JP2005098007A - Opening/closing handle lock device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an opening/closing handle lock device capable of providing excellent opening/closing handle locking or releasing operability while capable of eliminating inconveniences in the conventional lock device, having less number of parts, having excellent durability with simple structure, and usable as a part usable for both right and left side uses in common. <P>SOLUTION: In the conventional lock device having a bracket 1 fixed to a door and a holder 3 rotatably pivoted on the bracket 1, a rotating shaft 2 in the bracket 1 is formed in a roughly oval shape in cross section in which the right and left side wall surfaces thereof form flat surfaces. A bearing hole 31 in the holder 3 is formed in a groove hole of roughly trifurcate shape in plan view. The diameter of the center hole of the trifurcate groove hole is made equal to or more than the maximum diameter of the rotating shaft, and each branch width of the trifurcate groove is made equal to or more than the width across flats of the rotating shaft and equal to or less than the maximum diameter. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  TECHNICAL FIELD The present invention relates to a locking device for an opening / closing handle in a door that opens and closes in a double door mainly provided in a cargo box or a container of a lorry, and more specifically, for holding the opening / closing handle attached to the surface of the door. The present invention relates to an improvement of a lock device that functions as a metal fitting.

  In a truck such as a cold storage car, a freezer car, and an aluminum van, as shown in FIG. 7, two doors D1 and D2 that normally open and close are provided on the rear side of the packing box N. In order to protect the cargo and prevent accidents due to inadvertent opening of the doors, the open / close doors are provided with a total of four keepers K1, K2, K3, Opening is restricted by engaging K4 with cams C1, C2, C3, and C4 extending from the upper and lower ends of the two lock rods L1 and L2, respectively. From the two lock rods L1 and L2 that can be engaged and disengaged by rotating operation, substantially horizontal opening and closing handles H1 and H2 are extended in the left and right outer directions, respectively. Disengagement and disengagement between the keepers K1 ... K4 and the cams C1 ... C4 is achieved by moving them away from or close to the doors D1, D2, while the open / close handles H1, H2 are mounted on the surfaces of the doors D1, D2. It was configured so that it could be held and fixed by the receiving brackets R1 and R2.

  For example, an open / close handle locking device disclosed as a prior art in Japanese Utility Model Publication No. 3-32224 (Patent Document 1) includes a bracket that is mounted and fixed on the surface of an open / close door and receives the open / close handle as a receiving metal fitting, It is composed of a holder that is pivotally mounted via an attachment shaft so as to be located at the upper part, and under normal conditions, a holder that hangs down by its own weight and covers the opening and closing handle is wrapped around By forcibly turning it upward, the opening / closing handle could be pulled out from the door through a gap formed between the holder and the bracket.

  As described above, in order to operate the opening / closing handle in the conventional locking device, it is necessary to perform a rotating operation for retracting the holder every time to insert / remove the opening / closing handle from the gap between the holder and the bracket. There was an inconvenience that had to be operated at the same time. Therefore, in the lock device according to the registered utility model, opening and closing with one hand is provided by providing a holder support on the upper part of the bracket while providing a handle-shaped handle pressing portion that rotates in synchronization with the holder inside the holder. The handle can be locked and unlocked in the holder and bracket only by operating the handle.

  That is, in this locking device, when the opening / closing handle is lifted while being pressed against the door, the holder rotates together with the handle pressing portion in contact with the upper surface of the opening / closing handle. When the opening / closing handle is pulled to the front with the holder rotated to the horizontal position, the holder supporter tilts forward to support the holder, so that the clearance between the holder and the bracket is maintained and the opening / closing handle is detached from the bracket. It becomes possible. On the other hand, to store the opening / closing handle in the locking device, pressing the opening / closing handle against the holder support returns the holder support so that the holder can be rotated downward. At the same time, the holder hangs down by its own weight, and the locked state is realized by covering the bracket so as to wrap the opening / closing handle.

Japanese Utility Model Publication 3-32224 (FIG. 9)

  In addition, although it is necessary to operate the holder and the opening / closing handle in order, a conventional locking device that can perform both the locking / unlocking operation of the opening / closing handle with only one hand is shown in FIGS. Is exemplified. Each of these locking devices R1A, R1B is provided with a handle receiving portion B1 in the middle or lower part, bracket B attached to the surface of the door D1, and pivotally attached to the upper part of the bracket B and suspended by its own weight. In the state, it is composed of a holder O that covers the bracket B so as to wrap the opening / closing handle H1, and is an improvement of the locking device according to the prior art of Patent Document 1.

  More specifically, in the conventional locking device R1A shown in FIGS. 8A and 8B, a stopper S is provided near the upper end of the bracket B so that the rotated holder O can be maintained in a substantially inverted state. Thus, the holder O is locked to the stopper S when the opening / closing handle H1 is operated. Further, in the conventional locking device R1B shown in FIGS. 9 (a), (b) and (c), a rotary shaft J having an oblong shape in plan view in which parallel flat surfaces are formed as if the left and right side wall surfaces are scraped off is used. At the same time, the bearing hole O1 of the holder is a long hole in the longitudinal direction, and the central portion O11 of the long hole is a groove width equal to or larger than the maximum diameter of the rotating shaft, while its upper and lower O12, O13 are two of the rotating shaft. By setting the groove width to be narrower than the surface width, the rotated holder O can be maintained in a suspended state (FIG. 9B) or an inverted state (FIG. 9C). .

  According to the locking device according to the registered utility model, it is true that a series of operations from unlocking the opening / closing handle to opening / closing the door and then locking the opening / closing handle were all grasped with one hand. Although it is excellent in that it can be performed without changing it as it is, there are many parts, and there is a question of durability due to the movable part called the holder support. Since both the locking device and the conventional locking device shown in FIG. 8 have different handle pressing portions and stopper placement directions / positions depending on the extending direction of the opening / closing handle, the left and right 2 Each of the doors has to be formed as a right-handed or left-handed part so that the manufacturing cost is increased and the parts stock corresponding to both the left and right parts is complicated.

  In this respect, the conventional locking device shown in FIG. 9 has a simple structure, a small number of members, and can be used as a left / right part without being affected by the extending direction of the opening / closing handle. In order to rotate the shaft, the pivot shaft in the form of a plan view has to be positioned almost exactly in the center of the bearing hole of the holder, and if it goes too far up and down the narrow groove width Since it becomes impossible to rotate, positioning at the time of the rotation operation is difficult, and a new inconvenience that the door opening / closing workability is impaired is caused.

  The present invention eliminates the disadvantages of the conventional locking device, has a small number of parts, has a simple structure and is excellent in durability, and can be used as a left / right combined part. An object of the present invention is to provide an excellent locking device for an opening / closing handle.

  In order to solve the desired problem, the locking device for the opening / closing handle according to the present invention is used as a receiving metal fitting for the opening / closing handle of the door, and is pivoted so as to protrude on the surface side above the handle receiving portion opened upward. A bracket having a shaft and mounted and fixed on the back side; and a bearing hole that is fitted and inserted into the rotating shaft at the upper portion, and in a suspended state, the lower portion covers the handle receiving portion with respect to the bracket. In a conventional locking device composed of a holder pivotally mounted in a pivotable manner, the pivot shaft of the bracket is formed in a substantially oval shape in plan view with its left and right side walls forming a flat surface, while a bearing hole in the holder Is formed in a substantially trifurcated groove hole in plan view, the diameter of the center hole of the trifurcated groove hole is not less than the maximum diameter of the rotating shaft, and the branch groove width of the trifurcated groove is It was less than the maximum diameter in terms width or more.

  Therefore, as long as the pivot shaft of the bracket is positioned in the center hole of the bearing hole in the holder, the holder can freely pivot around the pivot shaft, while the pivot shaft of the bracket can rotate the bearing hole in the holder. In the case of sliding insertion into any one of the three branch groove holes that constitute, the rotation operation of the holder is restricted, and the holder is held in that position. As a result of forming the bearing hole in the holder into a substantially trifurcated groove hole in plan view, the direction of each branch groove hole does not always coincide, and a line extending from one branch groove hole to another branch groove hole Since it is not always a straight line, the operation of positioning the pivot shaft of the bracket moving in the three branch grooves and the central hole at a required position is extremely easy.

  Further, according to the present invention, the direction of drilling each branch groove in the trifurcated groove of the locking device for the opening / closing handle is set to an angle of 120 ° obliquely downward to the left and right with respect to the vertical direction toward the upper end of the holder. Evenly arranged to make.

  For example, the locking device that is mounted and fixed to the left and right door surfaces that open and close in double doors is configured as a left / right combined part as in the above invention, and the holder rotated to release the lock is in an obliquely inverted state When the holders are mounted on the left door and the device attached to the right door is at different angles, it is unavoidable for the operator to feel uncomfortable and the appearance is unclear. This is not desirable because it is balanced. However, such inconvenience can be avoided if the branch groove holes in the trifurcated groove hole of the holder are arranged in a well-balanced manner at equal intervals so as to form a radial shape centered on the center hole.

  In order to further enhance the operational feeling, it is preferable to set the direction in which each branch groove hole is formed in the trifurcated groove hole so that the operation of rotating the suspended holder to the obliquely inverted state can be performed more smoothly. Specifically, the direction of drilling each branch slot in the trifurcated slot of the locking device for the opening / closing handle is 90 ° to 120 ° greater than 90 ° to the left and right with respect to the vertical direction toward the upper end of the holder. It arrange | positions as a left-right symmetric form so that a small angle may be made. Since the angle between the two branch groove holes facing left and right is wider than 120 °, a large circumferential length between both branch groove holes in the bearing hole can be ensured. The moving shaft is less likely to fall into the branch groove hole.

  The opening / closing handle locking device according to the present invention comprises a bracket attached to a door or the like, a holder pivotally mounted on the surface side of the bracket, and only three members of the pivot shaft. Therefore, the number of parts can be reduced, and since it has a simple structure without a special movable part, it has sufficient durability for a cargo compartment door or a container door.

  In addition, since the bearing hole in the holder is formed in a substantially trifurcated groove hole in plan view, the rotated holder can be held in either the right diagonally upward direction or the left diagonally upward position with respect to the bracket. Even if the opening / closing direction of the opening / closing handle, that is, the extending direction of the opening / closing handle is the left or right direction, the left / right combined part can be used.

  Then, in the bearing hole of the holder formed in the substantially trifurcated groove hole in plan view, the rotation axis of the bracket is positioned at any one of the three branch groove holes and the center hole, or the rotation axis is set in the center hole. Since the holder operation such as rotating the holder while it is positioned is extremely easy, the lock operation and the release operation of the holder can be performed quickly and reliably with one hand, thereby improving workability.

  Furthermore, when the direction of drilling each branch slot in the trifurcated slot is set to three equal directions, the tilt angle of the holder when unlocked when used as a left part and when used as a right part Since this is symmetrical, there is an advantage that it can be operated without a sense of incongruity. Furthermore, each branch groove hole located in two diagonally lower left and right directions is drilled as a left-right symmetrical shape so as to form an angle larger than 90 ° and smaller than 120 ° with respect to the vertical direction toward the upper end of the holder. In this case, when the holder is rotated, the time during which the lower edge of the rotating shaft is in contact with the circumferential portion of the center hole between both the branch groove holes becomes long, and smooth until the tilted inverted state is reached. It will be possible to rotate.

  Hereinafter, the present invention will be described in detail with reference to the drawings. 1 is a front view showing an example of an opening / closing handle lock device according to the present invention, FIG. 2 is a sectional view taken along line XX in FIG. 1, FIG. 3 is a front view of each component in the lock device, and FIG. FIG. 5 is an enlarged front view of the bearing hole, and FIG. 6 is a front view of a state in which the holder in the locking device is inverted obliquely upward to the right. As shown in these figures, an opening / closing handle lock device according to the present invention includes a bracket 1 whose back side is attached and fixed to a door or the like as a base, a rotating shaft 2 protruding from the surface side of the bracket 1, The holder 3 is composed of three members having a bearing hole that is fitted into the rotating shaft 2.

  As shown in FIGS. 2 and 3 (a), the bracket 1 of this example is made of a single steel plate that is long in the vertical direction, and the lower half of the bracket 1 is cut into a substantially U shape. The handle receiving portion 11 opened upward is formed by bending the surface twice on the surface side. A shaft hole 12 into which a later-described substantially cylindrical rotation shaft, which will be described later, is inserted is formed near the upper end of the bracket 1, while the bracket 1 is attached to the door surface or the like near the lower end of the bracket 1. A fixing hole 13 for fixing and mounting is formed, and as shown in FIG. 2, a bolt 4, a screw, a rivet or the like 4 inserted into the shaft hole 12 and the fixing hole 13, The bracket 1 is mounted and fixed so that the back side thereof is in close contact with the door D.

  As shown in FIGS. 2 and 3 (b), the holder 3 of this example is also made of a single steel plate that is long in the vertical direction, and has a bearing hole 31 having a substantially trifurcated groove in plan view at the top. On the other hand, the position of the lower half is bent to the surface side, and is formed as an operation portion 33 that is stepped from the close rotation portion 32 having the bearing hole 31 when viewed from the side. The close rotation portion 32 of the holder 3 rotates almost closely to the surface of the bracket 1. When the holder 3 is in the suspended state, the lower portion of the holder 3, that is, the operation portion 33 is in the bracket 1. The handle receiving portion 11 is configured to be covered.

  As shown in FIGS. 3 (c) and 4, the pivot shaft 2 for pivotally mounting the holder 3 on the bracket 1 is flat as if both left and right side walls were scraped off. It is a plan view substantially oval shape that forms surfaces 21 and 22, and a through hole 23 is provided in the center for inserting a bolt 1 or the like 4 for mounting and fixing the bracket 1. Such a rotating shaft 2 is inserted into the shaft hole 12 in the bracket 1 and the bearing hole 31 in the holder 3 and is then attached to the door D or the like using a fastener 4 such as a bolt as shown in FIG. Mounted and fixed.

  As shown in FIG. 5, the bearing hole 31 formed in the upper portion of the holder 3 includes a center hole 314 and branch groove holes 311, 312, and 313 extending in three directions around the center hole 314. In plan view, it is formed in a substantially trifurcated slot. In the bearing hole 31 of the present example, two drilling directions of the three branch groove holes 311, 312 and 313 are directed obliquely downward to the left and right with reference to the vertical branch groove hole 311 directed to the upper end portion of the holder 3. The branch groove holes 312 and 313 are equally arranged so as to form an angle of 120 °.

  Looking at the relationship between the rotating shaft 2 formed as described above and the bearing hole 31 inserted into the shaft, the diameter A ′ of the center hole 314 of the bearing hole 31 is larger than the maximum diameter A of the rotating shaft 2. On the other hand, the groove width B ′ of each of the branch groove holes 311, 312, and 313 in the bearing hole 31 is equal to or larger than the two-surface width B that is the distance (interval) between the flat surfaces 21 and 22 on the rotating shaft 2. The rotating shaft 2 is set to have a maximum diameter A or less.

  Therefore, when the rotating shaft 2 is at the position of the branch groove hole 311 in the bearing hole 31 of the holder 3, the holder 3 is in a suspended state so as to cover the bracket 1, but has an operation portion 33 in the holder 3. Thus, the holder 3 can be rotated by adjusting the rotation shaft 2 to the position of the center hole 314 in the bearing hole 31 while lifting the holder 3 slightly upward. The pivoted holder 3 is inverted by inserting the pivot shaft 2 into one of the following (adjacent) branch holes 312 and 313 when the holder 3 is tilted upside down. Will be maintained. In FIG. 1, the holder 3 that has been turned upside down diagonally to the left is shown in phantom, and FIG. 6 similarly shows the state in which the holder 3 is turned upside down toward the right side.

  As described above, the lock device for the opening / closing handle according to the present invention can rotate the holder 3 in either of the left and right directions and can maintain the inverted state. When the holder 3 is turned upside down as shown in FIG. 6, a sufficient space is secured between the bracket 1 and the holder 3, so that the holder 3 is accommodated in the handle receiving portion 11 of the bracket 1. Therefore, it is possible to unlock the open / close handle H by lifting the handle H while lifting it.

  On the other hand, as long as the rotating shaft 2 is fitted in the branch groove holes 312 and 313, the inverted state of the holder 3 is maintained. Therefore, when the opening / closing operation of the door D by the handle H is completed, the opening / closing handle H is again bracketed. 1 is inserted from between the holder 3 and accommodated in the handle receiving portion 11 of the bracket 1, and then the lower side of the bearing hole 31 in the holder 3 is pushed upward, the rotating shaft 2 is centered in the bearing hole 31. At the moment when it matches the position of the hole 314, the weight of the operation portion 33 of the holder 3 acts to rotate the holder 3 itself and return to the suspended state. The holder 3 in the suspended state is locked as a result of the rotation shaft 2 being fitted into the branch groove hole 311 in the bearing hole 31.

  FIG. 10 is a front view showing another example of the opening / closing handle lock device according to the present invention, FIG. 11 is a sectional view taken along line XX in FIG. 10, and FIGS. It is a side view. The opening / closing handle lock device of the present example is fitted into and inserted into a bracket 1 whose rear side is mounted and fixed to a door or the like as a base, a rotating shaft 2 protruding from the surface side of the bracket 1, and the rotating shaft 2. Although it is the same as that of the previous example that it is comprised from the three members of the holder 3 which has a bearing hole, the specific shapes etc. of the handle | steering-wheel receiving part 11 in the bracket 1 and the holder 3 differ.

  That is, the bracket 1 of this example is cut upward by cutting the inner side of the lower half of one steel plate that is long in the vertical direction into a tongue-like shape, and bending the incised portion three times by 90 ° to the surface side. An open handle receiving part is formed. An oval shaft hole 12 into which a rotating shaft is inserted is formed near the upper end of the bracket 1, while the lower end of the bracket 1 is fixedly attached to the door surface of a cargo box or the like. A fixing hole 13 is formed. As shown in FIG. 11, the bracket 1 is firmly fixed to the door D on the back side of the bracket 1 by fitting a fastener 4 such as a bolt into the shaft hole 12 and the fixing hole 13.

  The holder 3 of this example is also formed by punching and bending a single steel plate. A bearing hole 31 having a substantially trifurcated groove in plan view is formed in the upper portion, while the lower quarter is gently bent twice on the surface side so that the tip portion is substantially horizontal. 33. In the holder of the previous example, the operation part 33 was formed in a slightly longer handle shape, but since this operation part 33 is bent and formed short, it is not operated by grasping with the palm of the hand as a handle. It can be operated lightly to press. The handle receiving portion 11 in the bracket 1 has a substantially horizontal tongue-shaped tip, and when the holder 3 is attached to the bracket 1 and suspended, as shown in FIG. Since the substantially horizontal operation portion 33 is horizontally opposed to the tip of the handle receiving portion 11 while maintaining a slight gap, each of the tip of the handle receiving portion 11 and the operation portion 33 of the holder 3 is continuous in the vertical direction. The corresponding key through holes 111 and 331 are respectively formed. Note that the vicinity of the bearing hole 31 in the upper portion of the holder 1 rotates as a close rotation portion 32 in a substantially close contact state with the surface of the bracket 1.

  FIG. 15 is a perspective view of the rotating shaft 2 of this example. The rotary shaft 2 of this example is the same as the rotary shaft 2 of the previous example in that it has a substantially oval shape in plan view with flat surfaces 21 and 22 such that the left and right side wall surfaces are cut off. The difference is that a disk-shaped collar 26 is provided. The rotating shaft 2 is inserted into the bracket 1 while passing through the shaft hole 12 in the bracket 1 and the bearing hole 31 in the holder 3 so that the first step 24 having a small diameter in the vertical direction is the shaft hole 12 in the bracket 1. The second stage 25, which is inserted into the upper part and has a slightly larger diameter in the vertical direction, serves as a rotation shaft, and the collar 26 prevents the holder 3 from falling off, so that the center hole 314 and each branch in the bearing hole 31 of the holder 3 are prevented. It will move to the slot 311, 312, 313 position.

  FIG. 16 is an enlarged front view of the bearing hole in the holder of this example. The holder of the previous example is that the center hole 314 is formed in a substantially trifurcated groove hole in plan view comprising a center hole 314 and branch groove holes 311, 312 and 313 extending radially in three directions around the center hole 314. 3, but the bearing hole 31 of this example is different in that the opening angle α of the two branch groove holes 312 and 313 located obliquely below the left and right is set to 140 °. . Therefore, in the holder 3 of this example, the direction in which each of the branch groove holes 312 and 313 is formed with respect to the vertical direction toward the upper end portion thereof is obliquely downward in the left and right directions at an angle β that is greater than 90 ° and less than 120 °. Thus, it will be arrange | positioned as a left-right symmetric shape. As a result, the circumferential portion of the bearing hole 31 (also the center hole 314) between the branch groove hole 312 and the branch groove hole 313 is longer than the portion of the holder 3 in the previous example. During the movement operation, the rotation shaft 2 can be smoothly rotated.

  This point will be described in more detail with reference to FIG. FIG. 17 (a) is a schematic diagram showing the relationship between the bearing hole 31 and the rotating shaft 2 in the holder 3 of the example shown in FIG. 1, and is shown by a solid line from the drooping position I shown by a broken line. A state in which the holder 3 is rotated by 60 ° counterclockwise to the inclined position II is shown. The rotating shaft 2 having a long oval shape in the vertical direction is completely fixed on the bracket 1. By rotating the holder 3, a bearing hole 31, that is, each branch groove hole is formed around the rotating shaft 2. 311, 312, 313 will move. At first, the holder 3 in the handle lock state is in the hanging position I, so that the rotating shaft 2 fitted in the branch groove hole 311 is detached from the branch groove hole 311 by lifting the holder 3 upward to be the center hole. Move to 314. As long as the rotation shaft 2 is positioned in the center hole 314, the holder 3 can be rotated.

  FIG. 17 (b) is a schematic diagram showing the relationship between the bearing hole 31 and the rotary shaft 2 in the holder 3 of the example shown in FIG. 10, which is also shown by the solid line from the drooping position I shown by the broken line. A state in which the holder 3 is rotated by 60 ° counterclockwise to the inclined position II is shown. As can be seen by comparing the two figures, in the state where both are rotated by 60 °, the lower edge and the lower right corner R of the rotating shaft 2 are already from the circumferential portion of the center hole 314 in FIG. As a result, it is easy to fit the pivot shaft 2 into the branch groove 313 positioned directly below, but the lower right corner portion R of the pivot shaft 2 is still in the center hole 314 in FIG. It is in a state of being caught by the circumferential portion and not in the branch groove hole 313. In either of FIGS. 17 (a) and 17 (b), the holder 3 can be further rotated to fit the rotating shaft 2 into the branch groove hole 312 so that the handle lock can be released. By ensuring as long as possible the circumferential portion of the center hole 314 where the arcuate portion of the rotating shaft 2 abuts or slidably contacts during the rotating operation of 3, the holder 3 can be smoothly rotated. It is.

  On the other hand, the two branch groove holes 312 and 313 are arranged so as to be continuous in a line, that is, the branch groove holes 312 and 313 are arranged in a substantially inverted T-shape that forms 90 ° with respect to the branch groove hole 311 in the vertical position. As a result, when the pivot shaft 2 serving as the handle lock release position is fitted into the branch groove hole 312, the pivot shaft 2 serving as the handle lock position is moved to the state fitted into the branch groove hole 311. This is not preferable because there is a drawback that the moving shaft 2 is inadvertently easily fitted into the branch groove hole 313.

  Therefore, in the handle lock position where the holder 3 is suspended directly below, the branch groove holes 312 and 313 located in two diagonally lower left and right directions are set to be larger than 90 ° and 120 ° with respect to the branch groove hole 311 in the vertical position. By drilling as a left-right symmetric shape so as to form a smaller angle, the circumferential portion of the center hole 314 between the two branch groove holes 312 and 313 is secured long, and as a result, the holder 3 can be smoothly rotated. Will be realized.

It is the front view which showed an example of the opening / closing handle lock apparatus which concerns on this invention. It is XX sectional drawing in FIG. It is the front view of each component in the lock device, and is the front view (a) of a bracket, the front view (b) of a holder, and the front view (c) of a rotating shaft. It is an enlarged front view of a rotating shaft. It is an enlarged front view of a bearing hole. It is a front view of the state in which the holder in the locking device was turned upside down diagonally right. It is the schematic perspective view which showed the rear opening / closing door vicinity of the common lorry. It is a front view which shows an example of the conventional locking device, and has each shown the locked state (a) and the lock release state (b). It is a front view which shows another example of the conventional locking device, and has each shown component structure (a), the locked state (b), and the lock release state (c). It is the front view which showed the other example of the opening / closing handle lock apparatus which concerns on this invention. It is XX sectional drawing in FIG. It is the front view (a) and side view (b) of the bracket in the locking device. It is the front view (a) and side view (b) of the holder in the locking device. It is the front view (a) and side view (b) of the rotating shaft in the locking device. It is the perspective view which showed the other example of the rotating shaft. FIG. 14 is an enlarged front view of a bearing hole in the holder shown in FIG. It is the schematic which showed the relationship between the bearing hole and rotating shaft when rotating a holder 60 degree counterclockwise, (a) in the opening-and-closing handle lock apparatus of the example of FIG. 1, and the example of FIG. (B) in the open / close handle lock device.

Explanation of symbols

1 Bracket 2 Rotating shaft 3 Holder 4 Fastener
11 Handle receiver
21, 22 Flat surface
31 Bearing hole
311, 312, 313
314 Center hole D, D1, D2 Door H, H1, H2 Open / close handle

Claims (3)

A bracket that is used as a metal fitting for a door opening / closing handle and has a pivot shaft projecting on the surface side above the handle receiving portion that is opened upward, and a bracket that is mounted and fixed on the back side, and the pivot shaft on the upper side. In a locking device that includes a bearing hole that is fitted into the holder and that is in a suspended state, a lower part of which is pivotally attached to the bracket so as to cover the handle receiving portion.
The pivot shaft of the bracket is formed in a substantially oval shape in plan view with its left and right side walls forming a flat surface, while the bearing hole in the holder is formed in a substantially trifurcated slot in plan view. An opening / closing handle lock device in which the diameter is not less than the maximum diameter of the pivot shaft and each branch groove width of the trifurcated slot is not less than the two-face width of the pivot shaft and not more than the maximum diameter. The branch groove holes in the trifurcated groove holes are evenly arranged so as to form an angle of 120 ° diagonally downward to the left and right with reference to the vertical direction toward the upper end of the holder. The opening / closing handle lock device according to claim 1. As a bilaterally symmetrical shape, the direction in which each branch groove hole in the trifurcated groove hole is inclined more than 90 ° and less than 120 ° diagonally downward to the left and right with respect to the vertical direction toward the upper end of the holder. 2. The open / close handle lock device according to claim 1, wherein the open / close handle lock device is provided.

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