JPH0835363A - Key - Google Patents

Abstract

PURPOSE:To enable an unlocking number to be set in an extremely simple manner. CONSTITUTION:An operation ring 8 is rotated as required with respect to a key hole ring 7 by an operator having purchased a key, and a position is determined, in which respective unlocking numbers corresponding to the respective rotation of the operation ring 8 fall on a line in the horizontal direction while the projected section 5e of an axial member 1 is set at respective positions corresponding to reference positions provided. A pin 13 is then pushed inwardly every rotation of the operation ring 8. Since the end section 13a at the inner side of the pin 13 is thereby pressed in one of the engaging grooves 7d of the key hole ring 7, the operation ring 8 is connected to the key hole ring 7. By this constitution, setting for the unlocking number of three figures is completed. As a key main body 3 is on the market in a state that it is assembled, the only thing that has to be done is to set the unlocking number as mentioned above, and its setting can be done in an extremely simple manner.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a key, and more particularly to a number-matching key suitable as a key for a bicycle.

[0002]

2. Description of the Related Art Conventionally, for example, as a key for a bicycle, a cord-like member made of a sturdy wire or the like, a key body provided at one end of the cord-like member, and a key body provided at the other end of the cord-like member are required. It is known to have an insert member that is sometimes connected to the key body. In such a conventional key, the key body is provided with three rings with numbers 0 to 9 on the outer periphery, and each ring is inserted into the key hole of the body and locked. When is rotated and a predetermined three-digit number is aligned on a horizontal straight line, the tablet is unlocked. In such a conventionally generally known key, the 3-digit unlocking number is already determined at the time of purchasing the key, and the key purchaser has to store the predetermined unlocking number, which is complicated. was there. In consideration of such circumstances, conventionally, there is also known a number-matching type key in which an arbitrary unlocking number can be set after purchasing the key (see FIG. 6). For such a key whose unlocking number can be set to an arbitrary number, the key purchaser disassembles the key body once and then shifts the relative fitting position in the circumferential direction of each operation ring to each keyhole ring. After setting the unlocking number, the three pairs of integrated keyhole ring and operating ring are sequentially fitted to the shaft member, and then the washer and the retainer as the retaining means are attached to the tip of the protruding shaft member. By installing it, the setting of the unlocking number and the assembly of the main body are completed.

[0003]

However, the above-mentioned key for which the unlocking number can be set has the advantage that the unlocking number can be set to an arbitrary number after the key is purchased, but on the other hand, the unlocking number can be set in the order described above. Since it is necessary to set and assemble the key body, there is a drawback that setting the unlocking number and assembling the key body are extremely complicated.

[0004]

[Means for Solving the Problems] In view of such circumstances,
According to a first aspect of the present invention, a cord-shaped member made of a sturdy wire or the like, a key body provided at one end of the cord-shaped member, and a key body provided at the other end of the cord-shaped member are connected to the key body when required. In a key provided with an insertion member, the key body, a shaft member having an axial groove formed in an outer peripheral portion, and a through hole for inserting the shaft member is formed in a central portion of an end surface extending in a radial direction, Also, a plurality of keyhole rings that are provided with engaging portions at circumferentially equidistant positions on the outer peripheral surface while forming cutout portions continuous from the through hole on the end surface, and radially at predetermined circumferential positions on the outer peripheral surface. A plurality of operation rings having through holes formed therein and rotatably fitted to the outer peripheral portion of each of the keyhole rings, and the outer ends of the operation rings fitted to the through holes of each of the operation rings. It is exposed to the outside of the through hole and is inserted toward each operation ring. And an inner end portion thereof is formed of a pin that is engaged with one of the engaging portions of each of the keyhole rings, and the insertion member is an insertion member that is inserted into an axial groove of the shaft member. Provided is a key having at least a portion and a retaining projection that is provided at a predetermined position in the longitudinal direction of the insertion portion so as to project by at least the same number as the keyhole ring and can pass only through a notch formed in an end surface of each keyhole ring. To do. Also,
According to a second aspect of the present invention, a cord-shaped member made of a sturdy wire or the like, a key body provided at one end of the cord-shaped member, and a key body provided at the other end of the cord-shaped member are connected to the key body when required. In a key provided with an insertion member, a first casing and a second casing in which the key body is integrally connected to each other, and a shaft member provided in the first casing and having an axial groove formed in an outer peripheral portion thereof. , A gear portion is formed at a predetermined axial position on the outer peripheral portion, a through hole is formed in the center portion of the end surface, and a cutout portion continuous from the through hole is formed on the end surface, so that the first casing is provided. A plurality of keyhole rings fitted in the outer peripheral portion of the shaft member in a line in the axial direction, a support shaft provided in the second casing, and a gear portion of the keyhole ring at predetermined positions on the outer peripheral portion. A gear is formed and the support shaft is aligned in a line in the axial direction. Constructed from the aforementioned keyhole ring the same number of operating ring rotatably fitted state, the first
When the casing and the second casing are integrally connected, the gear portion of the keyhole ring and the gear portion of the operating ring are configured to mesh with each other, and the insertion member is an axial groove of the shaft member. The present invention provides a key including an insertion portion to be inserted into a key and a retaining projection that is provided at predetermined intervals in the longitudinal direction of the insertion portion and that can pass through only the cutout portion of each keyhole ring. . Further, a third aspect of the present invention is to provide a cord-shaped member made of a sturdy wire or the like, a key body provided at one end of the cord-shaped member, and a key body provided at the other end of the cord-shaped member and connected to the key body when required. In the key provided with the insert member, the key body is provided in a casing to form a shaft member having an axial groove formed on an outer peripheral portion thereof, and a gear portion is formed at a predetermined axial position on the outer peripheral portion, and an end surface of the key member is formed. A through hole is formed in the central portion of the shaft, and a cutout portion continuous from the through hole is formed in the end face, and the shaft member is fitted in the outer peripheral portion of the shaft member located in the casing in a line in the axial direction. Multiple keyhole rings,
A first support shaft provided in the casing in parallel with the shaft member, and a gear portion formed at a predetermined position on the outer peripheral portion, and rotatably fitted to the outer peripheral portion of the first support shaft in a line in the axial direction. The same number of operation rings as the keyhole ring, the second support shaft provided in parallel with the shaft member and the first support shaft in the casing, and the second support shaft fitted in a line in the axial direction to form a shaft. And a plurality of intermediary gears that mesh with the gear portion of the keyhole ring and the gear portion of the operating ring when moved by a predetermined amount in the direction. Further, the insertion member is formed in the axial groove of the shaft member. An object of the present invention is to provide a key including an insertion portion to be inserted, and a retaining protrusion that is provided at predetermined intervals in the longitudinal direction of the insertion portion and that can pass through only the cutout portion of each keyhole ring.

[0005]

According to the first aspect of the invention, the key purchaser may set the unlocking number as follows. In other words, instead of the insertion member, a plate-shaped spacer is previously inserted into the axial groove and the cutout portion on the key body side, and the cutout portions of all the keyhole rings are positioned at the positions of the axial groove of the shaft member. In step 1, rotate each operation ring relative to each keyhole ring to determine how much the pins of each operation ring should be moved in the circumferential direction with respect to the reference position of the shaft member, and place the pin at that position. Stop. Then, after this, the pin may be pushed inward. As a result, the inner end of the pin is moved to the inner side of the inner peripheral surface of each operation ring, and is pressed into one of the engaging portions of the keyhole ring. As a result, the keyhole ring and the operation ring are integrally connected, and the setting of the unlocking number is completed. Then, after this, the spacer is pulled out, the insertion member is inserted into the axial groove and the notch instead of the spacer, and the operating ring (keyhole ring) is appropriately rotated to lock it. In the second invention, the key purchaser purchases the key in a state where the first casing and the second casing are separated, and then cuts out all the keyhole rings at the positions of the axial grooves of the shaft member. With the parts positioned, the rotational positions are determined such that the operation rings provided on the second casing are rotated so that the numbers to be set are in a horizontal row.
Connect integrally to the casing. Along with this, the gear part of the operation ring and the gear part of the keyhole ring mesh with each other, so that the setting of the unlocking number and the assembling of the key body are completed very easily. After that, the insertion member is inserted into the axial groove and the cutout portion of the shaft member, and then each operation ring is rotated to lock it. Furthermore, in the third aspect of the invention, the key purchaser aligns the cutout portions of the keyhole rings in a straight line in a state in which the unlocking numbers are positioned in a horizontal line by rotating the operation rings. Then, the insertion member may be inserted into the axial groove of the shaft member through the notches. With the insertion of the insertion member in this way, the intermediary gears mesh with the gear portions of the keyhole ring and the operation ring. This completes the setting of the unlocking number. As described above, according to the present invention, it is possible to provide a key in which the unlocking number can be set extremely easily as compared with the related art.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the illustrated embodiments. In FIG. 1 to FIG. 3, reference numeral 1 is a numbering key according to the present invention. This key 1 consists of a wire 2 of the required length,
The wire 2 includes a key body 3 connected to one end 2a of the wire 2, and an insertion member 4 further connected to the other end 2b of the wire 2 and inserted into the key body 3 and connected when required. The key body 3 has one end 2 of the wire 2.
The shaft member 5 in which a is connected to the base portion 5a, the three keyhole rings 7 fitted in the small diameter portion 5b of the shaft member 5 with the leaf spring 6 housed inward, and each of these keyhole rings 7 In addition to the three operation rings 8 for accommodating the above, each keyhole ring 7 and the operation ring 8 are provided with a retainer 12 as a retaining means for preventing the key ring 7 and the operation ring 8 from falling off the shaft member 5. In addition, in FIG. 1, in order to simplify the drawing, the leaf spring 6, the keyhole ring 7, and the operating ring 8 are respectively
Only the number is displayed. Base portion 5a of the shaft member 5
The tip side is a small diameter portion 5b having a smaller diameter than that, and an axial groove 5c is formed with a predetermined width and depth in the entire axial direction of the small diameter portion 5b. Further, on the outer peripheral portion of the small diameter portion 5b, a flat surface is formed which is orthogonal to the width direction of the axial groove 5c and is cut out at a portion displaced from the axial groove 5c in the circumferential direction by the same distance. Then, the body portion 6a of the U-shaped leaf spring 6 is engaged with the small-diameter portion 5b thus formed. The axial length of the small-diameter portion 5b is set to be slightly longer than the axial length of the three operation rings 8 that are overlapped in a line. Therefore, when the small-diameter portion 5b is inserted into the keyhole ring 7 housed in the operation ring 8, the tip of the small-diameter portion 5b projects outwardly from the outermost keyhole ring 7 ( (Fig. 2). An annular groove 5d that engages the retainer 12 with the outer circumference of the tip of the small-diameter portion 5b protruding in this way.
Is formed. Then, the retainer 12 having a substantially C-shape is engaged with the annular groove 5d from the lower side in FIG. 1, and the retainer 12 does not overlap the annular groove 5d by engaging in such a manner. There is. Further, the base portion 5a of the shaft member 5 is formed in a cylindrical shape, and the one end 2a of the wire 2 is rotatably connected to the inside thereof, and
In the outer peripheral portion of the base portion 5a, which is an extension of the axial groove 5c,
A protruding portion 5e that protrudes outward in the radial direction is formed. The protrusion 5e is used as a reference position for unlocking. Instead of providing the protrusion 5e, a mark such as a black circle may be attached to the outer peripheral surface provided with the protrusion 5e. Each of the keyhole rings 7 is substantially cup-shaped and is manufactured to have the same shape and size. The through hole 7 into which the small-diameter portion 5b of the shaft member 5 is inserted is formed in the central portion of the end surface 7a which is the bottom portion.
b is drilled. Further, notches 7c of the same size are formed on the end surface 7a so as to be continuous from the through holes 7b. Engagement grooves 7d having the same depth and width are formed on the outer peripheral surface of each keyhole ring 10 at ten positions at equal intervals in the circumferential direction. A small recess may be provided instead of the engagement groove 7d. The notch 7c described above is formed at a predetermined position in the circumferential direction corresponding to one of the engagement grooves 7d. Further, on the inner peripheral surface of each keyhole ring 7, engaging grooves 7e having a semicircular cross section are formed at 10 positions at equal intervals in the circumferential direction. Next, the leaf spring 6 has a U-shaped body 6a.
And an arcuate portion 6b extending in an arcuate shape from both ends of the main body portion 6a toward the outside. The free ends of these arcuate portions 6b are positioned 180 degrees apart from each other in the circumferential direction, and are formed in a semicircular cross section having a size that allows them to fit into the engagement grooves 7e of the keyhole ring 7. Has been done. The leaf spring 6 configured as described above is housed in the keyhole ring 7 in a state where the central portions of the arc portions 6b and the main body portion 6a located on the opposite side of the arc portions 6b are in close contact with the inner peripheral surface of the keyhole ring 7. At the same time, the tips of the arcuate portions 6b are respectively fitted into two of the engaging grooves 7e of the keyhole ring 7. As a result, the leaf spring 6 is fitted to the inner peripheral surface of the keyhole ring 7 so as not to fall off, and the keyhole ring 7 in that state is fitted to the small diameter portion 5b of the shaft member 5. At this time, the leaf spring 6 is engaged with the small diameter portion 5b of the shaft member 5 so that the central portion of the body portion 6a does not intersect the axial groove 5c of the shaft member 5, and the main body portion 6a and the arc portion 6b are separated from each other. The boundary is located on the opening side of the axial groove 5c. This allows the insertion member 4 to be deeply inserted into the axial groove 5c without interfering with the leaf spring 6. Further, by engaging the leaf spring 6 with the small-diameter portion 5b in this manner, the leaf spring 6 cannot rotate relative to the small-diameter portion 5b, but the keyhole fitted to the small-diameter portion 5b together with the leaf spring 6 is provided. The ring 7 can relatively rotate with respect to the small diameter portion 5b and the leaf spring 6 when a strong rotational force is applied to some extent. That is, when the rotational force applied to the keyhole ring 7 is extremely small, the tip ends of both arc portions 6b of the leaf spring 6 are fitted into the engagement groove 7e of the keyhole ring 7 and cannot be removed, so that the small diameter portion 5b and the leaf spring 6 are not removed. On the other hand, the keyhole ring 7 does not rotate relative to each other. On the other hand, when a relatively strong rotational force is applied to the keyhole ring 7, both arc portions 6b of the leaf spring 6 bend toward the inner side, so that the tip portions of both arc portions 6b are engaged until then. After the engagement state with the engagement groove 7e is released, the engagement with the engagement groove 7e at the adjacent position allows the small diameter portion 5b and the leaf spring 6 to feel with a click feeling. The keyhole ring 7 is adapted to rotate relatively. Next, each operation ring 8 is also manufactured to have the same shape and size, and its inner diameter is set to be slightly larger than the outer diameter of the keyhole ring 7, and the inner peripheral surface of one end in the axial direction of the through hole 8A has a radius. The annular wall portion 8B extends inward in the direction. Annular wall 8B
On the inner surface of the key hole 7, concave portions 8D are formed at predetermined intervals in the circumferential direction. On the other hand, as shown in FIG. 4, on the outer surface of the end surface 7a of the keyhole ring 7, the operation ring is formed. Two protrusions 7f that can be fitted into the concave portions 8D of 8 are formed. The keyhole ring 7 is housed in the through hole 8A of the operation ring 8 so that the end surface 7a of the keyhole ring 7 is brought into contact with the annular wall portion 8B of the operation ring 8 and the protrusion of the keyhole ring 7 is formed. 7f is a recess 8D of the operation ring 8
It is fitted to. As a result, when the keyhole ring 7 and the operation ring 8 are relatively rotated, the protrusion 7f
The concave portion 8D and the concave portion 8D are fitted with each other or the fitted state is released, and a click feeling can be given to the user. Further, on the outer peripheral portion of the operation ring 8, a protruding portion 8a protruding outward in the radial direction is formed in conformity with the shape of the protruding portion 5e of the shaft member 5, and at the shaft portion of the protruding portion 8a. Has a through hole 8b penetrating in the radial direction. Then, the pin 13 is fitted into the through hole 8b. In this embodiment, when the pin 13 is fitted in the through hole 8b, the inner end 13a of the pin 13 is positioned in the through hole 8b as shown in FIGS. 2 and 5 (a). And the end portion 13b on the outer side of the pin 13 has the protruding portion 8a.
It is in a state of protruding outward from the tip surface of. Further, on the outer peripheral surface of the operation ring 8, a position that divides the circumferential direction into 10 equal parts from the reference position that becomes the above-mentioned protruding portion 8a is obtained, and assuming that the protruding portion 8a that becomes the reference position is 0, the protruding portion 8a Nine numbers starting from 1 to 9 are displayed in numerical order from one adjacent position to the other position. Each operation ring 8 configured as described above is adapted to accommodate each keyhole ring 7 in the state in which the leaf spring 6 is accommodated, and each keyhole ring 7 (each operation ring 8) in that state is made to have a small diameter of the shaft member 5. After being sequentially fitted to the portion 5b, one end of each innermost operation ring 8 in the axial direction is deeply fitted to a position where it abuts on the end face of the base portion 5a of the shaft member 5, and each operation ring at an adjacent position. 8 is polymerized in the axial direction (FIG. 2). As a result, the annular wall portion 8b of the operation ring 8 at the outermost position
Since the tip end portion of the shaft member 5 projects further than that, the retainer 12 is engaged with the annular groove 5d of the projected tip end portion from the lower side. The retainer 12 prevents the keyhole ring 7 and the operation ring 8 from falling off the shaft member 5, and the assembly of the key body 3 is completed. Then, when this assembly is completed, as described above, the inner end portion 13a of the pin 13 is
Is located in the through hole 8b, so that the operation ring 8 can rotate relative to the keyhole ring 7.
On the other hand, the insertion member 4 inserted into the key body 3 is a plate-shaped insertion portion having a thickness slightly smaller than the width of the axial groove 5c of the shaft member 5 and having the same size as the length of the small diameter portion 5b. 4a. The width of the insertion portion 4a is set smaller than the inner diameter of the through hole of the keyhole ring 7. On one side of the insertion portion 4a, a tip portion 4b and a retaining projection 4c protruding from the tip portion 4b in a direction orthogonal to the longitudinal direction at a total of three locations at predetermined intervals.
Is formed. The protrusion dimension of the retaining projection 4c is set smaller than the radial dimension of the cutout portion c of the keyhole ring 7. Therefore, only when the cutout portion c of each keyhole ring 7 is in the state of overlapping with the axial groove 5c of the shaft member 5, the insertion member 4 is inserted through the through hole 7b and the cutout portion c of each keyhole ring 7. Can be inserted into the axial groove 5c of the shaft member 5, and can be removed from the inserted state. Further, the base portion 4d of the insertion member 4 is formed in a cylindrical shape having a larger diameter than the insertion portion 4a, and the cylindrical base portion 4 is formed.
The other end 2b of the wire 2 is rotatably connected to d. Further, a recess 4e is formed at a predetermined position on the outer peripheral portion of the base 4d so as to match the outer diameter of the pin 13, and the recess 4e is provided outside the pin 13 when setting an unlocking number to be described later. The pin 13 is pushed toward the inside of the operation ring 8 by engaging with the end portion 13b on the side. When the key 1 having the above-described structure is commercially available, the key body 3 is assembled and the insertion member 4 is separated from the key body 3 as shown in FIG. The notch 7c of each keyhole ring 7 in the key body 3 is positioned so as to coincide with the axial groove 5c of the shaft member 5, and in this state, the notch 7c and axial groove 5c of each keyhole ring 7 are formed. A plate-shaped spacer 14 is inserted across In this state, as shown in FIG. 5A, the inner end 13a of the pin 13 is located in the through hole 8b of the operation ring 8, so that the key hole ring 7 is operated. The ring 8 can be rotated relative to the normal direction. From this state, the purchaser of the key 1 sets an arbitrary 3-digit unlocking number as follows. That is, when the unlocking number is set to, for example, 135, first, the number "1" on the operation ring 8 located on the leftmost side (outer side) corresponds to the protruding portion 5e (reference position) of the shaft member 5. The operation ring 8 to the position where
At that position, the pin 13 is pushed inward.
As a result, the inner end 13a of the pin 13 is press-fitted into one of the axial grooves 7d of the keyhole ring 7 to expand the diameter (FIG. 5 (b)). As a result, the leftmost keyhole ring 7
The relative rotation between the operating ring 7 and the operating ring 7 is prevented. In addition, in the present embodiment, the concave portion 4e on the side of the insertion member 4 is provided with the pin 13
The pin 13 is pushed inward by engaging with the outer end 13b of the pin. After that, the operation ring 8 located in the center is rotated to position the "3" at the reference position directly beside the numeral "1" of the operation ring 8 on the left side, and in that state, as described above. The pin 13 is pushed inward to connect the keyhole ring 7 and the operation ring 8. Next, the operation ring 8 on the rightmost side is rotated so that the numeral "5" is located at the reference position just beside the numeral "3" of the central operation ring 8 and the pin 13 is moved inward. Then, the operation ring 8 is connected to the keyhole ring 7 at the inner position by pushing the key ring. This completes the setting of the unlocking number "135". After that, after the spacer 14 is pulled out from the key body 3, the end face of the base portion 4d of the insertion member 4 is inserted into the cutout portion 7c of each keyhole ring 7 while the end face of the insertion member 4 is inserted into the shaft member 5. The entire insertion portion 4a of the insertion member 4 is inserted into the axial groove 5c of the shaft member 5 until it comes into contact with the tip surface (FIG. 2). In this state, the retaining protrusions 4c are located in the inner space on the right side of the end surface 7a of each keyhole ring 7, so that the keyhole ring 7
The operating ring 8 can rotate with respect to the shaft member 5 via the leaf spring 6. Therefore, after inserting the insertion member 4 into the key body 3, the keyhole ring 7 and the operation ring 8 are appropriately rotated through the leaf spring 6 to set the number "135" set above.
Disturb the array of. In this way, locking is completed. Then, in this locked state, the insertion member 4 and the key body 3
Even if it is pulled so as to be separated right and left, the retaining projection 4c engages with the end surface 7a of each keyhole ring 7,
The insertion member 4 and the key body 3 are never separated. In order to unlock the key 1 locked in this way, each operation ring 8 is rotated by a required amount, and the number "13" set above is set.
5 ”is rotated until it becomes a reference position corresponding to the protrusion 5e. As a result, the cutout portion 7c of the keyhole ring 7 overlaps with the axial groove 5c, so that the retaining projection 4c of the insertion member 4 is prevented.
Can be passed to the outside of the end face 7a through these cutouts 7c, and is unlocked by pulling out the insertion member 4 from the key body 3. In the present embodiment, since the key body 3 is provided with the leaf spring 6, when the operation rings 8 (keyhole ring 7) are relatively rotated with respect to the shaft member 5 after setting the unlocking number, the leaf spring 6 is used. Due to the flexibility of the arcuate portion 6b in 6, the tip of the arcuate portion 6 can be sequentially fitted into the engagement groove 7e of the keyhole ring 7 and the fitting state is sequentially released. As the ring 7) is rotated, it feels like a click or click. Also, when the operation ring 8 is relatively rotated with respect to the keyhole ring 7 when setting the unlocking number described above, the projection 7f of the keyhole ring 7 is sequentially fitted into the recess 8D of the operation ring 8 so that the user can Feels a light click. As described above, in the key 1 of the present embodiment, in order to set the unlocking number, it suffices to simply rotate the operation rings 8 and then push the pin 13 after purchasing the key 1, which is extremely simple. You can set the unlocking number in. Further, in the key 1 of the present embodiment, since the three sets of the operation ring 8 and the keyhole ring 7 may be manufactured in the same shape and in the same size, the manufacturing cost of the key 1 can be reduced, and the operation ring 8 and The storage and management of the keyhole ring 7 becomes extremely easy. In the above embodiment, the outer peripheral portion of the operation ring 8 is numbered, but alphabets A to J may be displayed in order. Further, in the above embodiment, the rotation amount of the operation ring 8 is recognized based on the number attached to the operation ring 8. However, the number on the outer peripheral portion of the operation ring 8 is deleted and the operation ring is replaced with the operation ring. The rotation position of each operation ring 8 at the time of unlocking may be determined based on the click feeling when rotating 8. In contrast to this embodiment, the conventionally known key 1 has the configuration shown in FIG. That is, the engagement protrusions 7d are formed at equal intervals on the outer peripheral surface of the keyhole ring 7, while the engagement groove 8 into which the engagement protrusion 7d of the keyhole ring 7 is fitted is formed on the inner peripheral surface of the operation ring 8.
c was formed. In the case of this conventional key 1, the purchaser of the key 1 changes the fitting position of the operation ring 7 in the circumferential direction with respect to the key hole ring 7 in the state where the notch portion is located at the reference position, You can set any unlocking number. However, in the case of the conventional key 1 having such a configuration, since the key body 3 is commercially available in a disassembled state, the purchaser of the key 1 sets the unlocking number and assembles the key body 3 at the same time. It has been pointed out that there is a drawback in that those tasks are complicated and complicated because it is necessary to perform. Next, FIGS.
Shows another embodiment of the operating ring 8. That is, in the operation ring 8 shown in FIG.
The axial groove 8d is provided on the inner peripheral surface of the operation ring 8 by overlapping with the inner end of the through hole 8b of a. Then, at the time of marketing, the spacer 15 is inserted over the axial groove 8d of the operation ring 8. By doing so, the end portion of the pin 13 on the outer side has the protruding portion 8a.
Although it is exposed to the outside, it is possible to prevent the outer end portion 13b of the pin 13 from coming into contact with surrounding equipment or the like and being pushed inward when the operation ring 8 is conveyed. it can. Further, in the operation ring 8 shown in FIG. 8, the axial groove 8d is formed on both side portions on the tip side of the protrusion 8a, and the axial groove 5f is formed on both side portions on the tip side of the protrusion 5e of the shaft member 5. are doing. The axial groove 5f of the shaft member 5 and each operating ring 8 are configured to cover the outer end 13a of the pin 13 by engaging a cover 16 having a substantially C-shaped cross section over the axial groove 8d. Is. Even with the operation ring 8 having such a configuration, the same effect as in FIG. 7 can be obtained. Further, the operation ring 8 shown in FIG.
An axial groove 8d is formed in the center of the front end surface of a so as to overlap with the end of the through hole 8b. In the operation ring 8 shown in FIG. 9, the end 13b on the outer side of the pin 13 is located on the inner side of the axial groove 8d. Since it is possible to prevent the end portion 13b from coming into contact with surrounding equipment or the like, the same effect as in FIG. 7 can be obtained. Furthermore, the operation ring 8 shown in FIG.
An annular projection 8F extending in the axial direction is formed on the outer surface of the annular wall portion 8B. As described above, when the keyhole ring 7 is housed in the operation ring 8, the projection 7f of the keyhole ring 7 is fitted in the recess 8D of the operation ring 8, and in that state, the operation ring 8 is inserted into the keyhole ring 7 When rotated with respect to, the projection 7f fits into or separates from the recess 8D. At this time, as shown by the imaginary line, the annular wall portion 8B elastically deforms to the left in the drawing, but the internal space of the annular protrusion 8F allows the elastic deformation of the annular wall portion 8B. I am trying.
With such a configuration, the annular wall portion 8 adjacent to the recess 8D is formed.
The surface on the right side of B can be prevented from being damaged by the projection 7f, and the end portion on the right side of the keyhole ring 7 can be prevented from slidingly contacting and being damaged by the operation ring 8 at the adjacent position. In the operation ring 8 shown in FIG. 10, a plurality of slits may be further provided at predetermined positions in the circumferential direction on the inner peripheral edge of the annular wall portion 8B. This makes it easier for the annular wall portion 8B to bend leftward in the drawing, and prevents the right side surface of the annular wall portion 8B adjacent to the recess 8D from being damaged. Next, FIG. 11 shows the key body 1 of the key 101.
No. 03 of the second embodiment. 1 to 3
In the first embodiment shown in FIG. 2, the operation ring 8 is fitted to the keyhole ring 7, whereas in this embodiment, the operation ring 108 and the keyhole ring 107 are arranged in parallel in the axial direction and Are configured to work together. That is, in the embodiment of FIG. 11, the first casing 121 provided with the keyhole ring 107 and the second casing 122 provided with the operation ring 108 are separated from each other in the market. Keyhole ring 107 in this embodiment
Has a gear portion 107h formed on the outer peripheral portion on the side of the end surface 107a.
After the shaft member 105 having the same structure as that of the first embodiment is inserted through one of the through holes 121a formed at the opposite positions of both wall surfaces of the first casing 121 in the state of being positioned inside, The key hole ring 107 is penetrated, and the tip end of the shaft member 105 is penetrated through the through hole 12 on the end surface on the left side.
1a, and the retainer 112 similar to that of the first embodiment is engaged with the protruding annular groove 105d at the front end, whereby the three keyhole rings 107 are attached to the first casing 121.
The shaft member 105 is attached. Since the keyhole ring 107 in this state can rotate relative to the shaft member 105, in the state where the notch 107c of the keyhole ring 107 is located at the position of the axial groove 105c of the shaft member 105, a spacer (not shown) is placed. The axial groove 105c and the notch 107c are fitted together. Further, engaging grooves 121b having a predetermined dimension along the axial direction are formed on both upper and lower surfaces of the first casing 121, which are the opening side. On the other hand, openings are formed on both sides of the second casing 122, and a support shaft 123 is attached to the position of one opening, and the three operation rings 108 are freely rotatable on the support shaft 123. And the outer peripheral surface of the operation ring 108 is exposed through the opening. The outer peripheral surface of the operating ring 108 is divided into 10 equal parts, and the order is from 0 to 9
Up to 10 numbers are listed. Further, a gear portion 108d which meshes with the gear portion 107h of the keyhole ring 107 is formed on the outer peripheral portion of one end of the operation ring 108 in the axial direction. Further, in the inner part of the upper and lower positions of the opening on the side opposite to the operation ring 108 in the second casing 122, an engaging protrusion having a triangular cross section according to the size of the engaging groove 121b of the first casing 121. 122a is formed. With the above configuration, as shown in FIG. 11, the key 101 is sold in a state where both casings 121 and 122 of the key body 103 are disassembled. However, by purchasing this key 101, for example, an unlocking number "018" is given. When setting, each operation ring 108
Is rotated by the required amount, and the number of each operation ring 108 is aligned on the straight line at the position of the mark M indicating the reference position, so that "018" is displayed.
Rotate until and stop. Then, in this state, the engaging protrusion 122a of the second casing 122 is
It is fitted into the engaging groove 121b of the casing 121. Thereby, the first casing 121 and the second casing 12
The two are integrally connected, and the gear portion 108d of the operation ring 108 meshes with the gear portion 107h of the keyhole ring 107. This will set the unlock number and the key body 1
Since the assembly of No. 03 is completed, the axial groove 10 is beforehand prepared after this.
After removing the spacer (not shown) inserted in 5c, insert the insertion member 104 into the axial groove 105c instead, and rotate the operation ring 108 to disturb the number, and in conjunction with that, the keyhole Since the ring 107 also rotates, locking is completed. In such an embodiment as well, it is possible to obtain the same effects as those of the first embodiment. Next, FIGS. 12 to 13 show another embodiment of the key body 203. In this embodiment, the keyhole ring 207 and the operation ring 208 are made to interlock with each other via the intermediary gear 227 after setting the unlocking number. That is,
In this embodiment, three keyhole rings 20 are housed on one inner side of a single casing 221, and the keyhole ring 20 shown in FIG.
The keyhole ring 207 and the shaft member 205 are attached to the casing 221 in the same manner as in 1.
7 and a predetermined amount, the operation ring 2 is provided on the outer peripheral portion of the support shaft 223 at the position of the opening 221c as in FIG.
08 is rotatably attached. The casing 2 located between the keyhole ring 207 and the operation ring 208
The support shaft 2 on the side of the operation ring 208 is provided at the center of 21.
23, one end of a second support shaft 228 is fixed in parallel with the second support shaft 228, and a set of three intermediary gears 22 is attached to the support shaft 228.
7 are fitted in one row in the axial direction. When the key 201 configured as described above is marketed, the intermediary gear 227 is the gear portion 207h on the side of the keyhole ring 207 and the operation ring 2.
The gear portion 208d of No. 08 does not mesh. The cylindrical shaft portion of the intermediate gear 227 located on the outermost side is projected outward through the through hole formed in the casing 221. On the other hand, in this embodiment, the insertion member 204
A predetermined portion of the base portion 204d is extended outward in the radial direction to form a flange-shaped contact portion 204h. In such a configuration, when setting the unlocking number of "142", for example, the operation ring 208 is first rotated by a required amount so that the numeral of the operation ring 208 is next to "142" at the reference position marked with the mark M. Rotate until they line up. After this, after removing the spacer (not shown) previously inserted in the axial groove 205c, the insertion member 204 is attached to the base portion 204d thereof.
Is inserted deeply into the axial groove 205c until the end surface of the contact member comes into contact with the tip of the shaft member 205. Along with this, the contact portion 204h of the base portion 204d abuts on the shaft portion of the intermediate gear 227 exposed to the outside, and pushes the intermediate gears 227 toward the inside all at once, so that the intermediate gears 227 are Gear portion 208d of operation ring 208 and gear portion 207 of keyhole ring 207
mesh with h. Therefore, by this, the intermediate gear 22
The operation ring 208 and the keyhole ring 207 are interlocked via 7, and the arrangement of the numbers of the operation ring 208 is disturbed, whereby the setting of the locking and unlocking numbers is completed. In such an embodiment as well, it is possible to obtain the same effects as those of the first embodiment. A chain may be used instead of the wires 2, 102 and 202 in the above embodiment.

[0007]

As described above, according to the present invention, it is possible to provide the key in which the unlocking number can be set very easily as compared with the conventional one.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a state after assembling a main part of the key 1 shown in FIG.

FIG. 3 is a perspective view showing a state where the key 1 shown in FIG. 1 is commercially available.

FIG. 4 is a perspective view of the keyhole ring 7 shown in FIG. 1 viewed from the opposite direction.

5 is a cross-sectional view showing a state before and after setting an unlocking number of the main part shown in FIG.

FIG. 6 is an exploded perspective view showing a conventional key.

FIG. 7 is a perspective view showing another embodiment of the present invention.

FIG. 8 is a perspective view showing another embodiment of the present invention.

FIG. 9 is a sectional view showing another embodiment of the present invention.

FIG. 10 is a perspective view showing another embodiment of the present invention.

FIG. 11 is a perspective view showing another embodiment of the present invention.

FIG. 12 is a perspective view showing another embodiment of the present invention.

13 is a cross-sectional view of the main part of FIG.

[Explanation of symbols]

1 key 2 wire
3 Key body 4 Insert member 5 Shaft member
7 Keyhole ring 8 Operation ring 11 Washer
12 retainer

Front page continuation (72) Inventor Kazuharu Seki 2-14-2 Kamata, Setagaya-ku, Tokyo

Claims (3)

[Claims] 1. A string-shaped member made of a sturdy wire, a key body provided at one end of the string-shaped member, and an insert provided at the other end of the string-shaped member and connected to the key body when required. In a key provided with a member, the key body, a shaft member having an axial groove formed in the outer peripheral portion,
A through hole is formed in the center of the end surface extending in the radial direction, through which the shaft member is inserted, and cutout portions continuous from the through hole are formed on the end surface, and at equal circumferential intervals on the outer peripheral surface. A plurality of keyhole rings having engaging portions, and a plurality of operation rings having radial through holes formed at predetermined positions in the circumferential direction on the outer peripheral surface and rotatably fitted to the outer peripheral portions of the respective keyhole rings. And an end portion on the outer side of the operation ring that is fitted in the through hole and is exposed to the outside of the through hole, and is inserted toward each operation ring, and the end portion on the inner side thereof. Comprises a pin engaged with one of the engaging portions of each of the keyhole rings, and the insertion member has an insertion portion to be inserted into an axial groove of the shaft member, and a longitudinal direction of the insertion portion. At least the same number as the keyhole ring The key is provided with a retaining projection capable of passing only a notch formed on the end face of each keyhole ring. 2. A cord-shaped member made of a sturdy wire or the like, a key body provided at one end of the cord-shaped member, and an insert provided at the other end of the cord-shaped member and connected to the key body when required. A key provided with a member, wherein the key body is provided in a first casing and a second casing that are integrally connected to each other;
A shaft member having an axial groove formed in the outer peripheral portion, a gear portion is formed at a predetermined axial position of the outer peripheral portion, a through hole is bored in the center portion of the end face, and a notch portion continuous from the through hole is formed. A plurality of keyhole rings formed on the end face and fitted in the outer peripheral portion of the shaft member located in the first casing in a line in the axial direction, a support shaft provided in the second casing, and an outer peripheral portion. A gear part that meshes with the gear part of the keyhole ring is formed at a predetermined position, and the support shaft is composed of the same number of operation rings as the keyhole ring rotatably fitted in a line in the axial direction, When the first casing and the second casing are integrally connected, the gear portion of the keyhole ring and the gear portion of the operation ring are configured to mesh with each other. An insertion part that is inserted into the axial groove, The key to the longitudinal direction of being projected at predetermined intervals, characterized in that it comprises a retaining projection which can pass only notch of the respective keyhole ring insertion portion. 3. A string-like member made of a sturdy wire, a key body provided at one end of the string-like member, and an insert provided at the other end of the string-like member and connected to the key body when required. In a key provided with a member, the key body is provided in a casing, a shaft member having an axial groove formed on an outer peripheral portion, and a gear portion is formed at a predetermined axial position on the outer peripheral portion, and a central portion of an end face. A plurality of through-holes are formed in the casing, and a cutout portion continuous from the through-hole is formed in the end face, and the plurality of the shaft members are fitted in the outer peripheral portion of the shaft member located in the casing in a line in the axial direction. A keyhole ring, a first support shaft provided in the casing in parallel with the shaft member, and a gear portion formed at a predetermined position on the outer peripheral portion, and rotated in a row in the axial direction on the outer peripheral portion of the first support shaft. The same number of operation rings as the keyhole ring that is freely fitted, The second support shaft provided in parallel with the shaft member and the first support shaft in the casing, and the key hole ring when fitted to the second support shaft in a line in the axial direction and moved by a predetermined amount in the axial direction. And a plurality of intermediary gears that mesh with the gear portion of the operation ring and the gear portion of the operating ring, and the insertion member has an insertion portion to be inserted into an axial groove of the shaft member and a longitudinal direction of the insertion portion. A key provided with a retaining projection which is provided at predetermined intervals in the direction and is capable of passing only through the cutout portion of each of the keyhole rings.