JP5735297B2 - Snap lock - Google Patents

Description

  The present invention relates to a snap lock used for fixing a lid of a casing such as a trunk.

  This type of snap lock utilizes the principle of lever, and basically includes a snap lock main body and a base for mounting the snap lock main body to an attachment object such as a housing. Of these, the snap lock main body includes a handle that is rotated by a finger, and a hook lever that has one end rotatably provided on the handle and has a hook at the other end. The pedestal is provided with a support piece for pivotally attaching one end of the handle (see, for example, Patent Document 1).

  By the way, when this kind of snap lock is used for, for example, a lid of a trunk of a large construction machine, a large strength is required. Therefore, the handle, the lever for latching, and the base of the snap lock main body are enlarged and large. Strength is also required.

  FIG. 13 and FIG. 14 show an example of this type of snap lock. First, in FIG. 13, the snap lock 1 includes a snap lock main body 2 and a pedestal 3. Of these, the snap lock main body 2 includes a metal handle 4 and a hooking lever 5 in this case. One end of the hooking lever 5 is rotatably attached to the handle 4 by a pin 5a. Further, a hooking portion 5 b is provided at the other end of the hooking lever 5. The hook 5b is urged toward the handle 4 by a spring member (not shown).

  On the other hand, as shown in FIG. 14, the base 3 is configured by combining a first base member 6 made of a metal plate and a second base member 7 also made of a metal plate. Among these, the first base member 6 is a pair of base portions 6b, 6b each having a flat plate shape and having a mounting hole 6a, and a pair of opposing support piece portions 6c formed rising from the pair of base portions 6b. 6c and a connecting piece portion 6d obtained by connecting the pair of support piece portions 6c and 6c at the side portions, and a support hole 6e is formed in the vicinity of the distal end portions of the pair of support piece portions 6c and 6c. ing. The second base member 7 has a pair of base portions 7b each having a stepped flat plate shape and having mounting holes 7a, and a handle receiving portion 7c provided integrally between the pair of base portions 7b and 7b. doing. The handle receiving portion 7c includes a pair of rising pieces 7d that protrude in the same direction as the protruding directions of the pair of support pieces 6c and 6c and face each other, and a connecting piece that connects the tip portions of the pair of rising pieces 7d. It has the part 7e integrally, and has comprised the U shape which the base end part side of the rising piece part 7d opened as a whole. An engaging hole 7f is formed in the connecting piece 7e.

  Then, in a state where a part of each base part 6b of the first base member 6 and a part of each base part 7b of the second base member 7 are overlapped with each other with the respective mounting holes 6a, 7a being matched. The base 3 is formed by joining them (for example, the welding part 8 shown by x mark) by spot welding.

  In such a configuration, the snap lock main body 2 and the pedestal 3 are assembled as follows. That is, one end portion of the handle 4 in the snap lock main body 2 is inserted between the pair of support piece portions 6c and 6c in the base 3, and one end portion of the handle 4 is inserted through the support shaft 9 inserted through the support hole 6e. By attaching so that rotation is possible, the snap lock main body 2 will be in the state attached to the base 3.

  The snap lock 1 having such a configuration is attached to the housing by fixing the pedestal 3 to an attachment object (not shown), for example, with a bolt (not shown) inserted through the mounting holes 6a and 7a of the pedestal 3. Then, the handle 4 is rotated so that the hooking portion 5b of the hooking lever 5 is hooked on the hooked portion provided on the lid of the casing (not shown), and the handle 4 is rotated toward the handle receiving portion 7c. By moving the lid, the lid is held in a closed state.

JP 2001-241250 A

  In the above-described conventional configuration, the pedestal 3 produces the first base member 6 having the pair of support pieces 6c and 6c and the second base member 7 having the handle receiving portion 7c, and these are welded. It was necessary to join and configure as one part. For this reason, the number of parts is large, and a welding process and a welding jig for joining are necessary, resulting in a problem that costs increase.

  Therefore, an object of the present invention is to provide a snap lock that can reduce the cost.

In order to achieve the above object, the present invention includes a pedestal formed of a metal plate, a handle having one end rotatably attached to the pedestal, and one end rotatably attached to the handle. In a snap lock comprising a hook lever with a hook at the end,
The pedestal is
A pair of base portions having mounting holes for mounting to the mounting object;
Each of the pair of base portions is bent so as to be spaced apart from each other so as to be opposed to each other, and has a support hole in the vicinity of each tip portion, and a support shaft inserted through the support hole. A pair of support pieces for rotatably supporting one end of the handle via
A pair of rising pieces that are provided between the pair of base portions and are located in a portion corresponding to the middle portion in the longitudinal direction of the handle so as to protrude in the same direction as the protruding direction of the pair of support pieces, and face each other. And a connecting piece part that connects the distal ends of the pair of rising pieces are integrally formed to have a U-shape with the base end side of the rising piece open as a whole. A handle receiving portion for receiving a middle portion of the handle in the longitudinal direction;
The pair of base portions are arranged in two locations outside the pair of support piece portions and the handle receiving portion,
The pedestal is formed by integrally forming the base portion, the pair of support pieces, and the handle receiving portion by bending a single metal plate.

  According to the present invention, the pedestal can integrally form the pair of base portions, the pair of support pieces, and the handle receiving portion by bending a single metal plate. Compared to the case where the support piece part side and the handle receiving part side are separately formed and joined together by welding or the like, the number of parts can be reduced, and the joining process such as welding can be omitted. Reduction can be achieved.

1 is an exploded perspective view showing a first embodiment of the present invention. Perspective view from above in the assembled state Perspective view from the back side in the assembled state It shows an assembled state, (a) is a front view, (b) is a plan view, and (c) is a right side view. Longitudinal front view in the assembled state It shows a pedestal. (A) is a front view, (b) is a plan view, and (c) is a right side view. Plan view of pedestal shown in unfolded state FIG. 1 equivalent diagram showing a second embodiment of the present invention Front view in disassembled state It shows an assembled state, (a) is a front view, (b) is a plan view, (c) is a right side view, and (d) is a left side view. 6 equivalent diagram 7 equivalent diagram The perspective view of the assembly state which shows a prior art example Perspective view of pedestal

(First embodiment)
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. The snap lock targeted by the present embodiment is used for, for example, a lid closure of a housing in a construction machine, but of course can be used for other purposes.

  First, in FIG. 1 to FIG. 4, the snap lock 11 includes a pedestal 12 formed of a metal plate and a snap lock main body 13. The snap lock main body 13 includes a metal handle 14 extending in one direction and a hooking lever 15. A support shaft 16 is attached to one end portion 14a of the handle 14 so as to be rotatably attached to the pedestal 12. A structure for attaching the handle 14 to the base 12 will be described later.

  In the handle 14, a cylinder lock 17 constituting a locking means is provided at an intermediate portion 14b in the longitudinal direction. The cylinder lock 17 is provided with a key rotor 18 having a key insertion hole 18 a so as to be rotatable, and a lock plate 19 (see FIGS. 3 and 5) constituting engagement means is attached to the tip of the key rotor 18. It is worn. The lock plate 19 is formed in an oval shape that is long in one direction. The key rotor 18 can be rotated by a key (not shown) inserted into the key insertion hole 18a. In the handle 14, an arm portion 20 that protrudes toward the base 12 is integrally provided between the one end portion 14 a of the handle 14 and the cylinder lock 17. The other end 14c of the handle 14 is slightly curved toward the base 12 (downward in FIG. 1).

  The hooking lever 15 includes a lever body 22 made of a metal plate having a U-shape that is long in the same direction as the handle 14, and a hook member 23 having an annular hooking portion 23a. In the lever main body 22, one end portion 22 a opened on the handle 14 side is rotatably attached to the arm portion 20 of the handle 14 by a pin 24. The hook member 23 has a rod-like portion 23b (see FIGS. 4 and 5) on the opposite side to the hooking portion 23a, and the rod-like portion 23b moves in the longitudinal direction to the other end portion 22b of the lever body 22. It is inserted in the direction (see FIG. 5). The hook portion 23 a is disposed outside the other end portion 22 b of the lever main body 22. A spring member 25 made of a compression coil spring is provided around the rod-shaped portion 23b, and a spring receiving plate 26 is attached to the tip of the rod-shaped portion 23b by a pin 27. The spring member 25 is disposed between the plate 26 and the other end 22b of the lever main body 22 while being positioned around the rod-like portion 23b, and biases the hook member 23 toward the handle 14 side.

  Next, the pedestal 12 will be described with reference to FIGS. The pedestal 12 is formed by bending a single metal plate. The pedestal 12 has a pair of base portions 30 and 30. Each base portion 30 has a mounting hole 31. Each attachment hole 31 is a long hole that is long in the alignment direction. A pair of support piece portions 32 are formed on the pair of base portions 30 so as to face each other. The pair of support piece portions 32 are formed so that the respective front end portions are bent in a direction away from each other and rise. Circular support holes 32 a and 32 b are formed in the vicinity of the tip of each support piece 32. The pair of support piece portions 32 are portions that rotatably support the one end portion 14a of the handle 14 via the support shaft 16 inserted into the support holes 32a and 32b.

  In the pedestal 12, a handle receiving portion 33 is provided integrally with the base portion 30 between the pair of base portions 30, 30 so as to be positioned next to the pair of support piece portions 32. The handle receiving portion 33 is provided at a position corresponding to the intermediate portion 14 b of the handle 14 so as to protrude in the same direction as the protruding direction of the support piece portion 32. Specifically, the handle receiving portion 33 integrally includes a pair of rising pieces 34 and 34 that face each other and a connecting piece 35 that connects the tip portions of the pair of rising pieces 34 and 34. As a whole, the rising piece 34 is formed in a U-shape with the base end side opened. An engagement hole 36 that constitutes an engagement portion is formed in the connection piece portion 35.

The engagement hole 36 has an oval shape through which the lock plate 19 can be inserted. In a state where the lock plate 19 is inserted into the engaging hole 36, with that the lock plate 19 is 90 ° rotated via the key rotor 18, adapted to be engaged with the peripheral edge of the engaging hole 36 ing. Therefore, the lock plate 19 is engaged with the engagement hole 36 in a detachable manner. In the connecting piece 35, a reinforcing bent piece 37 is integrally provided at the end opposite to the pair of supporting pieces 32.

  FIG. 7 shows a developed view of the base 12. In FIG. 7, portions corresponding to the respective portions of the pedestal 12 are given the same reference numerals as those in FIG. 6 and the like, and the folding lines of the respective portions are indicated by two-dot chain lines. In this case, as shown in FIG. 6A, the height dimension of the upper surface of the connecting piece part 35 in the handle receiving part 33 (height dimension from the back surface of the base part 30 of the handle receiving part 33) H1 is The height of the center of the support holes 32a and 32b in the support piece 32 (height from the back surface of the base 30) H2 is substantially the same (H1≈H2), and in this case, it is set to about 30 mm.

  In the snap lock 11 having such a configuration, the base 12 and the snap lock main body 13 are assembled as follows. That is, one end portion 14a of the handle 14 in the snap lock main body 13 is inserted between the pair of support piece portions 32 and 32 in the base 12, and the one end portion 14a of the handle 14 is inserted into the support holes 32a and 32b. By being attached via 16 via a pivotable movement, the snap lock main body 13 is attached to the base 12 (see FIGS. 2, 3 and 4).

  The snap lock 11 having such a configuration fixes the pedestal 12 to an attachment object, for example, a housing 39 of a construction machine (see a two-dot chain line in FIG. 5) with a bolt (not shown) inserted through the attachment hole 31 of the pedestal 12. By doing so, it is attached to the housing 39. Then, the handle 14 is rotated so that the hooking portion 23a of the hooking lever 15 is hooked on the hooked portion 40a provided on the lid 40 of the housing 39 (see the two-dot chain line in FIG. 5). By rotating the handle 14 to the handle receiving portion 33 side, the lid 40 is held in a closed state. At this time, the intermediate plate 14 b of the handle 14 is received by the connecting piece portion 35 of the handle receiving portion 33 while the lock plate 19 is inserted into the engaging hole 36 of the connecting piece portion 35. At this time, in order to hold the lid 40 in a closed state, in FIG. 5, a support shaft 16 (a connecting portion between the handle 14 and the pedestal 12) serving as a fulcrum, a hooking portion 23a serving as an action point, and a pulled portion. It is necessary that the pin 24 (the connection point between the handle 14 and the hooking lever 15) serving as a power point is located on the housing 39 side from the straight line connecting the engagement point with the hook 41.

  Then, by inserting a key (not shown) into the key insertion hole 18a of the key rotor 18 and rotating the key rotor 18 by 90 degrees with the key, the lock plate 19 is also rotated in the same direction, and the lock plate 19 is engaged. Engagement with the peripheral edge of the hole 36 results in a locked state. In this locked state, the closed state of the lid 40 cannot be opened unless it is opened using a key that matches the key insertion hole 18a.

According to the first embodiment described above, the following operational effects can be obtained.
First, the pedestal 12 can integrally form the pair of base portions 30 and 30, the pair of support piece portions 32 and 32, and the handle receiving portion 33 by bending a single metal plate. For example, the number of parts can be reduced and the joining process such as welding can be omitted as compared with the case where the pair of support piece parts and the handle receiving part side are separately formed and joined together by welding or the like. And cost reduction can be achieved.

  Further, the height dimension (height dimension from the back surface of the base part 30) H1 of the connection piece part 35 in the handle receiving part 33 is set to the height dimension (base of the support holes 32a and 32b in the support piece part 32). The height dimension H1 of the handle receiving portion 33 can be set higher than that of the conventional one by setting it to be substantially the same as the height dimension H2 from the back surface of the portion 30) (H1≈H2). This makes it easier to insert a finger between the other end portion 14c and the housing 39 as an attachment object when the finger is put on the other end portion 14c of the handle 14, and the operability of the handle 14 and thus the snap lock 11 It becomes possible to improve the operability.

  Further, the handle 14 is provided with a lock plate 19 that constitutes an engaging means, and the connection piece 35 in the handle receiving portion 33 is provided with an engagement hole 36 in which the lock plate 19 is detachably engaged. Therefore, the lock plate 19 and the engagement hole 36 can more reliably maintain the closed state of the lid 40. Note that the cylinder lock 17 and the lock plate 19 in the handle 14 and the engagement hole 36 on the handle receiving portion 33 side are not necessarily required, and may be provided as necessary.

(Second Embodiment)
Next, a second embodiment of the present invention will be described with reference to FIGS. In addition, the same code | symbol is attached | subjected to the part same as 1st Embodiment, description is abbreviate | omitted, and the mainly different part is demonstrated.

  The snap lock 41 includes a base 42 formed of a metal plate and a snap lock main body 43. Of these, the pedestal 42 is formed by bending a single metal plate, but differs from the pedestal 12 in the following points. That is, both the attachment holes 44 in the pair of base portions 30 and 30 are long holes that are long in a direction orthogonal to the arrangement direction. The rising dimension of the pair of support pieces 32 and 32 and the height dimension to the center of the support holes 32a and 32b are the same as in the first embodiment, but the interval dimension K2 between the pair of support pieces 32 and 32 is the same. (See FIG. 11B) is set to be larger than the interval dimension K1 of the first embodiment (see FIG. 6B) (K2> K1). Further, the height dimension of the pair of rising pieces 46, 46 in the handle receiving part 45, and consequently the height dimension H3 of the connection piece part 35 (see FIG. 11A) are used as the connection piece part 35 of the first embodiment. And a height dimension H2 at the center of the support holes 32a and 32b in the support piece 32 (H3 <H1, H2).

  In the snap lock main body 43, the support shaft 16 supported by the pair of support pieces 32, 32 is provided with a spacer 47 in order to fill a space corresponding to an increase in the interval dimension K2. The hook lever 48 is formed to be wider than the other end 49b side from the longitudinal intermediate portion of the lever main body 49 to the one end 49a side, and the one end 49a and the arm portion 20 of the handle 14 A spacer 50 is provided between the two.

Also in the second embodiment having such a configuration, it is possible to obtain basically the same effects as those in the first embodiment.
The present invention is not limited to the above-described embodiment, and can be implemented with appropriate modifications within a range not departing from the gist.

  In the drawings, 11 is a snap lock, 12 is a base, 13 is a snap lock main body, 14 is a handle, 14a is one end, 14b is an intermediate portion, 14c is the other end, 15 is a hook lever, 16 is a support shaft, 17 is a cylinder lock (locking means), 19 is a key rotor (engaging means), 22 is a lever body, 23a is a hooking part, 25 is a spring member, 30 is a base part, 31 is a mounting hole, 32 is a supporting piece part, 32a and 32b are support holes, 33 is a handle receiving part, 34 is a rising piece part, 35 is a connecting piece part, 36 is an engagement hole (engagement part), 39 is a housing (attachment object), 40 is a lid, Reference numeral 41 denotes a snap lock, 42 denotes a base, 43 denotes a snap lock main body, 44 denotes a mounting hole, 45 denotes a handle receiving portion, 46 denotes a rising piece portion, and 48 denotes a hooking lever.

Claims (3)

A pedestal formed of a metal plate, a handle having one end rotatably attached to the pedestal, and a hooking lever having one end rotatably attached to the handle and having a hook at the other end In a snap lock comprising
The pedestal is
A pair of base portions having mounting holes for mounting to the mounting object;
Each of the pair of base portions is bent so as to be spaced apart from each other so as to be opposed to each other, and has a support hole in the vicinity of each tip portion, and a support shaft inserted through the support hole. A pair of support pieces for rotatably supporting one end of the handle via
A pair of rising pieces that are provided between the pair of base portions and are located in a portion corresponding to the middle portion in the longitudinal direction of the handle so as to protrude in the same direction as the protruding direction of the pair of support pieces, and face each other. And a connecting piece part that connects the distal ends of the pair of rising pieces are integrally formed to have a U-shape with the base end side of the rising piece open as a whole. A handle receiving portion for receiving a middle portion of the handle in the longitudinal direction;
The pair of base portions are arranged in two locations outside the pair of support piece portions and the handle receiving portion,
The pedestal is a snap lock wherein the pair of base portions, the pair of support pieces, and the handle receiving portion are integrally formed by bending a single metal plate.   The height dimension of the said connection piece part in the said handle | steering-piece receiving part was set so that it might become substantially the same as the height dimension of the center of the said support hole in the said pair of support piece part. Clicking tablets.   The engaging means is provided on the handle, and the connecting piece part in the handle receiving part is provided with an engaging part for releasably engaging the engaging means. 3. A snapper tablet according to 1 or 2.

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