JP2003034277A - Bicycle saddle device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase the strength of an upper end of a seat post and a bearing unit of the seat post side by dispensing with the welding of the upper end of the seat post and the bearing unit of the seat post, to enhance quality, and to reduce costs. SOLUTION: In a bicycle saddle device: the bearing units 1, 2 are arranged on the back surface of a saddle S and the upper end of a post P, respectively; and the saddle is fixed so as to freely rock back and forth at the upper end of the seat post by penetrating a fulcrum shaft 3 to the both bearing units. Between the seat post and the saddle, there are provided: a spring 4 that energizes the saddle in the direction where the saddle is constantly tilted forward; a latch means 5 that latches the saddle at a position of a normal use against the energization of the spring; a release means 6 that releases the latch means; and a lock mechanism 7 that locks the saddle tilted forward by the operation of the release means in a tilting state. The bicycle saddle device is characterized by integrally arranging the bearing unit 1 equipped to the seat post P to the upper end of the seat post so as to extend over therefrom.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a saddle device for a bicycle, in which the saddle is tilted when it is separated from the bicycle, and the tilted state is locked to prevent theft. The present invention is characterized in that the bicycle is prevented from being stolen by improving the bicycle so as not to be easily damaged, and the quality of the saddle device can be improved.

[0002]

2. Description of the Related Art Saddle devices of this type include, for example, JP-A-11-301543 and JP-A-11-105756.
Japanese Patent Laid-Open No. 11-59521 and Japanese Patent Laid-Open No. 1-95521
No. 0-287285.

[0003]

In the conventional saddle device, the bearing member on the seat post side that supports the saddle connected through the fulcrum shaft is attached to the upper end portion of the seat post in a T-shape by welding. However, there is a problem that it is difficult to maintain the constant quality because incomplete welds may be produced.

Further, this type of saddle device locks the bearing member on the seat post and the tilted saddle side bearing member by a locking mechanism, but there is an incomplete portion in welding. Then, the shock may easily remove the saddle together with the bearing member from the vehicle body, and the bicycle may be stolen. In order to solve the above inconvenience, the present invention proposes a saddle device having a new connecting structure for a seat post, avoiding welding of a bearing portion.

[0005]

According to the present invention, as means for solving the above-mentioned problems, bearing portions are provided on the back surface of the saddle and the upper end portion of the seat post, respectively, and a fulcrum shaft is inserted in common to both bearing portions. The saddle on the upper end of the seat post so that it can swing back and forth, and between the seat post and the saddle, a spring that always biases the saddle forward and a biasing force of this spring. And a locking mechanism for locking the saddle at a position during normal use, a releasing means for the locking means, and a locking mechanism for locking the forwardly tilted saddle in an inclined state by the operation of the releasing means. In a saddle device for a bicycle, there is provided a saddle device for a bicycle, wherein a bearing portion provided on the seat post side is integrally extended from an upper end portion of the seat post.

The saddle device of the present invention configured as described above has been conventionally performed because the seat post bearing, which is the base of the saddle device, is integrally formed from the upper end of the seat post. Since welding between both members becomes unnecessary, the weaknesses of the conventional device as described above can be eliminated, and the quality and accuracy can be improved. Further, it is possible to manufacture a saddle device having sufficient impact resistance.

The upper end portion of the seat post and the bearing portion connected to the post are constituted by a pair of left and right split members which are vertically divided into two halves, and both split members are arranged at a plurality of joint surfaces facing each other. The invention according to claim 2 is configured so as to be integrally fastened to each other through fastening means composed of the pin and the shaft hole. Therefore, since the bearing portion can be manufactured by die casting integrally with the seat post, the number of parts can be increased as compared with the conventional product. Therefore, the number of manufacturing processes is reduced, assembly is facilitated, and consistent quality is obtained. Further, there is an advantage that the cost can be reduced.

A latching means for latching the saddle in a position for normal use and a releasing means for the saddle are inserted together with a restoring spring into a slide guide hole opened at a rear end surface of a bearing portion on the seat post side, and are attached to an outer end thereof. An L-shaped push lever having a push button and an engaging portion provided on the inner side surface of the bearing portion on the saddle side and engaging with a hook-shaped hooking portion provided at the upper end of the push lever. The invention of claim 3 is
The structure of the hooking means and the releasing means becomes strong and the assembling becomes easy and the cost of the saddle device can be reduced. In addition, the releasing means provided as described above can perform the operation of releasing the saddle hook at a safe position, which is separated downward from the mounting portion of the goth bracket including the boat line and the cushion spring for the saddle.

In the present invention, the bearing portion provided on the saddle side is constituted by a substantially symmetric split member that is vertically divided into two halves, and the bearing portion on the seat post side is held from both left and right sides. According to the fourth aspect of the invention, as in the case of the seat portion on the seat post side, a half-divided type bearing portion can be manufactured by die casting, so that the portion is mainly manufactured by sheet metal working. Compared with the case, there are advantages that the manufacturing process and the number of parts are reduced, the assembling is easy, the quality can be kept constant, and the cost can be further reduced.

Further, in the invention of claim 4 above, a fulcrum shaft is provided in the front portion of the bearing portion on the saddle side through which a shaft hole commonly provided in the bearing portion on the seat post side is inserted, and the front of the fulcrum shaft is provided. A contact portion that supports the inclined position of the saddle is provided, and a step portion that engages with the contact portion and latches the saddle at the inclined position is provided at the front portion of the bearing portion on the seat post side. The rear portion of the bearing member on the saddle side is provided with a support portion for a girder fitting having boat lines and a saddle cushion spring on both outer side surfaces, and a locking portion for locking the saddle in an inclined position below the support portion. A mechanism is provided, and an outer end of a lock lever interlocking with the locking mechanism is provided so as to engage with a latching part provided above the rear portion of the bearing portion on the seat post side, and a front portion of the bearing portion on the seat post side is provided. And the spring receiving part on the rear of the saddle side bearing part respectively. , Between the two spring receiving portion, if stretched the spring biasing in a direction to tilt the saddle in one always
The structure of each of the above parts can be made stronger.

A cushion plate is half-buried on the rear upper surface of the bearing portion on the seat post side so that the rear rear surface of the saddle side bearing portion abuts on the upper surface of the cushion plate during normal use of the saddle. According to the fifth aspect of the present invention, the cushion plate cushions the contact between the saddle-side bearing portion and the seat post-side bearing portion that are normally used, so that the riding comfort of the bicycle can be improved.

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an exploded perspective view of an embodiment of the present invention, and FIG.
For the sake of explanation, a partially cutaway side view showing a normal use state together with an assembled state in which a saddle side bearing portion on the front side is removed, and FIG. 3 is a partially cutaway side view in which the saddle is inclined from the state of FIG. It is a figure.

In the drawings showing the embodiment, 1 is a bearing portion integrally extending from the upper end portion of the seat post P, 2 is a bearing portion attached to the back surface of the saddle S, 3 is both bearing portions 1, The fulcrum shafts 4 for supporting the bearing portion 2 on the saddle S side in a swingable manner by inserting 2 in common are provided between the saddle S and the seat post P so that the saddle S is always in the forward tilt direction. A biasing spring 5 is a latching means for latching the saddle S at a position during normal use as shown in FIG. Release means to release the, 7
Is a locking mechanism that locks the tilted state of the saddle S tilted forward as shown in FIG. 3 by the operation of the releasing means 6.

As shown in FIG. 1, the seat post P and the bearing portion 1 are composed of a pair of left and right split members a and a'which are vertically divided into two halves, and one of them is on the front side in the figure. The split member a of Fig. 2 is provided with a cylindrical shaft hole 8 communicating with a seated shaft hole 9 provided at the corresponding position of the other split member a'on the front part (left side in the drawing). , A plurality of pins 10 arranged on the inner side surface of one of the divided members a and a small shaft hole 11 provided at a corresponding position on the inner side surface of the other divided member a ′ are integrally formed by fitting. Join.

As shown in FIG. 1, the bearing portion 2 on the side of the saddle S also has a pair of left and right split members b, which are vertically divided into two halves.
One of the split members b, which is constituted by b ′ and is located on the front side in the drawing, has a shaft hole 13 provided at a common position with the shaft holes 8 and 9 of the bearing portion 1 on the seat post P side in the front portion. The other split member b ′ projects a fulcrum shaft 3 through which the shaft holes 8, 9 and 13 are inserted into the inner side face, and a plurality of pins 10 arranged on the inner side face of the one split member b and the other split member b ′. The fastening means 12 constituted by the small shaft hole 11 provided at the corresponding position on the inner side surface of b ′ is joined together by fitting.

The bearing portion 1 integrally coupled with the seat post P via the fastening means 12 projects the spring receiving portion 15 provided on the side of one of the split members a, as shown in FIG. In addition, the bearing portion 2 on the saddle S side holds the bearing portion 1 integrally coupled with the seat post P inside, and a pair of left and right split members b and b ′ are attached from both sides to fasten the fastening means 12. The spring receiving portions 16 are integrally connected to each other via the rear portion to form the spring receiving portion 16 facing the spring receiving portion 15. The spring 4 is stretched between the front and rear spring receiving portions 15 and 16. In addition, the divided members a, a ′, and
By the combination of b and b ′, the bearing portion 2 on the saddle S side is swingably connected to the bearing portion 1 on the seat post P side through the fulcrum shaft 3 so that the spring 4 always pulls the spring 4. It is biased forward.

As shown in FIGS. 2 and 3, a contact portion 17 for supporting the inclined position of the saddle S is formed in front of the fulcrum shaft 3 at the front portion of the bearing portion 2 on the saddle S side after the integration. A step portion 18 that engages with the contact portion 17 and locks the saddle S at the inclined position is formed at the front portion of the bearing portion 1 on the seat post P side. Further, the boat line 19 is provided on both outer side surfaces of the rear portion of the bearing portion 2.
And bracket 21 with cushion spring 20 and saddle
Of the locking mechanism 7 for locking the saddle S in the inclined position by exposing the keyhole 24 to one side surface in the hollow portion 23 formed laterally below the supporting portion 22. Be fitted.

In this embodiment, the locking mechanism 7 employs a known cylinder lock 25 having a key hole 24 of a round hole key type. As shown in FIG. 1, a rotary lever 26 is fitted to the inner end of the cylinder lock 25, and a lock lever 28, which is biased by a coil spring 27 in accordance with the rotation of the lever 26, is a part of the hollow portion 23. It is provided so as to go in and out of the inner side surface of the bearing portion 2 on the saddle S side along the flat surface portion 29 provided on the side surface.

On the other hand, in the bearing portion 1 on the side of the seat post P, which is integrated by sandwiching both side surfaces with the bearing portion 2 on the side of the saddle S, the rear end face is formed into an arcuate surface 30, and the bearing portion 2 on the side of the saddle S is formed. Is formed so as to allow the rotation of the bracket and the rotation of the countersunk bracket 21, and a slide guide hole 33 formed by a vertical groove 31 and a horizontal hole-shaped cavity 32 is provided at the lower end of the circular arc surface 30. The hooking means 5 for hooking the saddle S in a normal use state is inserted into the hole 33 together with the restoring coil spring 34.

In this embodiment, the latching means 5 and its releasing means 6 are provided on an L-shaped push lever 36 having a push button 35 at the outer end and on the inner side surface of the bearing portion 2 on the saddle side for pushing. It is constituted by a hook-shaped hooking portion 37 provided on the upper end of the lever 36 and an engaging portion 38 formed on one side of the flat surface portion 29 so as to be engaged, and the saddle S is formed substantially as shown in FIG. In the horizontal normal use state, the hooking portion 37 at the upper end of the push lever 36 is hooked on the engaging portion 38 of the saddle-side bearing portion 2 and the saddle S is pulled against the pulling of the spring 4. Hold in normal use.

When the user of the bicycle leaves the bicycle when the bicycle is parked, the push lever 36 is pushed against the restoring coil spring 34, and the engaging portion 38 and the latch portion 37 of the push lever 36 are pushed. Disengage the. The saddle S and the bearing portion 2 which are unlocked as described above are provided with the spring 4
The vehicle is tilted forward by the towing and is tilted to the state shown in FIG.

In the saddle S and the bearing portion 2 which are unlocked by the push lever 36, the abutting portion 17 provided at the front end of the bearing portion 2 has a step portion 1 at the front end of the bearing portion 1 on the seat post P side.
As shown in FIG. 3, it tilts forward by about 45 ° until it touches 8. When the locking mechanism 7 is operated in this forward tilted state,
As the lock lever 28 moves forward, as shown in FIG. 3, the front end portion 28 'is transferred onto the holding portion 40 provided in the shape of an eave at the upper end of the rear arc surface 30 of the bearing portion 1 on the seat post P side to lock the seat. Hang up. Therefore, it becomes impossible to raise the saddle S against the spring 4, and the bicycle is prevented from being stolen.

Since the saddle device of the present invention in which the bearing portion 1 on the seat post P side is integrally formed from the upper end portion of the seat post P as described above has no welded portion, it can be hit with a hammer or the like in the locked state. Even if it is damaged, it will not be destroyed and sufficient protection against burglary theft is possible.

The rear upper surface of the bearing portion 1 on the seat post P side having the cavity 32 for inserting the push lever 36 is provided with a recess 39 dug in a shallow plane, and is half-filled in the recess 39. By embedding the cushion plate 14 with, the rear surface of the bearing portion 2 on the saddle S side is brought into contact with the upper surface of the cushion plate 14 during normal use of the saddle S so that the cushion plate 14 is supported. The contact between the bearings 1 and 2 is buffered.

In carrying out the present invention, the shapes of the bearing portion 1 formed on the side of the seat post P and the bearing portion 2 on the saddle side are not limited to the embodiments shown in the drawings, and are in accordance with the gist of the present invention. The design may be changed accordingly.

[0026]

According to the saddle device of the present invention constructed as described above and used as described above, the seat post bearing, which is the base of the saddle device, extends integrally from the upper end of the seat post. Since it is installed and formed seamlessly, the conventional welding between both members becomes unnecessary, and the weakness of the welding process that tends to occur in general is eliminated, and the quality and accuracy of the bicycle can be improved. it can. In addition, it has an excellent effect that it is possible to manufacture a saddle device having sufficient impact resistance to prevent a burglary theft and having high reliability.

[Brief description of drawings]

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

FIG. 2 is a partially cutaway side view showing a normal use state together with an assembled state in which a bearing portion on a saddle side, which is a front side, is removed for explanation.

3 is a partially cutaway side view when the saddle is tilted from the state of FIG.

[Explanation of symbols] S saddle P seat post 1 Bearing member on the seat post side 2 Saddle side bearing member a, a'divided member of seat post and bearing member b, b'divided member of bearing member on saddle side 3 fulcrum axis 4 springs 5 hanging means 6 Release means 7 Locking mechanism 8 shaft holes 9 shaft holes 10 pin 11 shaft hole 12 Fastening means 13 shaft hole 14 Cushion board 15 Spring receiving part 16 Spring receiver 17 Contact part 18 steps 19 Boat Line 20 cushion spring 21 Yagura metal fittings 22 Support 23 Cavity 24 keyhole 25 cylinder lock 26 Rotating lever 27 coil spring 28 Lock lever (28 'tip) 29 Plane 30 arc surface 31 vertical groove 32 cavity 33 Slide guide hole 34 coil spring 35 push button 36 push lever 37 Hook 38 Engagement part 39 recess 40 holding part

Claims (5)

[Claims] 1. A bearing portion is provided on each of a back surface of a saddle and an upper end portion of a seat post, and a fulcrum shaft is inserted in common to both bearing portions, so that the saddle can be swung back and forth on the upper end portion of the seat post. And a spring that urges the saddle in a direction that always tilts the saddle forward between the seat post and the saddle, and a hook that holds the saddle in the position for normal use against the urging of the spring. In a saddle device for a bicycle, which comprises a stopping means, a releasing means for the hanging means, and a locking mechanism for locking the saddle tilted forward in an inclined state by the operation of the releasing means, a bearing portion provided on the seat post side, A bicycle saddle device characterized by being integrally extended from an upper end portion of a seat post. 2. The seat post and the bearing portion extending to the upper end of the seat post are composed of a pair of left and right split members which are vertically divided into two halves. Is configured to be integrally fastened via fastening means composed of a pin and a shaft hole arranged at a plurality of positions on the joining surfaces facing each other.
Bicycle saddle device described. 3. The locking means and the releasing means for locking the saddle at a position during normal use are provided in a slide guide hole opening at a rear end surface of a bearing portion on the seat post side.
An L-shaped push lever that is inserted together with a restoring spring and has a push button on the outer end, and a hook-shaped hooking portion that is provided on the inner surface of the saddle-side bearing portion and that is provided on the upper end of the push lever. The bicycle saddle device according to claim 1, wherein the saddle device is configured by an engaging portion that engages with the bicycle. 4. The bearing portion provided on the saddle side is a substantially left-right symmetrical split member that is vertically divided into two halves so as to hold the bearing portion on the seat post side from both left and right sides. The fulcrum shaft that is configured to pass through a shaft hole that is commonly provided in the bearing portion on the seat post side is provided in the front portion, and the abutting portion that supports the inclined position of the saddle in front of the fulcrum shaft. Is provided at the front portion of the bearing portion on the seat post side, and a step portion for engaging the abutting portion to lock the saddle in the inclined position is provided. A support portion for a shackle fitting having a boat wire and a cushion spring for a saddle is provided on the outer side surface, and a locking mechanism for locking the saddle at an inclined position is provided below the support portion, and a lock lever interlocking with the locking mechanism is provided. The outer end is provided above the rear portion of the bearing portion on the seat post side. Prepared to engage with the hook,
A spring receiving portion projects from a front portion of the seat portion side bearing portion and a rear portion of the saddle side bearing portion, and the spring that biases the saddle between the spring receiving portions in a direction that always inclines the saddle to one side. The saddle device for a bicycle according to claim 1, wherein the saddle device is stretched. 5. A cushion plate is half-buried on the upper surface of the rear portion of the seat post side bearing portion, and the rear portion of the saddle side bearing member abuts the upper surface of the cushion plate during normal use of the saddle. The saddle device for a bicycle according to claim 1, wherein the saddle device is adapted to be supported.