JP2007218429A - Spring clip - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a spring clip easy to be installed in a hard plate and a hard cover without looseness. <P>SOLUTION: This spring clip has a base and a presser part. The base and the presser part are movably assembled by a spring, and the presser part is tightly pushed to the base by the work of the spring, and the presser part can be moved to be separated from the base. One or more installing means 1 are provided in a lower side surface of a bottom wall extended in the horizontal direction of the base, and the installing means has one or more sharp free ends extended downward from the lower side surface of the bottom wall. This spring clip can be easily installed in a hard plate and a hard cover without using an additional rivet or the like. Furthermore, since the sharp free end is bent or deformed inside the hard plate and the hard cover by receiving external force, the spring clip is surely installed in the hard plate and the hard cover. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a spring clip.

Spring clips are widely used to clamp and store documents. When used in practice, the spring clip is typically attached to a hard plate or file cover with at least one rivet. The rivet has a head portion that engages with the hard plate or cover, and a deformable trail portion that engages and deforms with the recess of the spring clip to attach the spring clip to the hard plate or cover. Have.
US 5,842,807 US 5,160,209 US 5,772,348 US 09 / 666,653 CN 01104344. X

However, the disadvantage with such a design is that the spring clip may swing relative to the hard plate or cover, resulting in a loose connection between them. Furthermore, the task of attaching the spring clip to a hard plate or cover is very cumbersome.
There is a need for an improved spring clip.

  The object of the present invention is to solve the above-mentioned problems of the prior art, and not only can be easily attached to a hard plate or cover, but also make a secure connection without looseness between the spring clip and the hard plate or cover. It is to provide a spring clip that can.

  Therefore, the spring clip of the present invention is a spring clip having a base and a pressing portion. The base and the presser part are movable and are integrally assembled by a spring. The presser part is strongly pressed against the base by the action of the spring, and the presser part can be moved away from the base. One or more mounting means are provided on the lower surface of the bottom wall extending in the horizontal direction of the base. Each mounting means has one or more pointed free ends extending downward from the bottom surface of the bottom wall.

  With this configuration, the present invention achieves the above object.

Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings in the following description.
As shown in FIGS. 1 to 10, the spring clip 100 according to the first embodiment of the present invention usually includes a base 101, a holding portion 103, and a spring 105. The base 101 is formed in such a manner that an elongated sheet is bent approximately 90 degrees to form an upstanding side wall 107 and a horizontally extending bottom wall 109. Two or more protrusions 111 are formed on the upper edge of the side wall 107 of the base 101, and each of the protrusions 111 is wound so that a through hole 113 is formed therein. The presser portion 103 is formed by bending an elongated sheet into an arc shape. In addition, a presser handle 117 extending outward and upward is provided at the center of the inner edge in the longitudinal direction of the presser portion 103 that engages with the base 101. Further, two or more protrusions 119 are formed on the inner edge in the longitudinal direction of the presser portion 103 so as to sandwich the presser handle 117. The longitudinal outer edge 123 of the presser portion 103 is formed as a serrated outer edge in order to clamp tight paper.

  The base 101 and the pressing portion 103 are assembled together by a spring 105. The spring 105 is a spiral spring having two free ends 127 and 129. In the assembled state, the hollow space of the spring 105 includes a through hole 113 of the protrusion 111 at the upper edge of the side wall 107 of the base 101, and a through hole 121 of the protrusion 119 at the inner edge in the longitudinal direction of the holding portion 103. It is aligned on a straight line. From this state, the elongated rod 131 is passed through the through hole 113, the through hole 121 and the spring 105. Then, the two free ends 127 and 129 come into contact with the outside of the side wall 107 of the base 101 and the upper side surface of the holding portion 103, respectively. Thus, the assembly of the spring clip 100 is completed. In order to hold the spring 105 in place, concave portions 115 and 125 are formed on the outer side of the side wall 107 of the base 101 and on the upper side of the pressing portion 103, respectively, and accommodate the two free ends 127 and 129, respectively. The concave portions 115 and 125 are usually formed on the side wall 107 and the pressing portion 103 of the base 101 by punching. In use, the presser handle 117 at the inner edge in the longitudinal direction of the presser part 103 is pressed against the elastic force of the spring 105. Then, since the presser portion 103 and the base 101 are separated from each other, it is possible to insert or remove paper. When the application of force to the presser handle 117 at the inner edge in the longitudinal direction of the presser part 103 is stopped, the presser part 103 is pressed firmly against the base 101 under the action of the spring 105, and the paper is held.

  On the lower surface of the bottom wall 109 extending in the horizontal direction of the base 101, at least one mounting means 133 is formed for the purpose of securely mounting the spring clip 100 to a hard plate or cover. Each mounting means 133 has at least one pointed free end 135 extending downward from the lower surface of the bottom wall 109. As a preferred configuration, two mounting means 133 are formed on the lower surface of the bottom wall 109 extending in the lateral direction of the base 101. Each mounting means 133 is provided near one end of the bottom wall 109 and has at least one pointed free end 135. More preferably, each mounting means 133 has a plurality of pointed free ends 135 in a distributed manner on the circumference. FIG. 9 schematically shows a state in which the spring clip 100 according to the first embodiment of the present invention is attached to a hard plate 137. 10 is a cross-sectional view taken along line BB in FIG. The sharp free end 135 may be inclined slightly outward. Then, when it is bitten on a hard plate 137 or the like, the sharp free end 135 is inclined outward and further spreads by the action of an external force, so that the spring clip has a hard plate 137 or the like as shown in FIG. It is securely attached. In order to simplify the processing procedure, the pointed free end 135 is formed integrally with the lower surface of the bottom wall 109 by cutting and punching the bottom wall 109 of the base 101. As a more preferable configuration, the bottom wall 109 of the base 101 is cut and punched so that the sharp free ends 135 are uniformly distributed on the circumference of the bottom surface of the bottom wall 109. It is made by. Therefore, the mounting means 133 has a chrysanthemum shape as a whole.

  As shown in FIGS. 11 to 20, the spring clip 200 according to the second embodiment of the present invention typically includes a base 201, a holding portion 203, and a handle 205. The base 201 is formed in such a manner that an elongated sheet is bent at approximately 90 degrees to form an upstanding side wall 207 and a horizontally extending bottom wall 209. The presser part 203 extends in the form of a thin bar. The handle 205 has a horizontal top wall 211 and a side wall 213 bent downward at an angle of about 90 degrees.

  Four protruding walls 215 bent upward at an angle of about 90 degrees are formed on the bottom wall 209 of the base by punching. The number of protruding walls 215 may be more or less than four as required. The base 201, the pressing portion 203, and the handle 205 are integrally assembled in a movable manner by three pivot shafts 217 and springs 219. The pivot shaft 217 is supported in a hole in the side wall and the protruding wall 215 of the base. Therefore, the handle 205 is installed inside the side wall 207 of the base and can rotate around the pivot shaft 217 that supports the spring 219. Further, the handle side wall 213 is proximate to the inside of the base side wall 207. Further, the protruding portion 221 protruding in an arch shape is formed in an integrated form with the side wall 213 of the handle. An opening 223 for receiving the protruding portion 221 is provided on the side wall 207 of the base at a position corresponding to the protruding portion 221.

  As can be seen from FIG. 16, the pivot shaft 217 that supports the spring 219 is straight, while the other two pivot shafts 217 that are directly attached to the holding portion 203 are bent. Of the ends of the spring 219, the end that engages with the handle 205 is straight, while the other end of the spring 219 on the side attached to the holding portion 203 protrudes outward. Is bent. One end of the spring 219 engages with the inside of the handle 205, and the opposite end protruding outward is attached to the holding portion 203, so that the handle 205 protrudes around the pivot shaft 217 that supports the spring 219. When the portion 221 and the opening 223 are rotated in the first direction, which is a direction in which they approach each other, the holding portion 203 is moved onto the bottom wall 209 of the base as the handle 205 rotates. When the handle 205 is further rotated against the repulsive force of the spring 219, the protrusion 221 on the side wall 213 of the handle 205 is accommodated in the opening 223 of the side wall 207 of the base and is fixed thereto. At the same time, the holding portion 203 is pressed against the bottom wall 209 of the base under the action of the spring 219, and the document is clamped between the holding portion 203 and the bottom wall 209 of the base. When the handle 205 is pulled in the direction of the pressing portion 203 and the protrusion 221 goes out of the opening 223, the pressure applied to the pressing portion 203 from the spring 219 is lost. Then, it becomes possible to take out the document between the pressing portion 203 and the bottom wall 209 of the base. If more documents need to be sandwiched between the base pressing portion 203 and the bottom wall 209, the handle 205 is moved in a direction opposite to the first direction around the pivot shaft 217 that supports the spring 219. When it is turned in the direction of 2, the holding portion 203 is lifted from the bottom wall of the base via the other end of the spring and the pivot shaft.

  At least one mounting means 233 is formed on the lower surface of the bottom wall 209 extending in the horizontal direction of the base 201 for the purpose of securely mounting the spring clip 200 to a hard plate or cover. Each mounting means 233 has at least one pointed free end 235 extending downward from the lower surface of the bottom wall 209. As a preferred configuration, two mounting means 233 are formed on the lower surface of the bottom wall 209 extending in the horizontal direction of the base 201. Each mounting means 233 is provided near one end of the bottom wall 209 and has at least one pointed free end 235. More preferably, each of the mounting means 233 has a plurality of pointed free ends 235 in a distributed manner on the circumference. FIG. 19 schematically shows a state in which a spring clip 200 according to the second embodiment of the present invention is attached to a hard plate 137. 20 is a cross-sectional view taken along line BB in FIG. The sharp free end 235 may be inclined slightly outward. Then, when it is bitten on a hard plate 137 or the like, the pointed free end 235 is inclined outward and further spreads by the action of an external force, so that the spring clip is shown in FIG. It is securely attached. In order to simplify the processing procedure, the sharp free end 235 is formed in an integrated manner on the lower surface of the bottom wall 209 by cutting and punching the bottom wall 209 of the base 201. As a more preferable configuration, the bottom wall 209 of the base 201 is cut and punched so that the pointed free ends 235 are distributed in a uniform manner on the circumference of the bottom surface of the bottom wall 209. It is made by. Therefore, the mounting means 233 normally has a chrysanthemum shape.

  As shown in FIGS. 21 to 30, the spring clip 300 according to the third embodiment of the present invention usually includes a base 301, a holding portion 303, and a spring 305. The base 301 is formed by performing a process of winding the sheet so that a protrusion 311 having a through hole 313 is provided along a longitudinal edge of the elongated sheet. Furthermore, the strength of the base 301 is increased by slightly bending the other longitudinal edge and the two end edges of the sheet downward. A central portion of the elongated sheet is formed on a bottom wall 309 extending horizontally as a whole. The presser portion 303 is formed by bending an elongated rod, and is generally rectangular, but has a shape with an open portion on the longer side surface. In order to clamp the document tightly, side portions at both ends of the presser portion 303 are bent to form upward protrusions 313. Further, of the two longer side surfaces, the center portion of the side surface opposite to the one having the open portion is also bent to form an upward projecting portion 315. As a result, two straight portions 317 that are not bent at all are formed on the longer side opposite to the open portion so as to sandwich the upward protruding portion 315.

  The base 301 and the pressing portion 303 are assembled together by a spring 305. The spring 305 is a spiral spring having a freely extending end 327. In the assembled state, the free end 319 of the presser portion 303 passes through the spring 305, and the end portion of the spring 305 is deformed to be engaged with the free end 319 of the presser portion 303. When the free end 319 of the presser portion 303 and the spring 305 that are engaged with each other are inserted into the through hole 313 of the protrusion 311 of the base 301, the free end 327 of each spring 305 is brought into contact with the lower surface of the base 301. Can do. The assembly of the spring clip 300 is thus completed. In use, the holding portion 303 is lifted away from the base 301 by grasping the protruding portion 315 of the holding portion 303 and lifting the holding portion 303 against the elastic force of the spring 305, so that paper is inserted or removed there. When the application of force to the protruding portion 315 of the presser portion 303 is stopped, the presser portion 303 is pressed firmly against the base 301 by the action of the spring 305, and the paper is held.

  At least one mounting means 333 is formed on the lower surface of the bottom wall 309 extending in the horizontal direction of the base 301 for the purpose of securely mounting the spring clip 300 to a hard plate or cover. Each mounting means 333 has at least one pointed free end 335 extending downward from the lower surface of the bottom wall 309. As a preferred configuration, two mounting means 333 are formed on the lower surface of the bottom wall 309 extending in the horizontal direction of the base 301. Each mounting means 333 is provided near one end of the bottom wall 309 and has at least one pointed free end 335. More preferably, each mounting means 333 has a plurality of pointed free ends 335 in a distributed manner on the circumference. FIG. 29 schematically shows a state in which a spring clip 300 according to the third embodiment of the present invention is attached to a hard plate 137. 30 is a cross-sectional view taken along line BB in FIG. The pointed free end 335 may be slightly inclined outward. Then, since the pointed free end 335 is inclined outward when it is held on a hard plate 137 or the like, and further spreads by the action of an external force, the spring clip has a hard plate 137 or the like as shown in FIG. It is securely attached. In order to simplify the processing procedure, the sharp free end 335 is formed in an integrated form on the lower surface of the bottom wall 309 by cutting and punching the bottom wall 309 of the base 301. In a more preferable configuration, the bottom wall 309 of the base 301 is cut and punched so that the sharp free ends 335 are uniformly distributed on the circumference of the bottom surface of the bottom wall 309. Made with. Therefore, the mounting means 333 normally has a chrysanthemum shape. Considering the fact that the peripheral edge of the base 301 is slightly bent downward, and therefore the bottom wall 309 is located on a surface slightly protruding from the peripheral edge, the bottom wall 309 corresponds to the mounting means 333. When the concave portion 337 is formed by punching at the position where the concave portion 337 is formed, the bottom surface of the concave portion 337 is substantially flush with the bottom surface of the peripheral edge of the base 301. The sharp free end 335 can also be formed in an integrated form with the lower surface of the concave portion 337 by cutting and punching the bottom wall 309 of the base 301.

  As can be seen from the preferred embodiment described above, the spring clip according to the present invention can be easily mounted on a rigid plate or cover without an additional mounting member such as a rivet. This is because mounting means with pointed free ends are formed on the lower side of the bottom wall for contact with hard plates, covers and the like. Further, the spring clip can be attached to a hard plate or cover in a sure form without loosening because its sharp free end is subjected to an external force and bends and deforms in the plate or cover.

  Although preferred embodiments of the present invention have been disclosed in a non-limiting manner and with reference to the accompanying drawings, the present invention does not deviate from the scope of the present invention as defined by the claims. It should be understood that various changes and modifications can be made and all fall within the scope of the invention.

It is a front view which shows the spring clip by the 1st Embodiment of this invention. FIG. 2 is a sectional end view taken along line AA in FIG. 1. It is a top view which shows the spring clip by the 1st Embodiment of this invention. It is a bottom view which shows the spring clip by the 1st Embodiment of this invention. It is a perspective view which shows the spring clip by the 1st Embodiment of this invention from the bottom face side. It is a disassembled perspective view which shows the spring clip by the 1st Embodiment of this invention. It is a perspective view which shows the base of the spring clip by the 1st Embodiment of this invention from the upper side. It is a perspective view which shows the base of the spring clip by the 1st Embodiment of this invention from the bottom face side. It is a figure which shows schematically the state by which the spring clip by the 1st Embodiment of this invention was mounted | worn with the hard plate. FIG. 10 is a cross-sectional view taken along line BB in FIG. 9. It is a front view which shows the spring clip by the 2nd Embodiment of this invention. It is an end elevation which shows the spring clip by the 2nd Embodiment of this invention. It is a top view which shows the spring clip by the 2nd Embodiment of this invention. It is a bottom view which shows the spring clip by the 2nd Embodiment of this invention. It is a perspective view which shows the spring clip by the 2nd Embodiment of this invention from the bottom face side. It is a disassembled perspective view which shows the spring clip by the 2nd Embodiment of this invention. It is a perspective view which shows the base of the spring clip by the 2nd Embodiment of this invention from the upper side. It is a perspective view which shows the base of the spring clip by the 2nd Embodiment of this invention from the bottom face side. It is a figure which shows schematically the state by which the spring clip by the 2nd Embodiment of this invention was mounted | worn with the hard plate. FIG. 20 is a cross-sectional view taken along line BB in FIG. 19. It is a front view which shows the spring clip by the 3rd Embodiment of this invention. It is an end elevation which shows the spring clip by the 3rd Embodiment of this invention. It is a top view which shows the spring clip by the 3rd Embodiment of this invention. It is a bottom view which shows the spring clip by the 3rd Embodiment of this invention. It is a perspective view which shows the spring clip by the 3rd Embodiment of this invention from the bottom face side. It is a disassembled perspective view which shows the spring clip by the 3rd Embodiment of this invention. It is a perspective view which shows the base of the spring clip by the 3rd Embodiment of this invention from the upper side. It is a perspective view which shows the base of the spring clip by the 3rd Embodiment of this invention from the bottom face side. It is a figure which shows roughly the state with which the spring clip by the 3rd Embodiment of this invention was mounted | worn with the hard plate. It is sectional drawing along line BB of FIG.

Claims (19)

A spring clip having a base and a presser part,
The base and the presser part are movable and assembled together by a spring, the presser part is strongly pressed against the base by the action of the spring, and the presser part can be moved away from the base,
One or more mounting means are provided on the bottom surface of the bottom wall extending in the horizontal direction of the base, and each mounting means has one or more pointed free ends extending downward from the bottom surface of the bottom wall. Spring clip. Two mounting means are provided on the bottom wall extending in the horizontal direction of the base, and each mounting means is positioned near one of the two ends of the bottom wall,
The spring clip according to claim 1. The mounting means has a plurality of pointed free ends in a distributed manner on the circumference;
The spring clip according to claim 1. The pointed free end is tilted outward,
The spring clip according to claim 1. The pointed free end is formed in an integrated form on the bottom surface of the bottom wall by cutting and punching the bottom wall of the base,
The spring clip according to claim 1. The sharp free ends are in a state of being uniformly distributed on the circumference on the lower surface of the bottom wall by cutting and punching the bottom wall of the base,
The spring clip according to claim 1. The base is provided with two or more protrusions that are wound and provided with through holes, and the presser part is provided with two or more protrusions that are wound and provided with through holes,
The elongated rod is passed through the base through hole, the presser part through hole, and the spring, and the two free ends of the spring are in contact with the outer side of the base and the upper side of the presser part, respectively.
The spring clip according to claim 1. The base has an upstanding side wall and a horizontally extending bottom wall, the protrusion of the base being formed at the upper edge of the side wall of the base;
The spring clip according to claim 7. The presser part is bent and arc-shaped,
The spring clip according to claim 7. The presser handle that extends outward and upward is provided at the center of the longitudinal inner edge of the presser part that engages with the base, and the protrusion of the presser part is formed on both sides of the presser handle,
The spring clip according to claim 7. The longitudinal outer edge of the presser part is formed as a serrated outer edge;
The spring clip according to claim 7. A recessed portion is formed on each of the outside of the side wall of the base and the upper side of the holding portion, and accommodates the two free ends of the spring;
The spring clip according to claim 7. The concave portion is formed by punching on the presser portion and the side wall of the base,
The spring clip according to claim 12. The spring clip further has a handle, the base has an upstanding side wall and a horizontally extending bottom wall, the handle has a horizontal top wall and a downwardly bent side wall,
A protrusion is provided on the side wall of the handle, and an opening for accommodating the protrusion is formed at a position corresponding to the protrusion on the side wall of the base,
The base, the presser part and the handle are assembled together in a movable state by a spring, and the handle is mounted inside the side wall of the base so as to rotate around a pivot shaft that supports the spring.
By locking the protrusion on the side wall of the handle to the opening on the side wall of the base, the presser part can be pressed firmly against the base, or the presser part can be released from the opening and moved away from the base. Is possible,
The spring clip according to claim 1, wherein: A protruding wall bent upward is formed on the bottom wall of the base, the pivot shaft is supported by the side wall and the protruding wall of the base,
The spring is supported by one of the pivot shafts, one end of the spring engages with the inside of the handle, and the other end protruding outward engages with the presser part.
The free ends of the other pivot shafts are also attached to the presser part, and the presser part thus moves on or away from the base as the handle rotates,
The spring clip according to claim 14. The base is provided with a protrusion which is wound along its one longitudinal edge and is shaped with a through hole, and the holding part is formed into a rectangular shape with an open part by bending an elongated rod. Formed by processing, one end of the spring is deformed and closely engages with the free end of the presser part,
The free end of the presser part that engages with each other and the spring are each inserted into the protrusion of the base, and the free end of each spring is in contact with the base,
The spring clip according to claim 1. Side portions at both ends of the presser portion are bent to form an upward protrusion, and a central portion on the side opposite to the open portion is also bent to form an upward protrusion. Two straight parts with no bends, with an upward protrusion opposite the open part,
The spring clip according to claim 16. The other longitudinal side surface and both side surfaces of the base are bent downward to increase the strength of the base.
The spring clip according to claim 16. The concave portion is formed by punching the bottom wall at a position corresponding to the mounting means. The bottom surface of the concave portion is flush with the bottom surface of the peripheral portion of the side surface of the base, and the sharp free end has a concave shape. By cutting and punching the part, it is formed in a form integrated with the lower surface of the concave part,
The spring clip according to claim 18.

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