fixing device 20 is used to fix an interface card or a memory card 11 on a slot 13, and includes a first fixing unit 21, a second fixing unit 23, and A threaded fastener 25.

The interface card or memory card 11 is generally plate-shaped, and the slot 13 is provided with a long accommodating slot. The memory card 11 can be inserted into the accommodating slot of the slot 13 so that the connection terminals on the memory card 11 are in contact with the connection terminals in the accommodating slot of the slot 13. For example, the memory card 11 can be SDRAM and the slot 13 is SDRAM Slot.

Both ends of the slot 13 are respectively provided with a buckle unit 15 for buckling the two sides of the memory card 11 inserted into the slot 13. Specifically, one end of the buckle unit 15 is connected to the slot 13 through a connecting shaft, so that the buckle unit 15 can rotate relative to the slot 13.

The other end of the buckle unit 15 is provided with a buckle portion 151 and a pressing portion 153, wherein the buckle portion 151 and the pressing portion 153 are respectively located inside and outside of the buckle unit 15 and respectively protrude the buckle unit in different directions 15. The buckle portion 151 faces the memory card 11 inserted into the slot 13 and is used to buckle the groove on the side of the memory card 11, thereby preliminarily fixing the memory card 11 on the slot 13.

The pressing portion 153 protrudes in a direction opposite to the buckling portion 151, so that the user can operate the buckling unit 15 through the pressing portion 153. In actual application, the user can press the pressing portion 153 of the buckle unit 15 toward the direction of the memory card 11, so that the buckle portion 151 on the buckle unit 15 is buckled in the groove of the memory card 11, and the memory card 11 is fixed on the slot 13. In addition, the user can press the pressing portion 153 of the buckle unit 15 downward and/or outward, so that the buckle portion 151 on the buckle unit 15 leaves the groove of the memory card 11, and pulls the memory card 11 from the slot 13. out.

The interface card and memory card fixing device 20 of the present invention mainly further strengthens the connection relationship between the interface card or memory card 11 and the slot 13, and can effectively prevent the buckle unit 15 and/or the memory card 11 from being caused by vibration. Loose. In addition, the interface card and memory card fixing device 20 of the present invention is suitable for connecting to the slot 13 on the motherboard of a general computer, so it can prevent the snap-in unit without changing the specifications of the motherboard slot 13 15 and/or the purpose of releasing the memory card 11 from the slot 13, the structure of the interface card and the memory card fixing device 20 will be described in detail below.

The first fixing unit 21 includes a first body portion 211, a first side fixing unit 213, and a first connecting unit 215. The first side fixing unit 213 is connected to one end of the first body portion 211 and used for pressing The buckle unit 15 on one side of the slot 13 is engaged and fixed, and the first connecting unit 215 is connected to the other end of the first main body portion 211.

Specifically, the first body portion 211 may be elongated and includes two long sides and two short sides. The first side fixing unit 213 and the first connecting unit 215 are respectively connected to the two sides of the first body portion 211. A short side. In an embodiment of the present invention, the first body portion 211 may include two side edges 2111, which are respectively connected to the two long sides of the first body portion 211.

The first connecting unit 215 includes a first connecting portion 2151 and a first overlapping portion 2153. One end of the first overlapping portion 2153 is connected to the other end of the first main body portion 211 through the first connecting portion 2151. In an embodiment of the present invention, the first connecting portion 2151 and the first overlapping portion 2153 may be plate-shaped, and the first connecting portion 2151 is approximately perpendicular to the first overlapping portion 2153 and/or the first main body portion 211.

The second fixing unit 23 includes a second main body portion 231, a second side fixing unit 233, and a second connecting unit 235. The second side fixing unit 233 is connected to one end of the second main body 231 and is used for pressing The buckle unit 15 at the other end of the slot 13 is engaged and fixed, and the second connecting unit 235 is connected to the other end of the second main body 231.

Specifically, the second body portion 231 may be elongated and includes two long sides and two short sides, wherein the second side fixing unit 233 and the second connecting unit 235 are connected to the two sides of the second body portion 231, respectively. A short side. In an embodiment of the present invention, the second main body portion 231 may include two side edges 2311 connected to the two long sides of the second main body portion 231 respectively.

The second connecting unit 235 includes a second connecting portion 2351 and a second overlapping portion 2353. One end of the second overlapping portion 2353 is connected to the other end of the second main body portion 231 through the second connecting portion 2351. In an embodiment of the present invention, the second connecting portion 2351 and the second overlapping portion 2353 may be plate-shaped, and the second connecting portion 2351 is approximately perpendicular to the second overlapping portion 2353 and/or the second main body portion 231.

In an embodiment of the present invention, the first side fixing unit 213 includes at least one first connecting plate 2131 and at least one first pressing part 2133, wherein the first pressing part 2133 is connected to the first body through the first connecting plate 2131 The first pressing portion 2133 is approximately perpendicular to the first connecting plate 2131 and is used for pressing and fixing one of the buckle units 15. For example, the number of the first connecting plate 2131 is two, which are respectively connected to one end of the two long sides of the first body portion 211, and the other end of the first connecting plate 2131 is connected to the first pressing plate 2133, and is connected to the first body portion 211. 211. A first connecting hole 2132 is formed between the first connecting plate 2131 and the first pressing portion 2133.

The second side fixing unit 233 includes at least one second connecting plate 2331 and at least one second pressing part 2333, wherein the second pressing part 2333 is connected to the second body part 231 through the second connecting plate 2331, and the second pressing part The portion 2333 is approximately perpendicular to the second connecting plate 2331, and is used for pressing and fixing another buckle unit 15. For example, the number of the second connecting plate 2331 is two, which are respectively connected to one end of the two long sides of the second body portion 231, and the other end of the second connecting plate 2331 is connected to the second pressing plate 2333, and is respectively connected to the second body A second connecting hole 2332 is formed between the portion 231, the second connecting plate 2331 and the second pressing portion 2333.

When connecting the first fastening unit 21 and the second fastening unit 23, the first connection unit 215 of the first fastening unit 21 and the second connection unit 235 of the second fastening unit 23 can be overlapped, and a thread can be used. The fastener 25 connects the first connecting unit 215 and the second connecting unit 235, wherein the first and second overlapping portions 2153/2353 and the first and second connecting portions 2151/2351 form a U-shaped structure. For example, the first overlapping portion 2153 and the second overlapping portion 2353 overlap, and the threaded fastener 25 is used to connect the first fixing unit 21 and the second fixing unit 23.

Specifically, the first connecting portion 2151 faces the second connecting portion 2351, and the first connecting portion 2151 and the second connecting portion 2351 can be respectively provided with a through hole 2155/2355. When the first overlapping portion 2153 overlaps the second overlapping portion 2353, the perforation 2155 on the first connecting portion 2151 will be aligned with the perforation 2355 on the second connecting portion 2351, and the threaded fastener 25 can pass through the first connecting portion 2151 And the through holes 2155/2355 on the second connecting portion 2351 to connect and fix the first fixing unit 21 and the second fixing unit 23.

The threaded fastener 25 can be a screw, a stud, or a bolt. Specifically, when the threaded fastener 25 is a screw or a stud, the holes 2155/2355 on the first connecting portion 2151 and the second connecting portion 2351 can be At least one internal thread is provided. The external thread of the threaded fastener 25 matches the internal thread on the perforation 2155/2355, and can be locked on the perforation 2155/2355. In addition, when the threaded fastener 25 rotates relative to the first fixing unit 21 and the second fixing unit 23, the first fixing unit 21 and the second fixing unit 32 will be relatively displaced and change the first side fixing unit 213. The distance between the second side fixing unit 233 and the second side edge fixing unit 233 is as shown in FIG. 3 and FIG. 4.

In actual application, a part of the first overlapping portion 2153 and a part of the second overlapping portion 2353 can be overlapped first, so that the first connecting portion 2151 faces the second connecting portion 2351, and the threaded fastener 25 passes through the first connecting portion 2151 And the through holes 2155/2355 on the second connecting portion 2351 to initially complete the connection of the first fixing unit 21 and the second fixing unit 23, as shown in FIG. 3. Then the interface card and memory card fixing device 20 can be aligned and placed on the slot 13 and the interface card or memory card 11, and the threaded fastener 25 can be rotated to adjust the first side fixing unit 213 and the second side fixing unit The spacing of 233 allows the two buckle units 15 to pass through the first connection hole 2132 and the second connection hole 2332 respectively, and the two buckles are pressed and fixed by the first pressing portion 2133 and the second pressing portion 2333, respectively Unit 15, as shown in Figure 4.

In another embodiment of the present invention, as shown in FIG. 5, the threaded fastener 25 may be a bolt, and includes a stud 251 and a nut 253, and the through holes on the first connecting portion 2151 and the second connecting portion 2351 No internal thread is required in 2155/2355. In actual application, the stud 251 can be inserted into the through holes 2155/2355 on the first connecting portion 2151 and the second connecting portion 2351, and the nut 253 is locked on the stud 251. In addition, the stud 251 can be rotated relative to the nut 253 to adjust the distance between the first side fixing unit 213 and the second side fixing unit 233.

In another embodiment of the present invention, as shown in FIG. 2, the two long sides of the first overlapping portion 2153 may be provided with side plates 2157 respectively, wherein the two side plates 2157 are approximately perpendicular to the first overlapping portion 2153, and are positioned on the first overlapping portion 2153. An accommodating space 2152 is formed between an overlapping portion 2153 and the two side plates 2157. When connecting the first fixing unit 21 and the second fixing unit 23, the second overlapping portion 2353 of the second fixing unit 23 can be inserted into the accommodating space 2152 of the first fixing unit 21, so that the second overlapping portion 2353 can be displaced along the accommodating space 2152, the first overlapping portion 2153 and/or the side plate 2157. By arranging the side plates 2157 on the two long sides of the first overlapping portion 2153, the second overlapping portion 2353 can be restricted, and the relative rotation of the first fixing unit 21 and the second fixing unit 23 can be avoided, so as to facilitate the adjustment of the fixing of the first side. The distance between the unit 213 and the second side fixing unit 233.

An extension plate 2357 may be provided at one end of the second overlapping portion 2353 that is not connected to the second connecting portion 2351, wherein the second connecting portion 2351, the second overlapping portion 2353, and the extension plate 2357 are approximately U-shaped in cross section. The shape of the extension plate 2357 approximates the cross-section of the accommodating space 2152, and the area of the extension plate 2357 is slightly smaller than or equal to the cross-sectional area of the accommodating space 2152, which can further prevent the relative rotation or relative rotation of the first clamping unit 21 and the second clamping unit 23 swing. In addition, the extension plate 2357 can also be provided with a through hole 2356, wherein the threaded fastener 25 or the stud 251 can pass through the first connecting portion 2151, the second connecting portion 2351 and the perforation 2155/2355/2356 on the extension plate 2357 to connect And fix the first fixing unit 21 and the second fixing unit 23.

In an embodiment of the present invention, when looking down from the top of the interface card and memory card fixing device 20, the appearance of the first pressing portion 2133 and the second pressing portion 2333 may be approximately L-shaped or U-shaped. In addition, an elastic gasket can be further provided on the inner surface of the first pressing part 2133 and the second pressing part 2333, so that the first pressing part 2133 and the second pressing part 2333 are clamped and fixed by the elastic gasket. Snap unit 15. For example, the elastic gasket may be a rubber sheet or foam, and is adhered to the inner surfaces of the first pressing part 2133 and the second pressing part 2333 to further prevent the buckle unit 15 from loosening.

In actual application, a part of the first overlapping portion 2153 and part of the second overlapping portion 2353 can be overlapped first, and the threaded fastener 25 can be passed through the perforations 2155/2355 on the first connecting portion 2151 and the second connecting portion 2351 to The connection of the first fastening unit 21 and the second fastening unit 23 is preliminarily completed, as shown in FIG. 3. Then the interface card and memory card fixing device 20 can be aligned and placed on the slot 13 and the interface card or memory card 11, and the threaded fastener 25 can be rotated to adjust the first side fixing unit 213 and the second side fixing unit The spacing of 233 allows the two buckle units 15 to enter the first connection hole 2132 and the second connection hole 2332 respectively, and makes the first pressing part 2133 and the second pressing part 2333 press and fix the two buckle units respectively 15, as shown in Figure 4.

In an embodiment of the present invention, as shown in FIG. 6, the first overlapping portion 2153 of the first connecting unit 215 and the second overlapping portion 2353 of the second connecting unit 235 may be plate-shaped or elongated, and include two A short side and two long sides, wherein one short side of the first overlapping portion 2153 and the second overlapping portion 2353 connects the first connecting portion 2151 and the second connecting portion 2351 respectively.

Specifically, the two long sides of the first overlapping portion 2153 of this embodiment are not provided with side plates 2157. In actual application, a part of the first overlapping portion 2153 and a part of the second overlapping portion 2353 can be overlapped first, and the threads are tightened. The firmware 25 passes through the through holes 2155/2355 on the first connecting portion 2151 and the second connecting portion 2351. Then turn the threaded fastener 25 to adjust the distance between the first side fixing unit 213 and the second side fixing unit 233, so that the first pressing part 2133 and the second pressing part 2333 press and fix the two buckle units respectively 15, as shown in Figure 7. In an embodiment of the present invention, the threaded fastener 25 may include a stud 251 and a nut 253.

The above are only the preferred embodiments of the present invention, and are not used to limit the scope of implementation of the present invention, that is, all the shapes, structures, characteristics and spirits described in the scope of the patent application of the present invention are equally changed and modified. , Should be included in the scope of patent application of the present invention.

11: Memory card 13: Slot 15: buckle unit 151: buckle part 153: Pressing part 20: Interface card and memory card fixing device 21: The first card fixing unit 211: The first main body 2111: side 213: The first side fixing unit 2131: The first connection board 2132: The first connection hole 2133: The first pressing part 215: The first connection unit 2151: The first connection part 2152: accommodating space 2153: The first overlap 2155: Piercing 2157: side panel 23: The second card fixing unit 231: Second main body 2311: side 233: second side fixing unit 2331: second connecting plate 2332: second connecting hole 2333: The second pressing part 235: second connection unit 2351: The second connecting part 2353: second overlap 2355: Piercing 2356: Piercing 2357: Extension board 25: Threaded fasteners 251: Stud 253: Nut

Figure 1 is a three-dimensional schematic diagram of a conventional memory card and slot.

2 is an exploded perspective view of an embodiment of the interface card and memory card fixing device and slot of the present invention.

3 is a perspective view of an embodiment of the interface card and memory card fixing device and slot of the present invention.

4 is a perspective view of an embodiment of the connection slot of the interface card and the memory card fixing device of the present invention.

5 is a perspective view of another embodiment of the connection slot of the interface card and the memory card fixing device of the present invention.

6 is a perspective exploded view of another embodiment of the interface card and memory card fixing device and slot of the present invention.

FIG. 7 is a perspective view of another embodiment of the connection slot of the interface card and the memory card fixing device of the present invention.

11: Memory card

13: Slot

15: buckle unit

151: buckle part

153: Pressing part

20: Interface card and memory card fixing device

21: The first card fixing unit

211: The first main body

2111: side

213: The first side fixing unit

2131: The first connection board

2132: The first connection hole

2133: The first pressing part

215: The first connection unit

2151: The first connection part

2152: accommodating space

2153: The first overlap

2155: Piercing

2157: side panel

23: The second card fixing unit

231: Second main body

2311: side

233: second side fixing unit

2331: second connecting plate

2332: second connecting hole

2333: The second pressing part

235: second connection unit

2351: The second connecting part

2353: second overlap

2355: Piercing

2356: Piercing

2357: Extension board

Claims (10)

An interface card and memory card fixing device is used to fix an interface card or a memory card on a slot, wherein two ends of the slot are respectively provided with a buckle unit for buckling the connection of the slot The two sides of the interface card or the memory card include: A first clamping unit, including: A first body part; A first side fixing unit connected to one end of the first main body and used for pressing and fixing the buckle unit at one end of the slot; A first connecting unit, including a first connecting portion and a first overlapping portion, wherein one end of the first overlapping portion is connected to the other end of the first main body portion through the first connecting portion; A second fixing unit, including; A second body part; A second side fixing unit connected to one end of the second main body and used for pressing and fixing the buckle unit at the other end of the slot; A second connecting unit includes a second connecting portion and a second overlapping portion, wherein one end of the second overlapping portion is connected to the other end of the second main body portion through the second connecting portion, and the first overlapping portion is connected to the The second overlapping portion overlaps, and the first connecting portion faces the second connecting portion; and A threaded fastener is provided on the first connecting portion of the first fixing unit and the second connecting portion of the second fixing unit to connect the first fixing unit and the second fixing unit, and use To adjust the distance between the first side fixing unit and the second side fixing unit. The interface card and memory card fixing device according to claim 1, comprising two side plates connecting the two opposite long sides of the first overlapping portion, so that an accommodating space is formed between the first overlapping portion and the two side plates Used for accommodating the second overlapping portion. The interface card and memory card fixing device according to claim 1, wherein the first connecting portion and the second connecting portion are provided with a through hole, and the threaded fastener passes through the first connecting portion and the second connecting portion The through hole of the part is used to connect the first fixing unit and the second fixing unit. The interface card and memory card fixing device according to claim 3, wherein the threaded fastener includes a screw, a stud or a bolt. The interface card and memory card fixing device according to claim 1, wherein the first connecting portion is perpendicular to the first overlapping portion and the first main body portion, and the second connecting portion is perpendicular to the second overlapping portion and the first body portion. 2. The main body. The interface card and memory card fixing device according to claim 1, wherein the first side fixing unit includes at least one first connecting plate and at least one first pressing part, and the first pressing part passes through the first connection The board is connected to the first main body part, and the second side edge fixing unit includes at least one first connecting plate and at least one second pressing part, the second pressing part is connected to the second main body part through the second connecting plate , The first pressing part and the second pressing part respectively press and fix the two buckle units. The interface card and memory card fixing device according to claim 1, wherein a first connecting hole is formed between the first body portion, the first connecting plate, and the first pressing portion, and the second body portion, A second connecting hole is formed between the second connecting plate and the second pressing part, and the two buckling units at both ends of the slot respectively pass through the first connecting hole and the second connecting hole. The interface card and memory card fixing device according to claim 7, including two elastic pads respectively disposed on the first pressing part and the second pressing part, so that the first pressing part and the second pressing part The joint part clamps and fixes the two buckle units through the elastic gasket respectively. The interface card and memory card fixing device according to claim 1, comprising an extension plate connected to the other end of the second overlapping portion, so that the second connecting portion, the second overlapping portion and the extension plate form a U-shape的结构。 The structure. The interface card and memory card fixing device according to claim 9, wherein the first connecting portion, the second connecting portion and the extension plate are provided with a through hole, and the threaded fastener passes through the first connecting portion, The second connecting portion and the perforation of the extension plate.

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